/* ===== AdaNeu — Design System ===== */

:root {
    --color-bg: #0a0a0f;
    --color-bg-alt: #12121a;
    --color-bg-card: #1a1a2e;
    --color-bg-card-hover: #222240;
    --color-surface: #16213e;
    --color-primary: #6c63ff;
    --color-primary-light: #8b83ff;
    --color-primary-dark: #4a42d4;
    --color-accent: #00d4aa;
    --color-accent-light: #33e0be;
    --color-text: #e8e8f0;
    --color-text-secondary: #a0a0b8;
    --color-text-muted: #6b6b80;
    --color-border: #2a2a3e;
    --color-success: #00d4aa;
    --color-warning: #ffb84d;
    --color-error: #ff6b6b;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.4);
    --max-width: 1200px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    background: rgba(108, 99, 255, 0.15);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.88em;
    color: var(--color-primary-light);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text);
    font-weight: 700;
    font-size: 1.3rem;
}

.logo-icon {
    color: var(--color-primary);
    font-size: 1.5rem;
}

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

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

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

.nav-cta {
    background: var(--color-primary);
    color: white !important;
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all var(--transition);
}

.nav-cta:hover {
    background: var(--color-primary-light) !important;
    color: white !important;
    transform: translateY(-1px);
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

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

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

.hero {
    padding: 160px 24px 80px;
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    min-height: 100vh;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    background: rgba(108, 99, 255, 0.15);
    border: 1px solid rgba(108, 99, 255, 0.3);
    color: var(--color-primary-light);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.hero-highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-cta-group {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.hero-tagline {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.hero-tagline-icon {
    font-size: 1.2rem;
}

/* ===== Buttons ===== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    font-family: var(--font-main);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(108, 99, 255, 0.3);
}

.btn-primary:hover {
    background: var(--color-primary-light);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(108, 99, 255, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-light);
    background: rgba(108, 99, 255, 0.08);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.05rem;
}

/* ===== Terminal ===== */

.terminal {
    background: var(--color-bg-alt);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--color-border);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #28ca41; }

.terminal-title {
    margin-left: 8px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-family: 'JetBrains Mono', monospace;
}

.terminal-body {
    padding: 16px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.82rem;
    line-height: 2;
}

.terminal-line {
    display: flex;
    gap: 12px;
    opacity: 0.7;
    padding: 2px 8px;
    border-radius: 4px;
    transition: all var(--transition);
}

.terminal-line:hover,
.terminal-line.active {
    opacity: 1;
    background: rgba(108, 99, 255, 0.08);
}

.t-hash {
    color: var(--color-warning);
    min-width: 60px;
}

.t-msg {
    color: var(--color-text);
    flex: 1;
}

.t-agent {
    color: var(--color-accent);
    text-align: right;
}

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

.problem {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

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

.problem-card {
    padding: 32px;
    background: var(--color-bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

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

.problem-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.problem-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--color-text);
}

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

/* ===== Section Headers ===== */

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== How It Works ===== */

.how-it-works {
    padding: 120px 0;
}

.steps {
    max-width: 700px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 32px;
    margin-bottom: 48px;
    padding: 32px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: all var(--transition);
}

.step:hover {
    border-color: var(--color-border);
    background: var(--color-bg-card);
}

.step-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    opacity: 0.5;
    min-width: 60px;
    line-height: 1;
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.step-content p {
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.step-code {
    background: rgba(0, 0, 0, 0.3);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.step-code code {
    background: none;
    padding: 0;
    color: var(--color-accent);
    font-size: 0.82rem;
}

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

.features {
    padding: 120px 0;
    background: var(--color-bg-alt);
}

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

.feature-card {
    padding: 36px;
    background: var(--color-bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

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

.feature-highlight {
    border-color: rgba(108, 99, 255, 0.3);
    background: linear-gradient(135deg, var(--color-bg-card), rgba(108, 99, 255, 0.08));
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.93rem;
    line-height: 1.7;
}

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

.trust {
    padding: 120px 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.trust-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.trust-lead {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    margin-bottom: 36px;
}

.trust-point {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
}

.trust-check {
    width: 28px;
    height: 28px;
    min-width: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 170, 0.15);
    color: var(--color-accent);
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
    margin-top: 2px;
}

.trust-point strong {
    display: block;
    margin-bottom: 4px;
    font-size: 1rem;
}

.trust-point p {
    color: var(--color-text-secondary);
    font-size: 0.93rem;
    margin: 0;
}

/* ===== Audit Card ===== */

.audit-card {
    background: var(--color-bg-alt);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    padding: 24px;
    box-shadow: var(--shadow-lg);
}

.audit-card h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.audit-entry {
    display: grid;
    grid-template-columns: 70px 120px 90px 1fr;
    gap: 8px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(42, 42, 62, 0.5);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    align-items: center;
}

.audit-entry:last-child {
    border-bottom: none;
}

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

.audit-agent {
    color: var(--color-accent);
}

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

.audit-task {
    color: var(--color-text-secondary);
}

/* ===== Comparison ===== */

.comparison {
    padding: 120px 0;
    background: var(--color-bg-alt);
}

.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.comparison-table th,
.comparison-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.comparison-table thead th {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text);
    padding-bottom: 20px;
}

.comparison-table td:first-child {
    font-weight: 600;
    color: var(--color-text-secondary);
}

.highlight-col {
    background: rgba(108, 99, 255, 0.08);
    color: var(--color-accent) !important;
    font-weight: 600;
}

.comparison-table thead .highlight-col {
    color: var(--color-primary-light) !important;
}

/* ===== Vision ===== */

.vision {
    padding: 120px 0;
}

.vision-mission {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 60px;
}

.vision-card {
    padding: 40px;
    background: var(--color-bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.vision-card h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    color: var(--color-primary-light);
}

.vision-card p {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}

.vision-values h3 {
    font-size: 1.5rem;
    margin-bottom: 32px;
    text-align: center;
}

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

.value {
    padding: 24px;
    border-left: 3px solid var(--color-primary);
    background: rgba(108, 99, 255, 0.04);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.value strong {
    display: block;
    margin-bottom: 8px;
    font-size: 1rem;
}

.value p {
    color: var(--color-text-secondary);
    font-size: 0.93rem;
    margin: 0;
}

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

.cta {
    padding: 120px 0;
    background: linear-gradient(135deg, rgba(108, 99, 255, 0.12), rgba(0, 212, 170, 0.08));
    text-align: center;
}

.cta h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.cta-subtitle {
    font-size: 1.5rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 16px;
}

.cta p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    margin-bottom: 36px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

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

.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-text);
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-links h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.footer-links a {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

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

/* ===== Animations ===== */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

@media (max-width: 968px) {
    .hero {
        grid-template-columns: 1fr;
        padding-top: 120px;
        min-height: auto;
        gap: 40px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

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

    .vision-mission {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .audit-entry {
        grid-template-columns: 60px 100px 80px 1fr;
        font-size: 0.72rem;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .section-header h2 {
        font-size: 2rem;
    }

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

    .step {
        flex-direction: column;
        gap: 16px;
    }

    .cta h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--color-border);
    }

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

    .nav-mobile-toggle {
        display: flex;
    }

    .comparison-table {
        font-size: 0.82rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 10px 12px;
    }

    .audit-entry {
        grid-template-columns: 1fr 1fr;
        gap: 4px;
    }
}