/* ============================================================
   Project Snowbridge — EDW SQL Server → Snowflake migration
   Shared design system + artifact components
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --ink: #12161d;
  --ink-2: #1a212c;
  --ink-3: #232c39;
  --paper: #e9eceb;
  --card: #ffffff;
  --source: #b26a1f;        /* legacy — SQL Server */
  --source-soft: #f3e6d2;
  --source-line: #d9a45e;
  --target: #1a8f5c;        /* destination — Snowflake, and site brand accent */
  --target-soft: #e6f5ee;
  --target-line: #33c17c;
  --valid: #1a8f5c;
  --valid-soft: #e6f5ee;
  --risk-high: #b3453b;
  --risk-high-soft: #f1dcd9;
  --text: #12161d;
  --muted: #5b6470;
  --muted-2: #8a93a0;
  --hairline: #cfd4d3;
  --hairline-2: #dde1e0;
  --display: 'Space Grotesk', system-ui, sans-serif;
  --body: 'IBM Plex Sans', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--body);
  font-size: 16.5px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 28px; }
.narrow { max-width: 780px; }
a { color: var(--target); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- top nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(18,22,29,0.97);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav .wrap { display: flex; align-items: center; gap: 26px; height: 56px; overflow-x: auto; }
.nav .portfolio-back { font-family: var(--mono); font-size: 12.5px; color: var(--muted-2); white-space: nowrap; padding-right: 18px; border-right: 1px solid rgba(255,255,255,0.14); }
.nav .portfolio-back:hover { color: #fff; text-decoration: none; }
.nav .brand { font-family: var(--mono); font-size: 13px; color: #fff; font-weight: 500; white-space: nowrap; letter-spacing: 0.02em; }
.nav .brand span { color: var(--target-line); }
.nav .links { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  font-family: var(--mono); font-size: 12.5px; color: var(--muted-2);
  padding: 7px 11px; border-radius: 7px; white-space: nowrap; letter-spacing: 0.02em;
}
.nav a:hover { color: #fff; background: rgba(255,255,255,0.06); text-decoration: none; }
.nav a.active { color: #fff; background: rgba(33,122,158,0.22); }

/* ---------- eyebrow / labels ---------- */
.eyebrow {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted-2); margin: 0;
}

/* ---------- hero ---------- */
.hero { background: var(--ink); color: #eef2f6; padding: 70px 0 78px; }
.hero .phase-tag {
  display: inline-flex; align-items: baseline; gap: 10px; margin-bottom: 22px;
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted-2);
}
.hero .phase-tag .num { color: var(--target-line); font-weight: 600; }
.hero h1 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(32px, 5vw, 56px); line-height: 1.05; letter-spacing: -0.02em;
  margin: 0 0 22px; max-width: 18ch;
}
.hero h1 .swap { color: var(--source-line); }
.hero h1 .keep { color: var(--target-line); }
.hero .lede { font-size: 18.5px; line-height: 1.55; color: #b9c2cd; max-width: 58ch; margin: 0; }
.hero .lede em { font-style: normal; color: #eef2f6; }

/* ---------- phase strip (progress) ---------- */
.phase-strip { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; margin-top: 40px; }
.phase-strip .st {
  font-family: var(--mono); font-size: 12px; padding: 11px 12px;
  border: 1px solid rgba(255,255,255,0.1); border-radius: 8px; color: var(--muted-2);
}
.phase-strip .st .pn { color: var(--muted-2); }
.phase-strip .st b { display: block; color: #cdd5df; font-weight: 500; margin-top: 3px; font-size: 12.5px; }
.phase-strip .st.on { border-color: var(--target-line); background: rgba(33,122,158,0.16); }
.phase-strip .st.on .pn { color: var(--target-line); }
.phase-strip .st.on b { color: #fff; }

/* ---------- sections ---------- */
section { padding: 60px 0; }
section.tight { padding: 44px 0; }
.section-head { margin-bottom: 30px; }
.section-head .eyebrow { margin-bottom: 13px; }
h2 { font-family: var(--display); font-weight: 600; font-size: clamp(24px, 3.2vw, 33px); line-height: 1.12; letter-spacing: -0.015em; margin: 0; max-width: 22ch; }
h3 { font-family: var(--display); font-weight: 600; font-size: 19px; letter-spacing: -0.01em; margin: 0 0 8px; }
p { margin: 0 0 16px; }
p:last-child { margin-bottom: 0; }
.intro { color: var(--muted); max-width: 62ch; margin-top: 12px; font-size: 17px; }
.lead-in { color: var(--source); font-weight: 600; }
.band { background: var(--card); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }

/* ---------- kpi strip ---------- */
.kpis { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.kpi { background: var(--card); border: 1px solid var(--hairline); border-radius: 11px; padding: 18px 16px; }
.kpi .v { font-family: var(--display); font-weight: 600; font-size: 26px; letter-spacing: -0.02em; color: var(--ink); }
.kpi .v .u { font-size: 14px; color: var(--muted); font-weight: 500; }
.kpi .k { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-2); margin-top: 6px; }

/* ---------- three-cards ---------- */
.cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--card); border: 1px solid var(--hairline); border-radius: 13px; padding: 24px 24px 22px;
}
.card .n { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--target); font-weight: 600; margin: 0 0 12px; }
.card p { font-size: 15.5px; color: var(--muted); margin: 0; }
.card p + p { margin-top: 10px; }

/* ---------- artifact wrapper ---------- */
.artifact {
  background: var(--card); border: 1px solid var(--hairline); border-radius: 14px;
  overflow: hidden; margin: 26px 0;
}
.artifact > .a-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: var(--ink); color: #eef2f6; padding: 14px 22px;
}
.artifact > .a-head .a-label { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--target-line); }
.artifact > .a-head .a-title { font-family: var(--display); font-weight: 600; font-size: 16px; color: #fff; }
.artifact > .a-head .a-meta { font-family: var(--mono); font-size: 11px; color: var(--muted-2); letter-spacing: 0.04em; }
.artifact .a-body { padding: 24px 24px 26px; }
.artifact.star > .a-head { border-bottom: 2px solid var(--target-line); }

/* field rows for docs like charter */
.fieldrow { display: grid; grid-template-columns: 200px 1fr; gap: 0; border-top: 1px solid var(--hairline-2); }
.fieldrow:first-child { border-top: none; }
.fieldrow .fk { font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted-2); padding: 14px 18px 14px 0; }
.fieldrow .fv { padding: 14px 0; font-size: 15.5px; }
.fieldrow .fv ul { margin: 0; padding-left: 18px; }
.fieldrow .fv li { margin: 3px 0; }

/* ---------- tables ---------- */
.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.tbl th {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--muted-2); text-align: left; padding: 11px 14px; background: #f4f6f5; font-weight: 500;
  border-bottom: 1px solid var(--hairline);
}
.tbl td { padding: 12px 14px; border-bottom: 1px solid var(--hairline-2); vertical-align: top; color: var(--text); }
.tbl tr:last-child td { border-bottom: none; }
.tbl .mono { font-family: var(--mono); font-size: 13px; }
.tbl .src { color: var(--source); font-family: var(--mono); font-size: 13px; }
.tbl .tgt { color: var(--target); font-family: var(--mono); font-size: 13px; }
.tbl .muted { color: var(--muted); }
.tbl-scroll { overflow-x: auto; }
.gt-row { background: rgba(33,122,158,0.06); }
.gt-row td { box-shadow: inset 3px 0 0 var(--target-line); }

/* chips */
.chip { display: inline-block; font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: 0.03em; padding: 3px 9px; border-radius: 20px; white-space: nowrap; }
.chip.high { background: var(--risk-high-soft); color: var(--risk-high); }
.chip.med  { background: var(--source-soft); color: var(--source); }
.chip.low  { background: var(--valid-soft); color: var(--valid); }
.chip.r { background: var(--risk-high-soft); color: var(--risk-high); }
.chip.a { background: var(--source-soft); color: var(--source); }
.chip.g { background: var(--valid-soft); color: var(--valid); }
.chip.tag { background: #eef1f0; color: var(--muted); }

/* RACI grid */
.raci { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.raci th, .raci td { padding: 10px 8px; text-align: center; border-bottom: 1px solid var(--hairline-2); }
.raci th { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted-2); background: #f4f6f5; font-weight: 500; }
.raci td:first-child, .raci th:first-child { text-align: left; }
.raci .who { font-weight: 500; color: var(--text); white-space: nowrap; }
.raci .m { font-family: var(--mono); font-weight: 600; font-size: 12px; }
.raci .m.R { color: var(--target); }
.raci .m.A { color: var(--risk-high); }
.raci .m.C { color: var(--source); }
.raci .m.I { color: var(--muted-2); }

/* timeline / wave gantt */
.gantt { border: 1px solid var(--hairline); border-radius: 12px; overflow: hidden; }
.gantt .g-months { display: grid; grid-template-columns: 150px repeat(9, 1fr); background: #f4f6f5; border-bottom: 1px solid var(--hairline); }
.gantt .g-months div { font-family: var(--mono); font-size: 10.5px; color: var(--muted-2); padding: 9px 6px; text-align: center; letter-spacing: 0.04em; }
.gantt .g-months div:first-child { text-align: left; padding-left: 16px; }
.gantt .g-row { display: grid; grid-template-columns: 150px repeat(9, 1fr); align-items: center; border-bottom: 1px solid var(--hairline-2); position: relative; }
.gantt .g-row:last-child { border-bottom: none; }
.gantt .g-label { font-family: var(--mono); font-size: 12.5px; padding: 14px 10px 14px 16px; color: var(--text); font-weight: 500; }
.gantt .g-track { grid-column: 2 / -1; position: relative; height: 44px; }
.gantt .bar { position: absolute; top: 10px; height: 24px; border-radius: 6px; display: flex; align-items: center; padding: 0 10px; font-family: var(--mono); font-size: 11px; color: #fff; white-space: nowrap; }
.gantt .bar.w { background: var(--target); }
.gantt .bar.w2 { background: var(--target-line); }
.gantt .bar.prep { background: var(--source); }
.gantt .bar.cut { background: var(--risk-high); }

/* runbook */
.runbook .tbl td:first-child { font-family: var(--mono); font-weight: 600; color: var(--ink); white-space: nowrap; }
.runbook .tbl .roll td { background: var(--risk-high-soft); }

/* status RAG dashboard */
.rag-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.rag-ws { border: 1px solid var(--hairline); border-radius: 11px; padding: 16px 18px; background: var(--card); }
.rag-ws .top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.rag-ws .top b { font-family: var(--display); font-size: 15px; }
.rag-ws p { font-size: 13.5px; color: var(--muted); margin: 0; }

/* callouts */
.callout { border-left: 3px solid var(--target-line); background: var(--card); border-radius: 0 11px 11px 0; padding: 18px 22px; margin: 22px 0; }
.callout.thread { border-left-color: var(--target); background: var(--target-soft); }
.callout.thread .eyebrow { color: var(--target); margin-bottom: 8px; }
.callout .eyebrow { margin-bottom: 8px; }
.callout p { font-size: 15px; margin: 0; color: var(--text); }
.callout p + p { margin-top: 8px; }

/* principle list */
.principles { list-style: none; padding: 0; margin: 0; }
.principles li { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding: 20px 0; border-top: 1px solid var(--hairline); }
.principles li:first-child { border-top: none; }
.principles .pn { font-family: var(--display); font-weight: 600; font-size: 20px; color: var(--target-line); }
.principles b { font-family: var(--display); font-weight: 600; font-size: 17px; display: block; margin-bottom: 4px; }
.principles p { font-size: 15.5px; color: var(--muted); margin: 0; }

/* link list */
.linklist { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; }
.linklist a { display: block; background: var(--card); border: 1px solid var(--hairline); border-radius: 10px; padding: 15px 18px; color: var(--text); }
.linklist a:hover { border-color: var(--target-line); text-decoration: none; }
.linklist .l-k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--target); }
.linklist .l-t { font-family: var(--display); font-weight: 600; font-size: 15.5px; margin-top: 3px; }

/* two-column prose */
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }

/* footer nav */
footer { background: var(--ink); color: #cdd5df; padding: 44px 0 40px; }
.foot-nav { display: flex; justify-content: space-between; gap: 16px; }
.foot-nav a { font-family: var(--mono); font-size: 13px; color: var(--muted-2); }
.foot-nav a:hover { color: #fff; text-decoration: none; }
.foot-nav a b { display: block; color: #fff; font-family: var(--display); font-size: 16px; margin-top: 4px; }
.foot-nav a.next { text-align: right; }
.colophon { margin-top: 28px; font-family: var(--mono); font-size: 11.5px; color: var(--muted-2); letter-spacing: 0.03em; border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; }

/* honesty note */
.note-frame { font-family: var(--mono); font-size: 12.5px; color: var(--muted-2); letter-spacing: 0.02em; margin-top: 18px; }

/* responsive */
@media (max-width: 860px) {
  .kpis { grid-template-columns: repeat(3, 1fr); }
  .cards3 { grid-template-columns: 1fr; }
  .rag-grid { grid-template-columns: 1fr; }
  .linklist { grid-template-columns: 1fr; }
  .two { grid-template-columns: 1fr; }
  .phase-strip { grid-template-columns: 1fr 1fr; }
  .fieldrow { grid-template-columns: 1fr; }
  .fieldrow .fk { padding-bottom: 2px; }
  .fieldrow .fv { padding-top: 4px; }
  .gantt .g-months div:not(:first-child), .gantt .bar { font-size: 9px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }