/* =============================================================================
   Hospital Referral Module — Minimal Telehealth Design
   Palette: White #ffffff · Blue #2563eb · Gray #f1f5f9 · Text #0f172a
   ============================================================================= */

:root {
  --blue:        #2563eb;
  --blue-light:  #eff6ff;
  --blue-mid:    #bfdbfe;
  --blue-dark:   #1d4ed8;
  --red:         #ef4444;
  --red-light:   #fef2f2;
  --green:       #16a34a;
  --green-light: #f0fdf4;
  --text:        #0f172a;
  --text-sub:    #64748b;
  --border:      #e2e8f0;
  --bg:          #f8fafc;
  --white:       #ffffff;
  --radius:      16px;
  --radius-sm:   10px;
  --shadow:      0 4px 24px rgba(15,23,42,.08);
  --shadow-sm:   0 1px 4px rgba(15,23,42,.06);
}

/* ── Overlay ─────────────────────────────────────────────────────────────────── */
#referralOverlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 10500;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}
#referralOverlay.active { display: flex; }

/* ── Modal shell ─────────────────────────────────────────────────────────────── */
.ref-modal {
  background: var(--white);
  border-radius: 20px 20px 0 0;
  width: 100%;
  max-width: 100%;
  /* Fill from drag handle to bottom — no grey gap */
  height: 94vh;
  max-height: 94vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 -2px 20px rgba(15,23,42,.12);
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  animation: sheetUp .28s cubic-bezier(.32,1.2,.58,1);
}

/* Drag handle */
.ref-modal::before {
  content: '';
  display: block;
  width: 36px; height: 4px;
  background: #cbd5e1;
  border-radius: 2px;
  margin: 10px auto 6px;
  flex-shrink: 0;
}

@keyframes sheetUp {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

/* ── Header ──────────────────────────────────────────────────────────────────── */
.ref-header {
  padding: 14px 20px 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: relative;
}

.ref-header-icon {
  width: 40px; height: 40px;
  background: var(--blue-light);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.ref-header-text h2 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 2px;
  line-height: 1.3;
}

.ref-header-text p {
  font-size: 11px;
  color: var(--text-sub);
  margin: 0;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
}

.ref-header-pulse {
  position: absolute;
  right: 20px; top: 50%;
  transform: translateY(-50%);
  width: 8px; height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0   rgba(34,197,94,.5); }
  50%      { box-shadow: 0 0 0 6px rgba(34,197,94,0);  }
}

/* ── Steps bar ───────────────────────────────────────────────────────────────── */
.ref-steps {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  gap: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.ref-step {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-weight: 600;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.ref-step.active { color: var(--blue); }
.ref-step.done   { color: var(--green); }
.ref-step-num {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #e2e8f0;
  color: #94a3b8;
  font-size: 9px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.ref-step.active .ref-step-num { background: var(--blue); color: #fff; }
.ref-step.done   .ref-step-num { background: var(--green); color: #fff; }
.ref-step-divider {
  flex: 0 0 14px; height: 1px;
  background: #e2e8f0;
  margin: 0 2px; align-self: center;
}

/* ── Scrollable body ─────────────────────────────────────────────────────────── */
.ref-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 18px 20px 10px;
}

/* ── Notice ──────────────────────────────────────────────────────────────────── */
.ref-notice {
  background: var(--red-light);
  border: 1px solid #fecaca;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 14px;
  font-size: 13px;
  color: #374151;
  line-height: 1.6;
}
.ref-notice .highlight { color: var(--red); font-weight: 600; }

/* ── Location status ─────────────────────────────────────────────────────────── */
.ref-location-status {
  display: none;
  background: var(--blue-light);
  border: 1px solid var(--blue-mid);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--blue-dark);
  align-items: center;
  gap: 10px;
  font-weight: 500;
}
.ref-location-status.show { display: flex; }

.ref-spinner {
  width: 18px; height: 18px;
  border: 2.5px solid var(--blue-mid);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Error ───────────────────────────────────────────────────────────────────── */
.ref-error {
  display: none;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  margin-bottom: 14px;
  font-size: 12.5px;
  color: #78350f;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.55;
}
.ref-error.show { display: flex; }
.ref-error-icon { flex-shrink: 0; font-size: 14px; margin-top: 1px; }

/* ── Hospital card ───────────────────────────────────────────────────────────── */
.ref-hospital-card {
  display: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}
.ref-hospital-card.show { display: block; }

.ref-hospital-card-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
}
.ref-hospital-card-header .hc-icon {
  width: 36px; height: 36px;
  background: var(--blue-light);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.ref-hospital-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 2px;
  line-height: 1.3;
  word-break: break-word;
}
.ref-hospital-type {
  font-size: 11px;
  color: var(--text-sub);
  font-weight: 500;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
}

/* ── Prev/Next nav ───────────────────────────────────────────────────────────── */
.ref-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  gap: 8px;
}
.ref-nav-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  min-height: 32px;
  transition: all .15s;
  touch-action: manipulation;
}
.ref-nav-btn:hover:not(:disabled) { background: var(--blue-light); border-color: var(--blue-mid); }
.ref-nav-btn:disabled { opacity: .35; cursor: not-allowed; color: #94a3b8; }
.ref-nav-label {
  font-size: 12px; font-weight: 600;
  color: var(--text-sub);
  min-width: 40px; text-align: center;
}

/* ── Card body ───────────────────────────────────────────────────────────────── */
.ref-hospital-card-body { padding: 12px 14px; }

.ref-hospital-address {
  font-size: 12.5px;
  color: var(--text-sub);
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 7px;
  line-height: 1.5;
}
.ref-hospital-address i { color: #94a3b8; margin-top: 2px; flex-shrink: 0; }

/* ── Stats ───────────────────────────────────────────────────────────────────── */
.ref-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.ref-stat {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  text-align: center;
}
.ref-stat-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
  line-height: 1.2;
}
.ref-stat-label {
  font-size: 10px;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: .4px;
  font-weight: 500;
}
.ref-stat.distance .ref-stat-value { color: var(--blue); }
.ref-stat.time     .ref-stat-value { color: #7c3aed; }

/* ── Leaflet map ─────────────────────────────────────────────────────────────── */
.ref-map-wrapper {
  border-top: 1px solid var(--border);
}
#refMap {
  height: 175px;
  width: 100%;
  background: var(--bg);
}
.ref-map-legend {
  display: flex;
  gap: 14px;
  justify-content: flex-end;
  padding: 6px 12px;
  background: var(--white);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-sub);
  font-weight: 500;
  flex-wrap: wrap;
}
.ref-map-legend-item { display: flex; align-items: center; gap: 5px; }
.ref-legend-dot {
  width: 9px; height: 9px;
  border-radius: 50%; flex-shrink: 0;
}
.ref-legend-dot.user     { background: var(--blue); }
.ref-legend-dot.hospital { background: var(--red); }

/* ── Cache badge ─────────────────────────────────────────────────────────────── */
.ref-cache-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: #fef9c3;
  color: #854d0e;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 20px;
  border: 1px solid #fde68a;
}

/* ── Manual form ─────────────────────────────────────────────────────────────── */
.ref-manual-form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 14px;
}
.ref-manual-title {
  font-size: 13px; font-weight: 700;
  color: var(--text); margin-bottom: 4px;
}
.ref-manual-hint {
  font-size: 12px; color: var(--text-sub);
  margin-bottom: 10px; line-height: 1.5;
}
.ref-manual-hint a { color: var(--blue); }
.ref-manual-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px; margin-bottom: 10px;
}
.ref-manual-field label {
  display: block;
  font-size: 11px; font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 4px;
  text-transform: uppercase; letter-spacing: .3px;
}
.ref-manual-input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px; color: var(--text);
  background: var(--white);
  outline: none;
  transition: border-color .15s;
  -moz-appearance: textfield;
}
.ref-manual-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,.10); }
.ref-manual-input.is-invalid { border-color: var(--red); }
.ref-manual-input.is-invalid + .invalid-feedback { display: block; }
.invalid-feedback { display: none; font-size: 11px; color: var(--red); margin-top: 3px; }

.btn-manual-submit {
  width: 100%;
  padding: 9px 16px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 13px; font-weight: 600;
  cursor: pointer; min-height: 40px;
  transition: background .15s;
  touch-action: manipulation;
}
.btn-manual-submit:hover { background: var(--blue-dark); }

/* ── Footer ──────────────────────────────────────────────────────────────────── */
.ref-footer {
  padding: 12px 20px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  background: var(--white);
}

.btn-go-hospital {
  width: 100%;
  padding: 13px 20px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 14px; font-weight: 700;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: background .15s, transform .1s;
  min-height: 48px;
  touch-action: manipulation;
  letter-spacing: .1px;
}
.btn-go-hospital:hover:not(:disabled) { background: var(--blue-dark); }
.btn-go-hospital:active:not(:disabled){ transform: scale(.98); }
.btn-go-hospital:disabled {
  background: #e2e8f0; color: #94a3b8;
  cursor: not-allowed;
}

.btn-retry {
  width: 100%;
  padding: 10px 20px;
  background: var(--white);
  color: var(--blue);
  border: 1px solid var(--blue-mid);
  border-radius: 10px;
  font-size: 13px; font-weight: 600;
  cursor: pointer; min-height: 42px;
  display: flex; align-items: center; justify-content: center; gap: 7px;
  transition: background .15s;
  touch-action: manipulation;
}
.btn-retry:hover { background: var(--blue-light); }

.ref-footer-row { display: flex; gap: 8px; }
.btn-close-ref {
  flex: 1; min-height: 40px;
  padding: 9px 20px;
  background: var(--white);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  transition: background .15s;
  touch-action: manipulation;
}
.btn-close-ref:hover { background: var(--bg); }

/* ── Maps hint ───────────────────────────────────────────────────────────────── */
.ref-maps-hint {
  text-align: center;
  font-size: 11px;
  color: var(--text-sub);
  margin: 0; line-height: 1.5;
}

/* ── Disclaimer ──────────────────────────────────────────────────────────────── */
.ref-disclaimer {
  text-align: center;
  font-size: 11px;
  color: #94a3b8;
  padding: 0 20px 10px;
  line-height: 1.6;
  background: var(--white);
}

/* =============================================================================
   TABLET / DESKTOP ≥ 560px — centered card
   ============================================================================= */
@media (min-width: 560px) {
  #referralOverlay {
    align-items: center;
    padding: 16px;
    background: rgba(15,23,42,.55);
  }
  .ref-modal {
    border-radius: var(--radius);
    max-width: 500px;
    height: auto;
    max-height: 90vh;
    animation: cardIn .26s cubic-bezier(.32,1.2,.58,1);
  }
  .ref-modal::before { display: none; }
  @keyframes cardIn {
    from { transform: translateY(20px) scale(.97); opacity: 0; }
    to   { transform: translateY(0)    scale(1);   opacity: 1; }
  }
  #refMap { height: 190px; }
}

/* =============================================================================
   SMALL PHONES ≤ 360px
   ============================================================================= */
@media (max-width: 360px) {
  .ref-header-text h2 { font-size: 13px; }
  .ref-notice         { font-size: 12px; }
  .ref-manual-inputs  { grid-template-columns: 1fr; }
  #refMap             { height: 150px; }
}

/* =============================================================================
   LANDSCAPE SHORT VIEWPORT
   ============================================================================= */
@media (max-height: 600px) and (orientation: landscape) {
  .ref-modal    { max-height: 98vh; }
  .ref-header   { padding: 8px 16px; }
  .ref-body     { padding: 12px 16px 8px; }
  .ref-notice   { padding: 9px 12px; margin-bottom: 10px; }
  #refMap       { height: 120px; }
  .ref-footer   { padding: 8px 16px 10px; }
}