:root {
  /* ---- LIGHT (default) ---- */
  --bg:        #f6f5f1;
  --bg-2:      #fbfaf7;
  --panel:     #ffffff;
  --panel-2:   #f2f0e9;
  --line:      #e4e1d8;
  --line-soft: #eeece4;
  --ink:       #1b1813;
  --ink-soft:  #46433c;
  --muted:     #8b877d;
  --faint:     #b1ada2;
  --accent:    #e0381c;
  --accent-dim:#b32f15;
  --accent-rgb:224,56,28;
  --gpts:      #a6a299;
  --good:      #2fa37a;
  --on-accent: #ffffff;
  --h1-2:           #5b554b;
  --card-hover-border: #d6d2c6;
  --card-hover-shadow: rgba(60,50,30,0.35);
  --grain-op:       0.04;
  --stripe:         rgba(0,0,0,0.014);
  --bg-radial1:     rgba(224,56,28,0.07);
  --bg-radial2:     rgba(60,90,180,0.045);
  --gate-card-bg:   var(--panel);
  --gate-shadow:    rgba(60,50,30,0.34);
  --modal-backdrop: rgba(30,26,20,0.34);
  --modal-panel-bg: var(--panel);
  --modal-shadow:   rgba(40,34,24,0.5);
  --modal-close-bg: var(--bg-2);
  --blockquote-bg:  var(--bg-2);
  --code-bg:        var(--bg-2);

  --sidebar-w: 272px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  --display: "Bricolage Grotesque", Georgia, serif;
  --body: "Hanken Grotesk", -apple-system, "PingFang SC", sans-serif;
}

html[data-theme="dark"] {
  --bg:        #0c0d10;
  --bg-2:      #121419;
  --panel:     #16181f;
  --panel-2:   #1b1e27;
  --line:      #262a35;
  --line-soft: #1e222b;
  --ink:       #f3f0e9;
  --ink-soft:  #b7bac4;
  --muted:     #7c8090;
  --faint:     #565b69;
  --accent:    #ff4d2e;
  --accent-dim:#ff8566;
  --accent-rgb:255,77,46;
  --gpts:      #6b7180;
  --on-accent: #160a06;
  --h1-2:           #c9c4ba;
  --card-hover-border: #33384a;
  --card-hover-shadow: rgba(0,0,0,0.8);
  --grain-op:       0.035;
  --stripe:         rgba(255,255,255,0.012);
  --bg-radial1:     rgba(255,77,46,0.10);
  --bg-radial2:     rgba(60,90,180,0.07);
  --gate-card-bg:   linear-gradient(180deg, var(--panel-2), var(--bg-2));
  --gate-shadow:    rgba(0,0,0,0.8);
  --modal-backdrop: rgba(6,7,9,0.66);
  --modal-panel-bg: linear-gradient(180deg, var(--panel-2), var(--bg-2));
  --modal-shadow:   rgba(0,0,0,0.9);
  --modal-close-bg: var(--panel);
  --blockquote-bg:  var(--bg);
  --code-bg:        var(--bg);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(1100px 600px at 80% -10%, var(--bg-radial1), transparent 60%),
    radial-gradient(900px 500px at -5% 10%, var(--bg-radial2), transparent 55%);
  background-attachment: fixed;
  transition: background-color .25s ease, color .25s ease;
}

/* grain overlay */
.grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: var(--grain-op);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============ THEME TOGGLE ============ */
.theme-toggle {
  position: fixed; top: 18px; right: 20px; z-index: 40;
  width: 40px; height: 40px; border-radius: 11px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  background: var(--panel); border: 1px solid var(--line); color: var(--ink-soft);
  font-size: 17px; line-height: 1; transition: all .16s ease;
  box-shadow: 0 8px 22px -12px rgba(0,0,0,0.45);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }

/* ============ PASSWORD GATE ============ */
.gate {
  position: fixed; inset: 0; z-index: 100; display: flex;
  align-items: center; justify-content: center; padding: 24px;
  background:
    radial-gradient(900px 500px at 70% -10%, rgba(var(--accent-rgb),0.10), transparent 60%),
    var(--bg);
}
body:not(.locked) .gate { display: none; }
body.locked #sidebar, body.locked #main, body.locked #modal-root { display: none; }
.gate-card {
  width: min(380px, 100%); background: var(--gate-card-bg); border: 1px solid var(--line);
  border-radius: 18px; padding: 42px 34px; display: flex; flex-direction: column;
  align-items: center; text-align: center; box-shadow: 0 30px 80px -30px var(--gate-shadow);
}
.gate-mark { color: var(--accent); letter-spacing: 5px; font-size: 14px; }
.gate-name { font-family: var(--display); font-weight: 800; font-size: 25px; margin-top: 8px; letter-spacing: 0.02em; }
.gate-sub { font-size: 11px; color: var(--muted); letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 26px; }
.gate-card input {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); font-family: var(--mono); font-size: 14px; color: var(--ink); margin-bottom: 12px;
}
.gate-card input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(var(--accent-rgb),0.16); }
.gate-card button {
  width: 100%; padding: 12px; border: none; border-radius: 10px; background: var(--accent);
  color: var(--on-accent); font-family: var(--body); font-weight: 700; font-size: 14px; cursor: pointer; transition: .15s ease;
}
.gate-card button:hover { background: var(--accent-dim); }
.gate-err { color: var(--accent); font-size: 12.5px; font-family: var(--mono); margin-top: 14px; min-height: 16px; }

/* ============ SIDEBAR ============ */
#sidebar {
  position: fixed; top: 0; left: 0; width: var(--sidebar-w); height: 100vh;
  overflow-y: auto; z-index: 5;
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  border-right: 1px solid var(--line);
  padding: 26px 20px 20px;
  display: flex; flex-direction: column;
}
.brand { display: flex; flex-direction: column; gap: 2px; margin-bottom: 30px; }
.brand-mark { color: var(--accent); font-size: 13px; letter-spacing: 4px; }
.brand-name {
  font-family: var(--display); font-weight: 800; font-size: 21px;
  letter-spacing: 0.02em; line-height: 1.1; margin-top: 4px;
}
.brand-tag { font-size: 11px; color: var(--muted); letter-spacing: 0.18em; text-transform: uppercase; }

.filter-block { margin-bottom: 26px; }
.filter-label {
  font-family: var(--mono); font-size: 10px; color: var(--faint);
  letter-spacing: 0.22em; margin-bottom: 12px;
}
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chip {
  padding: 5px 13px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--panel); color: var(--ink-soft); cursor: pointer;
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  transition: all .18s ease;
}
.chip:hover { border-color: var(--accent-dim); color: var(--ink); transform: translateY(-1px); }
.chip.active {
  background: var(--accent); color: var(--on-accent); border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb),0.15);
}

#date-nav { display: flex; flex-direction: column; gap: 2px; }
#date-nav a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 9px 12px 9px 14px; border-radius: 9px; position: relative; cursor: pointer;
  color: var(--ink-soft); text-decoration: none;
  font-family: var(--mono); font-size: 13px; transition: all .15s ease;
}
#date-nav a::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 2px; height: 0; background: var(--accent); border-radius: 2px; transition: height .18s ease;
}
#date-nav a:hover { background: var(--panel); color: var(--ink); }
#date-nav a:hover::before { height: 60%; }
#date-nav a .cnt {
  color: var(--muted); font-size: 11px; background: var(--bg);
  border: 1px solid var(--line-soft); border-radius: 5px; padding: 1px 7px;
}
.side-foot {
  margin-top: auto; padding-top: 20px; font-size: 10.5px; color: var(--faint);
  letter-spacing: 0.06em; line-height: 1.5;
}

/* ============ MAIN ============ */
#main {
  margin-left: var(--sidebar-w); padding: 56px 56px 120px; max-width: 1080px;
  position: relative; z-index: 2;
}
.topbar { margin-bottom: 18px; }
.eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.3em;
  color: var(--accent); margin-bottom: 14px;
}
.topbar h1 {
  font-family: var(--display); font-weight: 800; font-size: 58px;
  line-height: 0.96; letter-spacing: -0.01em; margin: 0 0 14px;
  background: linear-gradient(180deg, var(--ink), var(--h1-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.subtitle { color: var(--muted); font-size: 15px; margin: 0; }
.subtitle .t-trends { color: var(--accent); font-weight: 600; }
.subtitle .t-gpts { color: var(--ink-soft); font-weight: 600; }

.stat-strip { display: flex; gap: 30px; margin-top: 28px; flex-wrap: wrap; align-items: stretch; }
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat .v { font-family: var(--mono); font-size: 24px; font-weight: 700; color: var(--ink); }
.stat .k { font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: var(--faint); text-transform: uppercase; }
.stat-strip .sep { width: 1px; background: var(--line); }

/* ============ DATE SECTIONS ============ */
.date-section { margin-top: 52px; }
.date-head {
  display: flex; align-items: baseline; gap: 14px;
  position: sticky; top: 0; z-index: 3;
  padding: 14px 0 12px; margin-bottom: 6px;
  background: linear-gradient(180deg, var(--bg) 70%, transparent);
  border-bottom: 1px solid var(--line);
}
.date-head .d {
  font-family: var(--display); font-weight: 600; font-size: 22px; letter-spacing: 0.01em;
}
.date-head .n {
  font-family: var(--mono); font-size: 11px; color: var(--accent);
  border: 1px solid rgba(var(--accent-rgb),0.4); border-radius: 6px; padding: 2px 9px;
}

/* ============ CARD ============ */
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line); border-radius: 16px;
  padding: 22px 24px; margin: 16px 0;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--accent), transparent);
  opacity: 0; transition: opacity .2s ease;
}
.card:hover {
  border-color: var(--card-hover-border); transform: translateY(-2px);
  box-shadow: 0 18px 40px -22px var(--card-hover-shadow);
}
.card:hover::before { opacity: 1; }

.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.kw-wrap { display: flex; align-items: center; gap: 11px; flex-wrap: wrap; }
.kw { font-family: var(--display); font-size: 21px; font-weight: 600; letter-spacing: 0.005em; }
.badge {
  font-family: var(--mono); font-size: 10.5px; font-weight: 700; letter-spacing: 0.08em;
  padding: 3px 8px; border-radius: 5px; color: var(--accent-dim);
  background: rgba(var(--accent-rgb),0.10); border: 1px solid rgba(var(--accent-rgb),0.27);
}
.captured {
  font-family: var(--mono); font-size: 11.5px; color: var(--muted); white-space: nowrap;
  display: flex; align-items: center; gap: 6px;
}
.captured .clock { color: var(--faint); }
.captured b { color: var(--ink-soft); font-weight: 500; }

.metrics { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0 4px; }
.metric {
  display: flex; flex-direction: column; gap: 3px;
  background: var(--bg); border: 1px solid var(--line-soft); border-radius: 9px;
  padding: 8px 13px; min-width: 84px;
}
.metric .mk { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.12em; color: var(--faint); text-transform: uppercase; }
.metric .mv { font-family: var(--mono); font-size: 16px; font-weight: 700; color: var(--ink); font-variant-numeric: tabular-nums; }
.metric.hot .mv { color: var(--accent); }

.chart-wrap { margin: 16px -4px 4px; }
.chart-wrap svg { width: 100%; height: 168px; display: block; }
.chart-empty {
  color: var(--faint); font-family: var(--mono); font-size: 12px; letter-spacing: 0.05em;
  padding: 40px 0; text-align: center; border: 1px dashed var(--line);
  border-radius: 12px; background: repeating-linear-gradient(45deg, transparent, transparent 9px, var(--stripe) 9px, var(--stripe) 18px);
}
.legend { display: flex; gap: 20px; font-family: var(--mono); font-size: 11px; color: var(--muted); margin-top: 8px; }
.legend i { display: inline-block; width: 18px; height: 0; vertical-align: middle; margin-right: 6px; }
.legend .l-trends { border-top: 2.5px solid var(--accent); }
.legend .l-gpts { border-top: 2px dashed var(--gpts); }

.card-foot { display: flex; align-items: center; justify-content: flex-end; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.why-btn {
  font-family: var(--body); font-size: 13px; font-weight: 600; cursor: pointer;
  color: var(--ink); background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 9px; padding: 8px 15px; display: inline-flex; align-items: center; gap: 8px;
  transition: all .16s ease;
}
.why-btn:hover { border-color: var(--accent); color: var(--accent); }
.why-btn .spark { color: var(--accent); }
.why-btn[disabled] { opacity: .45; cursor: default; }
.why-btn[disabled]:hover { border-color: var(--line); color: var(--ink); }
.links { display: flex; align-items: center; gap: 8px; }
.links a {
  font-family: var(--mono); font-size: 11.5px; color: var(--ink-soft); text-decoration: none;
  border: 1px solid var(--line); padding: 7px 12px; border-radius: 9px;
  display: inline-flex; align-items: center; gap: 6px; transition: all .16s ease;
}
.links a:hover { border-color: var(--accent); color: var(--accent); background: var(--panel); }
.links a .arrow { color: var(--faint); }

/* ============ PAGINATION ============ */
.pagination { display: flex; align-items: center; justify-content: center; gap: 6px; margin: 54px 0 0; flex-wrap: wrap; }
.pagination .pg-info { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-right: 12px; }
.pagination button {
  font-family: var(--mono); font-size: 13px; min-width: 38px; height: 38px; padding: 0 12px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink-soft);
  border-radius: 9px; cursor: pointer; transition: all .15s ease;
}
.pagination button:hover:not(:disabled):not(.active) { border-color: var(--accent); color: var(--ink); }
.pagination button.active { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.pagination button:disabled { opacity: .4; cursor: default; }
.pagination .gap { color: var(--faint); padding: 0 2px; }

/* ============ MODAL ============ */
.modal-root { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center; padding: 24px; }
.modal-root[hidden] { display: none; }
.modal-backdrop {
  position: absolute; inset: 0; background: var(--modal-backdrop);
  backdrop-filter: blur(8px) saturate(120%); -webkit-backdrop-filter: blur(8px) saturate(120%);
  animation: fade .2s ease;
}
.modal-panel {
  position: relative; width: min(680px, 100%); max-height: 86vh; overflow: hidden;
  display: flex; flex-direction: column;
  background: var(--modal-panel-bg);
  border: 1px solid var(--line); border-radius: 18px;
  box-shadow: 0 40px 100px -30px var(--modal-shadow);
  animation: pop .22s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(14px) scale(.98); } }
.modal-close {
  position: absolute; top: 16px; right: 16px; z-index: 2;
  width: 32px; height: 32px; border-radius: 9px; cursor: pointer;
  background: var(--modal-close-bg); border: 1px solid var(--line); color: var(--ink-soft);
  font-size: 13px; transition: all .15s ease;
}
.modal-close:hover { border-color: var(--accent); color: var(--accent); }
.modal-head {
  padding: 26px 28px 16px; border-bottom: 1px solid var(--line-soft);
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
}
.modal-kw { font-family: var(--display); font-weight: 700; font-size: 24px; }
.modal-meta { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.modal-body { padding: 22px 28px 30px; overflow-y: auto; }

/* ============ PROSE (rendered markdown) ============ */
.prose { color: var(--ink-soft); font-size: 14.5px; line-height: 1.75; }
.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose p { margin: 0 0 14px; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--accent-dim); text-decoration: none; border-bottom: 1px solid rgba(var(--accent-rgb),0.35); }
.prose a:hover { border-bottom-color: var(--accent-dim); }
.prose ul, .prose ol { margin: 0 0 14px; padding-left: 20px; }
.prose li { margin: 5px 0; }
.prose li::marker { color: var(--accent); }
.prose h1, .prose h2, .prose h3 { font-family: var(--display); color: var(--ink); margin: 20px 0 10px; line-height: 1.25; }
.prose h1 { font-size: 20px; } .prose h2 { font-size: 18px; } .prose h3 { font-size: 16px; }
.prose blockquote {
  margin: 0 0 14px; padding: 10px 16px; border-left: 2px solid var(--accent);
  background: var(--blockquote-bg); border-radius: 0 9px 9px 0; color: var(--muted);
  font-family: var(--mono); font-size: 12.5px;
}
.prose blockquote p { margin: 0; }
.prose code {
  font-family: var(--mono); font-size: 12.5px; background: var(--code-bg);
  border: 1px solid var(--line-soft); border-radius: 5px; padding: 1px 6px; color: var(--accent-dim);
}

.empty-state { color: var(--muted); font-family: var(--mono); padding: 60px 0; }

/* ============ RESPONSIVE ============ */
@media (max-width: 820px) {
  #sidebar {
    position: static; width: auto; height: auto; flex-direction: row;
    flex-wrap: wrap; align-items: center; gap: 16px 24px;
    border-right: none; border-bottom: 1px solid var(--line); padding: 18px 20px;
  }
  .brand { margin-bottom: 0; }
  .filter-block { margin-bottom: 0; }
  .side-foot { display: none; }
  #main { margin-left: 0; padding: 32px 22px 90px; }
  .topbar h1 { font-size: 40px; }
}

/* staggered card reveal */
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }
.card { animation: rise .4s ease backwards; }