/* ============================================
   shrrewd.me — Shared Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* --- Design Tokens --- */
:root {
    --bg-primary: #0a0e14;
    --bg-secondary: #0d1117;
    --bg-card: rgba(22, 27, 34, 0.6);
    --bg-card-hover: rgba(30, 37, 46, 0.8);

    --text-main: #e6edf3;
    --text-secondary: #c9d1d9;
    --text-muted: #8b949e;
    --text-dim: #484f58;

    --accent-blue: #58a6ff;
    --accent-cyan: #39d2c0;
    --accent-green: #3fb950;
    --accent-red: #ff7b72;
    --accent-orange: #f0883e;
    --accent-purple: #bc8cff;
    --accent-pink: #f778ba;

    --glow-blue: rgba(88, 166, 255, 0.15);
    --glow-cyan: rgba(57, 210, 192, 0.1);

    --border-default: rgba(48, 54, 61, 0.6);
    --border-glow: rgba(88, 166, 255, 0.3);

    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s 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;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg-primary);
    color: var(--text-main);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

::selection {
    background-color: var(--accent-blue);
    color: var(--bg-primary);
}

/* --- Noise / Grain Overlay --- */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
}

/* --- Scanline Effect --- */
body::after {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.03) 2px,
        rgba(0, 0, 0, 0.03) 4px
    );
    pointer-events: none;
    z-index: 9998;
}

/* --- Background Grid --- */
.bg-grid {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image:
        linear-gradient(rgba(88, 166, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(88, 166, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

/* --- Ambient Glow Orbs --- */
.glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
    z-index: 0;
    animation: orbFloat 20s ease-in-out infinite;
}

.glow-orb--1 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(88, 166, 255, 0.08), transparent 70%);
    top: -100px; right: -100px;
    animation-delay: 0s;
}

.glow-orb--2 {
    width: 350px; height: 350px;
    background: radial-gradient(circle, rgba(57, 210, 192, 0.06), transparent 70%);
    bottom: -50px; left: -100px;
    animation-delay: -7s;
}

.glow-orb--3 {
    width: 250px; height: 250px;
    background: radial-gradient(circle, rgba(188, 140, 255, 0.05), transparent 70%);
    top: 40%; left: 60%;
    animation-delay: -14s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -20px) scale(1.05); }
    50% { transform: translate(-20px, 30px) scale(0.95); }
    75% { transform: translate(15px, 15px) scale(1.02); }
}

/* --- Shared Navigation --- */
.nav {
    display: flex;
    gap: 1.5rem;
    font-size: 0.85rem;
    flex-wrap: wrap;
}

.nav a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-normal), text-shadow var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    position: relative;
}

.nav a::before {
    content: "[";
    opacity: 0.4;
    transition: all var(--transition-normal);
}

.nav a::after {
    content: "]";
    opacity: 0.4;
    transition: all var(--transition-normal);
}

.nav a:hover {
    color: var(--accent-blue);
    text-shadow: 0 0 20px var(--glow-blue);
}

.nav a:hover::before,
.nav a:hover::after {
    color: var(--accent-blue);
    opacity: 1;
}

.nav a.active {
    color: var(--accent-blue);
}

.nav a.active::before,
.nav a.active::after {
    color: var(--accent-blue);
    opacity: 0.7;
}

/* --- Cursor Blink --- */
.cursor {
    display: inline-block;
    width: 10px;
    height: 1.2em;
    background-color: var(--accent-blue);
    margin-left: 0.5rem;
    animation: blink 1s step-end infinite;
    box-shadow: 0 0 8px var(--glow-blue);
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* --- Terminal Prompt --- */
.prompt {
    color: var(--text-muted);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.prompt .user { color: var(--accent-red); }
.prompt .path { color: var(--accent-blue); }
.prompt .branch { color: var(--accent-green); }

/* --- Glass Card --- */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: all var(--transition-normal);
    position: relative;
}

.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.1), transparent 50%, rgba(57, 210, 192, 0.05));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--border-glow);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--border-glow);
}

.glass-card:hover::before {
    opacity: 1;
}

/* --- Skill Pill --- */
.pill {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    border-radius: 999px;
    border: 1px solid var(--border-default);
    background: var(--bg-card);
    color: var(--text-secondary);
    transition: all var(--transition-normal);
    cursor: default;
}

.pill:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    box-shadow: 0 0 12px var(--glow-blue);
    transform: translateY(-1px);
}

.pill--lang { border-color: rgba(255, 123, 114, 0.3); color: var(--accent-red); }
.pill--lang:hover { border-color: var(--accent-red); box-shadow: 0 0 12px rgba(255, 123, 114, 0.2); }

.pill--framework { border-color: rgba(63, 185, 80, 0.3); color: var(--accent-green); }
.pill--framework:hover { border-color: var(--accent-green); box-shadow: 0 0 12px rgba(63, 185, 80, 0.2); }

.pill--tool { border-color: rgba(188, 140, 255, 0.3); color: var(--accent-purple); }
.pill--tool:hover { border-color: var(--accent-purple); box-shadow: 0 0 12px rgba(188, 140, 255, 0.2); }

.pill--method { border-color: rgba(57, 210, 192, 0.3); color: var(--accent-cyan); }
.pill--method:hover { border-color: var(--accent-cyan); box-shadow: 0 0 12px rgba(57, 210, 192, 0.2); }

/* --- Section Header (terminal-style) --- */
.section-header {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.section-header::before {
    content: '//';
    color: var(--accent-blue);
    opacity: 0.5;
}

.section-header::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-default), transparent);
}

/* --- Timeline --- */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    bottom: 0.5rem;
    width: 1px;
    background: linear-gradient(to bottom, var(--accent-blue), var(--accent-cyan), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0.65rem;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-blue);
    box-shadow: 0 0 10px var(--glow-blue);
    transform: translateX(-3.5px);
}

.timeline-item:last-child::before {
    background: var(--accent-cyan);
    box-shadow: 0 0 10px var(--glow-cyan);
}

/* --- Entrance Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.animate-in-1 { animation-delay: 0.1s; }
.animate-in-2 { animation-delay: 0.2s; }
.animate-in-3 { animation-delay: 0.35s; }
.animate-in-4 { animation-delay: 0.5s; }
.animate-in-5 { animation-delay: 0.65s; }

/* --- Status Bar --- */
.status-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 28px;
    background: rgba(22, 27, 34, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-default);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    font-size: 0.7rem;
    color: var(--text-dim);
    font-family: var(--font-mono);
    z-index: 100;
}

.status-bar__left,
.status-bar__right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-bar__indicator {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.status-bar__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-green);
    box-shadow: 0 0 6px rgba(63, 185, 80, 0.4);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .glass-card {
        padding: 1.25rem;
    }

    .nav {
        gap: 1rem;
    }

    .status-bar {
        font-size: 0.6rem;
        padding: 0 0.75rem;
    }
}

@media (max-width: 480px) {
    .nav {
        gap: 0.75rem;
        font-size: 0.8rem;
    }
}