/* ============================================================
   42 BERLIN AI CLUB — v4 "motion layer"
   Dark instrument aesthetic · CSS-only motion system
   ============================================================ */

:root {
  --bg: #0A0B0D;
  --panel: #121316;
  --panel-2: #17191D;
  --line: #262A31;
  --signal: #FF9E40;
  --signal-dim: rgba(255, 158, 64, .14);
  --ok: #6ADC67;
  --info: #5FA8C7;
  --err: #D85C46;
  --tx-1: #FBFBFB;
  --tx-2: #B8BCC4;
  --tx-3: #69707A;

  --font-display: 'Clash Display', 'Satoshi', sans-serif;
  --font-body: 'Satoshi', -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'Technor', 'SFMono-Regular', Consolas, monospace;

  --ease-reveal: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --r-sm: 6px;
  --r-md: 12px;
  --chrome-h: 58px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--tx-1);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--signal); color: #0A0B0D; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #343A44; }

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- reveal system ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity .9s var(--ease-reveal),
    transform .9s var(--ease-reveal);
  transition-delay: calc(var(--i, 0) * 70ms);
}
[data-reveal][data-revealed] {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- scroll progress ---------- */
.scroll-progress {
  position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 90;
  background: transparent;
}
.scroll-progress span {
  display: block; height: 100%;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: 0 50%;
  box-shadow: 0 0 12px rgba(255, 158, 64, .5);
}

/* ---------- chrome (top bar) ---------- */
.chrome {
  position: fixed; inset: 0 0 auto 0; z-index: 80;
  height: var(--chrome-h);
  display: flex; align-items: center; gap: 28px;
  padding: 0 clamp(18px, 4vw, 44px);
  background: rgba(10, 11, 13, .78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.wordmark {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: .12em;
  text-decoration: none; color: var(--tx-1);
}
.wordmark em { color: var(--signal); font-style: normal; }
.wordmark-ring { transform-origin: 50% 50%; animation: ring-spin 24s linear infinite; }

.chrome-nav {
  display: flex; gap: 4px; margin-left: auto;
}
.chrome-nav a {
  font-family: var(--font-mono);
  font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--tx-2); text-decoration: none;
  padding: 7px 13px; border-radius: 99px;
  border: 1px solid transparent;
  transition: color .3s var(--ease-standard), border-color .3s var(--ease-standard), background .3s var(--ease-standard);
}
.chrome-nav a:hover { color: var(--tx-1); border-color: var(--line); background: var(--panel); }
.chrome-nav a.nav-cta { color: var(--signal); border-color: rgba(255, 158, 64, .35); }
.chrome-nav a.nav-cta:hover { background: var(--signal-dim); border-color: var(--signal); }

.chrome-status {
  display: flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .16em;
  color: var(--tx-3);
}
.chrome-status i {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--tx-3);
  transition: background .4s;
}
.chrome-status.online i { background: var(--ok); animation: live-blink 2.4s ease-in-out infinite; }
.chrome-status.offline i { background: var(--err); }
.chrome-status.online { color: var(--ok); }
.chrome-status.offline { color: var(--err); }

@keyframes live-blink {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(106, 220, 103, .35); }
  50% { opacity: .55; box-shadow: 0 0 0 5px rgba(106, 220, 103, 0); }
}

/* ---------- shared section furniture ---------- */
.section {
  position: relative;
  padding: clamp(90px, 12vh, 150px) clamp(18px, 5vw, 64px);
  max-width: 1240px;
  margin: 0 auto;
}
.section-head { max-width: 640px; margin-bottom: clamp(44px, 6vh, 72px); }
.overline {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 11.5px;
  letter-spacing: .22em; color: var(--tx-3);
  text-transform: uppercase; margin-bottom: 20px;
}
.marker { color: var(--signal); }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.02em;
}
.section-sub { color: var(--tx-2); margin-top: 16px; max-width: 46ch; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12.5px;
  letter-spacing: .1em; text-transform: uppercase;
  text-decoration: none; cursor: pointer;
  padding: 14px 22px; border-radius: var(--r-sm);
  border: 1px solid transparent;
  transition: transform .35s var(--ease-reveal), box-shadow .35s var(--ease-reveal),
              background .3s var(--ease-standard), border-color .3s var(--ease-standard), color .3s;
}
.btn svg { transition: transform .35s var(--ease-reveal); }
.btn:hover svg { transform: translateX(4px); }
.btn-primary {
  background: var(--signal); color: #0A0B0D; font-weight: 500;
  animation: cta-breathe 3.4s ease-in-out infinite;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(255, 158, 64, .32); }
.btn-ghost {
  background: transparent; color: var(--tx-2); border-color: var(--line);
}
.btn-ghost:hover { color: var(--tx-1); border-color: #3A404B; background: var(--panel); }
.btn[disabled] { opacity: .55; pointer-events: none; }

@keyframes cta-breathe {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 158, 64, 0); }
  50% { box-shadow: 0 0 0 7px rgba(255, 158, 64, .16); }
}

/* ============================================================
   00 / SIGNAL — hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: calc(var(--chrome-h) + 40px) clamp(18px, 5vw, 64px) 80px;
  overflow: hidden;
}
.hero-grid {
  position: absolute; inset: -64px;
  background-image:
    linear-gradient(rgba(38, 42, 49, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 42, 49, .5) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
  animation: grid-pan 38s linear infinite;
  pointer-events: none;
}
@keyframes grid-pan { to { background-position: 64px 64px; } }

.hero-inner {
  position: relative;
  max-width: 1240px; width: 100%; margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, .9fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(46px, 7.2vw, 96px);
  line-height: .98;
  letter-spacing: -0.025em;
  margin: 18px 0 26px;
}
.hero-title .line { display: block; }
.hero-title em {
  font-style: normal;
  color: var(--signal);
  text-shadow: 0 0 34px rgba(255, 158, 64, .3);
}
.lede { color: var(--tx-2); max-width: 44ch; font-size: 17px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.live-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--signal);
  animation: live-blink 2.4s ease-in-out infinite;
}

/* --- telemetry panel (the ticker) --- */
.telemetry {
  position: relative;
  background: rgba(18, 19, 22, .72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 22px 24px 18px;
  animation: float-y 7s ease-in-out infinite;
}
.telemetry::before {
  content: "";
  position: absolute; inset: -1px;
  border-radius: inherit;
  background:
    linear-gradient(rgba(38, 42, 49, .35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 42, 49, .35) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(#000, transparent 60%);
  -webkit-mask-image: linear-gradient(#000, transparent 60%);
  pointer-events: none;
}
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.telemetry-head {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-bottom: 14px; margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.t-label {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .24em; color: var(--tx-3);
}
.t-source {
  font-family: var(--font-mono); font-size: 10.5px;
  color: var(--signal); opacity: .8;
}

.telemetry-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--r-sm);
  overflow: hidden;
}
.metric {
  background: var(--panel);
  padding: 18px 16px 14px;
  transition: background .4s var(--ease-standard);
}
.metric:hover { background: var(--panel-2); }

.odometer {
  display: flex; justify-content: center;
  font-family: var(--font-mono);
  font-size: clamp(30px, 3vw, 40px);
  line-height: 1.1;
  color: var(--tx-1);
  font-variant-numeric: tabular-nums;
  min-height: 1.15em;
}
.odometer .digit {
  display: inline-block;
  height: 1.15em; overflow: hidden;
}
.odometer .digit-col {
  display: flex; flex-direction: column;
  transition: transform 1.1s var(--ease-reveal);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.odometer .digit-col span { height: 1.15em; display: block; }
.metric-label {
  margin-top: 6px;
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--tx-3); text-align: center;
}

.telemetry-foot {
  display: flex; align-items: center; gap: 10px;
  margin-top: 16px;
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .12em; color: var(--tx-3);
}
.t-dial {
  width: 10px; height: 10px; border-radius: 50%;
  border: 2px solid var(--signal);
  animation: dial-pulse 3s ease-in-out infinite;
}
@keyframes dial-pulse {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(255, 158, 64, .18)); opacity: 1; }
  50% { filter: drop-shadow(0 0 16px rgba(255, 158, 64, .36)); opacity: .7; }
}

.hero-scrollhint {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  width: 1px; height: 52px; background: var(--line); overflow: hidden;
}
.hero-scrollhint span {
  position: absolute; left: 0; top: -40%;
  width: 100%; height: 40%;
  background: var(--signal);
  animation: scroll-drip 2.2s var(--ease-standard) infinite;
}
@keyframes scroll-drip {
  0% { top: -40%; } 70%, 100% { top: 110%; }
}

/* ============================================================
   01 / TRANSMISSIONS — timeline
   ============================================================ */
.timeline { position: relative; max-width: 780px; }
.timeline-spine {
  position: absolute; left: 9px; top: 6px; bottom: 6px;
  width: 1px; background: var(--line);
}
.timeline-spine span {
  display: block; width: 100%; height: 100%;
  background: linear-gradient(var(--signal), rgba(255, 158, 64, .25));
  transform: scaleY(0);
  transform-origin: 0 0;
  box-shadow: 0 0 10px rgba(255, 158, 64, .4);
}
.timeline-list { list-style: none; }

.t-event {
  position: relative;
  padding: 0 0 44px 44px;
}
.t-event::before {
  content: "";
  position: absolute; left: 4px; top: 8px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--tx-3);
  transition: border-color .4s, box-shadow .4s, background .4s;
}
.t-event.hot::before {
  border-color: var(--signal);
  background: var(--signal);
  animation: hot-node 2s ease-in-out infinite;
}
@keyframes hot-node {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 158, 64, .45); }
  50% { box-shadow: 0 0 0 9px rgba(255, 158, 64, 0); }
}
.t-event.past { opacity: .48; }
.t-event.past:hover { opacity: .8; }

.t-card {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  padding: 20px 22px;
  transition: border-color .35s var(--ease-standard), transform .45s var(--ease-reveal), background .35s;
}
.t-event:hover .t-card { border-color: #3A404B; transform: translateX(6px); background: var(--panel-2); }
.t-event.hot .t-card { border-color: rgba(255, 158, 64, .45); box-shadow: 0 0 32px rgba(255, 158, 64, .08); }

.t-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  margin-bottom: 10px;
}
.t-date {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: .1em; color: var(--tx-3);
  font-variant-numeric: tabular-nums;
}
.t-badge {
  font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: .18em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 99px;
  border: 1px solid var(--line); color: var(--tx-2);
}
.t-badge.hot-badge {
  border-color: var(--signal); color: var(--signal);
  background: var(--signal-dim);
}
.t-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 22px; letter-spacing: -0.01em; line-height: 1.2;
  margin-bottom: 6px;
}
.t-desc { color: var(--tx-2); font-size: 14.5px; max-width: 58ch; }
.t-loc {
  margin-top: 10px;
  font-family: var(--font-mono); font-size: 11px;
  color: var(--tx-3); letter-spacing: .06em;
}
.t-link {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 10px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--info); text-decoration: none;
}
.t-link:hover { text-decoration: underline; }

.timeline-empty { color: var(--tx-2); padding-left: 44px; }
.timeline-empty a { color: var(--signal); }

/* ============================================================
   02 / CONSTELLATION — projects
   ============================================================ */
.constellation-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .85fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}
.constellation-canvas-col {
  position: sticky; top: calc(var(--chrome-h) + 24px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background:
    radial-gradient(ellipse 70% 60% at 50% 45%, rgba(255, 158, 64, .04), transparent 70%),
    var(--panel);
  overflow: hidden;
}
#constellation { display: block; width: 100%; height: 520px; cursor: crosshair; }

.constellation-cards { display: flex; flex-direction: column; gap: 14px; }
.p-card {
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--panel);
  padding: 16px 18px;
  transition: border-color .3s var(--ease-standard), background .3s, transform .4s var(--ease-reveal);
}
.p-card:hover, .p-card.active {
  border-left-color: var(--signal);
  background: var(--panel-2);
  transform: translateX(4px);
}
.p-card h3 {
  font-family: var(--font-display); font-weight: 600;
  font-size: 17px; margin-bottom: 4px;
}
.p-card p { color: var(--tx-2); font-size: 13.5px; }
.p-tags { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.p-tag {
  font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--tx-3);
  border: 1px solid var(--line); border-radius: 99px;
  padding: 2px 9px;
}
.p-card.active .p-tag, .p-card:hover .p-tag { color: var(--signal); border-color: rgba(255, 158, 64, .4); }
.p-link {
  font-family: var(--font-mono); font-size: 10.5px;
  color: var(--info); text-decoration: none; letter-spacing: .1em;
}
.p-link:hover { text-decoration: underline; }

/* ============================================================
   03 / LOG — blog
   ============================================================ */
.log-list { display: flex; flex-direction: column; }
.log-item {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  gap: 24px; align-items: baseline;
  padding: 26px 0;
  border-top: 1px solid var(--line);
  text-decoration: none;
  transition: padding-left .45s var(--ease-reveal);
}
.log-item:hover { padding-left: 14px; }
.log-date {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--tx-3); font-variant-numeric: tabular-nums;
}
.log-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 21px; letter-spacing: -0.01em;
}
.log-summary { color: var(--tx-2); font-size: 14px; margin-top: 4px; }
.log-arrow { color: var(--signal); font-family: var(--font-mono); }

/* ============================================================
   04 / UPLINK — join ring
   ============================================================ */
.join { padding-bottom: clamp(70px, 9vh, 120px); }

.ring-stage {
  position: relative;
  width: min(620px, 94vw);
  margin: 0 auto;
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
}
.ring-svg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.ring-track { fill: none; stroke: var(--line); stroke-width: 1; }
.ring-dash {
  fill: none; stroke: var(--signal); stroke-width: 1.4;
  stroke-dasharray: 3 14; stroke-linecap: round;
  opacity: .75;
}
.ring-dash-2 { stroke: #3A404B; stroke-dasharray: 2 10; }
.ring-spin-a { transform-origin: 50% 50%; animation: ring-spin 40s linear infinite; }
.ring-spin-b { transform-origin: 50% 50%; animation: ring-spin 64s linear infinite reverse; }
@keyframes ring-spin { to { transform: rotate(360deg); } }

.ring-fill {
  fill: none; stroke: var(--signal); stroke-width: 2.4;
  stroke-linecap: round;
  stroke-dasharray: 1583.4;         /* 2π·252 */
  stroke-dashoffset: 1583.4;
  transform: rotate(-90deg); transform-origin: 50% 50%;
  filter: drop-shadow(0 0 10px rgba(255, 158, 64, .5));
  transition: stroke-dashoffset 1.6s var(--ease-reveal);
}
.ring-stage.completed .ring-fill { stroke-dashoffset: 0; }
.ring-stage.completed .ring-spin-a,
.ring-stage.completed .ring-spin-b { animation-play-state: paused; opacity: .25; }

.ring-form {
  position: relative; z-index: 2;
  width: 62%;
  display: flex; flex-direction: column; gap: 13px;
}
.field { display: flex; flex-direction: column; gap: 5px; }
.field label {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--tx-3);
}
.field .opt { color: var(--tx-3); opacity: .6; text-transform: none; letter-spacing: .05em; }
.field input, .field textarea {
  font-family: var(--font-body); font-size: 15px;
  color: var(--tx-1);
  background: rgba(18, 19, 22, .85);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 11px 13px;
  transition: border-color .3s var(--ease-standard), box-shadow .3s;
  resize: none;
  width: 100%;
}
.field input::placeholder, .field textarea::placeholder { color: #4A5058; }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(255, 158, 64, .14);
}
.field.invalid input, .field.invalid textarea {
  border-color: var(--err);
  box-shadow: 0 0 0 3px rgba(216, 92, 70, .12);
}
.field-err {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .08em; color: var(--err);
}
.ring-submit { justify-content: center; margin-top: 6px; }
.form-err {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--err); text-align: center; letter-spacing: .06em;
}
.form-ok {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--ok); text-align: center; letter-spacing: .06em;
}

.ring-success {
  position: absolute; z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  text-align: center;
}
.success-circle {
  stroke-dasharray: 182.2; stroke-dashoffset: 182.2;
  animation: draw 1s var(--ease-reveal) forwards;
}
.success-check {
  stroke-dasharray: 34; stroke-dashoffset: 34;
  animation: draw .6s var(--ease-reveal) .7s forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }
.success-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 26px; letter-spacing: -0.01em;
}
.success-sub { color: var(--tx-2); font-size: 14px; }

/* --- partner --- */
.partner-block { max-width: 620px; margin: 56px auto 0; text-align: center; }
.partner-line { color: var(--tx-2); font-size: 14px; margin-bottom: 14px; }
.partner-form { margin-top: 26px; text-align: left; }
.pf-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 13px 16px; margin-bottom: 16px;
}
.field-wide { grid-column: 1 / -1; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); }
.footer-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 26px clamp(18px, 5vw, 64px);
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .14em; color: var(--tx-3);
}
.footer-mark { color: var(--tx-1); }
.footer-note { margin-right: auto; }
.footer-link { color: var(--tx-2); text-decoration: none; }
.footer-link:hover { color: var(--signal); }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .telemetry { max-width: 460px; }
  .constellation-wrap { grid-template-columns: 1fr; }
  .constellation-canvas-col { position: relative; top: 0; }
  #constellation { height: 340px; }
}
@media (max-width: 640px) {
  .chrome { gap: 14px; }
  .chrome-nav a:not(.nav-cta) { display: none; }
  .chrome-status span { display: none; }
  .ring-form { width: 74%; }
  .pf-grid { grid-template-columns: 1fr; }
  .log-item { grid-template-columns: 1fr; gap: 6px; }
  .telemetry-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    transition-delay: 0ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .hero-grid { animation: none; }
  .telemetry { animation: none; }
  .scroll-progress { display: none; }
  .timeline-spine span { transform: scaleY(1); }
  .ring-fill { transition: none; }
}