/* 江東リンク 情報ハブ v3 — 理念×情報
   FV → 今日の一番 → 理念 → 三場面 → 最近10件 → 入口 → 応援
   紫グラデ・クリーム+テラコッタ新聞紙調は避ける */

:root {
  --ink: #102033;
  --ink-soft: #536274;
  --foam: #f7fdff;
  --paper: #f5fafc;
  --water: #0e7f9f;
  --water-mid: #1ba4b8;
  --water-light: #52bdd3;
  --primary: #1976d2;
  --primary-dark: #0d5eae;
  --gold: #ffc857;
  --line: rgba(16, 32, 51, 0.13);
  --shadow: 0 18px 48px rgba(16, 32, 51, 0.09);
  --nav-h: 4rem;
  --content: 72rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic UI", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  line-height: 1.75;
  letter-spacing: 0.03em;
}

a { color: inherit; text-underline-offset: 0.2em; }
a:hover { color: var(--primary); }

.wrap {
  width: min(100% - 2rem, var(--content));
  margin-inline: auto;
}

.kicker {
  margin: 0 0 0.45rem;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(14, 127, 159, 0.55);
}
.kicker__en {
  font-weight: 500;
}
.kicker--on-dark {
  color: rgba(255, 200, 87, 0.55);
}

.display {
  margin: 0.2rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 4.2vw, 2.9rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.4;
  overflow-wrap: anywhere;
  word-break: normal;
  line-break: strict;
}

.lead {
  margin: 0 0 2.2rem;
  max-width: 44rem;
  color: var(--ink-soft);
}

.reveal {
  opacity: 0;
  transform: translateY(1.2rem);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1rem, 4vw, 3rem);
  background: rgba(247, 253, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(247, 253, 255, 0.96);
  border-bottom-color: var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}
.brand__mark {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 1px var(--line);
}
.brand__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  font-weight: 600;
}
.brand__sub {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line);
  background: transparent;
  position: relative;
  cursor: pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  position: absolute;
  left: 0.55rem;
  right: 0.55rem;
  height: 1px;
  background: var(--ink);
}
.nav-toggle span { top: 50%; }
.nav-toggle span::before,
.nav-toggle span::after { content: ""; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }

.site-nav ul {
  display: flex;
  gap: clamp(0.8rem, 2vw, 1.35rem);
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  color: var(--ink-soft);
  white-space: nowrap;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--primary);
}

.mock-banner {
  display: none;
}

/* Buttons */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.7rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1.2rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--foam { background: #fff; color: var(--water); }
.btn--ghost { border-color: rgba(255, 255, 255, 0.45); color: #fff; background: transparent; }

/* Hero / Pulse */
.pulse {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  align-items: end;
  padding: calc(var(--nav-h) + 4rem) 0 5rem;
  color: var(--foam);
  overflow: hidden;
  isolation: isolate;
}
.pulse__sky {
  position: absolute;
  inset: 0;
  z-index: -3;
  background:
    linear-gradient(90deg, rgba(3, 46, 67, 0.72), rgba(4, 87, 113, 0.38) 55%, rgba(2, 48, 64, 0.2)),
    url("/hub/images/pending/koto-hub-hero-keyvisual-v2.png");
  background-size: cover;
  background-position: 55% 45%;
}
.pulse__water {
  position: absolute;
  inset: auto 0 0;
  height: 48%;
  z-index: -2;
  background: linear-gradient(to top, rgba(4, 72, 96, 0.72), transparent);
  animation: tide 12s ease-in-out infinite alternate;
}
.pulse__glow {
  position: absolute;
  inset: 20% 10% auto;
  height: 40%;
  z-index: -1;
  background: radial-gradient(ellipse at center, rgba(255, 200, 87, 0.22), transparent 65%);
  animation: mist 9s var(--ease) infinite alternate;
}
@keyframes tide {
  from { transform: translateY(0); }
  to { transform: translateY(-14px); }
}
@keyframes mist {
  from { opacity: 0.35; transform: scale(1); }
  to { opacity: 0.8; transform: scale(1.08); }
}
.pulse__inner {
  width: min(100% - 2rem, var(--content));
  margin-inline: auto;
  max-width: 46rem;
}
.pulse__eyebrow {
  margin: 0 0 0.7rem;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--gold);
}
.pulse__brand {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 10vw, 5.7rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.1;
  overflow-wrap: anywhere;
}
.pulse__lead {
  margin: 0 0 0.85rem;
  font-size: clamp(1.08rem, 2.5vw, 1.38rem);
  max-width: 38rem;
  color: rgba(255, 255, 255, 0.9);
}
.pulse__lead em {
  font-style: normal;
  color: var(--gold);
}
.pulse__line {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  letter-spacing: 0.1em;
}
.pulse__scroll {
  position: absolute;
  left: 50%;
  bottom: 1.75rem;
  transform: translateX(-50%);
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  opacity: 0.55;
  animation: bob 2.4s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.4; }
  50% { transform: translate(-50%, 6px); opacity: 0.8; }
}

/* Today pick */
.today-pick {
  padding: 4.5rem 0 3.5rem;
  background: #fff;
}
.today-pick__card {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.today-pick__loading {
  margin: 1.5rem 0;
  color: var(--ink-soft);
}
.today-pick__link {
  display: block;
  padding: 1.8rem 0.2rem 2rem;
  text-decoration: none;
  transition: background 0.25s var(--ease), padding-left 0.25s var(--ease);
}
.today-pick__link:hover {
  padding-left: 0.5rem;
  background: rgba(25, 118, 210, 0.035);
  color: var(--ink);
}
.today-pick__meta {
  margin: 0 0 0.7rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--water);
}
.today-pick__title {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.5vw, 2.2rem);
  letter-spacing: 0.06em;
  line-height: 1.45;
  font-weight: 600;
  overflow-wrap: anywhere;
}
.today-pick__hook {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--primary-dark);
}
.today-pick__desc {
  margin: 0 0 0.9rem;
  max-width: 40rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.today-pick__go {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.78rem;
  color: var(--primary);
}

/* Philosophy */
.philosophy {
  padding: 5rem 0;
  background: linear-gradient(135deg, #0c83a6, #20a6bf);
  color: #fff;
}
.philosophy__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
  align-items: center;
}
.philosophy .display { color: #fff; }
.philosophy__text {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
  max-width: 36rem;
}
.philosophy__quote {
  margin: 0;
  padding: 2rem;
  border-left: 3px solid var(--gold);
  background: rgba(255, 255, 255, 0.08);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
  letter-spacing: 0.07em;
  line-height: 1.6;
}

/* Today scenes — 3 cards */
.today {
  padding: 5rem 0;
  background: #fff;
}
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.scene-card {
  min-height: 22rem;
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  align-items: end;
  color: #fff;
  box-shadow: var(--shadow);
  background-size: cover;
  background-position: center;
}
.scene-card--eat {
  background-image:
    linear-gradient(150deg, rgba(40, 16, 10, 0.55), rgba(28, 12, 8, 0.35)),
    url("/hub/images/pending/koto-hub-scene-market-v2.png");
}
.scene-card--go {
  background-image:
    linear-gradient(150deg, rgba(4, 40, 58, 0.5), rgba(4, 40, 58, 0.28)),
    url("/hub/images/pending/koto-hub-scene-dawn-v2.png");
}
.scene-card--link {
  background-image:
    linear-gradient(150deg, rgba(17, 40, 70, 0.55), rgba(17, 40, 70, 0.3)),
    url("/hub/images/pending/koto-hub-scene-kids-v2.png");
}
.scene-card__body { padding: 2rem; }
.scene-card__num {
  margin: 0 0 1rem;
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--gold);
}
.scene-card__fact {
  margin: 0 0 1.2rem;
}
.scene-card__loading {
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
}
.scene-card__fact-link {
  display: grid;
  gap: 0.35rem;
  color: #fff;
  text-decoration: none;
}
.scene-card__fact-link:hover { color: #fff; }
.scene-card__fact-title {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 3.2vw, 1.35rem);
  letter-spacing: 0.04em;
  line-height: 1.45;
  font-weight: 600;
  overflow-wrap: anywhere;
}
.scene-card__fact-meta {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.78);
}
.scene-card__meaning {
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.9);
}
.scene-card__title {
  margin: 0.45rem 0 0.8rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  line-height: 1.4;
}
.scene-card__text {
  margin: 0 0 1rem;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.95rem;
}
.scene-card__link {
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
}
.scene-card__link:hover {
  color: #fff;
  border-bottom-color: #fff;
}

/* Recent 10 */
.recent { padding: 5rem 0; }
.recent__head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1.5rem;
}
.recent__head .display { margin-bottom: 0; }
.recent__note {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
  flex-shrink: 0;
}
.recent-list {
  display: grid;
  border-top: 1px solid var(--line);
}
.recent-list__loading,
.recent-list__error {
  margin: 1.5rem 0;
  color: var(--ink-soft);
}
.recent-item {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1.2rem 0.2rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: padding-left 0.2s var(--ease), background 0.2s var(--ease);
}
.recent-item:hover {
  padding-left: 0.5rem;
  color: var(--ink);
  background: rgba(25, 118, 210, 0.035);
}
.recent-meta {
  font-size: 0.72rem;
  color: var(--water);
  letter-spacing: 0.08em;
  line-height: 1.5;
}
.recent-title {
  margin: 0 0 0.25rem;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.recent-desc {
  margin: 0;
  font-size: 0.84rem;
  color: var(--ink-soft);
}
.recent-go {
  font-size: 0.74rem;
  color: var(--primary);
  white-space: nowrap;
}
.badges {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-top: 0.45rem;
}
.badge {
  font-size: 0.66rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: #edf4fa;
  color: #315a78;
}
.badge--food { background: #fff1df; color: #965400; }
.badge--event { background: #e9f8f1; color: #146b4a; }
.badge--local { background: #f2efff; color: #5c3c91; }
.badge--act {
  background: #eef6fb;
  color: #1f5f86;
  border: 1px solid rgba(31, 95, 134, 0.18);
}

/* Gateways */
.gateways {
  padding: 4.5rem 0;
  background: #fff;
}
.gateway-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}
.gateway {
  display: grid;
  gap: 0.25rem;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.gateway:hover {
  border-color: rgba(25, 118, 210, 0.35);
  background: rgba(25, 118, 210, 0.04);
  color: var(--ink);
}
.gateway strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
}
.gateway span {
  font-size: 0.84rem;
  color: var(--ink-soft);
}

/* Support */
.support {
  padding: 5rem 0;
  background:
    linear-gradient(135deg, rgba(13, 94, 174, 0.88), rgba(21, 150, 181, 0.82)),
    url("/hub/images/pending/koto-hub-join-v2.png");
  background-size: cover;
  background-position: 50% 40%;
  color: #fff;
}
.support__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}
.support .display { color: #fff; }
.support__text {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
  max-width: 36rem;
}
.support-links {
  display: grid;
  gap: 0.8rem;
}
.support-link {
  padding: 1rem 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.07);
  text-decoration: none;
  color: #fff;
  transition: background 0.25s var(--ease);
}
.support-link:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}
.support-link strong {
  display: block;
  margin-bottom: 0.2rem;
}
.support-link span {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.75);
}

/* Footer */
.site-footer {
  padding: 2.7rem 0 3rem;
  background: #0a1016;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.82rem;
}
.site-footer__brand {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.16em;
  color: #fff;
}
.site-footer p { margin: 0; max-width: 36rem; }
.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.2rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}
.site-footer__links a { color: #fff; text-decoration: none; }
.site-footer__links a:hover { text-decoration: underline; }
.site-footer__meta { margin-top: 1.2rem; opacity: 0.5; }

@media (max-width: 840px) {
  .br-pc { display: none; }
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    inset: var(--nav-h) 0 auto;
    background: rgba(247, 253, 255, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.25rem 1.4rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
  }
  .site-nav.is-open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }
  .site-nav ul { flex-direction: column; gap: 0.9rem; }
  .philosophy__grid,
  .scene-grid,
  .support__grid,
  .gateway-grid { grid-template-columns: 1fr; }
  .recent-item { grid-template-columns: 1fr; }
  .recent-go { justify-self: start; }
  .recent__head { flex-direction: column; align-items: start; }
  .brand__sub { display: none; }
  .pulse {
    padding: calc(var(--nav-h) + 2.5rem) 0 4rem;
    min-height: 92vh;
  }
  .pulse__brand { letter-spacing: 0.06em; }
  .pulse__lead { font-size: 1.05rem; }
  .philosophy__quote {
    font-size: 1.1rem;
    padding: 1.35rem 1.2rem;
  }
  .scene-card { min-height: 18rem; }
  .cta-row .btn { width: 100%; }
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--water-light);
  outline-offset: 3px;
}
.pulse a:focus-visible,
.philosophy a:focus-visible,
.support a:focus-visible {
  outline-color: var(--foam);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}