/* ============================================================
   ICHTHYOSIS GUIDE — SHARED DESIGN SYSTEM
   style.css — Link this from every page
   ============================================================ */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
  /* Brand Colors */
  --primary-teal: #0D9488;
  --dark-teal: #0B3D3D;
  --light-teal-bg: #E6F7F5;
  --page-bg: #F7F9FC;
  --white: #FFFFFF;
  --text-dark: #1A1A2E;
  --text-gray: #6B7280;
  --border-color: #E5E7EB;

  /* Type Accent Colors */
  --accent-teal: #0D9488;       /* Vulgaris */
  --accent-blue: #3B82F6;       /* X-Linked */
  --accent-purple: #8B5CF6;     /* Lamellar */
  --accent-red: #EF4444;        /* Harlequin */
  --accent-orange: #F97316;     /* Netherton */
  --accent-amber: #F59E0B;      /* KID */
  --accent-pink: #EC4899;       /* CHILD */
  --accent-indigo: #6366F1;     /* PIBIDS */
  --accent-cyan: #06B6D4;       /* Refsum */
  --accent-green: #10B981;      /* Self-Healing */
  --accent-slate: #64748B;      /* Bathing Suit */

  /* Alert Colors */
  --alert-critical-bg: #FEF2F2;
  --alert-critical-border: #EF4444;
  --alert-critical-text: #991B1B;
  --alert-warning-bg: #FFFBEB;
  --alert-warning-border: #F59E0B;
  --alert-warning-text: #92400E;
  --alert-info-bg: #EFF6FF;
  --alert-info-border: #3B82F6;
  --alert-info-text: #1E40AF;
  --alert-success-bg: #F0FDF4;
  --alert-success-border: #10B981;
  --alert-success-text: #065F46;

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing (8px grid) */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 80px;
  --max-width: 1200px;
  --card-padding: 24px;

  /* Effects */
  --card-shadow: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
  --hover-shadow: 0 20px 25px -5px rgba(0,0,0,0.08);
  --scroll-shadow: 0 1px 3px rgba(0,0,0,0.06);
  --border-radius-card: 16px;
  --border-radius-button: 9999px;
  --border-radius-input: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background-color: var(--page-bg);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

/* ===== TYPOGRAPHY ===== */
h1 {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

h2 {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

h3 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
  color: var(--text-dark);
}

h4 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--spacing-xs);
  color: var(--text-dark);
}

h5, h6 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--text-dark);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-gray);
  line-height: 1.7;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--primary-teal);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

a:hover {
  color: var(--dark-teal);
  text-decoration: underline;
}

a:focus {
  outline: 3px solid var(--primary-teal);
  outline-offset: 2px;
  border-radius: 4px;
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 16px;
  font-weight: 500;
}

button:focus {
  outline: 3px solid var(--primary-teal);
  outline-offset: 2px;
}

small, .label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-gray);
}

strong {
  font-weight: 600;
  color: var(--text-dark);
}

/* ===== ACCESSIBILITY ===== */
.skip-link {
  position: absolute;
  top: -48px;
  left: 0;
  background: var(--primary-teal);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-sm);
  z-index: 9999;
  font-weight: 600;
  border-radius: 0 0 8px 0;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
  outline: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== LAYOUT UTILITIES ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  max-width: var(--max-width);
  margin: 0 auto var(--spacing-xl);
  padding: 0 var(--spacing-md);
}

.section-full {
  padding: var(--spacing-xl) var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.section-center {
  text-align: center;
}

.section-center h2 {
  margin-bottom: var(--spacing-lg);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

/* ===== HEADER / NAV ===== */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 200;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

header.scrolled {
  box-shadow: var(--scroll-shadow);
  border-bottom-color: var(--border-color);
}

body.nav-open header {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-teal);
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover {
  text-decoration: none;
  color: var(--dark-teal);
}

.logo svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
  list-style: none;
}

.nav-links li a {
  color: var(--text-dark);
  font-weight: 500;
  font-size: 15px;
  padding: 8px 12px;
  border-radius: 8px;
  transition: var(--transition);
  display: block;
  white-space: nowrap;
}

.nav-links li a:hover {
  color: var(--primary-teal);
  background: var(--light-teal-bg);
  text-decoration: none;
}

.nav-links li a.active {
  color: var(--primary-teal);
  background: var(--light-teal-bg);
  font-weight: 600;
}

/* Types dropdown */
.nav-links li.has-dropdown {
  position: relative;
}

.nav-links li.has-dropdown > a::after {
  content: ' ▾';
  font-size: 11px;
}

.mega-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--white);
  border-radius: var(--border-radius-card);
  box-shadow: var(--hover-shadow);
  padding: var(--spacing-md);
  min-width: 480px;
  z-index: 300;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
  border: 1px solid var(--border-color);
}

.nav-links li.has-dropdown:hover .mega-dropdown,
.nav-links li.has-dropdown:focus-within .mega-dropdown {
  display: grid;
}

.dropdown-item {
  padding: 10px var(--spacing-sm);
  border-radius: 10px;
  text-decoration: none;
  color: var(--text-dark);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

.dropdown-item:hover {
  background: var(--light-teal-bg);
  color: var(--primary-teal);
  text-decoration: none;
}

.dropdown-item .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dropdown-item strong {
  display: block;
  font-size: 14px;
  margin-bottom: 2px;
}

.dropdown-item small {
  font-size: 12px;
  color: var(--text-gray);
}

.nav-search-btn {
  background: none;
  border: none;
  padding: 8px;
  border-radius: 8px;
  color: var(--text-gray);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.nav-search-btn:hover {
  background: var(--light-teal-bg);
  color: var(--primary-teal);
}

.nav-cta {
  background: var(--primary-teal);
  color: var(--white) !important;
  padding: 10px 20px !important;
  border-radius: var(--border-radius-button) !important;
  font-weight: 600 !important;
  white-space: nowrap;
  display: inline-block;
}

.nav-cta:hover {
  background: var(--dark-teal) !important;
  color: var(--white) !important;
  text-decoration: none !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(13,148,136,0.3);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
  border-radius: 8px;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
  display: block;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== MAIN CONTENT OFFSET ===== */
main {
  margin-top: 72px;
}

/* ===== HERO SECTIONS ===== */
.hero {
  background: linear-gradient(135deg, var(--dark-teal) 0%, var(--primary-teal) 100%);
  padding: var(--spacing-xl) var(--spacing-md);
  color: var(--white);
}

.hero .container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero h1 {
  color: var(--white);
  font-size: 52px;
  margin-bottom: var(--spacing-sm);
}

.hero .subtitle {
  font-size: 20px;
  color: rgba(255,255,255,0.85);
  max-width: 620px;
  margin-bottom: var(--spacing-lg);
}

.hero-light {
  background: linear-gradient(135deg, var(--light-teal-bg) 0%, var(--white) 100%);
  padding: var(--spacing-xl) var(--spacing-md);
  color: var(--text-dark);
}

.hero-light h1 {
  color: var(--text-dark);
}

.hero-light .subtitle {
  color: var(--text-gray);
}

/* ===== BREADCRUMBS ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--spacing-md);
  font-size: 14px;
  flex-wrap: wrap;
}

.hero .breadcrumb a,
.hero .breadcrumb span {
  color: rgba(255,255,255,0.7);
}

.hero .breadcrumb a:hover {
  color: var(--white);
  text-decoration: none;
}

.hero .breadcrumb .sep {
  color: rgba(255,255,255,0.4);
}

.hero-light .breadcrumb a {
  color: var(--primary-teal);
}

.hero-light .breadcrumb span {
  color: var(--text-gray);
}

.breadcrumb .sep {
  color: var(--text-gray);
  opacity: 0.5;
}

/* Auto-separator for ol>li breadcrumbs (newer pages) */
.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb li + li::before {
  content: '›';
  color: rgba(255,255,255,0.4);
  font-size: 14px;
}
.hero-light .breadcrumb li + li::before,
:not(.hero) .breadcrumb li + li::before {
  color: var(--text-gray);
  opacity: 0.6;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-teal);
  color: var(--white);
  padding: 14px 28px;
  border-radius: var(--border-radius-button);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1;
  min-height: 48px;
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--dark-teal);
  color: var(--white);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(13,148,136,0.3);
}

.btn-primary:focus {
  outline: 3px solid var(--white);
  outline-offset: 2px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  color: var(--primary-teal);
  padding: 14px 28px;
  border-radius: var(--border-radius-button);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border: 2px solid var(--primary-teal);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1;
  min-height: 48px;
  white-space: nowrap;
}

.btn-secondary:hover {
  background: var(--primary-teal);
  color: var(--white);
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-outlined {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-dark);
  padding: 13px 28px;
  border-radius: var(--border-radius-button);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1;
  min-height: 48px;
}

.btn-outlined:hover {
  border-color: var(--primary-teal);
  color: var(--primary-teal);
  text-decoration: none;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
  min-height: 36px;
}

.btn-lg {
  padding: 18px 40px;
  font-size: 18px;
  min-height: 56px;
}

.hero .btn-primary {
  background: var(--white);
  color: var(--primary-teal);
}

.hero .btn-primary:hover {
  background: var(--light-teal-bg);
  color: var(--dark-teal);
}

.hero .btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}

.hero .btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
  color: var(--white);
}

.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* ===== CARDS ===== */
.card {
  background: var(--white);
  border-radius: var(--border-radius-card);
  padding: var(--card-padding);
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--hover-shadow);
}

.card-plain {
  background: var(--white);
  border-radius: var(--border-radius-card);
  padding: var(--card-padding);
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.card-plain:hover {
  transform: translateY(-3px);
  box-shadow: var(--hover-shadow);
}

.card-icon {
  width: 52px;
  height: 52px;
  background: var(--light-teal-bg);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  flex-shrink: 0;
}

.card-icon svg {
  width: 26px;
  height: 26px;
  color: var(--primary-teal);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary-teal);
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
  margin-top: var(--spacing-sm);
}

.card-link:hover {
  gap: 8px;
  text-decoration: none;
}

/* ===== STAT CARDS ===== */
.stat-card {
  background: var(--white);
  border-radius: var(--border-radius-card);
  padding: var(--spacing-md);
  box-shadow: var(--card-shadow);
  text-align: center;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-teal);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-gray);
  font-weight: 500;
}

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--border-radius-button);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-primary {
  background: var(--light-teal-bg);
  color: var(--primary-teal);
}

.badge-solid {
  background: var(--primary-teal);
  color: var(--white);
}

.badge-warning {
  background: #FFFBEB;
  color: #92400E;
}

.badge-danger {
  background: #FEF2F2;
  color: #991B1B;
}

.badge-info {
  background: #EFF6FF;
  color: #1E40AF;
}

/* ===== TYPE PILLS ===== */
.type-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--border-radius-button);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: 2px solid transparent;
}

.type-pill:hover {
  transform: translateY(-2px);
  text-decoration: none;
  box-shadow: var(--card-shadow);
}

.type-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* ===== TABLES ===== */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--border-radius-card);
  box-shadow: var(--card-shadow);
  background: var(--white);
  margin-bottom: var(--spacing-lg);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

thead {
  background: var(--dark-teal);
  position: sticky;
  top: 72px;
  z-index: 10;
}

thead th {
  padding: 14px var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid var(--border-color);
  transition: background 0.15s;
}

tbody tr:nth-child(even) {
  background: var(--page-bg);
}

tbody tr:hover {
  background: var(--light-teal-bg);
}

tbody td {
  padding: 14px var(--spacing-md);
  color: var(--text-gray);
  vertical-align: top;
}

tbody td:first-child {
  font-weight: 600;
  color: var(--text-dark);
}

.td-green { color: #065F46; background: #F0FDF4; }
.td-amber { color: #92400E; background: #FFFBEB; }
.td-red { color: #991B1B; background: #FEF2F2; }

/* ===== ALERTS ===== */
.alert {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 12px;
  margin-bottom: var(--spacing-md);
  font-size: 15px;
  line-height: 1.6;
}

.alert p {
  color: inherit;
  margin: 0;
}

.alert strong {
  display: block;
  margin-bottom: 4px;
}

.alert-critical {
  background: var(--alert-critical-bg);
  border-color: var(--alert-critical-border);
  color: var(--alert-critical-text);
}

.alert-warning {
  background: var(--alert-warning-bg);
  border-color: var(--alert-warning-border);
  color: var(--alert-warning-text);
}

.alert-info {
  background: var(--alert-info-bg);
  border-color: var(--alert-info-border);
  color: var(--alert-info-text);
}

.alert-success {
  background: var(--alert-success-bg);
  border-color: var(--alert-success-border);
  color: var(--alert-success-text);
}

/* ===== TABS ===== */
.tab-nav {
  display: flex;
  gap: 4px;
  background: var(--page-bg);
  padding: 4px;
  border-radius: 14px;
  margin-bottom: var(--spacing-md);
  overflow-x: auto;
  scrollbar-width: none;
}

.tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
  padding: 10px 20px;
  border-radius: 10px;
  background: transparent;
  border: none;
  font-weight: 500;
  color: var(--text-gray);
  cursor: pointer;
  transition: var(--transition);
  font-size: 15px;
  white-space: nowrap;
  min-height: 44px;
}

.tab-btn.active {
  background: var(--white);
  color: var(--primary-teal);
  box-shadow: var(--card-shadow);
  font-weight: 600;
}

.tab-btn:hover:not(.active) {
  background: rgba(255,255,255,0.5);
  color: var(--text-dark);
}

.tab-panel {
  display: none;
}

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

/* ===== ACCORDION ===== */
.accordion-item {
  background: var(--white);
  border-radius: 12px;
  margin-bottom: 8px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
}

.accordion-header {
  padding: var(--spacing-md);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--text-dark);
  transition: background 0.2s;
  min-height: 56px;
  font-family: var(--font-heading);
  font-size: 16px;
  user-select: none;
}

.accordion-header:hover {
  background: var(--light-teal-bg);
  color: var(--primary-teal);
}

.accordion-header .chevron {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  color: var(--text-gray);
}

.accordion-item.open .accordion-header {
  background: var(--light-teal-bg);
  color: var(--primary-teal);
}

.accordion-item.open .accordion-header .chevron {
  transform: rotate(180deg);
  color: var(--primary-teal);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4,0,0.2,1);
}

.accordion-item.open .accordion-body {
  max-height: 2000px;
}

.accordion-content {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--text-gray);
  line-height: 1.7;
}

.accordion-content p { color: var(--text-gray); }
.accordion-content ul { padding-left: var(--spacing-md); list-style: disc; }
.accordion-content li { margin-bottom: 6px; }

/* ===== PROGRESS BARS ===== */
.progress-bar-wrap {
  height: 10px;
  background: var(--page-bg);
  border-radius: 9999px;
  overflow: hidden;
  margin-bottom: 6px;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 9999px;
  background: var(--primary-teal);
  transition: width 0.6s ease;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-gray);
  margin-bottom: var(--spacing-xs);
}

/* ===== PROTOCOL / STEPS ===== */
.protocol-step {
  display: flex;
  gap: var(--spacing-md);
  background: var(--white);
  border-radius: 14px;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--card-shadow);
  align-items: flex-start;
}

.step-number {
  background: var(--primary-teal);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 14px;
  border-radius: 10px;
  padding: 8px 14px;
  flex-shrink: 0;
  min-width: 72px;
  text-align: center;
}

.step-content h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

/* ===== CHECKLIST ===== */
.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 15px;
  color: var(--text-gray);
}

.checklist li:last-child {
  border-bottom: none;
}

.checklist li::before {
  content: '';
  width: 20px;
  height: 20px;
  border: 2px solid var(--primary-teal);
  border-radius: 5px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===== MODALS ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--white);
  border-radius: var(--border-radius-card);
  padding: var(--spacing-lg);
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: var(--page-bg);
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-gray);
}

.modal-close:hover {
  background: var(--border-color);
  color: var(--text-dark);
}

/* ===== NEXT STEP CTA (required every page) ===== */
.next-step-cta {
  background: linear-gradient(135deg, var(--dark-teal) 0%, var(--primary-teal) 100%);
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  margin-top: var(--spacing-xl);
}

.next-step-cta .container {
  max-width: 640px;
}

.next-step-cta h2 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
}

.next-step-cta p {
  color: rgba(255,255,255,0.85);
  font-size: 18px;
  margin-bottom: var(--spacing-lg);
}

.next-step-cta .btn-primary {
  background: var(--white);
  color: var(--primary-teal);
  font-size: 18px;
  padding: 16px 36px;
}

.next-step-cta .btn-primary:hover {
  background: var(--light-teal-bg);
  transform: translateY(-3px);
}

/* ===== FOOTER ===== */
footer {
  background: var(--dark-teal);
  color: var(--white);
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
  border-radius: 24px 24px 0 0;
  margin-top: 0;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-brand p {
  font-size: 14px;
  color: #A7DCDA;
  margin-bottom: var(--spacing-md);
}

.footer-column h4 {
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 10px;
}

.footer-column a {
  color: #A7DCDA;
  font-size: 14px;
  transition: var(--transition);
}

.footer-column a:hover {
  color: var(--white);
  text-decoration: none;
}

.footer-newsletter-desc {
  font-size: 14px;
  color: #A7DCDA;
  margin-bottom: var(--spacing-sm);
}

.newsletter-form {
  display: flex;
  gap: var(--spacing-xs);
}

.newsletter-form input {
  flex: 1;
  padding: 11px 16px;
  border: none;
  border-radius: var(--border-radius-input);
  font-family: var(--font-body);
  font-size: 14px;
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
}

.newsletter-form input::placeholder {
  color: rgba(255,255,255,0.5);
}

.newsletter-form button {
  padding: 11px 20px;
  background: var(--primary-teal);
  color: var(--white);
  border-radius: var(--border-radius-input);
  font-size: 14px;
  white-space: nowrap;
}

.newsletter-form button:hover {
  background: #0B8276;
}

.social-links {
  display: flex;
  gap: 10px;
  margin-top: var(--spacing-sm);
}

.social-link {
  display: inline-flex;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  color: #A7DCDA;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--primary-teal);
  color: var(--white);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-disclaimer {
  font-size: 12px;
  color: #7BBAB6;
  max-width: 600px;
  line-height: 1.5;
}

.footer-legal-links {
  display: flex;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

.footer-legal-links a {
  color: #A7DCDA;
  font-size: 13px;
}

.footer-legal-links a:hover {
  color: var(--white);
  text-decoration: none;
}

/* ===== FORM ELEMENTS ===== */
input, select, textarea {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-input);
  padding: 12px 16px;
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-teal);
  box-shadow: 0 0 0 3px rgba(13,148,136,0.15);
}

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

.form-group {
  margin-bottom: var(--spacing-md);
}

/* ===== SEARCH BAR ===== */
.search-bar {
  display: flex;
  gap: 0;
  border-radius: var(--border-radius-input);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  background: var(--white);
}

.search-bar input {
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.search-bar input:focus {
  box-shadow: none;
}

.search-bar button {
  padding: 12px 20px;
  background: var(--primary-teal);
  color: var(--white);
  border-radius: 0;
  white-space: nowrap;
}

/* ===== FILTER TAGS ===== */
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.filter-tag {
  padding: 8px 18px;
  border-radius: var(--border-radius-button);
  border: 1px solid var(--border-color);
  background: var(--white);
  color: var(--text-gray);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  min-height: 36px;
}

.filter-tag.active,
.filter-tag:hover {
  background: var(--primary-teal);
  color: var(--white);
  border-color: var(--primary-teal);
}

/* ===== SECTION DIVIDER ===== */
.divider {
  border: none;
  height: 1px;
  background: var(--border-color);
  margin: var(--spacing-xl) 0;
}

/* ===== HIGHLIGHT BOX ===== */
.highlight-box {
  background: var(--light-teal-bg);
  border-radius: 14px;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.highlight-box h3, .highlight-box h4 {
  color: var(--dark-teal);
}

/* ===== MEDICAL DISCLAIMER ===== */
.medical-disclaimer {
  background: var(--alert-warning-bg);
  border: 1px solid var(--alert-warning-border);
  border-radius: 12px;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 13px;
  color: var(--alert-warning-text);
  margin-bottom: var(--spacing-lg);
  line-height: 1.5;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* ===== RESPONSIVE BREAKPOINTS ===== */

/* Tablet: 768px */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 56px;
    --spacing-lg: 32px;
  }

  h1 { font-size: 36px; }
  h2 { font-size: 26px; }
  h3 { font-size: 20px; }

  .hero h1 { font-size: 36px; }
  .hero .subtitle { font-size: 17px; }

  .hamburger { display: flex; }

  .nav-wrapper .nav-links,
  .nav-wrapper .nav-search-btn,
  .nav-wrapper .nav-cta {
    display: none;
  }

  .nav-links.mobile-open {
    display: flex !important;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    padding: 80px var(--spacing-md) var(--spacing-md);
    gap: 4px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: var(--hover-shadow);
  }

  .nav-links.mobile-open li a {
    font-size: 17px;
    padding: 12px 16px;
    border-radius: 8px;
  }

  .nav-links.mobile-open .mega-dropdown {
    display: none !important;
  }

  body.nav-open {
    overflow: hidden;
  }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .protocol-step {
    flex-direction: column;
  }
}

/* Mobile: 375px */
@media (max-width: 480px) {
  :root {
    --spacing-xl: 40px;
    --spacing-lg: 24px;
    --spacing-md: 16px;
  }

  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
  h3 { font-size: 18px; }

  .hero h1 { font-size: 28px; }
  .hero .subtitle { font-size: 15px; }

  .grid-4 { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; }

  .btn-primary, .btn-secondary {
    padding: 12px 22px;
    font-size: 15px;
  }

  .header-container {
    padding: 12px 16px;
  }

  .next-step-cta h2 { font-size: 24px; }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form button {
    border-radius: var(--border-radius-input);
  }
}

/* Large desktop: 1200px+ */
@media (min-width: 1200px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}