/* ============================================================
   Features page — specific styles
   Extends styles.css
   ============================================================ */

/* ── Page hero ─────────────────────────────────────────────── */
.page-hero {
  padding: calc(var(--nav-h) + 80px) 0 24px;
  text-align: center;
  position: relative;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(0, 212, 126, 0.07) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero-title {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 16px 0 20px;
}
.page-hero-sub {
  font-size: 18px;
  color: var(--text-2);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Feature deep section ──────────────────────────────────── */
.feature-deep { border-top: 1px solid var(--border); }
.section-divider + .feature-deep { border-top: none; }
.feature-deep-alt { background: var(--bg-2); }

.feature-deep-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.feature-deep-reverse { direction: rtl; }
.feature-deep-reverse > * { direction: ltr; }

.feature-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-dim);
  border: 1px solid rgba(0, 212, 126, 0.2);
  border-radius: 100px;
  padding: 4px 10px;
  margin-bottom: 20px;
}

.feature-deep-copy h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.feature-deep-copy p {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 28px;
}
.feature-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feature-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
}
.feature-bullets li::before {
  content: '';
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brand);
  margin-top: 7px;
  flex-shrink: 0;
}
.feature-bullets code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-1);
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 4px;
}

/* ── Feature terminal ──────────────────────────────────────── */
.feat-terminal {
  background: #0b0e14;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03),
    0 20px 60px rgba(0,0,0,0.6);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.65;
}
.feat-terminal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  background: #0d1018;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.feat-terminal-body {
  padding: 18px 20px 22px;
  min-height: 220px;
  overflow-x: auto;
}
.feat-code-body {
  padding: 0;
}
.feat-code {
  padding: 18px 20px 22px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--text-2);
  overflow-x: auto;
  white-space: pre;
  margin: 0;
}

/* ── tmux section: clip phone mockup at section boundary ──── */
#tmux {
  overflow: hidden;
}

/* ── tmux session mobility mockup ─────────────────────────── */
.tmux-mobility-demo {
  position: relative;
}

.tmux-desktop-terminal {
  width: 100%;
}

.tmux-phone-mockup {
  position: absolute;
  top: -100px;
  right: -44px;
  z-index: 2;
  filter: drop-shadow(0 40px 80px rgba(0,0,0,0.75));
}

.phone-shell {
  width: 300px;
  background: #111318;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 52px;
  padding: 20px 10px;
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.6),
    inset 0 0 0 1px rgba(255,255,255,0.05),
    0 10px 0 0 rgba(255,255,255,0.06);
  position: relative;
}

/* Power button (right side) */
.phone-shell::before {
  content: '';
  position: absolute;
  right: -4px;
  top: 100px;
  width: 3px;
  height: 64px;
  background: rgba(255,255,255,0.14);
  border-radius: 0 2px 2px 0;
}
/* Volume buttons (left side) */
.phone-shell::after {
  content: '';
  position: absolute;
  left: -4px;
  top: 80px;
  width: 3px;
  height: 36px;
  background: rgba(255,255,255,0.12);
  border-radius: 2px 0 0 2px;
  box-shadow: 0 48px 0 rgba(255,255,255,0.12), 0 92px 0 rgba(255,255,255,0.12);
}

.phone-notch {
  width: 88px;
  height: 13px;
  background: #0b0d12;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  margin: 0 auto 14px;
}

.phone-screen {
  background: #0b0e14;
  border-radius: 36px;
  overflow: hidden;
  min-height: 390px;
}

.phone-statusbar {
  display: flex;
  justify-content: space-between;
  padding: 9px 18px;
  font-size: 10px;
  color: var(--text-3);
  font-family: var(--font-mono);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  background: rgba(255,255,255,0.02);
}

.phone-terminal {
  padding: 16px 16px 116px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
}

.phone-terminal .t-line {
  font-size: 13px;
}

/* ── tmux grid mockup ──────────────────────────────────────── */
.feat-terminal-tmux .feat-terminal-body {
  padding: 0;
}
.tmux-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  min-height: 220px;
}
.tmux-pane {
  padding: 12px 14px;
  border-right: 1px solid rgba(255,255,255,0.07);
  overflow: hidden;
}
.tmux-pane:last-child { border-right: none; }
.tmux-pane-main { border-right: 1px solid rgba(255,255,255,0.07); }
.tmux-pane-col {
  display: flex;
  flex-direction: column;
}
.tmux-pane-col .tmux-pane { flex: 1; }
.tmux-pane-border-top { border-top: 1px solid rgba(255,255,255,0.07); }
.tmux-pane-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* ── Nav active state on features page ─────────────────────── */
.nav-links a.active {
  color: var(--text-1);
  background: var(--surface);
}

/* ── Section divider ────────────────────────────────────────── */
.section-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-2) 20%, var(--border-2) 80%, transparent);
  margin: 24px auto 32px;
  max-width: var(--container);
  padding: 0 24px;
  box-sizing: border-box;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .feature-deep-inner { grid-template-columns: 1fr; gap: 48px; }
  .feature-deep-reverse { direction: ltr; }
  .tmux-grid { grid-template-columns: 1fr 1fr; }
  .tmux-pane-main { grid-column: 1 / -1; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.07); }

  .tmux-phone-mockup { display: none; }
}

@media (max-width: 768px) {

  .page-hero { padding-top: calc(var(--nav-h) + 48px); padding-bottom: 48px; }
  .page-hero-sub { font-size: 16px; }

  .feature-deep-inner { gap: 36px; }
  .feature-deep-demo { width: 100%; max-width: 100vw; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .feat-terminal { min-width: 0; width: 100%; max-width: calc(100vw - 32px); }
  .feat-terminal-body { overflow-x: auto; -webkit-overflow-scrolling: touch; }

  .feat-terminal-body { font-size: 12px; }
  .feat-code { font-size: 11.5px; }
  .t-line { font-size: 12px; }

  .feature-bullets { font-size: 14px; }
  .feature-bullets li { padding: 6px 0; }

  .fo-grid { gap: 12px; }

  .tmux-grid { grid-template-columns: 1fr; }
  .tmux-pane { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.07); }
  .tmux-pane:last-child { border-bottom: none; }
  .tmux-pane-col { flex-direction: column; }
}

@media (max-width: 480px) {
  .page-hero { padding-top: calc(var(--nav-h) + 40px); padding-bottom: 40px; }
  .page-hero-title { font-size: clamp(28px, 7vw, 48px); }
  .page-hero-sub { font-size: 15px; }

  .feature-deep-copy h2 { font-size: clamp(22px, 5vw, 32px); }
  .feature-deep-copy p { font-size: 14px; }
  .feature-tag-pill { font-size: 11px; padding: 4px 10px; }

  .feat-terminal { font-size: 11px; }
  .feat-terminal-body { font-size: 11px; padding: 12px; }
  .feat-terminal-header { padding: 8px 12px; }
  .feat-code { font-size: 11px; }

  .feature-deep-inner { gap: 28px; }
  .feature-deep { padding-top: 40px; padding-bottom: 40px; }
}