/* ============================================================
   Aico — Night Gold website
   ------------------------------------------------------------
   Design language inherited from the Flutter app's
   `_NightGoldPalette` and Cormorant + Shippori Mincho pairing.
   ============================================================ */

:root {
  /* ─ Color ─ */
  --bg:           #0B0907;
  --bg-2:         #100D0A;
  --surface:      #15110D;
  --surface-2:    #1B1611;
  --surface-lift: #221C16;

  --gold:         #C8A96E;
  --gold-bright:  #DDC18F;
  --gold-shade:   #6A5028;
  --gold-dim:     rgba(200, 169, 110, 0.45);
  --gold-faint:   rgba(200, 169, 110, 0.14);
  --gold-trace:   rgba(200, 169, 110, 0.06);

  --cream:        #F0E8D8;
  --cream-2:      #C8B89A;
  --muted:        #8A7E70;
  --muted-2:      #5A5048;
  --muted-3:      #3A342C;

  --border:       #2A2218;
  --border-2:     rgba(200, 169, 110, 0.14);

  /* ─ Type ─
     display : 大見出し・引用・ロゴ用（Cormorant Garamond italic は ≥18px のみ）
     jp      : 和文本文（Shippori Mincho B1）
     ui      : ナビ・小ラベル・タグ・数字バッジなど ≤14px の英文 UI 用
  */
  --display: 'Cormorant Garamond', 'Shippori Mincho B1', serif;
  --jp:      'Shippori Mincho B1', 'Noto Serif JP', serif;
  --ui:      'Hanken Grotesk', system-ui, -apple-system, sans-serif;

  /* ─ Layout ─ */
  --container: 1240px;
  --gutter:    clamp(1.25rem, 4vw, 3rem);

  /* ─ Motion ─ */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  background: var(--bg);
  color: var(--cream);
  font-family: var(--jp);
  font-weight: 300;
  font-size: 14px;
  line-height: 1.9;
  letter-spacing: 0.06em;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--gold); color: var(--bg); }

/* ─── Grain & ambient backdrop ─── */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 200;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.92' numOctaves='2' seed='7'/><feColorMatrix values='0 0 0 0 0.78  0 0 0 0 0.66  0 0 0 0 0.43  0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(60vw 60vw at 12% -10%, rgba(200,169,110,0.10), transparent 70%),
    radial-gradient(50vw 50vw at 92% 110%, rgba(200,169,110,0.07), transparent 70%);
}

/* ─── Top nav ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 1.1rem var(--gutter);
  background: linear-gradient(180deg, rgba(11,9,7,0.78) 0%, rgba(11,9,7,0.35) 80%, transparent 100%);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  transition: padding 0.4s var(--ease), background 0.4s var(--ease);
}
.nav.is-scrolled {
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
  background: linear-gradient(180deg, rgba(11,9,7,0.92), rgba(11,9,7,0.6));
  border-bottom: 1px solid var(--border);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: block;
  object-fit: contain;
  flex-shrink: 0;
}
.brand-text {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  letter-spacing: 0.16em;
  color: var(--cream);
}

.nav__links {
  justify-self: center;
  display: flex;
  gap: 2.4rem;
  font-family: var(--ui);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cream);
  text-transform: uppercase;
}
.nav__links a {
  position: relative;
  padding: 0.3rem 0;
  transition: color 0.3s var(--ease);
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav__links a:hover { color: var(--gold); }
.nav__links a:hover::after { transform: scaleX(1); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  width: auto;
  justify-self: end;
  white-space: nowrap;
  font-family: var(--jp);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--bg);
  background: var(--gold);
  padding: 0.65rem 1.2rem;
  border-radius: 999px;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}
.nav__cta::after {
  content: '';
  width: 12px; height: 1px;
  background: var(--bg);
  position: relative;
}
.nav__cta:hover { background: var(--gold-bright); transform: translateY(-1px); }

/* ─── Layout primitives ─── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  position: relative;
  padding: clamp(6rem, 14vh, 11rem) 0;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
  margin-bottom: clamp(3rem, 7vh, 5rem);
}
@media (min-width: 880px) {
  .section-head {
    grid-template-columns: 220px 1fr;
    gap: 4rem;
  }
}

.section-numeral {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  white-space: nowrap;
}
.section-numeral::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--gold-dim), transparent);
  max-width: 120px;
}

.section-title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--cream);
}
.section-title em {
  font-style: italic;
  color: var(--gold);
}
.section-title .jp {
  display: block;
  font-family: var(--jp);
  font-style: normal;
  font-size: 0.45em;
  letter-spacing: 0.32em;
  color: var(--cream-2);
  margin-top: 0.9rem;
  font-weight: 300;
}

.section-lead {
  margin-top: 1.6rem;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 2.1;
  color: var(--cream-2);
  letter-spacing: 0.08em;
}

/* hairline divider */
.rule {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-2), transparent);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding: 8rem var(--gutter) 6rem;
  overflow: hidden;
}

.hero__decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__decor svg {
  position: absolute;
  width: 100%; height: 100%;
}
.hero__circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border);
}
.hero__circle--a { width: 520px; height: 520px; top: -120px; left: -160px; opacity: 0.6; }
.hero__circle--b { width: 360px; height: 360px; bottom: 60px; right: -120px; opacity: 0.5; border-color: var(--gold-faint); }
.hero__circle--c { width: 180px; height: 180px; top: 38%; right: 18%; opacity: 0.4; }

/* スマホでは大きな上部円が人物に被るため非表示 */
@media (max-width: 1023px) {
  .hero__circle--a { display: none; }
  .hero__circle--c { display: none; }
}

.hero__line {
  position: absolute;
  width: 1px;
  background: var(--gold);
  opacity: 0.35;
  transform-origin: top;
  animation: lineDraw 1.6s var(--ease) 0.3s both;
}
.hero__line--a { top: 16%; left: clamp(1rem, 6vw, 5rem); height: 28vh; }
.hero__line--b { bottom: 12%; right: clamp(1rem, 6vw, 5rem); height: 22vh; }

@keyframes lineDraw {
  0%   { transform: scaleY(0); }
  100% { transform: scaleY(1); }
}

/* constellation dots */
.hero__star {
  position: absolute;
  width: 3px; height: 3px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0;
  animation: twinkle 4s ease-in-out infinite;
}
@keyframes twinkle {
  0%, 100% { opacity: 0.15; transform: scale(0.7); }
  50%      { opacity: 0.85; transform: scale(1.0); }
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

.hero__intro {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  font-family: var(--ui);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 2.5rem;
  animation: fadeUp 1s var(--ease) 0.2s both;
}
.hero__intro::before {
  content: '';
  width: 36px; height: 1px;
  background: var(--gold);
}

.hero__title {
  display: block;
  width: clamp(220px, 38vw, 460px);
  max-width: 200px;
  height: auto;
  margin: 0 0 1.6rem;
  filter: drop-shadow(0 4px 32px rgba(200, 169, 110, 0.22));
  animation: fadeUp 1.2s var(--ease) 0.5s both;
}
/* visually-hidden text for screen readers when the wordmark is an image */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.hero__concept {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.5rem 1.1rem;
  border: 1px solid var(--gold);
  border-radius: 999px;
  font-family: var(--ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 2.8rem;
  animation: fadeUp 1.2s var(--ease) 0.7s both;
}
.hero__concept .dot {
  width: 4px; height: 4px;
  background: var(--gold);
  border-radius: 50%;
}

.hero__tagline {
  font-family: var(--jp);
  font-weight: 300;
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
  line-height: 2.4;
  letter-spacing: 0.18em;
  color: var(--cream-2);
  max-width: 28ch;
  animation: fadeUp 1.2s var(--ease) 0.9s both;
}
.hero__tagline::after {
  content: '';
  display: block;
  width: 36px;
  height: 1px;
  background: var(--gold);
  margin-top: 1.6rem;
  opacity: 0.55;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* vertical Japanese label on the right */
.hero__vlabel {
  position: relative;
  isolation: isolate;
  writing-mode: vertical-rl;
  font-family: var(--jp);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.5em;
  color: var(--cream-2);
  padding: 2.2rem 1rem;
  display: none;
  animation: fadeUp 1.4s var(--ease) 1.1s both;
}
.hero__vlabel::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(11, 9, 7, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  clip-path: polygon(
    0 0,
    100% 14px,
    100% 100%,
    0 calc(100% - 14px)
  );
}
@media (min-width: 1024px) {
  .hero__vlabel { display: inline-block; }
}
.hero__vlabel small {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.32em;
  color: var(--gold);
  display: block;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
}

/* scroll cue */
.hero__scroll {
  position: absolute;
  bottom: 2.2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.32em;
  color: var(--gold);
  text-transform: uppercase;
  z-index: 2;
}
.hero__scroll .bar {
  width: 1px;
  height: 60px;
  background: linear-gradient(180deg, var(--gold), transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll .bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gold);
  animation: scrollDot 2.4s ease-in-out infinite;
}
@keyframes scrollDot {
  0%   { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

/* hero background photo — viewport-fixed; later sections scroll over it */
.hero__bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("img/bg.jpg");
  background-repeat: no-repeat;
  background-position: 35% center;
  background-size: cover;
  animation: fadeUp 1.6s var(--ease) 0.2s both;
}
/* horizontal fade — solid bg on left fading to transparent on right (image visible) */
.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    to right,
    rgba(11, 9, 7, 1) 0%,
    rgba(11, 9, 7, 1) 12%,
    rgba(11, 9, 7, 0.85) 28%,
    rgba(11, 9, 7, 0.55) 45%,
    rgba(11, 9, 7, 0.2) 65%,
    rgba(11, 9, 7, 0) 85%
  );
}
/* subtle top/bottom vignette */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(11, 9, 7, 0.45) 0%,
    transparent 22%,
    transparent 78%,
    rgba(11, 9, 7, 0.6) 100%
  );
}
@media (min-width: 1024px) {
  .hero__bg {
    background-size: auto 100%;
    background-position: right center;
  }
  /* PC: stronger, longer fade so the left blends fully into bg */
  .hero__bg::before {
    background: linear-gradient(
      to right,
      rgba(11, 9, 7, 1) 0%,
      rgba(11, 9, 7, 1) 22%,
      rgba(11, 9, 7, 0.96) 32%,
      rgba(11, 9, 7, 0.75) 44%,
      rgba(11, 9, 7, 0.35) 58%,
      rgba(11, 9, 7, 0.08) 74%,
      rgba(11, 9, 7, 0) 90%
    );
  }
}

/* ============================================================
   CONCEPT
   ============================================================ */
.concept {
  background: var(--bg);
  position: relative;
}
.concept::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-2) 30%, var(--border-2) 70%, transparent);
}

.concept__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: start;
}
@media (min-width: 960px) {
  .concept__body {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 6rem;
  }
}

.concept__quote {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1.45;
  color: var(--cream);
  letter-spacing: 0.02em;
  position: relative;
  padding-left: 2.5rem;
}
.concept__quote::before {
  content: '';
  position: absolute;
  left: 0; top: 0.7rem;
  width: 1px; height: calc(100% - 1.4rem);
  background: var(--gold);
  opacity: 0.6;
}
.concept__quote em {
  color: var(--gold);
  font-style: italic;
}
.concept__quote .jp {
  display: block;
  margin-top: 1.4rem;
  font-family: var(--jp);
  font-style: normal;
  font-weight: 300;
  font-size: 14.5px;
  line-height: 2.1;
  letter-spacing: 0.08em;
  color: var(--cream-2);
}

.concept__notes {
  display: grid;
  gap: 1.6rem;
}
.concept__note {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-2) 100%);
  padding: 1.8rem 1.8rem 1.6rem;
  border-radius: 14px;
  position: relative;
  overflow: hidden;
}
.concept__note::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 2px; height: 100%;
  background: var(--gold);
  opacity: 0.5;
}
.concept__note h4 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 0.7rem;
}
.concept__note p {
  font-size: 13.5px;
  color: var(--cream-2);
  line-height: 1.9;
  letter-spacing: 0.08em;
}

/* ============================================================
   FEATURES
   ============================================================ */
.features {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 60%, var(--bg) 100%);
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
}
@media (min-width: 760px) {
  .features__grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1100px) {
  .features__grid { grid-template-columns: repeat(3, 1fr); }
}

.feature {
  background: var(--surface);
  padding: 2.6rem 2.2rem 2.8rem;
  position: relative;
  transition: background 0.5s var(--ease);
}
.feature:hover {
  background: var(--surface-lift);
}
.feature__no {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 2rem;
}
.feature__no::after {
  content: '';
  width: 22px; height: 1px;
  background: var(--gold-dim);
}
.feature__icon {
  width: 38px; height: 38px;
  border: 1px solid var(--gold-dim);
  border-radius: 10px;
  margin-bottom: 1.6rem;
  display: grid; place-items: center;
  color: var(--gold);
  transition: border-color 0.4s var(--ease), transform 0.5s var(--ease);
}
.feature:hover .feature__icon {
  border-color: var(--gold);
  transform: rotate(-4deg);
}
.feature__icon svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.2; }
.feature__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: 24px;
  letter-spacing: 0.04em;
  color: var(--cream);
  margin-bottom: 0.4rem;
}
.feature__title-jp {
  font-family: var(--jp);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--gold);
  margin-bottom: 1.4rem;
}
.feature__body {
  font-size: 13px;
  line-height: 1.95;
  color: var(--cream-2);
  letter-spacing: 0.08em;
}
.feature__tags {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.feature__tags span {
  font-family: var(--ui);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cream-2);
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
}

/* ============================================================
   FOR WHOM
   ============================================================ */
.for-whom {
  background: var(--bg);
}

.for-whom__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
@media (min-width: 960px) {
  .for-whom__body {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 5rem;
  }
}

.for-whom__panel {
  position: relative;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--border);
  background: linear-gradient(160deg, var(--surface) 0%, var(--bg-2) 100%);
  border-radius: 18px;
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}
.for-whom__panel::before,
.for-whom__panel::after {
  content: '';
  position: absolute;
  border: 1px solid var(--gold-faint);
  border-radius: 50%;
}
.for-whom__panel::before { width: 320px; height: 320px; top: -120px; right: -120px; }
.for-whom__panel::after  { width: 180px; height: 180px; bottom: -50px; left: -60px; opacity: 0.6; }

.for-whom__panel-top,
.for-whom__panel-bottom { position: relative; z-index: 1; }
.for-whom__panel-top span {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.32em;
  color: var(--gold);
  text-transform: uppercase;
}
.for-whom__panel-quote {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.6rem, 2.5vw, 2.1rem);
  line-height: 1.5;
  color: var(--cream);
  margin: 2.2rem 0 1.6rem;
  position: relative;
  z-index: 1;
}
.for-whom__panel-quote .jp {
  display: block;
  font-family: var(--jp);
  font-style: normal;
  font-size: 0.7em;
  letter-spacing: 0.14em;
  color: var(--cream-2);
  margin-top: 1.2rem;
}
.for-whom__panel-mark {
  font-family: var(--ui);
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  text-transform: uppercase;
}

.for-whom__list {
  display: grid;
  gap: 1.4rem;
}
.for-whom__item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--border);
}
.for-whom__item:last-child { border-bottom: 0; }
.for-whom__item .no {
  font-family: var(--display);
  font-style: italic;
  font-size: 28px;
  font-weight: 300;
  color: var(--gold);
  letter-spacing: 0.05em;
  line-height: 1;
}
.for-whom__item h4 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: 20px;
  letter-spacing: 0.04em;
  color: var(--cream);
  margin-bottom: 0.4rem;
}
.for-whom__item p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--cream-2);
  letter-spacing: 0.08em;
}

/* ============================================================
   PLANS
   ============================================================ */
.plans {
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
  position: relative;
}

.plans__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}
@media (min-width: 760px) {
  .plans__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
  .plans__grid { grid-template-columns: repeat(3, 1fr); }
}

.plan {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.2rem 1.8rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.plan:hover {
  border-color: var(--gold-dim);
  transform: translateY(-4px);
}
.plan--featured {
  border-color: var(--gold);
  background: linear-gradient(180deg, var(--surface-lift) 0%, var(--surface) 100%);
}
.plan--featured::before {
  content: 'Recommended';
  position: absolute;
  top: -10px; right: 1.4rem;
  font-family: var(--ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  background: var(--gold);
  color: var(--bg);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
}
.plan--trial::before {
  content: '2 Weeks Free';
  position: absolute;
  top: -10px; right: 1.4rem;
  font-family: var(--ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  background: var(--bg);
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
}

.plan__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.2rem;
}
.plan__name {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  letter-spacing: 0.06em;
  color: var(--cream);
}
.plan__tier {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
}
.plan__price {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  font-family: var(--display);
  font-style: italic;
  color: var(--cream);
}
.plan__price .amount {
  font-size: 32px;
  font-weight: 400;
}
.plan__price .unit {
  font-family: var(--ui);
  font-style: normal;
  font-weight: 500;
  font-size: 11px;
  color: var(--cream-2);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.plan__price .note {
  font-family: var(--jp);
  font-style: normal;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.1em;
}

.plan__list {
  list-style: none;
  display: grid;
  gap: 0.7rem;
  font-size: 13px;
  color: var(--cream-2);
  letter-spacing: 0.08em;
  line-height: 1.7;
}
.plan__list li {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 0.6rem;
  align-items: start;
}
.plan__list li::before {
  content: '';
  width: 8px; height: 8px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  margin-top: 0.55rem;
}
.plan__list li.dim { color: var(--muted-2); }
.plan__list li.dim::before { border-color: var(--muted-3); }

.plan__footer {
  margin-top: auto;
  font-family: var(--ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
  padding-top: 0.7rem;
  border-top: 1px solid var(--border);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq {
  background: var(--bg);
}
.faq__list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
}
.faq__item {
  border-bottom: 1px solid var(--border);
}
.faq__btn {
  display: grid;
  grid-template-columns: 60px 1fr 32px;
  gap: 1.4rem;
  width: 100%;
  text-align: left;
  padding: 1.8rem 0;
  align-items: center;
  transition: padding 0.4s var(--ease);
}
.faq__btn:hover { padding-left: 0.4rem; }

.faq__no {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
}
.faq__q {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1rem, 1.6vw, 1.3rem);
  letter-spacing: 0.04em;
  color: var(--cream);
}
.faq__q .jp {
  display: block;
  font-family: var(--jp);
  font-style: normal;
  font-size: 0.8em;
  letter-spacing: 0.12em;
  color: var(--cream-2);
  margin-top: 0.3rem;
}
.faq__plus {
  position: relative;
  width: 22px; height: 22px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  justify-self: end;
}
.faq__plus::before,
.faq__plus::after {
  content: '';
  position: absolute;
  background: var(--gold);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.faq__plus::before { width: 10px; height: 1px; }
.faq__plus::after  { width: 1px; height: 10px; transition: transform 0.3s var(--ease); }
.faq__item.is-open .faq__plus::after { transform: translate(-50%, -50%) scaleY(0); }

.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--ease);
}
.faq__a-inner {
  padding: 0 0 2rem 76px;
  font-size: 13.5px;
  line-height: 2;
  color: var(--cream-2);
  letter-spacing: 0.08em;
  max-width: 70ch;
}
.faq__item.is-open .faq__a { max-height: 480px; }

/* ============================================================
   FINAL CTA
   ============================================================ */
.final-cta {
  background:
    radial-gradient(circle at 50% 0%, rgba(200,169,110,0.18), transparent 55%),
    var(--bg);
  text-align: center;
  padding: clamp(7rem, 16vh, 12rem) var(--gutter);
  position: relative;
  overflow: hidden;
}
.final-cta::before,
.final-cta::after {
  content: '';
  position: absolute;
  border: 1px solid var(--gold-faint);
  border-radius: 50%;
  pointer-events: none;
}
.final-cta::before { width: 540px; height: 540px; top: -240px; left: 50%; transform: translateX(-50%); }
.final-cta::after  { width: 380px; height: 380px; top: -160px; left: 50%; transform: translateX(-50%); opacity: 0.6; }

.final-cta__mark {
  display: inline-flex;
  font-family: var(--ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--gold);
  margin-bottom: 1.8rem;
  align-items: center;
  gap: 0.8rem;
  text-transform: uppercase;
}
.final-cta__mark::before,
.final-cta__mark::after { content: ''; width: 24px; height: 1px; background: var(--gold); }

.final-cta__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 1.25;
  letter-spacing: 0.04em;
  color: var(--cream);
  margin-bottom: 1.6rem;
}
.final-cta__title em { color: var(--gold); }
.final-cta__sub {
  font-family: var(--jp);
  font-size: 14px;
  letter-spacing: 0.18em;
  line-height: 2.1;
  color: var(--cream-2);
  max-width: 38ch;
  margin: 0 auto 2.6rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1.05rem 2.2rem;
  background: var(--gold);
  color: var(--bg);
  font-family: var(--jp);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.22em;
  border-radius: 999px;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.4s var(--ease);
  box-shadow: 0 0 30px rgba(200,169,110,0.0);
}
.btn-primary:hover {
  background: var(--gold-bright);
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(200,169,110,0.35);
}
.btn-primary svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.4; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.8rem;
  border: 1px solid var(--gold-dim);
  color: var(--cream);
  font-family: var(--jp);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.18em;
  border-radius: 999px;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

.final-cta__buttons { display: inline-flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  position: relative;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 4rem var(--gutter) 2.5rem;
  font-family: var(--jp);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.1em;
}
.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.6rem;
}
@media (min-width: 900px) {
  .footer__inner { grid-template-columns: 1.4fr 1fr 1fr; gap: 4rem; }
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.footer__brand .logo {
  display: flex; align-items: center; gap: 0.7rem;
}
.footer__brand .logo-text {
  font-family: var(--display);
  font-style: italic;
  font-size: 24px;
  letter-spacing: 0.16em;
  color: var(--cream);
}
.footer__brand p {
  font-size: 12px;
  line-height: 2;
  letter-spacing: 0.1em;
  color: var(--cream-2);
  max-width: 36ch;
}

.footer__col h5 {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--gold);
  margin-bottom: 1.2rem;
  text-transform: uppercase;
}
.footer__col ul {
  list-style: none;
  display: grid;
  gap: 0.7rem;
}
.footer__col a {
  color: var(--cream-2);
  transition: color 0.3s var(--ease);
}
.footer__col a:hover { color: var(--gold); }

.footer__base {
  max-width: var(--container);
  margin: 3rem auto 0;
  padding-top: 1.8rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--ui);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}
.footer__base .copy { letter-spacing: 0.12em; }

/* ============================================================
   Reveal-on-scroll
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ============================================================
   LEGAL PAGES (privacy / terms)
   ============================================================ */
.page-legal {
  background: var(--bg);
}
.legal-hero {
  position: relative;
  padding: 12rem var(--gutter) 4rem;
  overflow: hidden;
}
.legal-hero::before {
  content: '';
  position: absolute;
  top: -180px; left: -120px;
  width: 480px; height: 480px;
  border: 1px solid var(--border);
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none;
}
.legal-hero::after {
  content: '';
  position: absolute;
  bottom: -100px; right: -60px;
  width: 280px; height: 280px;
  border: 1px solid var(--gold-faint);
  border-radius: 50%;
  pointer-events: none;
}
.legal-hero__inner {
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.legal-hero__crumb {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gold);
  margin-bottom: 2rem;
  text-transform: uppercase;
}
.legal-hero__crumb::before { content: ''; width: 24px; height: 1px; background: var(--gold); }
.legal-hero__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 1.05;
  letter-spacing: 0.04em;
  color: var(--cream);
}
.legal-hero__title .jp {
  display: block;
  font-family: var(--jp);
  font-style: normal;
  font-size: 0.32em;
  letter-spacing: 0.36em;
  color: var(--cream-2);
  margin-top: 1.2rem;
  font-weight: 300;
}
.legal-hero__meta {
  margin-top: 2rem;
  font-family: var(--ui);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cream-2);
  padding-top: 1.4rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}
.legal-hero__meta strong {
  color: var(--gold);
  font-weight: 600;
  margin-right: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 10.5px;
}

.legal-body {
  max-width: var(--container);
  margin: 0 auto;
  padding: 2rem var(--gutter) 6rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}
@media (min-width: 1024px) {
  .legal-body {
    grid-template-columns: 240px 1fr;
    gap: 6rem;
  }
}

.legal-toc {
  position: sticky;
  top: 110px;
  align-self: start;
  font-family: var(--ui);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cream-2);
  display: none;
}
@media (min-width: 1024px) {
  .legal-toc { display: block; }
}
.legal-toc h5 {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}
.legal-toc ul {
  list-style: none;
  display: grid;
  gap: 0.55rem;
  border-left: 1px solid var(--border);
  padding-left: 1.2rem;
}
.legal-toc a {
  color: var(--cream-2);
  transition: color 0.3s var(--ease);
  display: block;
}
.legal-toc a:hover { color: var(--gold); }

.legal-article {
  font-family: var(--jp);
  font-size: 14px;
  line-height: 2.1;
  color: var(--cream-2);
  letter-spacing: 0.08em;
  max-width: 70ch;
}
.legal-article h2 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  letter-spacing: 0.04em;
  color: var(--cream);
  margin: 3.4rem 0 1.2rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.legal-article h2 .num {
  font-family: var(--ui);
  font-weight: 600;
  font-size: 0.55em;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
}
.legal-article h2:first-of-type { margin-top: 0; }
.legal-article h3 {
  font-family: var(--jp);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.12em;
  color: var(--cream);
  margin: 2rem 0 0.8rem;
}
.legal-article p { margin-bottom: 1.2rem; }
.legal-article ol,
.legal-article ul {
  margin: 0.4rem 0 1.4rem 1.6rem;
  display: grid;
  gap: 0.6rem;
}
.legal-article ol li,
.legal-article ul li {
  padding-left: 0.4rem;
}
.legal-article ol li::marker {
  color: var(--gold);
  font-family: var(--display);
  font-style: italic;
}
.legal-article ul li {
  list-style: none;
  position: relative;
  padding-left: 1.2rem;
}
.legal-article ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.85em;
  width: 6px; height: 1px;
  background: var(--gold);
}
.legal-article strong {
  color: var(--cream);
  font-weight: 500;
  letter-spacing: 0.1em;
}
.legal-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.6rem;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.legal-article th {
  background: var(--surface);
  font-family: var(--ui);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  text-align: left;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
}
.legal-article td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--cream-2);
}
.legal-article tr:last-child td { border-bottom: 0; }

/* Responsive table: PC は通常 table、モバイルでは行単位のカード型に変換。
   各 td に data-label="列名" を持たせることで小画面でも列ラベルを表示する。 */
@media (max-width: 720px) {
  .legal-article table.legal-table {
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    display: block;
  }
  .legal-article table.legal-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    border: 0;
  }
  .legal-article table.legal-table tbody,
  .legal-article table.legal-table tr {
    display: block;
    width: 100%;
  }
  .legal-article table.legal-table tr {
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border);
  }
  .legal-article table.legal-table tr:last-child {
    border-bottom: 0;
  }
  .legal-article table.legal-table td {
    display: block;
    padding: 0.7rem 1rem;
    border-bottom: 1px dashed var(--border);
  }
  .legal-article table.legal-table tr td:last-child {
    border-bottom: 0;
  }
  .legal-article table.legal-table td::before {
    content: attr(data-label);
    display: block;
    font-family: var(--ui);
    font-weight: 600;
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 0.35rem;
  }
}

.legal-article dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 1rem 0 1.6rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
@media (min-width: 720px) {
  .legal-article dl { grid-template-columns: 220px 1fr; }
}
.legal-article dt {
  background: var(--surface);
  padding: 1.1rem 1.2rem;
  font-family: var(--jp);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold);
  border-bottom: 1px solid var(--border);
}
.legal-article dd {
  padding: 1.1rem 1.2rem;
  color: var(--cream-2);
  font-size: 13.5px;
  line-height: 1.95;
  border-bottom: 1px solid var(--border);
  margin: 0;
}
@media (max-width: 719px) {
  .legal-article dd { border-bottom: 1px solid var(--border); }
  .legal-article dt { border-bottom: 1px dashed var(--border); }
}
.legal-article dl > dt:last-of-type,
.legal-article dl > dd:last-of-type { border-bottom: 0; }
.legal-article dd .note {
  display: block;
  margin-top: 0.5rem;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.1em;
}

.legal-article .closing {
  margin-top: 3rem;
  padding-top: 1.8rem;
  border-top: 1px solid var(--border);
  font-family: var(--ui);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-align: right;
  text-transform: uppercase;
}

/* mobile nav adjustments */
@media (max-width: 880px) {
  /* 3 列レイアウトを維持し、中央 1fr で空白を吸収して
     CTA がコンパクトなまま右端に張り付くようにする */
  .nav {
    grid-template-columns: auto 1fr auto;
    gap: 0.6rem;
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .nav__links { display: none; }
  .nav__cta {
    font-size: 11px;
    letter-spacing: 0.14em;
    padding: 0.5rem 0.9rem;
    gap: 0.45rem;
  }
}
@media (max-width: 360px) {
  /* かなり狭い端末では「Aico」のテキストは省略してアイコンのみに */
  .brand-text { display: none; }
}