:root {
  --ink: #121823;
  --ink-soft: #57647b;
  --line: rgba(18, 24, 35, 0.12);
  --line-strong: rgba(255, 255, 255, 0.16);
  --navy: #0c1320;
  --navy-soft: #162030;
  --cream: rgba(255, 250, 243, 0.78);
  --cream-strong: rgba(255, 247, 238, 0.9);
  --shadow-lg: 0 30px 80px rgba(12, 19, 32, 0.14);
  --shadow-md: 0 18px 44px rgba(12, 19, 32, 0.1);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --content-width: 1240px;
  --shell-gutter: 24px;
  --shell-gutter-md: 18px;
  --shell-gutter-sm: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  --bg-top: #eee3d4;
  --bg-bottom: #f8f1e7;
  --mesh-a: rgba(255, 158, 95, 0.22);
  --mesh-b: rgba(118, 210, 255, 0.18);
  --mesh-c: rgba(255, 224, 165, 0.22);
  --overlay-a: rgba(255, 146, 77, 0.18);
  --overlay-b: rgba(110, 221, 255, 0.12);
  --accent: #ef8d56;
  --accent-soft: #ffc799;
  --accent-rgb: 239, 141, 86;
  --progress: 52%;
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
  background:
    radial-gradient(circle at 7% 10%, var(--mesh-a), transparent 24%),
    radial-gradient(circle at 89% 12%, var(--mesh-b), transparent 22%),
    radial-gradient(circle at 74% 79%, var(--mesh-c), transparent 20%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
  transition: background 360ms ease, color 220ms ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.18)),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 88px,
      rgba(18, 24, 35, 0.04) 88px,
      rgba(18, 24, 35, 0.04) 89px
    ),
    repeating-linear-gradient(
      180deg,
      transparent 0,
      transparent 88px,
      rgba(18, 24, 35, 0.04) 88px,
      rgba(18, 24, 35, 0.04) 89px
    );
  mix-blend-mode: soft-light;
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 82% 18%, var(--overlay-a), transparent 26%),
    radial-gradient(circle at 14% 76%, var(--overlay-b), transparent 28%);
  mix-blend-mode: screen;
  opacity: 0.94;
  pointer-events: none;
}

body[data-temp-band="freeze"] {
  --bg-top: #dcecf9;
  --bg-bottom: #eef7fd;
  --mesh-a: rgba(111, 181, 255, 0.24);
  --mesh-b: rgba(184, 231, 255, 0.28);
  --mesh-c: rgba(210, 241, 255, 0.24);
  --overlay-a: rgba(255, 255, 255, 0.08);
  --overlay-b: rgba(111, 184, 255, 0.18);
  --accent: #6aaeff;
  --accent-soft: #c2e4ff;
  --accent-rgb: 106, 174, 255;
}

body[data-temp-band="cool"] {
  --bg-top: #e4f1f5;
  --bg-bottom: #f4fbfc;
  --mesh-a: rgba(96, 188, 230, 0.2);
  --mesh-b: rgba(151, 225, 255, 0.24);
  --mesh-c: rgba(176, 242, 232, 0.2);
  --overlay-a: rgba(255, 255, 255, 0.1);
  --overlay-b: rgba(120, 220, 255, 0.16);
  --accent: #4eb9d7;
  --accent-soft: #aaf0ff;
  --accent-rgb: 78, 185, 215;
}

body[data-temp-band="neutral"] {
  --bg-top: #eee3d4;
  --bg-bottom: #f8f1e7;
  --mesh-a: rgba(255, 158, 95, 0.22);
  --mesh-b: rgba(118, 210, 255, 0.18);
  --mesh-c: rgba(255, 224, 165, 0.22);
  --overlay-a: rgba(255, 146, 77, 0.18);
  --overlay-b: rgba(110, 221, 255, 0.12);
  --accent: #ef8d56;
  --accent-soft: #ffc799;
  --accent-rgb: 239, 141, 86;
}

body[data-temp-band="warm"] {
  --bg-top: #f3dece;
  --bg-bottom: #f9ede1;
  --mesh-a: rgba(247, 134, 82, 0.28);
  --mesh-b: rgba(255, 209, 151, 0.22);
  --mesh-c: rgba(255, 173, 112, 0.16);
  --overlay-a: rgba(255, 140, 75, 0.24);
  --overlay-b: rgba(255, 244, 223, 0.08);
  --accent: #f0834d;
  --accent-soft: #ffc28d;
  --accent-rgb: 240, 131, 77;
}

body[data-temp-band="hot"] {
  --bg-top: #f1d0c2;
  --bg-bottom: #f7e4d9;
  --mesh-a: rgba(233, 103, 67, 0.32);
  --mesh-b: rgba(255, 176, 108, 0.24);
  --mesh-c: rgba(255, 126, 87, 0.18);
  --overlay-a: rgba(255, 115, 60, 0.28);
  --overlay-b: rgba(255, 239, 221, 0.06);
  --accent: #e86a42;
  --accent-soft: #ffb280;
  --accent-rgb: 232, 106, 66;
}

body[data-temp-band="extreme"] {
  --bg-top: #e7c0b1;
  --bg-bottom: #f2dbcg;
  --mesh-a: rgba(217, 72, 46, 0.38);
  --mesh-b: rgba(255, 148, 72, 0.24);
  --mesh-c: rgba(208, 72, 58, 0.22);
  --overlay-a: rgba(224, 76, 44, 0.34);
  --overlay-b: rgba(255, 229, 203, 0.05);
  --accent: #d95234;
  --accent-soft: #ff9d70;
  --accent-rgb: 217, 82, 52;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(calc(100% - var(--shell-gutter)), var(--content-width));
  margin: 0 auto;
  padding: 28px 0 72px;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 8px 0 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 76px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(12, 19, 32, 0.95);
  color: #fff;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.84rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-name,
.header-note,
.tool-link,
.eyebrow,
.section-kicker,
.field-label,
.support-label,
.card-tag,
.table-note,
.status-chip,
.result-caption,
.quick-meta,
.micro-note,
.threshold-label,
.related-card span,
.formula-inline,
.hero-stat span,
.meter-label,
.legend-chip,
.entry-meta,
.empty-state strong {
  font-family: "IBM Plex Mono", monospace;
}

.brand-name {
  color: var(--ink-soft);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.tool-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.tool-link {
  padding: 10px 14px;
  border: 1px solid rgba(18, 24, 35, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.34);
  color: var(--ink-soft);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease, color 180ms ease;
}

.tool-link:hover,
.tool-link:focus-visible,
.tool-link.active {
  border-color: rgba(12, 19, 32, 0.94);
  background: rgba(12, 19, 32, 0.94);
  color: #fff8f0;
  transform: translateY(-1px);
}

.hero-split,
.catalog-grid,
.section-grid,
.reference-layout,
.support-grid,
.comparison-grid,
.batch-layout {
  display: grid;
  gap: 24px;
}

.hero-split {
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  align-items: stretch;
}

.story-panel,
.light-card,
.table-shell,
.tool-card,
.status-board,
.comparison-card,
.equal-card,
.result-list,
.result-entry,
.faq-card,
.support-card {
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.story-panel,
.light-card,
.tool-card,
.comparison-card,
.equal-card,
.result-list,
.faq-card,
.support-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(18, 24, 35, 0.08);
  border-radius: var(--radius-xl);
  background: linear-gradient(150deg, rgba(255, 250, 243, 0.84), rgba(255, 247, 238, 0.58));
  box-shadow: var(--shadow-lg);
}

.story-panel,
.light-card,
.comparison-card,
.equal-card,
.faq-card,
.support-card {
  padding: 28px;
}

.story-panel::after,
.light-card::after,
.tool-card::after,
.comparison-card::after,
.equal-card::after,
.result-list::after,
.faq-card::after,
.support-card::after {
  content: "";
  position: absolute;
  inset: auto -50px -54px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.14), transparent 68%);
  pointer-events: none;
}

.tool-panel,
.dark-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    linear-gradient(180deg, rgba(13, 20, 33, 0.98), rgba(21, 31, 47, 0.98));
  box-shadow:
    0 34px 90px rgba(12, 19, 32, 0.26),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  color: #fff8f0;
}

.tool-panel::before,
.dark-card::before {
  content: "";
  position: absolute;
  inset: -70px auto auto -44px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.18), transparent 68%);
  pointer-events: none;
}

.tool-panel::after,
.dark-card::after {
  content: "";
  position: absolute;
  inset: auto -44px -62px auto;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.16), transparent 68%);
  pointer-events: none;
}

.tool-panel {
  padding: 26px;
}

.eyebrow,
.section-kicker,
.field-label,
.support-label,
.card-tag,
.status-chip,
.micro-note,
.threshold-label,
.result-caption,
.meter-label,
.legend-chip,
.entry-meta {
  margin: 0 0 14px;
  color: var(--ink-soft);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.tool-panel .field-label,
.tool-panel .micro-note,
.tool-panel .status-chip,
.tool-panel .meter-label,
.tool-panel .entry-meta,
.tool-panel .support-label {
  color: rgba(255, 255, 255, 0.66);
}

.page-title,
.section-title,
.equal-card h2,
.tool-card h3,
.support-card h3,
.comparison-card h2,
.faq-card h2 {
  margin: 0;
  font-family: "Fraunces", serif;
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.page-title {
  max-width: 9.6ch;
  font-size: clamp(2.65rem, 5.8vw, 4.9rem);
}

.page-title span {
  display: block;
}

.section-title,
.faq-card h2,
.comparison-card h2 {
  font-size: clamp(1.95rem, 4vw, 3rem);
}

.tool-card h3,
.support-card h3,
.equal-card h2 {
  font-size: clamp(1.55rem, 3vw, 2.1rem);
}

.lead,
.body-copy,
.hero-stat p,
.tool-card p,
.support-card p,
.faq-list p,
.status-note,
.comparison-note,
.legend-list p,
.table-note,
.empty-state,
.entry-conversions,
.hero-footnote {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.72;
}

.story-panel .lead {
  max-width: 36rem;
  margin-top: 18px;
  color: rgba(18, 24, 35, 0.9);
  font-size: 1.03rem;
}

.hero-stats {
  display: grid;
  gap: 12px;
  margin: 26px 0 18px;
}

.hero-stat {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  padding-top: 12px;
  border-top: 1px solid rgba(18, 24, 35, 0.08);
}

.hero-stat span {
  color: rgba(var(--accent-rgb), 0.92);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
}

.hero-footnote {
  max-width: 35rem;
  font-size: 0.95rem;
}

.control-grid,
.output-grid,
.quick-grid,
.catalog-grid,
.threshold-grid,
.mini-metrics,
.related-grid {
  display: grid;
  gap: 14px;
}

.control-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.control {
  display: grid;
  gap: 10px;
}

.text-input,
.select-input,
.text-area {
  width: 100%;
  min-height: 64px;
  padding: 0 18px;
  border: 1px solid rgba(18, 24, 35, 0.1);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
  outline: none;
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.select-input {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 56px;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(18, 24, 35, 0.78) 50%),
    linear-gradient(135deg, rgba(18, 24, 35, 0.78) 50%, transparent 50%);
  background-position:
    calc(100% - 24px) calc(50% - 3px),
    calc(100% - 18px) calc(50% - 3px);
  background-size: 7px 7px, 7px 7px;
  background-repeat: no-repeat;
}

.tool-panel .text-input,
.tool-panel .select-input,
.tool-panel .text-area,
.dark-card .text-input,
.dark-card .select-input,
.dark-card .text-area {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.tool-panel .select-input,
.dark-card .select-input {
  color-scheme: dark;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(255, 255, 255, 0.86) 50%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.86) 50%, transparent 50%);
}

.select-input option,
.select-input optgroup {
  color: var(--ink);
  background: #fffaf3;
}

.tool-panel .select-input option,
.tool-panel .select-input optgroup,
.dark-card .select-input option,
.dark-card .select-input optgroup {
  color: #121823;
  background: #fffaf3;
}

.text-input::placeholder,
.text-area::placeholder {
  color: rgba(87, 100, 123, 0.72);
}

.tool-panel .text-input::placeholder,
.tool-panel .text-area::placeholder,
.dark-card .text-input::placeholder,
.dark-card .text-area::placeholder {
  color: rgba(255, 255, 255, 0.34);
}

.text-input:focus,
.select-input:focus,
.text-area:focus {
  border-color: rgba(var(--accent-rgb), 0.7);
  transform: translateY(-1px);
}

.text-input,
.select-input {
  font-size: 1.04rem;
}

.unit-switch {
  display: grid;
  gap: 10px;
  padding: 10px;
  border: 1px solid rgba(18, 24, 35, 0.08);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.58)),
    rgba(255, 255, 255, 0.58);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    0 10px 24px rgba(18, 24, 35, 0.06);
}

.tool-panel .unit-switch,
.dark-card .unit-switch {
  border-color: rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.04);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 14px 34px rgba(0, 0, 0, 0.16);
}

.unit-switch-quad {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.unit-switch-duo {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.unit-choice {
  position: relative;
  display: grid;
  gap: 6px;
  justify-items: start;
  min-height: 78px;
  padding: 14px 16px;
  border: 1px solid transparent;
  border-radius: 18px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition:
    transform 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease;
}

.tool-panel .unit-choice,
.dark-card .unit-choice {
  color: rgba(255, 255, 255, 0.92);
}

.unit-choice:hover,
.unit-choice:focus-visible {
  transform: translateY(-1px);
}

.unit-choice[data-active="true"] {
  border-color: rgba(var(--accent-rgb), 0.34);
  background:
    linear-gradient(145deg, rgba(var(--accent-rgb), 0.2), rgba(255, 255, 255, 0.72)),
    rgba(255, 255, 255, 0.88);
  box-shadow:
    0 12px 28px rgba(var(--accent-rgb), 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.82);
  color: var(--ink);
}

.tool-panel .unit-choice[data-active="true"],
.dark-card .unit-choice[data-active="true"] {
  background:
    linear-gradient(145deg, rgba(var(--accent-rgb), 0.28), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(var(--accent-rgb), 0.56);
  box-shadow:
    0 16px 34px rgba(0, 0, 0, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.unit-choice-name,
.unit-choice-symbol {
  display: block;
}

.unit-choice-name {
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.unit-choice-symbol {
  color: var(--ink-soft);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tool-panel .unit-choice-symbol,
.dark-card .unit-choice-symbol {
  color: rgba(255, 255, 255, 0.58);
}

.unit-choice[data-active="true"] .unit-choice-symbol {
  color: rgba(18, 24, 35, 0.72);
}

.tool-panel .unit-choice[data-active="true"] .unit-choice-symbol,
.dark-card .unit-choice[data-active="true"] .unit-choice-symbol {
  color: rgba(255, 255, 255, 0.74);
}

.text-area {
  min-height: 244px;
  padding-top: 16px;
  padding-bottom: 16px;
  resize: vertical;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.ghost-button,
.quick-button {
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.ghost-button {
  min-height: 52px;
  padding: 0 18px;
  background: rgba(18, 24, 35, 0.08);
  color: var(--ink);
}

.tool-panel .ghost-button,
.dark-card .ghost-button {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.ghost-button:hover,
.ghost-button:focus-visible,
.quick-button:hover,
.quick-button:focus-visible {
  transform: translateY(-1px);
}

.quick-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.quick-button {
  display: grid;
  gap: 6px;
  justify-items: start;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.quick-button strong {
  font-size: 0.98rem;
}

.quick-meta {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.micro-note {
  min-height: 20px;
  line-height: 1.6;
}

.message-line {
  min-height: 22px;
  color: #ffd7c6;
  font-size: 0.92rem;
  line-height: 1.6;
}

.converter-stage {
  display: grid;
  gap: 18px;
}

.source-band {
  display: grid;
  gap: 18px;
  padding: 20px;
  border-radius: 28px;
  background:
    radial-gradient(circle at top, rgba(var(--accent-rgb), 0.16), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(0, 0, 0, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.source-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
}

.unit-pill {
  padding: 10px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: var(--navy);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.source-value {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.source-value strong,
.metric-value strong,
.comparison-values strong,
.equal-value strong,
.batch-stat strong {
  font-family: "Fraunces", serif;
  font-size: clamp(3.2rem, 7vw, 5.2rem);
  line-height: 0.88;
  letter-spacing: -0.06em;
}

.source-value span,
.metric-value span,
.comparison-values span,
.equal-value span {
  padding-bottom: 10px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1rem;
}

.summary-line {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.64;
}

.temperature-meter {
  display: grid;
  gap: 10px;
}

.meter-track {
  position: relative;
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.meter-fill {
  width: var(--progress);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-soft), var(--accent));
}

.meter-labels {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  color: rgba(255, 255, 255, 0.48);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
}

.output-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.output-card,
.threshold-card,
.metric-card,
.legend-list,
.result-entry {
  border-radius: var(--radius-md);
}

.output-card {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
}

.output-unit {
  display: block;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.56);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.output-value {
  display: block;
  margin-bottom: 6px;
  color: #fff;
  font-size: 1.34rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.output-note {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.88rem;
  line-height: 1.55;
}

.context-ribbon {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
}

.context-ribbon strong {
  color: #fff;
  font-size: 0.96rem;
  letter-spacing: 0.02em;
}

.context-ribbon p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.62;
}

.section-block {
  margin-top: 30px;
}

.catalog-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tool-card {
  padding: 22px;
}

.card-tag {
  color: rgba(var(--accent-rgb), 1);
  font-size: 0.74rem;
}

.tool-card p {
  margin-top: 10px;
}

.section-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.formula-inline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 999px;
  background: rgba(18, 24, 35, 0.06);
  color: var(--ink);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.table-shell {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(255, 250, 243, 0.8);
  box-shadow: var(--shadow-md);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 18px 20px;
  text-align: left;
  border-bottom: 1px solid rgba(18, 24, 35, 0.08);
}

thead th {
  background: rgba(18, 24, 35, 0.04);
  color: var(--ink-soft);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody tr:hover {
  background: rgba(255, 255, 255, 0.46);
}

.table-note {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.reference-layout {
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
  align-items: start;
}

.legend-list,
.threshold-card,
.metric-card,
.status-board,
.support-card {
  position: relative;
  overflow: hidden;
}

.legend-list,
.threshold-card,
.metric-card,
.status-board,
.support-card {
  padding: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(255, 250, 243, 0.82), rgba(255, 247, 238, 0.6));
  box-shadow: var(--shadow-md);
}

.legend-list {
  display: grid;
  gap: 12px;
  border-radius: var(--radius-xl);
}

.legend-chip {
  display: inline-flex;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(18, 24, 35, 0.06);
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.support-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.status-board {
  border-radius: 28px;
}

.status-chip {
  color: rgba(var(--accent-rgb), 1);
  font-size: 0.74rem;
}

.status-heading {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
}

.status-label {
  margin: 0;
  color: var(--ink);
  font-family: "Fraunces", serif;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.status-board[data-level="normal"] {
  background: linear-gradient(150deg, rgba(241, 252, 245, 0.84), rgba(255, 255, 255, 0.66));
}

.status-board[data-level="low"] {
  background: linear-gradient(150deg, rgba(255, 247, 220, 0.86), rgba(255, 255, 255, 0.66));
}

.status-board[data-level="fever"] {
  background: linear-gradient(150deg, rgba(255, 232, 217, 0.86), rgba(255, 255, 255, 0.66));
}

.status-board[data-level="high"] {
  background: linear-gradient(150deg, rgba(255, 216, 205, 0.88), rgba(255, 255, 255, 0.66));
}

.mini-metrics {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.metric-card {
  padding: 16px;
  border: 1px solid rgba(18, 24, 35, 0.08);
  background: rgba(255, 255, 255, 0.56);
}

.metric-value {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.metric-value strong {
  font-size: clamp(2.2rem, 5vw, 3rem);
}

.metric-value span {
  color: var(--ink-soft);
}

.status-note,
.comparison-note {
  margin-top: 16px;
}

.threshold-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.threshold-card {
  border-radius: var(--radius-md);
}

.threshold-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1rem;
}

.comparison-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 1.05fr);
  align-items: start;
}

.comparison-card {
  padding: 24px;
}

.range-wrap {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.range-input {
  width: 100%;
  accent-color: var(--accent);
}

.comparison-values {
  display: grid;
  gap: 10px;
  padding: 20px;
  border-radius: 28px;
  background: rgba(18, 24, 35, 0.06);
}

.comparison-values .source-value span {
  color: var(--ink-soft);
}

.comparison-values .value-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
}

.comparison-rail {
  position: relative;
  height: 18px;
  border-radius: 999px;
  background: rgba(18, 24, 35, 0.08);
  overflow: hidden;
}

.comparison-fill {
  width: var(--progress);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-soft), var(--accent));
}

.comparison-labels {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  color: var(--ink-soft);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
}

.comparison-pair {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.pair-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(18, 24, 35, 0.08);
}

.pair-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.equal-stage {
  display: grid;
  gap: 24px;
}

.equal-card {
  padding: clamp(28px, 4vw, 52px);
  text-align: center;
}

.equal-orbit {
  display: grid;
  gap: 18px;
  justify-items: center;
  padding: 30px 20px;
  border-radius: 30px;
  background:
    radial-gradient(circle at center, rgba(var(--accent-rgb), 0.14), transparent 40%),
    rgba(18, 24, 35, 0.04);
}

.equal-value {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.equal-divider {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: var(--navy);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.86rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  animation: pulse-ring 2.6s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.22);
  }

  50% {
    transform: scale(1.04);
    box-shadow: 0 0 0 16px rgba(var(--accent-rgb), 0);
  }
}

.batch-layout {
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  align-items: start;
}

.result-list {
  padding: 22px;
}

.batch-summary {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  margin-bottom: 16px;
}

.batch-stat {
  display: grid;
  gap: 6px;
}

.batch-stat strong {
  font-size: clamp(2rem, 5vw, 2.8rem);
}

.batch-stat span {
  color: var(--ink-soft);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.result-rows {
  display: grid;
  gap: 12px;
}

.result-entry {
  padding: 16px;
  border: 1px solid rgba(18, 24, 35, 0.08);
  background: rgba(255, 255, 255, 0.54);
}

.entry-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 8px;
}

.entry-source {
  font-weight: 700;
}

.entry-meta {
  color: rgba(var(--accent-rgb), 1);
  font-size: 0.72rem;
}

.entry-conversions {
  font-size: 0.94rem;
}

.empty-state {
  padding: 20px;
  border: 1px dashed rgba(18, 24, 35, 0.16);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.42);
}

.empty-state strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.home-main {
  display: grid;
  gap: 30px;
}

.home-stage,
.home-strata,
.home-reference-grid,
.mini-tool-grid,
.tool-atlas,
.home-output-grid,
.console-controls,
.preset-ribbon {
  display: grid;
  gap: 24px;
}

.home-stage {
  grid-template-columns: minmax(320px, 0.88fr) minmax(0, 1.12fr);
  align-items: stretch;
}

.home-editorial {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 3.8vw, 44px);
  border: 1px solid rgba(18, 24, 35, 0.08);
  border-radius: 42px;
  background:
    linear-gradient(150deg, rgba(255, 250, 243, 0.88), rgba(255, 247, 238, 0.62)),
    rgba(255, 255, 255, 0.46);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.home-editorial::before {
  content: "";
  position: absolute;
  inset: auto auto -72px -62px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.2), transparent 72%);
}

.home-editorial::after {
  content: "";
  position: absolute;
  inset: 28px 28px auto auto;
  width: 120px;
  height: 120px;
  border-radius: 28px;
  border: 1px solid rgba(18, 24, 35, 0.06);
  transform: rotate(12deg);
}

.home-title {
  margin: 0;
  max-width: 10ch;
  font-family: "Fraunces", serif;
  font-size: clamp(3.05rem, 6.8vw, 6.2rem);
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.home-title span {
  display: block;
  color: rgba(18, 24, 35, 0.78);
}

.home-manifest {
  display: grid;
  gap: 14px;
  margin: 30px 0 22px;
}

.manifest-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding-top: 14px;
  border-top: 1px solid rgba(18, 24, 35, 0.08);
}

.manifest-row span {
  color: rgba(var(--accent-rgb), 0.92);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
}

.manifest-row p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.68;
}

.signal-strip {
  display: grid;
  gap: 14px;
}

.signal-strip p {
  margin: 0;
  max-width: 34rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.66;
}

.signal-line {
  position: relative;
  height: 14px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, rgba(var(--accent-rgb), 0.16), rgba(255, 255, 255, 0)),
    rgba(18, 24, 35, 0.06);
  overflow: hidden;
}

.signal-line::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--progress);
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-soft), var(--accent));
}

.home-console {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 42px;
  background:
    radial-gradient(circle at 12% 18%, rgba(var(--accent-rgb), 0.18), transparent 26%),
    radial-gradient(circle at 86% 84%, rgba(var(--accent-rgb), 0.14), transparent 28%),
    linear-gradient(180deg, rgba(12, 19, 32, 0.98), rgba(20, 31, 48, 0.98));
  box-shadow:
    0 42px 110px rgba(12, 19, 32, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.home-console::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 68px,
      rgba(255, 255, 255, 0.03) 68px,
      rgba(255, 255, 255, 0.03) 69px
    ),
    repeating-linear-gradient(
      180deg,
      transparent 0,
      transparent 68px,
      rgba(255, 255, 255, 0.03) 68px,
      rgba(255, 255, 255, 0.03) 69px
    );
  pointer-events: none;
}

.home-console .field-label,
.home-console .micro-note,
.home-console .result-caption,
.home-console .quick-meta {
  color: rgba(255, 255, 255, 0.62);
}

.home-console .unit-switch {
  border-color: rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.04);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 14px 34px rgba(0, 0, 0, 0.16);
}

.home-console .unit-choice {
  color: rgba(255, 255, 255, 0.92);
}

.home-console .unit-choice[data-active="true"] {
  background:
    linear-gradient(145deg, rgba(var(--accent-rgb), 0.28), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(var(--accent-rgb), 0.56);
  box-shadow:
    0 16px 34px rgba(0, 0, 0, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.home-console .unit-choice-symbol {
  color: rgba(255, 255, 255, 0.58);
}

.home-console .unit-choice[data-active="true"] .unit-choice-symbol {
  color: rgba(255, 255, 255, 0.74);
}

.console-shell {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 20px;
  padding: 30px;
}

.console-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.console-status {
  margin: 0;
  color: #fff;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.94rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.console-flag {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.68);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.console-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 120px;
  gap: 18px;
  align-items: stretch;
}

.hero-readout {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 34px;
  background:
    radial-gradient(circle at top, rgba(var(--accent-rgb), 0.12), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(0, 0, 0, 0.12);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 14px 32px rgba(0, 0, 0, 0.18);
}

.hero-kicker {
  margin: 0;
  color: rgba(255, 255, 255, 0.52);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-figure {
  display: flex;
  align-items: flex-end;
  gap: 14px;
}

.hero-figure strong {
  font-family: "Fraunces", serif;
  font-size: clamp(4.3rem, 9vw, 7rem);
  line-height: 0.84;
  letter-spacing: -0.07em;
}

.hero-unit {
  padding-bottom: 14px;
  color: rgba(255, 255, 255, 0.72);
  font-family: "IBM Plex Mono", monospace;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-summary {
  margin: 0;
  max-width: 30rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.98rem;
  line-height: 1.68;
}

.equation-ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.equation-ribbon span {
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.62);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.thermal-tower {
  display: grid;
  justify-items: center;
  gap: 16px;
  padding: 20px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    rgba(0, 0, 0, 0.14);
}

.thermal-rail {
  position: relative;
  width: 22px;
  height: 310px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.thermal-fluid {
  position: absolute;
  inset: auto 0 0;
  height: var(--progress);
  border-radius: inherit;
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  box-shadow: 0 0 24px rgba(var(--accent-rgb), 0.3);
}

.thermal-cap {
  position: absolute;
  left: 50%;
  bottom: calc(var(--progress) - 4px);
  width: 38px;
  height: 10px;
  border-radius: 999px;
  background: #fff;
  transform: translateX(-50%);
  box-shadow: 0 0 18px rgba(255, 255, 255, 0.34);
}

.thermal-steps {
  display: grid;
  gap: 12px;
  color: rgba(255, 255, 255, 0.5);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
}

.console-controls {
  grid-template-columns: minmax(0, 0.88fr) minmax(280px, 1.12fr);
  align-items: start;
}

.input-module,
.switch-module {
  display: grid;
  gap: 12px;
}

.input-frame {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.home-input {
  min-height: 74px;
  padding: 0 22px;
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 1.18rem;
  font-weight: 600;
}

.home-input::placeholder {
  color: rgba(255, 255, 255, 0.34);
}

.home-clear {
  min-width: 96px;
  min-height: 74px;
  border: 0;
  border-radius: 20px;
  background:
    linear-gradient(145deg, rgba(var(--accent-rgb), 0.26), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.home-clear:hover,
.home-clear:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.16);
}

.home-switch {
  gap: 12px;
  padding: 12px;
}

.home-switch .unit-choice {
  min-height: 86px;
  padding: 16px 18px;
}

.home-message {
  min-height: 22px;
}

.home-output-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  grid-auto-rows: minmax(138px, auto);
}

.home-output-grid .output-card {
  display: grid;
  gap: 10px;
  align-content: end;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(0, 0, 0, 0.12);
}

.home-output-grid .output-card--lead {
  grid-row: 1 / span 2;
  padding: 24px;
  background:
    radial-gradient(circle at top, rgba(var(--accent-rgb), 0.14), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(0, 0, 0, 0.18);
}

.home-output-grid .output-unit {
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
}

.home-output-grid .output-value {
  margin: 0;
  color: #fff;
  font-family: "Fraunces", serif;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.05em;
}

.home-output-grid .output-card--lead .output-value {
  font-size: clamp(3rem, 6vw, 4.6rem);
}

.home-output-grid .output-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.58;
}

.context-band {
  display: grid;
  gap: 10px;
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  background:
    linear-gradient(90deg, rgba(var(--accent-rgb), 0.16), rgba(255, 255, 255, 0.02)),
    rgba(255, 255, 255, 0.03);
}

.context-band strong {
  color: #fff;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.context-band p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.64;
}

.preset-ribbon {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.preset-chip {
  min-height: 86px;
  padding: 16px;
  border-radius: 22px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.03);
}

.home-strata {
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
}

.formula-slab,
.matrix-slab {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border: 1px solid rgba(18, 24, 35, 0.08);
  border-radius: 34px;
  background:
    linear-gradient(150deg, rgba(255, 250, 243, 0.84), rgba(255, 247, 238, 0.6)),
    rgba(255, 255, 255, 0.46);
  box-shadow: var(--shadow-md);
}

.formula-runner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.formula-runner span {
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(18, 24, 35, 0.06);
  color: var(--ink);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mini-tool-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.mini-tool {
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 1px solid rgba(18, 24, 35, 0.08);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.5);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.mini-tool:hover,
.mini-tool:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(var(--accent-rgb), 0.26);
  background: rgba(255, 255, 255, 0.72);
}

.mini-tool span {
  color: rgba(var(--accent-rgb), 1);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.mini-tool p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.58;
}

.home-reference {
  display: grid;
  gap: 20px;
}

.home-reference-head {
  max-width: 42rem;
}

.home-reference-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: start;
}

.tool-atlas {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.atlas-card {
  position: relative;
  overflow: hidden;
  padding: 22px;
  border: 1px solid rgba(18, 24, 35, 0.08);
  border-radius: 28px;
  background:
    linear-gradient(150deg, rgba(255, 250, 243, 0.82), rgba(255, 247, 238, 0.58)),
    rgba(255, 255, 255, 0.48);
  box-shadow: var(--shadow-md);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.atlas-card:hover,
.atlas-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(var(--accent-rgb), 0.24);
}

.atlas-card h3 {
  margin: 0;
  font-family: "Fraunces", serif;
  font-size: 1.66rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.atlas-card p {
  margin: 10px 0 0;
  color: var(--ink-soft);
  line-height: 1.64;
}

.atlas-card--wide {
  grid-column: 1 / -1;
}

.atlas-card--quote {
  background:
    linear-gradient(145deg, rgba(var(--accent-rgb), 0.16), rgba(255, 255, 255, 0.68)),
    rgba(255, 255, 255, 0.56);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: fade-up 720ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--delay, 0s);
}

@keyframes fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1140px) {
  .hero-split,
  .catalog-grid,
  .section-grid,
  .reference-layout,
  .support-grid,
  .comparison-grid,
  .batch-layout {
    grid-template-columns: 1fr;
  }

  .catalog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tool-nav {
    justify-content: flex-start;
  }

  .home-stage,
  .home-strata,
  .home-reference-grid {
    grid-template-columns: 1fr;
  }

  .console-hero {
    grid-template-columns: 1fr;
  }

  .thermal-tower {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .thermal-rail {
    width: 100%;
    height: 18px;
  }

  .thermal-fluid {
    inset: 0 auto 0 0;
    width: var(--progress);
    height: 100%;
  }

  .thermal-cap {
    left: calc(var(--progress) - 4px);
    bottom: 50%;
    width: 12px;
    height: 34px;
    transform: translate(-50%, 50%);
  }

  .thermal-steps {
    grid-auto-flow: column;
    gap: 10px;
  }

  .console-controls,
  .preset-ribbon,
  .tool-atlas {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-output-grid {
    grid-template-columns: 1fr 1fr;
  }

  .home-output-grid .output-card--lead {
    grid-column: 1 / -1;
    grid-row: auto;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(calc(100% - var(--shell-gutter-md)), var(--content-width));
    padding-top: 18px;
    padding-bottom: 48px;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-bottom: 18px;
  }

  .tool-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    width: 100%;
    padding-bottom: 2px;
  }

  .story-panel,
  .tool-panel,
  .light-card,
  .comparison-card,
  .equal-card,
  .result-list,
  .faq-card,
  .support-card {
    padding: 20px;
  }

  .page-title {
    max-width: 8.6ch;
    font-size: clamp(2.2rem, 9vw, 3.3rem);
  }

  .story-panel .lead,
  .hero-footnote,
  .tool-card p,
  .support-card p,
  .status-note,
  .comparison-note,
  .entry-conversions,
  .body-copy {
    font-size: 0.95rem;
    line-height: 1.66;
  }

  .control-grid,
  .output-grid,
  .quick-grid,
  .mini-metrics,
  .threshold-grid {
    grid-template-columns: 1fr;
  }

  .source-band,
  .comparison-values {
    padding: 18px;
  }

  .unit-choice {
    min-height: 72px;
    padding: 12px 14px;
  }

  .source-value strong {
    font-size: clamp(2.8rem, 16vw, 4.2rem);
  }

  th,
  td {
    padding: 14px 12px;
    font-size: 0.94rem;
  }

  table {
    display: block;
    overflow-x: auto;
  }

  .home-editorial,
  .console-shell,
  .formula-slab,
  .matrix-slab,
  .atlas-card {
    padding: 20px;
  }

  .home-title {
    max-width: 8.8ch;
    font-size: clamp(2.3rem, 9vw, 3.8rem);
  }

  .console-head {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-readout {
    padding: 20px;
  }

  .hero-figure strong {
    font-size: clamp(3.2rem, 16vw, 5rem);
  }

  .console-controls,
  .preset-ribbon,
  .mini-tool-grid,
  .tool-atlas,
  .home-output-grid {
    grid-template-columns: 1fr;
  }

  .input-frame {
    grid-template-columns: 1fr;
  }

  .home-clear,
  .home-input {
    min-height: 64px;
  }

  .home-switch .unit-choice {
    min-height: 76px;
  }

  .thermal-tower {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .thermal-steps {
    width: 100%;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-auto-flow: row;
    justify-items: start;
  }
}

@media (max-width: 480px) {
  .page-shell {
    width: min(calc(100% - var(--shell-gutter-sm)), var(--content-width));
  }

  .brand {
    gap: 10px;
  }

  .brand-mark {
    min-width: 64px;
    padding: 8px 12px;
    font-size: 0.78rem;
  }

  .tool-link {
    padding: 10px 12px;
    font-size: 0.72rem;
  }

  .story-panel,
  .tool-panel,
  .light-card,
  .comparison-card,
  .equal-card,
  .result-list,
  .faq-card,
  .support-card {
    padding: 18px;
  }

  .catalog-grid {
    grid-template-columns: 1fr;
  }

  .unit-switch-quad,
  .unit-switch-duo {
    grid-template-columns: 1fr;
  }

  .meter-labels,
  .comparison-labels {
    font-size: 0.68rem;
  }
}

/* Homepage poster layer */
body[data-page="home"]::before {
  background:
    linear-gradient(rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.12)),
    linear-gradient(135deg, rgba(var(--accent-rgb), 0.1), transparent 32%),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 92px,
      rgba(18, 24, 35, 0.04) 92px,
      rgba(18, 24, 35, 0.04) 93px
    ),
    repeating-linear-gradient(
      180deg,
      transparent 0,
      transparent 92px,
      rgba(18, 24, 35, 0.04) 92px,
      rgba(18, 24, 35, 0.04) 93px
    );
}

body[data-page="home"]::after {
  background:
    radial-gradient(circle at 82% 16%, rgba(var(--accent-rgb), 0.22), transparent 24%),
    radial-gradient(circle at 14% 78%, rgba(255, 255, 255, 0.18), transparent 22%);
}

body[data-page="home"] .page-shell {
  padding-top: 20px;
  padding-bottom: 48px;
}

.poster-home {
  display: grid;
  gap: 16px;
}

.poster-stage {
  display: grid;
  gap: 14px;
  align-content: start;
}

.poster-intro {
  display: grid;
  gap: 10px;
  align-items: end;
}

.poster-copy {
  display: grid;
  gap: 6px;
  padding: 4px 0;
}

.poster-title {
  margin: 0;
  max-width: 9ch;
  color: rgba(18, 24, 35, 0.94);
  font-family: "Fraunces", serif;
  font-size: clamp(2.2rem, 4vw, 3.35rem);
  line-height: 0.92;
  letter-spacing: -0.065em;
}

.poster-subtitle {
  margin: 0;
  color: rgba(var(--accent-rgb), 0.96);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.poster-body {
  margin: 0;
  max-width: 37rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.54;
}

.poster-formulas,
.poster-searches {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-end;
}

.poster-formulas span,
.poster-searches span {
  display: inline-flex;
  width: max-content;
  max-width: 100%;
  padding: 8px 11px;
  border: 1px solid rgba(18, 24, 35, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
  box-shadow: 0 10px 24px rgba(18, 24, 35, 0.05);
  color: rgba(18, 24, 35, 0.94);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.poster-searches span {
  background: rgba(255, 250, 243, 0.5);
}

.poster-console {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 34px;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02) 40%),
    linear-gradient(180deg, rgba(11, 17, 29, 0.98), rgba(17, 25, 39, 0.98));
  box-shadow:
    0 30px 80px rgba(12, 19, 32, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.poster-console::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 96px,
      rgba(255, 255, 255, 0.03) 96px,
      rgba(255, 255, 255, 0.03) 97px
    ),
    repeating-linear-gradient(
      180deg,
      transparent 0,
      transparent 96px,
      rgba(255, 255, 255, 0.03) 96px,
      rgba(255, 255, 255, 0.03) 97px
    );
  pointer-events: none;
}

.poster-console::after {
  content: "";
  position: absolute;
  inset: auto -64px -72px auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.22), transparent 70%);
  pointer-events: none;
}

.poster-console > * {
  position: relative;
  z-index: 1;
}

.poster-console .field-label,
.poster-console .micro-note,
.poster-console .result-caption,
.poster-console .quick-meta {
  color: rgba(255, 255, 255, 0.58);
}

.poster-dashboard {
  display: grid;
  gap: 12px;
}

.poster-console-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.poster-status {
  margin: 0;
  color: #fff6ed;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.84rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.poster-badge {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.74);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.poster-meter-row {
  display: grid;
  gap: 12px;
  align-content: start;
}

.poster-value-block {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  background:
    radial-gradient(circle at top left, rgba(var(--accent-rgb), 0.14), transparent 44%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(0, 0, 0, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.poster-unit {
  display: inline-flex;
  width: max-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: #fff7ee;
  color: #121823;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.poster-value-block strong {
  color: #fffaf3;
  font-family: "Fraunces", serif;
  font-size: clamp(3.35rem, 6vw, 5rem);
  line-height: 0.86;
  letter-spacing: -0.085em;
}

.poster-summary {
  margin: 0;
  max-width: 34rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
  line-height: 1.48;
}

.poster-thermo {
  display: grid;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
}

.poster-thermo-track {
  position: relative;
  width: 100%;
  height: 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.poster-thermo-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--progress);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #fff0db 0%, var(--accent-soft) 44%, var(--accent) 100%);
  box-shadow: 0 0 24px rgba(var(--accent-rgb), 0.34);
}

.poster-thermo-cap {
  position: absolute;
  left: calc(var(--progress) - 6px);
  top: 50%;
  width: 14px;
  height: 30px;
  border-radius: 999px;
  background: #fff9f2;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 18px rgba(255, 255, 255, 0.24);
}

.poster-thermo-scale {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  color: rgba(255, 255, 255, 0.48);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.poster-controls {
  display: grid;
  gap: 12px;
  align-items: start;
}

.poster-input-area,
.poster-switch-area {
  display: grid;
  gap: 10px;
}

.poster-input-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.poster-input {
  min-height: 62px;
  padding: 0 18px;
  border-color: rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
  color: #fffaf3;
  font-size: 1.18rem;
  font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.poster-input::placeholder {
  color: rgba(255, 255, 255, 0.26);
}

.poster-input:focus {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 0 0 4px rgba(var(--accent-rgb), 0.14);
}

.poster-reset {
  min-width: 88px;
  min-height: 62px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background:
    linear-gradient(145deg, rgba(var(--accent-rgb), 0.34), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.06);
  color: #fffaf3;
  cursor: pointer;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.poster-reset:hover,
.poster-reset:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.2);
}

.poster-switch {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 10px;
  border-color: rgba(255, 255, 255, 0.1);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.03);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 16px 30px rgba(0, 0, 0, 0.16);
}

.poster-switch .unit-choice {
  min-height: 62px;
  gap: 6px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  color: #fffaf3;
}

.poster-switch .unit-choice::before {
  content: attr(data-unit);
  position: absolute;
  top: 10px;
  right: 12px;
  color: rgba(255, 255, 255, 0.28);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.poster-switch .unit-choice:hover,
.poster-switch .unit-choice:focus-visible {
  background: rgba(255, 255, 255, 0.06);
}

.poster-switch .unit-choice[data-active="true"] {
  border-color: rgba(var(--accent-rgb), 0.56);
  background:
    linear-gradient(145deg, rgba(var(--accent-rgb), 0.34), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.08);
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  color: #fff;
}

.poster-switch .unit-choice[data-active="true"]::before {
  color: rgba(255, 255, 255, 0.72);
}

.poster-switch .unit-choice-name {
  font-size: 0.84rem;
  font-weight: 600;
}

.poster-switch .unit-choice-symbol {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
}

.poster-switch .unit-choice[data-active="true"] .unit-choice-symbol {
  color: #fff3e7;
}

.poster-message {
  min-height: 18px;
  color: #ffd8c6;
  font-size: 0.88rem;
}

.poster-output-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  grid-auto-rows: minmax(108px, auto);
}

.poster-output-grid .output-card {
  position: relative;
  overflow: hidden;
  display: grid;
  align-content: end;
  gap: 8px;
  min-height: 108px;
  padding: 14px 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(0, 0, 0, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.poster-output-grid .output-card::before {
  content: attr(data-unit);
  position: absolute;
  top: 10px;
  right: 12px;
  color: rgba(255, 255, 255, 0.06);
  font-family: "Fraunces", serif;
  font-size: 3.1rem;
  line-height: 0.8;
  letter-spacing: -0.08em;
  text-transform: uppercase;
  pointer-events: none;
}

.poster-output-grid .output-card--lead {
  grid-column: 1 / -1;
  min-height: 136px;
  padding: 16px 16px 18px;
  border-color: rgba(var(--accent-rgb), 0.24);
  background:
    radial-gradient(circle at top left, rgba(var(--accent-rgb), 0.18), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(0, 0, 0, 0.18);
}

.poster-output-grid .output-unit {
  margin: 0;
  color: rgba(255, 255, 255, 0.56);
}

.poster-output-grid .output-value {
  margin: 0;
  color: #fffaf3;
  font-family: "Fraunces", serif;
  font-size: clamp(1.72rem, 2.6vw, 2.45rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
}

.poster-output-grid .output-card--lead .output-value {
  font-size: clamp(2.3rem, 4vw, 3.1rem);
}

.poster-output-grid .output-note {
  margin: 0;
  max-width: 25ch;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.8rem;
  line-height: 1.42;
}

.poster-bottomline {
  display: grid;
  gap: 12px;
}

.poster-context {
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  border-left: 3px solid rgba(var(--accent-rgb), 0.9);
  border-radius: 0 18px 18px 0;
  background:
    linear-gradient(90deg, rgba(var(--accent-rgb), 0.16), rgba(255, 255, 255, 0.02)),
    rgba(255, 255, 255, 0.04);
}

.poster-context strong {
  color: #fffaf3;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.poster-context p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.86rem;
  line-height: 1.44;
}

.poster-presets {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.poster-preset {
  min-height: 58px;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.03);
  color: #fffaf3;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.poster-preset:hover,
.poster-preset:focus-visible {
  transform: translateY(-2px);
}

.poster-preset strong {
  font-size: 0.88rem;
}

.poster-footer {
  display: grid;
  gap: 14px;
  align-items: start;
}

.poster-footer-note {
  padding: 8px 2px 0;
}

.poster-footer-note .section-title {
  max-width: 12ch;
}

.poster-toolline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.poster-link {
  display: grid;
  gap: 8px;
  min-height: 96px;
  padding: 16px 16px 18px;
  border: 1px solid rgba(18, 24, 35, 0.08);
  border-radius: 20px;
  background:
    linear-gradient(150deg, rgba(255, 250, 243, 0.84), rgba(255, 247, 238, 0.6)),
    rgba(255, 255, 255, 0.46);
  box-shadow: var(--shadow-md);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.poster-link:hover,
.poster-link:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(var(--accent-rgb), 0.28);
  background: linear-gradient(150deg, rgba(255, 250, 243, 0.92), rgba(255, 247, 238, 0.72));
}

.poster-link span {
  color: rgba(var(--accent-rgb), 1);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.poster-link p {
  margin: 0;
  color: rgba(18, 24, 35, 0.94);
  font-family: "Fraunces", serif;
  font-size: 1.08rem;
  line-height: 1.04;
  letter-spacing: -0.04em;
}

@media (min-width: 1040px) {
  .poster-intro {
    grid-template-columns: minmax(0, 1.25fr) auto auto;
  }

  .poster-footer {
    grid-template-columns: minmax(220px, 0.52fr) minmax(0, 1.48fr);
  }
}

@media (min-width: 980px) {
  .poster-stage {
    min-height: calc(100vh - 122px);
  }

  .poster-dashboard {
    grid-template-columns: minmax(300px, 0.8fr) minmax(0, 1.2fr);
  }

  .poster-meter-row {
    grid-template-rows: auto auto;
  }

  .poster-controls {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .poster-bottomline {
    grid-template-columns: minmax(250px, 0.5fr) minmax(0, 1.5fr);
    align-items: stretch;
  }
}

@media (max-width: 1180px) {
  .poster-toolline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .poster-intro {
    order: 2;
  }

  .poster-console {
    order: 1;
  }

  .poster-switch {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .poster-presets {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .poster-dashboard,
  .poster-controls,
  .poster-bottomline,
  .poster-footer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body[data-page="home"] .page-shell {
    padding-top: 16px;
    padding-bottom: 36px;
  }

  .poster-home {
    gap: 14px;
  }

  .poster-title {
    font-size: clamp(2rem, 9vw, 2.8rem);
  }

  .poster-body {
    font-size: 0.86rem;
  }

  .poster-formulas span,
  .poster-searches span {
    width: 100%;
  }

  .poster-console {
    padding: 16px;
    border-radius: 26px;
  }

  .poster-console-head {
    flex-direction: column;
    align-items: stretch;
  }

  .poster-value-block {
    padding: 16px;
  }

  .poster-value-block strong {
    font-size: clamp(2.8rem, 15vw, 4.2rem);
  }

  .poster-input-shell {
    grid-template-columns: 1fr;
  }

  .poster-input,
  .poster-reset {
    min-height: 58px;
  }

  .poster-switch .unit-choice {
    min-height: 58px;
  }

  .poster-output-grid,
  .poster-toolline {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .poster-title {
    font-size: clamp(1.82rem, 11vw, 2.45rem);
  }

  .poster-subtitle {
    font-size: 0.68rem;
  }

  .poster-switch {
    grid-template-columns: 1fr;
  }

  .poster-output-grid .output-card,
  .poster-output-grid .output-card--lead {
    min-height: auto;
    padding: 14px;
  }

  .poster-presets {
    grid-template-columns: 1fr;
  }

  .poster-badge {
    width: max-content;
  }

  .poster-link p {
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .equal-divider {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .tool-link,
  .ghost-button,
  .quick-button,
  .poster-link,
  .poster-reset,
  .text-input,
  .select-input,
  .text-area {
    transition: none;
  }
}