/* Sightcraft Analytics — shared styles
   Editorial report aesthetic: cream surfaces, hairline rules, system sans. */

:root {
  color-scheme: light;
  --bg: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --accent: #2a78d6;
  --good: #006300;
  --bad: #d03b3b;
  /* categorical series slots (fixed order — never cycled) */
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100;
  --s5: #e87ba4; --s6: #008300; --s7: #4a3aa7; --s8: #e34948;
  /* sequential ramp for heatmaps (low → high) */
  --heat-1: #cde2fb; --heat-2: #9ec5f4; --heat-3: #6da7ec;
  --heat-4: #3987e5; --heat-5: #256abf; --heat-6: #184f95;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0d0d0d;
    --surface: #1a1a19;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --accent: #3987e5;
    --good: #0ca30c;
    --bad: #e66767;
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
    --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
    /* on dark, high magnitude = lighter (attention) */
    --heat-1: #184f95; --heat-2: #1c5cab; --heat-3: #2a78d6;
    --heat-4: #3987e5; --heat-5: #6da7ec; --heat-6: #9ec5f4;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ------------------------------------------------------------------ nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; border-bottom: 1px solid var(--grid);
}
.nav .brand {
  font-weight: 700; font-size: 1.05rem; color: var(--ink);
  letter-spacing: .02em;
}
.nav .brand:hover { text-decoration: none; }
.nav .brand span { color: var(--accent); }
.nav nav { display: flex; gap: 22px; flex-wrap: wrap; }
.nav nav a { color: var(--ink-2); font-size: .92rem; }
.nav nav a:hover { color: var(--ink); text-decoration: none; }
.nav nav a.active { color: var(--ink); font-weight: 600; }

/* ------------------------------------------------------- report header */
.kicker {
  letter-spacing: .18em; text-transform: uppercase;
  font-size: .72rem; font-weight: 600; color: var(--ink-2);
}
.report-title {
  font-size: 2.1rem; font-weight: 700; line-height: 1.15;
  margin: 2px 0 4px;
}
.report-sub { color: var(--ink-2); font-size: .95rem; }
.rule { border-top: 3px solid var(--ink); margin: 12px 0 3px; }
.rule-thin { border-top: 1px solid var(--baseline); margin: 0 0 10px; }

/* ------------------------------------------------------------------ hero */
.hero { padding: 64px 0 36px; }
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  font-weight: 700; line-height: 1.12; margin: 10px 0 14px;
  max-width: 720px;
}
.hero p.lede { font-size: 1.15rem; color: var(--ink-2); max-width: 620px; margin: 0 0 26px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 11px 20px; border-radius: 8px;
  font-weight: 600; font-size: .95rem; border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { text-decoration: none; opacity: .85; }
.btn-ghost { border-color: var(--baseline); color: var(--ink); background: transparent; }
.btn-ghost:hover { text-decoration: none; background: var(--surface); }

/* -------------------------------------------------------------- sections */
section { padding: 40px 0; }
.section-head { margin-bottom: 22px; }
.section-head h2 { font-size: 1.5rem; margin: 4px 0 6px; }
.section-head p { color: var(--ink-2); margin: 0; max-width: 640px; }

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
}
.card h3 { margin: 0 0 8px; font-size: 1.05rem; border: 0; padding: 0; }
.card p { margin: 0; color: var(--ink-2); font-size: .92rem; }
.card .tag {
  display: inline-block; font-size: .7rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
  margin-bottom: 10px;
}

a.card-link { color: inherit; display: block; }
a.card-link:hover { text-decoration: none; border-color: var(--accent); }
a.card-link .go { color: var(--accent); font-size: .88rem; font-weight: 600; margin-top: 12px; display: inline-block; }

/* --------------------------------------------------------------- charts */
.chart-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px 18px;
}
.chart-card h3 { margin: 0; font-size: 1rem; }
.chart-card .chart-sub { color: var(--muted); font-size: .8rem; margin: 2px 0 10px; }
.chart-card svg { display: block; width: 100%; height: auto; }

.legend { display: flex; gap: 16px; flex-wrap: wrap; margin: 4px 0 8px; }
.legend .key { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: var(--ink-2); }
.legend .swatch { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }

/* stat tiles */
.tile {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px 16px;
}
.tile .label { font-size: .8rem; color: var(--ink-2); }
.tile .value { font-size: 1.7rem; font-weight: 600; line-height: 1.2; margin: 2px 0; }
.tile .delta { font-size: .82rem; font-weight: 600; }
.tile .delta small { color: var(--muted); font-weight: 400; }
.tile .delta.up { color: var(--good); }
.tile .delta.down { color: var(--bad); }
.tile svg { display: block; margin-top: 8px; }

/* shared tooltip */
#viz-tip {
  position: fixed; pointer-events: none; z-index: 50;
  background: var(--surface); border: 1px solid var(--baseline);
  border-radius: 8px; padding: 8px 10px; font-size: .8rem;
  box-shadow: 0 4px 14px rgba(0,0,0,.12);
  display: none; min-width: 120px;
}
#viz-tip .tip-title { font-weight: 600; margin-bottom: 4px; }
#viz-tip .tip-row { display: flex; align-items: center; gap: 6px; justify-content: space-between; }
#viz-tip .tip-row .k { display: flex; align-items: center; gap: 6px; color: var(--ink-2); }
#viz-tip .tip-row .v { font-weight: 600; font-variant-numeric: tabular-nums; }
#viz-tip .swatch { width: 8px; height: 8px; border-radius: 2px; display: inline-block; }

/* filters */
.filters { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 14px 0 20px; }
.filters .flabel { font-size: .8rem; color: var(--muted); margin-right: 4px; }
.chip {
  border: 1px solid var(--baseline); background: transparent; color: var(--ink-2);
  border-radius: 999px; padding: 5px 14px; font-size: .82rem; cursor: pointer;
  font-family: inherit;
}
.chip:hover { background: var(--surface); }
.chip.active { background: var(--ink); color: var(--bg); border-color: var(--ink); font-weight: 600; }

/* tables */
.data-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.data-table th {
  text-align: left; font-size: .72rem; text-transform: uppercase;
  letter-spacing: .1em; color: var(--muted); font-weight: 600;
  border-bottom: 1px solid var(--baseline); padding: 8px 10px;
}
.data-table td { padding: 8px 10px; border-bottom: 1px solid var(--grid); }
.data-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.data-table th.num { text-align: right; }
.data-table .pos { color: var(--good); font-weight: 600; }
.data-table .neg { color: var(--bad); font-weight: 600; }
.table-scroll { overflow-x: auto; }

/* steps (how it works) */
.step { display: flex; gap: 14px; }
.step .n {
  flex: 0 0 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--baseline); display: flex; align-items: center;
  justify-content: center; font-weight: 700; font-size: .95rem;
}
.step h3 { margin: 4px 0 4px; font-size: 1rem; }
.step p { margin: 0; color: var(--ink-2); font-size: .9rem; }

/* ---------------------------------------------------------------- chat */
.chat-shell {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; display: flex; flex-direction: column;
  height: 560px; max-width: 780px;
}
.chat-log { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.msg { max-width: 85%; padding: 10px 14px; border-radius: 12px; font-size: .93rem; }
.msg.user { align-self: flex-end; background: var(--ink); color: var(--bg); border-bottom-right-radius: 4px; }
.msg.bot { align-self: flex-start; background: var(--bg); border: 1px solid var(--grid); border-bottom-left-radius: 4px; }
.msg.bot .msg-chart { margin-top: 10px; }
.msg.bot table { margin-top: 8px; }
.chat-suggest { display: flex; gap: 8px; flex-wrap: wrap; padding: 0 20px 12px; }
.chat-input-row { display: flex; gap: 10px; padding: 14px 20px; border-top: 1px solid var(--grid); }
.chat-input-row input {
  flex: 1; border: 1px solid var(--baseline); border-radius: 8px;
  padding: 10px 14px; font-size: .93rem; background: var(--bg); color: var(--ink);
  font-family: inherit;
}
.chat-input-row input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.typing { color: var(--muted); font-style: italic; }

/* ------------------------------------------------------- weekly report */
.exec-summary {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 4px solid var(--accent); border-radius: 10px;
  padding: 22px 26px; margin: 20px 0;
}
.exec-summary p { margin: 0 0 12px; font-size: 1.02rem; line-height: 1.65; }
.exec-summary p:last-child { margin-bottom: 0; }
.exec-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 16px; }
@media (max-width: 700px) { .exec-cols { grid-template-columns: 1fr; } }
.exec-cols h4 {
  margin: 0 0 8px; font-size: .72rem; text-transform: uppercase;
  letter-spacing: .12em; color: var(--muted);
}
.exec-cols ul { margin: 0; padding-left: 18px; }
.exec-cols li { margin-bottom: 6px; font-size: .92rem; color: var(--ink-2); }
.exec-cols li strong { color: var(--ink); }

.report-section { margin: 34px 0; }
.report-section .sec-head {
  display: flex; align-items: baseline; gap: 12px;
  border-bottom: 2px solid var(--ink); padding-bottom: 6px; margin-bottom: 4px;
}
.report-section .sec-head .sec-num {
  font-size: .8rem; font-weight: 700; color: var(--muted);
}
.report-section .sec-head h2 { margin: 0; font-size: 1.25rem; }
.report-section .sec-lede { color: var(--ink-2); font-size: .95rem; margin: 10px 0 16px; max-width: 760px; }
.report-section .sec-lede strong { color: var(--ink); }

details.drill {
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--surface); margin-top: 12px;
}
details.drill > summary {
  cursor: pointer; list-style: none; padding: 13px 18px;
  font-size: .9rem; font-weight: 600; color: var(--accent);
  display: flex; align-items: center; gap: 8px;
}
details.drill > summary::-webkit-details-marker { display: none; }
details.drill > summary::before { content: "▸"; transition: transform .15s; }
details.drill[open] > summary::before { transform: rotate(90deg); }
details.drill > summary .hint { color: var(--muted); font-weight: 400; margin-left: auto; font-size: .8rem; }
details.drill .drill-body { padding: 4px 18px 18px; border-top: 1px solid var(--grid); }
details.drill .drill-body .chart-sub { color: var(--muted); font-size: .8rem; margin: 10px 0; }

.actions-list { counter-reset: act; list-style: none; padding: 0; margin: 0; }
.actions-list li {
  counter-increment: act; display: flex; gap: 14px;
  padding: 14px 0; border-bottom: 1px solid var(--grid);
}
.actions-list li:last-child { border-bottom: 0; }
.actions-list li::before {
  content: counter(act);
  flex: 0 0 28px; height: 28px; border-radius: 50%;
  background: var(--ink); color: var(--bg); font-weight: 700; font-size: .85rem;
  display: flex; align-items: center; justify-content: center;
}
.actions-list .act-body { font-size: .93rem; color: var(--ink-2); }
.actions-list .act-body strong { color: var(--ink); display: block; margin-bottom: 2px; }

/* -------------------------------------------------------------- footer */
footer {
  border-top: 1px solid var(--grid); margin-top: 40px;
  padding: 26px 0 40px; color: var(--muted); font-size: .85rem;
}
footer .foot-grid { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }