/* ==========================================
   WatchTogether.io 2026 - Premium Dark Theme
   Modern, Clean, Engaging UX
   ========================================== */

:root {
    /* Core Colors */
    --bg-primary: #09090b;
    --bg-secondary: #0c0c0f;
    --bg-card: #111114;
    --bg-elevated: #161619;
    --bg-input: #1a1a1e;

    /* Text Colors */
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --text-dim: #52525b;

    /* Accent Colors */
    --accent-purple: #a855f7;
    --accent-purple-dim: rgba(168, 85, 247, 0.15);
    --accent-purple-glow: rgba(168, 85, 247, 0.5);
    --accent-green: #22c55e;
    --accent-green-dim: rgba(34, 197, 94, 0.15);
    --accent-green-glow: rgba(34, 197, 94, 0.5);
    --accent-blue: #3b82f6;
    --accent-pink: #ec4899;
    --accent-yellow: #eab308;

    /* Gradients */
    --gradient-purple: linear-gradient(135deg, #a855f7 0%, #7c3aed 100%);
    --gradient-green: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    --gradient-text: linear-gradient(135deg, #a855f7 0%, #ec4899 50%, #3b82f6 100%);

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.1);
    --border-hover: rgba(255, 255, 255, 0.15);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.7);
    --shadow-purple: 0 8px 32px rgba(168, 85, 247, 0.25);
    --shadow-green: 0 8px 32px rgba(34, 197, 94, 0.25);

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-2xl: 28px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100dvh;
    overflow-x: hidden;
}

::selection {
    background: var(--accent-purple);
    color: white;
}

:focus-visible {
    outline: 2px solid var(--accent-purple);
    outline-offset: 2px;
}

/* ==========================================
   Scrollbar
   ========================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

* {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

/* ==========================================
   Buttons - Base Styles
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
    color: var(--text-primary);
    background: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    white-space: nowrap;
    text-decoration: none;
}

.btn:hover {
    background: var(--bg-input);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0) scale(0.98);
}

.btn:focus-visible {
    outline: 2px solid var(--accent-purple);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px var(--accent-purple-dim);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: 1rem;
    border-radius: var(--radius-lg);
}

/* Button Variants */
.btn-primary {
    background: var(--gradient-purple);
    border: none;
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    box-shadow: var(--shadow-purple);
    transform: translateY(-2px);
}

.btn-primary:focus-visible {
    box-shadow: 0 0 0 4px var(--accent-purple-glow);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-default);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--accent-purple);
}

.btn-accent {
    background: var(--gradient-green);
    border: none;
    color: white;
}

.btn-accent:hover {
    box-shadow: var(--shadow-green);
    transform: translateY(-2px);
}

.btn-accent:focus-visible {
    box-shadow: 0 0 0 4px var(--accent-green-glow);
}

.btn-ghost {
    background: transparent;
    border: none;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    border: none;
    color: white;
}

.btn-danger:hover {
    box-shadow: 0 8px 32px rgba(239, 68, 68, 0.3);
}

/* ==========================================
   Animated Background
   ========================================== */
.bg-animation {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    will-change: transform;
    animation: orbFloat 30s infinite ease-in-out;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-purple-glow) 0%, transparent 70%);
    top: -200px;
    left: -100px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-green-glow) 0%, transparent 70%);
    bottom: -150px;
    right: -100px;
    animation-delay: -15s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.3) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -20s;
    opacity: 0.25;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(-40px, -20px) scale(1.02); }
}

/* Subtle noise overlay */
.bg-animation::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.02'/%3E%3C/svg%3E");
    opacity: 0.5;
}

/* ==========================================
   Layout
   ========================================== */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

/* ==========================================
   Navigation
   ========================================== */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    margin: 0 calc(-1 * var(--space-6));
    padding-left: var(--space-6);
    padding-right: var(--space-6);
    background: rgba(0, 0, 0, 0.85);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-tld {
    color: var(--accent-green);
}

.nav-links {
    display: flex;
    gap: var(--space-6);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--duration-fast) ease;
}

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

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    text-align: center;
    padding: var(--space-16) 0 var(--space-12);
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Live Badge */
.live-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
}

.live-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: livePulse 2s infinite;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-green-glow); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px transparent; }
}

.live-text {
    color: var(--text-muted);
}

#live-count {
    color: var(--text-primary);
    font-weight: 600;
}

/* Hero Title */
.hero-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    margin-bottom: var(--space-6);
}

.title-line {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.title-gradient {
    background: var(--gradient-text);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s linear infinite;
}

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

.hero-tagline {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: var(--space-10);
}

/* ==========================================
   Action Cards (Create/Join Buttons)
   ========================================== */
.hero-actions {
    display: flex;
    gap: var(--space-4);
    width: 100%;
    max-width: 640px;
    margin-bottom: var(--space-8);
}

.action-card {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    text-align: left;
    position: relative;
    overflow: hidden;
}

.action-card::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--duration-normal) ease;
}

.action-create::before {
    background: linear-gradient(135deg, var(--accent-purple-dim) 0%, transparent 50%);
}

.action-join::before {
    background: linear-gradient(135deg, var(--accent-green-dim) 0%, transparent 50%);
}

.action-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

.action-card:hover::before {
    opacity: 1;
}

.action-create:hover {
    border-color: rgba(168, 85, 247, 0.3);
    box-shadow: var(--shadow-purple);
}

.action-join:hover {
    border-color: rgba(34, 197, 94, 0.3);
    box-shadow: var(--shadow-green);
}

.action-icon-wrap {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.action-create .action-icon-wrap {
    background: var(--gradient-purple);
    color: white;
}

.action-join .action-icon-wrap {
    background: var(--gradient-green);
}

.action-icon {
    font-weight: 700;
}

.action-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    position: relative;
    z-index: 1;
}

.action-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.action-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.action-arrow {
    color: var(--text-dim);
    transition: all var(--duration-fast) ease;
    position: relative;
    z-index: 1;
}

.action-card:hover .action-arrow {
    color: var(--text-secondary);
    transform: translateX(4px);
}

/* Trust Row */
.trust-row {
    display: flex;
    gap: var(--space-8);
    justify-content: center;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.trust-item svg {
    color: var(--accent-green);
}

/* ==========================================
   Modals
   ========================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) ease;
    padding: var(--space-4);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    width: 100%;
    max-width: 440px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    position: relative;
    transform: translateY(20px) scale(0.95);
    transition: transform var(--duration-normal) var(--ease-out);
}

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

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--duration-fast) ease;
}

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

.modal-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.modal-icon-wrap {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    font-weight: 700;
}

.modal-icon-wrap.create {
    background: var(--gradient-purple);
    color: white;
}

.modal-icon-wrap.join {
    background: var(--gradient-green);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.modal-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Modal Form */
.modal-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.input-group label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.label-icon {
    font-size: 1rem;
}

.optional {
    color: var(--text-muted);
    font-weight: 400;
}

.input-group input {
    width: 100%;
    padding: var(--space-4);
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--duration-fast) ease;
}

.input-group input::placeholder {
    color: var(--text-dim);
}

.input-group input:hover {
    border-color: var(--border-default);
}

.input-group input:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px var(--accent-purple-dim);
}

.input-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

/* Collapsible Advanced Options */
.collapsible-section {
    border-top: 1px solid var(--border-subtle);
    padding-top: var(--space-4);
    margin-top: var(--space-2);
}

.collapsible-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-2) 0;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    transition: color var(--duration-fast) ease;
}

.collapsible-toggle:hover {
    color: var(--text-secondary);
}

.collapsible-toggle svg {
    transition: transform var(--duration-fast) ease;
}

.collapsible-toggle.open svg {
    transform: rotate(180deg);
}

.collapsible-content {
    display: none;
    padding-top: var(--space-4);
}

.collapsible-content.show {
    display: block;
    animation: slideDown var(--duration-fast) ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Submit Buttons */
.btn-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-4) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    color: white;
    cursor: pointer;
    transition: all var(--duration-fast) ease;
    margin-top: var(--space-2);
    position: relative;
    overflow: hidden;
}

.btn-create {
    background: var(--gradient-purple);
}

.btn-create:hover {
    box-shadow: var(--shadow-purple);
    transform: translateY(-2px);
}

.btn-join {
    background: var(--gradient-green);
}

.btn-join:hover {
    box-shadow: var(--shadow-green);
    transform: translateY(-2px);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-submit .btn-arrow {
    transition: transform var(--duration-fast) ease;
}

.btn-submit:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-submit.loading .btn-text,
.btn-submit.loading .btn-arrow {
    opacity: 0;
}

.btn-loader {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    opacity: 0;
    animation: none;
}

.btn-submit.loading .btn-loader {
    opacity: 1;
    animation: spin 0.8s linear infinite;
}

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

/* Invite Banner */
.invite-banner {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--accent-green-dim);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    font-size: 0.9rem;
    font-weight: 500;
}

.invite-icon {
    font-size: 1.25rem;
    animation: inviteWiggle 1s ease-in-out infinite;
}

@keyframes inviteWiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(12deg); }
    75% { transform: rotate(-12deg); }
}

/* ==========================================
   Sections
   ========================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--accent-purple-dim);
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-purple);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-3);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ==========================================
   How It Works
   ========================================== */
.how-it-works {
    padding: var(--space-20) 0;
}

.steps-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
}

.step-card {
    flex: 1;
    max-width: 280px;
    padding: var(--space-8) var(--space-6);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    text-align: center;
    position: relative;
    transition: all var(--duration-normal) var(--ease-out);
}

.step-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.step-number {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-purple);
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
}

.step-visual {
    margin-bottom: var(--space-5);
}

.step-icon-box {
    width: 64px;
    height: 64px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    font-size: 2rem;
}

.step-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.step-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.step-connector {
    color: var(--text-dim);
    flex-shrink: 0;
}

/* ==========================================
   Features Grid
   ========================================== */
.features-section {
    padding: var(--space-20) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.feature-card {
    padding: var(--space-6);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    transition: all var(--duration-normal) var(--ease-out);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: var(--space-4);
    display: block;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ==========================================
   Social Proof
   ========================================== */
.social-proof-section {
    padding: var(--space-16) 0;
}

.stats-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-12);
    padding: var(--space-8);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
}

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

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-subtle);
}

/* ==========================================
   Testimonials
   ========================================== */
.testimonials-section {
    padding: var(--space-20) 0;
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
}

.testimonial-card {
    padding: var(--space-6);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    transition: all var(--duration-normal) var(--ease-out);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

.testimonial-rating {
    color: var(--accent-yellow);
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: var(--space-3);
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-4);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.author-avatar {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-purple);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 600;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-size: 0.9rem;
    font-weight: 600;
}

.author-detail {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ==========================================
   Use Cases
   ========================================== */
.use-cases-section {
    padding: var(--space-12) 0;
    text-align: center;
}

.use-cases-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-8);
}

.use-case-pill {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all var(--duration-fast) ease;
}

.use-case-pill:hover {
    background: var(--bg-elevated);
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.use-case-icon {
    font-size: 1rem;
}

/* ==========================================
   FAQ
   ========================================== */
.faq-section {
    padding: var(--space-20) 0;
}

.faq-grid {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--duration-fast) ease;
}

.faq-item:hover,
.faq-item[open] {
    border-color: var(--border-hover);
}

.faq-item summary {
    padding: var(--space-5);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent-purple);
    transition: transform var(--duration-fast) ease;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item p {
    padding: 0 var(--space-5) var(--space-5);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================
   CTA Section
   ========================================== */
.cta-section {
    padding: var(--space-20) 0;
}

.cta-card {
    text-align: center;
    padding: var(--space-12);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200%;
    height: 200px;
    background: radial-gradient(ellipse at center, var(--accent-purple-dim) 0%, transparent 70%);
    pointer-events: none;
}

.cta-card h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 800;
    margin-bottom: var(--space-3);
    position: relative;
}

.cta-card > p {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    font-size: 1.1rem;
    position: relative;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-8);
    background: var(--gradient-purple);
    border: none;
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--duration-fast) ease;
    position: relative;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-purple);
}

.btn-cta svg {
    transition: transform var(--duration-fast) ease;
}

.btn-cta:hover svg {
    transform: translateX(4px);
}

.cta-note {
    display: block;
    margin-top: var(--space-4);
    font-size: 0.9rem;
    color: var(--text-muted);
    position: relative;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    margin-top: auto;
    padding: var(--space-12) 0 var(--space-6);
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-brand .logo-icon {
    display: inline;
    font-size: 1.25rem;
}

.footer-brand .logo-text {
    display: inline;
    font-size: 1.1rem;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.footer-links-col {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-col-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-1);
}

.footer-links-col a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--duration-fast) ease;
}

.footer-links-col a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
    color: var(--text-dim);
    font-size: 0.85rem;
}

.footer-bottom a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--duration-fast) ease;
}

.footer-bottom a:hover {
    color: var(--text-primary);
}

/* ==========================================
   Toast Notifications
   ========================================== */
.toast-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.toast {
    padding: var(--space-4) var(--space-6);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 0.9rem;
    box-shadow: var(--shadow-xl);
    animation: toastIn 0.3s var(--ease-out);
}

.toast.success { border-left: 3px solid var(--accent-green); }
.toast.error { border-left: 3px solid var(--accent-pink); }
.toast.info { border-left: 3px solid var(--accent-purple); }

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

/* ==========================================
   Responsive - HQ Mobile-First Design
   ========================================== */

/* Large tablets and small desktops */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-slider {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-container {
        padding: 0 var(--space-4);
    }
}

/* Tablets */
@media (max-width: 768px) {
    :root {
        --space-6: 20px;
        --space-8: 28px;
        --space-12: 40px;
        --space-16: 56px;
        --space-20: 64px;
    }

    .app-container {
        padding: 0 var(--space-3);
    }

    .navbar {
        flex-direction: row;
        justify-content: center;
        gap: var(--space-3);
        padding-top: var(--space-3);
        padding-bottom: var(--space-3);
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: var(--space-8) 0 var(--space-6);
    }

    .hero-actions {
        flex-direction: column;
        gap: var(--space-3);
    }

    .action-card {
        padding: var(--space-4);
        border-radius: var(--radius-lg);
    }

    .action-icon-wrap {
        width: 44px;
        height: 44px;
        font-size: 1.25rem;
    }

    .action-title {
        font-size: 1rem;
    }

    .action-subtitle {
        font-size: 0.8rem;
    }

    .trust-row {
        gap: var(--space-4);
        flex-wrap: wrap;
        justify-content: center;
    }

    .trust-item {
        font-size: 0.8rem;
    }

    /* Modal improvements for mobile */
    .modal-overlay {
        padding: var(--space-3);
        align-items: flex-start;
        padding-top: 10vh;
    }

    .modal-content {
        padding: var(--space-5);
        border-radius: var(--radius-xl);
        max-height: 85vh;
        overflow-y: auto;
    }

    .modal-header {
        margin-bottom: var(--space-4);
    }

    .modal-title {
        font-size: 1.25rem;
    }

    /* Prevent iOS zoom on input focus */
    .input-group input {
        font-size: 16px;
        padding: var(--space-3);
    }

    .input-row {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .btn-submit {
        padding: var(--space-4);
        font-size: 1rem;
        min-height: 52px;
    }

    /* Steps section */
    .steps-container {
        flex-direction: column;
        gap: var(--space-4);
    }

    .step-connector {
        transform: rotate(90deg);
        margin: calc(-1 * var(--space-2)) 0;
    }

    .step-card {
        max-width: 100%;
        padding: var(--space-6) var(--space-4);
    }

    .step-icon-box {
        width: 56px;
        height: 56px;
        font-size: 1.75rem;
    }

    /* Features grid */
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .feature-card {
        padding: var(--space-5);
    }

    .feature-icon {
        font-size: 1.75rem;
    }

    /* Stats */
    .stats-row {
        flex-direction: column;
        gap: var(--space-5);
        padding: var(--space-6);
    }

    .stat-divider {
        width: 60px;
        height: 1px;
    }

    .stat-value {
        font-size: 2.25rem;
    }

    /* Testimonials */
    .testimonials-slider {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .testimonial-card {
        padding: var(--space-4);
    }

    .testimonial-text {
        font-size: 0.9rem;
    }

    /* Use cases */
    .use-cases-grid {
        gap: var(--space-2);
    }

    .use-case-pill {
        padding: var(--space-2) var(--space-3);
        font-size: 0.8rem;
    }

    /* FAQ */
    .faq-item summary {
        padding: var(--space-4);
        font-size: 0.95rem;
    }

    .faq-item p {
        padding: 0 var(--space-4) var(--space-4);
        font-size: 0.9rem;
    }

    /* CTA */
    .cta-card {
        padding: var(--space-6);
    }

    .cta-card h2 {
        font-size: 1.5rem;
    }

    .btn-cta {
        width: 100%;
        justify-content: center;
        padding: var(--space-4) var(--space-6);
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: var(--space-6);
    }

    .footer-links-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
        width: 100%;
    }

    .footer-links-col {
        align-items: center;
    }

    .footer-bottom p {
        font-size: 0.8rem;
    }

    /* Live badge */
    .live-badge {
        font-size: 0.8rem;
        padding: var(--space-2) var(--space-3);
    }

    /* Background orbs - reduce for performance */
    .gradient-orb {
        opacity: 0.25;
    }

    .orb-1 { width: 400px; height: 400px; }
    .orb-2 { width: 350px; height: 350px; }
    .orb-3 { width: 280px; height: 280px; }
}

/* Mobile phones */
@media (max-width: 480px) {
    :root {
        --space-6: 16px;
        --space-8: 24px;
        --space-12: 32px;
        --space-16: 48px;
        --space-20: 56px;
    }

    .app-container {
        padding: 0 var(--space-3);
    }

    .title-line {
        font-size: 2rem;
    }

    .hero-tagline {
        font-size: 0.95rem;
        padding: 0 var(--space-2);
    }

    .hero-title {
        margin-bottom: var(--space-4);
    }

    .live-badge {
        font-size: 0.75rem;
        margin-bottom: var(--space-5);
    }

    /* Action cards */
    .action-card {
        padding: var(--space-3);
        gap: var(--space-3);
    }

    .action-icon-wrap {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
        border-radius: var(--radius-md);
    }

    .action-content {
        gap: 1px;
    }

    .action-title {
        font-size: 0.95rem;
    }

    .action-subtitle {
        font-size: 0.75rem;
    }

    .action-arrow svg {
        width: 20px;
        height: 20px;
    }

    /* Trust items */
    .trust-row {
        gap: var(--space-3);
    }

    .trust-item {
        font-size: 0.75rem;
        gap: var(--space-1);
    }

    .trust-item svg {
        width: 14px;
        height: 14px;
    }

    /* Modal */
    .modal-overlay {
        padding: var(--space-2);
        padding-top: 5vh;
    }

    .modal-content {
        padding: var(--space-4);
        border-radius: var(--radius-lg);
    }

    .modal-close {
        top: var(--space-3);
        right: var(--space-3);
        width: 32px;
        height: 32px;
    }

    .modal-header {
        gap: var(--space-3);
    }

    .modal-icon-wrap {
        width: 42px;
        height: 42px;
        font-size: 1.25rem;
    }

    .modal-title {
        font-size: 1.15rem;
    }

    .modal-subtitle {
        font-size: 0.8rem;
    }

    .input-group label {
        font-size: 0.85rem;
    }

    .input-hint {
        font-size: 0.75rem;
    }

    /* Section headers */
    .section-header {
        margin-bottom: var(--space-8);
    }

    .section-badge {
        font-size: 0.7rem;
        padding: var(--space-1) var(--space-2);
    }

    .section-title {
        font-size: 1.5rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
    }

    /* Steps */
    .step-card {
        padding: var(--space-5) var(--space-4);
    }

    .step-number {
        width: 24px;
        height: 24px;
        font-size: 0.75rem;
        top: -12px;
    }

    .step-icon-box {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }

    .step-card h3 {
        font-size: 1rem;
    }

    .step-card p {
        font-size: 0.85rem;
    }

    .step-connector svg {
        width: 32px;
        height: 32px;
    }

    /* Features */
    .feature-card {
        padding: var(--space-4);
    }

    .feature-icon {
        font-size: 1.5rem;
        margin-bottom: var(--space-3);
    }

    .feature-card h3 {
        font-size: 1rem;
    }

    .feature-card p {
        font-size: 0.85rem;
    }

    /* Stats */
    .stats-row {
        padding: var(--space-5);
        gap: var(--space-4);
    }

    .stat-value {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    /* Testimonials */
    .testimonial-card {
        padding: var(--space-4);
    }

    .testimonial-rating {
        font-size: 0.8rem;
    }

    .testimonial-text {
        font-size: 0.85rem;
        margin-bottom: var(--space-3);
    }

    .author-avatar {
        width: 32px;
        height: 32px;
        font-size: 0.7rem;
    }

    .author-name {
        font-size: 0.85rem;
    }

    .author-detail {
        font-size: 0.7rem;
    }

    /* Use cases */
    .use-case-pill {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .use-case-icon {
        font-size: 0.9rem;
    }

    /* FAQ */
    .faq-item summary {
        padding: var(--space-3);
        font-size: 0.9rem;
    }

    .faq-item summary::after {
        font-size: 1.25rem;
    }

    .faq-item p {
        padding: 0 var(--space-3) var(--space-3);
        font-size: 0.85rem;
    }

    /* CTA */
    .cta-card {
        padding: var(--space-5);
    }

    .cta-card h2 {
        font-size: 1.35rem;
    }

    .cta-card > p {
        font-size: 0.95rem;
    }

    .btn-cta {
        font-size: 1rem;
        padding: var(--space-4);
    }

    .cta-note {
        font-size: 0.8rem;
    }

    /* Footer */
    .footer {
        padding: var(--space-8) 0 var(--space-4);
    }

    .footer-links-grid {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }

    .footer-links-col {
        align-items: center;
    }

    .footer-col-title {
        font-size: 0.75rem;
    }

    .footer-links-col a {
        font-size: 0.85rem;
    }

    .footer-brand .logo-text {
        font-size: 1rem;
    }

    .footer-tagline {
        font-size: 0.8rem;
    }

    /* Background - minimize for performance */
    .gradient-orb {
        opacity: 0.2;
        filter: blur(80px);
    }

    .orb-1 { width: 300px; height: 300px; }
    .orb-2 { width: 250px; height: 250px; }
    .orb-3 { display: none; }
}

/* Extra small phones (iPhone SE, etc.) */
@media (max-width: 360px) {
    .title-line {
        font-size: 1.75rem;
    }

    .hero-tagline {
        font-size: 0.9rem;
    }

    .action-card {
        padding: var(--space-2) var(--space-3);
    }

    .action-title {
        font-size: 0.9rem;
    }

    .modal-content {
        padding: var(--space-3);
    }

    .step-card {
        padding: var(--space-4) var(--space-3);
    }

    .testimonial-text {
        font-size: 0.8rem;
    }
}

/* Landscape phones */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        padding: var(--space-6) 0 var(--space-4);
    }

    .hero-actions {
        flex-direction: row;
    }

    .modal-overlay {
        padding-top: 5vh;
    }

    .modal-content {
        max-height: 90vh;
    }
}

/* ==========================================
   Reduced Motion
   ========================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .gradient-orb {
        animation: none;
    }
}