/* =====================================================================
   GLOBAL BIO HUB — STYLESHEET
   Premium biotech / executive visual style.
   Palette: deep navy, biotech blue, white, light gray, teal accent.
   Typography: Manrope (headings) + Inter (body), loaded via Google Fonts.
===================================================================== */

/* ---------------------------------------------------------------------
   1. CSS VARIABLES / DESIGN TOKENS
--------------------------------------------------------------------- */
:root {
  /* Colors */
  --color-navy: #0B1F3A;
  --color-navy-light: #12294D;
  --color-biotech-blue: #1B4F8C;
  --color-biotech-blue-light: #EAF1FA;
  --color-teal: #12A594;
  --color-teal-dark: #0E8478;
  --color-white: #FFFFFF;
  --color-gray-50: #F6F8FA;
  --color-gray-100: #EEF1F5;
  --color-gray-200: #DDE3EA;
  --color-gray-400: #9AA6B2;
  --color-text: #16212E;
  --color-text-secondary: #4F5D6B;
  --color-border: #E2E7ED;

  /* Typography */
  --font-heading: 'Manrope', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Layout */
  --container-max: 1180px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(11, 31, 58, 0.06);
  --shadow-md: 0 8px 24px rgba(11, 31, 58, 0.08);
  --shadow-lg: 0 16px 48px rgba(11, 31, 58, 0.12);
  --header-height: 76px;
  --transition-fast: 0.18s ease;
  --transition-medium: 0.3s ease;
}

/* ---------------------------------------------------------------------
   2. RESET / BASE
--------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  line-height: 1.2;
  margin: 0 0 0.5em 0;
  font-weight: 700;
}

h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.15rem; font-weight: 700; }

p { margin: 0 0 1em 0; color: var(--color-text-secondary); }

button {
  font-family: var(--font-body);
  cursor: pointer;
}

/* Accessible focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-navy);
  color: var(--color-white);
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------------------------------------------------------------------
   3. LAYOUT HELPERS
--------------------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

.section:nth-of-type(even) {
  background-color: var(--color-gray-50);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-teal-dark);
  margin-bottom: 0.9em;
}

.section-lead {
  max-width: 720px;
  font-size: 1.08rem;
  margin-bottom: 3rem;
}

.grid {
  display: grid;
  gap: 28px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------------------------------------------------------------------
   4. BUTTONS
--------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-teal);
  color: var(--color-white);
}
.btn-primary:hover {
  background-color: var(--color-teal-dark);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-navy);
  color: var(--color-white);
}
.btn-secondary:hover {
  background-color: var(--color-navy-light);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-gray-200);
}
.btn-outline:hover {
  border-color: var(--color-teal);
  color: var(--color-teal-dark);
}

.btn-small { padding: 10px 20px; font-size: 0.85rem; }
.btn-large { padding: 16px 34px; font-size: 1rem; }

/* ---------------------------------------------------------------------
   5. HEADER
--------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-navy);
  font-size: 1.05rem;
  flex-shrink: 0;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-navy), var(--color-biotech-blue));
  color: var(--color-white);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  gap: 32px;
}

.nav-list a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color var(--transition-fast);
  position: relative;
}
.nav-list a:hover { color: var(--color-teal-dark); }

.nav-cta-item { display: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switch {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.lang-switch:hover {
  color: var(--color-teal-dark);
  border-color: var(--color-teal);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  padding: 0;
}
.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-navy);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------------------------------------------------
   6. HERO
--------------------------------------------------------------------- */
.hero {
  background: linear-gradient(180deg, var(--color-biotech-blue-light) 0%, var(--color-white) 100%);
  padding: 88px 0 100px;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
}

.hero h1 {
  margin-bottom: 0.6em;
}

.hero-subhead {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  max-width: 560px;
}

.hero-support {
  font-weight: 700;
  color: var(--color-navy);
  font-size: 0.95rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 28px 0 32px;
}

.hero-proof-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}
.hero-proof-points li {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-navy);
  padding-left: 20px;
  position: relative;
}
.hero-proof-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-teal);
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-graphic {
  position: relative;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1 / 1;
}

.hero-graphic-ring {
  position: absolute;
  inset: 0;
  border: 2px dashed var(--color-gray-200);
  border-radius: 50%;
}

.hero-graphic-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-navy), var(--color-biotech-blue));
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  box-shadow: var(--shadow-lg);
}

.hero-graphic-node {
  position: absolute;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-navy);
  box-shadow: var(--shadow-sm);
}
.node-1 { top: 4%; left: 50%; transform: translateX(-50%); }
.node-2 { bottom: 14%; left: 2%; }
.node-3 { bottom: 14%; right: 2%; }

/* ---------------------------------------------------------------------
   7. PROBLEM SECTION
--------------------------------------------------------------------- */
.problem-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: box-shadow var(--transition-medium), transform var(--transition-medium);
}
.problem-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.problem-card h3 {
  color: var(--color-navy);
  margin-bottom: 0.5em;
}
.problem-card p { margin: 0; font-size: 0.95rem; }

/* ---------------------------------------------------------------------
   8. SOLUTION SECTION
--------------------------------------------------------------------- */
.solution-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.solution-pillars {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pillar-card {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-biotech-blue) 100%);
  color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 26px 28px;
}
.pillar-card h3 { color: var(--color-white); margin-bottom: 0.4em; }
.pillar-card p { color: rgba(255,255,255,0.82); margin: 0; font-size: 0.92rem; }
.pillar-index {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--color-teal);
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

/* ---------------------------------------------------------------------
   9. HOW IT WORKS
--------------------------------------------------------------------- */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: step;
}

.process-step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
}
.process-step:last-child { border-bottom: none; }

.process-step-marker {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: var(--color-biotech-blue-light);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  border: 2px solid var(--color-teal);
}

.process-step-body h3 {
  margin-bottom: 0.6em;
}
.process-step-body p {
  font-size: 0.94rem;
  margin-bottom: 0.5em;
}
.process-step-body p:last-child { margin-bottom: 0; }

.process-step-tag {
  display: inline-block;
  vertical-align: middle;
  margin-left: 10px;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-teal-dark);
  background-color: var(--color-biotech-blue-light);
  padding: 4px 10px;
  border-radius: 999px;
}

.process-note {
  margin-top: 28px;
  padding: 18px 22px;
  background-color: var(--color-biotech-blue-light);
  border-left: 4px solid var(--color-teal);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--color-navy);
  font-weight: 500;
}

/* ---------------------------------------------------------------------
   10. PROGRAM TRACKS
--------------------------------------------------------------------- */
.program-card {
  position: relative;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.program-card-featured {
  border-color: var(--color-teal);
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
}

.program-badge {
  position: absolute;
  top: -13px;
  left: 26px;
  background-color: var(--color-teal);
  color: var(--color-white);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.program-tagline {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin: 0;
}

.program-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 4px 0 8px;
  flex-grow: 1;
}
.program-features li {
  font-size: 0.88rem;
  padding-left: 18px;
  position: relative;
  color: var(--color-text);
}
.program-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background-color: var(--color-teal);
  border-radius: 50%;
}

/* ---------------------------------------------------------------------
   10b. DIAGNOSTIC TOOL
--------------------------------------------------------------------- */
.diagnostic-section { background-color: var(--color-white); }

.diagnostic-container {
  max-width: 760px;
}

.diagnostic-intro { margin-bottom: 40px; }

.diagnostic-tool {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.diagnostic-progress {
  height: 6px;
  background-color: var(--color-gray-200);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 14px;
}
.diagnostic-progress-bar {
  height: 100%;
  width: 16.6667%;
  background-color: var(--color-teal);
  border-radius: 999px;
  transition: width var(--transition-medium) ease;
}

.diagnostic-step-counter {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
}

.diagnostic-step {
  display: none;
  border: none;
  padding: 0;
  margin: 0;
}
.diagnostic-step.is-active { display: block; }

.diagnostic-step legend {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-navy);
  padding: 0;
  margin-bottom: 20px;
}

.diagnostic-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.diagnostic-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}
.diagnostic-option:hover { border-color: var(--color-teal); }
.diagnostic-option input { width: auto; margin: 0; accent-color: var(--color-teal); }
.diagnostic-option.is-checked {
  border-color: var(--color-teal);
  background-color: var(--color-biotech-blue-light);
}

.diagnostic-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
}
.diagnostic-nav .btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.diagnostic-results {
  margin-top: 40px;
}

.diagnostic-score { margin-bottom: 28px; }
.diagnostic-score-label {
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
}
.diagnostic-score-meter {
  height: 10px;
  background-color: var(--color-gray-200);
  border-radius: 999px;
  overflow: hidden;
}
.diagnostic-score-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-biotech-blue), var(--color-teal));
  border-radius: 999px;
  transition: width var(--transition-medium) ease;
}

.diagnostic-result-tier {
  display: none;
  background-color: var(--color-biotech-blue-light);
  border: 1px solid var(--color-teal);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
}
.diagnostic-result-tier.is-active { display: block; }
.diagnostic-result-tier h3 { font-size: 1.4rem; margin-bottom: 0.5em; }
.diagnostic-result-tier .checklist { margin-top: 18px; }

.diagnostic-retake {
  text-align: center;
  margin-bottom: 40px;
}

.diagnostic-schedule {
  border-top: 1px solid var(--color-border);
  padding-top: 36px;
}

.calendly-embed-wrapper {
  position: relative;
  width: 100%;
  min-height: 480px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-gray-50);
  overflow: hidden;
  margin: 20px 0;
}
.calendly-embed-wrapper iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.calendly-embed-placeholder-note {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  text-align: center;
}
.calendly-embed-placeholder-note p {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
  margin: 0;
}

.diagnostic-schedule-alt {
  font-size: 0.9rem;
  text-align: center;
}

.link-button {
  background: none;
  border: none;
  padding: 0;
  color: var(--color-teal-dark);
  font-weight: 700;
  font-size: inherit;
  text-decoration: underline;
  cursor: pointer;
}

#meeting-request-form {
  max-width: 520px;
  margin: 24px auto 0;
}

/* ---------------------------------------------------------------------
   11. SERVICES
--------------------------------------------------------------------- */
.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
}
.service-card h3 { margin-bottom: 0.5em; }
.service-card p { margin: 0; font-size: 0.93rem; }

/* ---------------------------------------------------------------------
   12. WHY SPAIN
--------------------------------------------------------------------- */
.why-card {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}
.why-card h3 { margin-bottom: 0.4em; }
.why-card p { margin: 0; font-size: 0.93rem; }

/* ---------------------------------------------------------------------
   13. INFRASTRUCTURE
--------------------------------------------------------------------- */
.why-qube-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}
.checklist li {
  padding-left: 30px;
  position: relative;
  font-size: 0.96rem;
  color: var(--color-text);
}
.checklist li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 5px;
  background-color: var(--color-teal);
  color: var(--color-white);
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-embed-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background-color: var(--color-navy);
}
.video-embed-wrapper iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-caption {
  margin: 14px 4px 0;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-align: center;
}

/* ---------------------------------------------------------------------
   14. WHO SHOULD APPLY
--------------------------------------------------------------------- */
.who-should-apply-note {
  margin-top: 8px;
  font-size: 0.92rem;
  max-width: 720px;
}
.who-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.who-list li {
  padding-left: 26px;
  position: relative;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--color-navy);
}
.who-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  background-color: var(--color-teal);
  border-radius: 2px;
}

/* ---------------------------------------------------------------------
   15. OUTCOMES
--------------------------------------------------------------------- */
.outcome-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-teal);
  border-radius: var(--radius-sm);
  padding: 20px 18px;
  font-weight: 700;
  color: var(--color-navy);
  font-size: 0.95rem;
}

/* ---------------------------------------------------------------------
   16. RESOURCES
--------------------------------------------------------------------- */
.resource-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.resource-card h3 { margin: 0; font-size: 1.02rem; }
.resource-card p { margin: 0; font-size: 0.9rem; flex-grow: 1; }

/* ---------------------------------------------------------------------
   17. FAQ
--------------------------------------------------------------------- */
.faq-list {
  max-width: 820px;
  border-top: 1px solid var(--color-border);
}

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

.faq-question { margin: 0; }

.faq-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: transparent;
  border: none;
  text-align: left;
  padding: 22px 4px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-navy);
}

.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  position: relative;
}
.faq-icon::before, .faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background-color: var(--color-teal);
  transition: transform var(--transition-fast);
}
.faq-icon::before { width: 14px; height: 2px; transform: translate(-50%, -50%); }
.faq-icon::after { width: 2px; height: 14px; transform: translate(-50%, -50%); }
.faq-toggle[aria-expanded="true"] .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg) scaleY(0); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium) ease, padding var(--transition-medium) ease;
  padding: 0 4px;
}
.faq-answer p { font-size: 0.95rem; margin: 0 0 20px 0; }
.faq-item.is-open .faq-answer {
  max-height: 320px;
}

/* ---------------------------------------------------------------------
   18. APPLICATION FORM
--------------------------------------------------------------------- */
.apply-section { background-color: var(--color-gray-50); }

.apply-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: start;
}

.apply-intro { position: sticky; top: calc(var(--header-height) + 24px); }

.apply-secondary-note {
  font-size: 0.9rem;
  margin-top: 24px;
}
.apply-secondary-note a {
  color: var(--color-teal-dark);
  font-weight: 700;
  text-decoration: underline;
}

.apply-form {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-field {
  margin-bottom: 20px;
  border: none;
  padding: 0;
}

.form-field legend {
  padding: 0;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-navy);
}

label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.required { color: var(--color-teal-dark); }

input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  transition: border-color var(--transition-fast);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-teal);
}

input.is-invalid, select.is-invalid, textarea.is-invalid {
  border-color: #C0392B;
}

textarea { resize: vertical; min-height: 90px; }

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.radio-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--color-text);
  margin: 0;
}
.radio-option input { width: auto; margin: 0; }

.field-error {
  display: block;
  color: #C0392B;
  font-size: 0.8rem;
  margin-top: 6px;
  min-height: 1em;
}

.form-submit { width: 100%; margin-top: 8px; }

.form-confirmation {
  margin-top: 24px;
  padding: 20px;
  background-color: var(--color-biotech-blue-light);
  border: 1px solid var(--color-teal);
  border-radius: var(--radius-md);
  text-align: center;
}
.form-confirmation h3 { margin-bottom: 0.3em; }
.form-confirmation p { margin: 0; }

/* ---------------------------------------------------------------------
   19. FOOTER
--------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding-top: 72px;
}

.footer-contact {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 64px;
}
.footer-contact h2 { color: var(--color-white); }
.footer-contact p { color: rgba(255,255,255,0.75); margin-bottom: 24px; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.footer-column h3 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: 1em;
}
.footer-column p { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.footer-built-by { font-weight: 600; color: rgba(255,255,255,0.85) !important; }

.footer-column ul { display: flex; flex-direction: column; gap: 10px; }
.footer-column a {
  color: rgba(255,255,255,0.72);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}
.footer-column a:hover { color: var(--color-teal); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
}

.footer-lang { display: flex; align-items: center; gap: 6px; }
.lang-current { color: var(--color-white); font-weight: 700; }
.lang-divider { color: rgba(255,255,255,0.4); }
.lang-link { color: rgba(255,255,255,0.72); font-weight: 700; transition: color var(--transition-fast); }
.lang-link:hover { color: var(--color-teal); }

/* ---------------------------------------------------------------------
   20. RESOURCE MODAL
--------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(11, 31, 58, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal-overlay[hidden] { display: none; }

.modal-box {
  position: relative;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 420px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: transparent;
  border: none;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--color-text-secondary);
}

.modal-resource-name {
  font-weight: 700;
  color: var(--color-teal-dark);
  font-size: 0.9rem;
}

/* ---------------------------------------------------------------------
   21. RESPONSIVE BREAKPOINTS
--------------------------------------------------------------------- */

/* Tablet */
@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 320px; margin: 0 auto; }
  .solution-layout,
  .why-qube-layout,
  .apply-layout {
    grid-template-columns: 1fr;
  }
  .apply-intro { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* Mobile */
@media (max-width: 680px) {
  .section { padding: 60px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .diagnostic-tool { padding: 24px; }
  .diagnostic-result-tier { padding: 24px; }
  .calendly-embed-wrapper { min-height: 360px; }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium) ease;
    display: block;
  }
  .main-nav.is-open { max-height: 480px; }
  .nav-list {
    flex-direction: column;
    gap: 0;
    padding: 12px 24px 24px;
  }
  .nav-list a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-gray-100);
  }
  .nav-cta-item { display: block; border-bottom: none; margin-top: 12px; }
  .nav-cta-item a { display: inline-flex; border-bottom: none; padding: 12px 20px; }

  .nav-toggle { display: flex; }
  .header-actions .btn-small.btn-primary { display: none; }

  .hero-cta-group .btn { width: 100%; }
  .hero-cta-group { flex-direction: column; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}