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

/* ─── TOKENS ─────────────────────────────────────────────────────────────── */
:root {
  --bg:      #0d1117;
  --surface: #161b22;
  --surface2: #1e2530;
  --border:  #30363d;
  --accent:  #00c8ff;
  --accent2: #7c3aed;
  --green:   #3fb950;
  --red:     #f85149;
  --yellow:  #e3b341;
  --text:    #e6edf3;
  --muted:   #8b949e;
  --radius:  10px;
}

html, body {
  min-height: 100%;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* ─── NAV ────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 60px;
  background: rgba(13,17,23,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 40px; gap: 12px;
}

.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.nav-logo svg { width: 28px; height: 28px; }
.nav-title {
  font-size: 18px; font-weight: 800;
  color: var(--text); letter-spacing: -.3px;
}
.nav-title span { color: var(--accent); }

.nav-badge {
  background: rgba(0,200,255,.12);
  color: var(--accent);
  font-size: 11px; font-weight: 700;
  padding: 2px 8px; border-radius: 20px;
  border: 1px solid rgba(0,200,255,.25);
}

.nav-right {
  margin-left: auto;
  display: flex; align-items: center; gap: 8px;
}

.nav-tag {
  font-size: 12px; color: var(--muted);
  padding: 4px 12px; border-radius: 20px;
  border: 1px solid var(--border);
}

/* ─── HERO ───────────────────────────────────────────────────────────────── */
.hero {
  padding: 140px 40px 80px;
  max-width: 1100px; margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 420px;
  align-items: center;
  gap: 60px;
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--accent);
  background: rgba(0,200,255,.08);
  border: 1px solid rgba(0,200,255,.2);
  padding: 5px 12px; border-radius: 20px;
  margin-bottom: 20px;
}
.hero-eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .4; transform: scale(.8); }
}

.hero-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}
.hero-title .accent { color: var(--accent); }
.hero-title .accent2 { color: #a78bfa; }

.hero-desc {
  font-size: 17px; color: var(--muted);
  line-height: 1.7; max-width: 520px;
  margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }

.btn-hero-main {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  padding: 16px 32px;
  border-radius: var(--radius);
  text-decoration: none;
  letter-spacing: -.2px;
  box-shadow: 0 0 28px rgba(0,200,255,.35), 0 0 8px rgba(124,58,237,.25);
  transition: box-shadow .2s, transform .2s;
  animation: glow-pulse 2.5s ease-in-out infinite;
}
.btn-hero-main span {
  opacity: .85;
  font-weight: 700;
  font-size: 14px;
}
.btn-hero-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 42px rgba(0,200,255,.55), 0 0 16px rgba(124,58,237,.4);
}
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 28px rgba(0,200,255,.35), 0 0 8px rgba(124,58,237,.25); }
  50%       { box-shadow: 0 0 48px rgba(0,200,255,.6),  0 0 20px rgba(124,58,237,.45); }
}

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #000;
  font-size: 14px; font-weight: 700;
  padding: 12px 24px; border-radius: var(--radius);
  text-decoration: none; transition: opacity .15s, transform .15s;
  border: none; cursor: pointer;
}
.btn-primary:hover { opacity: .88; transform: translateY(-1px); }

.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); color: var(--text);
  font-size: 14px; font-weight: 600;
  padding: 12px 24px; border-radius: var(--radius);
  text-decoration: none; transition: all .15s;
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* Hero visual */
.hero-visual {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,.4);
}

.hero-visual-bar {
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  display: flex; align-items: center; gap: 8px;
}
.hero-visual-dots { display: flex; gap: 6px; }
.hero-visual-dots span { width: 11px; height: 11px; border-radius: 50%; }
.d-red    { background: #ff5f57; }
.d-yellow { background: #febc2e; }
.d-green  { background: #28c840; }
.hero-visual-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--muted); margin-left: 4px;
}

.hero-visual-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; line-height: 1.7;
  padding: 20px;
  color: var(--text);
}
.hero-visual-heading {
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.c-comment { color: #6e7681; }
.c-kw      { color: #ff7b72; }
.c-fn      { color: #d2a8ff; }
.c-str     { color: #a5d6ff; }
.c-var     { color: #ffa657; }
.c-num     { color: #79c0ff; }
.c-out     { color: var(--green); }

/* ─── STATS ──────────────────────────────────────────────────────────────── */
.stats {
  max-width: 1100px; margin: 0 auto;
  padding: 0 40px 80px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.stat-value {
  font-size: 32px; font-weight: 800;
  color: var(--accent); letter-spacing: -1px;
  margin-bottom: 4px;
}
.stat-label { font-size: 13px; color: var(--muted); }

/* ─── MODULES ────────────────────────────────────────────────────────────── */
.modules-section {
  max-width: 1100px; margin: 0 auto;
  padding: 0 40px 100px;
}

.section-header { margin-bottom: 32px; }
.section-eyebrow {
  font-size: 11px; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 10px;
}
.section-title {
  font-size: 28px; font-weight: 700; letter-spacing: -.5px;
}
.section-desc {
  font-size: 15px; color: var(--muted);
  line-height: 1.6; margin-top: 8px; max-width: 580px;
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  display: flex; flex-direction: column; gap: 16px;
  transition: border-color .2s, transform .2s;
  position: relative; overflow: hidden;
}
.module-card:hover:not(.locked) {
  border-color: rgba(0,200,255,.35);
  transform: translateY(-3px);
}
.module-card.locked { opacity: .55; }

.module-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,200,255,.04) 0%, transparent 60%);
  pointer-events: none;
}

.module-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.icon-python   { background: rgba(0,200,255,.12); }
.icon-network  { background: rgba(63,185,80,.12); }
.icon-ad       { background: rgba(124,58,237,.12); }
.icon-pentest  { background: rgba(248,81,73,.12); }
.icon-linux    { background: rgba(227,179,65,.12); }
.icon-crypto   { background: rgba(0,200,255,.12); }

.module-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }

.module-status {
  font-size: 10px; font-weight: 700; letter-spacing: .5px;
  text-transform: uppercase; padding: 3px 9px; border-radius: 20px;
  flex-shrink: 0; margin-top: 2px;
}
.status-active   { background: rgba(0,200,255,.12); color: var(--accent); border: 1px solid rgba(0,200,255,.2); }
.status-soon     { background: rgba(63,185,80,.08); color: var(--green); border: 1px solid rgba(63,185,80,.15); }
.status-planned  { background: rgba(139,148,158,.08); color: var(--muted); border: 1px solid var(--border); }

.module-title { font-size: 17px; font-weight: 700; }
.module-desc  { font-size: 13px; color: var(--muted); line-height: 1.6; }

.module-topics {
  display: flex; flex-wrap: wrap; gap: 6px;
  list-style: none;
}
.module-topics li {
  font-size: 11px; color: var(--muted);
  background: var(--surface2);
  padding: 3px 8px; border-radius: 6px;
  border: 1px solid var(--border);
}

.module-footer { margin-top: auto; }

.btn-module {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent); color: #000;
  font-size: 13px; font-weight: 700;
  padding: 9px 18px; border-radius: 8px;
  text-decoration: none; transition: opacity .15s;
  width: 100%; justify-content: center;
}
.btn-module:hover { opacity: .85; }

.btn-module-disabled {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--surface2); color: var(--muted);
  font-size: 13px; font-weight: 600;
  padding: 9px 18px; border-radius: 8px;
  width: 100%; border: 1px solid var(--border);
  cursor: not-allowed;
}

/* ─── FOOTER ─────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 40px;
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1100px; margin: 0 auto;
}
.footer-left { font-size: 13px; color: var(--muted); }
.footer-left span { color: var(--accent); font-weight: 600; }
.footer-right { font-size: 12px; color: #4a5568; }