/* =============================================================
   AI Auto Replier - Design System
   Stripe-inspired premium SaaS design
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* =============================================================
   1. CSS Custom Properties
   ============================================================= */
:root {
    /* Brand */
    --primary: #635BFF;
    --primary-hover: #5147E5;
    --primary-light: #F0EEFF;
    --secondary: #0A2540;
    --accent: #00D4AA;
    --accent-hover: #00B894;

    /* Backgrounds */
    --bg: #F6F9FC;
    --surface: #FFFFFF;

    /* Feedback */
    --error: #DF1B41;
    --error-light: #FEF0F4;
    --warning: #F5A623;
    --warning-light: #FFF8EC;
    --info: #3498DB;
    --info-light: #EBF5FB;
    --success: #00D4AA;
    --success-light: #E6FAF5;

    /* Text */
    --text-primary: #0A2540;
    --text-secondary: #425466;
    --text-muted: #8898AA;

    /* Borders */
    --border: #E3E8EE;
    --border-light: #F0F3F7;

    /* Radii */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);

    /* Motion */
    --transition: 150ms ease;

    /* Typography */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* =============================================================
   2. Reset & Base
   ============================================================= */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* =============================================================
   3. Typography
   ============================================================= */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 0.5em;
}

h1 { font-size: 2.5rem; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: 2rem; font-weight: 700; letter-spacing: -0.015em; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }
h5 { font-size: 1.125rem; font-weight: 600; }
h6 { font-size: 1rem; font-weight: 600; }

p {
    margin-bottom: 1em;
    color: var(--text-secondary);
}

.text-sm { font-size: 13px; }
.text-lg { font-size: 16px; }
.text-xl { font-size: 18px; }

.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-error { color: var(--error) !important; }
.text-success { color: var(--success) !important; }
.text-white { color: #FFFFFF !important; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* =============================================================
   4. Layout Utilities
   ============================================================= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-sm {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; justify-content: center; align-items: center; }
.flex-col { display: flex; flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.justify-end { justify-content: flex-end; }

.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-5 { gap: 24px; }
.gap-6 { gap: 32px; }

.section { padding: 80px 0; }

.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }
.mt-5 { margin-top: 32px; }
.mt-6 { margin-top: 48px; }

.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; }
.mb-5 { margin-bottom: 32px; }
.mb-6 { margin-bottom: 48px; }

.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.w-full { width: 100%; }

/* =============================================================
   5. Buttons
   ============================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    text-decoration: none;
    font-family: var(--font);
}

.btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--primary);
    color: #FFFFFF;
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #FFFFFF;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--surface);
    color: var(--text-primary);
    border-color: var(--border);
}

.btn-secondary:hover {
    background-color: var(--bg);
    border-color: var(--text-muted);
}

.btn-ghost {
    background-color: transparent;
    color: var(--primary);
}

.btn-ghost:hover {
    background-color: var(--primary-light);
}

.btn-danger {
    background-color: var(--error);
    color: #FFFFFF;
    border-color: var(--error);
}

.btn-danger:hover {
    background-color: #C4163A;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-accent {
    background-color: var(--accent);
    color: var(--secondary);
    border-color: var(--accent);
    font-weight: 600;
}

.btn-accent:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
}

/* =============================================================
   6. Forms
   ============================================================= */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 14px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
    outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
    border-color: var(--error);
    box-shadow: 0 0 0 3px var(--error-light);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238898AA' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.form-error {
    color: var(--error);
    font-size: 13px;
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.form-hint {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 4px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

.input-group {
    display: flex;
    align-items: stretch;
}

.input-group .form-input {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    border-right: none;
}

.input-group .btn {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-group-icon {
    position: relative;
}

.input-group-icon .form-input {
    padding-left: 40px;
}

.input-group-icon .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

/* =============================================================
   7. Cards
   ============================================================= */
.card {
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: box-shadow var(--transition), transform var(--transition);
}

.card-interactive:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-light);
    background-color: #FAFCFE;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* =============================================================
   8. Tables
   ============================================================= */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    background: var(--surface);
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    padding: 12px 16px;
    border-bottom: 2px solid var(--border);
    background-color: #FAFCFE;
    white-space: nowrap;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

.table tbody tr:hover {
    background-color: #F8FAFC;
}

.table-striped tbody tr:nth-child(even) {
    background-color: #FAFCFE;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* =============================================================
   9. Navigation (Landing)
   ============================================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: background-color var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.nav-brand img,
.nav-brand svg {
    height: 32px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: color var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link.active {
    color: var(--primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary);
    border-radius: 1px;
}

.nav-auth {
    display: flex;
    gap: 12px;
    align-items: center;
}

.mobile-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: background-color var(--transition);
}

.mobile-menu-toggle:hover {
    background-color: var(--bg);
}

.mobile-menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition);
    position: relative;
}

.mobile-menu-toggle span::before,
.mobile-menu-toggle span::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition);
}

.mobile-menu-toggle span::before {
    top: -6px;
}

.mobile-menu-toggle span::after {
    top: 6px;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--surface);
    padding: 24px;
    z-index: 999;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu .nav-link {
    display: block;
    padding: 12px 16px;
    font-size: 16px;
    border-radius: var(--radius-md);
}

.mobile-menu .nav-link:hover {
    background-color: var(--bg);
}

.mobile-menu .nav-auth {
    flex-direction: column;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.mobile-menu .nav-auth .btn {
    width: 100%;
}

/* =============================================================
   10. Sidebar (Dashboard)
   ============================================================= */
.sidebar {
    width: 240px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--secondary);
    color: #FFFFFF;
    transition: width 200ms ease;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar.collapsed {
    width: 64px;
}

.sidebar.collapsed .sidebar-text {
    display: none;
}

.sidebar.collapsed .sidebar-link {
    justify-content: center;
    padding: 10px;
    margin: 2px 6px;
}

.sidebar.collapsed .sidebar-logo-text {
    display: none;
}

.sidebar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo img,
.sidebar-logo svg {
    height: 28px;
    width: auto;
    flex-shrink: 0;
}

.sidebar-logo-text {
    font-weight: 700;
    font-size: 1rem;
    white-space: nowrap;
}

.sidebar-nav {
    padding: 16px 0;
    flex: 1;
    overflow-y: auto;
}

.sidebar-section-label {
    padding: 8px 20px 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.4);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition);
    border-radius: var(--radius-md);
    margin: 2px 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
}

.sidebar-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
}

.sidebar-link.active {
    background-color: var(--primary);
    color: #FFFFFF;
}

.sidebar-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin: 12px 0;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-collapse-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 8px;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.sidebar-collapse-btn:hover {
    color: #FFFFFF;
    background-color: rgba(255, 255, 255, 0.1);
}

/* =============================================================
   11. Topbar (Dashboard)
   ============================================================= */
.topbar {
    height: 64px;
    background-color: var(--surface);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.topbar-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

.topbar-breadcrumb a {
    color: var(--text-muted);
}

.topbar-breadcrumb a:hover {
    color: var(--primary);
}

.topbar-breadcrumb span {
    color: var(--text-primary);
    font-weight: 500;
}

.topbar-right {
    display: flex;
    gap: 16px;
    align-items: center;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--radius-md);
    transition: background-color var(--transition);
}

.topbar-user:hover {
    background-color: var(--bg);
}

.topbar-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
}

.impersonation-banner {
    background-color: var(--warning);
    color: var(--text-primary);
    padding: 8px 16px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
}

/* =============================================================
   12. Modals
   ============================================================= */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1050;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms ease;
}

.modal-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background-color: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    width: 100%;
    transform: translateY(-20px) scale(0.98);
    transition: transform 200ms ease;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-backdrop.active .modal {
    transform: translateY(0) scale(1);
}

.modal-sm { max-width: 420px; }
.modal-lg { max-width: 800px; }

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--border-light);
}

.modal-header h3 {
    margin-bottom: 0;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-light);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-muted);
    transition: all var(--transition);
    font-size: 18px;
}

.modal-close:hover {
    background-color: var(--bg);
    color: var(--text-primary);
}

/* =============================================================
   13. Toasts
   ============================================================= */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    animation: slideInRight 300ms ease;
    min-width: 320px;
    max-width: 480px;
    pointer-events: auto;
    font-size: 14px;
}

.toast-success {
    background-color: var(--success-light);
    border-left: 4px solid var(--success);
    color: var(--text-primary);
}

.toast-error {
    background-color: var(--error-light);
    border-left: 4px solid var(--error);
    color: var(--text-primary);
}

.toast-warning {
    background-color: var(--warning-light);
    border-left: 4px solid var(--warning);
    color: var(--text-primary);
}

.toast-info {
    background-color: var(--info-light);
    border-left: 4px solid var(--info);
    color: var(--text-primary);
}

.toast-close {
    margin-left: auto;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1;
    padding: 0 2px;
    flex-shrink: 0;
}

.toast-close:hover {
    color: var(--text-primary);
}

/* =============================================================
   14. Badges & Pills
   ============================================================= */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.6;
    white-space: nowrap;
}

.badge-primary {
    background-color: var(--primary-light);
    color: var(--primary);
}

.badge-success {
    background-color: var(--success-light);
    color: #059669;
}

.badge-warning {
    background-color: var(--warning-light);
    color: #B7791F;
}

.badge-danger {
    background-color: var(--error-light);
    color: var(--error);
}

.badge-info {
    background-color: var(--info-light);
    color: var(--info);
}

.badge-neutral {
    background-color: var(--bg);
    color: var(--text-secondary);
}

/* =============================================================
   15. Progress Bars
   ============================================================= */
.progress {
    height: 8px;
    background-color: var(--border-light);
    border-radius: 100px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary);
    border-radius: 100px;
    transition: width 400ms ease;
}

.progress-bar-success { background-color: var(--success); }
.progress-bar-warning { background-color: var(--warning); }
.progress-bar-danger { background-color: var(--error); }

/* =============================================================
   16. Skeleton Loaders
   ============================================================= */
.skeleton {
    background: linear-gradient(90deg, var(--border-light) 25%, #E8ECF1 50%, var(--border-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 14px;
    margin-bottom: 8px;
    border-radius: 4px;
}

.skeleton-text:last-child {
    width: 70%;
}

.skeleton-heading {
    height: 24px;
    width: 60%;
    margin-bottom: 16px;
    border-radius: 4px;
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.skeleton-card {
    height: 200px;
    border-radius: var(--radius-lg);
}

/* =============================================================
   17. Tooltips
   ============================================================= */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background-color: var(--secondary);
    color: #FFFFFF;
    padding: 6px 12px;
    border-radius: var(--radius-md);
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
    z-index: 1200;
}

[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(-4px);
}

/* =============================================================
   18. Landing Page Components
   ============================================================= */

/* Hero */
.hero {
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #FFFFFF;
}

.hero-gradient h1,
.hero-gradient h2,
.hero-gradient p {
    color: #FFFFFF;
}

.hero h1 {
    font-size: 3.5rem;
    max-width: 800px;
    margin: 0 auto 20px;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

.hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 40px;
}

.hero-visual {
    margin-top: 60px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero-visual img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

/* Stats Bar */
.stats-bar {
    display: flex;
    justify-content: space-between;
    max-width: 800px;
    margin: 60px auto 0;
    padding: 32px 0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    color: inherit;
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
    margin-top: 4px;
}

/* How It Works */
.how-it-works {
    background-color: var(--surface);
}

.step-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 48px;
}

.step-card {
    text-align: center;
    padding: 40px 24px;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin: 0 auto 20px;
}

.step-card h3 {
    margin-bottom: 12px;
}

.step-card p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Features */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.feature-card {
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--border-light);
    transition: all 200ms ease;
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 24px;
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 0;
}

/* Pricing */
.pricing-section {
    background-color: var(--bg);
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
}

.pricing-toggle-label {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
}

.pricing-toggle-label.active {
    color: var(--text-primary);
}

.pricing-toggle-switch {
    width: 48px;
    height: 26px;
    background-color: var(--border);
    border-radius: 100px;
    position: relative;
    cursor: pointer;
    transition: background-color var(--transition);
}

.pricing-toggle-switch.active {
    background-color: var(--primary);
}

.pricing-toggle-switch::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background-color: #FFFFFF;
    border-radius: 50%;
    transition: transform var(--transition);
    box-shadow: var(--shadow-sm);
}

.pricing-toggle-switch.active::after {
    transform: translateX(22px);
}

.pricing-save-badge {
    background-color: var(--success-light);
    color: #059669;
    padding: 2px 10px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.pricing-card {
    background-color: var(--surface);
    border-radius: var(--radius-xl);
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all 200ms ease;
    position: relative;
}

.pricing-card:hover {
    box-shadow: var(--shadow-md);
}

.pricing-card.popular {
    border: 2px solid var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    z-index: 1;
}

.pricing-card.popular::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary);
    color: #FFFFFF;
    padding: 4px 16px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-card-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.pricing-card-description {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 24px;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.pricing-price .currency {
    font-size: 1.5rem;
    vertical-align: top;
    position: relative;
    top: 8px;
}

.pricing-period {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 20px;
}

.pricing-limits {
    background: rgba(99, 91, 255, 0.04);
    border: 1px solid rgba(99, 91, 255, 0.1);
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pricing-limit-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.pricing-limit-item svg {
    flex-shrink: 0;
    color: var(--primary);
}

.pricing-features {
    text-align: left;
    margin: 24px 0 32px;
}

.pricing-features li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li::before {
    content: '';
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='none'%3E%3Cpath d='M16.667 5L7.5 14.167 3.333 10' stroke='%2300D4AA' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

/* Testimonials */
.testimonials {
    background-color: var(--secondary);
    color: #FFFFFF;
}

.testimonials h2 {
    color: #FFFFFF;
}

.testimonials .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.testimonial-card {
    background-color: rgba(255, 255, 255, 0.08);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.testimonial-stars {
    color: #F5A623;
    font-size: 16px;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.testimonial-name {
    font-weight: 600;
    font-size: 14px;
}

.testimonial-role {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

/* FAQ */
.faq-section {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
    gap: 16px;
    user-select: none;
}

.faq-section .faq-question::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform var(--transition);
}

.faq-section .faq-item.active .faq-question::after {
    content: '-';
    transform: rotate(0deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 300ms ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding-top: 12px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, #4338CA 50%, var(--secondary) 100%);
    color: #FFFFFF;
    text-align: center;
    padding: 80px 0;
}

.cta-section h2 {
    color: #FFFFFF;
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 32px;
}

/* Footer */
.footer {
    background-color: var(--secondary);
    color: #FFFFFF;
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-brand {
    max-width: 280px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    margin-top: 16px;
    line-height: 1.7;
}

.footer-heading {
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 16px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    margin-top: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: color var(--transition);
}

.footer-link:hover {
    color: #FFFFFF;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    margin-top: 40px;
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 14px;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: 100px;
    background-color: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

/* =============================================================
   19. Auth Layout
   ============================================================= */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F6F9FC 0%, #E8EDFF 50%, #F0EEFF 100%);
    padding: 24px;
}

.auth-card {
    background-color: var(--surface);
    padding: 48px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 440px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo img,
.auth-logo svg {
    height: 40px;
    margin: 0 auto;
}

.auth-title {
    text-align: center;
    margin-bottom: 8px;
    font-size: 1.5rem;
}

.auth-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: 15px;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-footer a {
    font-weight: 500;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
    color: var(--text-muted);
    font-size: 13px;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--border);
}

/* =============================================================
   20. Dashboard Layout
   ============================================================= */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
}

.main-content {
    margin-left: 240px;
    flex: 1;
    background-color: var(--bg);
    transition: margin-left 200ms ease;
    min-width: 0;
}

.sidebar.collapsed ~ .main-content {
    margin-left: 64px;
}

.page-content {
    padding: 32px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.page-header .page-sub {
    margin: 0;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0;
}

.page-description {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 4px;
}

.stat-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-card {
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--border-light);
}

.stat-card-label {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

.stat-card-change {
    font-size: 13px;
    font-weight: 500;
    margin-top: 4px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.stat-card-change.positive {
    color: #059669;
}

.stat-card-change.negative {
    color: var(--error);
}

/* =============================================================
   21. Alerts
   ============================================================= */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.alert-success {
    background-color: var(--success-light);
    border: 1px solid #B2F5EA;
    color: #065F46;
}

.alert-error {
    background-color: var(--error-light);
    border: 1px solid #FECDD3;
    color: #9B1C31;
}

.alert-warning {
    background-color: var(--warning-light);
    border: 1px solid #FDE68A;
    color: #92400E;
}

.alert-info {
    background-color: var(--info-light);
    border: 1px solid #BFDBFE;
    color: #1E40AF;
}

/* =============================================================
   22. Dropdown
   ============================================================= */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background-color: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: 8px;
    z-index: 1020;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-4px);
    transition: all var(--transition);
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    width: 100%;
    text-align: left;
}

.dropdown-item:hover {
    background-color: var(--bg);
    color: var(--text-primary);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-light);
    margin: 4px 0;
}

/* =============================================================
   23. Tabs
   ============================================================= */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-light);
    gap: 0;
    margin-bottom: 24px;
}

.tab {
    padding: 12px 20px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition);
}

.tab:hover {
    color: var(--text-primary);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 200ms ease;
}

/* =============================================================
   24. Pagination
   ============================================================= */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: center;
}

.pagination-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition);
    cursor: pointer;
}

.pagination-btn:hover {
    background-color: var(--bg);
    color: var(--text-primary);
}

.pagination-btn.active {
    background-color: var(--primary);
    color: #FFFFFF;
}

.pagination-btn:disabled {
    opacity: 0.3;
    pointer-events: none;
}

/* =============================================================
   25. Empty State
   ============================================================= */
.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state h3 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state p {
    max-width: 400px;
    margin: 0 auto 24px;
}

/* =============================================================
   26. Premium Landing Page Styles
   ============================================================= */

/* --- Scroll Animations --- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered delays for grid items */
.landing-feature-grid .animate-on-scroll:nth-child(2),
.testimonial-grid .animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.landing-feature-grid .animate-on-scroll:nth-child(3),
.testimonial-grid .animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.landing-feature-grid .animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }
.landing-feature-grid .animate-on-scroll:nth-child(5) { transition-delay: 0.4s; }
.landing-feature-grid .animate-on-scroll:nth-child(6) { transition-delay: 0.5s; }

/* --- Floating Animation --- */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* --- Gradient Text --- */
.gradient-text {
    background: linear-gradient(135deg, #635BFF, #00D4AA);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Glass Card --- */
.glass-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
}

/* --- Glow on Hover --- */
.glow-on-hover {
    transition: all 0.3s ease;
}
.glow-on-hover:hover {
    box-shadow: 0 0 30px rgba(99,91,255,0.15), 0 8px 32px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

/* --- Gradient Button --- */
.btn-gradient {
    background: linear-gradient(135deg, #635BFF, #00D4AA);
    color: #FFFFFF;
    border: none;
    font-weight: 600;
    position: relative;
    z-index: 1;
}
.btn-gradient::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, #5147E5, #00B894);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}
.btn-gradient:hover {
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99,91,255,0.35);
}
.btn-gradient:hover::before {
    opacity: 1;
}

/* --- Glass Button --- */
.btn-glass {
    background: rgba(255,255,255,0.1);
    color: #FFFFFF;
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.btn-glass:hover {
    background: rgba(255,255,255,0.2);
    color: #FFFFFF;
    transform: translateY(-2px);
}

/* --- Transparent Navbar for Landing --- */
.navbar-landing {
    background-color: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}
.navbar-landing .nav-brand {
    color: #FFFFFF;
}
.navbar-landing .nav-link {
    color: rgba(255,255,255,0.8);
}
.navbar-landing .nav-link:hover {
    color: #FFFFFF;
}
.navbar-landing .btn-ghost {
    color: rgba(255,255,255,0.9);
}
.navbar-landing .btn-ghost:hover {
    background-color: rgba(255,255,255,0.1);
    color: #FFFFFF;
}
.navbar-landing .mobile-menu-toggle span,
.navbar-landing .mobile-menu-toggle span::before,
.navbar-landing .mobile-menu-toggle span::after {
    background-color: #FFFFFF;
}
.navbar-landing.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
}
.navbar-landing.scrolled .nav-brand {
    color: var(--text-primary);
}
.navbar-landing.scrolled .nav-link {
    color: var(--text-secondary);
}
.navbar-landing.scrolled .nav-link:hover {
    color: var(--primary);
}
.navbar-landing.scrolled .btn-ghost {
    color: var(--primary);
}
.navbar-landing.scrolled .btn-ghost:hover {
    background-color: var(--primary-light);
}
.navbar-landing.scrolled .mobile-menu-toggle span,
.navbar-landing.scrolled .mobile-menu-toggle span::before,
.navbar-landing.scrolled .mobile-menu-toggle span::after {
    background-color: var(--text-primary);
}

/* --- Landing Hero --- */
.landing-hero {
    padding: 160px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(160deg, #0A2540 0%, #1a1a4e 50%, #0A2540 100%);
    color: #FFFFFF;
}
.landing-hero-compact {
    padding: 160px 0 80px;
}
.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
}
.hero-glow-1 {
    width: 600px;
    height: 600px;
    background: rgba(99,91,255,0.15);
    top: -200px;
    right: -200px;
}
.hero-glow-2 {
    width: 500px;
    height: 500px;
    background: rgba(0,212,170,0.1);
    bottom: -200px;
    left: -150px;
}
.landing-hero-content {
    position: relative;
    z-index: 2;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: 100px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.9);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 32px;
}
.hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #00D4AA;
    animation: pulse 2s infinite;
}
.landing-hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    max-width: 850px;
    margin: 0 auto 24px;
    color: #FFFFFF;
}
.landing-hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.7);
    max-width: 640px;
    margin: 0 auto;
}
.landing-hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 40px;
}

/* --- Hero Mockup --- */
.hero-mockup {
    margin-top: 64px;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
    animation: float 6s ease-in-out infinite;
}
.mockup-window {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
.mockup-titlebar {
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    background: rgba(255,255,255,0.03);
}
.mockup-dots {
    display: flex;
    gap: 6px;
}
.mockup-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
}
.mockup-dots span:first-child { background: #FF5F57; }
.mockup-dots span:nth-child(2) { background: #FEBC2E; }
.mockup-dots span:last-child { background: #28C840; }
.mockup-title {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    font-weight: 500;
}
.mockup-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.mockup-email {
    padding: 20px;
    border-radius: 12px;
    text-align: left;
}
.mockup-email-incoming {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
}
.mockup-email-reply {
    background: rgba(0,212,170,0.08);
    border: 1px solid rgba(0,212,170,0.15);
}
.mockup-email-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.mockup-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: #FFFFFF;
    flex-shrink: 0;
}
.mockup-sender {
    font-weight: 600;
    font-size: 14px;
    color: #FFFFFF;
}
.mockup-time {
    font-size: 12px;
    color: rgba(255,255,255,0.4);
}
.mockup-auto-badge {
    margin-left: auto;
    padding: 3px 10px;
    border-radius: 100px;
    background: rgba(0,212,170,0.15);
    color: #00D4AA;
    font-size: 11px;
    font-weight: 600;
}
.mockup-email-body {
    font-size: 13px;
    line-height: 1.7;
    color: rgba(255,255,255,0.75);
}
.mockup-ai-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    padding: 8px;
    font-size: 12px;
    color: rgba(255,255,255,0.5);
    font-weight: 500;
}

/* --- Landing Stats --- */
.landing-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    max-width: 900px;
    margin: 80px auto 0;
    padding: 32px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
    position: relative;
    z-index: 2;
}
.landing-stat-item {
    flex: 1;
    text-align: center;
    padding: 0 24px;
}
.landing-stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.2;
    letter-spacing: -0.02em;
}
.landing-stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
    margin-top: 4px;
    font-weight: 500;
}
.landing-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    flex-shrink: 0;
}

/* --- Logos Section --- */
.landing-logos-section {
    padding: 48px 0;
    background: #FFFFFF;
    border-bottom: 1px solid var(--border-light);
}
.landing-logos-label {
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 24px;
}
.landing-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}
.landing-logo-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 15px;
}

/* --- How It Works Steps --- */
.landing-how-it-works {
    background: #FFFFFF;
}
.landing-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 64px;
    position: relative;
}
.landing-step {
    text-align: center;
    padding: 40px 28px;
    position: relative;
    border-radius: var(--radius-xl);
    background: var(--bg);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}
.landing-step:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}
.landing-step-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #635BFF, #00D4AA);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 20px;
}
.landing-step-line {
    display: none;
}
.landing-step-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(99,91,255,0.1), rgba(0,212,170,0.1));
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.landing-step h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}
.landing-step p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 0;
}

/* --- Landing Feature Grid --- */
.landing-features-section {
    background: var(--bg);
}
.landing-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}
.landing-feature-card {
    background: #FFFFFF;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 36px;
    transition: all 0.3s ease;
}
.landing-feature-card:hover {
    border-color: rgba(99,91,255,0.2);
}
.landing-feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(99,91,255,0.1), rgba(0,212,170,0.08));
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.landing-feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}
.landing-feature-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 0;
}

/* --- AI Showcase Section --- */
.landing-ai-showcase {
    background: linear-gradient(160deg, #0A2540 0%, #1a1a4e 100%);
    position: relative;
    overflow: hidden;
}
.landing-showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.landing-showcase-text h2 {
    font-size: 2.25rem;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}
.landing-showcase-list {
    margin-top: 24px;
}
.landing-showcase-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    color: rgba(255,255,255,0.7);
    font-size: 15px;
}
.landing-showcase-list li svg {
    flex-shrink: 0;
}

/* Showcase Conversation */
.showcase-conversation {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.showcase-msg {
    padding: 20px;
    border-radius: 14px;
    text-align: left;
}
.showcase-msg-customer {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
}
.showcase-msg-ai {
    background: rgba(0,212,170,0.08);
    border: 1px solid rgba(0,212,170,0.12);
}
.showcase-msg-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
    color: rgba(255,255,255,0.4);
}
.showcase-msg-ai .showcase-msg-label {
    color: #00D4AA;
}
.showcase-msg p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,0.8);
    margin-bottom: 0;
}
.showcase-ai-thinking {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 12px;
    color: rgba(255,255,255,0.4);
    font-weight: 500;
}
.showcase-thinking-dots {
    display: flex;
    gap: 4px;
}
.showcase-thinking-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #00D4AA;
    animation: pulse 1.5s infinite;
}
.showcase-thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.showcase-thinking-dots span:nth-child(3) { animation-delay: 0.4s; }

/* --- Landing Pricing Section --- */
.landing-pricing-section {
    background-color: var(--bg);
}

/* --- Testimonials Section --- */
.landing-testimonials {
    background: linear-gradient(160deg, #0A2540 0%, #1a1a4e 100%);
    position: relative;
    overflow: hidden;
}
.landing-testimonials .testimonial-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 32px;
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
}
.landing-testimonials .testimonial-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.12);
}

/* --- FAQ Section --- */
.landing-faq-section {
    background: #FFFFFF;
}

/* --- CTA Section --- */
.landing-cta-section {
    background: linear-gradient(135deg, #635BFF 0%, #4338CA 50%, #0A2540 100%);
    color: #FFFFFF;
    text-align: center;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}
.landing-cta-content {
    position: relative;
    z-index: 2;
}
.landing-cta-section h2 {
    color: #FFFFFF;
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}
.landing-cta-section p {
    color: rgba(255,255,255,0.8);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto 36px;
    line-height: 1.7;
}
.landing-cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* --- Landing Footer --- */
.landing-footer {
    background: #0A2540;
    color: #FFFFFF;
    padding: 80px 0 0;
}
.landing-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 48px;
}
.landing-footer-brand {
    max-width: 300px;
}
.landing-footer-brand .nav-brand {
    color: #FFFFFF;
}
.landing-footer-brand p {
    color: rgba(255,255,255,0.5);
    font-size: 14px;
    line-height: 1.7;
    margin-top: 8px;
}
.landing-footer-social {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}
.landing-footer-social-link {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    transition: all 0.2s ease;
}
.landing-footer-social-link:hover {
    background: rgba(255,255,255,0.12);
    color: #FFFFFF;
}
.landing-footer-heading {
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 20px;
    color: rgba(255,255,255,0.4);
}
.landing-footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.landing-footer-links a {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    transition: color 0.2s ease;
}
.landing-footer-links a:hover {
    color: #FFFFFF;
}
.landing-footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 24px 0;
    margin-top: 60px;
    text-align: center;
    color: rgba(255,255,255,0.3);
    font-size: 14px;
}

/* --- Contact Page --- */
.landing-contact-section {
    padding-top: 60px;
}
.landing-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    align-items: start;
}
.landing-contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.landing-contact-card {
    background: #FFFFFF;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all 0.3s ease;
}
.landing-contact-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-sm);
}
.landing-contact-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(99,91,255,0.1), rgba(0,212,170,0.08));
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.landing-contact-card h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}
.landing-contact-card p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 0;
}
.landing-contact-form-wrapper {
    position: relative;
}
.landing-contact-form-card {
    background: #FFFFFF;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-lg);
}
.landing-contact-form-card h2 {
    margin-bottom: 8px;
}
.landing-contact-form-subtitle {
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: 15px;
}

/* --- Pricing Page: Enterprise Card --- */
.landing-enterprise-section {
    background: var(--bg);
}
.landing-enterprise-card {
    background: linear-gradient(135deg, #0A2540, #1a1a4e);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 60px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.landing-enterprise-content .section-badge {
    background: rgba(255,255,255,0.1);
    color: #00D4AA;
}
.landing-enterprise-content h2 {
    color: #FFFFFF;
    font-size: 2rem;
    margin-bottom: 16px;
}
.landing-enterprise-content p {
    color: rgba(255,255,255,0.6);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 24px;
}
.landing-enterprise-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.landing-enterprise-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255,255,255,0.8);
    font-size: 15px;
    font-weight: 500;
}

/* --- Pricing Comparison Table --- */
.landing-comparison-table .table th {
    background: var(--bg);
    text-align: center;
}
.landing-comparison-table .table th:first-child {
    text-align: left;
}
.landing-comparison-table .table td {
    text-align: center;
}
.landing-comparison-table .table td:first-child {
    text-align: left;
    font-weight: 500;
}
.comparison-check {
    display: inline-flex;
    color: #00D4AA;
}
.comparison-dash {
    color: var(--text-muted);
}

/* --- Features Page: Row Layout --- */
.landing-feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.landing-feature-row-reverse {
    direction: rtl;
}
.landing-feature-row-reverse > * {
    direction: ltr;
}
.landing-feature-row-text .section-badge {
    display: inline-flex;
}
.landing-feature-row-text h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}
.landing-feature-row-text p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-secondary);
}
.landing-check-list {
    margin-top: 20px;
}
.landing-check-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 15px;
}
.landing-check-list li svg {
    flex-shrink: 0;
}

/* Feature Visual Cards */
.feature-visual-card {
    background: var(--bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-md);
}

/* Provider List */
.feature-visual-providers {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.feature-provider-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border-radius: 12px;
    background: #FFFFFF;
    border: 1px solid var(--border-light);
    transition: all 0.2s ease;
}
.feature-provider-item:hover {
    border-color: var(--primary-light);
}
.feature-provider-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.feature-provider-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}
.feature-provider-desc {
    font-size: 12px;
    color: var(--text-muted);
}
.feature-provider-status {
    margin-left: auto;
    padding: 3px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    background: var(--bg);
    color: var(--text-muted);
}
.feature-provider-status.active {
    background: var(--success-light);
    color: #059669;
}

/* Editor Visual */
.feature-visual-editor {
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    background: #FFFFFF;
}
.feature-editor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    background: #FAFCFE;
}
.feature-editor-label {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
}
.feature-editor-actions {
    display: flex;
    gap: 8px;
}
.feature-editor-btn {
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
}
.feature-editor-btn.active {
    background: var(--primary);
    color: #FFFFFF;
}
.feature-editor-content {
    padding: 20px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    font-family: var(--font-mono, 'SF Mono', 'Fira Code', monospace);
}
.feature-editor-content p {
    margin-bottom: 8px;
    color: var(--text-secondary);
}
.feature-var {
    display: inline-block;
    padding: 1px 8px;
    border-radius: 4px;
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
    font-size: 13px;
}

/* Modes Visual */
.feature-visual-modes {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.feature-mode-card {
    padding: 20px;
    border-radius: 12px;
    background: #FFFFFF;
    border: 1px solid var(--border-light);
    transition: all 0.2s ease;
}
.feature-mode-card.feature-mode-active {
    border-color: #00D4AA;
    background: rgba(0,212,170,0.03);
}
.feature-mode-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
}
.feature-mode-badge {
    margin-left: auto;
    padding: 2px 10px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    background: var(--success-light);
    color: #059669;
}
.feature-mode-card p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 0;
    padding-left: 30px;
}

/* Languages Visual */
.feature-visual-languages {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.feature-lang-item {
    display: flex;
    align-items: center;
    gap: 12px;
}
.feature-lang-flag {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}
.feature-lang-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    min-width: 80px;
}
.feature-lang-bar {
    height: 8px;
    border-radius: 100px;
    background: linear-gradient(135deg, #635BFF, #00D4AA);
    flex: 1;
}

/* =============================================================
   27. Responsive
   ============================================================= */
@media (max-width: 1280px) {
    .grid-4 { grid-template-columns: repeat(3, 1fr); }
    .stat-cards { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .stat-cards { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-card.popular { transform: scale(1); }
    .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .step-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }

    /* Landing responsive */
    .landing-hero-title { font-size: 3rem; }
    .landing-feature-grid { grid-template-columns: repeat(2, 1fr); }
    .landing-showcase-grid { grid-template-columns: 1fr; gap: 48px; }
    .landing-feature-row { grid-template-columns: 1fr; gap: 40px; }
    .landing-feature-row-reverse { direction: ltr; }
    .landing-steps { grid-template-columns: repeat(2, 1fr); }
    .landing-footer-grid { grid-template-columns: 2fr 1fr 1fr; }
    .landing-enterprise-card { grid-template-columns: 1fr; padding: 40px; }
    .landing-contact-grid { grid-template-columns: 1fr; }

    /* Sidebar overlay mode */
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0 !important;
    }
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        display: none;
    }
    .sidebar.open ~ .sidebar-overlay {
        display: block;
    }
}

@media (max-width: 768px) {
    .grid-2 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: 1fr; }
    .stat-cards { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }
    .testimonial-grid { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: 1fr; }
    .step-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }

    /* Navbar mobile */
    .nav-links { display: none; }
    .nav-auth { display: none; }
    .mobile-menu-toggle { display: flex; }

    /* Hero adjustments */
    .hero {
        padding: 100px 0 60px;
    }
    .hero h1 {
        font-size: 2.25rem;
    }
    .hero p {
        font-size: 1.1rem;
    }
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .stats-bar {
        flex-wrap: wrap;
        gap: 24px;
    }
    .stat-item {
        width: 50%;
    }

    /* Auth */
    .auth-card {
        padding: 32px 24px;
        max-width: 100%;
    }

    /* Dashboard */
    .page-content {
        padding: 20px 16px;
    }
    .topbar {
        padding: 0 16px;
    }

    .section {
        padding: 48px 0;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }

    .cta-section h2 { font-size: 1.75rem; }

    /* Landing responsive mobile */
    .landing-hero { padding: 120px 0 60px; }
    .landing-hero-compact { padding: 120px 0 60px; }
    .landing-hero-title { font-size: 2.25rem; }
    .landing-hero-subtitle { font-size: 1.05rem; }
    .landing-hero-cta {
        flex-direction: column;
        align-items: center;
    }
    .landing-hero-cta .btn { width: 100%; max-width: 320px; }
    .hero-mockup { margin-top: 40px; }
    .landing-stats {
        flex-wrap: wrap;
        gap: 0;
    }
    .landing-stat-item {
        width: 50%;
        padding: 16px;
    }
    .landing-stat-divider { display: none; }
    .landing-stat-number { font-size: 1.5rem; }
    .landing-logos { gap: 24px; }
    .landing-logo-item span { display: none; }
    .landing-steps { grid-template-columns: 1fr; }
    .landing-feature-grid { grid-template-columns: 1fr; }
    .landing-showcase-grid { grid-template-columns: 1fr; }
    .landing-showcase-text h2 { font-size: 1.75rem; }
    .landing-cta-section h2 { font-size: 2rem; }
    .landing-cta-section { padding: 60px 0; }
    .landing-cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    .landing-cta-buttons .btn { width: 100%; max-width: 320px; }
    .landing-footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .landing-footer-brand { max-width: 100%; }
    .landing-contact-grid { grid-template-columns: 1fr; }
    .landing-contact-form-card { padding: 28px; }
    .landing-enterprise-card {
        grid-template-columns: 1fr;
        padding: 32px;
    }
    .landing-enterprise-features { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero h1 { font-size: 1.75rem; }
    .hero p { font-size: 1rem; }
    .stat-number { font-size: 1.5rem; }
    .pricing-price { font-size: 2.5rem; }
    .auth-card { padding: 24px 20px; }
    .card-body { padding: 16px; }
    .card-header { padding: 16px; }
    .toast { min-width: 280px; }
    .toast-container { right: 12px; left: 12px; }
    .toast { max-width: 100%; }

    /* Landing 320px */
    .landing-hero-title { font-size: 1.85rem; }
    .landing-hero-subtitle { font-size: 0.95rem; }
    .hero-badge { font-size: 12px; padding: 6px 14px; }
    .mockup-email { padding: 14px; }
    .mockup-email-body { font-size: 12px; }
    .landing-step { padding: 28px 20px; }
    .landing-step-number { font-size: 2.5rem; }
    .landing-feature-card { padding: 24px; }
    .landing-cta-section h2 { font-size: 1.65rem; }
    .landing-contact-form-card { padding: 20px; }
    .feature-visual-card { padding: 20px; }
}

/* =============================================================
   27. Animations
   ============================================================= */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.fade-in { animation: fadeIn 300ms ease; }
.slide-in-up { animation: slideInUp 400ms ease; }
.slide-in-right { animation: slideInRight 300ms ease; }
.pulse { animation: pulse 2s infinite; }

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 600ms linear infinite;
}

.spinner-sm { width: 14px; height: 14px; border-width: 1.5px; }
.spinner-lg { width: 32px; height: 32px; border-width: 3px; }

/* =============================================================
   28. Print Styles
   ============================================================= */
@media print {
    .navbar,
    .sidebar,
    .topbar,
    .toast-container,
    .modal-backdrop,
    .btn,
    .no-print {
        display: none !important;
    }

    body {
        background: white;
        color: black;
        font-size: 12pt;
    }

    .main-content {
        margin-left: 0 !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}