/* mitsu.css — nền tảng thiết kế Mitsu (2 theme). Spec: docs/superpowers/specs/2026-06-17-mitsu-foundation-design.md */
/* Fonts KHÔNG @import ở đây (chuỗi render-blocking phá preload-async fonts của index.html) —
   trang nào dùng mitsu.css phải tự <link> Google Fonts css2 Fraunces + Be Vietnam Pro + Noto Serif JP. */

:root {
  --bg:#F1E5CB; --surface:#ECE0C4; --surface-2:#E4D8BA;
  --text:#1C1C1A; --text-dim:#3A3833; --text-muted:rgba(28,28,26,.55);
  --accent:#C68A3E; --accent-deep:#9C6A2C; --seal:#B83A2E; --moss:#6E7A4F;
  --text-on-accent:var(--text);
  --line:rgba(28,28,26,.14); --line-soft:rgba(28,28,26,.08);
  --radius:8px; --radius-sm:4px;
  --disp:"Fraunces","Cormorant Garamond",Georgia,serif;
  --body:"Be Vietnam Pro",system-ui,sans-serif;
  --jp:"Noto Serif JP",serif;
}
:root[data-theme="dark"] {
  --bg:#16130E; --surface:#221C14; --surface-2:#2C2419;
  --text:#F2EBDD; --text-dim:rgba(242,235,221,.62); --text-muted:rgba(242,235,221,.4);
  --accent:#E0AC5E; --accent-deep:#C68A3E; --seal:#C9483B; --moss:#8A9568;
  --text-on-accent:var(--bg);
  --line:rgba(242,235,221,.12); --line-soft:rgba(242,235,221,.07);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:#16130E; --surface:#221C14; --surface-2:#2C2419;
    --text:#F2EBDD; --text-dim:rgba(242,235,221,.62); --text-muted:rgba(242,235,221,.4);
    --accent:#E0AC5E; --accent-deep:#C68A3E; --seal:#C9483B; --moss:#8A9568;
    --text-on-accent:var(--bg);
    --line:rgba(242,235,221,.12); --line-soft:rgba(242,235,221,.07);
  }
}

* { box-sizing:border-box; margin:0; padding:0; }
body.mitsu { background:var(--bg); color:var(--text); font-family:var(--body); font-weight:300; line-height:1.7; -webkit-font-smoothing:antialiased; }
.mitsu h1,.mitsu h2,.mitsu h3 { font-family:var(--disp); font-weight:500; line-height:1.1; }
.mitsu .jp { font-family:var(--jp); }
.mitsu .amber { color:var(--accent); }

/* --- brand marks --- */
.wm { font-family:var(--disp); font-weight:600; letter-spacing:.01em; color:var(--text); }
.wm .dot { color:var(--accent); }
.hanko,.bees,.badge { display:inline-block; vertical-align:middle; }
.hanko { width:40px; height:40px; }
.bees { width:120px; height:120px; }
.badge { width:96px; height:96px; }

/* --- three-bees loader --- */
@keyframes mitsu-drift { to { stroke-dashoffset:-200; } }
.mitsu-loader { display:flex; flex-direction:column; align-items:center; gap:12px; color:var(--text-dim); font-family:var(--disp); font-style:italic; }
.mitsu-loader .bees .fp1 { stroke-dasharray:5 7; animation:mitsu-drift 9s linear infinite; }
.mitsu-loader .bees .fp3 { stroke-dasharray:1 9; animation:mitsu-drift 14s linear infinite reverse; }
@media (prefers-reduced-motion:reduce) { .mitsu-loader .bees .fp1,.mitsu-loader .bees .fp3 { animation:none; } }

/* --- theme toggle --- */
.theme-toggle {
  display: inline-flex;
  position: relative;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  background: none;
  border: none;
  padding: 0;
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.hc-theme-icon {
  position: relative;
  width: 100%;
  height: 100%;
  color: var(--surface-2);
  transition: color 0.2s ease;
}
.theme-toggle:hover .hc-theme-icon {
  color: var(--accent);
}
.theme-icon-symbol {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1rem;
  line-height: 1;
  color: var(--text);
  transition: color 0.2s ease;
}
.theme-toggle:hover .theme-icon-symbol {
  color: var(--bg);
}
.theme-toggle[data-pref="light"] .theme-icon-symbol::before { content: "☀"; }
.theme-toggle[data-pref="dark"] .theme-icon-symbol::before { content: "☾"; }
.theme-toggle[data-pref="auto"] .theme-icon-symbol::before { content: "◐"; }

/* --- honeycomb cell --- */
.hc-cell { background:var(--surface); border:1px solid var(--line); display:flex; align-items:center; justify-content:center; color:var(--accent); overflow:hidden;
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%); }
.hc-cell img { width:100%; height:100%; object-fit:cover; }

/* --- menu: text line -> expandable detail --- */
.hc-menu { list-style:none; }
.hc-item { border-bottom:1px dotted var(--line); }
.hc-line { display:flex; align-items:baseline; gap:10px; width:100%; padding:11px 2px; background:none; border:0; cursor:pointer; text-align:left; color:var(--text); font:inherit; }
.hc-line:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }
.hc-name { font-weight:500; }
.hc-dots { flex:1; border-bottom:1px dotted var(--line); transform:translateY(-3px); min-width:14px; }
.hc-price { font-family:var(--disp); color:var(--accent); }
.hc-chev::before { content:"⌄"; color:var(--accent); display:inline-block; transition:transform .2s; }
.hc-line[aria-expanded="true"] .hc-chev::before { transform:rotate(180deg); }
.hc-detail { display:flex; gap:14px; align-items:center; padding:4px 2px 16px; }
.hc-detail[hidden] { display:none; }
.hc-detail .hc-cell { width:96px; height:104px; flex-shrink:0; }
.hc-desc { font-size:.92rem; color:var(--text-dim); }
@media (prefers-reduced-motion:reduce) { .hc-chev::before { transition:none; } }

/* --- nhân vật minh hoạ (raster, thay hi-res sau) --- */
.mitsu-char { display:inline-block; width:120px; aspect-ratio:3/4; border-radius:var(--radius); background:var(--surface); border:1px solid var(--line-soft); object-fit:contain; }
.mitsu-char--ph { display:flex; align-items:center; justify-content:center; color:var(--accent); font-family:var(--jp); font-size:1.6rem; }
.mitsu-char--sm { width:72px; }
.mitsu-char--lg { width:200px; }

/* --- logo visibility utilities --- */
.logo-dark-only { display: none !important; }
.logo-light-only { display: inline-block !important; }

:root[data-theme="dark"] .logo-dark-only { display: inline-block !important; }
:root[data-theme="dark"] .logo-light-only { display: none !important; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-dark-only { display: inline-block !important; }
  :root:not([data-theme="light"]) .logo-light-only { display: none !important; }
}

/* --- Honeycomb Header Cart Button --- */
.header-cart-btn {
  display: inline-flex;
  position: relative;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  background: none;
  border: none;
  padding: 0;
}
.header-cart-btn:hover {
  transform: scale(1.05);
}
.hc-cart-icon {
  position: relative;
  width: 100%;
  height: 100%;
  color: var(--surface-2);
  transition: color 0.2s ease;
}
.header-cart-btn:hover .hc-cart-icon {
  color: var(--accent);
}
.header-cart-btn.has-items .hc-cart-icon {
  color: var(--accent);
}
.hc-shape {
  width: 100%;
  height: 100%;
  stroke: var(--line);
  stroke-width: 4px;
}
.cart-svg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  color: var(--text);
  transition: color 0.2s ease;
}
.header-cart-btn:hover .cart-svg {
  color: var(--bg);
}
.header-cart-btn.has-items .cart-svg {
  color: var(--bg);
}
.header-cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--seal);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 600;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  box-shadow: 0 2px 6px rgba(184, 58, 46, 0.4);
  transform: scale(0);
  transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.header-cart-btn.has-items .header-cart-badge {
  transform: scale(1);
}

/* --- Inline Bee Icon Tagline --- */
.bee-i-svg {
  width: 0.9em;
  height: 0.9em;
  display: inline-block;
  vertical-align: middle;
  margin: 0 0.05em;
  fill: var(--accent);
  position: relative;
  top: -0.05em;
}