/* =============================================
   Ben Wilkoff Portfolio - Style System
   A clean, professional design with creative touches
   ============================================= */

/* --- CSS Custom Properties --- */
:root {
  --color-ink: #1a1a2e;
  --color-text: #2d2d44;
  --color-muted: #6b6b80;
  --color-light: #9a9ab0;
  --color-border: #e2e2ee;
  --color-surface: #f7f7fb;
  --color-bg: #ffffff;
  --color-accent: #2a9d8f;
  --color-accent-light: #e6f5f3;
  --color-accent-dark: #1e7268;
  --color-warm: #e9c46a;
  --color-warm-light: #fdf6e3;
  --color-coral: #e76f51;
  --color-coral-light: #fef0ec;
  --font-heading: 'Source Serif 4', 'Georgia', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 1.75rem;
  --space-2xl: 2.5rem;
  --space-3xl: 3.5rem;
  --max-width: 1100px;
  --nav-height: 64px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-body); color: var(--color-text); background: var(--color-bg); line-height: 1.7; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--color-accent-dark); }

/* --- Typography --- */
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-ink); line-height: 1.25; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); font-weight: 600; }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }
p { margin-bottom: var(--space-md); }
.lead { font-size: 1.2rem; color: var(--color-muted); line-height: 1.8; max-width: 680px; }

/* --- Navigation --- */
.site-nav { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--color-border); height: var(--nav-height); }
.nav-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); display: flex; align-items: center; justify-content: space-between; height: 100%; }
.nav-brand { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 700; color: var(--color-ink); display: flex; align-items: center; gap: var(--space-sm); }
.nav-brand:hover { color: var(--color-accent); }
.nav-brand .brand-mark { width: 32px; height: 32px; background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark)); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: white; font-size: 0.85rem; font-weight: 700; }
.nav-links { display: flex; list-style: none; gap: var(--space-xs); }
.nav-links a { display: block; padding: var(--space-sm) var(--space-md); color: var(--color-muted); font-size: 0.9rem; font-weight: 500; border-radius: 8px; transition: all 0.2s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--color-accent); background: var(--color-accent-light); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: var(--space-sm); color: var(--color-text); }
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: var(--nav-height); left: 0; right: 0; background: var(--color-bg); border-bottom: 1px solid var(--color-border); flex-direction: column; padding: var(--space-md); box-shadow: 0 8px 30px rgba(0,0,0,0.08); }
  .nav-links.open { display: flex; }
}

/* --- Page Layout --- */
.page-container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); }

/* --- Hero Section --- */
.hero { padding: var(--space-3xl) 0 var(--space-2xl); text-align: center; }
.hero h1 { margin-bottom: var(--space-lg); }
.hero .lead { margin: 0 auto var(--space-xl); }
.hero-subtitle { display: inline-flex; align-items: center; gap: var(--space-sm); font-size: 0.9rem; font-weight: 500; color: var(--color-accent); background: var(--color-accent-light); padding: var(--space-xs) var(--space-md); border-radius: 100px; margin-bottom: var(--space-lg); }

/* --- Hero with decorative background --- */
.hero-decorated { position: relative; overflow: hidden; }
.hero-decorated::before { content: ''; position: absolute; top: -60%; right: -15%; width: 700px; height: 700px; background: radial-gradient(circle, var(--color-accent-light) 0%, transparent 60%); opacity: 0.6; pointer-events: none; }
.hero-decorated::after { content: ''; position: absolute; bottom: -40%; left: -10%; width: 500px; height: 500px; background: radial-gradient(circle, var(--color-warm-light) 0%, transparent 60%); opacity: 0.5; pointer-events: none; }
.hero-decorated > * { position: relative; z-index: 1; }

/* --- Section Styles --- */
.section { padding: var(--space-2xl) 0; }
.section + .section { border-top: 1px solid var(--color-border); }
.section-header { margin-bottom: var(--space-xl); }
.section-header h2 { margin-bottom: var(--space-sm); }
.section-header .lead { margin-top: var(--space-sm); }

/* --- Card Grid --- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--space-lg); }
.card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: 12px; padding: var(--space-xl); transition: all 0.25s ease; position: relative; }
.card:hover { border-color: var(--color-accent); box-shadow: 0 8px 30px rgba(42, 157, 143, 0.1); transform: translateY(-3px); }
.card-tag { display: inline-block; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-accent); background: var(--color-accent-light); padding: 2px 10px; border-radius: 4px; margin-bottom: var(--space-md); }
.card h3 { margin-bottom: var(--space-sm); }
.card p { color: var(--color-muted); font-size: 0.95rem; margin-bottom: var(--space-md); }
.card-link { font-size: 0.9rem; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.card-link::after { content: '\2192'; transition: transform 0.2s ease; }
.card:hover .card-link::after { transform: translateX(3px); }

/* --- Card accent colors --- */
.card-warm { border-left: 4px solid var(--color-warm); }
.card-coral { border-left: 4px solid var(--color-coral); }
.card-accent { border-left: 4px solid var(--color-accent); }

/* --- Decorative big number --- */
.big-number { font-family: var(--font-heading); font-size: 5rem; font-weight: 700; color: var(--color-accent-light); line-height: 1; position: absolute; top: var(--space-lg); right: var(--space-xl); opacity: 0.6; }

/* --- Timeline --- */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--color-accent), var(--color-warm), var(--color-coral), var(--color-accent)); }
.timeline-item { position: relative; padding-bottom: var(--space-2xl); }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before { content: ''; position: absolute; left: -2rem; top: 6px; width: 12px; height: 12px; background: var(--color-accent); border-radius: 50%; border: 3px solid var(--color-bg); box-shadow: 0 0 0 2px var(--color-accent); transform: translateX(-5px); }
.timeline-date { font-size: 0.85rem; font-weight: 600; color: var(--color-accent); margin-bottom: var(--space-xs); }
.timeline-item h3 { margin-bottom: 4px; }
.timeline-org { font-size: 0.95rem; color: var(--color-muted); font-style: italic; margin-bottom: var(--space-sm); }
.timeline-item p { color: var(--color-muted); font-size: 0.95rem; }

/* --- Tags / Pills --- */
.tag-list { display: flex; flex-wrap: wrap; gap: var(--space-sm); list-style: none; }
.tag { font-size: 0.8rem; font-weight: 500; color: var(--color-muted); background: var(--color-surface); padding: 4px 12px; border-radius: 100px; border: 1px solid var(--color-border); }

/* --- Feature Banner --- */
.feature-banner { background: var(--color-surface); border-radius: 16px; padding: var(--space-2xl); margin: var(--space-xl) 0; display: flex; gap: var(--space-xl); align-items: center; }
.feature-banner-text { flex: 1; }
.feature-banner-text h3 { margin-bottom: var(--space-sm); }
.feature-banner-text p { color: var(--color-muted); }
@media (max-width: 768px) { .feature-banner { flex-direction: column; text-align: center; padding: var(--space-xl); } }

/* --- Stat Row --- */
.stat-row { display: flex; gap: var(--space-xl); justify-content: center; flex-wrap: wrap; padding: var(--space-xl) 0; }
.stat { text-align: center; min-width: 120px; }
.stat-number { font-family: var(--font-heading); font-size: 2.5rem; font-weight: 700; color: var(--color-accent); line-height: 1; }
.stat-label { font-size: 0.85rem; color: var(--color-muted); margin-top: var(--space-xs); }

/* --- Button --- */
.btn { display: inline-flex; align-items: center; gap: var(--space-sm); padding: 10px 24px; border-radius: 8px; font-size: 0.9rem; font-weight: 600; cursor: pointer; border: none; transition: all 0.2s ease; }
.btn-primary { background: var(--color-accent); color: white; }
.btn-primary:hover { background: var(--color-accent-dark); color: white; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(42, 157, 143, 0.3); }
.btn-outline { background: transparent; color: var(--color-accent); border: 1.5px solid var(--color-accent); }
.btn-outline:hover { background: var(--color-accent-light); }
.btn-warm { background: var(--color-warm); color: var(--color-ink); }
.btn-warm:hover { background: #d4b05e; }

/* --- Video Grid --- */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--space-lg); }

/* --- YouTube Embed --- */
.yt-embed { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 12px; margin-bottom: var(--space-lg); box-shadow: 0 4px 20px rgba(0,0,0,0.1); }
.yt-embed iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }

/* --- YouTube Embed Small (for multi-embed layouts) --- */
.yt-embed-sm { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 8px; box-shadow: 0 2px 12px rgba(0,0,0,0.08); }
.yt-embed-sm iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }

/* --- Writing List --- */
.writing-list { list-style: none; }
.writing-item { padding: var(--space-lg) 0; border-bottom: 1px solid var(--color-border); display: flex; gap: var(--space-lg); align-items: baseline; }
.writing-item:last-child { border-bottom: none; }
.writing-date { font-size: 0.85rem; color: var(--color-light); font-weight: 500; white-space: nowrap; min-width: 80px; }
.writing-title { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 600; color: var(--color-ink); }
a.writing-title:hover { color: var(--color-accent); }
.writing-source { font-size: 0.85rem; color: var(--color-muted); }
@media (max-width: 600px) { .writing-item { flex-direction: column; gap: var(--space-xs); } }

/* --- Blog Post Highlight --- */
.post-highlight { background: var(--color-surface); border-radius: 12px; padding: var(--space-xl); border-left: 4px solid var(--color-accent); margin-bottom: var(--space-lg); transition: all 0.25s ease; }
.post-highlight:hover { border-left-color: var(--color-warm); box-shadow: 0 4px 16px rgba(0,0,0,0.06); }
.post-highlight .post-meta { font-size: 0.8rem; color: var(--color-light); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: var(--space-sm); }
.post-highlight h4 { margin-bottom: var(--space-sm); }
.post-highlight .post-excerpt { font-family: var(--font-heading); font-style: italic; color: var(--color-text); font-size: 1.05rem; line-height: 1.7; margin-bottom: var(--space-md); }

/* --- Decorative Patterns --- */
.pattern-dots { background-image: radial-gradient(var(--color-border) 1px, transparent 1px); background-size: 20px 20px; }

/* --- Divider shapes --- */
.section-divider { height: 4px; background: linear-gradient(90deg, var(--color-accent), var(--color-warm), var(--color-coral)); border-radius: 2px; margin: var(--space-lg) 0; opacity: 0.6; }

/* --- Full-width section background --- */
.section-full { margin-left: calc(-50vw + 50%); margin-right: calc(-50vw + 50%); padding-left: calc(50vw - 50%); padding-right: calc(50vw - 50%); }
.section-full.bg-surface { background: var(--color-surface); }
.section-full.bg-gradient { background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-warm-light) 50%, var(--color-coral-light) 100%); }

/* --- Speaking list --- */
.speaking-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-md); }
.speaking-item { background: var(--color-surface); border-radius: 8px; padding: var(--space-lg); border-left: 3px solid var(--color-accent); font-size: 0.95rem; color: var(--color-text); transition: all 0.2s ease; }
.speaking-item:hover { border-left-color: var(--color-warm); background: var(--color-accent-light); }

/* --- Footer --- */
.site-footer { border-top: 1px solid var(--color-border); padding: var(--space-2xl) 0; margin-top: var(--space-2xl); text-align: center; }
.footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); }
.footer-links { display: flex; justify-content: center; gap: var(--space-lg); list-style: none; margin-bottom: var(--space-md); flex-wrap: wrap; }
.footer-links a { color: var(--color-muted); font-size: 0.9rem; }
.footer-links a:hover { color: var(--color-accent); }
.footer-note { font-size: 0.85rem; color: var(--color-light); }

/* --- Page Header --- */
.page-header { padding: var(--space-2xl) 0 var(--space-xl); border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-2xl); position: relative; }
.page-header h1 { margin-bottom: var(--space-sm); }
.page-header-decorated { overflow: hidden; }
.page-header-decorated::after { content: ''; position: absolute; top: -30%; right: -10%; width: 400px; height: 400px; background: radial-gradient(circle, var(--color-accent-light) 0%, transparent 60%); opacity: 0.4; pointer-events: none; }

/* --- Decorative Accents --- */
.accent-line { width: 48px; height: 3px; background: linear-gradient(90deg, var(--color-accent), var(--color-warm)); border-radius: 2px; margin-bottom: var(--space-lg); }
.bg-gradient { background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-warm-light) 100%); }

/* --- Blockquote --- */
blockquote { border-left: 3px solid var(--color-accent); padding: var(--space-md) var(--space-xl); margin: var(--space-xl) 0; font-family: var(--font-heading); font-size: 1.15rem; color: var(--color-ink); font-style: italic; background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-accent-light) 100%); border-radius: 0 12px 12px 0; }
blockquote cite { display: block; font-size: 0.85rem; color: var(--color-muted); font-style: normal; margin-top: var(--space-sm); }

/* --- Thesis/list style --- */
.thesis-list { list-style: none; counter-reset: thesis; }
.thesis-list li { counter-increment: thesis; padding: var(--space-md) 0; border-bottom: 1px solid var(--color-border); position: relative; padding-left: 3rem; }
.thesis-list li::before { content: counter(thesis); position: absolute; left: 0; top: var(--space-md); font-family: var(--font-heading); font-size: 1.3rem; font-weight: 700; color: var(--color-accent); opacity: 0.6; }

/* --- Utility --- */
.text-center { text-align: center; }
.text-muted { color: var(--color-muted); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* --- Animations --- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp 0.6s ease both; }
.fade-up:nth-child(2) { animation-delay: 0.1s; }
.fade-up:nth-child(3) { animation-delay: 0.2s; }
.fade-up:nth-child(4) { animation-delay: 0.3s; }
.fade-up:nth-child(5) { animation-delay: 0.4s; }
.fade-up:nth-child(6) { animation-delay: 0.5s; }

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.animated-gradient {
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-warm-light), var(--color-coral-light), var(--color-accent-light));
  background-size: 300% 300%;
  animation: gradientShift 8s ease infinite;
}

/* --- Platform Badges (native apps) --- */
.platform-badges { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: var(--space-md); }
.pbadge { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.01em; padding: 3px 10px; border-radius: 100px; border: 1px solid var(--color-border); color: var(--color-muted); background: var(--color-surface); display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.pbadge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--color-light); flex-shrink: 0; }
.pbadge.live { color: var(--color-accent-dark); background: var(--color-accent-light); border-color: transparent; }
.pbadge.live::before { background: var(--color-accent); }
.pbadge.beta { color: #9a7a1e; background: var(--color-warm-light); border-color: transparent; }
.pbadge.beta::before { background: var(--color-warm); }
.pbadge.soon { color: var(--color-muted); }
.pbadge.soon::before { background: var(--color-light); }

/* --- App Store / web link buttons --- */
.app-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: var(--space-md); }
.app-link { font-size: 0.82rem; font-weight: 600; padding: 7px 15px; border-radius: 8px; border: 1px solid var(--color-border); color: var(--color-text); display: inline-flex; align-items: center; gap: 6px; transition: all 0.2s ease; }
.app-link::after { content: none; }
.app-link:hover { border-color: var(--color-accent); color: var(--color-accent-dark); background: var(--color-accent-light); transform: translateY(-1px); }
.app-link.primary { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.app-link.primary:hover { background: var(--color-accent-dark); color: #fff; }

/* --- App showcase card (larger, for the Apps page) --- */
.app-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: 14px; padding: var(--space-xl); transition: all 0.25s ease; }
.app-card:hover { border-color: var(--color-accent); box-shadow: 0 8px 30px rgba(42, 157, 143, 0.1); transform: translateY(-3px); }
.app-card h3 { margin-bottom: var(--space-xs); }
.app-card .app-oneliner { color: var(--color-muted); font-size: 0.95rem; margin-bottom: var(--space-md); }
.app-card .app-features { list-style: none; margin: var(--space-md) 0 0; padding: 0; }
.app-card .app-features li { position: relative; padding-left: 1.4rem; font-size: 0.9rem; color: var(--color-muted); margin-bottom: var(--space-xs); }
.app-card .app-features li::before { content: '\2713'; position: absolute; left: 0; color: var(--color-accent); font-weight: 700; }

/* --- Featured app (Archive Watch hero card) --- */
.app-hero { background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-surface) 100%); border: 1px solid var(--color-border); border-radius: 16px; padding: var(--space-2xl); position: relative; overflow: hidden; }
.app-hero .card-tag { background: var(--color-bg); }

/* --- Store directory table (Apps page) --- */
.store-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--color-border); border-radius: 14px; background: var(--color-bg); }
.store-table { width: 100%; min-width: 720px; border-collapse: collapse; font-size: 0.88rem; }
.store-table th, .store-table td { padding: 12px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--color-border); }
.store-table thead th { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-muted); background: var(--color-surface); }
.store-table tbody th { font-weight: 600; color: var(--color-text); white-space: nowrap; }
.store-table tbody tr:last-child th, .store-table tbody tr:last-child td { border-bottom: none; }
.store-table td a { font-weight: 500; color: var(--color-accent-dark); }
.store-table td a::after { content: none; }
.store-table td a:hover { text-decoration: underline; }
.store-table .store-none { color: var(--color-light); text-align: center; }