/* Vantage training: the Institute's own tokens (index.html :root) with a paper session sheet. */
:root {
  --gray-950: #0d0f12; --gray-900: #13161b; --gray-800: #1c2028; --gray-700: #2a2f3a; --gray-600: #3d4455; --gray-400: #8a91a8; --gray-200: #c8cdd8; --gray-100: #e8eaf0;
  --cyan: #00f5d4; --violet: #b06fff; --amber: #ffb830; --rose: #ff5fa0; --white: #f4f6fc;
  --bg: var(--gray-950); --bg-2: var(--gray-900); --bg-3: var(--gray-800); --line: var(--gray-700); --line-soft: #202530;
  --ink: var(--gray-100); --ink-2: var(--gray-400); --ink-3: var(--gray-600);
  --paper: var(--gray-900); --paper-2: var(--gray-800); --paper-line: var(--gray-700); --pen: var(--gray-100); --pen-2: var(--gray-400); --pad: var(--gray-950);
  --gold: var(--amber); --teal: var(--cyan); --good: #59d98a; --crit: var(--rose);
  --head: 'Syne', sans-serif; --mono: 'DM Mono', ui-monospace, Menlo, monospace; --serif: 'Fraunces', Georgia, serif; --sans: var(--mono);
  --shadow: 0 18px 48px -24px rgba(0,0,0,.8);
}
:root[data-theme="light"] { --bg: #e9ecf4; --bg-2: #fff; --bg-3: #f2f4fa; --line: #d3d8e6; --line-soft: #e3e7f0; --ink: #171b2c; --ink-2: #4f5873; --ink-3: #8690ad; --teal: #0e9985; --gold: #b9760c; }
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--gray-200); font: 14px/1.7 var(--mono); min-height: 100vh; display: flex; flex-direction: column; }
a { color: var(--cyan); }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--line-soft); background: linear-gradient(to bottom, rgba(13,15,18,.96), rgba(13,15,18,.9)); position: sticky; top: 0; z-index: 5; backdrop-filter: blur(4px); }
.brand { font-family: var(--head); font-weight: 800; font-size: 20px; letter-spacing: .12em; color: var(--white); text-decoration: none; }
.brand span { color: var(--cyan); }
.nav { display: flex; gap: 2px; }
.nav a { color: var(--gray-400); text-decoration: none; padding: 6px 10px; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; border-bottom: 1px solid transparent; }
.nav a[aria-current="page"] { color: var(--white); border-bottom-color: var(--cyan); }
.app { flex: 1; width: 100%; max-width: 920px; margin: 0 auto; padding: 24px 16px 56px; }
.foot { color: var(--gray-600); font-size: 11px; letter-spacing: .04em; padding: 18px 16px; text-align: center; border-top: 1px solid var(--line-soft); }
h1, h2, h3 { font-family: var(--head); font-weight: 700; margin: 0 0 8px; color: var(--white); letter-spacing: .02em; }
h1 { font-size: 28px; } h2 { font-size: 20px; text-transform: uppercase; letter-spacing: .06em; font-size: 16px; } h3 { font-size: 15px; text-transform: uppercase; letter-spacing: .06em; }
p { margin: 0 0 10px; } .muted { color: var(--gray-400); } .small { font-size: 12px; } .tiny { font-size: 11px; color: var(--gray-600); }
.card { background: var(--gray-900); border: 1px solid var(--line-soft); padding: 22px; margin-bottom: 14px; position: relative; }
.card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--cyan), var(--violet)); opacity: .5; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
button, .btn { font: inherit; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; border: 1px solid var(--gray-700); background: var(--gray-800); color: var(--gray-100); padding: 10px 16px; cursor: pointer; }
button.primary { font-family: var(--head); font-weight: 700; letter-spacing: .12em; background: linear-gradient(135deg, var(--cyan), var(--violet)); color: var(--gray-950); border: none; clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%); padding: 14px 28px; }
button.primary:hover { filter: brightness(1.1); box-shadow: 0 0 40px rgba(0,245,212,.3); }
button.ghost { background: transparent; }
button.danger { color: var(--rose); border-color: rgba(255,95,160,.4); }
button:disabled { opacity: .4; cursor: not-allowed; }
button[aria-pressed="true"] { background: var(--cyan); color: var(--gray-950); border-color: transparent; }
input, textarea, select { font: inherit; width: 100%; background: var(--gray-950); color: var(--gray-100); border: 1px solid var(--gray-700); padding: 10px 12px; }
input:focus, textarea:focus { outline: none; border-color: var(--cyan); }
textarea { min-height: 72px; resize: vertical; }
label { display: block; font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--gray-400); margin: 12px 0 5px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button { padding: 6px 11px; font-size: 12px; text-transform: none; letter-spacing: 0; }
.stat { background: var(--gray-800); padding: 12px 14px; border-left: 2px solid var(--violet); }
.stat b { display: block; font-size: 22px; font-family: var(--head); font-weight: 700; color: var(--white); }
.stat span { font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--gray-400); }
/* ladder */
.ladder { display: flex; flex-direction: column; gap: 6px; }
.rung { display: grid; grid-template-columns: 34px 1fr auto; gap: 10px; align-items: center; padding: 12px 14px; border: 1px solid var(--line-soft); background: var(--gray-900); }
.rung.done { opacity: .7; } .rung.now { border-color: var(--cyan); box-shadow: 0 0 0 1px rgba(0,245,212,.25) inset, 0 0 30px -10px rgba(0,245,212,.35); }
.rung .dot { width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--gray-600); display: grid; place-items: center; font-size: 11px; color: var(--gray-400); }
.rung.done .dot { background: var(--good); border-color: var(--good); color: #042; } .rung.now .dot { border-color: var(--cyan); color: var(--cyan); }
.rung b { font-family: var(--head); color: var(--white); letter-spacing: .02em; }
.rung .pct { font-size: 11px; color: var(--gray-600); }
/* session sheet: the Institute's dark palette, the viewer's own words in Fraunces */
.sheet { background: var(--paper); color: var(--pen); padding: 20px; border: 1px solid var(--line-soft); position: relative; font-family: var(--serif); font-size: 16px; }
.sheet::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--cyan), var(--violet)); }
.sheet label { color: var(--pen-2); font-family: var(--mono); }
.sheet .muted { color: var(--pen-2); } .sheet .small { font-size: 13px; }
.sheet input, .sheet textarea, .sheet select { background: var(--pad); color: var(--pen); border-color: var(--paper-line); font-family: var(--serif); font-size: 16px; }
.sheet input:focus, .sheet textarea:focus { border-color: var(--cyan); }
.sheet button { background: var(--paper-2); color: var(--pen); border-color: var(--paper-line); font-family: var(--mono); }
.sheet button.primary { background: linear-gradient(135deg, var(--cyan), var(--violet)); color: var(--gray-950); border: none; font-family: var(--head); }
.sheet button.danger { color: var(--rose); border-color: rgba(255,95,160,.4); background: transparent; }
.sheet .chips button[aria-pressed="true"] { background: var(--cyan); color: var(--gray-950); border-color: transparent; }
.sheet h2, .sheet h3 { color: var(--white); font-family: var(--head); }
.sheet h3 { color: var(--cyan); }
.sheet i { color: var(--gray-400); }
.coord { font-family: var(--mono); font-size: 34px; letter-spacing: .14em; text-align: center; padding: 14px; border: 1px dashed var(--gray-600); margin: 8px 0 14px; background: var(--pad); color: var(--cyan); text-shadow: 0 0 24px rgba(0,245,212,.35); }
.phase-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.phase-tabs span { padding: 5px 10px; background: var(--paper-2); font-size: 11px; font-family: var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--pen-2); }
.phase-tabs span.now { background: var(--cyan); color: var(--gray-950); }
.phase-tabs span.done { text-decoration: line-through; opacity: .6; }
canvas.pad { width: 100%; height: 260px; background: var(--pad); border: 1px solid var(--paper-line); touch-action: none; display: block; }
canvas.pad.tall { height: 360px; }
.matrix { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 13px; }
.matrix th { text-align: left; font-weight: 500; color: var(--pen-2); padding: 6px 4px; border-bottom: 1px solid var(--paper-line); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; }
.matrix td { padding: 4px; border-bottom: 1px dotted var(--paper-line); vertical-align: top; font-family: var(--serif); font-size: 15px; }
.matrix td.k { font-family: var(--mono); font-weight: 500; width: 46px; color: var(--cyan); }
svg.page { width: 180px; height: auto; display: block; margin: 12px auto 0; color: var(--gray-400); }
.circle { width: 160px; height: 160px; border-radius: 50%; border: 1px solid var(--gray-400); margin: 10px auto; }
/* reveal */
.item { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--line-soft); }
.item .seg { display: flex; gap: 4px; } .item .seg button { padding: 5px 9px; font-size: 11px; }
.item .seg button[data-m="hit"][aria-pressed="true"] { background: var(--good); color: #042; }
.item .seg button[data-m="miss"][aria-pressed="true"] { background: var(--rose); color: #300; }
.item .seg button[data-m="unsure"][aria-pressed="true"] { background: var(--gray-600); color: var(--white); }
.item .ph { font-size: 10px; color: var(--gray-600); margin-right: 6px; }
.reveal { border-left: 2px solid var(--amber); }
.reveal h2 { text-transform: none; font-size: 20px; letter-spacing: 0; font-family: var(--serif); font-weight: 300; font-style: italic; }
/* field: the real SHAPEFIELD in a frame */
.field-frame { width: 100%; height: calc(100vh - 120px); min-height: 720px; border: 1px solid var(--line); background: #0a0b11; display: block; }
.log-item { display: grid; grid-template-columns: 44px 1fr auto; gap: 10px; align-items: center; padding: 10px; border-bottom: 1px solid var(--line-soft); cursor: pointer; }
.log-item .n { color: var(--gray-600); }
.log-item .sc { font-size: 12px; color: var(--gray-400); text-align: right; }
pre.dump { font-size: 12px; white-space: pre-wrap; background: var(--gray-950); border: 1px solid var(--line-soft); padding: 12px; font-family: var(--mono); }
.toolbar { position: sticky; bottom: 0; background: var(--gray-900); border-top: 1px solid var(--gray-700); padding: 10px 12px; display: flex; gap: 8px; justify-content: space-between; margin: 14px -20px -20px; }
@media (max-width: 600px) { h1 { font-size: 22px; } .coord { font-size: 26px; } .rung { grid-template-columns: 30px 1fr; } .rung .pct { grid-column: 2; } .top { padding: 12px 14px; } .nav a { padding: 6px 7px; font-size: 10px; } }
@media print { .top, .foot, .toolbar, .nav { display: none !important; } body, .sheet, .card, pre.dump { background: #fff !important; color: #000 !important; } .sheet h2, .sheet h3, h1, h2, h3 { color: #000 !important; } }