/* ============================================================
   NALAHERBAL — Design System
   Warna: sage green, cream, earthy brown
   Font: Inter (Google Fonts)
   ============================================================ */

:root {
  --sage: #7A9A7E;
  --sage-dark: #5C7A5E;
  --sage-light: #A8C0A8;
  --cream: #F5EFE6;
  --cream-dark: #E8DFD0;
  --brown: #8B6F47;
  --brown-dark: #5C4A2E;
  --text: #2D2A24;
  --text-soft: #6B6558;
  --bg: #FAF6F0;
  --card: #FFFFFF;
  --border: #E5DED2;
  --danger: #C9524A;
  --danger-soft: #FBEBEA;
  --warn: #D89B4F;
  --warn-soft: #FDF6E9;
  --success: #7A9A7E;
  --success-soft: #EEF4EE;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(139, 111, 71, 0.08);
  --shadow-hover: 0 6px 24px rgba(139, 111, 71, 0.14);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============ HEADER ============ */
header {
  background: var(--cream);
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(245, 239, 230, 0.95);
}

.header-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
}

.header-logo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.header-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--brown-dark);
  letter-spacing: -0.02em;
}

/* ============ MAIN ============ */
main {
  flex: 1;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 20px 40px;
}

/* ============ HERO ============ */
.hero {
  text-align: center;
  margin-bottom: 32px;
}

.hero-logo {
  width: 120px;
  height: 120px;
  margin: 0 auto 16px;
  display: block;
  border-radius: 50%;
}

.hero h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--brown-dark);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.hero p {
  color: var(--text-soft);
  font-size: 15px;
  max-width: 480px;
  margin: 0 auto;
}

/* ============ PINTU MASUK (Home) ============ */
.doors {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 28px;
}

.door {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s;
  box-shadow: var(--shadow);
}

.door:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--sage-light);
}

.door-icon {
  font-size: 32px;
  flex-shrink: 0;
  width: 48px;
  text-align: center;
}

.door-text h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--brown-dark);
  margin-bottom: 2px;
}

.door-text p {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.4;
}

/* ============ SECTION ============ */
.section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--brown-dark);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title .count {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-soft);
  background: var(--cream);
  padding: 2px 10px;
  border-radius: 12px;
}

/* ============ KATEGORI CHIP ============ */
.chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 16px;
  scrollbar-width: none;
}

.chips::-webkit-scrollbar { display: none; }

.chip {
  flex-shrink: 0;
  padding: 6px 14px;
  border-radius: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-soft);
  cursor: pointer;
  transition: all 0.15s;
  font-weight: 500;
}

.chip.active {
  background: var(--sage);
  border-color: var(--sage);
  color: white;
}

.chip:hover:not(.active) {
  border-color: var(--sage-light);
  color: var(--sage-dark);
}

/* ============ KARTU PENYAKIT ============ */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  color: var(--text);
  display: block;
}

.card:hover {
  border-color: var(--sage-light);
  box-shadow: var(--shadow);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--brown-dark);
  margin-bottom: 4px;
}

.card-sub {
  font-size: 13px;
  color: var(--text-soft);
  font-style: italic;
  margin-bottom: 6px;
}

.card-desc {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.5;
}

.card-tags {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.tag {
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 12px;
  background: var(--cream);
  color: var(--text-soft);
  font-weight: 500;
}

.tag.ringan { background: var(--success-soft); color: var(--sage-dark); }
.tag.sedang { background: var(--warn-soft); color: #8B6F2E; }
.tag.berat { background: var(--danger-soft); color: var(--danger); }
.tag.kronis { background: #EFE4F0; color: #6B4A7A; }

/* ============ GEJALA CHECKBOX ============ */
.symptom {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.symptom:hover {
  border-color: var(--sage-light);
}

.symptom input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--sage);
  flex-shrink: 0;
}

.symptom.checked {
  background: var(--success-soft);
  border-color: var(--sage);
}

.symptom-body { flex: 1; }

.symptom-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--brown-dark);
  margin-bottom: 2px;
}

.symptom-desc {
  font-size: 13px;
  color: var(--text-soft);
}

/* ============ INPUT PARAMETER ============ */
.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--brown-dark);
  margin-bottom: 6px;
}

.field-hint {
  font-size: 12px;
  color: var(--text-soft);
  margin-bottom: 8px;
}

.field input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-family: inherit;
  background: var(--card);
  color: var(--text);
  transition: border-color 0.15s;
}

.field input:focus {
  outline: none;
  border-color: var(--sage);
  box-shadow: 0 0 0 3px rgba(122, 154, 126, 0.12);
}

.field-unit {
  font-size: 12px;
  color: var(--text-soft);
  margin-left: 6px;
}

/* ============ TOMBOL ============ */
.btn {
  display: inline-block;
  width: 100%;
  padding: 14px 20px;
  background: var(--sage);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s;
  text-align: center;
  text-decoration: none;
  margin-top: 8px;
}

.btn:hover {
  background: var(--sage-dark);
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  color: var(--sage-dark);
  border: 1px solid var(--sage);
}

.btn-secondary:hover {
  background: var(--sage);
  color: white;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-soft);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 16px;
  padding: 6px 0;
}

.btn-back:hover { color: var(--sage-dark); }

/* ============ RESULT ============ */
.result-score {
  text-align: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  margin-bottom: 20px;
}

.score-number {
  font-size: 48px;
  font-weight: 700;
  color: var(--sage-dark);
  line-height: 1;
  margin-bottom: 6px;
}

.score-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--brown-dark);
  margin-bottom: 4px;
  text-transform: capitalize;
}

.score-desc {
  font-size: 13px;
  color: var(--text-soft);
}

.score-bar {
  height: 6px;
  background: var(--cream);
  border-radius: 3px;
  margin-top: 16px;
  overflow: hidden;
}

.score-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--sage-light), var(--sage));
  transition: width 1s ease-out;
  border-radius: 3px;
}

/* ============ ALERT ============ */
.alert {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  font-size: 14px;
  line-height: 1.5;
}

.alert-danger {
  background: var(--danger-soft);
  border-left: 4px solid var(--danger);
  color: #6B2622;
}

.alert-warn {
  background: var(--warn-soft);
  border-left: 4px solid var(--warn);
  color: #6B4A1E;
}

.alert-info {
  background: var(--success-soft);
  border-left: 4px solid var(--sage);
  color: var(--brown-dark);
}

.alert-title {
  font-weight: 700;
  margin-bottom: 4px;
}

/* ============ HERBAL CARD ============ */
.herb {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}

.herb-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
  gap: 10px;
}

.herb-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--brown-dark);
  margin-bottom: 2px;
}

.herb-latin {
  font-size: 13px;
  font-style: italic;
  color: var(--text-soft);
}

.herb-priority {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--sage);
  color: white;
  font-weight: 600;
  white-space: nowrap;
}

.herb-priority.secondary {
  background: var(--cream-dark);
  color: var(--text-soft);
}

.herb-row {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.55;
}

.herb-row strong {
  color: var(--brown-dark);
  display: block;
  margin-bottom: 2px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.herb-row span {
  color: var(--text-soft);
}

.herb-warn {
  background: var(--warn-soft);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-top: 10px;
  font-size: 13px;
  color: #6B4A1E;
  line-height: 1.5;
}

.herb-safe {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  margin-top: 8px;
  font-weight: 600;
}

.safe-aman { background: var(--success-soft); color: var(--sage-dark); }
.safe-hati_hati { background: var(--warn-soft); color: #8B6F2E; }
.safe-konsultasi_dulu { background: var(--danger-soft); color: var(--danger); }

/* ============ DISCLAIMER ============ */
.disclaimer {
  background: var(--cream);
  border-radius: var(--radius);
  padding: 18px;
  margin-top: 28px;
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.65;
}

.disclaimer strong {
  display: block;
  color: var(--brown-dark);
  margin-bottom: 8px;
  font-size: 14px;
}

.sources {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-soft);
}

.sources a {
  color: var(--sage-dark);
  text-decoration: none;
}

.sources a:hover { text-decoration: underline; }

/* ============ FOOTER ============ */
footer {
  background: var(--cream);
  border-top: 1px solid var(--border);
  padding: 20px;
  text-align: center;
  font-size: 12px;
  color: var(--text-soft);
  margin-top: auto;
}

footer a {
  color: var(--sage-dark);
  text-decoration: none;
}

/* ============ LOADING ============ */
.loading {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-soft);
  font-size: 14px;
}

.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--cream-dark);
  border-top-color: var(--sage);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 12px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============ RESPONSIVE ============ */
@media (min-width: 640px) {
  .doors { grid-template-columns: 1fr 1fr; }
  .hero-logo { width: 140px; height: 140px; }
  .hero h1 { font-size: 30px; }
}