/* ═══════════════════════════════════════════════════
   HAKKI THEME — v1.0
   Shared design tokens for hakki.in and every Hakki-family PWA
   (spend-na, student-insight, and future ones). Same --ink/--card/
   --teal token pattern as spend-na's styles.css so the family shares
   one visual language. Copy this file as the starting point for the
   next project — see README "Hakki theme" section.
   ═══════════════════════════════════════════════════ */
:root {
  --ff: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
  color-scheme: dark;
  --ink-rgb: 255,255,255;
  --ink:   rgba(var(--ink-rgb),.95);
  --ink2:  rgba(var(--ink-rgb),.85);
  --ink3:  rgba(var(--ink-rgb),.70);
  --mist:  rgba(var(--ink-rgb),.55);
  --ghost: rgba(var(--ink-rgb),.38);
  --fog:   rgba(var(--ink-rgb),.16);
  --paper: rgba(var(--ink-rgb),.06);
  --card:  rgba(var(--ink-rgb),.09);
  --bg:    #0f172a;

  /* brand: warm bird-logo amber as primary accent, spend-na's sky teal as secondary */
  --amber:  #f59e0b;
  --amberD: #d97706;
  --teal:   #38bdf8;
  --tealD:  #0ea5e9;
  --ok:     #34d399;
  --warn:   #fbbf24;
  --err:    #f87171;

  --r: 14px;
  --rL: 20px;
  --sh:  0 2px 8px rgba(0,0,0,.30);
  --shM: 0 8px 32px rgba(0,0,0,.40);
  --blur: blur(24px) saturate(1.8);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
}

[data-theme="light"] {
  color-scheme: light;
  --ink-rgb: 15,23,42;
  --bg:    #f3f4f6;
  --paper: #f3f4f6;
  --card:  #ffffff;
  --fog:   #e3e6eb;
  --sh:  0 1px 3px rgba(15,23,42,.10);
  --shM: 0 4px 16px rgba(15,23,42,.12);
  --amber:  #b45309;
  --amberD: #92400e;
  --teal:   #0284c7;
  --tealD:  #075985;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--ff);
  background: var(--bg);
  color: var(--ink);
  min-height: 100dvh;
  padding-top: var(--safe-t);
  padding-bottom: var(--safe-b);
  transition: background .25s, color .25s;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px 60px; }

/* ── SPA screens (router.js toggles .active) ── */
.screen { display: none; }
.screen.active { display: block; animation: screenIn .25s ease; }
@keyframes screenIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ── header / nav ── */
header.site {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; gap: 12px;
  background: rgba(var(--ink-rgb),.06);
  backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--fog);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
nav.links { display: flex; gap: 4px; flex-wrap: wrap; }
nav.links a {
  padding: 8px 14px; border-radius: 999px; font-size: 14px; font-weight: 600;
  color: var(--ink3);
}
nav.links a.active, nav.links a:hover { background: var(--card); color: var(--ink); }
#themeToggle {
  border: 1px solid var(--fog); background: var(--card); color: var(--ink);
  width: 36px; height: 36px; border-radius: 50%; font-size: 16px; cursor: pointer;
}

/* ── hero ── */
.hero { text-align: center; padding: 56px 20px 36px; }
.hero img.avatar {
  width: 108px; height: 108px; border-radius: 28px; margin: 0 auto 18px;
  box-shadow: var(--shM);
}
.hero h1 { font-size: 30px; margin: 0 0 6px; }
.hero p.tag { color: var(--ink3); max-width: 480px; margin: 0 auto; line-height: 1.5; }
.hero .cta-row { display: flex; gap: 10px; justify-content: center; margin-top: 22px; flex-wrap: wrap; }

/* ── buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: 999px; font-weight: 600; font-size: 14px;
  border: 1px solid var(--fog); cursor: pointer;
}
.btn.primary { background: linear-gradient(135deg, var(--amber), var(--amberD)); color: #1a1206; border: none; }
.btn.ghost { background: var(--card); color: var(--ink); }

/* ── cards / grid ── */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin-top: 28px; }
.card {
  background: var(--card); border: 1px solid var(--fog); border-radius: var(--rL);
  padding: 22px; box-shadow: var(--sh); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
}
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { color: var(--ink3); font-size: 14px; line-height: 1.5; margin: 0 0 14px; }

/* project store card */
.proj-card { display: flex; flex-direction: column; gap: 14px; }
.proj-card .top { display: flex; gap: 14px; align-items: center; }
.proj-card .top img { width: 56px; height: 56px; border-radius: 14px; box-shadow: var(--sh); }
.proj-card .qr { display: flex; align-items: center; gap: 12px; border-top: 1px solid var(--fog); padding-top: 14px; }
.proj-card .qr img { width: 72px; height: 72px; border-radius: 8px; background: #fff; padding: 4px; }
.proj-card .qr .url { font-size: 12px; color: var(--ink3); word-break: break-all; }
.proj-card .actions { display: flex; gap: 8px; }
.badge {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .04em;
  padding: 3px 9px; border-radius: 999px; background: rgba(56,189,248,.16); color: var(--teal);
  text-transform: uppercase;
}

/* ── section heading ── */
.section h2 { font-size: 22px; margin: 44px 0 4px; }
.section p.lede { color: var(--ink3); margin: 0 0 8px; }

/* ── blog list ── */
.post { padding: 18px 0; border-bottom: 1px solid var(--fog); }
.post h3 { margin: 0 0 6px; font-size: 17px; }
.post .meta { font-size: 12px; color: var(--ghost); margin-bottom: 8px; }
.post .excerpt { color: var(--ink3); font-size: 14px; line-height: 1.6; }
.post a.readmore { color: var(--teal); font-size: 13px; font-weight: 600; }

/* ── forms ── */
form.contact { display: flex; flex-direction: column; gap: 12px; max-width: 480px; }
form.contact input, form.contact textarea {
  background: var(--paper); border: 1px solid var(--fog); border-radius: var(--r);
  padding: 12px 14px; color: var(--ink); font-family: var(--ff); font-size: 14px;
}
form.contact textarea { min-height: 120px; resize: vertical; }

/* ── footer ── */
footer.site { text-align: center; padding: 40px 20px; color: var(--ghost); font-size: 13px; }
footer.site a { color: var(--teal); }

/* env ribbon (env-config.js injects this) */
.env-ribbon {
  position: fixed; top: 0; right: 0; z-index: 9999;
  background: #dc2626; color: #fff; font: 700 10px/1 var(--ff);
  padding: 3px 8px; letter-spacing: .06em; border-bottom-left-radius: 8px;
}

.state { text-align: center; color: var(--ghost); padding: 30px 0; font-size: 14px; }

.navToggle { display: none; }
.storeFab { display: none; }
@media (max-width: 600px) {
  .hero h1 { font-size: 24px; }
  .storeFab {
    display: flex; align-items: center; gap: 8px; position: fixed; right: 16px; bottom: 20px; z-index: 140;
    background: var(--amber); color: #1a1204; font-weight: 800; font-size: 14px;
    padding: 12px 18px; border-radius: 999px; box-shadow: 0 10px 28px rgba(0,0,0,.35);
    text-decoration: none;
  }
  .storeFab.hide-on-store { display: none; }
  .navToggle {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 0 12px; height: 36px; border-radius: 10px; border: 1px solid var(--fog);
    background: var(--card); color: var(--ink); font-size: 13px; font-weight: 700; margin-left: 8px;
  }
  nav.links {
    position: fixed; top: 60px; left: 12px; right: 12px; z-index: 150;
    flex-direction: column; gap: 2px; background: var(--bg); border: 1px solid var(--fog);
    border-radius: var(--rL); padding: 8px; box-shadow: 0 10px 30px rgba(0,0,0,.25);
    display: none;
  }
  nav.links.open { display: flex; }
  nav.links a { padding: 12px 14px; }
}

/* ── hero stat chips (inline, not a separate boxed bar) ── */
.hero .stat-chips { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }
.hero .stat-chips div { text-align: center; }
.hero .stat-chips b { display: block; font-size: 20px; color: var(--teal); }
.hero .stat-chips span { font-size: 11px; color: var(--ghost); text-transform: uppercase; letter-spacing: .04em; }

/* ── fact cards (reuses .card/.grid look, denser) ── */
.fact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-top: 20px; }
.fact-grid .card { padding: 16px 18px; }
.fact-grid .card .k { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--ghost); font-weight: 700; margin-bottom: 4px; }
.fact-grid .card .v { font-size: 14px; color: var(--ink2); line-height: 1.4; }
.fact-grid .card .v a { color: var(--teal); }

/* ── skill chip cloud (weighted by opacity, not progress bars) ── */
.chip-cloud { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.chip-cloud .chip {
  padding: 9px 16px; border-radius: 999px; font-weight: 700; font-size: 13px;
  background: var(--card); border: 1px solid var(--fog); color: var(--ink2);
}

/* ── role strip (horizontal-scroll history, not a vertical timeline) ── */
.role-strip { display: flex; gap: 12px; overflow-x: auto; padding: 18px 2px 10px; margin: 0 -2px; scrollbar-width: thin; }
.role-strip .role {
  flex: 0 0 auto; min-width: 168px; background: var(--card); border: 1px solid var(--fog);
  border-radius: var(--r); padding: 14px 16px;
}
.role-strip .role.current { border-color: var(--teal); }
.role-strip .role h3 { margin: 0 0 2px; font-size: 14px; }
.role-strip .role .co { font-size: 12px; color: var(--teal); font-weight: 600; }
.role-strip .role .yrs { font-size: 11px; color: var(--ghost); margin-top: 6px; }

/* ── expertise cards ── */
.expertise-grid { display: flex; gap: 12px; overflow-x: auto; padding: 18px 2px 10px; margin: 0 -2px; scrollbar-width: thin; }
.xcard {
  flex: 0 0 auto; width: 190px; background: var(--card); border: 1px solid var(--fog);
  border-radius: var(--rL); padding: 20px 18px; transition: transform .15s ease, border-color .15s ease;
}
.xcard:hover { transform: translateY(-3px); border-color: var(--teal); }
.xcard .xicon { font-size: 26px; margin-bottom: 10px; }
.xcard h3 { margin: 0 0 6px; font-size: 15px; }
.xcard p { margin: 0; font-size: 13px; color: var(--ink3); line-height: 1.55; }

/* ── speaking / seminar photo gallery — horizontal scroll, same rhythm ── */
.speaking-grid {
  display: flex; gap: 12px; overflow-x: auto; padding: 18px 2px 10px; margin: 0 -2px; scrollbar-width: thin;
}
.speaking-grid img {
  flex: 0 0 auto; width: 190px; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--r);
  border: 1px solid var(--fog); cursor: zoom-in; transition: transform .2s ease, box-shadow .2s ease;
}
.speaking-grid img:hover { transform: scale(1.03); box-shadow: 0 8px 24px rgba(0,0,0,.18); }
.lightbox-overlay {
  position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,.85);
  display: flex; align-items: center; justify-content: center; padding: 24px;
}
.lightbox-overlay img { max-width: 100%; max-height: 90vh; border-radius: var(--r); }
.lightbox-overlay .lclose {
  position: absolute; top: 18px; right: 18px; width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.3); font-size: 16px; cursor: pointer;
}
.mini-tags { display: flex; gap: 6px; flex-wrap: wrap; margin: -4px 0 14px; }
.mini-tags span { font-size: 10.5px; font-weight: 700; padding: 3px 9px; border-radius: 999px; background: var(--paper); color: var(--ghost); border: 1px solid var(--fog); }

/* ── readme modal ── */
.readme-overlay {
  position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,.55);
  display: flex; align-items: flex-end; justify-content: center;
  backdrop-filter: blur(4px);
}
.readme-panel {
  background: var(--bg); width: 100%; max-width: 720px; max-height: 84vh;
  border-radius: 20px 20px 0 0; overflow-y: auto; padding: 22px 22px 40px;
  border: 1px solid var(--fog); border-bottom: none;
}
@media (min-width: 700px) {
  .readme-overlay { align-items: center; }
  .readme-panel { border-radius: var(--rL); border-bottom: 1px solid var(--fog); max-height: 80vh; }
}
.readme-panel .rhead { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; position: sticky; top: -22px; background: var(--bg); padding: 6px 0; }
.readme-panel .rhead h3 { margin: 0; font-size: 16px; display: flex; align-items: center; gap: 10px; }
.readme-panel .rhead img { width: 28px; height: 28px; border-radius: 8px; }
.readme-panel .rclose { border: 1px solid var(--fog); background: var(--card); color: var(--ink); width: 30px; height: 30px; border-radius: 50%; cursor: pointer; font-size: 15px; }
.readme-body h1, .readme-body h2, .readme-body h3 { margin: 18px 0 8px; line-height: 1.3; }
.readme-body h1 { font-size: 19px; } .readme-body h2 { font-size: 16px; color: var(--teal); } .readme-body h3 { font-size: 14px; }
.readme-body p { color: var(--ink2); font-size: 14px; line-height: 1.65; margin: 0 0 12px; }
.readme-body ul, .readme-body ol { color: var(--ink2); font-size: 14px; line-height: 1.6; margin: 0 0 12px; padding-left: 20px; }
.readme-body code { background: var(--paper); padding: 2px 6px; border-radius: 5px; font-size: 12.5px; }
.readme-body pre { background: var(--paper); padding: 12px 14px; border-radius: var(--r); overflow-x: auto; margin: 0 0 14px; }
.readme-body pre code { background: none; padding: 0; }
.readme-body a { color: var(--teal); text-decoration: underline; }
.readme-body img { border-radius: var(--r); margin: 8px 0; }
.readme-body hr { border: none; border-top: 1px solid var(--fog); margin: 18px 0; }
.readme-loading, .readme-error { text-align: center; color: var(--ghost); padding: 30px 0; font-size: 14px; }
footer.site .socials { display: flex; gap: 10px; justify-content: center; margin-top: 10px; }
footer.site .socials a {
  width: 32px; height: 32px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--fog); background: var(--card); font-size: 14px;
}