:root {
  /* Four hues from the Science illustration, taken at their deeper (lower-flask)
     end so large UI fills don't vibrate against each other. The bright originals
     stay in the artwork itself. */
  --purple: #8b4fd8;
  --purple-deep: #7038be;
  --purple-soft: #f1e7fd;
  --orange: #c56a0c;
  --orange-deep: #a4560a;
  --orange-soft: #fdf0e2;
  --lime: #5e8f16;
  --lime-deep: #4b7211;
  --lime-soft: #f1fbe0;
  --sky: #2483a6;
  --sky-deep: #1b6883;
  --sky-soft: #e4f6fd;

  --bg: #fffdf7;
  --card: #ffffff;
  --ink: #191919;          /* the artwork's linework is pure black — keep text graphic */
  --ink-soft: #6f6a63;
  --line: #ebe4d8;

  /* semantic aliases so existing rules follow the new palette */
  --accent: var(--purple);
  --accent-dark: var(--purple-deep);
  --accent-soft: var(--purple-soft);
  --coral: var(--orange);
  --coral-soft: var(--orange-soft);
  --sunny: var(--orange);
  --sunny-soft: var(--orange-soft);
  --grape: var(--purple);
  --grape-soft: var(--purple-soft);
  --cyan: var(--sky);
  --cyan-soft: var(--sky-soft);
  --gold: var(--orange-deep);
  --gold-soft: var(--orange-soft);

  --danger: #ce4141;
  --danger-soft: #fbe7e7;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(25, 25, 25, 0.04), 0 6px 18px rgba(25, 25, 25, 0.07);
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
}

.boot { padding: 3rem; text-align: center; color: var(--ink-soft); }

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 15px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- header / nav ---------- */
.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 40;
}
.topbar-inner {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0.7rem 1rem 0;
}
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent-dark);
  white-space: nowrap;
}
.brand .brand-sub {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-top: -2px;
}
.logout-btn {
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.35rem 0.8rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.logout-btn:hover { border-color: var(--ink-soft); color: var(--ink); }

.nav {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  margin-top: 0.55rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.nav::-webkit-scrollbar { display: none; }
.nav a {
  padding: 0.55rem 0.9rem;
  border-radius: 8px 8px 0 0;
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 0.92rem;
  white-space: nowrap;
  border-bottom: 2.5px solid transparent;
}
.nav a:hover { text-decoration: none; color: var(--ink); background: var(--bg); }
.nav a.active {
  color: var(--accent-dark);
  border-bottom-color: var(--accent);
  font-weight: 700;
  background: var(--accent-soft);
}
.brand .brand-sub { color: var(--coral); }

/* ---------- layout ---------- */
.page {
  max-width: 1060px;
  margin: 0 auto;
  padding: 1.4rem 1rem 4rem;
}
.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.1rem;
}
.page-title {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 600;
  color: var(--ink);
}
.page-sub { color: var(--ink-soft); font-size: 0.9rem; margin-top: 0.15rem; }

.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }

/* ---------- cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.2rem;
}
.card + .card { margin-top: 1rem; }
.grid > .card { margin-top: 0; }
.grid + .card { margin-top: 1rem; }
.card-title {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  margin-bottom: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

/* ---------- stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.stat::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: var(--stat-color, var(--accent));
}
.stat-icon {
  width: 34px; height: 34px;
  border-radius: 11px;
  display: grid; place-items: center;
  margin-bottom: 0.5rem;
  color: var(--stat-ink, #fff);
  background: var(--stat-color, var(--accent));
}
.stat-icon svg { width: 19px; height: 19px; }
.stat .stat-value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
}
.stat .stat-label {
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-top: 0.1rem;
}
.stat.stat-warn .stat-value { color: var(--coral); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: none;
  border-radius: 11px;
  padding: 0.58rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 3px 0 rgba(25,25,25,0.10);
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}
.btn:hover { background: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 4px 0 rgba(25,25,25,0.12); }
.btn:active { transform: translateY(0); }
.btn-coral { background: var(--orange); box-shadow: 0 3px 0 rgba(25,25,25,0.10); }
.btn-coral:hover { background: var(--orange-deep); box-shadow: 0 4px 0 rgba(25,25,25,0.12); }
.btn.btn-outline {
  background: #fff;
  border: 2px solid var(--line);
  color: var(--ink);
  font-weight: 600;
  box-shadow: none;
}
.btn.btn-outline:hover { border-color: var(--accent); color: var(--accent-dark); background: var(--accent-soft); box-shadow: none; }
.btn.btn-danger { background: #fff; border: 2px solid var(--line); color: var(--danger); font-weight: 600; box-shadow: none; }
.btn.btn-danger:hover { background: var(--danger-soft); border-color: var(--danger); }
.btn.btn-sm { padding: 0.32rem 0.7rem; font-size: 0.82rem; border-radius: 7px; }

.quick-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 1.2rem; }

/* ---------- tables & lists ---------- */
.table-wrap { overflow-x: auto; margin: 0 -1.2rem; padding: 0 1.2rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th {
  text-align: left;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-soft);
  font-weight: 600;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
td {
  padding: 0.6rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
tr:last-child td { border-bottom: none; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--bg); }
td .sub { color: var(--ink-soft); font-size: 0.82rem; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

.row-actions { display: flex; gap: 0.3rem; justify-content: flex-end; }
.icon-btn {
  background: none;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0.2rem 0.45rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.icon-btn:hover { background: var(--bg); border-color: var(--line); color: var(--ink); }

/* ---------- badges & chips ---------- */
.badge {
  display: inline-block;
  padding: 0.13rem 0.55rem;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}
.badge {
  border: 1.5px solid transparent;
}
.badge-green { background: var(--accent-soft); color: var(--accent-dark); border-color: #a5ebe4; }
.badge-gold { background: var(--sunny-soft); color: #a86a00; border-color: #ffdf99; }
.badge-red { background: var(--coral-soft); color: #d24425; border-color: #ffc4b6; }
.badge-gray { background: #f1ece3; color: var(--ink-soft); border-color: #e4dbcd; }
.badge-cyan { background: var(--cyan-soft); color: #0284c7; border-color: #b6e5fc; }
.badge-grape { background: var(--grape-soft); color: #5b3fd6; border-color: #cfc3ff; }

/* ---------- lab identity ---------- */
.brand-lockup { display: flex; align-items: center; gap: 0.65rem; }
.brand-art-tile {
  width: 54px; height: 54px;
  border-radius: 16px;
  background: var(--sky-soft);
  display: grid; place-items: center;
  flex: none;
}
.brand-art { height: 44px; width: auto; flex: none; display: block; }
.brand-mark { width: 24px; height: 24px; flex: none; }

body {
  background-image:
    radial-gradient(circle at 10% 4%, rgba(159, 230, 255, 0.30), transparent 32%),
    radial-gradient(circle at 92% 10%, rgba(255, 133, 0, 0.10), transparent 28%),
    radial-gradient(circle at 86% 96%, rgba(164, 89, 255, 0.10), transparent 32%);
  background-attachment: fixed;
}

/* hand-drawn doodles echoing the illustration's black linework */
.doodle { position: absolute; color: var(--ink); opacity: 0.85; pointer-events: none; }
.doodle svg { display: block; width: 100%; height: 100%; }

/* ---------- learning profile ---------- */
.profile-empty { text-align: center; padding: 1.4rem 0; }
.profile-empty .empty-mark {
  width: 42px; height: 42px; margin: 0 auto 0.6rem;
  color: var(--accent); opacity: 0.5;
}

.area-row {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  align-items: center;
  gap: 0.7rem;
  padding: 0.32rem 0;
}
@media (max-width: 560px) {
  .area-row { grid-template-columns: 110px 1fr auto; gap: 0.5rem; font-size: 0.88rem; }
}
.area-name { font-size: 0.88rem; color: var(--ink); }
.area-name .construct {
  display: block;
  font-size: 0.7rem;
  color: var(--ink-soft);
}
.area-track {
  position: relative;
  height: 12px;
  background: #f4ede2;
  border-radius: 99px;
  overflow: hidden;
}
.area-fill {
  position: absolute;
  inset: 0 auto 0 0;
  border-radius: 99px;
  background: var(--area-color, var(--accent));
  transition: width 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
/* student bar: same hue, lighter, so colour still codes the area */
.area-fill.student { opacity: 0.42; }
.area-pct {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  min-width: 2.6rem;
  text-align: right;
}
.area-pct .student-pct { color: var(--ink-soft); font-weight: 600; }

.area-dot {
  width: 10px; height: 10px; border-radius: 4px;
  background: var(--area-color, var(--accent));
  display: inline-block;
  margin-right: 0.45rem;
  vertical-align: -1px;
}
.area-row.is-strength .area-name { font-weight: 700; }
.area-row.is-focus .area-name { font-weight: 700; }
.area-row.is-strength::after,
.area-row.is-focus::after { content: none; }

.dual-track { display: grid; gap: 3px; }

.chip-row { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.35rem; }
.area-chip {
  display: inline-flex;
  align-items: center;
  background: color-mix(in srgb, var(--area-color) 14%, #fff);
  border-color: color-mix(in srgb, var(--area-color) 38%, #fff);
  color: color-mix(in srgb, var(--area-color) 72%, #2b2b2b);
  padding: 0.22rem 0.65rem;
}
.area-chip .area-dot { width: 8px; height: 8px; border-radius: 3px; margin-right: 0.4rem; }

.gap-note {
  border-left: 4px solid var(--grape);
  background: var(--grape-soft);
  border-radius: 0 11px 11px 0;
  padding: 0.6rem 0.8rem;
  font-size: 0.87rem;
  margin-bottom: 0.5rem;
}

.legend { display: flex; gap: 1rem; font-size: 0.78rem; color: var(--ink-soft); margin-bottom: 0.7rem; font-weight: 600; }
.legend span { display: inline-flex; align-items: center; gap: 0.35rem; }
.swatch { width: 16px; height: 9px; border-radius: 4px; display: inline-block; background: var(--ink); }
.swatch.parent { background: var(--ink); }
.swatch.student { background: var(--ink); opacity: 0.42; }

.link-box {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0.4rem 0.5rem 0.4rem 0.7rem;
  margin-top: 0.5rem;
}
.link-box input {
  flex: 1;
  border: none;
  background: none;
  font-size: 0.82rem;
  color: var(--ink-soft);
  min-width: 0;
}
.link-box input:focus { outline: none; }

.pending-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0.55rem 0;
  border-top: 1px solid var(--line);
}
.pending-row:first-child { border-top: none; }

/* ---------- entry list (sessions / assessments) ---------- */
.entry {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  margin-bottom: 0.6rem;
  background: #fffdf9;
}
.entry-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.entry-title { font-weight: 600; font-size: 0.92rem; }
.entry-meta { color: var(--ink-soft); font-size: 0.8rem; white-space: nowrap; }
.entry-notes { margin-top: 0.35rem; font-size: 0.88rem; white-space: pre-wrap; }
.entry .row-actions { margin-top: 0.35rem; }

/* ---------- forms ---------- */
.field { margin-bottom: 0.85rem; }
.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 0.25rem;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}
.field textarea { resize: vertical; min-height: 80px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
@media (max-width: 520px) { .field-row { grid-template-columns: 1fr; } }
.field .hint { font-size: 0.75rem; color: var(--ink-soft); margin-top: 0.2rem; }

.search-input {
  width: 100%;
  max-width: 340px;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}
.search-input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }

/* ---------- modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(43, 38, 32, 0.45);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2.5rem 1rem;
  z-index: 100;
  overflow-y: auto;
}
.modal {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
  width: 100%;
  max-width: 540px;
  padding: 1.3rem 1.4rem;
  animation: modal-in 0.15s ease-out;
}
@keyframes modal-in {
  from { transform: translateY(8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.modal h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
  margin-top: 1.1rem;
}
.modal .form-error { color: var(--danger); font-size: 0.85rem; margin-top: 0.6rem; }

/* ---------- toast ---------- */
#toast-root {
  position: fixed;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
}
.toast {
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 1.1rem;
  border-radius: 10px;
  font-size: 0.88rem;
  box-shadow: var(--shadow);
  animation: toast-in 0.2s ease-out;
}
.toast.toast-error { background: var(--danger); }
@keyframes toast-in {
  from { transform: translateY(8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ---------- login ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background:
    radial-gradient(circle at 14% 10%, rgba(159, 230, 255, 0.55), transparent 40%),
    radial-gradient(circle at 88% 18%, rgba(255, 133, 0, 0.14), transparent 36%),
    radial-gradient(circle at 80% 88%, rgba(164, 89, 255, 0.16), transparent 40%),
    var(--bg);
}
.login-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 12px 40px rgba(31, 45, 58, 0.13);
  padding: 2.4rem 2rem 2.2rem;
  width: 100%;
  max-width: 390px;
  text-align: center;
  position: relative;
}
.login-art { width: 150px; height: auto; display: block; margin: 0 auto 1.1rem; }
.login-card h1 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--accent-dark);
}
.login-card .login-sub {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  margin: 0.2rem 0 1.4rem;
}
.login-card input {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 1rem;
  text-align: center;
}
.login-card input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.login-card .btn { width: 100%; justify-content: center; margin-top: 0.8rem; padding: 0.7rem; font-size: 1rem; }
.login-error { color: var(--danger); font-size: 0.85rem; margin-top: 0.7rem; min-height: 1.2em; }

/* ---------- misc ---------- */
.empty {
  color: var(--ink-soft);
  font-size: 0.9rem;
  padding: 1.2rem 0;
  text-align: center;
}
.detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.1rem;
}
.detail-head .crumbs { font-size: 0.82rem; color: var(--ink-soft); margin-bottom: 0.2rem; }
.detail-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 0.3rem 1rem; font-size: 0.92rem; }
.kv dt { color: var(--ink-soft); font-size: 0.85rem; white-space: nowrap; }
.kv dd { min-width: 0; overflow-wrap: anywhere; }
.assessment-box {
  width: 100%;
  min-height: 110px;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 0.92rem;
  line-height: 1.5;
}
.assessment-box:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.balance-line { font-size: 0.95rem; margin-top: 0.4rem; }
.balance-line strong { font-family: var(--font-display); font-size: 1.2rem; }