/* DeepDive UI Kit · v2 — editorial long-read components
 * All components reference --accent only. Set theme on <html> or <body>:
 *   <body data-theme="amber"> · red · signal · mint
 * Or inject inline <style id="theme-vars"> for runtime switching.
 */
@import url("./colors_and_type.css");

/* ============ PAGE CHROME ============ */
html, body { margin: 0; padding: 0; }
body.dd-body {
  background: var(--bg);
  color: var(--fg);
  overflow-x: hidden;
}
body.dd-body::before {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(var(--accent-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--accent-soft) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.5;
}
body.dd-body::after {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 1;
  opacity: 0.45; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.96 0 0 0 0 0.9 0 0 0 0 0.8 0 0 0 0.08 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
/* Light mode — noise inverts to ink-on-paper grain via multiply */
body.dd-body[data-mode="light"]::after,
[data-mode="light"] body.dd-body::after {
  opacity: 0.35; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.18 0 0 0 0 0.16 0 0 0 0 0.12 0 0 0 0.10 0'/%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.dd-wrap { max-width: var(--w-wrap); margin: 0 auto; padding: 0 5vw; position: relative; z-index: 2; }
@media (min-width: 1024px) { .dd-wrap { padding: 0 48px; } }

/* ============ MOTION ============ */
/* Hero stagger — only entry animation on page; spent once. */
@keyframes dd-fadeup { from{opacity:0;transform:translateY(12px)} to{opacity:1;transform:translateY(0)} }
.dd-anim > * { animation: dd-fadeup .7s var(--ease-out) both; }
.dd-anim > *:nth-child(1) { animation-delay: 0.05s; }
.dd-anim > *:nth-child(2) { animation-delay: 0.15s; }
.dd-anim > *:nth-child(3) { animation-delay: 0.25s; }
.dd-anim > *:nth-child(4) { animation-delay: 0.35s; }

/* ============ TOP STRIP ============ */
.dd-strip {
  border-bottom: var(--border);
  padding: 14px 0;
  font-family: var(--mono); font-size: 11px; letter-spacing: var(--track-mono); text-transform: uppercase;
  color: var(--fg-dim);
  display: grid; grid-template-columns: 1fr; gap: 8px; align-items: center;
}
@media (min-width: 1024px) { .dd-strip { grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 24px; } }
.dd-strip .right { text-align: right; }

/* ============ HERO ============ */
.dd-hero { padding: 40px 0 48px; border-bottom: var(--border); }
/* ≥1024px: hero indents to 168px to align with .dd-section .body gutter */
@media (min-width: 1024px) { .dd-hero { padding: 112px 0 96px 168px; } }
/* ≥1440px: extra breathing room as viewport widens */
@media (min-width: 1440px) { .dd-hero { padding: 128px 0 112px 200px; } }
.dd-hero .casefile {
  font-family: var(--mono); font-size: 10px; letter-spacing: var(--track-eyebrow); text-transform: uppercase;
  color: var(--accent); display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 32px;
}
@media (min-width:1024px) { .dd-hero .casefile { font-size: 11px; gap: 28px; margin-bottom: 40px; } }
.dd-hero .casefile .sep { color: var(--fg-mute); }
.dd-hero h1 {
  margin: 0 0 24px;
  font-family: var(--display);
  font-size: var(--t-display); font-weight: 300; line-height: var(--leading-tight); letter-spacing: var(--track-display);
}
.dd-hero h1 em { color: var(--accent); font-style: normal; font-weight: 400; }
.dd-hero .dek {
  max-width: 720px;
  font-family: var(--serif);
  font-size: 18px; line-height: 1.6; color: var(--fg-dim); font-weight: 300;
  border-left: 1px solid var(--accent); padding-left: 16px; margin-top: 16px;
}
.dd-hero .dek strong { color: var(--fg); font-weight: 400; }
@media (min-width:1024px){ .dd-hero .dek { font-size: 20px; padding-left: 20px; } }

/* ============ SECTION (eyebrow rail + headline + indented body) ============ */
.dd-section { padding: 72px 0; border-bottom: var(--border); }
@media (min-width:1024px) { .dd-section { padding: 112px 0; } }
.dd-section .head { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width:1024px) { .dd-section .head { grid-template-columns: 120px 1fr; gap: 48px; } }
.dd-section .eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent);
  align-self: start; padding-top: 10px; border-top: 1px solid var(--accent);
}
.dd-section h2 {
  margin: 0;
  font-family: var(--display); font-weight: 300; font-size: clamp(28px, 5vw, 52px); line-height: 1.05; letter-spacing: -0.01em;
}
.dd-section h2 em { color: var(--accent); font-style: normal; font-weight: 400; }
.dd-section .body { margin-top: 28px; }
@media (min-width:1024px) { .dd-section .body { margin-left: 168px; max-width: 720px; } }
.dd-section .body p { font-family: var(--serif); font-size: 17px; line-height: 1.75; color: var(--fg); font-weight: 400; margin: 0 0 18px; }
.dd-section .body p em { color: var(--accent); font-style: normal; font-weight: 400; }
.dd-section .body p strong { color: var(--fg); font-weight: 500; }

/* ============ STAT GRID ============ */
.dd-stats {
  display: grid; grid-template-columns: repeat(2,1fr); gap: 1px;
  background: var(--line); border: var(--border); margin: 32px 0;
}
@media (min-width:1024px) { .dd-stats { grid-template-columns: repeat(4,1fr); margin: 48px 0; } }
.dd-stats .tile { background: var(--bg); padding: 20px; }
@media (min-width:1024px) { .dd-stats .tile { padding: 28px; } }
.dd-stats .tile .lbl { font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--fg-mute); margin-bottom: 12px; }
.dd-stats .tile .num { font-family: var(--display); font-size: 44px; font-weight: 400; line-height: 1; color: var(--accent); margin-bottom: 8px; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
.dd-stats .tile .num.fg { color: var(--fg); }
.dd-stats .tile .num .u { font-size: 18px; color: var(--fg-mute); }
.dd-stats .tile .cap { font-family: var(--mono); font-size: 10px; color: var(--fg-dim); letter-spacing: 0.06em; }

/* ============ CALLOUT (signature) ============ */
.dd-callout {
  background: var(--accent-soft); border-left: 2px solid var(--accent);
  padding: 18px 22px; margin: 24px 0;
}
.dd-callout .eb { font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; }
.dd-callout p { margin: 0; font-family: var(--serif); font-weight: 400; font-size: 16px; line-height: 1.6; color: var(--fg); }
.dd-callout p em { color: var(--accent); font-style: normal; font-weight: 500; }

/* ============ LEADERBOARD ============ */
.dd-board { background: var(--bg-2); border: var(--border); padding: 24px; margin: 32px 0; }
.dd-board .head {
  display: flex; justify-content: space-between; margin-bottom: 18px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--fg-dim);
}
.dd-board .head .num { color: var(--accent); }
.dd-board .row {
  display: grid; grid-template-columns: 160px 1fr 80px; gap: 14px; align-items: center;
  font-family: var(--mono); font-size: 11px; margin-bottom: 10px;
}
.dd-board .row:last-child { margin-bottom: 0; }
.dd-board .row .name { color: var(--fg); }
.dd-board .row .name.accent { color: var(--accent); }
.dd-board .row .name.mute   { color: var(--fg-mute); }
.dd-board .bar { position: relative; height: 6px; background: var(--line); overflow: hidden; }
.dd-board .bar i { position: absolute; top: 0; left: 0; height: 100%; background: var(--accent); font-style: normal; }
.dd-board .bar i.muted { background: var(--fg-mute); }
.dd-board .bar i.ghost { background: var(--accent); opacity: 0.4; }
.dd-board .row .amt { text-align: right; color: var(--fg-dim); font-variant-numeric: tabular-nums; }
.dd-board .row .amt.accent { color: var(--accent); }

/* ============ PULLQUOTE ============ */
.dd-pull {
  position: relative;
  padding: 32px 16px 28px 48px; margin: 40px 0;
  max-width: var(--w-prose);
}
.dd-pull::before {
  content: '"'; position: absolute; top: -8px; left: -12px;
  font-family: var(--display); font-size: 6rem; line-height: 0.8;
  color: var(--accent); opacity: 0.25;
}
.dd-pull p {
  margin: 0 0 14px; font-family: var(--display); font-weight: 300;
  font-size: clamp(20px, 4vw, 38px); line-height: 1.2; letter-spacing: -0.01em;
  color: var(--fg);
  font-style: normal;        /* CJK pullquotes upright by default */
}
.dd-pull p:lang(en) { font-style: italic; }   /* Latin only — real italics */
.dd-pull p em { color: var(--accent); font-style: normal; font-weight: 400; }
/* Cite line — the ONE place real italics are allowed (attribution) */
.dd-pull cite { font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--fg-mute); font-style: normal; }
.dd-pull cite a { color: inherit; text-decoration: underline; text-decoration-style: dotted; text-underline-offset: 3px; text-decoration-color: var(--accent-soft); transition: color var(--d-fast); }
.dd-pull cite a:hover { color: var(--accent); }

/* ============ PROJECT CARD ============ */
.dd-project {
  background: var(--bg-2); border: var(--border); padding: 28px; margin: 24px 0;
  display: grid; grid-template-columns: 1fr; gap: 18px;
}
@media (min-width:1024px) { .dd-project { grid-template-columns: 200px 1fr; gap: 36px; padding: 40px; } }
.dd-project .rail { display: flex; flex-direction: column; gap: 12px; }
.dd-project .code { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.dd-project .date { font-family: var(--mono); font-size: 10px; color: var(--fg-mute); letter-spacing: 0.1em; }
.dd-project .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.dd-project .tag { display: inline-block; border: 1px solid var(--line-bright); padding: 2px 8px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-dim); }
.dd-project h3 { margin: 0 0 14px; font-family: var(--display); font-weight: 400; font-size: 26px; line-height: 1.2; color: var(--fg); letter-spacing: -0.005em; }
.dd-project p { margin: 0 0 14px; font-family: var(--serif); font-weight: 400; font-size: 16px; line-height: 1.65; color: var(--fg-dim); }
.dd-project p em { color: var(--accent); font-style: normal; font-weight: 500; }

/* ============ SERIES BAND ============ */
.dd-series {
  display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--line); border: 1px solid var(--accent); margin: 48px 0 0;
}
@media (min-width:1024px) { .dd-series { grid-template-columns: repeat(3,1fr); } }
.dd-series .cell { padding: 24px; background: var(--bg); }
.dd-series .cell.cur  { background: linear-gradient(135deg, var(--accent-soft) 0%, var(--bg) 60%); }
.dd-series .cell .eb { font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.dd-series .cell.next .eb { color: var(--fg-mute); }
.dd-series .cell h4 { margin: 0 0 8px; font-family: var(--display); font-weight: 500; font-size: 22px; color: var(--fg); letter-spacing: -0.005em; }
.dd-series .cell.next h4 { color: var(--fg-mute); }
.dd-series .cell .cap { font-family: var(--mono); font-size: 10px; color: var(--fg-dim); letter-spacing: 0.08em; line-height: 1.5; }

/* ============ SYNTHESIS BOX ============ */
.dd-synthesis {
  position: relative; border: 1px solid var(--accent); padding: 36px 32px 32px; margin: 48px 0;
  background: var(--accent-soft);
}
.dd-synthesis::before {
  content: 'SYNTHESIS / 综合判断'; position: absolute; top: -10px; left: 28px;
  background: var(--bg); padding: 0 12px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: var(--accent);
}
.dd-synthesis h3 { margin: 0 0 14px; font-family: var(--display); font-weight: 400; font-size: 24px; color: var(--fg); letter-spacing: -0.005em; }
.dd-synthesis p  { margin: 0 0 12px; font-family: var(--serif); font-weight: 400; font-size: 16px; line-height: 1.7; color: var(--fg); }
.dd-synthesis p em { color: var(--accent); font-style: normal; font-weight: 500; }

/* ============ ARCHIVE FRAME ============ */
.dd-archive {
  background: var(--bg-paper); padding: 14px; position: relative;
  display: inline-block; max-width: 100%;
}
.dd-archive .ph {
  width: 100%; aspect-ratio: 4/3; background: linear-gradient(135deg, #9a948a, #5a544b);
  filter: contrast(1.02) saturate(0.96);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; color: rgba(26,24,21,0.55); text-transform: uppercase;
}
.dd-archive .cap { margin-top: 8px; font-family: var(--mono); font-size: 10px; color: var(--bg-ink); letter-spacing: 0.08em; text-transform: uppercase; }
.dd-archive .exhibit {
  position: absolute; top: 8px; right: 8px;
  font-family: var(--mono); font-size: 9px; color: var(--accent); border: 1px solid var(--accent);
  padding: 1px 6px; letter-spacing: 0.18em; background: var(--bg);
}

/* ============ CODA ============ */
.dd-coda { padding: 64px 0 80px; text-align: center; }
.dd-coda .lamp { width: 14px; height: 14px; }
.dd-coda .word { font-family: var(--display); font-weight: 300; font-size: 28px; color: var(--fg); margin: 18px 0 8px; letter-spacing: -0.005em; }
.dd-coda .word em { color: var(--accent); font-style: normal; font-weight: 400; }
.dd-coda .meta { font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--fg-mute); }
