/* ════════════════════════════════════════════════════════════════════════════
   INDEX.CSS — Homepage-specific styles
   ════════════════════════════════════════════════════════════════════════════ */

/* ── Terminal Box ──────────────────────────────────────────────────────────── */
.terminal {
  background: var(--bg-terminal);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow:
    0 0 0 var(--border-w) rgba(255,255,255,0.06),
    0 0.625rem 2.5rem rgba(0,0,0,0.3),
    0 1.25rem 5rem rgba(0,0,0,0.2);
  font-family: var(--font-mono);
  max-width: 100%;
  margin: 0 auto;
  opacity: 0;
  animation: fadeUp var(--anim-reveal) 0.1s;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.25rem;
  background: rgba(255,255,255,0.05);
  border-bottom: var(--border-w) solid rgba(255,255,255,0.08);
}

.dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
}
.dot-red { background: #ff5f57; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #28c840; }

.terminal-title {
  font-size: 0.6875rem;
  color: rgba(255,255,255,0.3);
  margin-left: 0.625rem;
  letter-spacing: 0.05em;
}

.terminal-body {
  padding: 1.75rem 2rem 2.25rem;
  min-height: 18.75rem;
}

.term-line {
  font-size: 0.8125rem;
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: break-word;
  opacity: 0;
  transform: translateY(0.25rem);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.term-line.visible {
  opacity: 1;
  transform: translateY(0);
}

.term-line.cmd { color: var(--term-cmd); }
.term-line.data { color: var(--term-data); }
.term-line.meta { color: var(--term-dim); }
.term-line.divider { color: var(--term-dim); opacity: 0; }
.term-line.divider.visible { opacity: 0.3; }
.term-line.welcome { color: var(--term-green); font-weight: 500; font-size: 0.875rem; }
.term-line.desc { color: var(--term-desc); }
.term-line.nav { color: var(--term-link); }
.term-line.empty { color: transparent; user-select: none; height: 1.2em; }

/* Link inside nav lines (injected by index.js) */
.term-nav-link {
  color: inherit;
  border-bottom: var(--border-w) solid var(--term-link);
}

.cursor {
  display: inline-block;
  width: 0.5rem;
  height: 0.9375rem;
  background: var(--term-cursor);
  vertical-align: middle;
  margin-left: 0.125rem;
  animation: blink 1s step-end infinite;
  box-shadow: 0 0 0.5rem var(--term-cursor);
}

/* ── Terminal Input ────────────────────────────────────────────────────────── */

/* Hidden <input> — captures keystrokes, never rendered on screen.
   position:absolute in document space so iOS scrolls to the active terminal
   row (set by focusAtRow()) rather than an off-screen coordinate. */
.term-hidden-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  border: none;
  outline: none;
  pointer-events: none;
  background: transparent;
  color: transparent;
}

/* Input prompt row */
.term-input-row {
  display: flex;
  align-items: center;
}

.term-input-prompt,
.term-input-typed {
  color: var(--term-cmd);
  white-space: pre;
}

/* Ghost/autocomplete suggestion — inline hint overlapping the cursor.
   Negative margin pulls the text left by the cursor's width so the
   first ghost character starts at the cursor's left edge.
   color-mix() derives the dim color from --term-cmd (which shared.css
   already adjusts per theme), so no separate dark-mode override is needed. */
.term-input-ghost {
  color: color-mix(in srgb, var(--term-cmd) 28%, transparent);
  white-space: pre;
}
.term-input-ghost:not(:empty) {
  margin-left: -0.5rem; /* = .cursor width; aligns ghost under cursor */
}

.term-line.err { color: var(--color-error); }

/* ── Mobile Tab button ─────────────────────────────────────────────────────── */

/* ── Section Grid ──────────────────────────────────────────────────────────── */
.sections {
  margin: 3.75rem 0 3.75rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.0625rem;
  background: var(--border);
  border: var(--border-w) solid var(--border);
  border-radius: 0.75rem;
  overflow: hidden;
  opacity: 0;
  animation: fadeIn 0.8s var(--anim-ease) 0.3s forwards;
}

.section-card {
  background: var(--bg);
  padding: 2.25rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  transition: all var(--transition);
  opacity: 0;
  animation: fadeUp var(--anim-reveal);
}

.section-card:nth-child(1) { animation-delay: 0.35s; }
.section-card:nth-child(2) { animation-delay: 0.40s; }
.section-card:nth-child(3) { animation-delay: 0.45s; }
.section-card:nth-child(4) { animation-delay: 0.50s; }

.section-card:hover {
  background: var(--bg-raised);
}

.card-icon {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-faint);
  letter-spacing: 0.08em;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
}

.card-arrow {
  margin-top: 2rem;
  font-size: 1.125rem;
  color: var(--text-faint);
  transition: transform var(--transition), color var(--transition);
}
.section-card:hover .card-arrow {
  transform: translateX(0.375rem);
  color: var(--text-muted);
}

/* ── Hero layout helpers (replaces inline styles in index.html) ───────────── */
.hero-spacer {
  padding-top: 3rem;
}

.hero-header {
  padding: 0;
  margin-bottom: 3.25rem;
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 64rem) {
  .sections {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 40rem) {
  .terminal {
    border-radius: 0.5rem;
  }
  .terminal-body {
    padding: 1.25rem;
    min-height: 16.25rem;
  }
  .sections {
    grid-template-columns: 1fr;
    margin-top: 4rem;
  }
  .section-card {
    padding: 1.75rem;
  }
}