:root {
  --paper: #f2f0ea;
  --paper-2: #faf9f5;
  --canvas: #e9e7e1;
  --surface-dark: #1d1e20;
  --ink: #17181a;
  --muted: #66675f;
  --line: #c8c5bf;
  --blue: #315ee7;
  --red: #ef5b3f;
  --yellow: #f2cf32;
  --white: #faf9f5;
  --sans: "Helvetica Neue", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shell: min(1280px, calc(100vw - 64px));
  --section: clamp(88px, 9vw, 144px);
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 20px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 72px;
  --radius-card: 20px;
  --radius-section: 28px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

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

img {
  display: block;
  max-width: 100%;
}

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

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

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-140%);
  transition: transform 160ms ease;
}

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

.section-shell {
  width: var(--shell);
  margin-inline: auto;
}

.eyebrow {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  transition: transform 180ms var(--ease), background 180ms ease, color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--ink {
  background: var(--ink);
  color: var(--white);
}

.button--line {
  border-color: var(--line);
}

.button--paper {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.radar-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  min-height: 74px;
  grid-template-columns: 320px 1fr 180px;
  align-items: center;
  padding: 10px 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(23, 24, 26, 0.96);
  color: var(--white);
  backdrop-filter: blur(18px);
}

.brand-lockup {
  display: inline-flex;
  width: fit-content;
  min-height: 44px;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.07em;
}

.brand-lockup img {
  width: auto;
  height: 34px;
  filter: grayscale(1) invert(1) brightness(1.6);
}

.brand-lockup > span {
  color: #85867f;
}

.radar-header nav {
  display: flex;
  justify-content: center;
  gap: clamp(18px, 2.5vw, 42px);
  font-size: 13px;
}

.radar-header nav a,
.header-back {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

.radar-header nav a {
  position: relative;
}

.radar-header nav a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms var(--ease);
}

.radar-header nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-back {
  justify-self: end;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.radar-hero {
  display: grid;
  min-height: calc(100svh - 74px);
  grid-template-columns: minmax(0, 1.02fr) minmax(440px, 0.98fr);
  align-items: center;
  gap: clamp(56px, 8vw, 132px);
  padding-block: 72px;
}

.radar-hero h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(58px, 6.8vw, 110px);
  font-weight: 650;
  line-height: 0.91;
  letter-spacing: -0.075em;
}

.radar-hero h1 em {
  color: var(--blue);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

.radar-hero__intro {
  max-width: 680px;
  margin: 36px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.35vw, 21px);
}

.radar-hero__actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 34px;
}

.text-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  border-bottom: 1px solid currentColor;
  font-size: 13px;
  font-weight: 700;
}

.radar-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 54px 0 0;
  border-top: 1px solid var(--line);
}

.radar-stats div {
  padding: 17px 8px 0 0;
}

.radar-stats div + div {
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.radar-stats dt {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
}

.radar-stats dd {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.radar-hero__instrument {
  overflow: hidden;
  border: 1px solid #343638;
  border-radius: 18px;
  background: var(--ink);
  color: var(--white);
  box-shadow: 16px 16px 0 var(--blue);
}

.instrument-head,
.instrument-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
}

.instrument-head {
  min-height: 48px;
  border-bottom: 1px solid #343638;
}

.instrument-foot {
  min-height: 52px;
  gap: 16px;
  border-top: 1px solid #343638;
  color: #9b9d98;
}

.instrument-stage {
  position: relative;
  display: grid;
  aspect-ratio: 1 / 0.88;
  place-items: center;
  overflow: hidden;
  background-image: linear-gradient(#292b2e 1px, transparent 1px), linear-gradient(90deg, #292b2e 1px, transparent 1px);
  background-size: 42px 42px;
}

.instrument-stage::before,
.instrument-stage::after {
  position: absolute;
  background: #404246;
  content: "";
}

.instrument-stage::before {
  width: 1px;
  height: 100%;
}

.instrument-stage::after {
  width: 100%;
  height: 1px;
}

.orbit {
  position: absolute;
  display: grid;
  border: 1px solid #60636a;
  border-radius: 50%;
  place-items: center;
}

.orbit span {
  position: absolute;
  padding: 3px 7px;
  background: var(--ink);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.06em;
}

.orbit span:first-child {
  top: 12%;
  right: -9%;
}

.orbit span:last-child {
  bottom: 10%;
  left: -8%;
}

.orbit--outer {
  width: 78%;
  aspect-ratio: 1;
}

.orbit--middle {
  width: 54%;
  aspect-ratio: 1;
  border-style: dashed;
  transform: rotate(-18deg);
}

.orbit--middle span {
  transform: rotate(18deg);
}

.orbit--inner {
  z-index: 2;
  width: 28%;
  aspect-ratio: 1;
  border: 0;
  background: var(--paper-2);
  color: var(--ink);
  text-align: center;
}

.orbit--inner strong {
  font-size: clamp(18px, 2vw, 30px);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.scanner-line {
  position: absolute;
  z-index: 1;
  width: 43%;
  height: 1px;
  transform: translateX(50%) rotate(0deg);
  transform-origin: left center;
  background: var(--red);
  animation: scan 8s linear infinite;
}

.scanner-line::after {
  position: absolute;
  top: -3px;
  right: -3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
  content: "";
}

.signal-dot {
  position: absolute;
  z-index: 3;
  width: 9px;
  height: 9px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 0 5px rgba(242, 207, 50, 0.16);
}

.signal-dot--one {
  top: 19%;
  left: 26%;
}

.signal-dot--two {
  right: 18%;
  bottom: 28%;
  background: var(--blue);
  box-shadow: 0 0 0 5px rgba(49, 94, 231, 0.18);
}

.signal-dot--three {
  right: 29%;
  top: 17%;
  background: var(--red);
  box-shadow: 0 0 0 5px rgba(239, 91, 63, 0.17);
}

@keyframes scan {
  to { transform: translateX(50%) rotate(360deg); }
}

.field-note {
  border-block: 1px solid var(--line);
  background: var(--paper-2);
}

.field-note__inner {
  display: grid;
  grid-template-columns: minmax(180px, 0.42fr) minmax(0, 1.58fr);
  gap: 48px;
  padding-block: 32px;
}

.field-note span {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
}

.field-note p {
  max-width: 940px;
  margin: 0;
  font-size: clamp(18px, 1.7vw, 25px);
  line-height: 1.35;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.55fr);
  gap: var(--space-2xl);
  align-items: end;
  margin-bottom: clamp(48px, 5vw, 72px);
}

.section-heading h2 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(42px, 4.8vw, 68px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.055em;
}

.section-heading > p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.section-heading--light h2,
.section-heading--light > p,
.section-heading--light .eyebrow {
  color: var(--white);
}

.section-heading--light > p {
  color: #a9aaa5;
}

.signal-section,
.aesthetic-section,
.practice-section,
.source-section {
  margin-block: clamp(36px, 5vw, 72px);
  padding: clamp(40px, 5vw, 72px);
  border: 1px solid var(--line);
  border-radius: var(--radius-section);
  background: var(--paper-2);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.signal-card {
  display: flex;
  min-height: 340px;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: #fffefb;
  transition: background 180ms ease, color 180ms ease;
}

.signal-card:hover {
  background: var(--ink);
  color: var(--white);
}

.signal-card__index {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
}

.signal-card__index::after {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--red);
  content: "";
}

.signal-card h3 {
  max-width: 350px;
  margin: 48px 0 24px;
  font-size: clamp(25px, 2vw, 32px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.signal-card__summary {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.signal-card__summary span,
.signal-card__foot b {
  display: block;
  margin-bottom: 7px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
}

.signal-card:hover .signal-card__summary,
.signal-card:hover .signal-card__summary span,
.signal-card:hover .signal-card__foot b {
  color: #bebfba;
}

.signal-card__foot {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  line-height: 1.55;
}

.signal-card__foot strong {
  font-weight: 500;
}

.tool-section,
.making-section,
.submit-section {
  background: var(--ink);
  color: var(--white);
}

.tool-section__inner,
.making-section__inner,
.submit-section__inner {
  padding-block: var(--section);
}

.tool-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 18px;
  border-block: 1px solid #393b3e;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-group button {
  min-height: 38px;
  padding: 0 15px;
  border: 1px solid #4a4c50;
  border-radius: 999px;
  background: transparent;
  color: #b9bab5;
  cursor: pointer;
  font-size: 12px;
}

.filter-group button.is-active,
.filter-group button:hover {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.search-field {
  display: flex;
  width: min(320px, 100%);
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  border: 1px solid #4a4c50;
  border-radius: 999px;
}

.search-field input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--white);
}

.search-field input::placeholder {
  color: #7f817c;
}

.result-count {
  margin: 14px 0 20px;
  color: #8e908b;
  font-family: var(--mono);
  font-size: 10px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.tool-card {
  position: relative;
  display: flex;
  min-height: 390px;
  flex-direction: column;
  padding: 26px;
  overflow: hidden;
  border: 1px solid #404246;
  border-radius: var(--radius-card);
  background: var(--surface-dark);
  transition: background 180ms ease, color 180ms ease;
}

.tool-card:hover {
  background: var(--paper-2);
  color: var(--ink);
}

.tool-card__top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.05em;
}

.tool-card__number {
  display: grid;
  width: 72px;
  height: 72px;
  margin-top: 36px;
  border: 1px solid #4a4c50;
  border-radius: 50%;
  color: var(--yellow);
  font-family: var(--mono);
  font-size: 13px;
  place-items: center;
  transition: transform 300ms var(--ease), border-color 180ms ease;
}

.tool-card:hover .tool-card__number {
  border-color: var(--ink);
  transform: rotate(12deg);
}

.tool-card h3 {
  margin: 26px 0 8px;
  font-size: clamp(27px, 2.3vw, 38px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.05em;
}

.tool-card__best {
  margin: 0;
  color: #a9aaa5;
  font-size: 13px;
}

.tool-card__best span,
.tool-card__why span,
.tool-card__when span {
  display: block;
  margin-bottom: 7px;
  color: #9a9c96;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.tool-card:hover .tool-card__best {
  color: var(--muted);
}

.tool-card__why {
  margin: 28px 0 0;
  padding-top: 20px;
  border-top: 1px solid #4a4c50;
  font-size: 14px;
}

.tool-card__when {
  margin: auto 0 0;
  padding-top: 24px;
  color: #8e908b;
  font-size: 12px;
}

.tool-card:hover .tool-card__when {
  color: var(--muted);
}

.empty-state {
  padding: 40px 0;
  color: #a9aaa5;
}

.aesthetic-stage {
  display: grid;
  min-height: 600px;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.7fr);
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius-card);
}

.aesthetic-visual {
  position: relative;
  display: grid;
  min-height: 600px;
  place-items: center;
  overflow: hidden;
  border-right: 1px solid var(--ink);
  background: var(--accent, var(--blue));
  color: var(--ink);
}

.aesthetic-visual::before {
  position: absolute;
  width: 76%;
  height: 76%;
  border: 1px solid currentColor;
  border-radius: 50%;
  content: "";
  transform: rotate(-9deg);
}

.aesthetic-visual::after {
  position: absolute;
  width: 42%;
  height: 120%;
  border-inline: 1px solid currentColor;
  content: "";
  transform: rotate(28deg);
}

.aesthetic-visual__label {
  position: absolute;
  top: 22px;
  left: 22px;
  z-index: 2;
  padding: 7px 10px;
  border: 1px solid currentColor;
  background: var(--paper-2);
  font-family: var(--mono);
  font-size: 9px;
}

.aesthetic-visual strong {
  position: relative;
  z-index: 2;
  max-width: 80%;
  font-size: clamp(48px, 7.5vw, 118px);
  font-weight: 650;
  line-height: 0.78;
  letter-spacing: -0.085em;
  text-align: center;
  text-transform: uppercase;
  mix-blend-mode: luminosity;
}

.aesthetic-visual__stack {
  position: absolute;
  right: 20px;
  bottom: 20px;
  z-index: 2;
  max-width: 50%;
  font-family: var(--mono);
  font-size: 9px;
  text-align: right;
}

.aesthetic-copy {
  display: flex;
  flex-direction: column;
  padding: clamp(28px, 4vw, 56px);
  background: var(--paper-2);
}

.aesthetic-copy__meta {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.05em;
}

.aesthetic-copy h3 {
  margin: 72px 0 12px;
  font-size: clamp(37px, 4vw, 64px);
  font-weight: 600;
  line-height: 0.96;
  letter-spacing: -0.055em;
}

.aesthetic-copy__pattern {
  color: var(--muted);
  font-size: 15px;
}

.aesthetic-copy__lesson {
  margin: auto 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 18px;
}

.aesthetic-copy__lesson span {
  display: block;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
}

.aesthetic-copy__links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 28px;
}

.aesthetic-copy__links a {
  border-bottom: 1px solid currentColor;
  font-size: 12px;
  font-weight: 700;
}

.aesthetic-index {
  display: grid;
  grid-template-columns: none;
  grid-template-rows: 1fr;
  grid-auto-columns: minmax(210px, 1fr);
  grid-auto-flow: column;
  gap: 12px;
  margin-top: 16px;
  overflow-x: auto;
  padding: 2px 2px 10px;
  scrollbar-color: var(--line) transparent;
}

.aesthetic-tab {
  display: grid;
  min-height: 78px;
  grid-template-columns: 36px 1fr;
  align-items: center;
  gap: 9px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fffefb;
  cursor: pointer;
  text-align: left;
}

.aesthetic-tab span {
  font-family: var(--mono);
  font-size: 9px;
}

.aesthetic-tab strong {
  font-size: 12px;
  line-height: 1.2;
}

.aesthetic-tab.is-active,
.aesthetic-tab:hover {
  background: var(--ink);
  color: var(--white);
}

.making-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.making-card {
  display: grid;
  min-height: 330px;
  grid-template-columns: 40px minmax(0, 1fr);
  align-items: start;
  gap: 20px;
  padding: 28px;
  border: 1px solid #404246;
  border-radius: var(--radius-card);
  background: var(--surface-dark);
}

.making-card > span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--yellow);
}

.making-card h3 {
  margin: 0;
  font-size: clamp(24px, 2.3vw, 36px);
  font-weight: 550;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.making-card__body,
.making-card__try {
  grid-column: 2;
  margin: 0;
  color: #b7b8b3;
  font-size: 14px;
}

.making-card__try {
  align-self: end;
  padding-top: 22px;
  border-top: 1px solid #404246;
}

.making-card__body small,
.making-card__try small {
  display: block;
  margin-bottom: 8px;
  color: #969891;
  font-family: var(--mono);
  font-size: 9px;
}

.practice-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-block: 18px;
  border-block: 1px solid var(--line);
}

.practice-toolbar p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.practice-toolbar p span {
  margin-right: 12px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
}

.practice-list {
  display: grid;
  gap: 12px;
  margin-top: 40px;
}

.practice-item {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fffefb;
  transition: border-color 180ms ease, background 180ms ease;
}

.practice-item[open] {
  border-color: var(--ink);
  background: var(--paper-2);
}

.practice-item summary {
  display: grid;
  min-height: 110px;
  grid-template-columns: 52px minmax(280px, 0.78fr) minmax(180px, 0.42fr) minmax(180px, 0.52fr) 36px;
  align-items: center;
  gap: 22px;
  padding: 0 22px;
  cursor: pointer;
  list-style: none;
}

.practice-item summary::-webkit-details-marker {
  display: none;
}

.practice-item__number,
.practice-item__group,
.practice-item__status {
  font-family: var(--mono);
  font-size: 9px;
}

.practice-item__status {
  display: inline-flex;
  width: fit-content;
  min-height: 28px;
  align-items: center;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.practice-item summary h3 {
  margin: 0;
  font-size: clamp(22px, 2.1vw, 33px);
  font-weight: 550;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.practice-item__toggle {
  display: grid;
  width: 32px;
  height: 32px;
  border: 1px solid var(--line);
  border-radius: 50%;
  place-items: center;
  transition: transform 200ms var(--ease);
}

.practice-item[open] .practice-item__toggle {
  transform: rotate(45deg);
}

.practice-item__body {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  padding: 0 24px 32px 96px;
}

.practice-item__body p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.practice-item__body p span {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
}

.practice-item__body a {
  width: fit-content;
  border-bottom: 1px solid currentColor;
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
}

.section-more {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 24px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fffefb;
}

.section-more[hidden] {
  display: none;
}

.section-more p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.section-more button {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.section-more--dark {
  border-color: #404246;
  background: var(--surface-dark);
}

.section-more--dark p {
  color: #a9aaa5;
}

.section-more--dark button {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.submit-section__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.62fr);
  align-items: end;
  gap: 80px;
}

.submit-section h2 {
  margin: 0;
  font-size: clamp(54px, 7vw, 112px);
  font-weight: 600;
  line-height: 0.89;
  letter-spacing: -0.07em;
}

.submit-section__copy p {
  margin: 0 0 32px;
  color: #b7b8b3;
}

.source-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.source-link {
  display: grid;
  min-height: 170px;
  grid-template-columns: 36px 1fr 24px;
  align-content: start;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fffefb;
  transition: border-color 180ms ease, transform 180ms var(--ease);
}

.source-link:hover {
  border-color: var(--ink);
  transform: translateY(-3px);
}

.source-link span {
  font-family: var(--mono);
  font-size: 9px;
}

.source-link strong {
  font-size: 18px;
}

.source-link p {
  grid-column: 2 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.source-note {
  max-width: 920px;
  margin: 34px 0 0 auto;
  color: var(--muted);
  font-size: 12px;
}

.radar-footer {
  background: var(--ink);
  color: var(--white);
}

.radar-footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding-block: 54px;
}

.radar-footer img {
  width: auto;
  height: 44px;
  filter: grayscale(1) invert(1) brightness(1.6);
}

.radar-footer p {
  margin: 18px 0 0;
  color: #9b9d98;
}

.radar-footer__inner > div:last-child {
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 28px;
  font-family: var(--mono);
  font-size: 10px;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 80;
  max-width: min(360px, calc(100vw - 40px));
  padding: 12px 16px;
  border: 1px solid #3d3f42;
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 160ms ease, transform 160ms var(--ease);
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  :root {
    --shell: min(100% - 40px, 1080px);
  }

  .radar-header {
    grid-template-columns: 250px 1fr 130px;
    padding-inline: 20px;
  }

  .radar-header nav {
    gap: 18px;
  }

  .radar-hero {
    grid-template-columns: minmax(0, 1fr) minmax(380px, 0.8fr);
    gap: 48px;
  }

  .radar-hero h1 {
    font-size: clamp(54px, 6.6vw, 78px);
  }

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

  .aesthetic-stage {
    grid-template-columns: minmax(0, 1fr) 380px;
  }

  .aesthetic-index {
    grid-template-columns: none;
  }

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

@media (max-width: 840px) {
  :root {
    --shell: min(100% - 32px, 760px);
    --section: 84px;
  }

  .radar-header {
    grid-template-columns: 1fr auto;
    min-height: 66px;
    padding-inline: 16px;
  }

  .brand-lockup img {
    height: 30px;
  }

  .brand-lockup strong {
    display: none;
  }

  .radar-header nav {
    position: absolute;
    top: 66px;
    right: 0;
    left: 0;
    justify-content: flex-start;
    gap: 24px;
    overflow-x: auto;
    padding: 0 16px;
    border-bottom: 1px solid var(--line);
    background: var(--paper-2);
    color: var(--ink);
    scrollbar-width: none;
  }

  .radar-header nav::-webkit-scrollbar {
    display: none;
  }

  .radar-header nav a {
    flex: 0 0 auto;
    min-height: 48px;
  }

  .header-back {
    font-size: 0;
  }

  .header-back::after {
    font-size: 11px;
    content: "返回主站 ↗";
  }

  .radar-hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 56px;
    padding-top: 106px;
  }

  .radar-hero h1 {
    font-size: clamp(54px, 13vw, 82px);
  }

  .radar-hero__instrument {
    width: min(620px, calc(100% - 8px));
  }

  .field-note__inner,
  .section-heading,
  .submit-section__inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section-heading {
    align-items: start;
  }

  .signal-grid,
  .tool-grid {
    grid-template-columns: 1fr 1fr;
  }

  .tool-toolbar,
  .practice-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .search-field {
    width: 100%;
  }

  .aesthetic-stage {
    grid-template-columns: 1fr;
  }

  .aesthetic-visual {
    min-height: 500px;
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .aesthetic-copy {
    min-height: 480px;
  }

  .aesthetic-index {
    grid-template-columns: none;
  }

  .making-list,
  .source-list {
    grid-template-columns: 1fr;
  }

  .practice-item summary {
    grid-template-columns: 40px minmax(0, 1fr) 32px;
    gap: 12px;
    padding-block: 20px;
  }

  .practice-item__group,
  .practice-item__status {
    grid-column: 2;
  }

  .practice-item__toggle {
    grid-column: 3;
    grid-row: 1 / span 3;
  }

  .practice-item__body {
    grid-template-columns: 1fr;
    padding: 0 22px 28px 74px;
  }
}

@media (max-width: 560px) {
  :root {
    --shell: calc(100% - 24px);
    --section: 72px;
  }

  .radar-header {
    padding-inline: 12px;
  }

  .brand-lockup {
    gap: 8px;
  }

  .radar-hero {
    padding-top: 96px;
    padding-bottom: 64px;
  }

  .radar-hero h1 {
    font-size: clamp(48px, 15.2vw, 70px);
    letter-spacing: -0.07em;
  }

  .radar-hero__intro {
    margin-top: 28px;
  }

  .radar-hero__actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

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

  .radar-stats div:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .radar-stats div:nth-child(n + 3) {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
  }

  .radar-hero__instrument {
    border-radius: 12px;
    box-shadow: 8px 8px 0 var(--blue);
  }

  .instrument-stage {
    min-height: 360px;
  }

  .instrument-foot {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding-block: 10px;
  }

  .section-heading h2 {
    font-size: clamp(38px, 11vw, 50px);
  }

  .signal-section,
  .aesthetic-section,
  .practice-section,
  .source-section {
    padding: 28px 20px;
    border-radius: 20px;
  }

  .signal-grid,
  .tool-grid {
    grid-template-columns: 1fr;
  }

  .signal-card {
    min-height: 310px;
  }

  .tool-card {
    min-height: 365px;
  }

  .filter-group {
    flex-wrap: nowrap;
    margin-right: -12px;
    overflow-x: auto;
    padding-right: 12px;
    scrollbar-width: none;
  }

  .filter-group::-webkit-scrollbar {
    display: none;
  }

  .filter-group button {
    flex: 0 0 auto;
  }

  .aesthetic-visual {
    min-height: 390px;
  }

  .aesthetic-copy {
    min-height: 450px;
    padding: 24px;
  }

  .aesthetic-copy h3 {
    margin-top: 56px;
  }

  .aesthetic-index {
    grid-template-columns: none;
    grid-auto-columns: minmax(190px, 82vw);
  }

  .making-card {
    grid-template-columns: 36px 1fr;
    gap: 18px;
  }

  .making-card__body,
  .making-card__try {
    grid-column: 2;
  }

  .practice-item summary {
    grid-template-columns: 34px minmax(0, 1fr) 32px;
  }

  .practice-item__body {
    padding: 0 18px 24px 64px;
  }

  .section-more {
    align-items: stretch;
    flex-direction: column;
  }

  .section-more button {
    width: 100%;
  }

  .submit-section h2 {
    font-size: clamp(52px, 16vw, 76px);
  }

  .source-link {
    min-height: 92px;
    grid-template-columns: 32px 1fr 24px;
    gap: 10px;
  }

  .source-link p {
    grid-column: 2 / -1;
    padding-bottom: 12px;
  }

  .radar-footer__inner {
    grid-template-columns: 1fr;
  }

  .radar-footer__inner > div:last-child {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

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

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