/* ===================================
   ShieldLine - Main Stylesheet
   A bold, modern privacy-first aesthetic
   =================================== */

/* CSS Variables */
:root {
    /* Colors - Dark theme with electric accents */
    --color-bg: #0a0a0f;
    --color-bg-elevated: #12121a;
    --color-bg-card: #1a1a24;
    --color-surface: #22222e;
    
    --color-text: #ffffff;
    --color-text-secondary: #9ca3af;
    --color-text-muted: #6b7280;
    
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;
    
    --color-accent: #22d3ee;
    --color-accent-secondary: #a78bfa;
    
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    
    /* Typography */
    --font-display: 'Syne', sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p, li, dd, figcaption {
    color: var(--color-text-secondary);
    font-family: system-ui, -apple-system, sans-serif;
}

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

strong {
    color: var(--color-text);
    font-weight: 600;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: var(--color-bg-card);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    width: auto;
}

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

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-4xl) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-gradient {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 150%;
    background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.15) 0%, transparent 50%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--color-primary-light);
    margin-bottom: var(--space-lg);
}

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

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

.hero-description {
    font-size: 1.125rem;
    max-width: 540px;
    margin-bottom: var(--space-2xl);
}

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

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

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

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

/* Phone Mockup */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-illustration {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 1000px;
}

.hero-phone-img {
    position: relative;
    z-index: 2;
    width: 90vw;
    max-width: 1000px;
    height: auto;
    object-fit: contain;
}

.hero-bg-img {
    position: absolute;
    z-index: 1;
    width: 90vw;
    max-width: 1000px;
    height: auto;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.9;
    pointer-events: none;
}

.phone-mockup {
    position: relative;
}

.phone-frame {
    position: relative;
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #1a1a24, #0a0a0f);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 25px 50px rgba(0, 0, 0, 0.5),
        0 0 100px rgba(99, 102, 241, 0.2);
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: #0a0a0f;
    border-radius: 20px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--color-bg);
    border-radius: 30px;
    overflow: hidden;
    padding: var(--space-xl);
    padding-top: var(--space-3xl);
}

.app-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--space-lg);
    font-weight: 600;
}

.shield-icon {
    font-size: 1.25rem;
}

.message-preview {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.message {
    max-width: 80%;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    animation: messageSlide 0.5s ease forwards;
    opacity: 0;
}

.message:nth-child(1) { animation-delay: 0.5s; }
.message:nth-child(2) { animation-delay: 1s; }
.message:nth-child(3) { animation-delay: 1.5s; }

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

.message.incoming {
    background: var(--color-surface);
    align-self: flex-start;
    border-bottom-left-radius: var(--radius-sm);
}

.message.outgoing {
    background: var(--color-primary);
    align-self: flex-end;
    border-bottom-right-radius: var(--radius-sm);
    color: white;
}

.message.encrypted {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
}

/* Sections */
.section {
    padding: var(--space-4xl) 0;
}

.section-dark {
    background: var(--color-bg-elevated);
}

.section-header {
    margin-bottom: var(--space-3xl);
}

.section-header.centered {
    text-align: center;
}

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

.section-description {
    font-size: 1.125rem;
    max-width: 600px;
}

.section-header.centered .section-description {
    margin: 0 auto;
}

/* Info Cards */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.info-card {
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.info-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-4px);
}

.info-card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

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

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.feature-icon svg {
    stroke: white;
}

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

/* Pricing Cards */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-xl);
    max-width: 800px;
    margin: 0 auto;
}

/* 4-tier pricing layout */
.pricing-cards-5 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    max-width: 1200px;
}

.pricing-cards-5 .pricing-card {
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    min-height: 420px;
}

.pricing-cards-5 .pricing-features {
    flex: 1;
}

.pricing-cards-5 .btn-block {
    margin-top: auto;
    padding: var(--space-md) var(--space-lg);
    font-size: 0.9rem;
}

.pricing-cards-5 .pricing-amount .price {
    font-size: 2rem;
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

.pricing-card {
    position: relative;
    padding: var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

.pricing-card.featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.pricing-badge {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-align: center;
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.pricing-header h3 {
    margin-bottom: var(--space-md);
}

.pricing-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-xs);
}

.pricing-amount .price {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-display);
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.pricing-amount .currency {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary-light);
}

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

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

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    color: var(--color-text-secondary);
}

.pricing-features svg {
    flex-shrink: 0;
    stroke: var(--color-success);
}

.pricing-note {
    margin-top: var(--space-md);
    font-size: 0.8rem;
    text-align: center;
    color: var(--color-text-muted);
}

/* Coming Soon Cards */
.pricing-card.coming-soon {
    opacity: 0.6;
}

.pricing-card.coming-soon:hover {
    opacity: 0.7;
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: none;
}

.pricing-badge.badge-coming-soon {
    background: var(--color-surface);
    color: var(--color-text-muted);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn:disabled:hover {
    transform: none;
}

/* Download Buttons */
.download-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.download-buttons .btn {
    min-width: 180px;
}

.download-buttons .btn svg {
    flex-shrink: 0;
}

/* FAQ */
.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) 0;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}

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

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
}

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

.faq-item p {
    padding-bottom: var(--space-lg);
    font-size: 0.95rem;
}

/* Team Grid */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-xl);
}

.team-card {
    text-align: center;
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.team-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
}

.team-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 1.5rem;
    font-weight: 700;
}

.team-card h3 {
    margin-bottom: var(--space-xs);
    font-size: 1.125rem;
}

.team-role {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-primary-light);
    margin-bottom: var(--space-md);
}

.team-bio {
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

.team-link {
    font-size: 0.875rem;
    color: var(--color-primary-light);
}

.team-link:hover {
    color: var(--color-accent);
}

/* Investors */
.investors-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2xl);
}

.investor-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg) var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.investor-logo:hover {
    border-color: rgba(99, 102, 241, 0.3);
    color: var(--color-text);
}

/* CTA Section */
.cta-section {
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.cta-section::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='%23ffffff' fill-opacity='0.05'%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;
    padding: var(--space-2xl) 0;
}

.cta-content h2 {
    color: white;
    margin-bottom: var(--space-md);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    margin-bottom: var(--space-2xl);
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: white;
    color: var(--color-primary);
    box-shadow: none;
}

.cta-section .btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
}

.cta-section .btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Email Signup Form */
.signup-form {
    max-width: 500px;
    margin: 0 auto var(--space-xl);
}

.signup-input-group {
    display: flex;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-xs);
    transition: all var(--transition-base);
}

.signup-input-group:focus-within {
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.15);
}

.signup-input-group input {
    flex: 1;
    background: transparent;
    border: none;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-display);
    font-size: 1rem;
    color: white;
    outline: none;
}

.signup-input-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.signup-input-group .btn {
    flex-shrink: 0;
    background: white;
    color: var(--color-primary);
    box-shadow: none;
    padding: var(--space-md) var(--space-xl);
}

.signup-input-group .btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: none;
}

.signup-message {
    margin-top: var(--space-md);
    font-size: 0.9rem;
    text-align: center;
    min-height: 24px;
}

.signup-message.success {
    color: #34d399;
}

.signup-message.error {
    color: #fca5a5;
}

/* Loading spinner */
.spinner {
    animation: spin 1s linear infinite;
}

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

/* CTA Divider */
.cta-divider {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.cta-divider::before,
.cta-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
}

/* Footer */
.footer {
    background: var(--color-bg);
    padding: var(--space-4xl) 0 var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-4xl);
    margin-bottom: var(--space-3xl);
}

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

.footer-logo {
    height: 40px;
    margin-bottom: var(--space-md);
}

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

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

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

.footer-column a {
    display: block;
    padding: var(--space-xs) 0;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

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

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

.footer-social a:hover {
    background: var(--color-primary);
    color: white;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .footer-brand {
        max-width: 100%;
        text-align: center;
    }
}

@media (max-width: 1100px) {
    .pricing-cards-5 {
        grid-template-columns: repeat(2, 1fr);
        max-width: 700px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-bg-elevated);
        padding: var(--space-lg);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-actions .btn {
        display: none;
    }

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

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

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

    .pricing-cards {
        grid-template-columns: 1fr;
    }

    .pricing-cards-5 {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .btn-large {
        width: 100%;
    }

    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .signup-input-group {
        flex-direction: column;
        padding: var(--space-sm);
    }

    .signup-input-group input {
        text-align: center;
    }

    .signup-input-group .btn {
        width: 100%;
    }
}