/* =========================================================
   xiaomovps — Pi Field Notes
   pi.dev paper/terminal + minlibuilds conversion skeleton
   ========================================================= */

:root {
  --bg-deep: #0d1116;
  --bg-canvas: #161d27;
  --panel: #212730;
  --panel-soft: #252f3d;
  --line: #49505980;
  --line-strong: #757d8975;
  --ink: #ebe7e4;
  --ink-dim: #d5d8dbcc;
  --mute: #9fa4ab;
  --accent: #6a9fcc;
  --accent-hot: #8bb8dc;
  --accent-dim: rgba(106, 159, 204, 0.14);
  --ok: #5db87a;

  --font-display: "Source Serif 4", "Noto Serif SC", "Songti SC", Georgia, serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --radius: 12px;
  --radius-sm: 8px;
  --nav-h: 64px;
  --max: 1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 28px);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg-deep);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; }

::selection {
  background: var(--accent);
  color: var(--bg-deep);
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.grid-paper {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(hsl(218 60% 80% / 0.035) 1px, transparent 1px),
    linear-gradient(90deg, hsl(218 60% 80% / 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 10%, transparent 78%);
}

main, .nav, .footer, .mobile-cta, .mobile-drawer { position: relative; z-index: 1; }

/* Nav — floating bar, pi.dev */
.nav {
  position: sticky;
  top: 12px;
  z-index: 40;
  height: var(--nav-h);
  max-width: calc(var(--max) + 24px);
  margin: 12px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px 0 18px;
  background: linear-gradient(180deg, #212730f7, #0d1116e8);
  border: 1px solid var(--line);
  border-radius: 14px;
  backdrop-filter: blur(16px) saturate(1.15);
  -webkit-backdrop-filter: blur(16px) saturate(1.15);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
}

.brand-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
  border: 1px solid rgba(106, 159, 204, 0.45);
}

.brand-dot { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--mute);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav-links a:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.04);
}

.nav-cta,
a.nav-cta {
  color: var(--accent) !important;
  letter-spacing: 0.06em;
}

.nav-cta:hover,
a.nav-cta:hover {
  background: var(--accent-dim) !important;
}

.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
}

.nav-burger span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
}

.nav-burger.is-open span:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav-burger.is-open span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

.mobile-drawer {
  position: fixed;
  top: calc(var(--nav-h) + 24px);
  left: 12px;
  right: 12px;
  z-index: 35;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px;
  background: #0d1116f2;
  border: 1px solid var(--line);
  border-radius: 14px;
  backdrop-filter: blur(12px);
}

.mobile-drawer[hidden] { display: none !important; }

.mobile-drawer a {
  padding: 14px 16px;
  border-radius: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
}

/* Hero */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 96px) clamp(16px, 4vw, 40px) 32px;
}

.hero-404 { min-height: 70vh; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}

.live-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-dim);
  border: 1px solid rgba(106, 159, 204, 0.32);
  color: var(--accent);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(106, 159, 204, 0.55);
  animation: pulse 1.8s ease infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(106, 159, 204, 0.5); }
  70% { box-shadow: 0 0 0 10px rgba(106, 159, 204, 0); }
  100% { box-shadow: 0 0 0 0 rgba(106, 159, 204, 0); }
}

.meta-sep { opacity: 0.35; }

.hero-title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 6vw, 3.7rem);
  line-height: 1.22;
}

.title-line { display: block; }

.title-line.accent {
  font-style: italic;
  font-weight: 600;
  color: var(--accent);
}

.hero-lead {
  max-width: 38rem;
  margin: 0 0 28px;
  color: var(--ink-dim);
  font-size: clamp(1.02rem, 2vw, 1.12rem);
}

.hero-lead-sub {
  display: block;
  margin-top: 10px;
  color: var(--mute);
  font-size: 0.92em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.hero-trust {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 36px;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.84rem;
  color: var(--ink-dim);
}

.hero-trust:hover { border-color: rgba(106, 159, 204, 0.4); }
.hero-trust-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.hero-trust-more { color: var(--accent); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--accent);
  color: #0b1118;
  box-shadow: 0 10px 28px rgba(106, 159, 204, 0.28);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

.btn-ghost:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.btn:focus-visible,
.channel:focus-visible,
.nav-links a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Terminal — pi.dev session caption */
.terminal {
  margin: 0;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #142433 0%, #101820 100%);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
}

.terminal-bar-mac {
  justify-content: flex-start;
  gap: 7px;
}

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

.t-red { background: #ff5f57; }
.t-amber { background: #febc2e; }
.t-green { background: #28c840; }

.terminal-path {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--mute);
}

.terminal-body {
  padding: 18px 18px 22px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.85;
  min-height: 168px;
}

.log-line {
  color: var(--ink-dim);
  opacity: 0;
  transform: translateY(4px);
  animation: log-boot 0.35s var(--ease) forwards;
}

.terminal-body .log-line:nth-child(1) { animation-delay: 0.15s; }
.terminal-body .log-line:nth-child(2) { animation-delay: 0.5s; }
.terminal-body .log-line:nth-child(3) { animation-delay: 0.85s; }
.terminal-body .log-line:nth-child(4) { animation-delay: 1.2s; }
.terminal-body .log-line:nth-child(5) { animation-delay: 1.55s; }
.terminal-body .log-line:nth-child(6) { animation-delay: 1.9s; }

@keyframes log-boot {
  to { opacity: 1; transform: none; }
}

.log-ts { color: var(--accent); margin-right: 8px; }
.log-ok { color: var(--ok); }
.log-work { color: var(--accent-hot); }
.cursor { color: var(--accent); animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Stats */
.stats {
  max-width: var(--max);
  margin: 0 auto 12px;
  padding: 0 clamp(16px, 4vw, 40px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat {
  background: var(--panel);
  padding: 22px 18px;
  text-align: center;
}

.stat-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

/* Sections */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(56px, 10vw, 96px) clamp(16px, 4vw, 40px) 0;
}

.section-head { margin-bottom: 32px; max-width: 40rem; }

.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.section h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  line-height: 1.3;
}

.section-desc { margin: 0; color: var(--ink-dim); }

.section-foot {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 28px;
}

.section-foot-split {
  justify-content: space-between;
}

.text-link-cta {
  color: var(--accent-hot);
  border-bottom-color: rgba(106, 159, 204, 0.45);
}

.text-link {
  color: var(--accent);
  font-weight: 500;
  border-bottom: 1px solid rgba(106, 159, 204, 0.35);
}

.text-link:hover { color: var(--accent-hot); }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 16px;
}

.about-main,
.fact-card,
.partner-card,
.service-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.about-main { padding: 28px; }

.about-id {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.about-id img {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid var(--line);
}

.about-id strong { display: block; font-size: 1.1rem; }
.about-id span { color: var(--mute); font-family: var(--font-mono); font-size: 0.85rem; }

.about-main p { margin: 0 0 18px; color: var(--ink-dim); }
.about-main em {
  font-style: italic;
  font-family: var(--font-display);
  color: var(--ink);
}

.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mute);
}

.about-side { display: grid; gap: 12px; }
.fact-card { padding: 20px 22px; }
.fact-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.fact-card p { margin: 0; color: var(--ink-dim); font-size: 0.95rem; }

/* Notes — X post cards */
.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.x-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 16px 16px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #0f1419;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
}

.x-card:hover {
  border-color: rgba(29, 155, 240, 0.45);
  background: #12181f;
  transform: translateY(-2px);
}

.x-card-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}

.x-card-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.x-card-meta { flex: 1; min-width: 0; }

.x-card-name-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.x-card-name-row strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: #e7e9ea;
  font-family: var(--font-body);
}

.x-card-handle {
  display: block;
  font-size: 0.82rem;
  color: #71767b;
  margin-top: 1px;
}

.x-logo {
  color: #e7e9ea;
  opacity: 0.85;
  flex-shrink: 0;
  margin-top: 2px;
}

.x-card-text {
  margin: 0 0 12px;
  font-size: 0.95rem;
  line-height: 1.5;
  color: #e7e9ea;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.x-card-media {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid #2f3336;
  background: #000;
  aspect-ratio: 16 / 9;
  margin-bottom: 12px;
}

.x-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s var(--ease);
}

.x-card:hover .x-card-media img { transform: scale(1.03); }

.x-card-article {
  aspect-ratio: auto;
  margin-bottom: 10px;
}

.x-card-article img {
  width: 100%;
  height: auto;
  object-fit: unset;
}

.x-article-bar { margin-bottom: 12px; }

.x-article-bar span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8b98a5;
  margin-bottom: 4px;
}

.x-article-bar strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.4;
  color: #e7e9ea;
}

.x-article-bar em {
  display: block;
  margin-top: 4px;
  font-style: normal;
  font-size: 0.75rem;
  color: #8b98a5;
}

.x-card-plain .x-card-text {
  font-size: 1.08rem;
  line-height: 1.75;
  -webkit-line-clamp: 8;
  margin-top: auto;
  margin-bottom: auto;
  padding-bottom: 16px;
}

.x-card-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  font-size: 0.78rem;
  color: #71767b;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}

.x-card-stats .x-views {
  margin-left: auto;
  color: #8b98a5;
}

.x-card-cta {
  font-size: 0.82rem;
  font-weight: 600;
  color: #1d9bf0;
}

.x-card:hover .x-card-cta { text-decoration: underline; }

/* Partners — terminal + marquee */
.partner-terminal .log-line { animation-play-state: paused; }
.partner-terminal.in-view .log-line { animation-play-state: running; }
.partner-terminal .terminal-body { min-height: 0; }
.partner-terminal .partner-marquee { margin: 14px 0; }

.partner-marquee {
  overflow: hidden;
  cursor: grab;
  touch-action: pan-y;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}

.partner-marquee.dragging { cursor: grabbing; }

.partner-track {
  display: flex;
  width: max-content;
  will-change: transform;
}

.partner-set {
  display: flex;
  gap: 12px;
  padding-right: 12px;
}

.partner-card {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  padding: 12px 24px 12px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  user-select: none;
  -webkit-user-select: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.partner-card:hover {
  border-color: rgba(106, 159, 204, 0.4);
  transform: translateY(-1px);
}

.partner-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  white-space: nowrap;
}

.partner-mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-hot);
  overflow: hidden;
}

.partner-mark img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
  -webkit-user-drag: none;
}

.partner-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
}

.partner-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mute);
}

/* Enterprise */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.service-card { padding: 26px 24px; }
.service-num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--accent);
}
.service-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.25rem;
}
.service-card p { margin: 0; color: var(--ink-dim); }

.collab-note {
  margin-top: 20px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px dashed rgba(106, 159, 204, 0.4);
  background: var(--accent-dim);
  color: var(--ink-dim);
  font-size: 0.93rem;
}

.collab-note strong {
  color: var(--accent-hot);
}

.process-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 28px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.process-step {
  padding: 20px 18px;
  background: var(--bg-canvas);
}

.process-num {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.process-step strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.98rem;
}

.process-step p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--mute);
  line-height: 1.6;
}

/* Contact */
.contact-section { padding-bottom: clamp(48px, 8vw, 80px); }

.contact-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: clamp(24px, 4vw, 36px);
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid rgba(106, 159, 204, 0.32);
  background:
    radial-gradient(ellipse 70% 80% at 100% 0%, rgba(106, 159, 204, 0.14), transparent 50%),
    radial-gradient(ellipse 50% 60% at 0% 100%, var(--accent-dim), transparent 45%),
    var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.contact-copy h2 { margin-bottom: 12px; }
.contact-copy p {
  margin: 0 0 16px;
  color: var(--ink-dim);
}
.contact-copy strong { color: var(--ink); font-weight: 600; }

.contact-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-checklist li {
  position: relative;
  padding: 8px 0 8px 22px;
  color: var(--ink-dim);
  font-size: 0.93rem;
  border-top: 1px solid var(--line);
}

.contact-checklist li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
}

.contact-channels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  align-content: start;
}

.channel {
  display: block;
  text-align: left;
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(13, 17, 22, 0.55);
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), background 0.2s var(--ease);
}

.channel:hover {
  border-color: rgba(106, 159, 204, 0.45);
  transform: translateY(-1px);
  background: rgba(13, 17, 22, 0.85);
}

.channel-primary {
  grid-column: 1 / -1;
  border-color: rgba(106, 159, 204, 0.5);
  background: linear-gradient(135deg, rgba(106, 159, 204, 0.18), rgba(13, 17, 22, 0.4));
}

.channel-primary:hover { border-color: var(--accent); }

.channel-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 6px;
}

.channel-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.channel-value-sm {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  word-break: break-all;
}

.channel-hint {
  font-size: 0.82rem;
  color: var(--ink-dim);
}

.channel-qr {
  cursor: default;
  display: flex;
  align-items: center;
  gap: 18px;
}

.channel-qr img {
  width: 132px;
  height: auto;
  flex-shrink: 0;
  border-radius: 10px;
  background: #fff;
}

.contact-channels .channel-copy { grid-column: 1 / -1; }

.channel-copy.copied { border-color: var(--ok); }
.channel-copy.copied .channel-hint { color: var(--ok); }

/* Footer */
.footer {
  border-top: 1px solid var(--line);
  padding: 28px clamp(16px, 4vw, 40px) 40px;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.footer-brand strong { display: block; }
.footer-brand span { color: var(--mute); font-size: 0.85rem; }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--mute);
}

.footer-email { color: var(--mute); }

.footer-links a:hover { color: var(--accent); }
.footer-copy { margin: 0; color: var(--mute); font-size: 0.8rem; font-family: var(--font-mono); }

.mobile-cta {
  display: none;
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 30;
  gap: 8px;
  padding: 10px;
  background: #0d1116f0;
  border: 1px solid var(--line);
  border-radius: 14px;
  backdrop-filter: blur(12px);
}

.mobile-cta .btn { flex: 1; }

@media (max-width: 900px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .about-grid,
  .signal-grid,
  .service-grid,
  .contact-panel,
  .contact-channels { grid-template-columns: 1fr; }
  .process-strip { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav { margin: 8px 10px 0; top: 8px; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .mobile-cta { display: flex; }
  .footer { padding-bottom: 110px; }
  .hero-title { font-size: clamp(2rem, 9vw, 2.7rem); }
  .process-strip { grid-template-columns: 1fr; }
  .channel-qr { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .log-line { opacity: 1; transform: none; }
}