/* ============================================================
   StopMyCancer.com — Global Stylesheet
   Mobile-first, responsive, accessible, calming, brilliant.
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Primary palette — calm, clinical, trustworthy */
  --color-primary: #0A6E7A;
  --color-primary-light: #0E8A99;
  --color-primary-dark: #075660;
  --color-primary-subtle: #E8F4F6;

  /* Secondary — warm rose, human, compassionate */
  --color-secondary: #B8475E;
  --color-secondary-light: #D4607A;
  --color-secondary-dark: #8E3548;
  --color-secondary-subtle: #FAEEF1;

  /* Accent — amber, action, hope */
  --color-accent: #D4943A;
  --color-accent-light: #E8B060;
  --color-accent-dark: #B07A2E;

  /* Neutrals */
  --color-bg: #FAFAF8;
  --color-bg-alt: #F2F2EF;
  --color-bg-white: #FFFFFF;
  --color-surface: #FFFFFF;
  --color-border: #E2E2DE;
  --color-border-light: #EDEDEA;

  /* Text */
  --color-text: #1B2332;
  --color-text-secondary: #4A5568;
  --color-text-muted: #718096;
  --color-text-inverse: #FFFFFF;

  /* Status */
  --color-success: #2E7D32;
  --color-warning: #F9A825;
  --color-danger: #C62828;
  --color-info: #0277BD;

  /* Typography */
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;

  /* Font sizes — fluid scale */
  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.75rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.875rem);
  --text-base: clamp(0.9rem, 0.85rem + 0.3vw, 1rem);
  --text-lg: clamp(1rem, 0.95rem + 0.35vw, 1.125rem);
  --text-xl: clamp(1.15rem, 1.05rem + 0.5vw, 1.25rem);
  --text-2xl: clamp(1.35rem, 1.15rem + 0.75vw, 1.5rem);
  --text-3xl: clamp(1.6rem, 1.3rem + 1.2vw, 1.875rem);
  --text-4xl: clamp(1.9rem, 1.4rem + 1.8vw, 2.25rem);
  --text-5xl: clamp(2.2rem, 1.5rem + 2.5vw, 3rem);
  --text-6xl: clamp(2.5rem, 1.6rem + 3.2vw, 3.75rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

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

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(27, 35, 50, 0.06), 0 1px 2px rgba(27, 35, 50, 0.04);
  --shadow-md: 0 4px 12px rgba(27, 35, 50, 0.08), 0 2px 4px rgba(27, 35, 50, 0.04);
  --shadow-lg: 0 10px 30px rgba(27, 35, 50, 0.1), 0 4px 8px rgba(27, 35, 50, 0.04);
  --shadow-xl: 0 20px 50px rgba(27, 35, 50, 0.12), 0 8px 16px rgba(27, 35, 50, 0.06);
  --shadow-glow: 0 0 30px rgba(10, 110, 122, 0.15);

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

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-wide: 1400px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-sm) var(--space-lg);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  z-index: 10000;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  color: var(--color-text-inverse);
}

/* Focus visible for keyboard nav */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* --- Container / Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--header-height);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

.header--hidden {
  transform: translateY(-100%);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 800;
  font-size: var(--text-xl);
  color: var(--color-text);
  letter-spacing: -0.03em;
  text-decoration: none;
  flex-shrink: 0;
}

.header__logo span {
  color: var(--color-primary);
}

.header__logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 14px;
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

.header__nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  white-space: nowrap;
  position: relative;
  padding: var(--space-xs) 0;
}

.header__nav-link:hover,
.header__nav-link--active {
  color: var(--color-primary);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.header__nav-link:hover::after,
.header__nav-link--active::after {
  width: 100%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Language Switcher */
.lang-switcher {
  position: relative;
  display: flex;
  align-items: center;
}

.lang-switcher__btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 12px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-switcher__btn:hover {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.lang-switcher__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-xs);
  min-width: 160px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: 100;
}

.lang-switcher__dropdown--open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-switcher__option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 12px;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 100%;
  text-align: left;
  text-decoration: none;
}

.lang-switcher__option:hover {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.lang-switcher__option--active {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  font-weight: 600;
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.mobile-toggle:hover {
  background: var(--color-bg-alt);
}

.mobile-toggle__line {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.mobile-toggle--open .mobile-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-toggle--open .mobile-toggle__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-toggle--open .mobile-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg-white);
  z-index: 999;
  padding: var(--space-xl) var(--space-lg);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
}

.mobile-nav--open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-nav__link {
  display: block;
  padding: var(--space-md) 0;
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
  transition: color var(--transition-fast);
}

.mobile-nav__link:hover {
  color: var(--color-primary);
}

.mobile-nav__lang {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 2px solid var(--color-border);
}

.mobile-nav__lang-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.mobile-nav__lang-options {
  display: flex;
  gap: var(--space-sm);
}

.mobile-nav__lang-btn {
  padding: 8px 20px;
  font-size: var(--text-sm);
  font-weight: 600;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-nav__lang-btn:hover,
.mobile-nav__lang-btn--active {
  border-color: var(--color-primary);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-4xl);
  overflow: hidden;
  background: linear-gradient(165deg, var(--color-bg) 0%, var(--color-primary-subtle) 50%, var(--color-bg) 100%);
}

.hero__bg-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: radial-gradient(circle at 25% 25%, var(--color-primary) 2px, transparent 2px),
                     radial-gradient(circle at 75% 75%, var(--color-primary) 1px, transparent 1px);
  background-size: 60px 60px, 40px 40px;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 16px;
  background: var(--color-primary-subtle);
  border: 1px solid rgba(10, 110, 122, 0.15);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero__title {
  font-size: var(--text-6xl);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero__title-highlight {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
  max-width: 540px;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border-light);
}

.hero__trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.hero__trust-icon {
  width: 20px;
  height: 20px;
  color: var(--color-success);
  flex-shrink: 0;
}

/* Hero visual / translator preview */
.hero__visual {
  position: relative;
}

.hero__translator-preview {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

.hero__translator-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white;
}

.hero__translator-header-icon {
  width: 24px;
  height: 24px;
  opacity: 0.9;
}

.hero__translator-header h3 {
  font-size: var(--text-base);
  font-weight: 600;
  color: white;
}

.hero__translator-body {
  padding: var(--space-lg);
}

.hero__translator-input {
  width: 100%;
  min-height: 120px;
  padding: var(--space-md);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg);
  resize: vertical;
  transition: border-color var(--transition-fast);
  line-height: 1.6;
}

.hero__translator-input:focus {
  outline: none;
  border-color: var(--color-primary);
  border-style: solid;
}

.hero__translator-input::placeholder {
  color: var(--color-text-muted);
}

.hero__translator-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.hero__translator-sample {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

.hero__translator-sample a {
  font-weight: 600;
}

.hero__float-badge {
  position: absolute;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-md) var(--space-lg);
  display: none;
}

.hero__float-badge--top {
  top: -20px;
  right: -10px;
}

.hero__float-badge--bottom {
  bottom: -15px;
  left: -10px;
}

.hero__float-stat {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.hero__float-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 28px;
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
  line-height: 1.4;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-text-inverse);
  box-shadow: 0 4px 14px rgba(10, 110, 122, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(10, 110, 122, 0.4);
  color: var(--color-text-inverse);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.btn--accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: var(--color-text-inverse);
  box-shadow: 0 4px 14px rgba(212, 148, 58, 0.3);
}

.btn--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 148, 58, 0.4);
  color: var(--color-text-inverse);
}

.btn--sm {
  padding: 8px 20px;
  font-size: var(--text-sm);
}

.btn--lg {
  padding: 16px 36px;
  font-size: var(--text-lg);
}

.btn--icon {
  width: 20px;
  height: 20px;
}

.btn--full {
  width: 100%;
}

/* --- Section Layouts --- */
.section {
  padding: var(--space-4xl) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--dark {
  background: var(--color-text);
  color: var(--color-text-inverse);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-text-inverse);
}

.section--dark p {
  color: rgba(255, 255, 255, 0.75);
}

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

.section--primary h2,
.section--primary h3 {
  color: var(--color-text-inverse);
}

.section--primary p {
  color: rgba(255, 255, 255, 0.85);
}

.section__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.section__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-md);
}

.section--dark .section__label,
.section--primary .section__label {
  color: var(--color-accent-light);
}

.section__title {
  margin-bottom: var(--space-md);
}

.section__desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Cards --- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: all var(--transition-base);
}

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

.card__image {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.card__body {
  padding: var(--space-xl);
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 24px;
}

.card__icon--primary {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.card__icon--secondary {
  background: var(--color-secondary-subtle);
  color: var(--color-secondary);
}

.card__icon--accent {
  background: rgba(212, 148, 58, 0.1);
  color: var(--color-accent);
}

.card__icon--info {
  background: rgba(2, 119, 189, 0.1);
  color: var(--color-info);
}

.card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.card__title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  transition: gap var(--transition-fast);
}

.card__link:hover {
  gap: var(--space-sm);
}

.card__link-arrow {
  transition: transform var(--transition-fast);
}

.card__link:hover .card__link-arrow {
  transform: translateX(3px);
}

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

/* --- Pillar Section (4 pillars) --- */
.pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.pillar {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.pillar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.pillar--encyclopedia::before { background: var(--color-primary); }
.pillar--stories::before { background: var(--color-secondary); }
.pillar--access::before { background: var(--color-accent); }
.pillar--navigate::before { background: var(--color-info); }

.pillar:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.pillar__icon {
  font-size: 32px;
  margin-bottom: var(--space-md);
}

.pillar__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-sm);
}

.pillar__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.pillar__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.pillar__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.pillar__feature-icon {
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Stats Bar --- */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.stat {
  text-align: center;
  padding: var(--space-lg);
}

.stat__number {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.section--dark .stat__number,
.section--primary .stat__number {
  color: var(--color-accent-light);
}

.stat__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

.section--dark .stat__label,
.section--primary .stat__label {
  color: rgba(255, 255, 255, 0.7);
}

/* --- Translator Tool Section --- */
.translator {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border-light);
}

.translator__header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: var(--space-2xl) var(--space-xl);
  color: white;
  text-align: center;
}

.translator__header h2 {
  color: white;
  margin-bottom: var(--space-sm);
}

.translator__header p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 500px;
  margin: 0 auto;
}

.translator__body {
  padding: var(--space-xl);
}

.translator__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.translator__panel {
  display: flex;
  flex-direction: column;
}

.translator__label {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.translator__textarea {
  width: 100%;
  min-height: 250px;
  padding: var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  resize: vertical;
  transition: border-color var(--transition-fast);
}

.translator__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.translator__textarea::placeholder {
  color: var(--color-text-muted);
  font-family: var(--font-body);
}

.translator__output {
  width: 100%;
  min-height: 250px;
  padding: var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  overflow-y: auto;
}

.translator__output-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--color-text-muted);
  text-align: center;
  gap: var(--space-sm);
}

.translator__output-empty-icon {
  font-size: 40px;
  opacity: 0.4;
}

.translator__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.translator__disclaimer {
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-secondary-subtle);
  border-left: 4px solid var(--color-secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.translator__disclaimer strong {
  color: var(--color-secondary-dark);
}

/* Translator result items */
.result-term {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-md);
  transition: all var(--transition-fast);
}

.result-term:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.result-term__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.result-term__badge {
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.result-term__badge--stage {
  background: rgba(10, 110, 122, 0.1);
  color: var(--color-primary);
}

.result-term__badge--biomarker {
  background: rgba(212, 148, 58, 0.1);
  color: var(--color-accent-dark);
}

.result-term__badge--grade {
  background: rgba(184, 71, 94, 0.1);
  color: var(--color-secondary);
}

.result-term__badge--procedure {
  background: rgba(2, 119, 189, 0.1);
  color: var(--color-info);
}

.result-term__name {
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
}

.result-term__explanation {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.result-questions {
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-primary-subtle);
  border-radius: var(--radius-md);
}

.result-questions__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: var(--space-md);
}

.result-questions__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.result-questions__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding: var(--space-sm) 0;
}

.result-questions__icon {
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Feature Showcase --- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-bottom: var(--space-4xl);
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-row__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.feature-row__image img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.feature-row__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.feature-row__label {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.feature-row__title {
  font-size: var(--text-3xl);
}

.feature-row__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.feature-row__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.feature-row__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.feature-row__list-icon {
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

/* --- CTA Banner --- */
.cta-banner {
  text-align: center;
  padding: var(--space-4xl) var(--space-lg);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.cta-banner h2 {
  color: white;
  margin-bottom: var(--space-md);
  position: relative;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  position: relative;
}

.cta-banner .btn {
  position: relative;
}

/* --- Disclaimer/Safety Banner --- */
.safety-banner {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-secondary-subtle);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-secondary);
  margin: var(--space-xl) 0;
}

.safety-banner__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-secondary);
}

.safety-banner__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.safety-banner__text strong {
  color: var(--color-secondary-dark);
}

/* --- Info Banner --- */
.info-banner {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-primary-subtle);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary);
  margin: var(--space-xl) 0;
}

.info-banner__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.info-banner__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- Testimonial / Quote --- */
.testimonial {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-2xl) 0;
}

.testimonial__quote {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  font-style: italic;
  margin-bottom: var(--space-lg);
  position: relative;
}

.testimonial__quote::before {
  content: '\201C';
  font-size: 4rem;
  color: var(--color-primary-subtle);
  position: absolute;
  top: -20px;
  left: -10px;
  font-style: normal;
  line-height: 1;
}

.testimonial__author {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --- Cancer Type Cards --- */
.cancer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.cancer-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
}

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

.cancer-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-primary-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
}

.cancer-card__content {
  flex: 1;
}

.cancer-card__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.cancer-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
}

.cancer-card__arrow {
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.cancer-card:hover .cancer-card__arrow {
  transform: translateX(4px);
  color: var(--color-primary);
}

/* --- How It Works Steps --- */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  counter-reset: step;
}

.step {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.step__number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  font-weight: 800;
  flex-shrink: 0;
}

.step__content {
  flex: 1;
}

.step__title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.step__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --- Footer --- */
.footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.footer__brand {
  max-width: 350px;
}

.footer__logo {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: white;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.footer__logo span {
  color: var(--color-primary-light);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.footer__social {
  display: flex;
  gap: var(--space-sm);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.footer__social-link:hover {
  background: var(--color-primary);
  color: white;
}

.footer__col-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.footer__link {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.55);
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer__link:hover {
  color: var(--color-primary-light);
}

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}

.footer__copyright {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
}

.footer__legal {
  display: flex;
  gap: var(--space-lg);
}

.footer__legal-link {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__legal-link:hover {
  color: var(--color-primary-light);
}

/* --- Page Header (inner pages) --- */
.page-header {
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-3xl);
  background: linear-gradient(165deg, var(--color-bg) 0%, var(--color-primary-subtle) 100%);
  text-align: center;
}

.page-header__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-md);
}

.page-header__title {
  margin-bottom: var(--space-md);
}

.page-header__desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.page-header__image {
  margin-top: var(--space-2xl);
  border-radius: var(--radius-xl);
  overflow: hidden;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  box-shadow: var(--shadow-lg);
}

.page-header__image img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

/* --- Breadcrumb --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-md) 0;
}

.breadcrumb a {
  color: var(--color-text-muted);
}

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

.breadcrumb__sep {
  color: var(--color-border);
}

/* --- Loading spinner --- */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* --- Scroll animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in--visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left--visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right--visible {
  opacity: 1;
  transform: translateX(0);
}

/* --- Newsletter --- */
.newsletter {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 500px;
}

.newsletter__input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.newsletter__input {
  flex: 1;
  padding: 14px 20px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: var(--text-base);
  transition: all var(--transition-fast);
}

.newsletter__input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.newsletter__input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.15);
}

.newsletter__note {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
}

/* --- Tab Navigation --- */
.tabs {
  display: flex;
  gap: var(--space-xs);
  overflow-x: auto;
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border-light);
  margin-bottom: var(--space-xl);
  -webkit-overflow-scrolling: touch;
}

.tab {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
}

.tab:hover {
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

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

/* --- Content prose --- */
.prose {
  max-width: 700px;
}

.prose h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.prose h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.prose p {
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.prose ul,
.prose ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-xl);
}

.prose li {
  margin-bottom: var(--space-sm);
  line-height: 1.7;
  list-style: disc;
  color: var(--color-text-secondary);
}

.prose ol li {
  list-style: decimal;
}

/* --- Image with caption --- */
.img-block {
  margin: var(--space-2xl) 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

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

.img-block__caption {
  padding: var(--space-md);
  background: var(--color-bg-alt);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
}

/* --- Checklist --- */
.checklist {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.checklist__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.checklist__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  font-size: 12px;
}

/* ============================================================
   RESPONSIVE BREAKPOINTS — Mobile First
   ============================================================ */

/* Small phones (320px+) — base styles above */

/* Larger phones (480px+) */
@media (min-width: 480px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .newsletter__input-group {
    flex-direction: row;
  }

  .hero__translator-actions {
    flex-direction: row;
  }
}

/* Tablets (768px+) */
@media (min-width: 768px) {
  .pillars {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

  .feature-row {
    grid-template-columns: 1fr 1fr;
  }

  .feature-row--reverse .feature-row__image {
    order: 2;
  }

  .feature-row__image img {
    height: 400px;
  }

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

  .hero__float-badge {
    display: block;
  }

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

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .page-header__image img {
    height: 400px;
  }
}

/* Small desktop (1024px+) */
@media (min-width: 1024px) {
  .header__nav {
    display: flex;
  }

  .mobile-toggle {
    display: none;
  }

  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .card-grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }

  .cancer-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero {
    min-height: 90vh;
  }

  .hero__subtitle {
    font-size: var(--text-xl);
  }
}

/* Large desktop (1280px+) */
@media (min-width: 1280px) {
  .container {
    padding: 0 var(--space-2xl);
  }

  .pillars {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Print styles */
@media print {
  .header,
  .mobile-nav,
  .footer,
  .cta-banner,
  .btn,
  .lang-switcher {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  .section {
    padding: 20pt 0;
  }

  .hero {
    min-height: auto;
    padding: 20pt 0;
  }
}

/* Reduced motion preference */
@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;
  }

  .fade-in,
  .fade-in-left,
  .fade-in-right {
    opacity: 1;
    transform: none;
  }
}