/* PACSCRC Portal - Estilos Profesionales */
:root {
  --primary: #00897B;
  --primary-dark: #00695C;
  --primary-light: #4DB6AC;
  --secondary: #263238;
  --bg: #F8FAFB;
  --surface: #FFFFFF;
  --text: #1A1C1E;
  --text-secondary: #5F6368;
  --border: #DADCE0;
  --error: #D93025;
  --success: #188038;
  --warning: #F29900;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(60,64,67,0.12), 0 1px 2px rgba(60,64,67,0.24);
  --shadow-lg: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
}

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

body {
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* Header & Nav */
.header {
  background: var(--surface);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 20px;
}
.header-nav { display: flex; gap: 8px; }
.header-nav a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius);
  transition: all 0.2s;
}
.header-nav a:hover, .header-nav a.active {
  background: #E0F2F1;
  color: var(--primary-dark);
}
.header-user { display: flex; align-items: center; gap: 16px; }

/* Dashboard Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: 24px 0 40px;
}
.stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform 0.2s;
}
.stat-card:hover { transform: translateY(-2px); }
.stat-card .label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.stat-card .value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-dark);
}

/* Tables */
.card-table {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}
table {
  width: 100%;
  border-collapse: collapse;
}
th {
  background: #F8F9FA;
  padding: 14px 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
td {
  padding: 16px 20px;
  border-bottom: 1px solid #F1F3F4;
  font-size: 14px;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: #F8F9FA; }

/* Badges */
.badge {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
}
.badge-success { background: #E6F4EA; color: var(--success); }
.badge-error { background: #FCE8E6; color: var(--error); }
.badge-info { background: #E8F0FE; color: #1967D2; }

/* Buttons */
.btn {
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { border-color: var(--border); color: var(--text); background: white; }
.btn-outline:hover { background: #F8F9FA; border-color: var(--text-secondary); }

.page-title { font-size: 24px; font-weight: 700; margin: 32px 0 8px; color: var(--secondary); }
.page-subtitle { color: var(--text-secondary); margin-bottom: 24px; font-size: 15px; }

/* ============================================================
   Login Page
   ============================================================ */
.login-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background: linear-gradient(135deg, #E0F2F1 0%, var(--bg) 50%, #E8F5E9 100%);
}
.login-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 48px 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  width: 100%;
  max-width: 420px;
  text-align: center;
}
.login-card .logo {
  font-size: 48px;
  margin-bottom: 8px;
}
.login-card h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 4px;
}
.login-card .subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 32px;
}
.login-card form { text-align: left; }

/* Form elements */
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-group input,
input[type="text"],
input[type="tel"],
input[type="password"],
input[type="email"] {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: var(--surface);
  color: var(--text);
}
.form-group input:focus,
input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,137,123,0.12);
}
.login-card .btn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  margin-top: 8px;
}

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 20px;
  text-align: left;
}
.alert-error {
  background: #FCE8E6;
  color: var(--error);
  border: 1px solid #F5C6CB;
}
.alert-success {
  background: #E6F4EA;
  color: var(--success);
  border: 1px solid #B7E1CD;
}

/* Legal links on login */
.legal-links {
  margin-top: 24px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.legal-links a {
  color: var(--primary);
  font-size: 13px;
  text-decoration: none;
}
.legal-links a:hover { text-decoration: underline; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  text-align: center;
  padding: 20px 24px;
  font-size: 13px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.site-footer a {
  color: var(--text-secondary);
  text-decoration: none;
}
.site-footer a:hover { color: var(--primary); }
.footer-sep { margin: 0 8px; }

/* ============================================================
   Header extras
   ============================================================ */
.header-logo-img {
  height: 36px;
  width: auto;
}
.header-nav .header-user {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}
.btn-logout {
  color: var(--error) !important;
  font-size: 13px !important;
}

/* ============================================================
   Patient Banner
   ============================================================ */
.patient-banner {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 24px 32px;
  border-radius: var(--radius);
  margin: 24px 0;
}
.patient-name {
  font-size: 22px;
  font-weight: 700;
}
.patient-meta { margin-top: 8px; display: flex; gap: 16px; flex-wrap: wrap; }
.patient-id-badge {
  background: rgba(255,255,255,0.2);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 13px;
}

/* ============================================================
   Tabs
   ============================================================ */
.tabs-container {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 24px;
}
.tab-btn {
  padding: 12px 24px;
  background: none;
  border: none;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
  font-family: inherit;
}
.tab-btn:hover { color: var(--primary); }
.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* ============================================================
   Study Cards
   ============================================================ */
.study-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.study-card-v2 {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}
.study-card-v2:hover { transform: translateY(-1px); }
.study-card-header {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 16px;
}
.study-type-badge { flex-shrink: 0; }
.study-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 4px;
}
.study-date-line {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-secondary);
}
.study-card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Badge modality colors */
.badge-ct { background: #E3F2FD; color: #1565C0; }
.badge-mr { background: #F3E5F5; color: #7B1FA2; }
.badge-dx { background: #FFF3E0; color: #E65100; }
.badge-us { background: #E0F7FA; color: #00695C; }
.badge-default { background: #F5F5F5; color: #616161; }
.badge-report { background: #FFF8E1; color: #F57F17; }

/* Button variants */
.btn-sm {
  padding: 8px 14px;
  font-size: 13px;
  border-radius: 6px;
}
.btn-whatsapp { background: #25D366; color: white; }
.btn-whatsapp:hover { background: #1DA851; }
.btn-email { background: #1976D2; color: white; }
.btn-email:hover { background: #1565C0; }
.btn-report { background: #FF8F00; color: white; }
.btn-report:hover { background: #F57C00; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-secondary);
}
.empty-state .icon { font-size: 48px; margin-bottom: 16px; }
.empty-state h2 { font-size: 18px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.empty-state p { font-size: 14px; }

/* ============================================================
   Modals
   ============================================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-overlay.active {
  display: flex;
}
.modal {
  background: var(--surface);
  border-radius: 16px;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.modal-lg { max-width: 700px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 18px; font-weight: 600; }
.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 4px 8px;
  border-radius: 4px;
}
.modal-close:hover { background: #F5F5F5; }
.modal-body { padding: 24px; }
.modal-footer {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}
.modal-meta { margin-bottom: 20px; }
.meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.meta-item { font-size: 14px; }
.meta-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 2px;
}
.meta-value { color: var(--text); }
.interpretation-content {
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
}

/* Share modal */
.share-warning {
  background: #FFF8E1;
  border: 1px solid #FFE082;
  border-radius: 8px;
  padding: 20px;
  font-size: 14px;
}
.share-warning ul { margin: 12px 0 0 20px; }
.share-warning li { margin-bottom: 8px; }
.phone-input-group {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.phone-prefix {
  padding: 12px 16px;
  background: #F5F5F5;
  font-weight: 600;
  color: var(--text-secondary);
  border-right: 1px solid var(--border);
}
.phone-input {
  flex: 1;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}
.phone-hint {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ============================================================
   Legal Pages
   ============================================================ */
.legal-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 24px;
}
.legal-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.legal-card h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 8px;
}
.legal-card h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--secondary);
  margin-top: 28px;
  margin-bottom: 12px;
}
.legal-card p { margin-bottom: 12px; font-size: 15px; }
.legal-card ul {
  margin: 8px 0 16px 24px;
  font-size: 15px;
}
.legal-card li { margin-bottom: 6px; }
.legal-card section { margin-bottom: 8px; }
.back-link {
  display: inline-block;
  color: var(--primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
}
.back-link:hover { text-decoration: underline; }
.last-updated {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: 1fr; }
  .header .container { flex-direction: column; gap: 16px; text-align: center; }
  .login-card { padding: 32px 24px; }
  .study-card-header { flex-direction: column; }
  .study-card-actions { flex-direction: column; }
  .meta-grid { grid-template-columns: 1fr; }
  .legal-card { padding: 24px 20px; }
  .modal { margin: 16px; }
  .header-nav { flex-wrap: wrap; justify-content: center; }
}