:root {
  --bg: #1a100c;
  --bg2: #241610;
  --panel: #2c1b14;
  --panel2: #352118;
  --ink: #f3e6d8;
  --muted: #b9a090;
  --accent: #c45c26;
  --accent2: #e8a05c;
  --dirt: #8b3a1f;
  --easy: #3d7a5a;
  --quality: #c45c26;
  --long: #5b7fa5;
  --race: #b83d5a;
  --rest: #6a5a50;
  --warn: #d4a017;
  --ok: #6bbf8a;
  --border: #4a3024;
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #3a1f14 0%, transparent 55%),
              radial-gradient(900px 500px at 100% 0%, #2a1810 0%, transparent 50%),
              var(--bg);
  color: var(--ink);
  line-height: 1.5;
  min-height: 100vh;
}
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(960px, calc(100% - 1.5rem)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(26,16,12,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { padding: .85rem 0 .55rem; }
.brand { display: flex; align-items: baseline; gap: .6rem; flex-wrap: wrap; }
.brand h1 {
  margin: 0; font-size: 1.15rem; letter-spacing: .02em;
  font-weight: 700;
}
.brand .tagline { margin: 0; color: var(--muted); font-size: .85rem; }
.tabs {
  display: flex; gap: .35rem; flex-wrap: wrap;
  margin-top: .65rem; padding-bottom: .25rem;
}
.tab {
  color: var(--muted);
  padding: .4rem .7rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: .86rem;
  font-weight: 600;
}
.tab:hover { color: var(--ink); text-decoration: none; background: var(--panel); }
.tab.active {
  color: var(--ink);
  background: linear-gradient(135deg, var(--dirt), var(--accent));
  border-color: transparent;
}
main.wrap { padding: 1rem 0 3.5rem; }
.banner {
  background: linear-gradient(90deg, #3a2218, #2c1b14);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent2);
  padding: .85rem 1rem;
  border-radius: var(--radius);
  color: var(--ink);
  font-size: .92rem;
  margin-bottom: 1rem;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
}
.panel-head { display: flex; justify-content: space-between; gap: .75rem; flex-wrap: wrap; align-items: baseline; }
.panel h2 { margin: 0 0 .35rem; font-size: 1.15rem; }
.muted { color: var(--muted); font-size: .9rem; }
.hidden { display: none !important; }
.grid-2 { display: grid; gap: .85rem; grid-template-columns: 1fr; }
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .brand h1 { font-size: 1.35rem; }
}
.card-list { display: grid; gap: .75rem; }
.card {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .9rem 1rem;
}
.card h3 { margin: 0 0 .4rem; font-size: 1rem; }
.card .subtitle { color: var(--muted); font-size: .85rem; margin-bottom: .55rem; }
.bullets { margin: 0; padding-left: 1.1rem; }
.bullets li { margin: .28rem 0; }
.tags { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .7rem; }
.tag {
  font-size: .72rem; font-weight: 700; letter-spacing: .02em;
  padding: .2rem .5rem; border-radius: 999px; border: 1px solid var(--border);
}
.tag.verified { background: #1e3a2c; color: var(--ok); border-color: #2f5a42; }
.tag.simplified { background: #3a3218; color: #e6c86a; border-color: #5a4a20; }
.tag.fiction { background: #3a1e28; color: #e89ab0; border-color: #5a2a38; }
.tag.disclaimer { background: #2a2a2a; color: #ccc; }
.pill {
  display: inline-block; font-size: .72rem; font-weight: 700;
  padding: .15rem .45rem; border-radius: 999px; color: #fff;
}
.pill.easy { background: var(--easy); }
.pill.quality { background: var(--quality); }
.pill.long { background: var(--long); }
.pill.race { background: var(--race); }
.pill.rest, .pill.rest-adjacent { background: var(--rest); }
.pill.hills { background: #a34b1c; }
.pill.fartlek-or-quality { background: var(--quality); }
.method-grid {
  display: grid; gap: .75rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.method-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .85rem;
}
.method-card strong { display: block; color: var(--accent2); margin-bottom: .25rem; }
.plan-tabs { display: flex; flex-wrap: wrap; gap: .4rem; margin: .6rem 0 1rem; }
.plan-tab, button, .btn {
  font: inherit; cursor: pointer;
  background: var(--bg2); color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .4rem .85rem;
}
.plan-tab.active, .btn.primary {
  background: linear-gradient(135deg, var(--dirt), var(--accent));
  border-color: transparent; font-weight: 700;
}
.btn.danger { background: #5a2030; border-color: #7a3040; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.week-list { display: grid; gap: .55rem; }
.week-row {
  display: grid; gap: .5rem;
  grid-template-columns: auto 1fr;
  align-items: start;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .65rem .75rem;
  cursor: pointer;
}
.week-row:hover, .week-row.open { border-color: var(--accent); }
.week-num {
  font-weight: 800; color: var(--accent2); min-width: 4.2rem;
}
.week-detail { margin-top: .45rem; display: none; }
.week-row.open .week-detail { display: block; }
.day-line {
  display: flex; gap: .5rem; flex-wrap: wrap; align-items: baseline;
  padding: .28rem 0; border-top: 1px dashed #4a3428;
  font-size: .9rem;
}
.day-line:first-child { border-top: 0; }
.day-name { font-weight: 700; min-width: 3.6rem; color: var(--accent2); }
textarea, input, select {
  width: 100%; font: inherit; color: var(--ink);
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 10px; padding: .55rem .7rem;
}
textarea { min-height: 120px; font-family: var(--mono); font-size: .82rem; }
label { display: block; font-size: .85rem; color: var(--muted); margin: .55rem 0 .25rem; }
.dropzone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 1.2rem;
  text-align: center;
  color: var(--muted);
  background: var(--bg2);
  transition: border-color .15s, background .15s;
}
.dropzone.drag { border-color: var(--accent2); background: #3a2418; color: var(--ink); }
.row-actions { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .75rem; }
.stat-grid {
  display: grid; gap: .65rem;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}
.stat {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 12px; padding: .75rem;
}
.stat .n { font-size: 1.45rem; font-weight: 800; color: var(--accent2); }
.stat .l { font-size: .78rem; color: var(--muted); }
.warn-box {
  background: #3a2e10; border: 1px solid #6a5218; color: #f0d78a;
  border-radius: 10px; padding: .7rem .85rem; margin: .6rem 0; font-size: .9rem;
}
.ok-box {
  background: #1a3226; border: 1px solid #2f5a42; color: #b6e0c6;
  border-radius: 10px; padding: .7rem .85rem; margin: .6rem 0; font-size: .9rem;
}
.tip-card {
  border-left: 4px solid var(--accent2);
  background: var(--bg2);
  border-radius: 10px;
  padding: .75rem .9rem;
}
.tip-card h4 { margin: 0 0 .3rem; font-size: .95rem; }
.runs-table { width: 100%; border-collapse: collapse; font-size: .86rem; }
.runs-table th, .runs-table td {
  text-align: left; padding: .45rem .35rem;
  border-bottom: 1px solid var(--border); vertical-align: top;
}
.runs-table th { color: var(--muted); font-weight: 600; }
.footer-note {
  margin-top: 1.5rem; color: var(--muted); font-size: .8rem; text-align: center;
}
.skeleton-line {
  font-size: 1.05rem; font-weight: 700; color: var(--accent2);
  margin: .4rem 0 1rem;
}

/* —— Import guides —— */
.import-guide {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .85rem 1rem;
  margin: .75rem 0;
}
.import-guide h3 {
  margin: 0 0 .45rem;
  font-size: 1rem;
  color: var(--accent2);
}
.import-guide ol, .import-guide ul {
  margin: .35rem 0 0;
  padding-left: 1.2rem;
  font-size: .9rem;
  color: var(--ink);
}
.import-guide li { margin: .28rem 0; }
.import-guide .note {
  margin: .55rem 0 0;
  font-size: .82rem;
  color: var(--muted);
}
.checklist {
  list-style: none;
  padding: 0;
  margin: .5rem 0 0;
}
.checklist li {
  display: flex; gap: .55rem; align-items: flex-start;
  padding: .45rem 0;
  border-top: 1px dashed #4a3428;
  font-size: .9rem;
}
.checklist li:first-child { border-top: 0; }
.check-mark {
  flex: 0 0 auto;
  width: 1.4rem; height: 1.4rem;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 800;
}
.check-mark.pass { background: #1e3a2c; color: var(--ok); }
.check-mark.fail { background: #3a1e28; color: #e89ab0; }
.check-mark.warn { background: #3a3218; color: #e6c86a; }
.score-ring {
  font-size: 1.6rem; font-weight: 800; color: var(--accent2);
}

/* —— Week rollup strip —— */
.week-strip {
  display: grid; gap: .65rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  margin-top: .6rem;
}
.week-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .7rem .8rem;
  font-size: .85rem;
}
.week-card.current { border-color: var(--accent); }
.week-card h4 { margin: 0 0 .35rem; font-size: .88rem; color: var(--accent2); }
.week-card .meta { color: var(--muted); font-size: .78rem; margin-bottom: .4rem; }
.week-card .flags { margin-top: .35rem; display: flex; flex-wrap: wrap; gap: .3rem; }

/* —— Simulate —— */
.sim-controls {
  display: grid; gap: .65rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .sim-controls { grid-template-columns: 1fr 1fr; }
  .sim-controls .full { grid-column: 1 / -1; }
}
.sim-compare {
  display: grid; gap: .75rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .sim-compare { grid-template-columns: minmax(140px, 200px) 1fr; }
}
.sim-actual-strip {
  display: flex; flex-direction: column; gap: .5rem;
}
.sim-week-row {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .65rem .75rem;
}
.sim-week-row.down { border-color: #6a5218; }
.sim-sessions {
  display: flex; flex-wrap: wrap; gap: .35rem;
  margin-top: .4rem;
}
.scale-badge {
  display: inline-block;
  background: #3a3218; color: #e6c86a;
  border: 1px solid #5a4a20;
  border-radius: 999px;
  padding: .15rem .55rem;
  font-size: .78rem; font-weight: 700;
}
.checkbox-row {
  display: flex; align-items: center; gap: .55rem;
  margin: .5rem 0;
  font-size: .9rem;
}
.checkbox-row input { width: auto; }

/* —— Print / export —— */
@media print {
  .site-header, .footer-note, .no-print, .tabs { display: none !important; }
  body {
    background: #fff; color: #111;
  }
  .panel, .banner, .week-card, .sim-week-row, .import-guide, .card, .tip-card {
    background: #fff; border-color: #ccc; color: #111;
    break-inside: avoid;
  }
  .muted, .brand .tagline { color: #444; }
  a { color: #000; text-decoration: none; }
  .wrap { width: 100%; }
  .view.hidden { display: none !important; }
  #view-simulate.view { display: block !important; }
}
.print-only { display: none; }
@media print {
  .print-only { display: block; }
}