/* ── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0a0a0a;
  --fg:        #F5F5F5;
  --primary:   #b8ff57;
  --secondary: #64ff57;
  --accent:    #9e57ff;
  --muted:     #1a1a1a;
  --muted-fg:  #888;
  --border:    #2a2a2a;
  --card:      #111;
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; }

/* ── Typography ───────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.eyebrow {
  font-family: monospace;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
}

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

/* ── Header / Nav ─────────────────────────────────────────────────────────── */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
header.scrolled {
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(8px);
  border-color: var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-fg);
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--fg); }
.nav-links a.active { color: var(--primary); }
.btn-hire {
  padding: 0.4rem 1rem;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background 0.2s, color 0.2s;
}
.btn-hire:hover { background: var(--primary); color: #000; }

/* Mobile nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--fg);
  font-size: 1.5rem;
  line-height: 1;
}
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem 2rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--fg);
  transition: color 0.2s;
}
.mobile-nav a:hover { color: var(--primary); }
.mobile-nav .btn-hire { text-align: center; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}

/* ── Footer ───────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  margin-top: 6rem;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-inner p {
  font-size: 0.8rem;
  color: var(--muted-fg);
  font-family: monospace;
}
.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}
.footer-links a {
  font-size: 0.8rem;
  color: var(--muted-fg);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--primary); }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  transition: all 0.2s;
  border: none;
}
.btn-primary { background: var(--primary); color: #000; }
.btn-primary:hover { background: #a0e84a; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
}
.btn-outline:hover { border-color: var(--fg); }

/* ── Cards ────────────────────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  transition: border-color 0.25s, transform 0.25s;
}
.card:hover { border-color: var(--primary); transform: translateY(-4px); }

/* ── Tags ─────────────────────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.7rem;
  font-family: monospace;
  border: 1px solid var(--border);
  background: var(--muted);
  color: var(--muted-fg);
}

/* ── Section divider ──────────────────────────────────────────────────────── */
.section-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}
.section-label span {
  font-family: monospace;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted-fg);
  white-space: nowrap;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Fade-in animation ────────────────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Page wrapper ─────────────────────────────────────────────────────────── */
main { padding-top: 96px; padding-bottom: 6rem; }

/* ── Grid helpers ─────────────────────────────────────────────────────────── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero { padding: 4rem 0 6rem; }
.hero-eyebrow { margin-bottom: 1rem; }
.hero-title {
  font-size: clamp(3.5rem, 9vw, 8rem);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 1.5rem;
}
.hero-title .highlight { color: var(--primary); }
.hero-sub {
  font-size: 1.1rem;
  color: var(--muted-fg);
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Big letter stagger */
.big-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(5rem, 18vw, 16rem);
  letter-spacing: -0.05em;
  line-height: 0.85;
  color: rgb(235, 235, 74);
  -webkit-text-stroke: 1px var(--border);
  user-select: none;
  overflow: hidden;
  margin: 3rem 0;
}
.big-name span {
  display: inline-block;
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.big-name span.in {
  opacity: 1;
  transform: translateY(0);
}

/* ── Skills strip ─────────────────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--border);
  margin-top: 4rem;
}
.skill-col {
  background: var(--bg);
  padding: 2rem 1.5rem;
}
.skill-col h4 {
  font-size: 0.7rem;
  font-family: monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 1rem;
}
.skill-col ul { list-style: none; }
.skill-col li {
  font-size: 0.875rem;
  color: var(--muted-fg);
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--border);
}
.skill-col li:last-child { border: none; }

/* ── Project card ─────────────────────────────────────────────────────────── */
.project-card { padding: 1.75rem; }
.project-card .status {
  display: inline-block;
  font-size: 0.65rem;
  font-family: monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--primary);
  color: var(--primary);
  margin-bottom: 1rem;
}
.project-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.project-card p {
  font-size: 0.875rem;
  color: var(--muted-fg);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.25rem; }
.project-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.project-actions a {
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--muted-fg);
  transition: all 0.2s;
}
.project-actions a:hover { border-color: var(--primary); color: var(--primary); }

/* Category filter */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}
.filter-btn {
  padding: 0.4rem 1rem;
  font-size: 0.75rem;
  font-family: monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted-fg);
  transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--primary);
  color: var(--primary);
}

/* ── Stats row ────────────────────────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  margin: 3rem 0;
}
@media (min-width: 640px) {
  .stats-row { grid-template-columns: repeat(4, 1fr); }
}
.stat-cell {
  background: var(--bg);
  padding: 2.5rem 1rem;
  text-align: center;
}
.stat-cell .val {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.03em;
  line-height: 1;
  display: block;
  margin-bottom: 0.4rem;
}
.stat-cell .lbl {
  font-family: monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-fg);
}

/* ── Skill bars ───────────────────────────────────────────────────────────── */
.skill-bar-group { margin-bottom: 2.5rem; }
.skill-bar-group h4 {
  font-family: monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-fg);
  margin-bottom: 1rem;
}
.skill-bar-item { margin-bottom: 1rem; }
.skill-bar-item .sb-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  font-family: monospace;
  margin-bottom: 0.4rem;
}
.skill-bar-item .sb-label span:last-child { color: var(--muted-fg); }
.sb-track {
  height: 1px;
  background: var(--border);
  overflow: hidden;
}
.sb-fill {
  height: 100%;
  background: var(--primary);
  width: 0;
  transition: width 0.8s ease;
}

/* ── Interest tags ────────────────────────────────────────────────────────── */
.interest-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }
.interest-tag {
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-family: monospace;
  border: 1px solid var(--border);
  color: var(--muted-fg);
  transition: all 0.2s;
}
.interest-tag:hover { border-color: var(--primary); color: var(--primary); }

/* ── CTA banner ───────────────────────────────────────────────────────────── */
.cta-banner {
  border: 1px dashed var(--border);
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 4rem;
}
.cta-banner h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.cta-banner p { font-size: 0.875rem; color: var(--muted-fg); max-width: 400px; }

/* ── Contact form ─────────────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.5rem; }
.form-group label {
  font-family: monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-fg);
}
.form-group input,
.form-group textarea {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--primary); }
.form-group textarea { resize: vertical; min-height: 140px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.chip-group { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-family: monospace;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted-fg);
  transition: all 0.2s;
}
.chip:hover, .chip.selected {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(184,255,87,0.06);
}

.form-error {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(255,80,80,0.4);
  background: rgba(255,80,80,0.05);
  color: #ff5050;
  font-size: 0.8rem;
  margin-bottom: 1rem;
}
.form-success {
  padding: 2.5rem;
  border: 1px solid var(--primary);
  background: rgba(184,255,87,0.04);
}
.form-success h3 { font-size: 1.25rem; margin: 0.75rem 0 0.5rem; }
.form-success p { font-size: 0.875rem; color: var(--muted-fg); }
.form-success .reset-btn {
  margin-top: 1rem;
  background: none;
  border: none;
  color: var(--primary);
  font-size: 0.8rem;
  font-family: monospace;
  text-decoration: underline;
}

/* Contact links */
.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  transition: border-color 0.2s;
}
.contact-link:hover { border-color: var(--primary); }
.contact-link .cl-label {
  font-family: monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-fg);
  margin-bottom: 0.2rem;
}
.contact-link .cl-handle {
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}
.contact-link:hover .cl-handle { color: var(--primary); }

/* ── Learner ──────────────────────────────────────────────────────────────── */
.folder-card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 1.75rem;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.25s, transform 0.25s;
  text-decoration: none;
  color: inherit;
}
.folder-card:hover { transform: translateY(-6px); }
.folder-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.2rem;
}
.folder-card h2 { font-size: 1.2rem; margin-bottom: 0.4rem; transition: color 0.2s; }
.folder-card p { font-size: 0.8rem; color: var(--muted-fg); line-height: 1.5; }
.folder-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.5rem;
}
.folder-footer span { font-family: monospace; font-size: 0.7rem; color: var(--muted-fg); }
.folder-add {
  border: 1px dashed var(--border);
  background: var(--card);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.75rem;
  text-align: center;
}
.folder-add p { font-family: monospace; font-size: 0.75rem; color: var(--muted-fg); line-height: 1.6; }
.folder-add code { color: var(--fg); }

/* Video card */
.video-card {
  background: var(--card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s;
  text-decoration: none;
  color: inherit;
  display: block;
}
.video-card:hover { transform: translateY(-5px); }
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--muted);
  overflow: hidden;
}
.video-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.play-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.45);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.video-card:hover .play-overlay { opacity: 1; }
.play-btn {
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.duration-badge {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.75);
  padding: 0.15rem 0.45rem;
  font-family: monospace;
  font-size: 0.65rem;
  color: rgba(255,255,255,0.9);
}
.video-body { padding: 1.25rem; }
.video-body h3 { font-size: 0.9rem; margin-bottom: 0.75rem; transition: color 0.2s; }
.video-card:hover .video-body h3 { color: var(--primary); }
.video-add {
  border: 1px dashed var(--border);
  background: var(--card);
  aspect-ratio: 16/9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.5rem;
  text-align: center;
}
.video-add p { font-family: monospace; font-size: 0.7rem; color: var(--muted-fg); line-height: 1.6; }
.video-add code { color: var(--fg); }

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--muted-fg);
  margin-bottom: 2.5rem;
  transition: color 0.2s;
}
.back-link:hover { color: var(--fg); }

/* ── Spinner ──────────────────────────────────────────────────────────────── */
.spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(0,0,0,0.3);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .cta-banner { flex-direction: column; }
  .big-name { font-size: clamp(4rem, 22vw, 8rem); }
}