/* ============================================================
   wedelab — front-door hub
   Self-contained, lightweight. Reuses the brand palette from
   the gallery (assets/style.css) but ships standalone so the
   home page stays fast. WebGL-free; effects are CSS + a little JS.
   ============================================================ */

:root {
  --bg: #0b0d12;
  --bg-2: #11141c;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text: #eef1f7;
  --muted: #97a0b3;
  --muted-2: #6b7488;
  --accent: #7c5cff;
  --accent-2: #2bd1c4;
  --accent-3: #ff5c93;
  --ring: rgba(124, 92, 255, 0.55);
  --shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.7);
  --maxw: 1200px;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Inter', 'Noto Sans JP', system-ui, -apple-system, sans-serif;
}
html[data-theme='light'] {
  --bg: #f5f7fc;
  --bg-2: #ffffff;
  --surface: rgba(15, 23, 42, 0.03);
  --surface-2: rgba(15, 23, 42, 0.06);
  --border: rgba(15, 23, 42, 0.10);
  --border-strong: rgba(15, 23, 42, 0.18);
  --text: #141a26;
  --muted: #54607a;
  --muted-2: #7a849c;
  --shadow: 0 24px 60px -28px rgba(20, 30, 60, 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--sans); color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased; line-height: 1.65; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
::selection { background: var(--ring); color: #fff; }

/* ===== Ambient background (CSS only) ===== */
.bg-fx { position: fixed; inset: -20vmax; z-index: -2; pointer-events: none; }
.bg-fx::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(42vmax 42vmax at 14% 6%, rgba(124, 92, 255, 0.24), transparent 60%),
    radial-gradient(40vmax 40vmax at 88% 12%, rgba(43, 209, 196, 0.18), transparent 60%),
    radial-gradient(48vmax 48vmax at 50% 108%, rgba(255, 92, 147, 0.16), transparent 60%);
  filter: blur(10px);
  animation: drift 26s ease-in-out infinite alternate;
}
html[data-theme='light'] .bg-fx::before { opacity: .5; }
@keyframes drift { 0% { transform: translate3d(0,0,0) scale(1); } 100% { transform: translate3d(0,-3%,0) scale(1.07); } }
/* soft spotlight following the cursor (updated via JS custom props) */
.bg-fx .spot {
  position: fixed; top: 0; left: 0; width: 60vmax; height: 60vmax; border-radius: 50%;
  transform: translate(calc(var(--mx, 50vw) - 30vmax), calc(var(--my, 30vh) - 30vmax));
  background: radial-gradient(circle, rgba(124,92,255,.10), transparent 62%);
  transition: transform .35s cubic-bezier(.2,.7,.2,1); will-change: transform;
}
html[data-theme='light'] .bg-fx .spot { background: radial-gradient(circle, rgba(124,92,255,.08), transparent 62%); }

/* subtle dotted grid over the hero */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image: radial-gradient(currentColor 1px, transparent 1px);
  background-size: 34px 34px; color: var(--border);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000, transparent 75%);
  mask-image: radial-gradient(70% 60% at 50% 30%, #000, transparent 75%);
  opacity: .5;
}

/* ===== scroll progress (created by hub.js) ===== */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 120;
  transform: scaleX(0); transform-origin: 0 50%;
  background: linear-gradient(100deg, var(--accent), var(--accent-2) 55%, var(--accent-3));
  box-shadow: 0 0 12px -2px var(--ring); will-change: transform;
}

/* ===== Header ===== */
.hub-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: color-mix(in srgb, var(--bg) 64%, transparent);
  border-bottom: 1px solid var(--border);
}
.hh-inner { max-width: var(--maxw); margin: 0 auto; height: 64px; padding: 0 20px; display: flex; align-items: center; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand-mark {
  width: 26px; height: 26px; border-radius: 8px;
  background: conic-gradient(from 180deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  box-shadow: 0 0 0 1px var(--border-strong), 0 6px 18px -6px var(--ring);
  animation: spinmark 9s linear infinite;
}
@keyframes spinmark { to { filter: hue-rotate(360deg); } }
.brand-text { font-weight: 800; letter-spacing: .2px; font-size: 18px; }
.brand-text b { color: var(--accent-2); }
.hh-nav { display: flex; gap: 4px; margin-right: auto; }
.hh-nav a {
  font: 600 13.5px var(--sans); color: var(--muted); padding: 8px 12px; border-radius: 9px;
  transition: color .15s, background .15s;
}
.hh-nav a:hover { color: var(--text); background: var(--surface); }
.hh-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.hh-cta {
  font: 700 13.5px var(--sans); color: #fff; white-space: nowrap;
  padding: 9px 16px; border-radius: 999px;
  background: linear-gradient(100deg, var(--accent), var(--accent-3));
  box-shadow: 0 10px 26px -12px var(--ring); transition: transform .15s, box-shadow .25s;
}
.hh-cta:hover { transform: translateY(-1px); box-shadow: 0 16px 32px -12px var(--ring); }
.icon-btn {
  width: 40px; height: 40px; display: grid; place-items: center; border-radius: 11px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer;
  transition: transform .15s, background .2s, border-color .2s;
}
.icon-btn:hover { background: var(--surface-2); border-color: var(--border-strong); transform: translateY(-1px); }
.icon-btn svg { width: 20px; height: 20px; }
.ico-moon { display: none; }
html[data-theme='light'] .ico-sun { display: none; }
html[data-theme='light'] .ico-moon { display: block; }
@media (max-width: 760px) { .hh-nav { display: none; } }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; }
.hero-inner { position: relative; z-index: 1; max-width: 940px; margin: 0 auto; padding: clamp(70px, 11vw, 128px) 20px 40px; text-align: center; }
.hero-kicker { font: 700 12px/1 var(--mono); letter-spacing: 2.4px; color: var(--accent-2); margin: 0 0 20px; }
.hero-title { font-size: clamp(30px, 5.4vw, 58px); line-height: 1.1; font-weight: 900; letter-spacing: -0.025em; margin: 0 0 20px; text-wrap: balance; }
.grad {
  background: linear-gradient(100deg, var(--accent), var(--accent-2) 55%, var(--accent-3));
  background-size: 200% auto; -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent; animation: shine 6s linear infinite;
}
.grad2 { background-image: linear-gradient(100deg, var(--accent-3), var(--accent), var(--accent-2)); }
@keyframes shine { to { background-position: 200% center; } }
.hero-sub { max-width: 660px; margin: 0 auto 30px; color: var(--muted); font-size: clamp(15px, 1.7vw, 18px); }
.hero-sub b { color: var(--text); }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn { font: inherit; font-weight: 700; font-size: 15px; padding: 13px 26px; border-radius: 999px; cursor: pointer; border: 1px solid transparent; transition: transform .15s, box-shadow .25s, background .2s; }
.btn-primary { color: #fff; background: linear-gradient(100deg, var(--accent), var(--accent-3)); box-shadow: 0 12px 34px -12px var(--ring); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -12px var(--ring); }
.btn-ghost { color: var(--text); background: var(--surface); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-2); transform: translateY(-2px); border-color: var(--border-strong); }

.hero-stats { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px 40px; margin-top: 44px; }
.hero-stats span { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.hero-stats b { font: 900 clamp(26px, 4vw, 38px) var(--sans); letter-spacing: -.02em;
  background: linear-gradient(100deg, var(--text), var(--muted)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-stats i { font: 600 12px var(--mono); font-style: normal; color: var(--muted-2); letter-spacing: .05em; }
.scroll-hint { position: relative; z-index: 1; text-align: center; font: 700 11px var(--mono); letter-spacing: .3em; color: var(--muted-2); padding-bottom: 26px; animation: bob 2.4s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); opacity: .6; } 50% { transform: translateY(5px); opacity: 1; } }

/* ===== reveal on scroll ===== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s cubic-bezier(.2,.7,.2,1), transform .6s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* ===== How-to (value props, single 3-step) ===== */
.valprops { max-width: var(--maxw); margin: 0 auto; padding: clamp(30px, 5vw, 58px) 20px 8px; }
.vp-head { text-align: center; margin-bottom: 24px; }
.vp-head h2 { font-size: clamp(22px, 3.2vw, 32px); font-weight: 800; letter-spacing: -.02em; margin: 8px 0 0; }
.vp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.vp {
  border: 1px solid var(--border); border-radius: 16px; background: var(--surface);
  padding: 22px 22px 20px; display: flex; flex-direction: column; gap: 6px;
}
.vp-step { font: 800 10px var(--mono); letter-spacing: .16em; color: var(--accent-2); }
.vp-ico { font-size: 26px; }
.vp b { font-size: 16px; color: var(--text); }
.vp span { font-size: 13.5px; color: var(--muted); }
.vp span b { color: var(--accent-2); font-weight: 700; }
@media (max-width: 820px) { .vp-grid { grid-template-columns: 1fr; } }

/* ===== Section directory ===== */
.sections { max-width: var(--maxw); margin: 0 auto; padding: clamp(46px, 6vw, 78px) 20px 20px; }
.sec-en { font: 800 12px var(--mono); letter-spacing: .28em; color: var(--accent-3); }
.sec-head { text-align: center; margin-bottom: 30px; }
.sec-head h2 { font-size: clamp(24px, 3.6vw, 38px); font-weight: 800; letter-spacing: -.02em; margin: 10px 0 8px; }
.sec-head p { color: var(--muted); font-size: 14.5px; margin: 0; }

.sec-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.sec-card {
  grid-column: span 2; display: flex; flex-direction: column;
  border: 1px solid var(--border); border-radius: 18px; overflow: hidden; background: var(--surface);
  transition: transform .28s cubic-bezier(.2,.7,.2,1), border-color .25s, box-shadow .3s;
}
a.sec-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow); }
.sc-lg { grid-column: span 6; display: grid; grid-template-columns: 1.05fr 1fr; }
.sec-soon { opacity: .72; }

.sc-thumb { position: relative; height: 176px; overflow: hidden; background: var(--surface-2); display: flex; }
.sc-lg .sc-thumb { height: auto; min-height: 236px; }
.thumb-fallback { position: absolute; inset: 0; display: none; align-items: center; justify-content: center;
  font: 900 30px var(--mono); letter-spacing: .1em; color: rgba(255,255,255,.9); }

/* gallery bento thumb */
.thumb-gallery { columns: 3; column-gap: 10px; padding: 16px; align-content: center;
  background: radial-gradient(120% 120% at 20% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 60%), #0e1018; }
html[data-theme='light'] .thumb-gallery { background: radial-gradient(120% 120% at 20% 0%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 60%), #e9ecf5; }
.tg-tile {
  display: flex; align-items: flex-end; break-inside: avoid; margin-bottom: 10px;
  height: calc(var(--h) * 0.92px); border-radius: 10px; padding: 8px 10px;
  font: 800 10.5px var(--mono); letter-spacing: .08em; color: #fff;
}
.tg-tile:nth-child(1){ background: linear-gradient(160deg,#7c5cff,#4a39a4); }
.tg-tile:nth-child(2){ background: linear-gradient(160deg,#2bd1c4,#1c7d75); }
.tg-tile:nth-child(3){ background: linear-gradient(160deg,#ff5c93,#a4335e); }
.tg-tile:nth-child(4){ background: linear-gradient(160deg,#ffc45f,#a67a2c); color:#3a2a06; }
.tg-tile:nth-child(5){ background: linear-gradient(160deg,#5fd38a,#2c7a4e); }
.tg-tile:nth-child(6){ background: linear-gradient(160deg,#8b5cf6,#5a2ea0); }

/* vfx thumb (real images + fallback) */
.thumb-vfx { gap: 6px; background: radial-gradient(120% 120% at 50% 0%, #123, #05060a); }
.thumb-vfx img { flex: 1 1 0; min-width: 0; height: 100%; object-fit: cover; display: block; }
.thumb-vfx.noimg img { display: none; }
.thumb-vfx.noimg { background: radial-gradient(120% 120% at 50% 0%, #4df0ff33, #6a2ea0 70%, #05060a); }
.thumb-vfx.noimg .thumb-fallback { display: flex; color: #cfefff; }

/* showcase thumb */
.thumb-showcase { background: #0e1018; }
.thumb-showcase .thumb-fallback { display: flex; }
.thumb-showcase .ts { position: absolute; border-radius: 12px; opacity: .9; filter: blur(2px); }
.ts.a { inset: 16px auto auto 16px; width: 44%; height: 60%; background: linear-gradient(160deg,#ff6fa3,#c4356e); }
.ts.b { inset: auto 18px 18px auto; width: 46%; height: 64%; background: linear-gradient(160deg,#6f93ff,#4a39a4); }
.ts.c { inset: 30% auto auto 40%; width: 30%; height: 40%; background: linear-gradient(160deg,#dca85f,#715a36); }
.thumb-showcase .thumb-fallback { color: rgba(255,255,255,.95); text-shadow: 0 2px 16px rgba(0,0,0,.5); }

/* flow thumb */
.thumb-flow { background: linear-gradient(160deg,#141826,#0b0d12); }
.thumb-flow .thumb-fallback { display: flex; color: rgba(255,255,255,.9); }
.thumb-flow .tf-line { position: absolute; left: 12%; right: 12%; height: 2px; background: linear-gradient(90deg, transparent, var(--accent-2), transparent); opacity: .55; }
.thumb-flow .tf-line:nth-child(1){ top: 34%; } .thumb-flow .tf-line:nth-child(2){ top: 50%; opacity:.35; } .thumb-flow .tf-line:nth-child(3){ top: 66%; opacity:.25; }

/* components (store) thumb — mini product chips */
.thumb-comp { flex-wrap: wrap; align-content: center; justify-content: center; gap: 8px; padding: 20px;
  background: radial-gradient(120% 120% at 30% 0%, color-mix(in srgb, var(--accent) 30%, transparent), transparent 62%), repeating-linear-gradient(45deg,#12141c,#12141c 12px,#0e1018 12px,#0e1018 24px); }
.tc-chip { font: 700 11px var(--mono); color: #e2e8ff; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px; padding: 5px 11px; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }
.tc-glyph { width: 100%; text-align: center; margin-top: 6px; font: 800 22px var(--mono); color: color-mix(in srgb, var(--accent) 65%, #fff); opacity: .85; }

.sc-body { padding: 18px 20px 20px; display: flex; flex-direction: column; }
.sc-lg .sc-body { justify-content: center; padding: 26px 30px; }
.sc-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.sc-badge { font: 800 10.5px var(--mono); letter-spacing: .12em; color: #fff; padding: 4px 10px; border-radius: 999px; background: linear-gradient(100deg,var(--accent),var(--accent-3)); }
.badge-vfx { background: linear-gradient(100deg,#1fb6d8,#7c5cff); }
.badge-sc { background: linear-gradient(100deg,#ff5c93,#ff4d8d); }
.badge-fl { background: linear-gradient(100deg,#2bd1c4,#4f7cff); }
.badge-soon { background: none; color: var(--muted); border: 1px solid var(--border-strong); }
.badge-comp { background: linear-gradient(100deg,#8b5cf6,#2bd1c4); }
.sc-count { font: 600 12px var(--mono); color: var(--muted-2); }
.sc-body h3 { font-size: clamp(19px, 2.2vw, 24px); margin: 0 0 8px; font-weight: 800; letter-spacing: -.01em; }
.sc-body p { color: var(--muted); font-size: 13.8px; margin: 0 0 14px; }
.sc-open { margin-top: auto; font: 700 14px var(--sans); color: var(--accent-2); transition: transform .25s cubic-bezier(.2,.7,.2,1); }
.sc-open.muted { color: var(--muted-2); }
a.sec-card:hover .sc-open { text-decoration: underline; transform: translateX(5px); }
a.sec-card:hover .thumb-vfx img { transform: scale(1.05); transition: transform .5s cubic-bezier(.2,.7,.2,1); }

@media (max-width: 860px) {
  .sec-card, .sc-lg { grid-column: 1 / -1; }
  .sc-lg { grid-template-columns: 1fr; }
}

/* ===== How it works ===== */
.howworks { max-width: 960px; margin: 0 auto; padding: clamp(46px, 6vw, 78px) 20px 30px; text-align: center; }
.hw-head h2 { font-size: clamp(23px, 3.4vw, 34px); font-weight: 800; letter-spacing: -.02em; margin: 10px 0 26px; }
.hw-steps { list-style: none; margin: 0 0 30px; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; text-align: left; }
.hw-steps li {
  position: relative; border: 1px solid var(--border); border-radius: 16px; background: var(--surface);
  padding: 24px 22px 22px; display: flex; flex-direction: column; gap: 8px;
}
.hw-num { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font: 900 16px var(--mono); color: #fff; background: linear-gradient(100deg, var(--accent), var(--accent-3)); box-shadow: 0 10px 20px -8px var(--ring); }
.hw-steps b { font-size: 16px; color: var(--text); }
.hw-steps li > span:last-child { font-size: 13.2px; color: var(--muted); }
@media (max-width: 760px) { .hw-steps { grid-template-columns: 1fr; } }

/* ===== Footer ===== */
.hub-footer { border-top: 1px solid var(--border); margin-top: 20px; }
.hf-inner { max-width: var(--maxw); margin: 0 auto; padding: 40px 20px 56px; text-align: center; }
.hf-brand { font: 800 20px var(--sans); display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.hf-brand b { color: var(--accent-2); }
.hf-brand .brand-mark { width: 22px; height: 22px; }
.hf-links { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: center; margin-bottom: 16px; }
.hf-links a { font: 600 13.5px var(--sans); color: var(--muted); }
.hf-links a:hover { color: var(--accent-2); }
.hf-note { max-width: 620px; margin: 0 auto; color: var(--muted-2); font-size: 12.5px; }

/* ===== Closing CTA ===== */
.closing { max-width: 960px; margin: 0 auto; padding: clamp(40px, 6vw, 76px) 20px; text-align: center; }
.closing-inner h2 { font-size: clamp(22px, 3.4vw, 34px); font-weight: 800; letter-spacing: -.02em; margin: 0 0 22px; }
.closing-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* テーマ切替の円形リビール（View Transitions・非対応/reduced-motionは即時） */
::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
::view-transition-new(root) { z-index: 1; }
::view-transition-old(root) { z-index: 0; }