/* Sidedoor Digital — 2040 build log aesthetic
   Design language: a systems readout, not a billboard. Blueprint grid,
   monospace status lines, route-style navigation. Built like the things
   we ship: plain, fast, no decoration that doesn't carry information. */

:root {
  --bg: #0b0e14;
  --bg-elevated: #11151d;
  --bg-elevated-2: #161b25;
  --line: #1e2530;
  --line-strong: #2c3544;
  --text: #e8edf2;
  --text-muted: #8b95a1;
  --text-faint: #565f6c;
  --signal: #5ee6d0;
  --signal-dim: rgba(94, 230, 208, 0.1);
  --pulse: #ff6b5c;
  --pulse-dim: rgba(255, 107, 92, 0.1);

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --container: 1120px;
  --radius: 6px;
  --gap: 1.5rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--signal); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; color: var(--text-muted); }
p.lead { font-size: 1.15rem; color: var(--text); }

.mono {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--signal);
  text-transform: lowercase;
  margin-bottom: 0.75rem;
}
.eyebrow::before { content: "//"; color: var(--text-faint); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* keyboard focus, always visible */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 14, 20, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--text);
}
.nav-logo:hover { text-decoration: none; }
.nav-links {
  display: flex;
  gap: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a { color: var(--text-muted); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--signal); text-decoration: none; }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  color: var(--text);
  border-radius: var(--radius);
  padding: 0.4rem 0.6rem;
  font-family: var(--font-mono);
  cursor: pointer;
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 0.75rem 1.5rem; border-top: 1px solid var(--line); }
  .nav-links li:first-child { border-top: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, color 0.15s;
}
.btn:hover { text-decoration: none; border-color: var(--signal); box-shadow: 0 0 0 1px var(--signal-dim), 0 0 24px var(--signal-dim); }
.btn-primary { border-color: var(--signal); color: var(--signal); }
.btn-primary:hover { box-shadow: 0 0 0 1px var(--signal-dim), 0 0 28px var(--signal-dim); }
.btn-row { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.75rem; }

/* ---------- sections ---------- */
.section { padding: 5.5rem 0; border-bottom: 1px solid var(--line); }
.section:last-of-type { border-bottom: none; }
.section-head { max-width: 640px; margin-bottom: 3rem; }

/* ---------- hero ---------- */
.hero { padding: 5rem 0 4rem; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: start;
}
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
}

/* ---------- terminal panel (signature element) ---------- */
.terminal {
  background: var(--bg-elevated-2);
  border: 1px solid var(--line-strong);
  border-left: 2px solid var(--signal);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  box-shadow: 0 0 40px rgba(94, 230, 208, 0.06);
}
.terminal-head {
  display: flex;
  justify-content: space-between;
  color: var(--text-faint);
  font-size: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}
.terminal-line {
  display: flex;
  gap: 0.6rem;
  padding: 0.3rem 0;
  opacity: 0;
  animation: lineIn 0.4s ease forwards;
}
.terminal-line .tag { min-width: 64px; }
.tag-live { color: var(--signal); }
.tag-build { color: var(--pulse); }
.terminal-line .what { color: var(--text-muted); }
.cursor {
  display: inline-block;
  width: 7px;
  height: 14px;
  background: var(--signal);
  margin-left: 2px;
  animation: blink 1s step-end infinite;
  vertical-align: middle;
}

@keyframes lineIn { to { opacity: 1; } }
@keyframes blink { 50% { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .terminal-line { animation: none; opacity: 1; }
  .cursor { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- cards ---------- */
.grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.card-icon { color: var(--signal); margin-bottom: 1rem; }
.card h3 { margin-bottom: 0.5rem; }
.card p { margin-bottom: 0; font-size: 0.95rem; }

/* status tags on work cards */
.status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: 100px;
  margin-bottom: 0.85rem;
}
.status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; }
.status-live { color: var(--signal); background: var(--signal-dim); }
.status-live::before { background: var(--signal); }
.status-build { color: var(--pulse); background: var(--pulse-dim); }
.status-build::before { background: var(--pulse); animation: blink 1.4s step-end infinite; }

/* ---------- process strip (how we work) ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--gap);
  counter-reset: step;
}
.step { border-top: 1px solid var(--line-strong); padding-top: 1.25rem; }
.step-index {
  font-family: var(--font-mono);
  color: var(--text-faint);
  font-size: 0.8rem;
  display: block;
  margin-bottom: 0.6rem;
}

/* ---------- pricing ---------- */
.price-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  gap: 1rem;
}
.price-row:last-child { border-bottom: none; }
.price-row .amount { font-family: var(--font-mono); color: var(--signal); white-space: nowrap; }

/* ---------- form ---------- */
.field { margin-bottom: 1.25rem; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.field input, .field textarea, .field select {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.7rem 0.9rem;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--signal); }
.form-note { font-size: 0.85rem; color: var(--text-faint); margin-top: 1rem; }
#form-status { font-family: var(--font-mono); font-size: 0.9rem; margin-top: 1rem; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 3rem 0;
}
.footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-routes { display: flex; gap: 1.5rem; font-family: var(--font-mono); font-size: 0.85rem; flex-wrap: wrap; }
.footer-routes a { color: var(--text-muted); }
.footer small { color: var(--text-faint); display: block; margin-top: 0.5rem; }

/* fade-in on scroll */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}