/* ============================================
   POLYTRADE LANDING PAGE STYLES
   Modern dark theme with glassmorphism
   ============================================ */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    /* Colors */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #1c2128;
    --bg-card: rgba(22, 27, 34, 0.8);
    --bg-glass: rgba(22, 27, 34, 0.6);

    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;

    --accent-blue: #58a6ff;
    --accent-purple: #a371f7;
    --accent-green: #3fb950;
    --accent-red: #f85149;
    --accent-yellow: #d29922;

    --border-color: rgba(48, 54, 61, 0.8);
    --border-glass: rgba(255, 255, 255, 0.1);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #58a6ff 0%, #a371f7 100%);
    --gradient-secondary: linear-gradient(135deg, #a371f7 0%, #3fb950 100%);
    --gradient-glow: linear-gradient(135deg, rgba(88, 166, 255, 0.3) 0%, rgba(163, 113, 247, 0.3) 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
    --shadow-glow-blue: 0 0 40px rgba(88, 166, 255, 0.3);
    --shadow-glow-purple: 0 0 40px rgba(163, 113, 247, 0.3);

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

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

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-purple);
}

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

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    color: var(--text-secondary);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

section {
    padding: var(--space-4xl) 0;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    font-family: var(--font-family);
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
    color: white;
}

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

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

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

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

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

.btn-glow {
    animation: btn-pulse 2s ease-in-out infinite;
}

@keyframes btn-pulse {
    0%, 100% {
        box-shadow: var(--shadow-md);
    }
    50% {
        box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
    }
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 17, 23, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(13, 17, 23, 0.95);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-logo i {
    color: var(--accent-blue);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-link-docs {
    padding: 6px 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    padding: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 120px;
    padding-bottom: var(--space-4xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 60%;
    background: radial-gradient(ellipse at center top, rgba(88, 166, 255, 0.15) 0%, rgba(163, 113, 247, 0.1) 30%, transparent 70%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(88, 166, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(88, 166, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: linear-gradient(to bottom, black 0%, transparent 70%);
    -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 70%);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
}

.badge-glow {
    color: var(--accent-blue);
    border-color: rgba(88, 166, 255, 0.3);
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.2);
}

.hero-title {
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    font-size: 1.25rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-2xl);
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Dashboard Preview */
.hero-image {
    max-width: 1000px;
    margin: var(--space-3xl) auto 0;
    padding: 0 var(--space-lg);
}

.dashboard-preview {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg), 0 0 60px rgba(88, 166, 255, 0.1);
}

.preview-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.preview-dots {
    display: flex;
    gap: 6px;
}

.preview-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg-primary);
}

.preview-dots span:nth-child(1) { background: #ff5f56; }
.preview-dots span:nth-child(2) { background: #ffbd2e; }
.preview-dots span:nth-child(3) { background: #27c93f; }

.preview-title {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.preview-content {
    display: flex;
    height: 300px;
}

.preview-sidebar {
    width: 60px;
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border-right: 1px solid var(--border-color);
}

.preview-menu-item {
    width: 100%;
    height: 36px;
    margin-bottom: var(--space-sm);
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
}

.preview-menu-item.active {
    background: var(--accent-blue);
}

.preview-main {
    flex: 1;
    padding: var(--space-lg);
}

.preview-chart {
    height: 60%;
    margin-bottom: var(--space-md);
    background: linear-gradient(90deg,
        var(--bg-primary) 0%,
        rgba(88, 166, 255, 0.1) 25%,
        rgba(63, 185, 80, 0.1) 50%,
        rgba(163, 113, 247, 0.1) 75%,
        var(--bg-primary) 100%
    );
    border-radius: var(--radius-md);
    animation: chart-shimmer 3s ease-in-out infinite;
}

@keyframes chart-shimmer {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.preview-cards {
    display: flex;
    gap: var(--space-md);
    height: calc(40% - var(--space-md));
}

.preview-card {
    flex: 1;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
}

.preview-card.green { border-left: 3px solid var(--accent-green); }
.preview-card.blue { border-left: 3px solid var(--accent-blue); }
.preview-card.purple { border-left: 3px solid var(--accent-purple); }

/* ============================================
   TRUST SECTION
   ============================================ */
.trust-section {
    padding: var(--space-2xl) 0;
    border-bottom: 1px solid var(--border-color);
}

.trust-text {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.trust-logos {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-2xl);
}

.trust-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-muted);
    opacity: 0.6;
    transition: opacity var(--transition-base);
}

.trust-logo:hover {
    opacity: 1;
}

.trust-logo i {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* ============================================
   SECTION HEADER
   ============================================ */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-blue);
    background: rgba(88, 166, 255, 0.1);
    border-radius: var(--radius-full);
}

.section-title {
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
    background: var(--bg-secondary);
}

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

.feature-card {
    padding: var(--space-xl);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    transition: all var(--transition-base);
}

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

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin-bottom: var(--space-lg);
    font-size: 1.5rem;
    color: var(--accent-blue);
    background: rgba(88, 166, 255, 0.1);
    border-radius: var(--radius-md);
}

.feature-icon.purple {
    color: var(--accent-purple);
    background: rgba(163, 113, 247, 0.1);
}

.feature-icon.green {
    color: var(--accent-green);
    background: rgba(63, 185, 80, 0.1);
}

.feature-card h3 {
    margin-bottom: var(--space-sm);
}

.feature-card p {
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */
.how-it-works {
    position: relative;
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-3xl);
}

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

.step.reverse {
    flex-direction: row-reverse;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    background: var(--gradient-primary);
    border-radius: 50%;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    margin-bottom: var(--space-sm);
    font-size: 1.5rem;
}

.step-content p {
    margin-bottom: var(--space-lg);
    font-size: 1rem;
}

.step-features {
    list-style: none;
}

.step-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
}

.step-features i {
    color: var(--accent-green);
}

.step-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.step-icon-large {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 180px;
    height: 180px;
    font-size: 4rem;
    color: var(--accent-blue);
    background: rgba(88, 166, 255, 0.1);
    border: 2px solid rgba(88, 166, 255, 0.2);
    border-radius: 50%;
    box-shadow: var(--shadow-glow-blue);
}

.step-icon-large.purple {
    color: var(--accent-purple);
    background: rgba(163, 113, 247, 0.1);
    border-color: rgba(163, 113, 247, 0.2);
    box-shadow: var(--shadow-glow-purple);
}

.step-icon-large.green {
    color: var(--accent-green);
    background: rgba(63, 185, 80, 0.1);
    border-color: rgba(63, 185, 80, 0.2);
    box-shadow: 0 0 40px rgba(63, 185, 80, 0.3);
}

/* ============================================
   PRICING SECTION
   ============================================ */
.pricing {
    background: var(--bg-secondary);
}

.pricing-hero {
    padding-top: 140px;
    padding-bottom: var(--space-2xl);
    background: var(--bg-secondary);
}

.pricing-cards-section {
    padding-top: 0;
    background: var(--bg-secondary);
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.toggle-label[data-period="monthly"].active,
.toggle-label[data-period="annual"].active {
    color: var(--text-primary);
    font-weight: 600;
}

.save-badge {
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-green);
    background: rgba(63, 185, 80, 0.15);
    border-radius: var(--radius-full);
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 56px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: var(--accent-blue);
    border-radius: 50%;
    transition: all var(--transition-base);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(28px);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    align-items: start;
}

.pricing-card {
    position: relative;
    padding: var(--space-xl);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    transition: all var(--transition-base);
}

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

.pricing-card.popular {
    border-color: var(--accent-blue);
    box-shadow: 0 0 40px rgba(88, 166, 255, 0.15);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.pricing-header {
    margin-bottom: var(--space-lg);
}

.pricing-name {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.pricing-description {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.pricing-price {
    margin-bottom: var(--space-lg);
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price-period {
    font-size: 1rem;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--space-xl);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li i {
    font-size: 0.875rem;
}

.pricing-features li .fa-check {
    color: var(--accent-green);
}

.pricing-features li .fa-times {
    color: var(--text-muted);
}

.pricing-features li.disabled {
    color: var(--text-muted);
}

.pricing-footer {
    text-align: center;
    margin-top: var(--space-2xl);
}

.pricing-footer p {
    margin-bottom: var(--space-md);
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
}

.link-arrow:hover i {
    transform: translateX(4px);
}

.link-arrow i {
    transition: transform var(--transition-fast);
}

/* ============================================
   COMPARISON TABLE
   ============================================ */
.comparison-section {
    padding-top: var(--space-3xl);
}

.comparison-table-wrapper {
    overflow-x: auto;
    margin: 0 calc(-1 * var(--space-lg));
    padding: 0 var(--space-lg);
}

.comparison-table {
    width: 100%;
    min-width: 800px;
    border-collapse: collapse;
    border-spacing: 0;
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-md) var(--space-lg);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    text-align: left;
}

.comparison-table .feature-column {
    width: 30%;
}

.comparison-table .popular-column {
    background: rgba(88, 166, 255, 0.05);
}

.comparison-table thead th.popular-column {
    background: rgba(88, 166, 255, 0.1);
    color: var(--accent-blue);
}

.comparison-table .category-row {
    background: var(--bg-primary);
}

.comparison-table .category-row td {
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

.comparison-table .category-row i {
    margin-right: var(--space-sm);
    color: var(--accent-blue);
}

.comparison-table tbody td {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.comparison-table .text-green {
    color: var(--accent-green);
}

.comparison-table .text-red {
    color: var(--text-muted);
}

.comparison-table tfoot td {
    padding-top: var(--space-lg);
    border-bottom: none;
}

/* ============================================
   PAYMENT METHODS
   ============================================ */
.payment-methods {
    background: var(--bg-primary);
}

.payment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.payment-card {
    padding: var(--space-xl);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    backdrop-filter: blur(20px);
}

.payment-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    margin-bottom: var(--space-lg);
    font-size: 2rem;
    color: #635bff;
    background: rgba(99, 91, 255, 0.1);
    border-radius: var(--radius-lg);
}

.payment-icon.crypto {
    color: #f7931a;
    background: rgba(247, 147, 26, 0.1);
}

.payment-card h3 {
    margin-bottom: var(--space-sm);
}

.payment-card p {
    margin-bottom: var(--space-lg);
    font-size: 0.9375rem;
}

.payment-logos {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    font-size: 1.75rem;
    color: var(--text-muted);
}

.crypto-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials {
    background: var(--bg-primary);
}

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

.testimonial-card {
    padding: var(--space-xl);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    transition: all var(--transition-base);
}

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

.testimonial-rating {
    margin-bottom: var(--space-md);
    color: var(--accent-yellow);
}

.testimonial-rating i {
    margin-right: 2px;
}

.testimonial-text {
    margin-bottom: var(--space-lg);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
}

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

.author-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
    color: var(--text-muted);
    background: var(--bg-primary);
    border-radius: 50%;
}

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

.author-name {
    font-weight: 600;
    color: var(--text-primary);
}

.author-title {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq {
    background: var(--bg-secondary);
}

.billing-faq {
    background: var(--bg-secondary);
    padding-top: 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--space-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--accent-blue);
}

.faq-item.active {
    border-color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.1);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-lg);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    color: var(--text-primary);
    background: var(--bg-glass);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-tertiary);
}

.faq-question i {
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
    color: var(--accent-blue);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--space-lg) var(--space-lg);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
    position: relative;
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.1) 0%, rgba(163, 113, 247, 0.1) 100%);
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2358a6ff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: var(--space-md);
    font-size: 2.5rem;
}

.cta-content > p {
    margin-bottom: var(--space-xl);
    font-size: 1.125rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.cta-note {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-logo i {
    color: var(--accent-blue);
}

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

.footer-brand p {
    margin-bottom: var(--space-lg);
    font-size: 0.9375rem;
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.125rem;
    color: var(--text-muted);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    color: var(--accent-blue);
    transform: translateY(-2px);
}

.footer-links h4 {
    margin-bottom: var(--space-lg);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.875rem;
}

.footer-badges {
    display: flex;
    gap: var(--space-lg);
}

.footer-badges span {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-badges i {
    color: var(--accent-green);
}

/* ============================================
   ANIMATIONS
   ============================================ */
.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* Scroll Animation */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

[data-animate].animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    :root {
        --space-4xl: 64px;
        --space-3xl: 48px;
    }

    .nav-links,
    .nav-actions {
        display: none;
    }

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

    /* Mobile Menu */
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        padding: var(--space-lg);
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
    }

    .nav-actions.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: calc(100% + 200px);
        left: 0;
        right: 0;
        padding: var(--space-lg);
        padding-top: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .step {
        flex-direction: column;
        text-align: center;
    }

    .step.reverse {
        flex-direction: column;
    }

    .step-features {
        display: inline-block;
        text-align: left;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .payment-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }

    .hero-stats {
        gap: var(--space-lg);
    }

    .preview-content {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-buttons .btn {
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-badges {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .step-icon-large {
        width: 120px;
        height: 120px;
        font-size: 2.5rem;
    }

    .comparison-table {
        font-size: 0.875rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: var(--space-sm);
    }
}

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

    html {
        scroll-behavior: auto;
    }
}