:root {
  color-scheme: dark;
  --ink: #f2eee6;
  --muted: rgba(242, 238, 230, 0.62);
  --quiet: rgba(242, 238, 230, 0.4);
  --text-opacity: 0.42;
  --gutter: clamp(1rem, 3.6vw, 3.6rem);
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Arial, "Helvetica Neue", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  --type-micro: clamp(0.72rem, calc(0.68rem + 0.12vw + 0.08vh), 0.86rem);
  --type-small: clamp(0.8rem, calc(0.74rem + 0.16vw + 0.1vh), 0.98rem);
  --type-body: clamp(0.9rem, calc(0.82rem + 0.18vw + 0.15vh), 1.06rem);
  --type-signal: clamp(0.88rem, calc(0.8rem + 0.22vw + 0.2vh), 1.2rem);
  --type-equation: clamp(1rem, calc(0.9rem + 0.24vw + 0.24vh), 1.4rem);
  --type-quote: clamp(1.08rem, calc(0.9rem + 0.7vw + 0.45vh), 1.7rem);
}
* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; }
body { background: #171715; color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
button, input { color: inherit; font: inherit; }
button { -webkit-tap-highlight-color: transparent; }
::selection { color: #171715; background: var(--ink); }
.experience {
  position: relative;
  isolation: isolate;
  width: 100%;
  height: 100vh;
  height: 100svh;
  min-height: 320px;
  overflow: hidden;
  background: #171715;
}
.boot-motion { position: absolute; z-index: 0; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 1; transition: opacity 0.14s linear; }
#art-canvas, #art-fallback { position: absolute; z-index: 1; inset: 0; display: block; width: 100%; height: 100%; pointer-events: none; opacity: 0; transition: opacity 0.14s linear; }
#art-transition { position: absolute; z-index: 1; inset: 0; display: block; width: 100%; height: 100%; pointer-events: none; opacity: 0; transition: opacity 880ms ease-in-out; }
#art-canvas[hidden], #art-fallback[hidden], #art-transition[hidden] { display: none; }
html[data-art-ready="true"] .boot-motion { opacity: 0; }
html[data-art-ready="true"] #art-canvas:not([hidden]), html[data-art-ready="true"] #art-fallback:not([hidden]) { opacity: 1; }
.experience::after {
  position: absolute;
  z-index: 2;
  inset: 0;
  background: radial-gradient(ellipse at 50% 48%, transparent 56%, rgba(7, 8, 7, 0.26) 100%);
  content: "";
  pointer-events: none;
}
.signal-field { position: absolute; z-index: 3; inset: 0; overflow: hidden; color: rgba(255, 252, 245, 0.9); pointer-events: none; text-shadow: 0 1px 8px rgba(0,0,0,.78), 0 0 20px rgba(0,0,0,.36); }
.signal-readings { position: absolute; top: clamp(5rem, 14vh, 9rem); left: clamp(1.2rem, 8vw, 8rem); display: grid; gap: 0.55rem; width: min(30rem, 58vw); opacity: var(--text-opacity); font: var(--type-signal) var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0.045em; text-shadow: 0 1px 7px rgba(0,0,0,.82), 0 0 14px rgba(0,0,0,.52); animation: signal-drift 31s ease-in-out infinite; transition: opacity 2.8s ease; }
.signal-row { display: grid; grid-template-columns: 2.4rem auto; align-items: baseline; gap: 0.75rem; white-space: nowrap; -webkit-text-stroke: 0.22px rgba(0, 0, 0, 0.78); }
.signal-mark { color: rgba(255, 252, 245, 0.98); font-size: var(--type-small); letter-spacing: 0.08em; }
.signal-number { color: rgba(255, 253, 248, 1); }
.signal-equation { position: absolute; right: clamp(1.2rem, 9vw, 9rem); bottom: clamp(6.8rem, 19vh, 12rem); width: min(38rem, 47vw); text-align: right; opacity: 0.49; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-size: var(--type-equation); letter-spacing: 0.015em; text-shadow: 0 1px 8px rgba(0,0,0,.84), 0 0 18px rgba(0,0,0,.5); animation: signal-drift 37s ease-in-out infinite reverse; transition: opacity 2.8s cubic-bezier(.22,.75,.18,1), filter 2.8s cubic-bezier(.22,.75,.18,1), transform 2.8s cubic-bezier(.22,.75,.18,1); }
.signal-equation.is-fading { opacity: 0; filter: blur(2px); transform: translateY(-0.18em); }
.signal-equation-lines { position: relative; display: grid; }
.signal-equation-sequence { position: relative; display: grid; gap: 0.38rem; }
.signal-equation-sequence.is-retiring { position: absolute; z-index: 1; inset: 0; pointer-events: none; }
.signal-equation-sequence:not(.is-retiring) { z-index: 2; }
.signal-equation-step { display: block; opacity: 0; line-height: 1.24; overflow-wrap: anywhere; filter: blur(3px); transform: translate3d(0, 0.42em, 0) scale(0.995); transition: opacity 3.8s cubic-bezier(.2,.72,.2,1), filter 3.8s cubic-bezier(.2,.72,.2,1), transform 3.8s cubic-bezier(.2,.72,.2,1); }
.signal-equation-step.is-visible { opacity: 0.86; filter: blur(0); transform: translate3d(0, 0, 0) scale(1); -webkit-text-stroke: 0.22px rgba(0, 0, 0, 0.78); }
.signal-equation-step.is-resolved { opacity: 0.22; filter: blur(0.25px); transform: translate3d(0, -0.08em, 0) scale(0.997); animation: none; }
.signal-equation-step.is-distant { opacity: 0.095; filter: blur(0.35px); transform: translate3d(0, -0.12em, 0) scale(0.996); animation: none; }
.signal-equation-step.is-retiring { opacity: 0; filter: blur(2.2px); transform: translate3d(0, -0.2em, 0) scale(0.992); animation: none; transition-delay: var(--retire-delay, 0ms); }
@keyframes signal-drift { 0%, 100% { translate: 0 0; } 50% { translate: 0 -5px; } }
.quote-field { position: absolute; z-index: 3; max-width: min(48rem, 72vw); color: rgba(255, 252, 245, 0.98); opacity: 0; pointer-events: none; text-shadow: 0 1px 9px rgba(0,0,0,.9), 0 0 24px rgba(0,0,0,.64); transform: translateY(0.28rem); transition: opacity 2.5s ease, transform 4s ease; }
.quote-field.is-visible { opacity: var(--text-opacity); transform: translateY(0); }
.quote-text { margin: 0; font-family: Georgia, "Times New Roman", "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: var(--type-quote); font-weight: 500; letter-spacing: 0.025em; line-height: 1.68; text-wrap: pretty; -webkit-text-stroke: 0.16px rgba(0, 0, 0, 0.48); }
.quote-text:lang(ja), .quote-text:lang(zh) { font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif CJK JP", "Noto Serif JP", serif; letter-spacing: 0.055em; }
.quote-attribution { margin: 0.9rem 0 0; color: rgba(255, 252, 245, 0.96); font: 500 var(--type-small) var(--mono); letter-spacing: 0.045em; text-align: right; }
.quote-field[data-placement="upper"] { top: clamp(8rem, 25vh, 15rem); }
.quote-field[data-placement="middle"] { top: 44vh; }
.quote-field[data-placement="lower"] { top: auto; bottom: clamp(10rem, 24vh, 18rem); }
.quote-field[data-side="left"] { left: clamp(1rem, 8vw, 8rem); right: auto; text-align: left; }
.quote-field[data-side="right"] { right: clamp(1rem, 8vw, 8rem); left: auto; text-align: right; }
.quote-field[data-orientation="vertical"] { top: 21vh; width: auto; max-width: none; max-height: 36vh; writing-mode: vertical-rl; text-orientation: mixed; }
.quote-field[data-orientation="vertical"][data-placement="upper"] { top: 21vh; }
.quote-field[data-orientation="vertical"][data-placement="middle"] { top: 37vh; }
.quote-field[data-orientation="vertical"][data-placement="lower"] { top: auto; bottom: clamp(10rem, 24vh, 18rem); }
.quote-field[data-orientation="vertical"] .quote-text { max-height: 36vh; font-size: var(--type-quote); line-height: 1.75; }
.quote-field[data-orientation="vertical"] .quote-attribution { display: none; }
.world-clock { position: absolute; z-index: 3; display: flex; align-items: center; gap: 0.7rem; width: max-content; max-width: min(15rem, 48vw); color: rgba(255, 250, 238, 0.96); opacity: 0; pointer-events: none; transform: translateY(0.24rem); filter: blur(0.25px); text-shadow: 0 1px 8px rgba(0,0,0,.82), 0 0 18px rgba(0,0,0,.42); transition: opacity 1.9s ease, transform 2.5s cubic-bezier(.22,.75,.18,1), filter 2.5s ease; }
.world-clock.is-visible { opacity: var(--text-opacity); transform: translateY(0); filter: blur(0); }
.world-clock-dial { position: relative; display: block; flex: 0 0 clamp(3.2rem, 5.3vw, 4.15rem); width: clamp(3.2rem, 5.3vw, 4.15rem); aspect-ratio: 1; border: 1px solid rgba(255, 250, 238, 0.56); border-radius: 50%; background: rgba(15, 18, 20, 0.08); box-shadow: inset 0 0 0 3px rgba(255, 250, 238, 0.045); }
.world-clock-tick { position: absolute; top: 50%; left: 50%; width: 1px; height: 0.19rem; margin: -0.095rem 0 0 -0.5px; border-radius: 1px; background: rgba(255, 250, 238, 0.48); }
.world-clock-tick.is-major { height: 0.31rem; margin-top: -0.155rem; background: rgba(255, 250, 238, 0.7); }
.world-clock-hand { position: absolute; z-index: 1; bottom: 50%; left: 50%; display: block; border-radius: 2px; transform: translateX(-50%) rotate(0deg); transform-origin: 50% 100%; }
.world-clock-hand.is-hour { width: 2px; height: 23%; background: rgba(255, 250, 238, 0.88); }
.world-clock-hand.is-minute { width: 1.5px; height: 33%; background: rgba(255, 250, 238, 0.82); }
.world-clock-hand.is-second { width: 1px; height: 36%; background: rgba(216, 192, 150, 0.68); }
.world-clock-center { position: absolute; z-index: 2; top: 50%; left: 50%; width: 3px; height: 3px; border-radius: 50%; background: rgba(255, 250, 238, 0.9); transform: translate(-50%, -50%); }
.world-clock-label { display: grid; gap: 0.16rem; min-width: 0; font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0.075em; line-height: 1.25; }
.world-clock-city { overflow: hidden; color: rgba(255, 250, 238, 0.96); font-size: clamp(0.62rem, 0.78vw, 0.72rem); text-overflow: ellipsis; white-space: nowrap; }
.world-clock-country { color: rgba(255, 250, 238, 0.84); font-size: clamp(0.52rem, 0.64vw, 0.59rem); letter-spacing: 0.09em; text-transform: uppercase; }
.topbar, .controls { position: absolute; z-index: 3; right: var(--gutter); left: var(--gutter); display: flex; align-items: center; opacity: var(--text-opacity); }
.topbar { top: max(1rem, calc(env(safe-area-inset-top) + 0.6rem)); justify-content: space-between; }
.brand {
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border: 1px solid rgba(242, 238, 230, 0.56);
  border-radius: 50%;
  color: var(--ink);
  font-size: var(--type-small);
  font-weight: 500;
  letter-spacing: -0.08em;
  text-decoration: none;
  transition: border-color 0.25s ease, color 0.25s ease;
}
.brand span { color: #d39a7d; }
.brand:hover { border-color: #d39a7d; color: #e4b599; }
.top-meta { display: flex; align-items: center; gap: clamp(0.55rem, 1.5vw, 1.1rem); }
.countdown { display: flex; align-items: baseline; gap: 0.12em; color: rgba(255, 252, 245, 0.98); font: var(--type-small) var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0.015em; white-space: nowrap; text-shadow: 0 1px 3px rgba(0,0,0,.88), 0 0 8px rgba(0,0,0,.42); }
.countdown-part { display: inline-flex; align-items: baseline; gap: 0.1em; }
.countdown-unit { color: rgba(255, 252, 245, 0.78); font: 0.66em var(--mono); letter-spacing: 0.035em; }
.countdown-colon { color: rgba(250, 247, 239, 0.62); }
.top-divider { width: 1px; height: 11px; background: rgba(242, 238, 230, 0.22); }
.visit-counter { display: flex; align-items: baseline; gap: 0.42em; color: rgba(255, 252, 245, 0.94); font: var(--type-micro) var(--mono); white-space: nowrap; text-shadow: 0 1px 3px rgba(0,0,0,.88); }
.visit-label { color: rgba(255, 252, 245, 0.78); font-size: var(--type-micro); letter-spacing: 0.08em; }
.visit-value { min-width: 4ch; color: rgba(255, 252, 245, 0.9); font-variant-numeric: tabular-nums; text-align: right; }
.controls { bottom: max(1.15rem, calc(env(safe-area-inset-bottom) + 0.55rem)); display: flex; justify-content: space-between; gap: clamp(0.65rem, 2vw, 1.7rem); }
.sound-controls { position: relative; display: flex; align-items: center; gap: 0.8rem; }
.sound-toggle, .fullscreen-toggle, .sources-trigger, .utility-trigger {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 0.35rem;
  border: 0;
  background: transparent;
  color: rgba(255, 252, 245, 0.9);
  font-size: var(--type-small);
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease;
}
.sound-toggle, .fullscreen-toggle { width: 42px; min-width: 42px; padding: 0; flex: 0 0 42px; }
.footer-actions { display: flex; align-items: center; gap: clamp(0.15rem, 1.15vw, 0.8rem); }
.utility-trigger { min-width: 42px; padding: 0 0.3rem; font-size: var(--type-small); }
.control-icon { display: block; width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.icon-waves, .icon-mute-x, .icon-collapse { display: none; }
.sound-toggle[aria-pressed="true"] .icon-waves { display: block; }
.sound-toggle[aria-pressed="false"] .icon-mute-x { display: block; }
.fullscreen-toggle[aria-pressed="true"] .icon-expand { display: none; }
.fullscreen-toggle[aria-pressed="true"] .icon-collapse { display: block; }
#audio-status.audio-hint { position: absolute; z-index: 4; bottom: calc(100% + 0.55rem); left: 0; width: max-content; max-width: min(72vw, 22rem); height: auto; margin: 0; padding: 0; overflow: visible; clip: auto; clip-path: none; color: rgba(255, 252, 245, 0.92); font: var(--type-small) var(--mono); line-height: 1.4; white-space: normal; text-shadow: 0 1px 5px rgba(0,0,0,.95); }
.sound-toggle[aria-pressed="false"] { color: rgba(255, 252, 245, 0.58); }
.sound-toggle:hover, .fullscreen-toggle:hover, .sources-trigger:hover, .utility-trigger:hover { color: #e2b79e; }
.fullscreen-toggle[aria-pressed="true"] { color: #e2b79e; }
.sound-toggle, .fullscreen-toggle, .sources-trigger, .utility-trigger { text-shadow: 0 1px 3px rgba(0,0,0,.9), 0 0 8px rgba(0,0,0,.32); }
.volume-control { display: flex; align-items: center; min-height: 34px; }
.volume-control input { width: clamp(54px, 7vw, 86px); height: 20px; margin: 0; appearance: none; background: transparent; cursor: pointer; }
.volume-control input::-webkit-slider-runnable-track { height: 1px; background: rgba(242, 238, 230, 0.4); }
.volume-control input::-moz-range-track { height: 1px; background: rgba(242, 238, 230, 0.4); }
.volume-control input::-webkit-slider-thumb { width: 8px; height: 8px; margin-top: -3.5px; appearance: none; border: 0; border-radius: 50%; background: var(--ink); }
.volume-control input::-moz-range-thumb { width: 8px; height: 8px; border: 0; border-radius: 50%; background: var(--ink); }
.media-deck { position: fixed; z-index: -1; top: -2px; left: -2px; width: 1px; height: 1px; overflow: hidden; opacity: 0; pointer-events: none; }
.source-dialog { position: fixed; inset: 0; width: 100%; height: 100%; max-width: none; max-height: none; margin: 0; padding: 0; overflow: hidden; border: 0; background: transparent; color: var(--ink); }
.source-dialog::backdrop { background: rgba(8, 10, 10, 0.68); backdrop-filter: blur(1.4px); }
.source-dialog-content { position: absolute; top: clamp(4.5rem, 12vh, 7rem); right: var(--gutter); bottom: clamp(4.5rem, 12vh, 7rem); left: var(--gutter); max-width: 760px; margin: 0 auto; overflow: auto; overscroll-behavior: contain; padding: 0.2rem 0.7rem 1rem; opacity: var(--text-opacity); scrollbar-color: rgba(242,238,230,.34) transparent; }
.profile-dialog-content { top: 50%; right: auto; bottom: auto; left: 50%; width: min(30rem, calc(100vw - 2rem)); max-height: min(72vh, 32rem); margin: 0; padding: 0.2rem 0.8rem 1rem; transform: translate(-50%, -50%); }
.contact-dialog-content { width: min(38rem, calc(100vw - 2rem)); max-height: min(84vh, 48rem); }
.contact-form { display: grid; gap: 0.8rem; color: rgba(255,252,245,.94); font-size: var(--type-small); }
.contact-form label { display: grid; gap: 0.28rem; }
.contact-form label span, .contact-help { color: rgba(255,252,245,.65); font-size: var(--type-micro); }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid rgba(242,238,230,.3); border-radius: 0; background: rgba(10,12,12,.22); color: var(--ink); font: inherit; padding: 0.55rem 0.65rem; }
.contact-form textarea { min-height: 8rem; resize: vertical; line-height: 1.65; }
.contact-form input:focus-visible, .contact-form textarea:focus-visible { outline: 2px solid rgba(255,252,245,.75); outline-offset: 2px; }
.contact-help { margin: -0.45rem 0 0; line-height: 1.6; }
.contact-submit { justify-self: start; min-width: 5rem; border: 1px solid rgba(242,238,230,.36); background: transparent; color: var(--ink); font: var(--type-small) var(--mono); letter-spacing: 0.1em; padding: 0.42rem 0.75rem; cursor: pointer; }
.contact-submit:hover { background: rgba(242,238,230,.12); }
.contact-submit:disabled { opacity: .55; cursor: wait; }
.contact-status { min-height: 1.4em; margin: -0.45rem 0 0; color: rgba(255,252,245,.75); }
.contact-trap { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.profile-dialog-header { margin-bottom: 1.4rem; }
.profile-link-list { max-width: 34rem; margin: 0; }
.profile-link-list a { display: flex; min-height: 3.2rem; align-items: center; justify-content: space-between; gap: 1rem; border-top: 1px solid rgba(242,238,230,.14); color: rgba(255,252,245,.92); font-size: var(--type-body); text-decoration: none; }
.profile-link-list a:hover { color: #e2b79e; }
.profile-link-service { letter-spacing: 0.04em; }
.profile-link-address { color: rgba(255,252,245,.68); font: var(--type-small) var(--mono); overflow-wrap: anywhere; text-align: right; }
.source-dialog-header { display: flex; justify-content: space-between; align-items: start; gap: 1rem; margin-bottom: 2.2rem; }
.source-dialog-header h1 { margin: 0.4rem 0 0; font: 500 clamp(1.2rem, calc(1.05rem + 0.25vw + 0.22vh), 1.65rem) var(--mono); letter-spacing: 0.18em; }
.source-kicker { margin: 0; color: rgba(255,252,245,.86); font: var(--type-micro) var(--mono); letter-spacing: 0.08em; }
.source-close { padding: 0.4rem 0; border: 0; background: transparent; color: rgba(255,252,245,.96); font-size: var(--type-small); cursor: pointer; }
.source-close span { margin-left: 0.35rem; font: var(--type-equation) var(--sans); }
.source-section h2 { margin: 0 0 0.8rem; color: rgba(255,252,245,.86); font: var(--type-small) var(--mono); letter-spacing: 0.08em; }
.source-list { margin: 0; padding: 0; list-style: none; }
.source-entry { padding: 0.78rem 0; border-top: 1px solid rgba(242,238,230,.14); }
.source-state { display: flex; justify-content: space-between; gap: 0.8rem; margin: 0 0 0.35rem; color: rgba(255,252,245,.72); font: var(--type-micro) var(--mono); letter-spacing: 0.08em; }
.source-age { flex: none; color: rgba(255,252,245,.78); font-variant-numeric: tabular-nums; letter-spacing: 0.04em; }
.source-entry[data-current="true"] { border-top-color: rgba(216,179,156,.3); }
.source-entry[data-current="true"] .source-state { color: rgba(255,252,245,.92); }
.source-title { margin: 0; color: rgba(255,252,245,.98); font-size: var(--type-body); line-height: 1.55; overflow-wrap: anywhere; }
.source-meta { margin: 0.24rem 0 0; color: rgba(255,252,245,.88); font-size: var(--type-small); line-height: 1.6; overflow-wrap: anywhere; }
.source-change { color: rgba(255,252,245,.8); }
.source-links { display: flex; gap: 1rem; margin: 0.35rem 0 0; font-size: var(--type-small); }
.source-links a { color: #d8b39c; text-underline-offset: 2px; }
.source-all { margin-top: 1.5rem; border-top: 1px solid rgba(242,238,230,.14); }
.source-all summary { padding: 0.9rem 0; color: rgba(255,252,245,.94); font-size: var(--type-body); cursor: pointer; }
.source-all[open] { max-height: 56vh; overflow: auto; overscroll-behavior: contain; }
.source-all .source-entry { padding: 0.55rem 0; }
.signal-note-record { max-width: 720px; padding: 0 0 1rem; color: rgba(255,252,245,.84); font-size: var(--type-small); line-height: 1.75; }
.signal-note-record h2 { margin: 1.1rem 0 0.4rem; color: rgba(255,252,245,.76); font: var(--type-micro) var(--mono); letter-spacing: 0.1em; }
.signal-note-record p { margin: 0.45rem 0; }
.signal-note-links { display: flex; flex-wrap: wrap; gap: 0.65rem 1rem; }
.signal-note-links a { color: #d8b39c; text-underline-offset: 2px; }
.quote-source-entry { padding: 0.4rem 0; border-bottom: 1px solid rgba(242, 238, 230, 0.08); }
.quote-source-entry blockquote { margin: 0; color: rgba(255, 252, 245, 0.96); font-family: Georgia, "Times New Roman", "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: var(--type-body); line-height: 1.72; }
.quote-source-entry blockquote:lang(ja), .quote-source-entry blockquote:lang(zh) { font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif CJK JP", "Noto Serif JP", serif; }
.quote-source-entry .source-meta { margin: 0.22rem 0 0; }
.skip-link { position: fixed; z-index: 10; top: 0.75rem; left: 0.75rem; padding: 0.6rem 0.85rem; transform: translateY(-160%); background: var(--ink); color: #171715; }
.skip-link:focus { transform: translateY(0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; clip-path: inset(50%); border: 0; }
:focus-visible { outline: 1px solid #e0b198; outline-offset: 4px; }
@media (max-width: 620px) {
  .world-clock { gap: 0.52rem; max-width: min(12rem, 48vw); }
  .world-clock-dial { flex-basis: 3.35rem; width: 3.35rem; }
  .world-clock-city { font-size: 0.64rem; }
  .world-clock-country { font-size: 0.54rem; }
  .brand { width: 28px; height: 28px; }
  .controls { gap: 0.35rem; }
  .sound-controls { gap: 0.3rem; }
  .sound-toggle, .fullscreen-toggle { width: 44px; min-width: 44px; height: 44px; flex-basis: 44px; }
  .control-icon { width: 23px; height: 23px; }
  .sound-toggle, .fullscreen-toggle, .sources-trigger, .utility-trigger { font-size: var(--type-small); }
  .volume-control input { width: 52px; }
  .signal-readings { top: 12vh; left: 5vw; width: 78vw; font-size: var(--type-signal); gap: 0.52rem; }
  .signal-row { grid-template-columns: 1.7rem auto; gap: 0.52rem; }
  .signal-mark { font-size: var(--type-small); }
  .signal-equation { right: 5vw; bottom: 18vh; width: 88vw; font-size: var(--type-equation); }
  .quote-field { max-width: 86vw; }
  .quote-text { font-size: var(--type-quote); line-height: 1.62; }
  .quote-attribution { margin-top: 0.7rem; font-size: var(--type-small); }
  .quote-field[data-placement="upper"] { top: 28vh; }
  .quote-field[data-placement="middle"] { top: 47vh; }
  .quote-field[data-placement="lower"] { bottom: 26vh; }
  .quote-field[data-side="left"] { left: 5vw; right: auto; }
  .quote-field[data-side="right"] { right: 5vw; left: auto; }
  .quote-field[data-orientation="vertical"] { top: 24vh; max-height: clamp(12rem, 34vh, 20rem); }
  .quote-field[data-orientation="vertical"][data-placement="upper"] { top: 24vh; }
  .quote-field[data-orientation="vertical"][data-placement="middle"] { top: 43vh; }
  .quote-field[data-orientation="vertical"][data-placement="lower"] { bottom: 26vh; }
  .quote-field[data-orientation="vertical"] .quote-text { max-height: clamp(12rem, 36vh, 20rem); font-size: var(--type-quote); }
  .countdown { font-size: var(--type-small); }
  .countdown-unit { font-size: var(--type-micro); }
  .visit-counter { font-size: var(--type-micro); }
  .source-title { font-size: var(--type-body); }
  .source-meta, .source-links { font-size: var(--type-small); }
  .source-all summary { font-size: var(--type-body); }
  .signal-note-record { font-size: var(--type-small); }
  .quote-source-entry blockquote { font-size: var(--type-body); }
  #source-dialog .source-dialog-content { top: max(3.8rem, env(safe-area-inset-top)); right: 0.9rem; bottom: max(4rem, env(safe-area-inset-bottom)); left: 0.9rem; padding-right: 0.3rem; padding-left: 0.3rem; }
}
@media (max-width: 620px) and (max-height: 650px) {
  .signal-equation { bottom: 10vh; }
  .quote-field[data-placement="middle"] { top: 45vh; }
}
@media (max-width: 400px) {
  .topbar { top: max(1rem, calc(env(safe-area-inset-top) + 0.6rem)); }
  .top-meta { gap: 0.38rem; }
  .countdown { gap: 0.08em; font-size: var(--type-micro); }
  .countdown-part { gap: 0.07em; }
  .countdown-unit { font-size: 0.62em; }
  .top-divider, .visit-label { display: none; }
  .visit-counter { font-size: var(--type-micro); }
  .visit-value { min-width: 3ch; }
  .controls { right: 0.65rem; left: 0.65rem; gap: 0.1rem; }
  .sound-controls { gap: 0.12rem; }
  .footer-actions { gap: 0; }
  .utility-trigger { min-width: 0; padding-right: 0.22rem; padding-left: 0.22rem; font-size: 0.68rem; }
  .sources-trigger { padding-right: 0.22rem; padding-left: 0.22rem; font-size: 0.68rem; }
  .volume-control input { width: 42px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
  #art-transition { transition-duration: 320ms !important; }
  .signal-readings, .signal-equation { animation: none; }
  .quote-field { transition: opacity 0.01ms !important; transform: none; }
  .world-clock { transition: opacity 0.01ms !important; transform: none; filter: none; }
  .world-clock-hand.is-second { display: none; }
  .signal-equation-step, .signal-equation-step.is-visible, .signal-equation-step.is-resolved, .signal-equation-step.is-distant, .signal-equation-step.is-retiring { transform: none; filter: none; transition: opacity 900ms ease !important; }
}