/* ==========================================================================
   Aarogya Foundation — Stylesheet
   Mobile-first, CSS variables, glassmorphism, healthcare palette
   ========================================================================== */

/* ---------------------------------------------------------------------- */
/* 1. CSS VARIABLES                                                       */
/* ---------------------------------------------------------------------- */
:root {
  /* Colors — professional healthcare palette (teal + soft blue + white) */
  --color-primary: #0d9488;        /* teal */
  --color-primary-dark: #0f766e;
  --color-primary-light: #5eead4;
  --color-secondary: #2563eb;      /* soft blue */
  --color-secondary-light: #93c5fd;
  --color-accent: #14b8a6;
  --color-bg: #f5faf9;
  --color-bg-alt: #eefcf7;
  --color-surface: #ffffff;
  --color-text: #1f2937;
  --color-text-light: #55606c;
  --color-text-muted: #7c8792;
  --color-border: rgba(15, 118, 110, 0.14);

  --gradient-primary: linear-gradient(135deg, #0d9488 0%, #2563eb 100%);
  --gradient-soft: linear-gradient(135deg, #e6fbf7 0%, #eaf2ff 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.55), rgba(255,255,255,0.25));

  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-blur: 14px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 45px rgba(13, 148, 136, 0.18);
  --shadow-glow: 0 0 0 4px rgba(13, 148, 136, 0.12);

  /* Typography */
  --font-main: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  --fs-h1: clamp(2rem, 6vw, 3.4rem);
  --fs-h2: clamp(1.6rem, 4vw, 2.4rem);
  --fs-h3: 1.15rem;
  --fs-body: 1rem;

  /* Radii */
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-full: 999px;

  /* Spacing */
  --section-padding: clamp(3.5rem, 8vw, 6.5rem);
  --container-width: 1180px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  --transition-slow: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------------------------------------------------------------------- */
/* 2. RESET & BASE                                                        */
/* ---------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 10000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

section[id] { scroll-margin-top: 80px; }

/* ---------------------------------------------------------------------- */
/* 3. GLASSMORPHISM UTILITY                                               */
/* ---------------------------------------------------------------------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
}

/* ---------------------------------------------------------------------- */
/* 4. LOADER                                                              */
/* ---------------------------------------------------------------------- */
#loader {
  position: fixed;
  inset: 0;
  background: var(--gradient-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 99999;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#loader.loaded { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-ring {
  width: 56px; height: 56px;
  border: 4px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
.loader-text {
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.5px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------------------------------------------------------------------- */
/* 5. BUTTONS                                                             */
/* ---------------------------------------------------------------------- */
.btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 24px 50px rgba(13,148,136,0.28); }

.btn-outline {
  background: transparent;
  color: var(--color-primary-dark);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: #fff; transform: translateY(-3px); }

.btn-lg { padding: 1rem 2rem; font-size: 1rem; }
.btn-xl { padding: 1.2rem 2.6rem; font-size: 1.1rem; }

.pulse { animation: pulseGlow 2.4s ease-in-out infinite; }
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(13,148,136,0.45); }
  50% { box-shadow: 0 0 0 16px rgba(13,148,136,0); }
}

/* Ripple effect */
.ripple .ripple-circle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.55);
  transform: scale(0);
  animation: rippleAnim 0.6s ease-out;
  pointer-events: none;
}
@keyframes rippleAnim {
  to { transform: scale(2.6); opacity: 0; }
}

/* ---------------------------------------------------------------------- */
/* 6. NAVBAR                                                              */
/* ---------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition-base), box-shadow var(--transition-base), padding var(--transition-base);
  padding: 0.9rem 0;
}
.navbar.scrolled {
  background: rgba(255,255,255,0.85);
  box-shadow: var(--shadow-md);
  padding: 0.55rem 0;
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary-dark);
}
.logo i { color: var(--color-primary); font-size: 1.3rem; }
.logo em { font-style: normal; color: var(--color-secondary); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-fast);
}
.nav-link:hover { color: var(--color-primary); }
.nav-link:hover::after { width: 100%; }

.nav-call-btn { padding: 0.6rem 1.25rem; font-size: 0.9rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  z-index: 1100;
}
.nav-toggle span {
  width: 26px; height: 2.5px;
  background: var(--color-primary-dark);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------------------------------------------------------------------- */
/* 7. HERO                                                                */
/* ---------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 8.5rem 0 4rem;
  overflow: hidden;
  background: var(--gradient-soft);
}

.hero-bg-shapes { position: absolute; inset: 0; z-index: 0; }
.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(50px);
  opacity: 0.45;
}
.shape-1 { width: 320px; height: 320px; background: var(--color-primary-light); top: -80px; left: -80px; }
.shape-2 { width: 260px; height: 260px; background: var(--color-secondary-light); bottom: -60px; right: -40px; }
.shape-3 { width: 180px; height: 180px; background: var(--color-accent); top: 40%; right: 20%; opacity: 0.25; }

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-primary-dark);
  background: rgba(13,148,136,0.1);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.1rem;
}

.hero-content h1 {
  font-size: var(--fs-h1);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.75rem;
}

.hero-tagline {
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 1rem;
}

.hero-desc {
  color: var(--color-text-light);
  max-width: 540px;
  margin-bottom: 1.8rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-light);
}
.trust-item i { color: var(--color-primary); }

.hero-media { display: flex; justify-content: center; }
.hero-image-frame {
  border-radius: var(--radius-lg);
  padding: 0.6rem;
  max-width: 420px;
  width: 100%;
}
.hero-image-frame img {
  border-radius: calc(var(--radius-lg) - 8px);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 4.5;
}

/* ---------------------------------------------------------------------- */
/* 8. SECTION SHARED                                                      */
/* ---------------------------------------------------------------------- */
.section { padding: var(--section-padding) 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 3rem; }
.section-tag {
  display: inline-block;
  color: var(--color-primary-dark);
  background: rgba(13,148,136,0.1);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}
.section-head h2 { font-size: var(--fs-h2); margin-bottom: 0.75rem; }
.section-sub { color: var(--color-text-light); }

.center-cta { text-align: center; margin-top: 2.5rem; }

/* ---------------------------------------------------------------------- */
/* 9. ABOUT                                                               */
/* ---------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.about-card {
  padding: 2rem 1.5rem;
  border-radius: var(--radius-md);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.about-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.about-icon {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.4rem;
  margin: 0 auto 1.1rem;
}
.about-card h3 { font-size: var(--fs-h3); margin-bottom: 0.5rem; }
.about-card p { color: var(--color-text-light); font-size: 0.92rem; }

/* ---------------------------------------------------------------------- */
/* 10. SERVICES                                                           */
/* ---------------------------------------------------------------------- */
.services { background: var(--color-bg-alt); }
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.service-card {
  padding: 2.2rem 1.6rem;
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.service-card:hover { transform: translateY(-8px) scale(1.01); box-shadow: var(--shadow-lg); }
.service-icon {
  width: 54px; height: 54px;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1.1rem;
}
.service-card h3 { font-size: var(--fs-h3); margin-bottom: 0.5rem; }
.service-card p { color: var(--color-text-light); font-size: 0.92rem; }

/* ---------------------------------------------------------------------- */
/* 11. BENEFITS / WHY CHOOSE US                                           */
/* ---------------------------------------------------------------------- */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.benefit-card {
  padding: 1.75rem 1.1rem;
  border-radius: var(--radius-md);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.benefit-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.benefit-card i { font-size: 1.7rem; color: var(--color-primary); margin-bottom: 0.7rem; }
.benefit-card h3 { font-size: 1rem; margin-bottom: 0.35rem; }
.benefit-card p { font-size: 0.85rem; color: var(--color-text-light); }

/* ---------------------------------------------------------------------- */
/* 12. PROCESS / TIMELINE                                                 */
/* ---------------------------------------------------------------------- */
.process { background: var(--color-bg-alt); }
.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 27px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(var(--color-primary), var(--color-secondary));
  opacity: 0.3;
}
.timeline-item { display: flex; gap: 1.25rem; position: relative; }
.timeline-icon {
  flex-shrink: 0;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  z-index: 1;
}
.timeline-content { padding: 1.25rem 1.4rem; border-radius: var(--radius-md); flex: 1; }
.timeline-step {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
}
.timeline-content h3 { font-size: 1.05rem; margin-bottom: 0.3rem; }
.timeline-content p { font-size: 0.9rem; color: var(--color-text-light); }

/* ---------------------------------------------------------------------- */
/* 13. STATS                                                              */
/* ---------------------------------------------------------------------- */
.stats { background: var(--gradient-primary); padding: 3.5rem 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.stat-card {
  text-align: center;
  padding: 1.75rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
}
.stat-number {
  display: block;
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  font-weight: 800;
  color: #fff;
}
.stat-card p { color: rgba(255,255,255,0.9); font-size: 0.85rem; margin-top: 0.25rem; }

/* ---------------------------------------------------------------------- */
/* 14. TESTIMONIALS                                                       */
/* ---------------------------------------------------------------------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.testimonial-card {
  padding: 2rem 1.6rem;
  border-radius: var(--radius-md);
  position: relative;
  transition: transform var(--transition-base);
}
.testimonial-card:hover { transform: translateY(-6px); }
.quote-icon { color: var(--color-primary-light); font-size: 1.5rem; margin-bottom: 0.75rem; }
.testimonial-card blockquote { font-size: 0.95rem; color: var(--color-text); margin-bottom: 1.2rem; font-style: italic; }
.testimonial-card figcaption strong { display: block; font-size: 0.95rem; }
.testimonial-card figcaption span { font-size: 0.8rem; color: var(--color-text-muted); }

/* ---------------------------------------------------------------------- */
/* 15. FAQ ACCORDION                                                      */
/* ---------------------------------------------------------------------- */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.9rem; }
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-fast);
}
.faq-item.active { box-shadow: var(--shadow-md); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.4rem;
  font-weight: 600;
  font-size: 0.95rem;
  text-align: left;
  color: var(--color-text);
}
.faq-question i { transition: transform var(--transition-base); color: var(--color-primary); }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-base);
  padding: 0 1.4rem;
}
.faq-item.active .faq-answer { padding: 0 1.4rem 1.2rem; }
.faq-answer p { color: var(--color-text-light); font-size: 0.92rem; }

/* ---------------------------------------------------------------------- */
/* 16. FINAL CTA                                                          */
/* ---------------------------------------------------------------------- */
.final-cta { padding-top: 0; }
.final-cta-inner {
  text-align: center;
  border-radius: var(--radius-lg);
  padding: 3.5rem 1.5rem;
  background: var(--gradient-soft);
}
.cta-icon { font-size: 2.4rem; color: var(--color-primary); margin-bottom: 1rem; }
.final-cta-inner h2 { font-size: var(--fs-h2); margin-bottom: 0.6rem; }
.final-cta-inner p { color: var(--color-text-light); margin-bottom: 1.75rem; }

/* ---------------------------------------------------------------------- */
/* 17. FOOTER                                                             */
/* ---------------------------------------------------------------------- */
.footer { background: #0b3b36; color: rgba(255,255,255,0.85); padding: 4rem 0 0; margin-top: 3rem; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
}
.footer-brand .logo { color: #fff; margin-bottom: 0.75rem; }
.footer-brand .logo em { color: var(--color-primary-light); }
.footer-brand p { font-size: 0.88rem; color: rgba(255,255,255,0.65); max-width: 320px; }
.footer h3 { color: #fff; font-size: 1rem; margin-bottom: 1rem; }
.footer-links ul, .footer-legal ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a, .footer-legal a { font-size: 0.9rem; color: rgba(255,255,255,0.7); transition: color var(--transition-fast); }
.footer-links a:hover, .footer-legal a:hover { color: var(--color-primary-light); }
.footer-contact p { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; margin-bottom: 0.6rem; color: rgba(255,255,255,0.75); }
.footer-contact a { color: rgba(255,255,255,0.9); font-weight: 600; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 1.5rem 1.25rem 2rem;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
}
.footer-disclaimer { max-width: 640px; margin: 0.5rem auto 0; font-size: 0.78rem; }

/* ---------------------------------------------------------------------- */
/* 18. FLOATING BUTTONS                                                   */
/* ---------------------------------------------------------------------- */
.floating-buttons {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 900;
}
.float-btn {
  width: 54px; height: 54px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 1.4rem;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-fast);
}
.float-btn:hover { transform: scale(1.1); }
.whatsapp-btn { background: #25d366; }
.call-btn { background: var(--gradient-primary); animation: pulseGlow 2.4s ease-in-out infinite; }

.scroll-top-btn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: 900;
}
.scroll-top-btn.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top-btn:hover { transform: translateY(-4px); }

/* ---------------------------------------------------------------------- */
/* 19. RESPONSIVE — TABLET (>=700px)                                      */
/* ---------------------------------------------------------------------- */
@media (min-width: 700px) {
  .about-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits-grid { grid-template-columns: repeat(3, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------------------------------------------------------------------- */
/* 20. RESPONSIVE — DESKTOP (>=980px)                                     */
/* ---------------------------------------------------------------------- */
@media (min-width: 980px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; gap: 3rem; }
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .about-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; }

  .timeline { flex-direction: row; }
  .timeline::before { left: 0; right: 0; top: 27px; bottom: auto; height: 2px; width: auto; }
  .timeline-item { flex-direction: column; flex: 1; text-align: center; align-items: center; }
  .timeline-content { text-align: left; }
}

/* ---------------------------------------------------------------------- */
/* 21. RESPONSIVE — NAV MOBILE (<980px)                                   */
/* ---------------------------------------------------------------------- */
@media (max-width: 979px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(78vw, 320px);
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 1.75rem;
    padding: 2rem;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    box-shadow: -10px 0 30px rgba(0,0,0,0.08);
  }
  .nav-menu.open { transform: translateX(0); }
  .nav-call-btn { margin-top: 0.5rem; }
}

/* ---------------------------------------------------------------------- */
/* 22. ACCESSIBILITY / MOTION                                             */
/* ---------------------------------------------------------------------- */
@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;
  }
}

:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}