/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Apple-inspired Elegant Colors */
    --primary: #000000;
    --primary-light: #1d1d1f;
    --secondary: #424245;
    --accent: #0071e3;

    /* Text Colors - Clean & Minimal */
    --text-primary: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-muted: #86868b;

    /* Background Colors - Pure & Clean */
    --bg-primary: #ffffff;
    --bg-secondary: #fbfbfd;
    --bg-tertiary: #f5f5f7;

    /* Borders */
    --border: #d2d2d7;

    /* Shadows - Subtle */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Border Radius - Minimal */
    --radius: 12px;
    --radius-lg: 18px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    padding: 0;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 22px;
}

/* Hero Section - Clean & Elegant */
.hero {
    width: 100%;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
}

.hero-content {
    max-width: 980px;
    width: 100%;
    padding: 140px 22px 120px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.logo {
    margin-bottom: 48px;
    display: flex;
    justify-content: center;
    animation: fadeIn 1s ease-out;
}

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

.logo img {
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.08));
    transition: all 0.3s ease;
    max-width: 100%;
    height: auto;
}

.logo img:hover {
    transform: translateY(-4px);
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.12));
}

.hero h1 {
    font-size: 5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    line-height: 1.08;
    animation: fadeIn 1s ease-out 0.2s both;
}

.tagline {
    font-size: 1.75rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 400;
    letter-spacing: -0.01em;
    line-height: 1.3;
    animation: fadeIn 1s ease-out 0.3s both;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 48px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
    font-weight: 400;
    animation: fadeIn 1s ease-out 0.4s both;
}

.cta {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeIn 1s ease-out 0.5s both;
}

.btn-primary,
.btn-secondary {
    padding: 12px 22px;
    font-size: 1.0625rem;
    font-weight: 400;
    border-radius: 980px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    min-width: 120px;
}

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

.btn-primary:hover:not(:disabled) {
    background: #0077ed;
}

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

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

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

/* Features Section */
.features {
    padding: 120px 22px;
    background: var(--bg-primary);
}

.features h2,
.philosophy h2,
.tech h2,
.status h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 64px;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 980px;
    margin: 0 auto;
}

.feature {
    padding: 0;
    background: transparent;
    text-align: center;
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.feature h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.feature p {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.5;
    font-weight: 400;
}

/* Philosophy Section */
.philosophy {
    width: 100%;
    background: var(--bg-tertiary);
    position: relative;
    overflow: hidden;
    padding: 0;
    margin: 0;
}

.philosophy-content {
    max-width: 980px;
    width: 100%;
    margin: 0 auto;
    padding: 120px 22px;
    position: relative;
    z-index: 1;
}

.philosophy h2 {
    color: var(--text-primary);
    margin-bottom: 32px;
}

.philosophy blockquote {
    font-size: 1.75rem;
    font-style: normal;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 80px;
    line-height: 1.4;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: -0.01em;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.stat {
    text-align: center;
    padding: 40px 32px;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.stat:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-size: 3.5rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--text-secondary);
}

/* Tech Section */
.tech {
    padding: 120px 22px;
    background: var(--bg-primary);
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 980px;
    margin: 0 auto;
}

.tech-item {
    padding: 32px 28px;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    font-size: 1.0625rem;
    line-height: 1.5;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.tech-item:hover {
    border-color: var(--border);
    background: var(--bg-primary);
    transform: translateY(-2px);
}

.tech-item strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 1.125rem;
}

/* Status Section */
.status {
    padding: 120px 22px;
    background: var(--bg-secondary);
}

.status-message {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 64px;
    line-height: 1.5;
    font-weight: 400;
}

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

.roadmap-item {
    display: flex;
    gap: 24px;
    margin-bottom: 48px;
    position: relative;
}

.roadmap-item:last-child {
    margin-bottom: 0;
}

.roadmap-item::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 32px;
    width: 2px;
    height: calc(100% + 48px);
    background: var(--border);
}

.roadmap-item:last-child::before {
    display: none;
}

.roadmap-marker {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 3px solid var(--border);
    background: var(--bg-primary);
    flex-shrink: 0;
    margin-top: 4px;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.roadmap-item.completed .roadmap-marker {
    background: var(--text-primary);
    border-color: var(--text-primary);
}

.roadmap-content {
    flex: 1;
    padding: 0;
}

.roadmap-content h4 {
    font-size: 1.375rem;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.roadmap-content p {
    color: var(--text-secondary);
    line-height: 1.5;
    font-size: 1.0625rem;
    font-weight: 400;
}

/* Footer */
footer {
    padding: 60px 22px;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
}

.footer-content {
    text-align: center;
    color: var(--text-muted);
    max-width: 980px;
    margin: 0 auto;
}

.footer-content p {
    margin-bottom: 20px;
    font-size: 0.875rem;
    font-weight: 400;
}

.footer-links {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        padding: 100px 22px 80px;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .tagline {
        font-size: 1.5rem;
    }

    .subtitle {
        font-size: 1.125rem;
    }

    .features h2,
    .philosophy h2,
    .tech h2,
    .status h2 {
        font-size: 2.25rem;
    }

    .philosophy blockquote {
        font-size: 1.5rem;
    }

    .stat-value {
        font-size: 2.75rem;
    }

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

    .tech-stack {
        grid-template-columns: 1fr;
    }

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

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }

    .logo img {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    .hero-content {
        padding: 80px 22px 60px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .features,
    .philosophy-content,
    .tech,
    .status {
        padding: 80px 22px;
    }
}

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