/* ===== CSS Variables ===== */
:root {
  /* Primary - Calming Medical Blue */
  --color-primary: #1E6091;
  --color-primary-dark: #154566;
  --color-primary-light: #E8F4FC;

  /* Secondary - Healing Teal */
  --color-secondary: #2A9D8F;
  --color-secondary-dark: #1E7268;
  --color-secondary-light: #E8F6F4;

  /* Accent - Warm Hope Orange */
  --color-accent: #E76F51;
  --color-accent-light: #FDF0ED;

  /* Survival Rate Colors (gradient from good to poor) */
  --color-excellent: #22C55E;
  --color-good: #84CC16;
  --color-moderate: #EAB308;
  --color-fair: #F97316;
  --color-poor: #EF4444;

  /* Stage Colors */
  --color-stage-1: #22C55E;
  --color-stage-2: #84CC16;
  --color-stage-3: #F97316;
  --color-stage-4: #EF4444;

  /* Neutrals */
  --color-bg: #F8FAFC;
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-400: #94A3B8;
  --color-gray-500: #64748B;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1E293B;
  --color-gray-900: #0F172A;

  /* Semantic */
  --color-success: #22C55E;
  --color-success-light: #DCFCE7;
  --color-warning: #F59E0B;
  --color-warning-light: #FEF3C7;
  --color-danger: #EF4444;
  --color-danger-light: #FEE2E2;
  --color-info: #3B82F6;
  --color-info-light: #DBEAFE;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
  --shadow-xl: 0 16px 40px rgba(0,0,0,0.12);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-gray-800);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-gray-900);
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }

p { margin-bottom: 1rem; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

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

.section {
  padding: var(--spacing-3xl) 0;
}

/* ===== Navigation ===== */
.navbar {
  background-color: var(--color-white);
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--color-gray-200);
}

.navbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  color: var(--color-gray-600);
  font-weight: 500;
  padding: var(--spacing-sm) 0;
  position: relative;
  font-size: 0.9375rem;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-secondary {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: #D1E8F8;
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-gray-300);
  color: var(--color-gray-700);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.0625rem;
}

/* ===== Hero Section ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-secondary) 100%);
  color: white;
  padding: var(--spacing-3xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Ccircle cx='50' cy='50' r='40' fill='rgba(255,255,255,0.03)'/%3E%3C/svg%3E") repeat;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: white;
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 1.25rem;
  opacity: 0.9;
  max-width: 600px;
}

/* ===== Page Header ===== */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.page-header h1 {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.page-header p {
  opacity: 0.9;
  font-size: 1.125rem;
  max-width: 700px;
  margin: 0 auto;
}

/* ===== Cards ===== */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-body {
  padding: var(--spacing-lg);
}

/* ===== Cancer Type Cards ===== */
.cancer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.cancer-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: pointer;
}

.cancer-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.cancer-card.selected {
  border-left-color: var(--color-secondary);
  background: var(--color-secondary-light);
}

.cancer-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
}

.cancer-card__name {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
}

.cancer-card__gender {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}

.cancer-card__stats {
  display: flex;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.cancer-card__stat {
  text-align: center;
}

.cancer-card__stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.cancer-card__stat-label {
  font-size: 0.75rem;
  color: var(--color-gray-500);
}

/* ===== Survival Rate Display ===== */
.survival-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.875rem;
}

.survival-badge.excellent {
  background: var(--color-success-light);
  color: var(--color-success);
}

.survival-badge.good {
  background: #ECFCCB;
  color: #65A30D;
}

.survival-badge.moderate {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.survival-badge.fair {
  background: #FFEDD5;
  color: #EA580C;
}

.survival-badge.poor {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

/* ===== Stage Badges ===== */
.stage-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.875rem;
  color: white;
}

.stage-badge.stage-1 { background: var(--color-stage-1); }
.stage-badge.stage-2 { background: var(--color-stage-2); }
.stage-badge.stage-3 { background: var(--color-stage-3); }
.stage-badge.stage-4 { background: var(--color-stage-4); }

/* ===== Data Tables ===== */
.data-table-container {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  background: var(--color-gray-50);
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-gray-700);
  border-bottom: 2px solid var(--color-gray-200);
}

.data-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-gray-200);
  font-size: 0.9375rem;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover {
  background: var(--color-gray-50);
}

.data-table .number {
  font-weight: 600;
  font-family: 'SF Mono', 'Monaco', monospace;
}

.data-table .highlight {
  background: var(--color-primary-light);
}

/* ===== Survival Charts ===== */
.chart-container {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.chart-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.chart-legend {
  display: flex;
  gap: var(--spacing-lg);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 2px;
}

/* ===== Form Elements ===== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-800);
}

.form-label small {
  font-weight: 400;
  color: var(--color-gray-500);
}

.form-input,
.form-select {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition-fast);
  background-color: var(--color-white);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-light);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23757575' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 44px;
}

/* ===== Checkbox & Radio Cards ===== */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.checkbox-card {
  position: relative;
  cursor: pointer;
}

.checkbox-card input {
  position: absolute;
  opacity: 0;
}

.checkbox-card__content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.checkbox-card:hover .checkbox-card__content {
  border-color: var(--color-primary);
}

.checkbox-card input:checked + .checkbox-card__content {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.checkbox-card__icon {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.checkbox-card input:checked + .checkbox-card__content .checkbox-card__icon {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.checkbox-card__text {
  flex: 1;
}

.checkbox-card__label {
  font-weight: 500;
  display: block;
}

.checkbox-card__desc {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}

/* ===== Radio Options ===== */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.radio-option {
  display: block;
  cursor: pointer;
}

.radio-option input {
  position: absolute;
  opacity: 0;
}

.radio-label {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.radio-option:hover .radio-label {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.radio-option input:checked + .radio-label {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.radio-label strong {
  display: block;
  margin-bottom: 2px;
}

.radio-label small {
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

/* ===== Cost Tables ===== */
.cost-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-lg);
}

.cost-table th {
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
}

.cost-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-gray-200);
}

.cost-table tr:nth-child(even) {
  background: var(--color-gray-50);
}

.cost-table .cost-value {
  font-weight: 600;
  color: var(--color-primary);
  font-family: 'SF Mono', 'Monaco', monospace;
}

.cost-table .cost-range {
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

/* ===== Treatment Cards ===== */
.treatment-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-secondary);
}

.treatment-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.treatment-card__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.treatment-card__type {
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--color-secondary-light);
  color: var(--color-secondary-dark);
  font-weight: 600;
}

.treatment-card__line {
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--color-info-light);
  color: var(--color-info);
  font-weight: 600;
}

.treatment-card ul {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-lg);
}

.treatment-card li {
  margin-bottom: var(--spacing-xs);
}

/* ===== Disclaimer Box ===== */
.disclaimer {
  background: var(--color-warning-light);
  border-left: 4px solid var(--color-warning);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin: var(--spacing-lg) 0;
}

.disclaimer__title {
  font-weight: 600;
  color: var(--color-warning);
  margin-bottom: var(--spacing-xs);
}

.disclaimer p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-gray-700);
}

/* ===== Citation Box ===== */
.citation {
  background: var(--color-info-light);
  border-left: 4px solid var(--color-info);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin: var(--spacing-md) 0;
  font-size: 0.875rem;
}

.citation__source {
  font-weight: 600;
  color: var(--color-info);
}

.citation a {
  color: var(--color-info);
  text-decoration: underline;
}

/* ===== Info Cards ===== */
.info-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

.info-card h2 {
  margin-bottom: var(--spacing-md);
}

.info-card ul {
  padding-left: var(--spacing-lg);
  margin: var(--spacing-md) 0;
}

.info-card li {
  margin-bottom: var(--spacing-sm);
}

/* ===== Tabs ===== */
.tabs-container {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.tab-navigation {
  display: flex;
  border-bottom: 2px solid var(--color-gray-200);
  overflow-x: auto;
}

.tab-btn {
  padding: var(--spacing-md) var(--spacing-xl);
  font-weight: 600;
  color: var(--color-gray-600);
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.tab-btn:hover {
  color: var(--color-primary);
  background: var(--color-gray-50);
}

.tab-btn.active {
  color: var(--color-primary);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
}

.tab-content {
  display: none;
  padding: var(--spacing-xl);
}

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

/* ===== Accordion ===== */
.accordion {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
}

.accordion-item {
  border-bottom: 1px solid var(--color-gray-200);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  padding: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  color: var(--color-gray-800);
  transition: background-color var(--transition-fast);
}

.accordion-header:hover {
  background-color: var(--color-gray-50);
}

.accordion-header::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-gray-500);
  transition: transform var(--transition-base);
}

.accordion-item.active .accordion-header::after {
  content: '-';
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  padding: 0 var(--spacing-lg);
}

.accordion-item.active .accordion-content {
  padding-bottom: var(--spacing-lg);
}

/* ===== Financing Scheme Cards ===== */
.scheme-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
  transition: all var(--transition-base);
}

.scheme-card:hover {
  border-color: var(--color-primary);
}

.scheme-card__icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #D1E8F8 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: var(--spacing-md);
}

.scheme-card__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.scheme-card__coverage {
  background: var(--color-success-light);
  color: var(--color-success);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  display: inline-block;
  margin: var(--spacing-md) 0;
}

/* ===== Survival Meter ===== */
.survival-meter {
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  height: 12px;
  overflow: hidden;
  margin: var(--spacing-sm) 0;
}

.survival-meter__fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

.survival-meter__fill.excellent { background: var(--color-excellent); }
.survival-meter__fill.good { background: var(--color-good); }
.survival-meter__fill.moderate { background: var(--color-moderate); }
.survival-meter__fill.fair { background: var(--color-fair); }
.survival-meter__fill.poor { background: var(--color-poor); }

/* ===== Footer ===== */
.footer {
  background-color: var(--color-gray-900);
  color: var(--color-gray-400);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

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

.footer h4 {
  color: white;
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.footer p {
  font-size: 0.875rem;
  line-height: 1.7;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: var(--spacing-sm);
}

.footer ul a {
  color: var(--color-gray-400);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer ul a:hover {
  color: white;
}

.footer-bottom {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-gray-800);
  text-align: center;
  font-size: 0.875rem;
}

.bmc-link {
  display: inline-block;
  margin-top: var(--spacing-md);
  padding: 0.5rem 1.25rem;
  background: #FFDD00;
  color: #000;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.2s;
}

.bmc-link:hover {
  background: #e5c700;
}

/* ===== Filters ===== */
.filters {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

.filter-group {
  flex: 1;
  min-width: 200px;
}

.filter-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-gray-600);
}

.filter-select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-size: 0.9375rem;
}

/* ===== Stats Grid ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.stat-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.stat-card__value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-card__label {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
}

/* ===== Resource Cards ===== */
.resource-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.resource-card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.resource-card__content h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
}

.resource-card__content p {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-sm);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }

  .hero h1 { font-size: 2.25rem; }

  .nav-links {
    display: none;
  }

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

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

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

  .filters {
    flex-direction: column;
  }

  .data-table {
    font-size: 0.875rem;
  }

  .data-table th,
  .data-table td {
    padding: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }

  .btn {
    width: 100%;
  }

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

/* ===== Print Styles ===== */
@media print {
  .navbar,
  .footer,
  .btn,
  .filters {
    display: none;
  }

  .card,
  .data-table-container {
    box-shadow: none;
    border: 1px solid #ddd;
  }

  body {
    background: white;
  }
}