/* ── RESET & BASE ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --navy:        #1E3A5F;
  --navy-light:  #2C5282;
  --coral:       #F97066;
  --coral-dark:  #E85D52;
  --bg:          #F8FAFC;
  --bg-card:     #FFFFFF;
  --text:        #1E293B;
  --text-muted:  #64748B;
  --border:      #E2E8F0;
  --success:     #10B981;
  --warning:     #F59E0B;
  --danger:      #EF4444;
  --radius:      12px;
  --radius-sm:   8px;
  --shadow:      0 2px 8px rgba(0,0,0,0.08);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.12);
  --font:        'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  font-family: var(--font);
  font-size: 16px;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  max-width: 480px;
  margin: 0 auto;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.hidden { display: none !important; }

/* ── HEADER ── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--navy);
  color: white;
  flex-shrink: 0;
  box-shadow: var(--shadow);
}

.app-logo {
  font-size: 22px;
  font-weight: 700;
  color: white;
  letter-spacing: -0.5px;
}

.logo-accent { color: var(--coral); }

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 20px;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: opacity 0.2s;
}

.header-icon-btn:hover { opacity: 0.8; }

.btn-upgrade {
  background: var(--coral);
  color: white;
  border: none;
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-upgrade:hover { background: var(--coral-dark); }

.free-counter {
  font-size: 12px;
  color: rgba(255,255,255,0.8);
}

/* ── FREE TIER PROGRESS BAR ── */
.free-progress-wrap {
  background: var(--navy);
  padding: 0 16px 10px;
  flex-shrink: 0;
}

.free-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 4px;
}

.free-progress-track {
  height: 4px;
  background: rgba(255,255,255,0.2);
  border-radius: 2px;
  overflow: hidden;
}

.free-progress-bar {
  height: 100%;
  background: var(--coral);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* ── MAIN CONTENT ── */
.main-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding-bottom: 80px;
  -webkit-overflow-scrolling: touch;
}

.screen { min-height: 100%; }

/* ── BOTTOM NAVIGATION ── */
.bottom-nav {
  display: flex;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom);
}

.nav-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 4px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  transition: color 0.2s;
  gap: 2px;
}

.nav-btn.active { color: var(--navy); }

.nav-btn.active .nav-label { color: var(--navy); font-weight: 600; }

.nav-icon { font-size: 22px; }

.nav-label {
  font-size: 11px;
  font-weight: 500;
  color: inherit;
}
/* ── AUTH SCREEN ── */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: var(--bg);
}

.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo-text {
  font-size: 42px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -1px;
}

.auth-tagline {
  font-size: 16px;
  color: var(--text-muted);
  margin-top: 8px;
  font-style: italic;
}

.auth-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-md);
}

.auth-error {
  background: #FEF2F2;
  color: var(--danger);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 14px;
  margin-bottom: 12px;
  border: 1px solid #FECACA;
}

.auth-divider {
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  margin: 12px 0;
  position: relative;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 42%;
  height: 1px;
  background: var(--border);
}

.auth-divider::before { left: 0; }
.auth-divider::after { right: 0; }

.auth-privacy {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 16px;
}

/* ── FORM FIELDS ── */
.field-group {
  margin-bottom: 16px;
}

.field-label {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.field-input {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  transition: border-color 0.2s;
  outline: none;
  appearance: none;
}

.field-input:focus {
  border-color: var(--navy);
  background: white;
}

.field-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
  display: block;
}

textarea.field-input {
  resize: vertical;
  min-height: 80px;
}

select.field-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

.severity-slider {
  width: 100%;
  margin: 8px 0;
  accent-color: var(--coral);
}

.severity-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--coral);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px 20px;
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  width: 100%;
}

.btn-primary:hover { background: var(--coral-dark); }
.btn-primary:active { transform: scale(0.98); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: white;
  color: var(--navy);
  border: 1.5px solid var(--navy);
  border-radius: var(--radius-sm);
  padding: 13px 20px;
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.2s;
  width: 100%;
}

.btn-secondary:hover { background: var(--bg); }

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: white;
  color: var(--text);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 20px;
  font-size: 15px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  width: 100%;
  transition: background 0.2s;
}

.btn-google:hover { background: var(--bg); }

.btn-text {
  background: none;
  border: none;
  color: var(--coral);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  font-family: var(--font);
}

/* ── TODAY SCREEN ── */
.today-date {
  padding: 16px 16px 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
}

.quick-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 8px 16px 16px;
}

.quick-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 8px;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: var(--font);
}

.quick-action-btn:hover {
  border-color: var(--coral);
  box-shadow: var(--shadow);
}

.quick-action-icon { font-size: 28px; }

.quick-action-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-align: center;
}
/* ── SECTION CARDS ── */
.section-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 16px;
  margin: 0 16px 16px;
  box-shadow: var(--shadow);
}

.section-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.section-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
}

.section-card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 12px;
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  padding: 24px 0;
  line-height: 1.5;
}

/* ── TAB CONTENT ── */
.tab-content {
  padding-top: 8px;
}

.tab-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px 8px;
}

.tab-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
}

/* ── HISTORY FILTERS ── */
.history-filters {
  display: flex;
  gap: 8px;
  padding: 8px 16px 16px;
  overflow-x: auto;
}

.filter-btn {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  font-family: var(--font);
  transition: all 0.2s;
  flex-shrink: 0;
}

.filter-btn.active {
  background: var(--navy);
  border-color: var(--navy);
  color: white;
}

/* ── MEDICATION ITEMS ── */
.med-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  margin: 0 16px 10px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--coral);
}

.med-item-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.med-item-info { flex: 1; }

.med-item-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}

.med-item-detail {
  font-size: 13px;
  color: var(--text-muted);
}

.med-item-actions {
  display: flex;
  gap: 8px;
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

.btn-icon:hover { background: var(--bg); }

/* ── SYMPTOM ITEMS ── */
.symptom-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  margin: 0 16px 10px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--warning);
}

.symptom-severity-badge {
  background: var(--warning);
  color: white;
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

/* ── VITALS ITEMS ── */
.vitals-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 14px 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  margin: 0 16px 10px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--success);
}

.vital-reading {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.vital-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.vital-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
}

.vital-unit {
  font-size: 11px;
  color: var(--text-muted);
}

/* ── HISTORY ITEMS ── */
.history-item {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  margin: 0 16px 10px;
  box-shadow: var(--shadow);
}

.history-item-icon {
  font-size: 22px;
  flex-shrink: 0;
}

.history-item-info { flex: 1; }

.history-item-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.history-item-time {
  font-size: 12px;
  color: var(--text-muted);
}

/* ── DOCTOR ITEMS ── */
.doctor-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  margin: 0 16px 10px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--navy);
}

.doctor-item-info { flex: 1; }

.doctor-item-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}

.doctor-item-detail {
  font-size: 13px;
  color: var(--text-muted);
}

/* ── APPOINTMENT ITEMS ── */
.appointment-item {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  margin: 0 16px 10px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--coral);
}

.appointment-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  color: white;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  min-width: 52px;
  flex-shrink: 0;
}

.appointment-month {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.appointment-day {
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}

.appointment-info { flex: 1; }

.appointment-doctor {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}

.appointment-detail {
  font-size: 13px;
  color: var(--text-muted);
}
/* ── ACCOUNT SCREEN ── */
.plan-badge {
  display: inline-block;
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}

.plan-badge.free {
  background: #F1F5F9;
  color: var(--text-muted);
}

.plan-badge.premium {
  background: var(--coral);
  color: white;
}

.account-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.account-email {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.upgrade-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.plan-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.plan-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s;
}

.plan-option:has(input:checked) {
  border-color: var(--coral);
  background: #FFF5F5;
}

.plan-option input { accent-color: var(--coral); }

.plan-option-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex: 1;
}

.plan-option-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.plan-option-price {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
}

.plan-save {
  background: var(--success);
  color: white;
  border-radius: 10px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
  margin-left: 6px;
}

.trial-notice {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 12px;
  line-height: 1.5;
}

.premium-active {
  font-size: 16px;
  font-weight: 700;
  color: var(--success);
  margin-bottom: 4px;
}

.expiry-label {
  font-size: 13px;
  color: var(--text-muted);
}

.settings-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  font-size: 15px;
  font-family: var(--font);
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: color 0.2s;
}

.settings-row:last-of-type { border-bottom: none; }
.settings-row:hover { color: var(--navy); }
.settings-row.danger { color: var(--danger); }
.settings-row.danger:hover { color: #C53030; }

.footer-note {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── MODALS ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}

.modal {
  background: var(--bg-card);
  border-radius: var(--radius) var(--radius) 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s ease;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-card);
  z-index: 1;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
}

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

.modal-close:hover { background: var(--bg); }

.modal-body {
  padding: 20px;
}

/* ── REPORT OUTPUT ── */
.report-output {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
  border: 1px solid var(--border);
  white-space: pre-wrap;
  margin-top: 12px;
}

/* ── TIME SINCE LAST DOSE ── */
.time-since {
  font-size: 12px;
  color: var(--coral);
  font-weight: 600;
  margin-top: 2px;
}

/* ── DOSE CONFIRM BUTTON ── */
.btn-confirm-dose {
  background: var(--success);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.2s;
  flex-shrink: 0;
}

.btn-confirm-dose:hover { background: #059669; }
.btn-confirm-dose.confirmed {
  background: #D1FAE5;
  color: var(--success);
  cursor: default;
}

/* ── LOADING SPINNER ── */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}

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

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

/* ── SAFE AREA ── */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .bottom-nav {
    padding-bottom: calc(env(safe-area-inset-bottom) + 4px);
  }
}

/* ── DESKTOP VIEW ── */
@media (min-width: 480px) {
  #app {
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
}