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

:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --accent-color: #0ea5e9;
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --card-bg: #1e293b;
    --text-color: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --code-bg: #0f172a;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px -1px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

/* ===== Navigation ===== */
.navbar {
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.05em;
    transition: all 0.2s;
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.nav-logo:hover {
    color: var(--accent-color);
    text-shadow: 0 0 25px rgba(59, 130, 246, 0.5);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
    margin: 0;
}

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

.nav-menu li:last-child a {
    background-color: var(--primary-color);
    color: white;
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
}

.nav-menu li:last-child a:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
    text-decoration: none;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
    padding: 0.625rem 1rem;
    border-radius: 0.375rem;
    display: inline-flex;
    align-items: center;
}

.nav-menu a:hover {
    color: var(--text-color);
    background-color: rgba(59, 130, 246, 0.1);
    text-decoration: none;
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #0c4a6e 100%);
    color: white;
    min-height: 500px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    display: flex;
    align-items: center;
}

.hero .container {
    width: 100%;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
    position: relative;
    z-index: 1;
}

.hero .subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
    color: #e0e7ff;
}

.hero .version {
    font-size: 1rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
    color: #cbd5e1;
}

.hero .tagline {
    font-size: 1.125rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
    color: #e2e8f0;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2.5rem;
    font-size: 1.0625rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    letter-spacing: 0.025em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(59, 130, 246, 0.6);
    text-decoration: none;
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
    text-decoration: none;
}

.btn-secondary:active {
    transform: translateY(-1px);
}

/* ===== Main Content ===== */
main {
    padding: 4rem 0;
}

section {
    margin-bottom: 4rem;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.875rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

h5 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

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

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

a:hover {
    text-decoration: underline;
}

/* ===== Feature Grid ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.feature {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.3s;
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.feature:hover .feature-icon {
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.5);
}

.feature h3 {
    font-size: 1.25rem;
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.feature p {
    margin-bottom: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ===== Tables ===== */
.table-wrapper {
    overflow-x: auto;
    margin: 1.5rem 0;
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--card-bg);
}

thead {
    background-color: var(--bg-tertiary);
    color: var(--text-color);
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

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

tbody tr:hover {
    background-color: var(--bg-tertiary);
}

tbody tr:last-child td {
    border-bottom: none;
}

.perf-number {
    font-weight: 600;
    color: var(--success-color);
}

.size-number {
    font-weight: 600;
    color: var(--text-secondary);
}

/* ===== Code Blocks ===== */
code {
    background-color: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 0.875em;
    color: #60a5fa;
    border: 1px solid var(--border-color);
}

pre {
    background-color: #0a0f1e;
    border-radius: 0.5rem;
    padding: 1.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

pre code {
    background-color: transparent;
    padding: 0;
    color: #e2e8f0;
    font-size: 0.875rem;
    line-height: 1.7;
    border: none;
}

/* ===== Notes & Alerts ===== */
.note {
    background-color: rgba(59, 130, 246, 0.1);
    border-left: 4px solid var(--primary-color);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0.25rem;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-left: 4px solid var(--primary-color);
}

.note p {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.note p:last-child {
    margin-bottom: 0;
}

.note strong {
    color: var(--primary-color);
}

/* ===== Lists ===== */
ul, ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

li strong {
    color: var(--text-color);
}

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

footer p {
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

footer a {
    color: var(--primary-color);
    margin: 0 0.5rem;
    transition: color 0.2s;
}

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .hero {
        min-height: 400px;
        padding: 2rem 0;
    }

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

    .hero .subtitle {
        font-size: 1.25rem;
    }

    .hero .tagline {
        font-size: 1rem;
    }

    .nav-menu {
        gap: 0.25rem;
        font-size: 0.8125rem;
    }

    .nav-menu a {
        padding: 0.5rem 0.75rem;
    }

    .nav-menu li:last-child a {
        padding: 0.5rem 1rem;
    }

    .nav-logo {
        font-size: 1.5rem;
    }

    .nav-container {
        padding: 0 1rem;
        height: 60px;
    }

    .container {
        padding: 0 1rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.5rem;
    }

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

    table {
        font-size: 0.875rem;
    }

    th, td {
        padding: 0.75rem;
    }

    .btn {
        padding: 0.75rem 2rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .nav-menu {
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: center;
    }

    .hero {
        min-height: 500px;
        padding: 2rem 0;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .btn {
        width: 100%;
    }
}