/* ============================================================================
   SLEPP.SH - Stylesheet
   A modern, clean developer tool aesthetic
   ============================================================================ */

:root {
    /* Colors - Dark theme with accent */
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #1a1a1d;
    --bg-code: #0d1117;
    
    --text-primary: #e6e6e6;
    --text-secondary: #a0a0a0;
    --text-muted: #666;
    
    --accent: #c41e3a;  /* Canadian red */
    --accent-hover: #e52b50;
    --accent-subtle: rgba(196, 30, 58, 0.1);
    
    --border: #2a2a2d;
    --border-light: #333338;
    
    --success: #22c55e;
    --warning: #eab308;
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    
    /* Spacing */
    --container-max: 1100px;
    --section-padding: 5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.version {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

nav {
    display: flex;
    gap: 2rem;
}

nav a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

/* Hero */
.hero {
    text-align: center;
    padding: var(--section-padding) 0;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    margin: 0 0 1rem;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin: 0;
    max-width: 600px;
    margin: 0 auto;
}

/* Install Section */
.install-section {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
    margin: 0 -1.5rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.install-section h2 {
    text-align: center;
    font-size: 1.75rem;
    margin: 0 0 2rem;
}

/* OS Tabs */
.os-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.os-tab {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    padding: 0.6rem 1.25rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.os-tab:hover {
    border-color: var(--border-light);
    color: var(--text-primary);
}

.os-tab.active {
    background: var(--accent-subtle);
    border-color: var(--accent);
    color: var(--accent);
}

/* Install Panels */
.install-panels {
    max-width: 700px;
    margin: 0 auto;
}

.install-panel {
    display: none;
}

.install-panel.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.install-panel h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 1.5rem 0 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.install-panel h3:first-child {
    margin-top: 0;
}

/* Code Block */
.code-block {
    display: flex;
    align-items: center;
    background: var(--bg-code);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin: 0.5rem 0;
    overflow-x: auto;
}

.code-block code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-primary);
    white-space: nowrap;
}

.copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
    border-radius: 4px;
    flex-shrink: 0;
}

.copy-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.copy-btn.copied {
    color: var(--success);
}

.install-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0.75rem 0 0;
}

/* Features Section */
.features-section {
    padding: var(--section-padding) 0;
}

.features-section h2 {
    text-align: center;
    font-size: 1.75rem;
    margin: 0 0 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.feature {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: border-color var(--transition-normal);
}

.feature:hover {
    border-color: var(--border-light);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.feature h3 {
    font-size: 1.1rem;
    margin: 0 0 0.5rem;
    color: var(--text-primary);
}

.feature p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

/* Stats Section */
.stats-section {
    padding: 3rem 0;
    background: var(--bg-secondary);
    margin: 0 -1.5rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* CTA Section */
.cta-section {
    padding: var(--section-padding) 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 1.75rem;
    margin: 0 0 0.5rem;
}

.cta-section p {
    color: var(--text-secondary);
    margin: 0 0 1.5rem;
}

.cta-code {
    max-width: 500px;
    margin: 0 auto;
    justify-content: center;
}

/* Footer */
footer {
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

footer p {
    margin: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

footer a {
    color: var(--text-secondary);
    font-weight: 500;
}

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

.footer-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --section-padding: 3rem;
    }
    
    header {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav {
        gap: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .stat-value {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .os-tabs {
        flex-direction: column;
        align-items: stretch;
    }
    
    .os-tab {
        text-align: center;
    }
    
    .code-block {
        padding: 0.5rem 0.75rem;
    }
    
    .code-block code {
        font-size: 0.85rem;
    }
}

/* Subtle background pattern (optional) */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 25px 25px, var(--border) 1px, transparent 0);
    background-size: 50px 50px;
    opacity: 0.3;
    pointer-events: none;
    z-index: -1;
}

/* Selection color */
::selection {
    background: var(--accent);
    color: white;
}

/* Scrollbar styling (webkit) */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}