/* ==============================================
   SaferMed — Design System (Light Mode)
   Editorial · Precision · Medical
   ============================================== */

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

:root {
  /* Palette */
  --bg:           #F7F5F0;
  --surface:      #FFFFFF;
  --surface-alt:  #F0EDE7;
  --border:       #E2DDD6;
  --border-strong:#C8C1B6;

  --primary:      #0B6E6E;
  --primary-50:   #E8F4F4;
  --primary-100:  #C5E4E4;
  --primary-dark: #095858;

  --internato:    #5B4FCA;
  --internato-50: #EDEAFB;
  --internato-100:#C5BFF5;
  --internato-dark:#4840A8;

  --success:      #059669;
  --success-bg:   #ECFDF5;
  --warn:         #D97706;
  --warn-bg:      #FFFBEB;
  --danger:       #DC2626;
  --danger-bg:    #FEF2F2;

  --text-1:       #111827;
  --text-2:       #4B5563;
  --text-3:       #9CA3AF;

  /* Typography */
  --font:        'Plus Jakarta Sans', system-ui, sans-serif;

  /* Spacing */
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   16px;
  --radius-xl:   20px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Base ─────────────────────────────────── */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text-1);
  min-height: 100svh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── App Shell ────────────────────────────── */
.app {
  max-width: 480px;
  margin: 0 auto;
  padding: 0 0 5rem;
  min-height: 100svh;
}

/* ── Header ───────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.125rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.brand-logo { flex-shrink: 0; }

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 1.05rem;
  color: var(--text-1);
  letter-spacing: -0.01em;
}

.brand-name span { font-weight: 500; }

.brand-name strong {
  font-weight: 800;
  color: var(--primary);
}

.brand-sub {
  font-size: 0.7rem;
  color: var(--text-3);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── User Info (header direita) ──────────────── */
.user-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.user-plan-badge {
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 50px;
  padding: 0.2rem 0.5rem;
  text-decoration: none;
  letter-spacing: 0.03em;
  white-space: nowrap;
  transition: opacity 0.15s;
}

.user-plan-badge:hover { opacity: 0.8; }

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--border);
  flex-shrink: 0;
}

.user-logout {
  background: none;
  border: none;
  font-size: 0.9rem;
  color: var(--text-3);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  transition: color 0.15s;
  line-height: 1;
}

.user-logout:hover { color: var(--text-1); }

/* ── Phase Nav (Módulo / Internato) ──────── */
.phase-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 63px;
  z-index: 9;
}

.phase-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.875rem 0.5rem 0.75rem;
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-3);
  cursor: pointer;
  transition: color 0.2s var(--ease);
  position: relative;
  letter-spacing: -0.01em;
}

.phase-btn::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 10%;
  right: 10%;
  height: 2.5px;
  border-radius: 2px 2px 0 0;
  transform: scaleX(0);
  transition: transform 0.22s var(--ease);
}

.phase-btn:nth-child(1)::after { background: var(--primary); }
.phase-btn:nth-child(2)::after { background: var(--internato); }

.phase-btn.active { color: var(--text-1); }
.phase-btn.active::after { transform: scaleX(1); }
.phase-btn:nth-child(1).active { color: var(--primary); }
.phase-btn:nth-child(2).active { color: var(--internato); }

.phase-icon {
  font-size: 1.2rem;
  line-height: 1;
}

.phase-badge {
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 50px;
  padding: 0.15rem 0.5rem;
  letter-spacing: 0.03em;
}

.badge-7 {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid #A7F3D0;
}

.badge-6 {
  background: var(--internato-50);
  color: var(--internato);
  border: 1px solid var(--internato-100);
}

/* ── Phase Panels ─────────────────────────── */
.phase-panel {
  display: none;
  animation: fadeIn 0.2s var(--ease);
}

.phase-panel.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Calculator Cards ─────────────────────── */
.calc-cards {
  display: flex;
  gap: 0.625rem;
  padding: 1rem 1.25rem 0;
}

.calc-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  padding: 0.75rem 0.875rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.18s var(--ease);
  text-align: left;
  font-family: var(--font);
}

.calc-card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

/* Active state — Módulo */
#phase-panel-modulo .calc-card.active {
  background: var(--primary-50);
  border-color: var(--primary);
  box-shadow: 0 2px 12px rgba(11,110,110,0.12);
}

/* Active state — Internato */
#phase-panel-internato .calc-card.active {
  background: var(--internato-50);
  border-color: var(--internato);
  box-shadow: 0 2px 12px rgba(91,79,202,0.12);
}

.calc-card-icon {
  font-size: 1.25rem;
  line-height: 1;
  margin-bottom: 0.2rem;
}

.calc-card-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.01em;
}

.calc-card-hint {
  font-size: 0.65rem;
  color: var(--text-3);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* ── Calc Panels ──────────────────────────── */
.calc-panel {
  display: none;
  padding: 1.25rem 1.25rem 0;
  animation: slideUp 0.22s var(--ease);
}

.calc-panel.active { display: block; }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Section Label ────────────────────────── */
.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.125rem;
  margin-top: 0.25rem;
}

/* ── Fields ───────────────────────────────── */
.fields {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  margin-bottom: 1.25rem;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.field-label-sub {
  font-weight: 500;
  color: var(--text-3);
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.7rem;
}

.field-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0 0.875rem;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.field-row:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-50);
}

#phase-panel-internato .field-row:focus-within {
  border-color: var(--internato);
  box-shadow: 0 0 0 3px var(--internato-50);
}

.field-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--font);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-1);
  padding: 0.7rem 0;
  outline: none;
  width: 100%;
  -moz-appearance: textfield;
}

.field-input::-webkit-outer-spin-button,
.field-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}

.field-input::placeholder {
  font-weight: 400;
  font-size: 1.1rem;
  color: var(--text-3);
}

.field-scale {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-3);
  white-space: nowrap;
  flex-shrink: 0;
}

.field-weight {
  font-size: 0.68rem;
  color: var(--text-3);
  padding-left: 0.125rem;
  font-style: italic;
}

/* ── Result Block ─────────────────────────── */
.result-block {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.375rem;
  margin-bottom: 1rem;
  min-height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s var(--ease);
}

/* Empty state */
.result-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-3);
  font-size: 0.82rem;
  text-align: center;
}

/* Filled result */
.result-filled { width: 100%; }

.result-meta {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-3);
  margin-bottom: 0.2rem;
}

.result-number {
  font-size: 4.25rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 0.625rem;
}

.result-number.color-good   { color: var(--success); }
.result-number.color-warn   { color: var(--warn); }
.result-number.color-danger { color: var(--danger); }
.result-number.color-muted  { color: var(--primary); }
.result-number.color-purple { color: var(--internato); }

.result-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 50px;
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.875rem;
}

.result-badge.good   { background: var(--success-bg); color: var(--success); border: 1px solid #A7F3D0; }
.result-badge.warn   { background: var(--warn-bg);    color: var(--warn);    border: 1px solid #FCD34D; }
.result-badge.danger { background: var(--danger-bg);  color: var(--danger);  border: 1px solid #FECACA; }
.result-badge.purple { background: var(--internato-50); color: var(--internato); border: 1px solid var(--internato-100); }

.result-divider {
  height: 1px;
  background: var(--border);
  margin: 0.75rem 0;
}

.result-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(72px, 1fr));
  gap: 0.5rem;
}

.detail-item {
  text-align: center;
  padding: 0.45rem 0.25rem;
  background: var(--surface-alt);
  border-radius: var(--radius-sm);
}

.detail-label {
  display: block;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-3);
  margin-bottom: 0.15rem;
}

.detail-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-1);
}

/* ── Field highlight (Nota Real na Prova) ─────── */
.field-row-highlight {
  border-color: var(--primary);
  background: var(--primary-50);
}

/* ── CTA: Ir para Exame ───────────────────────── */
.btn-ir-exame {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.875rem 1.25rem;
  margin-bottom: 1rem;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: -0.01em;
  transition: background 0.18s var(--ease), transform 0.15s var(--ease), box-shadow 0.18s var(--ease);
  box-shadow: 0 4px 16px rgba(11,110,110,0.25);
}

.btn-ir-exame:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(11,110,110,0.32);
}

.btn-ir-exame:active {
  transform: translateY(0);
}

/* ── Formula Details ──────────────────────── */
.formula-details {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.formula-details summary {
  padding: 0.625rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-3);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.formula-details summary::-webkit-details-marker { display: none; }

.formula-details summary::before {
  content: '›';
  font-size: 1rem;
  line-height: 1;
  transition: transform 0.18s var(--ease);
}

.formula-details[open] summary::before { transform: rotate(90deg); }

.formula-details code {
  display: block;
  padding: 0.625rem 0.875rem;
  background: var(--surface-alt);
  font-family: 'Courier New', monospace;
  font-size: 0.78rem;
  color: var(--text-2);
  border-top: 1px solid var(--border);
  word-break: break-word;
}

.formula-details small {
  display: block;
  padding: 0.375rem 0.875rem 0.625rem;
  font-size: 0.7rem;
  color: var(--text-3);
  background: var(--surface-alt);
  font-style: italic;
}

/* ── Install Banner ───────────────────────── */
.install-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 0.875rem 1.25rem;
  z-index: 100;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.08);
}

.install-banner-content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.install-banner-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  flex-shrink: 0;
}

.install-banner-content div {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.install-banner-content strong {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-1);
}

.install-banner-content span {
  font-size: 0.75rem;
  color: var(--text-3);
}

.install-banner-actions {
  display: flex;
  gap: 0.5rem;
}

.install-btn-dismiss {
  flex: 1;
  padding: 0.6rem;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
  cursor: pointer;
}

.install-btn-confirm {
  flex: 2;
  padding: 0.6rem;
  background: var(--primary);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  transition: background 0.18s var(--ease);
}

.install-btn-confirm:hover { background: var(--primary-dark); }

/* ── Safe Areas (iPhone notch) ────────────── */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .app {
    padding-bottom: calc(5rem + env(safe-area-inset-bottom));
  }
  .install-banner {
    padding-bottom: calc(0.875rem + env(safe-area-inset-bottom));
  }
}

/* ── Responsive ───────────────────────────── */
@media (min-width: 481px) {
  .app {
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    min-height: 100svh;
  }
  .app-header { border-top: none; }
}