/* PHYS-AI — Physics Assessment and Interpretation
   Gaya visual bersama: kartu, palet biru-teal, mobile-first, responsif. */

:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-alt: #eef3fa;
  --border: #dbe4f0;
  --text: #182635;
  --text-muted: #5b6b80;
  --primary: #1c5cae;
  --primary-dark: #123f79;
  --primary-light: #e8f0fc;
  --accent: #0e9384;
  --warn: #b5750b;
  --warn-bg: #fdf3e0;
  --danger: #c22b3f;
  --danger-bg: #fbe9ec;
  --success: #1a8a4c;
  --success-bg: #e7f6ed;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 35, 60, 0.06), 0 6px 20px rgba(15, 35, 60, 0.06);
  --max-width: 880px;
  color-scheme: light;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--primary); }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

.topbar {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 18px 0;
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.3px;
}

.brand-sub {
  font-size: 0.8rem;
  opacity: 0.85;
}

.main {
  flex: 1;
  width: 100%;
  padding: 24px 0 60px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin-bottom: 18px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.05rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.field input[type="text"],
.field input[type="email"],
.field input[type="password"],
.field input[type="number"],
.field select,
.field textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
  background: #fff;
  color: var(--text);
  font-family: inherit;
}

.field textarea { resize: vertical; min-height: 70px; }

.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: var(--primary);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.05s ease, filter 0.15s ease;
}

.btn:hover { filter: brightness(1.06); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  background: var(--surface);
  color: var(--primary-dark);
  border-color: var(--border);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-danger { background: var(--danger); }
.btn-block { width: 100%; }
.btn-sm { padding: 7px 12px; font-size: 0.82rem; }

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.choice-tile {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 10px;
  cursor: pointer;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: #fff;
  transition: border-color 0.12s ease, background 0.12s ease;
}

.choice-tile:hover { border-color: var(--primary); }

.choice-tile.selected {
  border-color: var(--primary);
  background: var(--primary-light);
}

.choice-tile input { margin-top: 3px; }

.choice-label {
  font-weight: 700;
  color: var(--primary-dark);
  min-width: 18px;
}

.cri-scale {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.cri-btn {
  flex: 1;
  min-width: 56px;
  padding: 12px 4px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  font-weight: 700;
  color: var(--text-muted);
}

.cri-btn small { display: block; font-weight: 500; font-size: 0.68rem; margin-top: 2px; }

.cri-btn.selected {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warn { background: var(--warn-bg); color: var(--warn); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-neutral { background: var(--surface-alt); color: var(--text-muted); }
.badge-primary { background: var(--primary-light); color: var(--primary-dark); }

.progress-track {
  width: 100%;
  height: 8px;
  background: var(--surface-alt);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 18px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  transition: width 0.25s ease;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

table.data-table th, table.data-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

table.data-table th {
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.table-wrap { overflow-x: auto; }

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
  overflow-x: auto;
}

.tab-btn {
  padding: 10px 16px;
  border: none;
  background: transparent;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.tab-btn.active {
  color: var(--primary-dark);
  border-bottom-color: var(--primary);
}

.muted { color: var(--text-muted); }
.small { font-size: 0.82rem; }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

.hero {
  text-align: center;
  padding: 30px 0 10px;
}

.hero h1 {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.role-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}

@media (max-width: 560px) {
  .role-grid { grid-template-columns: 1fr; }
}

.role-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px 20px;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  display: block;
}

.role-card .emoji { font-size: 2.2rem; display: block; margin-bottom: 10px; }
.role-card h3 { margin: 0 0 6px; color: var(--primary-dark); }
.role-card p { margin: 0; color: var(--text-muted); font-size: 0.88rem; }

.alert {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.88rem;
  margin-bottom: 14px;
}

.alert-danger { background: var(--danger-bg); color: var(--danger); }
.alert-success { background: var(--success-bg); color: var(--success); }
.alert-info { background: var(--primary-light); color: var(--primary-dark); }

.footer-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.78rem;
  padding: 20px 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 6px;
}

.stat-box {
  background: var(--surface-alt);
  border-radius: 12px;
  padding: 14px;
}

.stat-box .num { font-size: 1.5rem; font-weight: 800; color: var(--primary-dark); }
.stat-box .label { font-size: 0.75rem; color: var(--text-muted); }

.bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.bar-label { width: 170px; font-size: 0.82rem; flex-shrink: 0; }
.bar-track { flex: 1; background: var(--surface-alt); border-radius: 999px; height: 14px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--primary); border-radius: 999px; }
.bar-count { width: 34px; text-align: right; font-size: 0.8rem; font-weight: 700; flex-shrink: 0; }

.loading { text-align: center; padding: 30px; color: var(--text-muted); }

.hidden { display: none !important; }