:root {
  --color-ink: #eef7ff;
  --color-muted: #a9bad0;
  --color-dim: #6d7f98;
  --color-bg: #050814;
  --color-bg-soft: #0a1022;
  --color-navy: #101a35;
  --color-navy-deep: #070b19;
  --color-blue: #2468ff;
  --color-violet: #6c55ff;
  --color-cyan: #8cf4ff;
  --color-gold: #d8b76a;
  --color-gold-soft: #f0d99a;
  --color-line: rgba(167, 209, 255, 0.18);
  --color-glass: rgba(12, 22, 48, 0.72);
  --space-xs: 0.5rem;
  --space-sm: 0.875rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.75rem;
  --space-2xl: 6rem;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-soft: 0 20px 70px rgba(0, 0, 0, 0.38);
  --shadow-cyan: 0 0 36px rgba(140, 244, 255, 0.22);
  --shadow-gold: 0 0 38px rgba(216, 183, 106, 0.18);
  --max-width: 1160px;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  font-family: "Noto Sans JP", system-ui, sans-serif;
  background:
    radial-gradient(circle at 78% 8%, rgba(108, 85, 255, 0.28), transparent 29rem),
    radial-gradient(circle at 16% 12%, rgba(36, 104, 255, 0.18), transparent 24rem),
    radial-gradient(circle at 50% -8%, rgba(240, 217, 154, 0.08), transparent 25rem),
    linear-gradient(180deg, #02040b, var(--color-bg) 34%, #060a16 62%, #03050c);
  line-height: 1.8;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(140, 244, 255, 0.038) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 244, 255, 0.038) 1px, transparent 1px),
    linear-gradient(rgba(216, 183, 106, 0.035) 1px, transparent 1px);
  background-size: 72px 72px, 72px 72px, 100% 18px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
  content: "";
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(5, 8, 20, 0.88), transparent 38%, rgba(5, 8, 20, 0.82)),
    linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.3)),
    repeating-linear-gradient(115deg, transparent 0 18px, rgba(255, 255, 255, 0.018) 18px 19px);
  content: "";
}

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

p,
h1,
h2,
h3 {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  height: var(--header-height);
  padding: 0 clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
}

.site-header.is-scrolled {
  border-color: var(--color-line);
  background: rgba(5, 8, 20, 0.78);
  backdrop-filter: blur(18px);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.55rem, 1vw, 1rem);
  margin-left: auto;
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.site-nav a {
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--color-cyan);
}

.nav-cta {
  padding: 0.55rem 0.9rem;
  border: 1px solid rgba(216, 183, 106, 0.45);
  border-radius: 999px;
  color: var(--color-ink);
  background: rgba(216, 183, 106, 0.08);
}

.menu-toggle {
  display: none;
}

.section {
  position: relative;
  width: min(var(--max-width), calc(100% - 24px));
  margin: 0 auto;
  padding: var(--space-2xl) 0;
}

.anchor-target {
  position: absolute;
  top: calc(var(--header-height) * -1);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.82fr);
  align-items: center;
  min-height: 100vh;
  gap: clamp(1.5rem, 3.4vw, 3.2rem);
  padding-top: calc(var(--header-height) + var(--space-xl));
}

.hero::before {
  position: absolute;
  left: -10%;
  top: 18%;
  z-index: -1;
  width: 56vw;
  height: 56vw;
  max-width: 760px;
  max-height: 760px;
  border: 1px solid rgba(216, 183, 106, 0.1);
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 34%, rgba(140, 244, 255, 0.04) 35% 35.5%, transparent 36%),
    conic-gradient(from 110deg, transparent, rgba(140, 244, 255, 0.08), transparent, rgba(216, 183, 106, 0.1), transparent);
  filter: blur(0.2px);
  content: "";
}

.hero-grid {
  position: absolute;
  inset: 8% -18% 6% 38%;
  z-index: -1;
  border: 1px solid rgba(140, 244, 255, 0.13);
  background-image:
    linear-gradient(rgba(140, 244, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 244, 255, 0.08) 1px, transparent 1px);
  background-size: 34px 34px;
  transform: perspective(680px) rotateY(-18deg) rotateX(9deg);
  transform-origin: center;
  box-shadow: inset 0 0 80px rgba(140, 244, 255, 0.05);
  opacity: 0.74;
}

.staff-lines {
  position: absolute;
  left: -8vw;
  right: -8vw;
  top: 32%;
  z-index: -1;
  height: 120px;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 17px,
    rgba(216, 183, 106, 0.14) 17px 18px
  );
  mask-image: linear-gradient(90deg, transparent, black 18%, black 70%, transparent);
  opacity: 0.42;
  transform: rotate(-4deg);
}

.eyebrow {
  color: var(--color-gold);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2 {
  font-family: "Shippori Mincho", serif;
  letter-spacing: 0;
  line-height: 1.25;
}

h1 {
  max-width: 850px;
  margin-top: var(--space-md);
  font-size: clamp(2.5rem, 6.05vw, 5.45rem);
  text-shadow: 0 0 34px rgba(140, 244, 255, 0.12), 0 12px 40px rgba(0, 0, 0, 0.48);
}

.heading-line {
  display: block;
}

h2 {
  margin-top: var(--space-sm);
  font-size: clamp(2rem, 4vw, 3.3rem);
}

h3 {
  font-size: 1.15rem;
  line-height: 1.45;
}

.hero-lead {
  max-width: 730px;
  margin-top: var(--space-lg);
  color: var(--color-muted);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
}

.signal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: var(--space-lg);
}

.report-nature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: var(--space-md);
}

.report-nature-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0.32rem 0.68rem;
  border: 1px solid rgba(216, 183, 106, 0.24);
  border-radius: 999px;
  color: rgba(238, 247, 255, 0.8);
  background: rgba(216, 183, 106, 0.055);
  font-size: 0.76rem;
  font-weight: 700;
}

.signal-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0.35rem 0.72rem;
  border: 1px solid rgba(140, 244, 255, 0.22);
  border-radius: 999px;
  color: var(--color-muted);
  background:
    linear-gradient(90deg, rgba(140, 244, 255, 0.08), rgba(216, 183, 106, 0.05)),
    rgba(255, 255, 255, 0.025);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: var(--space-lg);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.8rem 1.25rem;
  border-radius: 999px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

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

.button-primary {
  color: #07101e;
  background: linear-gradient(135deg, var(--color-cyan), #e8fbff 48%, var(--color-gold-soft));
  box-shadow: 0 16px 42px rgba(140, 244, 255, 0.22), var(--shadow-gold);
}

.button-primary:hover {
  box-shadow: 0 20px 54px rgba(140, 244, 255, 0.3), 0 0 44px rgba(216, 183, 106, 0.2);
}

.button-secondary {
  border: 1px solid rgba(216, 183, 106, 0.42);
  color: var(--color-ink);
  background: linear-gradient(135deg, rgba(216, 183, 106, 0.08), rgba(140, 244, 255, 0.035));
}

.button-secondary:hover {
  border-color: rgba(140, 244, 255, 0.45);
  background: rgba(140, 244, 255, 0.06);
}

.button-disabled,
.button-disabled:hover {
  color: rgba(234, 244, 255, 0.68);
  border: 1px solid rgba(234, 244, 255, 0.2);
  background: linear-gradient(135deg, rgba(234, 244, 255, 0.08), rgba(140, 244, 255, 0.035));
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.74;
  transform: none;
}

.button-primary.button-disabled,
.button-primary.button-disabled:hover {
  color: rgba(234, 244, 255, 0.72);
  border-color: rgba(140, 244, 255, 0.18);
  background: linear-gradient(135deg, rgba(140, 244, 255, 0.12), rgba(216, 183, 106, 0.06));
}

.hero-note {
  margin-top: var(--space-md);
  color: var(--color-dim);
  font-size: 0.9rem;
}

.wave-orbit {
  position: absolute;
  right: 3%;
  bottom: 13%;
  z-index: -1;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 120px;
  opacity: 0.58;
}

.wave-orbit span {
  width: 5px;
  height: 32px;
  border-radius: 999px;
  background: linear-gradient(var(--color-cyan), var(--color-violet));
  animation: wave 2.4s ease-in-out infinite;
}

.wave-orbit span:nth-child(2) {
  height: 76px;
  animation-delay: 0.12s;
}

.wave-orbit span:nth-child(3) {
  height: 104px;
  animation-delay: 0.24s;
}

.wave-orbit span:nth-child(4) {
  height: 58px;
  animation-delay: 0.36s;
}

.wave-orbit span:nth-child(5) {
  height: 92px;
  animation-delay: 0.48s;
}

.wave-orbit span:nth-child(6) {
  height: 46px;
  animation-delay: 0.6s;
}

.wave-orbit span:nth-child(7) {
  height: 70px;
  animation-delay: 0.72s;
}

.hero-visual {
  justify-self: end;
  width: min(100%, 470px);
  filter: drop-shadow(0 38px 80px rgba(0, 0, 0, 0.46));
}

.hero-signature {
  position: absolute;
  right: 0;
  bottom: clamp(1.5rem, 5vh, 3.25rem);
  z-index: 4;
  display: grid;
  grid-template-columns: auto auto;
  align-items: end;
  justify-content: flex-end;
  gap: 0.2rem 0.85rem;
}

.hero-wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 54px;
  padding: 0.58rem 0.82rem;
  border: 1px solid rgba(216, 183, 106, 0.24);
  border-radius: 999px;
  background: rgba(5, 8, 20, 0.62);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(14px);
}

.hero-wordmark-mark {
  position: relative;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 1px solid rgba(216, 183, 106, 0.52);
  border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, var(--color-cyan), transparent 35%), rgba(216, 183, 106, 0.1);
  box-shadow: var(--shadow-cyan);
}

.hero-wordmark-mark::after {
  position: absolute;
  top: 9px;
  left: 10px;
  width: 14px;
  height: 18px;
  border-right: 2px solid var(--color-gold);
  border-radius: 100% 0 100% 20%;
  transform: rotate(36deg);
  content: "";
}

.hero-wordmark strong,
.hero-wordmark small {
  display: block;
  white-space: nowrap;
}

.hero-wordmark strong {
  color: var(--color-ink);
  font-size: 1rem;
  line-height: 1.1;
}

.hero-wordmark small {
  margin-top: 0.14rem;
  color: var(--color-muted);
  font-size: 0.64rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ai-mark-shell {
  display: grid;
  width: 72px;
  height: 54px;
  place-items: end center;
  opacity: 0.92;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.ai-mark-shell:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.ai-mark-shell img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.ai-mark-shell.is-loaded img {
  opacity: 1;
}

.ai-mark-shell.is-missing {
  display: none;
}

.ai-mark-caption {
  grid-column: 2;
  margin: 0;
  color: var(--color-dim);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1.35;
  text-align: center;
  white-space: nowrap;
}

.studio-panel {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  padding: clamp(1.35rem, 2vw, 1.65rem);
  border: 1px solid rgba(140, 244, 255, 0.28);
  border-radius: 18px;
  background:
    linear-gradient(160deg, rgba(16, 26, 53, 0.98), rgba(6, 10, 22, 0.91)),
    radial-gradient(circle at 70% 20%, rgba(140, 244, 255, 0.22), transparent 18rem),
    linear-gradient(90deg, rgba(216, 183, 106, 0.08), transparent 32%);
  box-shadow: var(--shadow-soft), inset 0 1px 0 rgba(255, 255, 255, 0.1), inset 0 0 60px rgba(140, 244, 255, 0.04);
  transform: translateY(-84px);
}

.studio-panel::before {
  position: absolute;
  inset: 68px 20px 20px;
  height: auto;
  border: 1px solid rgba(140, 244, 255, 0.16);
  background-image:
    linear-gradient(rgba(140, 244, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 244, 255, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  content: "";
}

.studio-panel::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 18%),
    repeating-linear-gradient(0deg, transparent 0 10px, rgba(255, 255, 255, 0.018) 10px 11px);
  content: "";
}

.metric-row,
.report-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Hero mock の Creative Resonance Score サマリーカード。
   構造は本体 analyzer の report_template.py を参照しているが、
   ここでは Hero 装飾用の架空表示専用としてLPの色変数で再定義する。 */
.summary-card-top {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.summary-card-kicker {
  color: var(--color-gold);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.summary-card-id {
  color: var(--color-muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.crs-score-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1.18fr 1fr;
  gap: 0.62rem;
  align-items: end;
  margin-top: 1rem;
}

.crs-score-item {
  text-align: center;
  padding: 0.7rem 0.4rem 0.62rem;
  border: 1px solid rgba(140, 244, 255, 0.22);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.045);
}

.crs-score-item-main {
  border-color: rgba(216, 183, 106, 0.55);
  background:
    radial-gradient(circle at 50% 0%, rgba(216, 183, 106, 0.22), rgba(255, 255, 255, 0.04) 62%),
    rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow-gold), inset 0 0 18px rgba(140, 244, 255, 0.07);
}

.crs-score-name {
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.crs-score-number {
  margin-top: 0.28rem;
  font-family: "Shippori Mincho", serif;
  font-size: 2.2rem;
  line-height: 0.95;
  color: var(--color-ink);
  text-shadow: 0 0 16px rgba(140, 244, 255, 0.22);
}

.crs-score-item-main .crs-score-number {
  font-size: 2.6rem;
  color: var(--color-gold-soft);
  text-shadow: 0 0 22px rgba(216, 183, 106, 0.55), 0 0 30px rgba(140, 244, 255, 0.18);
}

.crs-score-caption {
  margin-top: 0.32rem;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.crs-score-note {
  position: relative;
  z-index: 2;
  margin: 0.85rem 0 0;
  padding: 0;
  font-size: 0.68rem;
  line-height: 1.45;
  color: var(--color-muted);
  text-align: center;
}

.summary-card-rows {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 0.2rem;
  margin-top: 1rem;
  padding-top: 0.7rem;
  border-top: 1px solid rgba(140, 244, 255, 0.22);
}

.summary-card-row {
  display: grid;
  grid-template-columns: minmax(96px, 0.42fr) 1fr;
  gap: 0.55rem;
  align-items: center;
  padding: 0.32rem 0.05rem;
  border-bottom: 1px dashed var(--color-line);
  font-size: 0.78rem;
}

.summary-card-row:last-of-type {
  border-bottom: 0;
}

.summary-card-row > span:first-child {
  color: var(--color-gold);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.summary-card-row > span:last-child {
  color: var(--color-ink);
  font-size: 0.84rem;
  line-height: 1.4;
}

.summary-key-tempo-cell {
  display: inline-flex;
  align-items: center;
}

.summary-key-tempo-stack {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.65rem;
}

.summary-key-tempo-stack > span {
  padding: 0.18rem 0.5rem;
  border: 1px solid rgba(140, 244, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-muted);
  font-size: 0.72rem;
}

.summary-level-cell {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.55rem;
}

.summary-level {
  padding: 0.18rem 0.55rem;
  border: 1px solid rgba(140, 244, 255, 0.22);
  border-radius: 999px;
  background: rgba(140, 244, 255, 0.06);
  color: var(--color-cyan);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.summary-level-low {
  border-color: rgba(120, 220, 170, 0.45);
  background: rgba(120, 220, 170, 0.1);
  color: #b6f5d6;
}

.summary-level-medium {
  border-color: rgba(216, 183, 106, 0.45);
  background: rgba(216, 183, 106, 0.12);
  color: var(--color-gold-soft);
}

.summary-level-note {
  flex: 1 1 100%;
  color: var(--color-dim);
  font-size: 0.66rem;
  line-height: 1.35;
}

.summary-card-note {
  position: relative;
  z-index: 2;
  margin: 0.7rem 0 0;
  padding: 0;
  color: var(--color-muted);
  font-size: 0.66rem;
  line-height: 1.45;
}

.preview-score {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: end;
  gap: 0.15rem 1rem;
  padding: 1rem;
  border: 1px solid rgba(216, 183, 106, 0.32);
  background:
    linear-gradient(135deg, rgba(216, 183, 106, 0.12), rgba(140, 244, 255, 0.05)),
    rgba(255, 255, 255, 0.035);
}

.score-label,
.preview-block span {
  color: var(--color-gold);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.preview-score strong {
  grid-row: span 2;
  color: var(--color-ink);
  font-family: "Shippori Mincho", serif;
  font-size: 4.6rem;
  line-height: 0.9;
  text-shadow: 0 0 26px rgba(140, 244, 255, 0.2);
}

.preview-score span:last-child {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.preview-block {
  padding: 1rem;
  border: 1px solid rgba(140, 244, 255, 0.18);
  background: rgba(5, 8, 20, 0.42);
  transition: border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}

.preview-block:hover,
.similarity-panel div:hover {
  border-color: rgba(140, 244, 255, 0.34);
  background: rgba(140, 244, 255, 0.055);
  transform: translateX(3px);
}

.preview-block p {
  margin-top: 0.35rem;
  color: var(--color-ink);
  font-size: 0.94rem;
  line-height: 1.65;
}

.lyrics-block {
  border-left: 3px solid var(--color-gold);
}

.structure-map {
  display: grid;
  grid-template-columns: 0.7fr 1fr 0.86fr 1.4fr 0.65fr;
  min-height: 56px;
  overflow: hidden;
  border: 1px solid rgba(140, 244, 255, 0.18);
}

.structure-map span {
  display: grid;
  place-items: center;
  border-right: 1px solid rgba(140, 244, 255, 0.16);
  color: var(--color-muted);
  background: linear-gradient(180deg, rgba(140, 244, 255, 0.1), rgba(255, 255, 255, 0.025));
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.structure-map span:nth-child(4) {
  color: #07101e;
  background: linear-gradient(135deg, var(--color-cyan), var(--color-gold-soft));
}

.structure-map span:last-child {
  border-right: 0;
}

.chord-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chord-strip span {
  padding: 0.42rem 0.64rem;
  border: 1px solid rgba(216, 183, 106, 0.26);
  color: var(--color-gold-soft);
  background: rgba(216, 183, 106, 0.06);
  font-family: "Shippori Mincho", serif;
  font-size: 0.95rem;
}

.similarity-panel {
  display: grid;
  gap: 0.5rem;
}

.similarity-panel div {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 42px;
  padding: 0 0.8rem;
  border-bottom: 1px solid var(--color-line);
  background: linear-gradient(90deg, rgba(140, 244, 255, 0.045), transparent);
  transition: background 0.22s ease, transform 0.22s ease;
}

.similarity-panel span {
  color: var(--color-muted);
  font-size: 0.82rem;
}

.similarity-panel strong {
  color: var(--color-cyan);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.frequency-lines {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 13px;
  height: 250px;
  margin-top: var(--space-lg);
}

.frequency-lines i {
  display: block;
  width: 9px;
  height: 46px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--color-cyan), rgba(108, 85, 255, 0.24));
  box-shadow: 0 0 18px rgba(140, 244, 255, 0.26);
}

.frequency-lines i::after {
  display: block;
  width: 100%;
  height: 12px;
  border-radius: inherit;
  background: rgba(255, 255, 255, 0.7);
  content: "";
}

.frequency-lines i:nth-child(2) {
  height: 98px;
}

.frequency-lines i:nth-child(3) {
  height: 148px;
}

.frequency-lines i:nth-child(4) {
  height: 86px;
}

.frequency-lines i:nth-child(5) {
  height: 184px;
}

.frequency-lines i:nth-child(6) {
  height: 122px;
}

.frequency-lines i:nth-child(7) {
  height: 72px;
}

.frequency-lines i:nth-child(8) {
  height: 132px;
}

.analysis-ring {
  position: absolute;
  right: -58px;
  bottom: 92px;
  width: 230px;
  height: 230px;
  border: 1px solid rgba(216, 183, 106, 0.42);
  border-radius: 50%;
}

.analysis-ring::before,
.analysis-ring::after {
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(140, 244, 255, 0.16);
  border-radius: 50%;
  content: "";
}

.analysis-ring::after {
  inset: 68px;
  border-color: rgba(216, 183, 106, 0.22);
}

.analysis-ring span {
  position: absolute;
  inset: 38px;
  border: 1px dashed rgba(140, 244, 255, 0.38);
  border-radius: 50%;
}

.score-ribbon {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
  margin: 0.4rem 0 1rem;
}

.score-ribbon span {
  display: grid;
  min-height: 34px;
  place-items: center;
  border: 1px solid rgba(140, 244, 255, 0.16);
  color: var(--color-muted);
  background: rgba(255, 255, 255, 0.035);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.insight-chip {
  position: relative;
  z-index: 1;
  margin-bottom: 0.7rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(216, 183, 106, 0.28);
  border-left: 3px solid var(--color-gold);
  background: linear-gradient(90deg, rgba(216, 183, 106, 0.1), rgba(140, 244, 255, 0.035));
}

.insight-chip span {
  display: block;
  color: var(--color-gold);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.insight-chip strong {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.95rem;
}

.metric-row {
  position: relative;
  z-index: 1;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-muted);
}

.metric-row strong {
  color: var(--color-ink);
}

.section-heading {
  max-width: 760px;
}

.section-kicker {
  margin-bottom: var(--space-md);
  color: rgba(140, 244, 255, 0.42);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-heading p:not(.eyebrow) {
  margin-top: var(--space-md);
  color: var(--color-muted);
}

.problem-list,
.feature-grid,
.scene-grid,
.output-grid {
  display: grid;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.problem-list {
  grid-template-columns: repeat(3, 1fr);
}

.glass-card,
.feature-item,
.scene-card,
.output-card,
.notice-box,
.cta-inner {
  border: 1px solid var(--color-line);
  background: var(--color-glass);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.glass-card,
.feature-item,
.scene-card,
.output-card {
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.glass-card:hover,
.feature-item:hover,
.scene-card:hover,
.output-card:hover {
  border-color: rgba(140, 244, 255, 0.34);
  box-shadow: var(--shadow-soft), 0 0 44px rgba(140, 244, 255, 0.08);
  transform: translateY(-4px);
}

.glass-card {
  position: relative;
  min-height: 250px;
  overflow: hidden;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
}

.glass-card::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(216, 183, 106, 0.12), transparent 32%),
    repeating-linear-gradient(90deg, transparent 0 22px, rgba(140, 244, 255, 0.028) 22px 23px);
  content: "";
}

.glass-card > * {
  position: relative;
}

.card-number {
  display: inline-block;
  margin-bottom: var(--space-lg);
  color: var(--color-gold);
  font-family: "Shippori Mincho", serif;
  font-size: 2.5rem;
  line-height: 1;
}

.glass-card p,
.feature-item p,
.scene-card p,
.flow-list p,
.cta-inner p {
  margin-top: var(--space-sm);
  color: var(--color-muted);
}

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

.feature-item {
  position: relative;
  min-height: 310px;
  overflow: hidden;
  padding: var(--space-lg);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, rgba(12, 22, 48, 0.82), rgba(5, 8, 20, 0.78)),
    radial-gradient(circle at 18% 12%, rgba(216, 183, 106, 0.12), transparent 10rem);
}

.feature-item::after {
  position: absolute;
  right: -38px;
  bottom: -58px;
  width: 150px;
  height: 150px;
  border: 1px solid rgba(140, 244, 255, 0.17);
  border-radius: 50%;
  content: "";
}

.feature-item::before {
  position: absolute;
  left: var(--space-lg);
  right: var(--space-lg);
  bottom: var(--space-lg);
  height: 36px;
  background: repeating-linear-gradient(
    90deg,
    rgba(140, 244, 255, 0.32) 0 2px,
    transparent 2px 12px
  );
  mask-image: linear-gradient(90deg, black, transparent);
  opacity: 0.18;
  content: "";
}

.feature-icon {
  display: grid;
  width: 42px;
  height: 42px;
  margin-bottom: var(--space-lg);
  place-items: center;
  border: 1px solid rgba(216, 183, 106, 0.45);
  border-radius: 50%;
  color: var(--color-gold);
  font-family: "Shippori Mincho", serif;
}

.report-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.report-panel {
  padding: var(--space-md) var(--space-lg);
  border: 1px solid rgba(140, 244, 255, 0.2);
  border-radius: 12px;
  background:
    linear-gradient(90deg, rgba(216, 183, 106, 0.08), transparent 26%),
    linear-gradient(180deg, rgba(10, 16, 34, 0.94), rgba(5, 8, 20, 0.76));
  box-shadow: var(--shadow-soft);
}

.report-panel::before {
  display: block;
  margin-bottom: 0.4rem;
  color: rgba(216, 183, 106, 0.82);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  content: "FeatherTune Report Index";
}

.report-line {
  display: grid;
  grid-template-columns: 56px 1fr;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--color-line);
}

.report-line:last-child {
  border-bottom: 0;
}

.report-line span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(140, 244, 255, 0.2);
  color: var(--color-cyan);
  background: rgba(140, 244, 255, 0.045);
  font-weight: 900;
  font-size: 0.82rem;
}

.report-line p {
  color: var(--color-muted);
  text-align: left;
}

.perspective-layout,
.expansion-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.perspective-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid rgba(216, 183, 106, 0.24);
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, rgba(216, 183, 106, 0.11), transparent 38%),
    linear-gradient(180deg, rgba(12, 22, 48, 0.84), rgba(5, 8, 20, 0.74));
  box-shadow: var(--shadow-soft);
}

.perspective-panel::after {
  position: absolute;
  right: -72px;
  bottom: -96px;
  width: 210px;
  height: 210px;
  border: 1px solid rgba(140, 244, 255, 0.12);
  border-radius: 50%;
  content: "";
}

.perspective-panel p {
  position: relative;
  z-index: 1;
  color: var(--color-muted);
}

.perspective-tags {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: var(--space-lg);
}

.perspective-tags span {
  padding: 0.42rem 0.68rem;
  border: 1px solid rgba(140, 244, 255, 0.18);
  color: var(--color-ink);
  background: rgba(140, 244, 255, 0.055);
  font-size: 0.82rem;
}

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

.output-card {
  display: grid;
  grid-template-rows: 210px 1fr;
  overflow: hidden;
  border-radius: var(--radius-md);
  color: inherit;
  cursor: pointer;
  text-decoration: none;
  background:
    linear-gradient(180deg, rgba(12, 22, 48, 0.86), rgba(5, 8, 20, 0.76)),
    radial-gradient(circle at 20% 0%, rgba(216, 183, 106, 0.12), transparent 13rem);
}

.output-card:focus-visible {
  outline: 2px solid rgba(140, 244, 255, 0.78);
  outline-offset: 4px;
}

.output-card-primary {
  border-color: rgba(216, 183, 106, 0.34);
  box-shadow: var(--shadow-soft), 0 0 40px rgba(216, 183, 106, 0.08);
}

.output-preview {
  position: relative;
  overflow: hidden;
  padding: 1rem;
  border-bottom: 1px solid var(--color-line);
  background:
    linear-gradient(rgba(140, 244, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 244, 255, 0.055) 1px, transparent 1px),
    rgba(5, 8, 20, 0.5);
  background-size: 24px 24px;
}

.output-preview::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(216, 183, 106, 0.12), transparent 42%);
  content: "";
}

.mini-report-head,
.mini-index,
.visual-bars,
.visual-notes,
.session-line,
.session-dot,
.session-note {
  position: relative;
  z-index: 1;
}

.mini-report-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--color-gold);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.mini-report-head strong {
  color: var(--color-cyan);
}

.mini-index {
  display: grid;
  gap: 0.44rem;
  margin-top: 1.2rem;
}

.mini-index span {
  display: block;
  padding: 0.42rem 0.62rem;
  border: 1px solid rgba(140, 244, 255, 0.16);
  color: var(--color-muted);
  background: rgba(255, 255, 255, 0.035);
  font-size: 0.78rem;
}

.visual-bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: end;
  gap: 0.55rem;
  height: 112px;
  margin-top: 2.2rem;
}

.visual-bars span {
  display: block;
  border: 1px solid rgba(140, 244, 255, 0.2);
  background: linear-gradient(180deg, rgba(140, 244, 255, 0.74), rgba(108, 85, 255, 0.16));
}

.visual-bars span:nth-child(1) {
  height: 44%;
}

.visual-bars span:nth-child(2) {
  height: 78%;
}

.visual-bars span:nth-child(3) {
  height: 58%;
}

.visual-bars span:nth-child(4) {
  height: 92%;
  background: linear-gradient(180deg, var(--color-gold-soft), rgba(216, 183, 106, 0.12));
}

.visual-notes {
  display: flex;
  gap: 0.45rem;
  margin-top: 1rem;
}

.visual-notes i {
  display: block;
  width: 100%;
  height: 7px;
  border-radius: 999px;
  background: rgba(140, 244, 255, 0.22);
}

.session-sample {
  display: grid;
  place-items: center;
}

.session-line {
  width: min(190px, 80%);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(216, 183, 106, 0.8), transparent);
}

.session-dot {
  width: 52px;
  height: 52px;
  margin-top: -26px;
  border: 1px solid rgba(216, 183, 106, 0.6);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(140, 244, 255, 0.28), transparent 48%),
    rgba(5, 8, 20, 0.8);
  box-shadow: var(--shadow-cyan);
}

.session-note {
  margin-top: 1rem;
  padding: 0.42rem 0.7rem;
  border: 1px solid rgba(140, 244, 255, 0.18);
  color: var(--color-muted);
  background: rgba(255, 255, 255, 0.035);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.artist-sample {
  display: grid;
  align-content: center;
  gap: 1.1rem;
}

.artist-axis,
.artist-lines {
  position: relative;
  z-index: 1;
}

.artist-axis {
  display: grid;
  gap: 0.52rem;
}

.artist-axis span {
  display: block;
  padding: 0.42rem 0.62rem;
  border: 1px solid rgba(140, 244, 255, 0.16);
  color: var(--color-muted);
  background: rgba(255, 255, 255, 0.035);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.artist-lines {
  display: grid;
  grid-template-columns: 1fr 0.72fr 1.18fr;
  gap: 0.45rem;
  align-items: end;
  height: 42px;
}

.artist-lines i {
  display: block;
  height: 100%;
  border: 1px solid rgba(216, 183, 106, 0.22);
  background: linear-gradient(180deg, rgba(216, 183, 106, 0.44), rgba(140, 244, 255, 0.08));
}

.artist-lines i:nth-child(2) {
  height: 68%;
}

.artist-lines i:nth-child(3) {
  height: 86%;
}

.output-body {
  padding: var(--space-lg);
}

.output-rank {
  display: block;
  margin-bottom: var(--space-sm);
  color: var(--color-gold);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.output-body p {
  margin-top: var(--space-sm);
  color: var(--color-muted);
}

.expansion-list {
  display: grid;
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(12, 22, 48, 0.78), rgba(5, 8, 20, 0.64)),
    rgba(255, 255, 255, 0.025);
  box-shadow: var(--shadow-soft);
}

.expansion-list span {
  display: grid;
  min-height: 58px;
  align-items: center;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-muted);
  background:
    linear-gradient(90deg, rgba(216, 183, 106, 0.08), transparent 30%),
    rgba(255, 255, 255, 0.012);
  transition: color 0.2s ease, background 0.2s ease, padding-left 0.2s ease;
}

.expansion-list span:last-child {
  border-bottom: 0;
}

.expansion-list span:hover {
  padding-left: 1.35rem;
  color: var(--color-ink);
  background: rgba(140, 244, 255, 0.045);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: var(--space-md);
  color: var(--color-cyan);
  font-weight: 900;
}

.text-link::after {
  width: 1.7rem;
  height: 1px;
  background: linear-gradient(90deg, var(--color-cyan), transparent);
  content: "";
  transition: transform 0.2s ease;
}

.text-link:hover::after,
.output-card:hover .text-link::after,
.output-card:focus-visible .text-link::after {
  transform: translateX(4px);
}

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

.comparison-grid {
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: rgba(5, 8, 20, 0.42);
  box-shadow: var(--shadow-soft);
}

.scene-card {
  position: relative;
  overflow: hidden;
  padding: var(--space-lg);
  border: 0;
  border-right: 1px solid var(--color-line);
  border-radius: 0;
  box-shadow: none;
  background:
    linear-gradient(180deg, rgba(16, 26, 53, 0.78), rgba(6, 10, 22, 0.68)),
    linear-gradient(90deg, rgba(216, 183, 106, 0.12), transparent);
}

.scene-card:last-child {
  border-right: 0;
}

.scene-label {
  display: inline-block;
  margin-bottom: var(--space-md);
  color: var(--color-gold);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.scene-card::after {
  position: absolute;
  right: -40px;
  top: -80px;
  width: 120px;
  height: 220px;
  border-right: 1px solid rgba(216, 183, 106, 0.24);
  border-radius: 100% 0 100% 20%;
  transform: rotate(34deg);
  content: "";
}

.flow-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: var(--space-xl);
  border-top: 1px solid rgba(216, 183, 106, 0.42);
}

.flow-list li {
  position: relative;
  padding: var(--space-lg) var(--space-md) 0;
  border-top: 0;
  background: linear-gradient(180deg, rgba(140, 244, 255, 0.04), transparent);
}

.flow-list li::before {
  position: absolute;
  top: -7px;
  left: var(--space-md);
  width: 13px;
  height: 13px;
  border: 1px solid rgba(216, 183, 106, 0.82);
  border-radius: 50%;
  background: var(--color-bg);
  box-shadow: 0 0 18px rgba(216, 183, 106, 0.22);
  content: "";
}

.flow-list li::after {
  position: absolute;
  top: -13px;
  right: -7px;
  width: 14px;
  height: 14px;
  border-top: 1px solid rgba(216, 183, 106, 0.5);
  border-right: 1px solid rgba(216, 183, 106, 0.5);
  transform: rotate(45deg);
  content: "";
}

.flow-list li:last-child::after {
  display: none;
}

.flow-list span {
  color: var(--color-gold);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.notice-box {
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-lg);
}

.notice-box ul {
  display: grid;
  gap: 0.9rem;
  margin-top: var(--space-lg);
}

.notice-box li {
  position: relative;
  padding-left: 1.35rem;
  color: var(--color-muted);
}

.notice-box li::before {
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-gold);
  content: "";
}

.notice-box a {
  color: var(--color-cyan);
  font-weight: 900;
  text-decoration: underline;
  text-decoration-color: rgba(140, 244, 255, 0.32);
  text-underline-offset: 0.2em;
}

.cta {
  padding-top: var(--space-xl);
}

.cta-inner {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 6vw, 5rem);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 86% 20%, rgba(140, 244, 255, 0.2), transparent 18rem),
    linear-gradient(135deg, rgba(16, 26, 53, 0.95), rgba(6, 10, 22, 0.78));
}

.cta-inner .button-primary {
  min-width: 190px;
}

.cta-inner .button-secondary {
  opacity: 0.82;
}

.cta-inner::after {
  position: absolute;
  right: -70px;
  top: -110px;
  width: 270px;
  height: 420px;
  border-right: 2px solid rgba(216, 183, 106, 0.28);
  border-radius: 100% 0 100% 20%;
  transform: rotate(35deg);
  content: "";
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1.5rem;
  width: min(var(--max-width), calc(100% - 24px));
  margin: 0 auto;
  padding: var(--space-lg) 0 2.5rem;
  border-top: 1px solid var(--color-line);
  color: var(--color-dim);
  font-size: 0.9rem;
}

.site-footer p:first-child {
  color: var(--color-ink);
  font-weight: 900;
}

.sample-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(var(--max-width), calc(100% - 24px));
  margin: 0 auto;
  padding: 1.25rem 0 0;
}

.sample-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-ink);
}

.sample-brand strong,
.sample-brand small {
  display: block;
}

.sample-brand strong {
  line-height: 1.1;
}

.sample-brand small {
  margin-top: 0.12rem;
  color: var(--color-muted);
  font-size: 0.64rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-nav-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.55rem;
}

.sample-hero {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.sample-hero h1 {
  max-width: 880px;
}

.sample-section {
  padding-top: 0;
}

.sample-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.sample-card,
.sample-extension,
.about-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(12, 22, 48, 0.86), rgba(5, 8, 20, 0.76)),
    radial-gradient(circle at 16% 0%, rgba(216, 183, 106, 0.12), transparent 14rem);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.sample-card {
  display: grid;
  min-height: 300px;
  padding: var(--space-lg);
}

.about-card {
  min-height: 260px;
  padding: var(--space-lg);
}

.sample-card::after,
.sample-extension::after,
.about-card::after {
  position: absolute;
  right: -52px;
  bottom: -92px;
  width: 170px;
  height: 170px;
  border: 1px solid rgba(140, 244, 255, 0.13);
  border-radius: 50%;
  content: "";
}

.sample-card > *,
.sample-extension > *,
.about-card > * {
  position: relative;
  z-index: 1;
}

.sample-card h2,
.sample-extension h2,
.about-card h2 {
  margin-top: var(--space-sm);
  font-size: clamp(1.55rem, 2.5vw, 2.2rem);
}

.sample-card p,
.sample-extension p:not(.eyebrow),
.about-card p {
  margin-top: var(--space-sm);
  color: var(--color-muted);
}

.sample-card-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
  align-self: end;
  margin-top: var(--space-lg);
}

.sample-return-link {
  flex-basis: 100%;
  margin-top: 0.15rem;
}

.sample-status {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0.32rem 0.68rem;
  border: 1px solid rgba(216, 183, 106, 0.28);
  border-radius: 999px;
  color: var(--color-gold-soft);
  background: rgba(216, 183, 106, 0.07);
  font-size: 0.76rem;
  font-weight: 900;
}

.sample-disabled {
  min-height: 42px;
  opacity: 0.72;
  cursor: default;
}

.sample-disabled:hover {
  transform: none;
}

.sample-extension {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: clamp(1.5rem, 4vw, 3rem);
}

.sample-extension-actions {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: end;
  gap: 0.55rem;
  flex: 0 0 auto;
}

.route-strip,
.choice-grid,
.option-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.route-card,
.choice-card,
.option-card,
.origin-pass,
.guide-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(12, 22, 48, 0.86), rgba(5, 8, 20, 0.76)),
    radial-gradient(circle at 18% 0%, rgba(216, 183, 106, 0.1), transparent 14rem);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.route-card,
.choice-card,
.option-card {
  padding: var(--space-lg);
}

.route-card-primary,
.origin-pass {
  border-color: rgba(216, 183, 106, 0.34);
  box-shadow: var(--shadow-soft), 0 0 42px rgba(216, 183, 106, 0.08);
}

.route-card h2,
.guide-panel h2 {
  margin-top: var(--space-sm);
  font-size: clamp(1.7rem, 3vw, 2.65rem);
}

.route-card p,
.choice-card p,
.option-card p,
.origin-pass p,
.guide-panel p {
  margin-top: var(--space-sm);
  color: var(--color-muted);
}

.route-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: var(--space-lg);
}

.disabled-action {
  opacity: 0.72;
  cursor: default;
}

.disabled-action:hover {
  transform: none;
}

.origin-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.8fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.origin-pass {
  padding: clamp(1.5rem, 4vw, 3rem);
}

.origin-pass > span {
  color: var(--color-gold);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.origin-pass strong {
  display: block;
  margin-top: var(--space-md);
  color: var(--color-ink);
  font-family: "Shippori Mincho", serif;
  font-size: clamp(3rem, 6vw, 5.4rem);
  line-height: 1;
  text-shadow: 0 0 28px rgba(216, 183, 106, 0.16), 0 0 34px rgba(140, 244, 255, 0.1);
}

.mini-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-lg);
}

.mini-chip-list span {
  padding: 0.36rem 0.66rem;
  border: 1px solid rgba(216, 183, 106, 0.24);
  border-radius: 999px;
  color: var(--color-gold-soft);
  background: rgba(216, 183, 106, 0.06);
  font-size: 0.76rem;
  font-weight: 900;
}

.soft-note {
  padding-left: 0.8rem;
  border-left: 2px solid rgba(216, 183, 106, 0.36);
  color: var(--color-dim) !important;
  font-size: 0.9rem;
}

.choice-grid {
  margin-top: var(--space-xl);
}

.choice-card {
  display: grid;
  align-content: start;
  gap: var(--space-md);
}

.choice-card ul {
  display: grid;
  gap: 0.55rem;
  color: var(--color-muted);
}

.choice-card li,
.option-card p {
  position: relative;
}

.choice-card li {
  padding-left: 1.1rem;
}

.choice-card li::before {
  position: absolute;
  top: 0.76em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
  content: "";
}

.community-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.community-grid span {
  padding: 0.72rem 0.85rem;
  border: 1px solid rgba(140, 244, 255, 0.16);
  color: var(--color-muted);
  background: rgba(255, 255, 255, 0.035);
  font-size: 0.85rem;
  font-weight: 900;
}

.option-grid {
  margin-top: var(--space-xl);
}

.option-card {
  min-height: 230px;
}

.guide-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: clamp(1.5rem, 4vw, 3rem);
}

.guide-actions {
  display: grid;
  justify-items: end;
  gap: 0.65rem;
  flex: 0 0 auto;
}

.legal-hero {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.privacy-title {
  word-break: keep-all;
  overflow-wrap: normal;
  line-break: strict;
}

.privacy-title span {
  display: inline-block;
}

.legal-section {
  padding-top: 0;
}

.legal-card {
  display: grid;
  gap: var(--space-lg);
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(12, 22, 48, 0.86), rgba(5, 8, 20, 0.76)),
    radial-gradient(circle at 14% 0%, rgba(216, 183, 106, 0.1), transparent 15rem);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.legal-card article {
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-line);
}

.legal-card article:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.legal-card h2 {
  margin: 0;
  color: var(--color-ink);
  font-family: "Noto Sans JP", system-ui, sans-serif;
  font-size: clamp(1.1rem, 1.8vw, 1.45rem);
  line-height: 1.5;
}

.legal-card p,
.legal-list {
  margin-top: var(--space-sm);
  color: var(--color-muted);
}

.legal-card a {
  color: var(--color-cyan);
  font-weight: 900;
  text-decoration: underline;
  text-decoration-color: rgba(140, 244, 255, 0.32);
  text-underline-offset: 0.2em;
}

.legal-list {
  display: grid;
  gap: 0.55rem;
}

.legal-list li {
  position: relative;
  padding-left: 1.2rem;
}

.legal-list li::before {
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
  content: "";
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.9rem 1.25rem;
}

.footer-links a {
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-cyan);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.hero-content.reveal {
  transform: translateY(24px);
  transition-duration: 0.9s;
}

.hero-visual.reveal {
  transform: translateY(28px) scale(0.98);
  transition-duration: 0.95s;
  transition-delay: 0.08s;
}

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

@keyframes wave {
  0%,
  100% {
    transform: scaleY(0.72);
  }

  50% {
    transform: scaleY(1);
  }
}

@media (max-width: 980px) {
  .menu-toggle {
    position: relative;
    z-index: 25;
    display: grid;
    width: 44px;
    height: 44px;
    margin-left: auto;
    padding: 0;
    border: 1px solid var(--color-line);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    place-items: center;
  }

  .menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--color-ink);
    transition: transform 0.2s ease;
  }

  .menu-toggle.is-open span:first-child {
    transform: translateY(5px) rotate(45deg);
  }

  .menu-toggle.is-open span:last-child {
    transform: translateY(-5px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    inset: 0 0 auto auto;
    display: grid;
    width: min(100%, 360px);
    padding: calc(var(--header-height) + 1rem) 1.25rem 1.25rem;
    border-left: 1px solid var(--color-line);
    background: rgba(5, 8, 20, 0.96);
    box-shadow: var(--shadow-soft);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    backdrop-filter: blur(20px);
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav a {
    padding: 0.85rem 0;
  }

  .hero,
  .report-layout,
  .perspective-layout,
  .expansion-layout,
  .origin-layout {
    grid-template-columns: 1fr;
  }

  main {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
  }

  .section,
  .sample-header,
  .site-footer {
    width: min(100% - 24px, var(--max-width));
    max-width: 100%;
    margin-inline: auto;
    box-sizing: border-box;
  }

  .hero {
    min-height: auto;
  }

  .hero::before {
    left: -30%;
    top: 10%;
    width: 92vw;
    height: 92vw;
  }

  .hero-visual {
    justify-self: center;
    width: min(100%, 520px);
    margin-inline: auto;
  }

  .studio-panel {
    margin-inline: auto;
    transform: none;
  }

  .problem-list,
  .feature-grid,
  .scene-grid,
  .output-grid,
  .route-strip,
  .choice-grid,
  .option-grid,
  .community-grid,
  .flow-list {
    width: 100%;
    max-width: 100%;
    margin-inline: auto;
    box-sizing: border-box;
  }

  .glass-card,
  .feature-item,
  .scene-card,
  .output-card,
  .route-card,
  .choice-card,
  .origin-pass,
  .option-card {
    max-width: 100%;
    margin-inline: auto;
  }

  .hero-signature {
    position: static;
    grid-column: 1;
    justify-content: flex-start;
    margin-top: -0.5rem;
  }

  .problem-list,
  .feature-grid,
  .scene-grid,
  .output-grid,
  .route-strip,
  .choice-grid,
  .option-grid,
  .community-grid,
  .flow-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .flow-list {
    gap: var(--space-lg) 0;
  }

  .flow-list li:nth-child(2)::after {
    display: none;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 66px;
    --space-2xl: 4rem;
    --space-xl: 2.5rem;
  }

  body {
    line-height: 1.75;
  }

  .site-header {
    padding-inline: 1rem;
  }

  .sample-header {
    align-items: flex-start;
    padding-top: 1rem;
  }

  .page-nav-actions {
    justify-content: flex-start;
  }

  main {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
  }

  .section,
  .sample-header,
  .site-footer {
    width: calc(100% - 24px);
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
  }

  .hero {
    padding-top: calc(var(--header-height) + 2.2rem);
  }

  .hero-grid {
    inset: 44% -34% 8% 4%;
    opacity: 0.44;
    transform: perspective(520px) rotateY(-10deg) rotateX(8deg);
  }

  .staff-lines {
    top: 25%;
    height: 86px;
    opacity: 0.32;
  }

  h1 {
    font-size: clamp(2.25rem, 13vw, 3.6rem);
  }

  .privacy-title span {
    display: block;
  }

  .signal-tags {
    gap: 0.45rem;
  }

  .report-nature-tags {
    gap: 0.4rem;
  }

  .report-nature-tags span {
    min-height: 27px;
    font-size: 0.72rem;
  }

  .signal-tags span {
    min-height: 30px;
    font-size: 0.68rem;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .studio-panel {
    min-height: 410px;
    padding: 1rem;
  }

  .studio-panel::before {
    inset: 64px 16px 16px;
    background-size: 24px 24px;
  }

  .hero-signature {
    gap: 0.65rem;
  }

  .hero-wordmark {
    min-height: 50px;
    padding: 0.5rem 0.7rem;
  }

  .hero-wordmark-mark {
    width: 30px;
    height: 30px;
  }

  .hero-wordmark strong {
    font-size: 0.92rem;
  }

  .hero-wordmark small {
    font-size: 0.58rem;
  }

  .ai-mark-shell {
    width: 64px;
    height: 50px;
  }

  .ai-mark-caption {
    grid-column: 1 / -1;
    text-align: left;
  }

  .crs-score-grid {
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: 0.55rem;
  }

  .crs-score-item {
    padding: 0.6rem 0.5rem;
  }

  .crs-score-item-main {
    order: -1;
  }

  .crs-score-item-main .crs-score-number {
    font-size: 2.25rem;
  }

  .crs-score-note {
    font-size: 0.66rem;
    text-align: left;
  }

  .summary-card-row {
    grid-template-columns: 1fr;
    gap: 0.18rem;
    padding: 0.36rem 0.05rem;
  }

  .summary-card-row > span:first-child {
    font-size: 0.6rem;
  }

  .summary-card-row > span:last-child {
    font-size: 0.82rem;
  }

  .summary-key-tempo-stack > span {
    font-size: 0.7rem;
  }

  .summary-level {
    font-size: 0.64rem;
  }

  .summary-level-note {
    font-size: 0.64rem;
  }

  .preview-score strong {
    font-size: 3.7rem;
  }

  .structure-map {
    grid-template-columns: 1fr;
  }

  .structure-map span {
    min-height: 34px;
    border-right: 0;
    border-bottom: 1px solid rgba(140, 244, 255, 0.16);
  }

  .frequency-lines {
    height: 205px;
    gap: 9px;
  }

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

  .insight-chip strong {
    font-size: 0.86rem;
  }

  .metric-row {
    padding: 0.7rem 0;
  }

  .problem-list,
  .feature-grid,
  .scene-grid,
  .output-grid,
  .sample-grid,
  .about-grid,
  .route-strip,
  .choice-grid,
  .option-grid,
  .community-grid,
  .flow-list {
    grid-template-columns: 1fr;
  }

  .output-card,
  .output-card-primary {
    grid-column: auto;
    grid-template-rows: 190px 1fr;
  }

  .comparison-grid {
    border-radius: var(--radius-sm);
  }

  .scene-card {
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

  .scene-card:last-child {
    border-bottom: 0;
  }

  .flow-list {
    border-top: 0;
    border-left: 1px solid rgba(216, 183, 106, 0.42);
    gap: 0;
    margin-left: 0.4rem;
  }

  .flow-list li {
    padding: 0 0 1.75rem var(--space-lg);
  }

  .flow-list li::before {
    top: 0.35rem;
    left: -7px;
  }

  .flow-list li::after {
    display: none;
  }

  .glass-card,
  .feature-item {
    min-height: auto;
  }

  .report-panel {
    padding: 0.75rem 1rem;
  }

  .perspective-panel {
    padding: 1.25rem;
  }

  .perspective-tags span {
    font-size: 0.78rem;
  }

  .report-line {
    align-items: flex-start;
  }

  .report-line p {
    text-align: left;
  }

  .site-footer {
    display: grid;
  }

  .sample-extension {
    display: grid;
  }

  .guide-panel {
    display: grid;
  }

  .guide-actions {
    justify-items: start;
  }

  .sample-extension-actions {
    justify-items: start;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@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;
  }
}