/* ===== CSS Variables - Light Theme ===== */
:root[data-theme="light"] {
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #fafaf9;
    --color-bg-tertiary: #f5f5f4;
    --color-bg-elevated: #ffffff;

    --color-text-primary: #292524;
    --color-text-secondary: #57534e;
    --color-text-tertiary: #78716c;

    --color-accent-primary: #0d9488;
    --color-accent-secondary: #14b8a6;
    --color-accent-hover: #0f766e;

    --color-border: #e7e5e4;
    --color-border-strong: #d6d3d1;

    --color-code-bg: #f5f5f4;
    --color-code-text: #292524;

    --color-success: #14b8a6;
    --color-warning: #f59e0b;
    --color-pulse: #0d9488;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* ===== CSS Variables - Dark Theme ===== */
:root[data-theme="dark"] {
    --color-bg-primary: #1c1917;
    --color-bg-secondary: #292524;
    --color-bg-tertiary: #44403c;
    --color-bg-elevated: #292524;

    --color-text-primary: #f5f5f4;
    --color-text-secondary: #d6d3d1;
    --color-text-tertiary: #a8a29e;

    --color-accent-primary: #2dd4bf;
    --color-accent-secondary: #14b8a6;
    --color-accent-hover: #5eead4;

    --color-border: #44403c;
    --color-border-strong: #57534e;

    --color-code-bg: #292524;
    --color-code-text: #f5f5f4;

    --color-success: #14b8a6;
    --color-warning: #f59e0b;
    --color-pulse: #2dd4bf;

    --shadow-sm: 0 0 transparent;
    --shadow-md: 0 0 transparent;
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
}

/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-family: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--color-text-secondary);
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

code {
    font-family: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', monospace;
    background-color: var(--color-code-bg);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.875em;
    color: var(--color-accent-primary);
    border: 1px solid var(--color-border);
}

pre {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
    border: 1px solid var(--color-border);
}

pre code {
    background: none;
    color: var(--color-text-primary);
    padding: 0;
    border: none;
    font-size: 0.875rem;
    line-height: 1.6;
}

/* ===== Header & Navigation ===== */
header {
    background-color: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.8);
}

[data-theme="dark"] header {
    background-color: rgba(41, 37, 36, 0.8);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo h1 {
    font-size: 1.25rem;
    color: var(--color-text-primary);
    font-weight: 700;
}

.logo a {
    color: inherit;
    text-decoration: none;
}

.logo-bracket {
    color: var(--color-accent-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color 0.2s;
    position: relative;
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent-primary);
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 0.5rem;
    cursor: pointer;
    font-size: 1.25rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
}

.theme-toggle:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-accent-primary);
}

.theme-icon {
    line-height: 1;
}

/* ===== Section Labels ===== */
.section-label {
    color: var(--color-accent-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    padding: 6rem 0;
    border-bottom: 1px solid var(--color-border);
}

.hero-page {
    padding: 4rem 0 3rem;
}

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

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-accent-primary);
    margin-bottom: 2rem;
}

.hero h2 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero .subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    margin: 3rem 0;
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stat {
    text-align: center;
}

.stat-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* Hero CTA */
.hero-cta {
    margin-top: 3rem;
}

.coming-soon-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-accent-primary);
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.pulse {
    width: 10px;
    height: 10px;
    background: var(--color-pulse);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.1);
    }
}

.coming-soon-text {
    font-size: 0.9375rem;
    color: var(--color-text-tertiary);
}

/* ===== Sections ===== */
section {
    padding: 5rem 0;
}

.section-intro {
    font-size: 1.125rem;
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    color: var(--color-text-secondary);
}

section h2 {
    text-align: center;
}

/* ===== Feature Grid ===== */
.features {
    background: var(--color-bg-primary);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--color-bg-elevated);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

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

.feature-card.feature-highlight {
    border: 2px solid var(--color-accent-primary);
    background: linear-gradient(135deg, var(--color-bg-elevated) 0%, var(--color-bg-secondary) 100%);
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.feature-icon {
    font-size: 2rem;
    line-height: 1;
}

.feature-card h3 {
    margin: 0;
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.feature-tech {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.feature-tech code {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    background: transparent;
    border: none;
    padding: 0;
}

/* ===== Privacy Section ===== */
.privacy {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.privacy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.privacy-card {
    background: var(--color-bg-elevated);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.privacy-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.privacy-icon {
    margin-bottom: 1.5rem;
}

.icon-box {
    width: 56px;
    height: 56px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-primary);
}

.privacy-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

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

.privacy-commitment {
    margin-top: 4rem;
}

.commitment-box {
    background: var(--color-bg-elevated);
    border: 2px solid var(--color-accent-primary);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.commitment-box h4 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent-primary);
}

.commitment-box p {
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.commitment-footer {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9375rem;
    color: var(--color-accent-primary);
    margin-top: 1.5rem;
    margin-bottom: 0;
}

/* ===== Coming Soon Section ===== */
.coming-soon {
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border);
}

.launch-status {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    margin-bottom: 2rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

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

.launch-status h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.launch-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: 3rem;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.platform-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
}

.platform-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.platform-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.platform-card p {
    font-size: 0.9375rem;
    color: var(--color-text-tertiary);
    margin-bottom: 1rem;
}

.platform-status {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-accent-primary);
}

.launch-note {
    margin-top: 3rem;
    padding: 1.5rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.launch-note p {
    margin: 0;
    color: var(--color-text-secondary);
}

/* ===== How It Works - Detailed Workflow ===== */
.workflow-detailed {
    background: var(--color-bg-primary);
}

.workflow-step-detailed {
    margin-bottom: 4rem;
    padding-bottom: 4rem;
    border-bottom: 2px solid var(--color-border);
}

.workflow-step-detailed:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.step-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.step-number-large {
    font-family: 'JetBrains Mono', monospace;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    line-height: 1;
}

.step-title h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.step-subtitle {
    color: var(--color-text-tertiary);
    font-size: 1rem;
    margin: 0;
}

.step-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.step-description h4 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.step-description p {
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.prefix-list,
.review-list {
    list-style: none;
    margin: 1.5rem 0;
}

.prefix-list li,
.review-list li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.25rem;
    align-items: flex-start;
}

.prefix-list code {
    flex-shrink: 0;
    font-weight: 600;
}

.prefix-list span,
.review-list span {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.review-list strong {
    color: var(--color-text-primary);
    display: block;
    margin-bottom: 0.25rem;
}

.step-note {
    padding: 1rem 1.25rem;
    background: var(--color-bg-tertiary);
    border-left: 3px solid var(--color-accent-primary);
    border-radius: 4px;
    margin-top: 1.5rem;
    font-size: 0.9375rem;
}

.step-visual {
    display: flex;
    align-items: flex-start;
}

.code-block {
    width: 100%;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
}

.code-header {
    padding: 0.75rem 1rem;
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.code-lang {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
}

.code-block pre {
    margin: 0;
    border: none;
    border-radius: 0;
    background: transparent;
}

/* ===== Workflow Benefits ===== */
.workflow-benefits {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-card {
    background: var(--color-bg-elevated);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.benefit-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-accent-primary);
}

.benefit-card p {
    line-height: 1.6;
}

/* ===== CTA Section ===== */
.cta-section {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    border-top: 1px solid var(--color-border);
}

.cta-box {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    padding: 3rem;
    background: var(--color-bg-elevated);
    border: 2px solid var(--color-border);
    border-radius: 12px;
}

.cta-box h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-box p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.cta-box .coming-soon-badge {
    margin: 2rem 0;
}

.cta-footer {
    margin-top: 2rem;
    margin-bottom: 0;
    font-size: 0.9375rem;
}

.cta-footer a {
    font-weight: 600;
}

/* ===== Footer ===== */
footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.footer-logo p {
    color: var(--color-text-tertiary);
    font-size: 0.9375rem;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.footer-column h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
    margin-bottom: 1rem;
    font-weight: 600;
}

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

.footer-column li {
    margin-bottom: 0.75rem;
}

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

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
    margin: 0;
}

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
    .step-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .hero h2 {
        font-size: 2.5rem;
    }

    .hero .subtitle {
        font-size: 1.0625rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .nav-links {
        gap: 1rem;
        font-size: 0.875rem;
    }

    .feature-grid,
    .privacy-grid,
    .benefits-grid,
    .platform-grid {
        grid-template-columns: 1fr;
    }

    section {
        padding: 3rem 0;
    }

    h2 {
        font-size: 2rem;
    }

    .step-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    nav {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

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

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