:root {
  --navy: #103860;
  --navy-dark: #0b2846;
  --navy-soft: #e8eef5;
  --gold: #c8a048;
  --gold-dark: #a8823a;
  --bg: #f4f6f9;
  --surface: #ffffff;
  --ink: #14202e;
  --ink-2: #4a5566;
  --muted: #7a8494;
  --line: #e1e5ea;
  --hairline: #e1e0d9;
  --focus: #2a78d6;
  --series-1: #2a78d6;
  --series-rest: #c3c2b7;
  --good: #0ca30c;
  --good-text: #006300;
  --bad: #d03b3b;
  --warn-bg: #fff6e0;
  --warn-text: #7a5a10;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 56, 96, 0.06), 0 8px 24px rgba(16, 56, 96, 0.08);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
h1, h2, h3 { margin: 0 0 6px; line-height: 1.25; font-weight: 650; }
h1 { font-size: 1.45rem; color: var(--navy); }
h2 { font-size: 1.15rem; color: var(--navy); }
h3 { font-size: 1rem; color: var(--navy); }
p { margin: 0 0 10px; }
a { color: var(--navy); }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: 0.88rem; margin-top: 8px; }
.eyebrow { display: block; font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gold-dark); font-weight: 650; margin-bottom: 2px; }

/* Header / footer ------------------------------------------------------- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.site-header .brand img { height: 56px; width: auto; display: block; }
.site-header .brand-text { border-left: 1px solid var(--line); padding-left: 20px; }
.site-header .brand-text h1 { margin: 0; }
.site-header .header-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.site-footer {
  margin-top: auto;
  padding: 20px 24px;
  color: var(--muted);
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 24px 20px 40px; }
.wrap.wide { max-width: 1240px; }

/* Cards ----------------------------------------------------------------- */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  margin-bottom: 20px;
}
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.card-head h2, .card-head h3 { margin: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 820px) { .grid-2 { grid-template-columns: 1fr; } }

/* Stepper --------------------------------------------------------------- */
.stepper { list-style: none; display: flex; gap: 8px; padding: 0; margin: 0 0 20px; counter-reset: step; }
.stepper li {
  flex: 1; counter-increment: step; padding: 10px 12px; border-radius: 10px;
  background: var(--surface); color: var(--muted); font-weight: 600; font-size: 0.9rem;
  border: 1px solid var(--line); display: flex; align-items: center; gap: 10px;
}
.stepper li::before {
  content: counter(step); width: 26px; height: 26px; border-radius: 50%; display: inline-grid; place-items: center;
  background: var(--navy-soft); color: var(--navy); font-size: 0.85rem;
}
.stepper li.active { color: var(--navy); border-color: var(--navy); }
.stepper li.active::before { background: var(--navy); color: #fff; }
.stepper li.done::before { content: "✓"; background: var(--gold); color: #fff; }

/* Forms & buttons ------------------------------------------------------- */
label { font-weight: 600; font-size: 0.92rem; }
input[type="text"], input[type="password"], input[type="search"], input:not([type]), select {
  font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); min-width: 0;
}
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid rgba(42, 120, 214, 0.35); outline-offset: 1px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 6px; }
.row input { flex: 1 1 220px; font-size: 1.05rem; letter-spacing: 0.04em; }
.btn {
  font: inherit; font-weight: 600; padding: 10px 18px; border-radius: 10px; border: 1px solid var(--line);
  background: #fff; color: var(--navy); cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; line-height: 1.2;
}
.btn:hover { border-color: var(--navy); }
.btn.primary { background: var(--navy); border-color: var(--navy); color: #fff; }
.btn.primary:hover { background: var(--navy-dark); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--navy-soft); }
.btn.danger { color: var(--bad); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.small { padding: 6px 12px; font-size: 0.88rem; }
fieldset { border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; margin: 12px 0 0; }
legend { font-weight: 600; font-size: 0.9rem; padding: 0 6px; color: var(--ink-2); }
fieldset label, .check { display: flex; gap: 8px; align-items: flex-start; font-weight: 500; margin: 4px 0; }
.check input, fieldset input { margin-top: 4px; }
.message { margin-top: 14px; padding: 12px 14px; border-radius: 10px; font-size: 0.95rem; border: 1px solid var(--line); background: var(--navy-soft); }
.message.error { background: #fdecec; border-color: #f3b8b8; color: #7a1d1d; }
.message.warn { background: var(--warn-bg); border-color: #f0d79a; color: var(--warn-text); }
.message.ok { background: #e9f7e9; border-color: #b9e2b9; color: var(--good-text); }

/* Learner card ---------------------------------------------------------- */
.learner-card { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.learner-card img { width: 96px; height: auto; }
.learner-card .grow { flex: 1 1 240px; }
.learner-card h2 { margin: 0; }
.badge-title { color: var(--gold-dark); font-weight: 700; margin: 4px 0 0; }

/* Editor ---------------------------------------------------------------- */
.editor { display: grid; grid-template-columns: minmax(280px, 540px) minmax(260px, 1fr); gap: 24px; align-items: start; }
@media (max-width: 820px) { .editor { grid-template-columns: 1fr; } }
.canvas-wrap { position: relative; width: 100%; aspect-ratio: 1; border-radius: 12px; overflow: hidden; background: #f4f6f9; border: 1px solid var(--line); }
.canvas-wrap canvas { width: 100%; height: 100%; display: block; touch-action: none; cursor: grab; }
.canvas-wrap canvas:active { cursor: grabbing; }
.canvas-wrap.dragover { outline: 3px dashed var(--gold); outline-offset: -8px; }
.drop-hint {
  position: absolute; inset: 0; display: grid; place-items: center; text-align: center; padding: 24px;
  color: var(--ink-2); font-weight: 600; pointer-events: none;
}
.drop-hint span { background: rgba(255, 255, 255, 0.9); padding: 10px 14px; border-radius: 10px; pointer-events: auto; }
.drop-hint .link { color: var(--navy); text-decoration: underline; cursor: pointer; }
.controls label.slider { display: block; margin-top: 12px; }
.controls input[type="range"] { width: 100%; margin-top: 4px; }
.controls .btn.primary { margin-top: 16px; width: 100%; justify-content: center; font-size: 1.02rem; }

/* Result ---------------------------------------------------------------- */
.result { display: grid; grid-template-columns: minmax(240px, 400px) minmax(260px, 1fr); gap: 24px; align-items: start; }
@media (max-width: 820px) { .result { grid-template-columns: 1fr; } }
.result > div > img { width: 100%; height: auto; display: block; margin-bottom: 12px; }
.result h3 { margin-bottom: 8px; }
.badge-download { display: flex; gap: 14px; align-items: center; margin-top: 18px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); }
.badge-download img { width: 96px; height: auto; flex: 0 0 auto; }
.badge-download p { margin: 0 0 6px; font-weight: 600; }
.badge-download .hint { margin: 6px 0 0; font-weight: 400; }
ol.steps { margin: 0 0 12px; padding-left: 20px; font-size: 0.93rem; color: var(--ink-2); }
ol.steps li { margin-bottom: 4px; }
textarea {
  width: 100%; font: inherit; font-size: 0.93rem; line-height: 1.5; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 10px; resize: vertical; margin: 4px 0 10px; background: #fff; color: var(--ink);
}
#post-style { display: block; margin: 4px 0 12px; }
.badge-download img { background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.share { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }
.confirmation {
  white-space: pre-wrap; font: inherit; background: var(--navy-soft); border-radius: 10px; padding: 14px 16px; margin: 12px 0 8px;
  border-left: 4px solid var(--gold);
}
.actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* Dashboard ------------------------------------------------------------- */
.hero-row { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 16px; margin-bottom: 20px; }
@media (max-width: 900px) { .hero-row { grid-template-columns: 1fr 1fr; } }
.tile { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px; }
.tile .label { display: block; color: var(--ink-2); font-size: 0.88rem; font-weight: 600; }
.tile .value { display: block; font-size: 1.9rem; font-weight: 650; color: var(--navy); line-height: 1.15; margin-top: 4px; }
.tile .sub { display: block; color: var(--muted); font-size: 0.85rem; margin-top: 4px; }
.tile.hero { background: var(--navy); color: #fff; }
.tile.hero .label { color: rgba(255, 255, 255, 0.8); }
.tile.hero .value { color: #fff; font-size: 3.1rem; }
.tile.hero .sub { color: rgba(255, 255, 255, 0.85); }
.meter { height: 8px; border-radius: 4px; background: #cde2fb; overflow: hidden; margin-top: 8px; }
.meter .fill { height: 100%; background: var(--series-1); border-radius: 4px; }
.tile.hero .meter { background: rgba(255, 255, 255, 0.25); }
.tile.hero .meter .fill { background: var(--gold); }

.legend { display: flex; gap: 16px; font-size: 0.85rem; color: var(--ink-2); margin-bottom: 8px; }
.legend span::before { content: ""; display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; background: var(--series-1); }
.legend span.rest::before { background: var(--series-rest); }
.chart svg { width: 100%; height: auto; display: block; font-family: inherit; }
.chart .axis-label, .chart .row-label { fill: var(--ink-2); font-size: 12px; }
.chart .value-label { fill: var(--ink); font-size: 12px; font-variant-numeric: tabular-nums; }
.chart .gridline { stroke: var(--hairline); stroke-width: 1; }
.chart .baseline { stroke: #c3c2b7; stroke-width: 1; }
.chart .hit { fill: transparent; cursor: default; }
.chart .empty { fill: var(--muted); font-size: 13px; }
#tip {
  position: fixed; z-index: 20; pointer-events: none; background: var(--ink); color: #fff; font-size: 0.82rem;
  padding: 6px 10px; border-radius: 8px; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2); max-width: 260px; line-height: 1.35;
}

table.data { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
table.data th, table.data td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.data th { color: var(--ink-2); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data tr.total td { font-weight: 650; }
table.data .cell-meter { min-width: 120px; }
.table-scroll { overflow-x: auto; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px; border-radius: 999px; font-size: 0.82rem; font-weight: 600; }
.pill.done { background: #e9f7e9; color: var(--good-text); }
.pill.left { background: #eef0f3; color: var(--ink-2); }
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.filters input, .filters select { padding: 7px 10px; font-size: 0.9rem; }
.mono { font-variant-numeric: tabular-nums; letter-spacing: 0.03em; }
ol.recent { list-style: none; padding: 0; margin: 0; }
ol.recent li { display: flex; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 0.92rem; }
ol.recent li time { color: var(--muted); font-variant-numeric: tabular-nums; flex: 0 0 auto; }
.upload-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.report-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin: 12px 0; }
.report-grid div { background: var(--bg); border-radius: 10px; padding: 10px 12px; }
.report-grid b { display: block; font-size: 1.3rem; color: var(--navy); }
ul.issues { margin: 6px 0 10px; padding-left: 20px; font-size: 0.9rem; }
ul.issues.errors li { color: #7a1d1d; }
details summary { cursor: pointer; font-weight: 600; color: var(--ink-2); font-size: 0.9rem; }
.refreshing { opacity: 0.6; transition: opacity 0.2s; }
.gate { max-width: 460px; margin: 40px auto; }
.danger-zone { border-top: 1px solid var(--line); margin-top: 16px; padding-top: 12px; }