/* Partner layout and component rules. The shared Risograph skin loaded
   after this file owns screen colors, typography, and opening composition. */
:root {
  --ink: #0b0b0c;
  --ink-soft: #111113;
  --paper: #f2f2f0;
  --paper-76: color-mix(in srgb, var(--paper) 76%, transparent);
  --paper-58: color-mix(in srgb, var(--paper) 58%, transparent);
  --paper-40: color-mix(in srgb, var(--paper) 40%, transparent);
  --line: color-mix(in srgb, var(--paper) 11%, transparent);
  --line-strong: color-mix(in srgb, var(--paper) 22%, transparent);
  --caption: #e0bd6d;
  --hud: #7ce2a1;
  --warn: #e08d6d;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --gutter: clamp(22px, 5vw, 84px);
  --fs-title: clamp(30px, 3.6vw, 52px);
  --fs-h2: clamp(18px, 1.6vw, 25px);
  --fs-body: clamp(13px, 1.02vw, 16px);
  --fs-label: clamp(11px, .82vw, 13px);
  --fs-mono: clamp(10px, .72vw, 12px);
}

* { box-sizing: border-box; }
html { background: var(--ink); overflow-x: hidden; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: "Helvetica Neue", "Aptos", "Segoe UI Variable", -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-variant-numeric: lining-nums;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
button, a { color: inherit; font: inherit; }
button { cursor: pointer; }
a { color: var(--caption); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--caption) 40%, transparent); text-underline-offset: 3px; }

.sheet { max-width: 1180px; margin: 0 auto; padding: clamp(30px, 5vh, 68px) var(--gutter) clamp(48px, 8vh, 110px); }

.sheet-controls { position: fixed; z-index: 20; top: clamp(14px, 2vh, 22px); right: clamp(14px, 3vw, 30px); display: flex; gap: 8px; }
.sheet-controls button { padding: 7px 13px; border: 1px solid var(--line-strong); background: color-mix(in srgb, var(--ink) 82%, transparent); color: var(--paper-58); font-family: var(--mono); font-size: var(--fs-mono); letter-spacing: .06em; text-transform: uppercase; backdrop-filter: blur(8px); transition: color 180ms ease, border-color 180ms ease; }
.sheet-controls button:hover { color: var(--paper); border-color: var(--paper-40); }

.sheet-head { display: grid; gap: clamp(14px, 2vh, 22px); padding-bottom: clamp(22px, 3.4vh, 38px); border-bottom: 1px solid var(--line-strong); }
.sheet-eyebrow { display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 0; color: var(--paper-40); font-family: var(--mono); font-size: var(--fs-mono); letter-spacing: .1em; text-transform: uppercase; }
.sheet-head h1 { max-width: 22ch; margin: 0; font-size: var(--fs-title); font-weight: 550; letter-spacing: -.03em; line-height: 1.05; text-wrap: balance; }
.sheet-head h1 span { color: var(--caption); }
.sheet-lede { max-width: 68ch; margin: 0; color: var(--paper-58); font-size: clamp(15px, 1.2vw, 19px); line-height: 1.55; }
.sheet-meta { display: flex; flex-wrap: wrap; gap: 6px 26px; color: var(--paper-40); font-family: var(--mono); font-size: var(--fs-mono); letter-spacing: .05em; }

section.block { padding-top: clamp(26px, 4vh, 46px); }
.block-head { display: grid; grid-template-columns: clamp(30px, 4vw, 56px) minmax(0, 1fr); gap: clamp(12px, 1.6vw, 24px); align-items: baseline; padding-bottom: clamp(12px, 1.8vh, 20px); border-bottom: 1px solid var(--line); }
.block-head b { color: var(--caption); font-family: var(--mono); font-size: var(--fs-mono); font-weight: 500; letter-spacing: .06em; }
.block-head h2 { margin: 0; font-size: var(--fs-h2); font-weight: 550; letter-spacing: -.015em; line-height: 1.2; }
.block-body { display: grid; gap: clamp(14px, 2vh, 22px); padding-top: clamp(14px, 2vh, 22px); }
.block-note { max-width: 76ch; margin: 0; color: var(--paper-58); font-size: var(--fs-body); line-height: 1.6; }

.pair-table { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(22px, 3.4vw, 56px); }
.pair-table section { display: grid; align-content: start; gap: clamp(10px, 1.4vh, 15px); }
.pair-table h3 { margin: 0; padding-bottom: clamp(9px, 1.2vh, 13px); border-bottom: 1px solid var(--line-strong); color: var(--paper); font-size: var(--fs-label); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.pair-table.is-split section:first-child h3 { color: var(--hud); }
.pair-table.is-split section:last-child h3 { color: var(--caption); }
.pair-table ul { display: grid; gap: clamp(9px, 1.2vh, 14px); margin: 0; padding: 0; list-style: none; }
.pair-table li { position: relative; padding-left: 20px; color: var(--paper-76); font-size: var(--fs-body); line-height: 1.55; }
.pair-table li::before { content: ""; position: absolute; top: .72em; left: 0; width: 11px; height: 1px; background: var(--paper-40); }

.numbered { display: grid; gap: 0; border-top: 1px solid var(--line-strong); }
.numbered article { display: grid; grid-template-columns: clamp(30px, 3.2vw, 46px) minmax(0, 1fr); gap: clamp(12px, 1.6vw, 24px); align-items: baseline; padding: clamp(11px, 1.5vh, 17px) 0; border-bottom: 1px solid var(--line); }
.numbered b { color: var(--caption); font-family: var(--mono); font-size: var(--fs-mono); font-weight: 500; }
.numbered div { display: grid; gap: 5px; }
.numbered strong { color: var(--paper); font-size: var(--fs-body); font-weight: 560; line-height: 1.4; }
.numbered p { max-width: 76ch; margin: 0; color: var(--paper-58); font-size: var(--fs-body); line-height: 1.55; }

.exclusions { display: grid; gap: clamp(9px, 1.2vh, 14px); margin: 0; padding: clamp(16px, 2.2vw, 26px); border: 1px solid color-mix(in srgb, var(--warn) 42%, transparent); background: color-mix(in srgb, var(--warn) 5%, transparent); list-style: none; }
.exclusions li { position: relative; padding-left: 22px; color: var(--paper-76); font-size: var(--fs-body); line-height: 1.55; }
.exclusions li::before { content: "×"; position: absolute; left: 0; color: var(--warn); font-family: var(--mono); font-size: var(--fs-body); }

.formula { display: grid; gap: clamp(10px, 1.4vh, 16px); padding: clamp(16px, 2.2vw, 28px); border: 1px solid color-mix(in srgb, var(--caption) 46%, transparent); background: radial-gradient(circle at 12% 0%, color-mix(in srgb, var(--caption) 9%, transparent), transparent 62%), var(--ink-soft); }
.formula-line { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.formula-line em { color: var(--caption); font-family: var(--mono); font-size: var(--fs-mono); font-style: normal; letter-spacing: .06em; text-transform: uppercase; }
.formula-line i { color: var(--paper-40); font-family: var(--mono); font-size: var(--fs-body); font-style: normal; }
.formula-line b { color: var(--paper); font-size: var(--fs-body); font-weight: 550; }
.formula p { max-width: 76ch; margin: 0; color: var(--paper-58); font-size: var(--fs-body); line-height: 1.55; }

.milestones { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(14px, 2vw, 28px); }
.milestones article { display: grid; align-content: start; gap: 7px; padding-top: clamp(11px, 1.5vh, 16px); border-top: 1px solid var(--line-strong); }
.milestones span { color: var(--caption); font-family: var(--mono); font-size: var(--fs-mono); letter-spacing: .06em; text-transform: uppercase; }
.milestones strong { color: var(--paper); font-size: var(--fs-body); font-weight: 550; line-height: 1.35; }
.milestones p { margin: 0; color: var(--paper-58); font-size: var(--fs-body); line-height: 1.55; }

.acceptance { display: grid; gap: clamp(10px, 1.4vh, 15px); padding: clamp(16px, 2.2vw, 28px); border: 1px solid color-mix(in srgb, var(--hud) 40%, transparent); background: color-mix(in srgb, var(--hud) 5%, transparent); }
.acceptance > span { color: var(--hud); font-family: var(--mono); font-size: var(--fs-mono); letter-spacing: .07em; text-transform: uppercase; }
.acceptance ul { display: grid; gap: clamp(9px, 1.2vh, 14px); margin: 0; padding: 0; list-style: none; }
.acceptance li { position: relative; padding-left: 22px; color: var(--paper-76); font-size: var(--fs-body); line-height: 1.55; }
.acceptance li::before { content: "✓"; position: absolute; left: 0; color: var(--hud); font-family: var(--mono); font-size: var(--fs-label); }

.scope-defaults { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: clamp(12px, 1.8vw, 26px); }
.scope-defaults article { display: grid; gap: 4px; padding-top: clamp(11px, 1.5vh, 16px); border-top: 1px solid var(--line-strong); }
.scope-defaults b { color: var(--paper); font-size: clamp(22px, 2.3vw, 34px); font-weight: 560; letter-spacing: -.03em; line-height: 1; }
.scope-defaults span { color: var(--paper-58); font-size: var(--fs-label); line-height: 1.4; }

.sheet-foot { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: clamp(18px, 2.6vw, 40px); align-items: end; margin-top: clamp(30px, 5vh, 60px); padding-top: clamp(18px, 2.6vh, 30px); border-top: 1px solid var(--line-strong); }
.sheet-foot p { max-width: 60ch; margin: 0; color: var(--paper-58); font-size: var(--fs-body); line-height: 1.55; }
.sheet-contacts { display: flex; flex-wrap: wrap; gap: 8px 26px; }
.sheet-contacts a { color: var(--paper); font-size: var(--fs-body); font-weight: 520; text-decoration: none; border-bottom: 1px solid var(--line-strong); }
.sheet-contacts a:hover { color: var(--caption); border-bottom-color: var(--caption); }
.deck-return { margin-top: clamp(14px, 2vh, 22px); color: var(--paper-40); font-family: var(--mono); font-size: var(--fs-mono); letter-spacing: .05em; }

@media (max-width: 860px) {
  .pair-table, .milestones { grid-template-columns: 1fr; }
  .scope-defaults { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .block-head { grid-template-columns: 1fr; gap: 6px; }
  .sheet-foot { grid-template-columns: 1fr; align-items: start; }
  .sheet-controls { top: 10px; right: 12px; }
}
@media (max-width: 520px) {
  .scope-defaults { grid-template-columns: 1fr; }
  .numbered article { grid-template-columns: 1fr; gap: 5px; }
}

/* Print is ink on white: this is the copy that gets filed and forwarded. */
@media print {
  :root {
    --ink: #ffffff;
    --ink-soft: #f6f6f4;
    --paper: #101012;
    --paper-76: #33333a;
    --paper-58: #55555e;
    --paper-40: #74747d;
    --line: #d8d8d4;
    --line-strong: #a9a9a4;
    --caption: #8a6a1a;
    --hud: #1f6b45;
    --warn: #9a4a24;
    --gutter: 0;
  }
  html, body { background: #fff; color: #101012; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .sheet { max-width: none; padding: 0; }
  .sheet-controls, .deck-return { display: none; }
  a { color: #101012; text-decoration: none; }
  section.block { break-inside: avoid; page-break-inside: avoid; padding-top: 20px; }
  .pair-table, .milestones, .scope-defaults, .formula, .acceptance, .exclusions { break-inside: avoid; page-break-inside: avoid; }
  .sheet-head { break-after: avoid; page-break-after: avoid; }
  .exclusions { background: #fdf4ef; }
  .acceptance { background: #f0f8f3; }
  .formula { background: #fbf7ec; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 1ms !important; transition-duration: 1ms !important; }
}