@font-face {
  font-family: "Space Grotesk";
  src: url("/fonts/space-grotesk-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
}

:root {
  color-scheme: dark light;
  --bg: #0b0d1a;
  --bg-deep: #080914;
  --surface: #141833;
  --surface-2: #1b2042;
  --text: #f4f1ff;
  --muted: #aaaac3;
  --faint: #747897;
  --line: rgba(205, 207, 239, 0.16);
  --line-strong: rgba(205, 207, 239, 0.28);
  --gold: #ffd479;
  --gold-soft: #ffedb8;
  --aurora: #7ea8ff;
  --violet: #c79bff;
  --serif: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  --sans: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  --max: 1180px;
  --radius: 1.35rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 10%, rgba(126, 168, 255, 0.09), transparent 28rem),
    radial-gradient(circle at 18% 52%, rgba(199, 155, 255, 0.06), transparent 32rem),
    var(--bg);
  font: 400 1rem/1.65 var(--sans);
  text-rendering: optimizeLegibility;
}

button,
input,
select {
  font: inherit;
}

button,
a,
summary,
input,
select {
  -webkit-tap-highlight-color: transparent;
}

button,
summary,
select {
  cursor: pointer;
}

a {
  color: inherit;
  text-underline-offset: 0.22em;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: #10111f;
  background: var(--gold);
  border-radius: 0.5rem;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.site-header {
  position: relative;
  z-index: 4;
  display: flex;
  width: min(var(--max), calc(100% - 3rem));
  min-height: 5.5rem;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.02rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand b {
  color: var(--gold);
}

.brand svg {
  width: 2.1rem;
  height: 2.1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}

.trust {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.83rem;
}

.trust span {
  width: 0.45rem;
  height: 0.45rem;
  background: #7fd6ac;
  border-radius: 999px;
  box-shadow: 0 0 1rem rgba(127, 214, 172, 0.75);
}

.hero {
  position: relative;
  min-height: calc(100svh - 5.5rem);
  isolation: isolate;
  overflow: clip;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 35%, rgba(44, 50, 108, 0.76), transparent 30rem),
    linear-gradient(180deg, rgba(20, 24, 51, 0.42), rgba(8, 9, 20, 0.78));
}

.hero__canvas,
.hero__glow {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero__glow {
  z-index: -1;
  width: min(62vw, 50rem);
  height: min(62vw, 50rem);
  inset: 10% auto auto 50%;
  border: 1px solid rgba(199, 155, 255, 0.16);
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow:
    0 0 0 6rem rgba(126, 168, 255, 0.018),
    0 0 9rem rgba(126, 168, 255, 0.09),
    inset 0 0 7rem rgba(199, 155, 255, 0.06);
}

.hero__content {
  width: min(55rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3.4rem, 8vh, 6rem) 0 5rem;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  overflow-wrap: break-word;
}

h1,
h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.03;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 16ch;
  margin-inline: auto;
  font-size: clamp(2.7rem, 7.5vw, 5.6rem);
}

h2 {
  font-size: clamp(2.25rem, 5vw, 4.25rem);
}

h3,
h4 {
  line-height: 1.2;
}

.hero__lede {
  max-width: 42rem;
  margin: 1.4rem auto 2.15rem;
  color: #d1d0df;
  font-size: clamp(1rem, 2vw, 1.14rem);
}

.birth-form {
  width: min(42rem, 100%);
  margin: 0 auto;
}

.date-fields {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(5.5rem, 0.75fr) minmax(7rem, 1fr);
  gap: 0.7rem;
}

.date-fields label {
  min-width: 0;
  text-align: left;
}

.date-fields label > span {
  display: block;
  margin: 0 0 0.38rem 0.25rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.date-fields input,
.date-fields select {
  width: 100%;
  height: 3.65rem;
  padding: 0 0.95rem;
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 0.85rem;
  background: rgba(12, 14, 31, 0.78);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.045), 0 1rem 3rem rgba(0, 0, 0, 0.15);
}

.date-fields input:hover,
.date-fields select:hover {
  border-color: rgba(255, 212, 121, 0.5);
}

.instant-note {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.instant-note span {
  color: var(--gold);
}

.examples {
  display: flex;
  margin: 1.25rem auto 0;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--faint);
  font-size: 0.76rem;
}

.examples button {
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0.45rem 0.72rem;
  color: var(--gold-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(18, 21, 47, 0.72);
}

.examples button:hover {
  border-color: var(--gold);
}

.reveal {
  padding-top: 2.6rem;
}

.reduction {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 46rem;
  margin: 0 auto;
  gap: 0.75rem;
}

.reduction-tile {
  display: grid;
  min-height: 5.1rem;
  padding: 0.8rem;
  align-content: center;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: rgba(12, 14, 31, 0.58);
  opacity: 0;
  transform: translateY(0.65rem) scale(0.98);
  transition: opacity 400ms var(--ease), transform 500ms var(--ease);
}

.reduction-tile__label {
  color: var(--faint);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.reduction-tile__equation {
  color: #deddea;
  font-variant-numeric: tabular-nums;
  font-size: clamp(0.75rem, 2vw, 0.92rem);
}

.reduction-sum {
  grid-column: 1 / -1;
  margin: 0.15rem 0 0;
  color: var(--gold-soft);
  font-size: 0.92rem;
  opacity: 0;
  transform: translateY(0.65rem);
  transition: opacity 400ms var(--ease), transform 500ms var(--ease);
}

.reduction-tile.is-visible,
.reduction-sum.is-visible {
  opacity: 1;
  transform: none;
}

.result-orbit {
  position: relative;
  display: grid;
  width: clamp(10.5rem, 29vw, 16rem);
  aspect-ratio: 1;
  margin: 1.45rem auto 0.3rem;
  place-items: center;
}

.result-orbit__ring {
  position: absolute;
  inset: 5%;
  border: 1px solid rgba(126, 168, 255, 0.42);
  border-radius: 50%;
}

.result-orbit__ring::before,
.result-orbit__ring::after {
  position: absolute;
  inset: 18%;
  content: "";
  border: 1px solid rgba(199, 155, 255, 0.28);
  transform: rotate(45deg);
}

.result-orbit__ring::after {
  transform: rotate(67.5deg);
}

.result-orbit__ring--inner {
  inset: 19%;
  border-color: rgba(255, 212, 121, 0.5);
  animation: orbit 28s linear infinite reverse;
}

.result-orbit__ring--outer {
  animation: orbit 38s linear infinite;
}

@keyframes orbit {
  to { transform: rotate(360deg); }
}

.result-number {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--gold-soft);
  font: 400 clamp(7rem, 24vw, 12rem) / 0.75 var(--serif);
  letter-spacing: -0.09em;
  opacity: 0.2;
  transform: scale(0.72);
  filter: blur(6px);
  transition: opacity 800ms var(--ease), transform 1100ms var(--ease), filter 800ms ease, text-shadow 1s ease;
}

.result-number.is-ignited {
  opacity: 1;
  transform: scale(1);
  filter: none;
  text-shadow:
    0 0 1.1rem rgba(255, 244, 189, 0.76),
    0 0 3.4rem rgba(255, 212, 121, 0.48),
    0 0 7rem rgba(126, 168, 255, 0.3);
}

.master-tag {
  width: max-content;
  margin: 0.4rem auto 0.7rem;
  padding: 0.25rem 0.75rem;
  color: var(--gold-soft);
  border: 1px solid rgba(255, 212, 121, 0.38);
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.result-title {
  font-size: clamp(1.9rem, 5vw, 3.1rem);
}

.keyword-row {
  display: flex;
  margin-top: 0.85rem;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
}

.keyword-row span {
  padding: 0.28rem 0.72rem;
  color: #d6d4e3;
  border-bottom: 1px solid rgba(255, 212, 121, 0.38);
  font-size: 0.74rem;
}

.meaning,
.method,
.compatibility,
.explorer,
.faq {
  width: min(var(--max), calc(100% - 3rem));
  margin: 0 auto;
  padding: clamp(5rem, 10vw, 8.5rem) 0;
}

.section-heading {
  max-width: 49rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.section-heading > p:last-child {
  max-width: 44rem;
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-heading--split {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(0, 1.3fr) minmax(18rem, 0.7fr);
  align-items: end;
  gap: clamp(2rem, 7vw, 6rem);
}

.section-heading--split > p {
  margin: 0 0 0.4rem;
  color: var(--muted);
}

.meaning-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  border-top: 1px solid var(--line);
}

.meaning-block {
  position: relative;
  grid-column: span 6;
  min-height: 18rem;
  padding: clamp(1.5rem, 4vw, 2.7rem);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.meaning-block:nth-child(even) {
  border-right: 0;
}

.meaning-block--wide {
  grid-column: 1 / -1;
  min-height: auto;
  border-right: 0;
}

.meaning-block__index {
  margin: 0 0 2.5rem;
  color: var(--faint);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
}

.meaning-block h3 {
  margin: 0 0 1rem;
  font: 400 clamp(1.55rem, 3vw, 2.1rem) / 1.15 var(--serif);
}

.meaning-block p,
.meaning-block li {
  color: #cac8d8;
}

.meaning-block ul {
  margin: 0;
  padding-left: 1.2rem;
}

.meaning-block li + li {
  margin-top: 0.55rem;
}

.year-strip {
  display: grid;
  padding: 1.5rem 2rem;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 2rem;
  background: linear-gradient(110deg, rgba(126, 168, 255, 0.13), rgba(199, 155, 255, 0.07));
  border-bottom: 1px solid rgba(126, 168, 255, 0.38);
}

.year-strip__year {
  color: var(--gold);
  font: 400 2.2rem/1 var(--serif);
}

.year-strip p {
  margin: 0;
  color: #d8d6e4;
}

.share-actions {
  display: flex;
  margin-top: 2rem;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  min-height: 3.15rem;
  padding: 0.75rem 1.15rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 0.75rem;
  font-weight: 650;
  text-decoration: none;
}

.button--primary {
  color: #151423;
  background: var(--gold);
  box-shadow: 0 0.8rem 2.2rem rgba(255, 212, 121, 0.13);
}

.button--primary:hover {
  background: #ffe29a;
}

.button--ghost {
  color: var(--text);
  border-color: var(--line-strong);
  background: transparent;
}

.button--ghost:hover {
  border-color: var(--gold);
}

.button:disabled {
  cursor: wait;
  opacity: 0.6;
}

.action-note {
  color: var(--muted);
  font-size: 0.82rem;
}

.method {
  border-top: 1px solid var(--line);
}

.method__steps {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
  border-top: 1px solid var(--line);
}

.method__steps li {
  padding: 2rem 1.35rem 1rem;
  border-right: 1px solid var(--line);
}

.method__steps li:last-child {
  border-right: 0;
}

.method__steps li > span {
  display: block;
  margin-bottom: 2.4rem;
  color: var(--gold);
  font: 400 2.3rem/1 var(--serif);
}

.method__steps h3 {
  margin: 0 0 0.65rem;
  font: 400 1.35rem/1.2 var(--serif);
}

.method__steps p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.calculation-live {
  display: grid;
  margin-top: 3rem;
  padding: 1.5rem 1.75rem;
  grid-template-columns: 12rem 1fr;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(20, 24, 51, 0.5);
}

.calculation-live ol {
  margin: 0;
  padding-left: 1.3rem;
  color: #d4d2df;
  font-variant-numeric: tabular-nums;
}

.calculation-live li + li {
  margin-top: 0.4rem;
}

.compatibility {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(25rem, 1.2fr);
  gap: clamp(3rem, 8vw, 7rem);
  border-top: 1px solid var(--line);
}

.compatibility__intro h2 {
  max-width: 10ch;
}

.compatibility__intro > p:last-child {
  max-width: 31rem;
  color: var(--muted);
}

.compatibility__tool {
  padding: clamp(1.25rem, 4vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 75% 12%, rgba(126, 168, 255, 0.1), transparent 13rem),
    rgba(20, 24, 51, 0.46);
}

.compatibility__result {
  min-height: 4rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.compatibility__result:empty {
  min-height: 0;
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.compatibility__result h3 {
  margin: 0 0 0.4rem;
  font: 400 2rem/1.15 var(--serif);
}

.compatibility__result[data-tone="harmonious"] h3 {
  color: var(--gold-soft);
}

.compatibility__result[data-tone="growth"] h3 {
  color: var(--violet);
}

.compatibility__numbers {
  color: var(--aurora);
  font-weight: 650;
}

.fine-print {
  color: var(--faint);
  font-size: 0.78rem;
}

.explorer {
  border-top: 1px solid var(--line);
}

.number-chips {
  display: grid;
  grid-template-columns: repeat(12, minmax(3rem, 1fr));
  gap: 0.5rem;
}

.number-chips button {
  aspect-ratio: 1;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  font: 400 clamp(1.1rem, 2vw, 1.5rem)/1 var(--serif);
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.number-chips button:hover {
  color: var(--text);
  border-color: var(--gold);
  transform: translateY(-2px);
}

.number-chips button[aria-pressed="true"] {
  color: #171525;
  border-color: var(--gold);
  background: var(--gold);
  box-shadow: 0 0 2rem rgba(255, 212, 121, 0.18);
}

.explorer-panel {
  min-height: 25rem;
  margin-top: 1.25rem;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 90% 5%, rgba(199, 155, 255, 0.1), transparent 20rem),
    rgba(20, 24, 51, 0.43);
}

.explorer-panel h3 {
  margin: 0;
  font: 400 clamp(2rem, 5vw, 3.7rem)/1 var(--serif);
}

.explorer-panel__essence {
  max-width: 52rem;
  color: #d6d4e2;
  font-size: 1.05rem;
}

.explorer-panel__columns {
  display: grid;
  max-width: 50rem;
  margin: 2rem 0;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
}

.explorer-panel__columns h4 {
  color: var(--gold);
}

.explorer-panel__columns ul {
  padding-left: 1.1rem;
  color: var(--muted);
}

.explorer-static {
  display: grid;
  gap: 0.65rem;
  margin-top: 2rem;
}

.is-enhanced .explorer-static {
  display: none;
}

.explorer-static details,
.faq details {
  border-top: 1px solid var(--line);
}

.explorer-static summary,
.faq summary {
  display: grid;
  padding: 1.25rem 0;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  list-style: none;
  font-weight: 600;
}

.explorer-static summary::-webkit-details-marker,
.faq summary::-webkit-details-marker {
  display: none;
}

.explorer-static summary::after,
.faq summary::after {
  content: "+";
  color: var(--gold);
  font-size: 1.4rem;
  font-weight: 400;
}

.explorer-static details[open] summary::after,
.faq details[open] summary::after {
  content: "−";
}

.explorer-static summary span {
  color: var(--faint);
  font-size: 0.8rem;
  font-weight: 400;
}

.explorer-static details > div {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.explorer-static details > p,
.explorer-static details > div {
  color: var(--muted);
}

.faq {
  max-width: 55rem;
  border-top: 1px solid var(--line);
}

.faq .section-heading {
  margin-bottom: 2rem;
}

.faq summary {
  grid-template-columns: 1fr auto;
  font: 400 clamp(1.15rem, 3vw, 1.45rem)/1.25 var(--serif);
}

.faq details > p {
  margin: 0;
  padding: 0 3rem 1.5rem 0;
  color: var(--muted);
}

.site-footer {
  display: grid;
  width: min(var(--max), calc(100% - 3rem));
  margin: 0 auto;
  padding: 2.5rem 0 3rem;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 2rem;
  color: var(--faint);
  border-top: 1px solid var(--line);
  font-size: 0.77rem;
}

.site-footer p {
  margin: 0;
}

.site-footer > p:first-child {
  max-width: 42rem;
}

.site-footer nav {
  display: flex;
  gap: 1rem;
}

.legal-dialog {
  width: min(50rem, calc(100% - 1.5rem));
  max-height: min(50rem, calc(100dvh - 1.5rem));
  padding: 0;
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 1.2rem;
  background: var(--surface);
  box-shadow: 0 2rem 7rem rgba(0, 0, 0, 0.5);
}

.legal-dialog::backdrop {
  background: rgba(4, 5, 12, 0.82);
  backdrop-filter: blur(6px);
}

.legal-dialog__frame {
  position: relative;
  min-height: 12rem;
}

.legal-close {
  position: sticky;
  z-index: 2;
  top: 0.85rem;
  float: right;
  width: 2.65rem;
  height: 2.65rem;
  margin: 0.85rem 0.85rem 0 0;
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--surface-2);
  font-size: 1.35rem;
}

.legal-dialog__body {
  padding: clamp(1.4rem, 6vw, 4rem);
}

.legal-copy {
  max-width: 42rem;
  margin: 0 auto;
}

.legal-copy h1 {
  max-width: 15ch;
  margin: 0;
  font-size: clamp(2.35rem, 7vw, 4rem);
}

.legal-copy h2 {
  margin-top: 2.4rem;
  font-size: 1.75rem;
}

.legal-copy p,
.legal-copy footer {
  color: var(--muted);
}

.legal-copy footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.legal-updated {
  font-size: 0.8rem;
}

.legal-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
}

.legal-page-shell {
  width: min(50rem, calc(100% - 2rem));
  padding: 3rem 0 5rem;
}

.legal-back {
  display: inline-block;
  margin-bottom: 3rem;
  color: var(--gold);
}

.error-page {
  text-align: center;
}

.error-page main {
  width: min(38rem, calc(100% - 2rem));
}

.error-code {
  margin: 0;
  color: var(--gold);
  font: 400 clamp(7rem, 28vw, 13rem)/0.9 var(--serif);
  text-shadow: 0 0 4rem rgba(255, 212, 121, 0.23);
}

.error-page h1 {
  font-size: clamp(2rem, 7vw, 3.8rem);
}

.error-page p:not(.error-code) {
  color: var(--muted);
}

@media (max-width: 860px) {
  .section-heading--split,
  .compatibility {
    grid-template-columns: 1fr;
  }

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

  .method__steps li:nth-child(2) {
    border-right: 0;
  }

  .method__steps li {
    border-bottom: 1px solid var(--line);
  }

  .number-chips {
    grid-template-columns: repeat(6, 1fr);
  }

  .site-footer {
    grid-template-columns: 1fr auto;
  }

  .site-footer > p:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  .site-header,
  .meaning,
  .method,
  .compatibility,
  .explorer,
  .faq,
  .site-footer {
    width: min(100% - 2rem, var(--max));
  }

  .site-header {
    min-height: 4.7rem;
  }

  .trust {
    max-width: 9rem;
    justify-content: flex-end;
    text-align: right;
    line-height: 1.3;
  }

  .hero {
    min-height: calc(100svh - 4.7rem);
  }

  .hero__content {
    padding-top: 3.2rem;
  }

  .date-fields {
    grid-template-columns: minmax(0, 1.3fr) minmax(4.7rem, 0.65fr) minmax(6.2rem, 0.9fr);
    gap: 0.4rem;
  }

  .date-fields input,
  .date-fields select {
    height: 3.35rem;
    padding-inline: 0.65rem;
    font-size: 0.9rem;
  }

  .examples {
    flex-wrap: wrap;
  }

  .reduction {
    gap: 0.4rem;
  }

  .reduction-tile {
    min-height: 4.6rem;
    padding: 0.55rem 0.35rem;
  }

  .meaning-block,
  .meaning-block--wide {
    grid-column: 1 / -1;
    min-height: auto;
    border-right: 0;
  }

  .year-strip {
    padding: 1.25rem;
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .share-actions .button {
    width: 100%;
  }

  .method__steps,
  .explorer-panel__columns,
  .explorer-static details > div {
    grid-template-columns: 1fr;
  }

  .method__steps li {
    border-right: 0;
  }

  .method__steps li > span {
    margin-bottom: 1rem;
  }

  .calculation-live {
    grid-template-columns: 1fr;
  }

  .compatibility__tool {
    padding-inline: 0.8rem;
  }

  .number-chips {
    grid-template-columns: repeat(4, 1fr);
  }

  .explorer-panel {
    min-height: 0;
  }

  .explorer-static summary {
    grid-template-columns: 1fr auto;
  }

  .explorer-static summary span {
    display: none;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .legal-dialog__body {
    padding-top: 4rem;
  }
}

@media (max-width: 365px) {
  .brand span {
    max-width: 6.8rem;
    line-height: 1.1;
  }

  .trust {
    font-size: 0.7rem;
  }

  .date-fields {
    grid-template-columns: 1.15fr 0.65fr 0.85fr;
  }

  .date-fields label > span {
    font-size: 0.62rem;
  }
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f2ec;
    --bg-deep: #eee9df;
    --surface: #fffdf8;
    --surface-2: #f0eadf;
    --text: #1a1830;
    --muted: #5f5d70;
    --faint: #807c8c;
    --line: rgba(40, 34, 70, 0.13);
    --line-strong: rgba(40, 34, 70, 0.24);
    --gold: #9a6100;
    --gold-soft: #744c08;
    --aurora: #3159a4;
    --violet: #7446a1;
  }

  body {
    background:
      radial-gradient(circle at 82% 10%, rgba(49, 89, 164, 0.08), transparent 28rem),
      radial-gradient(circle at 18% 52%, rgba(116, 70, 161, 0.05), transparent 32rem),
      var(--bg);
  }

  .hero {
    background:
      radial-gradient(circle at 50% 35%, rgba(126, 168, 255, 0.18), transparent 30rem),
      linear-gradient(180deg, rgba(255, 253, 248, 0.64), rgba(238, 233, 223, 0.82));
  }

  .hero__lede,
  .meaning-block p,
  .meaning-block li,
  .year-strip p,
  .explorer-panel__essence {
    color: #464354;
  }

  .date-fields input,
  .date-fields select {
    color: var(--text);
    background: rgba(255, 253, 248, 0.88);
  }

  .reduction-tile,
  .examples button,
  .compatibility__tool,
  .explorer-panel,
  .calculation-live {
    background-color: rgba(255, 253, 248, 0.72);
  }

  .result-number {
    color: #80530c;
  }

  .legal-dialog::backdrop {
    background: rgba(30, 25, 44, 0.55);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .hero__canvas {
    display: none;
  }

  .reduction-tile,
  .reduction-sum {
    opacity: 1;
    transform: none;
  }
}