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

:root {
  --bg:       #07090f;
  --bg-2:     #0b0e17;
  --bg-3:     #0f1421;
  --bg-card:  rgba(11,14,23,0.92);
  --border:   rgba(255,255,255,0.065);
  --border-g: rgba(74,222,128,0.2);
  --border-g2:rgba(74,222,128,0.1);
  --green:    #4ade80;
  --green-d:  #22c55e;
  --glow:     rgba(74,222,128,0.1);
  --glow-sm:  rgba(74,222,128,0.06);
  --text:     #edf0ff;
  --text-2:   #c8d0e8;
  --muted:    #4f5f7a;
  --muted-2:  #7d8eaa;
  --radius:   10px;
  --r-sm:     7px;
  --r-xs:     5px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
}

body::after {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(74,222,128,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74,222,128,.022) 1px, transparent 1px);
  background-size: 52px 52px;
}

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 52px;
  display: flex; align-items: center;
  padding: 0 max(1.5rem, 4vw);
  background: rgba(7,9,15,0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-weight: 800; font-size: .92rem; letter-spacing: -.025em;
  color: var(--text); text-decoration: none; margin-right: auto;
}
.nav-logo .g { color: var(--green); }
.nav-links {
  display: flex; gap: 1.75rem; list-style: none; margin-right: 1.5rem;
}
.nav-links a {
  text-decoration: none; color: var(--muted-2);
  font-size: .78rem; font-weight: 500; letter-spacing: .01em;
  transition: color .15s;
}
.nav-links a:hover { color: var(--text); }
.nav-back {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: .75rem; font-weight: 500; color: var(--muted-2);
  text-decoration: none; transition: color .15s;
}
.nav-back:hover { color: var(--green); }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; gap: .38rem;
  padding: .4rem .95rem;
  border-radius: var(--r-sm);
  font-size: .78rem; font-weight: 600;
  text-decoration: none; cursor: pointer;
  transition: all .16s; border: none; font-family: inherit;
  white-space: nowrap;
}
.btn-green  { background: var(--green); color: #020d02; letter-spacing: -.01em; }
.btn-green:hover { background: #72ebb0; box-shadow: 0 0 18px rgba(74,222,128,.32); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border-g);
  color: var(--green);
}
.btn-outline:hover { background: var(--glow); transform: translateY(-1px); }
.btn-ghost {
  background: rgba(255,255,255,.035);
  border: 1px solid var(--border);
  color: var(--muted-2);
}
.btn-ghost:hover { background: rgba(255,255,255,.07); color: var(--text); transform: translateY(-1px); }

/* HAMBURGER */
.hamburger { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 2px; }
.hamburger span { display: block; width: 20px; height: 1.5px; background: var(--text); border-radius: 2px; transition: all .2s; }

/* LAYOUT */
.wrap {
  position: relative; z-index: 1;
  max-width: 1100px; margin: 0 auto;
  padding-left: max(1.5rem, 4vw);
  padding-right: max(1.5rem, 4vw);
}

.sec { padding: 44px 0; position: relative; z-index: 1; }
.sec-alt {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.sec-label {
  display: inline-flex; align-items: center; gap: .4rem;
  color: var(--green); font-size: .67rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; margin-bottom: .6rem;
}
h2.sec-title {
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 800; letter-spacing: -.032em; line-height: 1.14;
  margin-bottom: .45rem;
}
.sec-sub {
  color: var(--muted-2); font-size: .85rem; line-height: 1.65;
  max-width: 460px; margin-bottom: 1.75rem;
}

/* PAGE HEADER (shared by projects/tutorial) */
.page-header { margin-bottom: 2rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--border); }
.page-header-top { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: .75rem; }
.page-label { display: inline-flex; align-items: center; gap: .4rem; color: var(--green); font-size: .67rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; margin-bottom: .45rem; }
.page-title { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.15; }
.page-sub { color: var(--muted-2); font-size: .82rem; margin-top: .3rem; }
.page-meta { font-size: .67rem; color: var(--muted); margin-top: .25rem; }

/* SHARED BADGES */
.badge {
  display: inline-flex; align-items: center; gap: .28rem;
  border-radius: 100px; padding: .22rem .6rem;
  font-size: .65rem; font-weight: 700; letter-spacing: .04em;
}
.badge .bd { width: 4px; height: 4px; border-radius: 50%; flex-shrink: 0; }
.badge-done { background: rgba(74,222,128,.08); border: 1px solid rgba(74,222,128,.2); color: var(--green); }
.badge-done .bd { background: var(--green); }
.badge-progress { background: rgba(251,191,36,.07); border: 1px solid rgba(251,191,36,.2); color: #fbbf24; }
.badge-progress .bd { background: #fbbf24; }
.badge-retainer { background: rgba(139,92,246,.08); border: 1px solid rgba(139,92,246,.25); color: #a78bfa; }
.badge-retainer .bd { background: #a78bfa; }
.badge-queue { background: rgba(148,163,184,.07); border: 1px solid rgba(148,163,184,.18); color: #94a3b8; display: inline-flex; align-items: center; gap: .28rem; border-radius: 100px; padding: .2rem .55rem; font-size: .63rem; font-weight: 700; letter-spacing: .04em; white-space: nowrap; }
.badge-queue .bd { width: 4px; height: 4px; border-radius: 50%; background: #94a3b8; flex-shrink: 0; }

/* PRINT BUTTON */
.print-btn {
  display: inline-flex; align-items: center; gap: .35rem;
  background: rgba(255,255,255,.035); border: 1px solid var(--border);
  border-radius: var(--r-sm); padding: .38rem .85rem;
  font-size: .75rem; font-weight: 600; color: var(--muted-2);
  cursor: pointer; transition: all .16s; font-family: inherit;
}
.print-btn:hover { background: rgba(255,255,255,.07); color: var(--text); border-color: var(--border-g); }

/* SHARED TABLE */
table { width: 100%; border-collapse: collapse; }
thead tr { background: rgba(255,255,255,.02); }
thead th {
  padding: .55rem 1.25rem;
  text-align: left;
  font-size: .63rem; font-weight: 700;
  color: var(--muted); letter-spacing: .1em; text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
thead th.tc { text-align: center; }
tbody tr { border-bottom: 1px solid var(--border); transition: background .14s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(74,222,128,.02); }
td { padding: .8rem 1.25rem; font-size: .8rem; color: var(--text-2); vertical-align: top; }

/* FOOTER */
footer { border-top: 1px solid var(--border); padding: 1.1rem max(1.5rem,4vw); position: relative; z-index: 1; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .65rem; }
.f-brand { font-weight: 800; font-size: .88rem; letter-spacing: -.02em; }
.f-brand .g { color: var(--green); }
.f-sub { font-size: .67rem; color: var(--muted); margin-top: .1rem; }
.f-right { font-size: .67rem; color: var(--muted); }

/* SCROLL REVEAL */
.rv { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.rv.in { opacity: 1; transform: none; }

/* RESPONSIVE NAV */
@media (max-width: 720px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-cta-btn { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: .9rem;
    position: fixed; top: 52px; left: 0; right: 0;
    background: rgba(7,9,15,.97); border-bottom: 1px solid var(--border);
    padding: 1.1rem max(1.5rem,4vw); z-index: 99;
  }
}

@media (max-width: 720px) {
  /* Kill expensive GPU ops on mobile */
  body::after { display: none; }
  nav { backdrop-filter: none; background: rgba(7,9,15,.98); }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
  .ring-wrap::before { animation: none; background: var(--green); }
}

@media print {
  nav, .print-btn, .nav-back { display: none !important; }
  body { background: #fff; color: #111; }
  body::after { display: none; }
  .wrap { padding-top: 1.5rem; }
}