/* ── Variables ── */
:root {
  --bg:      #090e14;
  --surface: #0d1520;
  --card:    #111c2b;
  --border:  #1e3050;
  --accent:  #00d4ff;
  --accent2: #f5c518;
  --green:   #00ff9d;
  --text:    #c8dff5;
  --muted:   #5a7a9a;
  --mono:    'Share Tech Mono', monospace;
  --body:    'Outfit', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Grid background ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ── Canvas ── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
}

/* ── Layout ── */
main { position: relative; z-index: 1; }

section {
  padding: 80px 24px;
  max-width: 900px;
  margin: 0 auto;
}

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9,14,20,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 15px;
  letter-spacing: 2px;
}

.nav-links { display: flex; gap: 28px; }

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--accent); }

/* ── Hero ── */
.hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.25);
  border-radius: 20px;
  padding: 6px 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 32px;
  width: fit-content;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

h1 span { color: var(--accent); }

.hero-desc {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 40px;
  font-weight: 300;
}

.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover {
  background: #33ddff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,212,255,0.25);
}

.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ── Stats ── */
.stats {
  display: flex;
  gap: 40px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.stat-val {
  font-family: var(--mono);
  font-size: 1.8rem;
  color: var(--accent);
  display: block;
}

.stat-label {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── Section labels ── */
.section-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.section-sub {
  color: var(--muted);
  font-weight: 300;
  margin-bottom: 48px;
  max-width: 560px;
}

/* ── Steps ── */
.steps { display: grid; gap: 2px; }

.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  transition: border-color 0.2s, background 0.2s;
}

.step:first-child { border-radius: 10px 10px 0 0; }
.step:last-child  { border-radius: 0 0 10px 10px; }
.step:hover { border-color: var(--accent); background: #141f30; }

.step-num {
  font-family: var(--mono);
  font-size: 1.4rem;
  color: var(--accent);
  opacity: 0.5;
  padding-top: 2px;
}

.step-title { font-weight: 600; margin-bottom: 6px; font-size: 1rem; }
.step-desc { color: var(--muted); font-size: 0.9rem; font-weight: 300; }

/* ── Components grid ── */
.comp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.comp-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  transition: border-color 0.2s, transform 0.2s;
}

.comp-card:hover { border-color: var(--accent2); transform: translateY(-3px); }

.comp-icon { font-size: 1.6rem; margin-bottom: 10px; display: block; }
.comp-name { font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.comp-qty  { font-family: var(--mono); font-size: 12px; color: var(--accent2); }

/* ── Circuit ── */
.circuit-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  overflow-x: auto;
}

.circuit-wrap svg { width: 100%; height: auto; }

/* ── Code block ── */
.code-wrap {
  background: #060c13;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

.code-dots { display: flex; gap: 6px; }

.code-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-title { font-family: var(--mono); font-size: 12px; color: var(--muted); }

.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover { border-color: var(--accent); color: var(--accent); }

pre {
  padding: 28px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
  color: #a8c8e8;
}

/* Code syntax colors */
.kw  { color: #c792ea; }
.fn  { color: #82aaff; }
.cm  { color: #546e7a; font-style: italic; }
.str { color: #c3e88d; }
.num { color: var(--accent2); }
.pp  { color: #f78c6c; }

/* ── Terminal ── */
.terminal {
  background: #060c13;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.term-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.term-title { font-family: var(--mono); font-size: 12px; color: var(--muted); }

.term-body {
  padding: 24px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 2;
}

.t-green  { color: var(--green); }
.t-cyan   { color: var(--accent); }
.t-yellow { color: var(--accent2); }
.t-muted  { color: var(--muted); }

/* ── Pros / Cons ── */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.pc-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.pc-title {
  font-weight: 700;
  margin-bottom: 20px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pc-title.pro { color: var(--green); }
.pc-title.con { color: #ff6b6b; }

.pc-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }

.pc-list li {
  display: flex;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
  align-items: flex-start;
}

.pc-list li::before { flex-shrink: 0; margin-top: 2px; font-size: 14px; }
.pros .pc-list li::before { content: '✓'; color: var(--green); }
.cons .pc-list li::before { content: '✗'; color: #ff6b6b; }

/* ── Setup ── */
.setup-steps { display: flex; flex-direction: column; }

.setup-step {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

.setup-step:last-child { border-bottom: none; }

.ss-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0,212,255,0.1);
  border: 1px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
}

.ss-text { font-size: 0.95rem; padding-top: 4px; }
.ss-text strong { color: var(--text); font-weight: 600; }
.ss-text span   { color: var(--muted); }

code {
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 4px;
  padding: 1px 7px;
  font-family: var(--mono);
  font-size: 0.85em;
  color: var(--accent);
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 1px;
  position: relative;
  z-index: 1;
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible { opacity: 1; transform: none; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .pros-cons       { grid-template-columns: 1fr; }
  .nav-links       { gap: 16px; }
  .nav-links a     { font-size: 11px; }
  .stats           { gap: 24px; }
}

/* ── Footer team ── */
.footer-team {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.05em;
}