/* ============================================
   ContentTrace Landing Page
   A distinctive, modern design
   ============================================ */

:root {
    /* Colors - Deep teal/cyan accent on dark */
    --color-bg: #0a0f14;
    --color-bg-elevated: #111921;
    --color-bg-card: #151d27;
    --color-border: #1e2a38;
    --color-border-light: #2a3a4d;
    
    --color-text: #e8edf3;
    --color-text-muted: #8899a8;
    --color-text-subtle: #5a6b7a;
    
    --color-primary: #00d4aa;
    --color-primary-light: #33e0bc;
    --color-primary-dark: #00a888;
    --color-primary-glow: rgba(0, 212, 170, 0.15);
    
    --color-accent: #7c5cff;
    --color-danger: #ff5c5c;
    --color-warning: #ffc107;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00d4aa 0%, #00a888 50%, #7c5cff 100%);
    --gradient-text: linear-gradient(135deg, #00d4aa, #7c5cff);
    --gradient-hero: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 170, 0.12) 0%, transparent 60%);
    
    /* Typography */
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 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: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

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

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

/* ============================================
   Navigation
   ============================================ */

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

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-mark {
    width: 20px;
    height: 20px;
    display: block;
}

.footer .logo-mark {
    width: 24px;
    height: 24px;
}

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

.nav-links a {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

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

/* ============================================
   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-sans);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-sm {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.875rem;
}

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

.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-bg);
    box-shadow: 0 4px 20px var(--color-primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--color-primary-glow);
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

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

.btn-white {
    background: white;
    color: var(--color-bg);
}

.btn-white:hover {
    background: var(--color-text);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
}

.btn-outline-white:hover {
    background: rgba(255,255,255,0.1);
    border-color: white;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    padding: 160px 0 var(--space-4xl);
    overflow: hidden;
}

.hero .container {
    text-align: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-xl);
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
}

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

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

.hero-compare {
    margin-top: 20px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-compare a {
    color: var(--color-primary);
    font-size: 0.9rem;
    text-decoration: underline;
}

.hero-compare span {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

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

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

/* Code Window Visual */
.hero-visual {
    margin-top: var(--space-3xl);
    display: flex;
    justify-content: center;
}

.code-window {
    max-width: 600px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

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

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

.code-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-border-light);
}

.code-dots span:nth-child(1) { background: #ff5f57; }
.code-dots span:nth-child(2) { background: #febc2e; }
.code-dots span:nth-child(3) { background: #28c840; }

.code-title {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.code-content {
    padding: var(--space-xl);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-content code {
    display: block;
}

.code-tag { color: var(--color-text-muted); }
.code-comment { color: var(--color-text-subtle); }
.code-token { 
    color: var(--color-primary); 
    background: var(--color-primary-glow);
    display: block;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    margin: var(--space-sm) 0;
}

/* Dashboard Preview */
.dashboard-preview {
    padding: var(--space-lg) !important;
    font-family: var(--font-sans) !important;
}

.preview-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    margin-bottom: var(--space-sm);
    font-size: 0.85rem;
}

.preview-row:last-child {
    margin-bottom: 0;
}

.preview-status {
    font-size: 1rem;
}

.preview-status.ok { color: var(--color-primary); }
.preview-status.warning { color: var(--color-warning); }

.preview-title {
    flex: 1;
    color: var(--color-text);
    font-weight: 500;
}

.preview-action {
    color: var(--color-text-subtle);
    font-size: 0.8rem;
}

.preview-action.alert {
    color: var(--color-warning);
    font-weight: 600;
}

.visual-badge {
    color: var(--color-primary);
    font-weight: 600;
}

/* ============================================
   Section Styles
   ============================================ */

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

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

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-primary-glow);
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

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

.text-danger {
    color: var(--color-danger);
}

/* ============================================
   Problem Section
   ============================================ */

.problem {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.problem-card {
    padding: var(--space-2xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
}

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

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.problem-card p {
    color: var(--color-text-muted);
}

/* ============================================
   Solution Section
   ============================================ */

.solution-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
}

.step {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--space-2xl);
    align-items: center;
    padding: var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition-base);
}

.step:hover {
    border-color: var(--color-primary);
}

.step-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-border-light);
    font-family: var(--font-mono);
}

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

.step-content p {
    color: var(--color-text-muted);
}

.step-visual {
    padding: var(--space-lg);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-primary);
}

.log-entry {
    display: flex;
    justify-content: space-between;
    gap: var(--space-xl);
}

.log-ip { color: var(--color-text); }
.log-time { color: var(--color-text-subtle); }

.duplicate-alert {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-warning);
}

.dmca-badge {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text);
}

/* ============================================
   Features Section
   ============================================ */

.features {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    padding: var(--space-2xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

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

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

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

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ============================================
   Pricing Section
   ============================================ */

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    align-items: start;
}

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

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.pricing-card.popular {
    border-color: var(--color-primary);
    background: linear-gradient(180deg, rgba(0, 212, 170, 0.08) 0%, var(--color-bg-card) 100%);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-xs) var(--space-lg);
    background: var(--gradient-primary);
    color: var(--color-bg);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 100px;
}

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

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-sm);
}

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

.price-period {
    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;
    font-size: 0.95rem;
}

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

.check {
    color: var(--color-primary);
    font-weight: 700;
}

.x {
    color: var(--color-text-subtle);
}

/* Disabled buttons */
.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.price-note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--space-sm);
}

.btn-note {
    font-size: 0.75rem;
    color: var(--color-text-subtle);
    margin-top: var(--space-sm);
    text-align: center;
}

.pricing-guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-3xl);
    padding: var(--space-lg) var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
}

.pricing-guarantee span {
    font-size: 1.5rem;
}

.pricing-guarantee p {
    color: var(--color-text-muted);
    margin: 0;
}

.pricing-guarantee strong {
    color: var(--color-text);
}

/* ============================================
   Trust Section
   ============================================ */

.trust {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

.trust-content {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    flex-wrap: wrap;
}

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

.trust-icon {
    font-size: 1.5rem;
}

.trust-item strong {
    display: block;
    font-size: 0.95rem;
    color: var(--color-text);
}

.trust-item p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* ============================================
   Notify Section
   ============================================ */

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

.notify-box {
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1) 0%, rgba(0, 212, 170, 0.02) 100%);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl);
    text-align: center;
}

.notify-content h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--space-md);
}

.notify-content > p {
    color: var(--color-text-muted);
    max-width: 500px;
    margin: 0 auto var(--space-xl);
}

.notify-form {
    display: flex;
    gap: var(--space-md);
    max-width: 450px;
    margin: 0 auto;
}

.notify-input {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 1rem;
}

.notify-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.notify-input::placeholder {
    color: var(--color-text-subtle);
}

.notify-note {
    font-size: 0.8rem;
    color: var(--color-text-subtle);
    margin-top: var(--space-md);
}

@media (max-width: 600px) {
    .notify-form {
        flex-direction: column;
    }
}

/* ============================================
   FAQ Section
   ============================================ */

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.faq-item {
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.faq-item p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ============================================
   CTA Section
   ============================================ */

.cta {
    background: var(--gradient-primary);
    padding: var(--space-4xl) 0;
}

.cta-content {
    text-align: center;
}

.cta h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-bg);
    margin-bottom: var(--space-md);
}

.cta p {
    color: rgba(10, 15, 20, 0.7);
    font-size: 1.125rem;
    margin-bottom: var(--space-2xl);
}

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

/* ============================================
   Footer
   ============================================ */

.footer {
    padding: var(--space-4xl) 0 var(--space-2xl);
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
}

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

.footer-brand p {
    color: var(--color-text-muted);
    margin-top: var(--space-md);
}

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

.footer-links a {
    display: block;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
    font-size: 0.95rem;
}

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

.footer-bottom {
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-text-subtle);
    font-size: 0.875rem;
}

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

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 900px) {
    .nav-links {
        display: none;
    }
    
    .hero-stats {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-xl);
    }
    
    .stat-divider {
        display: none;
    }

    .stat {
        text-align: center;
        min-width: 110px;
    }
    
    .step {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .step-number {
        font-size: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2xl);
    }
}

@media (max-width: 600px) {
    .container {
        padding: 0 var(--space-lg);
    }
    
    .hero {
        min-height: auto;
        padding: 110px 0 var(--space-3xl);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-lg {
        width: 100%;
    }

    .hero-subtitle {
        font-size: 1.05rem;
        margin-bottom: var(--space-xl);
    }

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

    .hero-compare {
        gap: 10px;
        margin-top: 16px;
    }

    .hero-compare span {
        width: 100%;
        text-align: center;
    }

    .code-window {
        width: 100%;
        max-width: 100%;
    }

    .code-content {
        padding: var(--space-lg);
    }

    .preview-row {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .preview-action {
        width: 100%;
        text-align: left;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}