/* ==========================================================================
   DiagnoMediQ — hand-authored design system (ported from the Next.js/Tailwind
   build: tailwind.config.ts + globals.css + component-level utility classes).
   No build step required — plain CSS, works on any static/PHP host.
   ========================================================================== */

:root {
  --midnight-950: #050b1a;
  --midnight-900: #070f22;
  --midnight-800: #0b1530;
  --midnight-700: #12203f;
  --midnight-500: #2c4576;
  --medical-blue-500: #1a5fb4;
  --medical-blue-600: #0e4f9e;
  --cyan-glow: #4fd8ff;
  --cyan: #22c5f5;
  --cyan-soft: #8fe9ff;
  --teal-soft: #2ee6c8;
  --grey-cool: #a6b3c9;
  --grey-mist: #e7ebf3;
  --white: #ffffff;
  --amber: #fbbf24;
  --red: #f87171;

  --shadow-glow: 0 0 60px -10px rgba(79, 216, 255, 0.35);
  --shadow-glow-sm: 0 0 24px -6px rgba(79, 216, 255, 0.4);
  --shadow-panel: 0 20px 60px -20px rgba(3, 6, 15, 0.6);

  --font-heading: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  --container-max: 1280px;
  --radius-lg: 1.5rem;
  --radius-xl: 1.75rem;
  color-scheme: dark;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; }
body {
  margin: 0;
  background: var(--midnight-950);
  color: var(--grey-mist);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p { margin: 0; }

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

::selection { background: rgba(79, 216, 255, 0.3); color: #fff; }

a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--cyan-glow);
  outline-offset: 2px;
  border-radius: 4px;
}

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

.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 100;
  background: var(--cyan-glow); color: var(--midnight-950);
  padding: 0.6rem 1.2rem; border-radius: 999px; font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* ---- Layout helpers ---- */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 1.25rem; }
@media (min-width: 640px) { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

.grid-overlay {
  position: absolute; inset: 0; opacity: 0.35; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}
.radial-glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 60% at 50% 30%, rgba(79,216,255,0.16) 0%, rgba(5,11,26,0) 70%);
}

/* ---- Typography ---- */
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 800; color: #fff; letter-spacing: -0.02em; }
.text-balance { text-wrap: balance; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.2em;
  color: var(--cyan-glow); margin-bottom: 1rem;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 999px; background: currentColor; }

.section-heading { max-width: 42rem; }
.section-heading.center { margin: 0 auto; text-align: center; }
.section-heading h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
.section-heading p { margin-top: 1rem; font-size: 1.0625rem; color: var(--grey-cool); line-height: 1.6; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  border-radius: 999px; font-weight: 600; padding: 0.75rem 1.5rem; font-size: 0.9375rem;
  border: none; cursor: pointer; transition: all 0.2s ease;
}
.btn-lg { padding: 1rem 2rem; font-size: 1.0625rem; }
.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.875rem; }
.btn-primary { background: var(--cyan-glow); color: var(--midnight-950); box-shadow: var(--shadow-glow-sm); }
.btn-primary:hover { background: var(--cyan-soft); }
.btn-secondary { background: rgba(255,255,255,0.05); color: #fff; border: 1px solid rgba(255,255,255,0.2); backdrop-filter: blur(8px); }
.btn-secondary:hover { background: rgba(255,255,255,0.1); }
.btn-ghost { background: transparent; color: var(--medical-blue-500); }
.btn-ghost:hover { background: rgba(26,95,180,0.1); }

/* ---- Glass panel / card ---- */
.glass {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-panel);
}
.card {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.03);
  padding: 1.75rem;
  transition: all 0.3s ease;
}
.card-link:hover, .card.hoverable:hover {
  transform: translateY(-4px);
  border-color: rgba(79,216,255,0.3);
  box-shadow: var(--shadow-glow-sm);
}

.placeholder-tag {
  display: inline-flex; align-items: center; gap: 0.4rem;
  border-radius: 999px; border: 1px solid rgba(251,191,36,0.3); background: rgba(251,191,36,0.1);
  padding: 0.25rem 0.65rem; font-size: 0.6875rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.05em; color: #fcd34d;
}
.placeholder-tag .dot { width: 6px; height: 6px; border-radius: 999px; background: #fbbf24; }
.note-amber { font-size: 0.75rem; color: rgba(252,211,77,0.9); }

/* ---- Header / nav ---- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  padding: 1.25rem 0; transition: all 0.3s ease;
}
.site-header.scrolled {
  background: rgba(5,11,26,0.7); backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.1); padding: 0.75rem 0;
}
.nav-inner {
  max-width: var(--container-max); margin: 0 auto; padding: 0 1.25rem;
  display: flex; align-items: center; justify-content: space-between;
}
@media (min-width: 640px) { .nav-inner { padding: 0 1.5rem; } }
.logo { display: inline-flex; align-items: center; font-family: var(--font-heading); font-weight: 800; font-size: 1.25rem; color: #fff; }
.logo span { color: var(--cyan-glow); }
.logo-img { height: 22px; width: auto; display: block; }
.footer-logo-img { height: 34px; }
@media (min-width: 640px) { .logo-img { height: 24px; } }
.nav-links { display: none; align-items: center; gap: 1.75rem; }
.nav-links a { font-size: 0.875rem; font-weight: 500; color: var(--grey-cool); transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-cta { display: none; }
.nav-toggle {
  background: transparent; border: none; color: #fff; padding: 0.5rem; cursor: pointer;
}
@media (min-width: 1024px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-toggle { display: none; }
}

.nav-mobile {
  display: none; margin: 0.75rem 1rem 0; border-radius: 1rem;
  border: 1px solid rgba(255,255,255,0.1); background: rgba(5,11,26,0.97);
  backdrop-filter: blur(20px); padding: 1.25rem;
}
.nav-mobile.open { display: block; }
.nav-mobile ul { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.25rem; }
.nav-mobile a { font-size: 1rem; font-weight: 500; color: var(--grey-mist); }
.nav-mobile a:hover { color: var(--cyan-glow); }
@media (min-width: 1024px) { .nav-mobile { display: none !important; } }

.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; font-size: 0.75rem; color: var(--grey-cool); }
.breadcrumb li { display: flex; align-items: center; gap: 0.4rem; }
.breadcrumb a:hover { color: var(--cyan-glow); }
.breadcrumb .current { color: var(--grey-mist); }

/* ---- Page hero (subpages) ---- */
.page-hero { position: relative; overflow: hidden; padding: 8rem 0 4rem; }
@media (min-width: 640px) { .page-hero { padding: 10rem 0 5rem; } }
.page-hero .container { position: relative; max-width: 64rem; }
.page-hero h1 { font-size: clamp(1.875rem, 5vw, 3rem); }
.page-hero-description { margin-top: 1rem; max-width: 42rem; font-size: 1.0625rem; color: var(--grey-cool); line-height: 1.6; }

/* ---- Hero (home) ---- */
.hero { position: relative; overflow: hidden; padding: 8rem 0 5rem; }
@media (min-width: 640px) { .hero { padding: 10rem 0 7rem; } }
.hero .container { position: relative; display: grid; gap: 3rem; align-items: center; }
@media (min-width: 1024px) { .hero .container { grid-template-columns: 1fr 1fr; } }

.badge-pill {
  display: inline-flex; align-items: center; gap: 0.5rem; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.05);
  padding: 0.4rem 1rem; font-size: 0.75rem; font-weight: 500; color: var(--grey-cool);
}
.badge-pill .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--cyan-glow); animation: pulseSlow 4s cubic-bezier(.4,0,.6,1) infinite; }

.hero h1 { margin-top: 1.5rem; font-size: clamp(2.25rem, 6vw, 3.75rem); color: #fff; }
.hero-sub { margin-top: 1.5rem; max-width: 36rem; font-size: 1.125rem; color: var(--grey-cool); line-height: 1.6; }
.hero-actions { margin-top: 2.25rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.hero-call { margin-top: 1.5rem; display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.875rem; font-weight: 500; color: var(--grey-cool); }
.hero-call:hover { color: var(--cyan-glow); }
.hero-call span.underline { text-decoration: underline; text-underline-offset: 4px; }

.hero-visual { position: relative; }
.hero-canvas-wrap { position: relative; aspect-ratio: 1 / 1; width: 100%; max-width: 32rem; margin: 0 auto; }
.hero-canvas-wrap canvas { width: 100% !important; height: 100% !important; border-radius: 1.5rem; }

.floating-chip {
  position: absolute; display: none;
}
@media (min-width: 768px) { .floating-chip { display: block; } }
.floating-chip-inner {
  border-radius: 0.75rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.06);
  backdrop-filter: blur(20px); padding: 0.65rem 1rem; box-shadow: var(--shadow-glow-sm);
  animation: float 6s ease-in-out infinite;
}
.floating-chip-inner p { font-size: 0.75rem; font-weight: 600; color: #fff; }
.floating-chip-inner .sub { font-size: 0.625rem; color: #fcd34d; margin-top: 0.15rem; }

.scroll-cue { display: none; margin-top: 4rem; justify-content: center; color: var(--grey-cool); }
@media (min-width: 640px) { .scroll-cue { display: flex; } }
.scroll-cue-inner { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.scroll-cue span.label { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.2em; }
.scroll-cue-pill { width: 20px; height: 36px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.2); display: flex; justify-content: center; padding-top: 6px; }
.scroll-cue-pill .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--cyan-glow); animation: float 6s ease-in-out infinite; }

.webgl-fallback { position: relative; aspect-ratio: 1/1; width: 100%; max-width: 32rem; margin: 0 auto; display: flex; align-items: center; justify-content: center; border-radius: 999px; }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes pulseSlow { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ---- Strip ---- */
.strip {
  border-top: 1px solid rgba(255,255,255,0.1); border-bottom: 1px solid rgba(255,255,255,0.1);
  background: var(--midnight-900);
}
.strip .container {
  padding-top: 1.25rem; padding-bottom: 1.25rem;
  display: flex; flex-direction: column; align-items: center; justify-content: space-between; gap: 1rem;
}
@media (min-width: 640px) { .strip .container { flex-direction: row; } }
.strip p { font-size: 0.875rem; color: var(--grey-cool); text-align: center; }
@media (min-width: 640px) { .strip p { text-align: left; } }
.strip-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 0.75rem; }

/* ---- Sections ---- */
.section { padding: 6rem 0; }
@media (min-width: 640px) { .section { padding: 8rem 0; } }

/* Technology cards */
.tech-grid { margin-top: 3.5rem; display: grid; gap: 1.5rem; }
@media (min-width: 768px) { .tech-grid { grid-template-columns: repeat(3, 1fr); } }
.tech-card {
  position: relative; text-align: left; border-radius: 1.75rem; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.03);
  padding: 2rem; width: 100%; cursor: pointer; transition: all 0.3s ease;
}
.tech-card.active { border-color: rgba(79,216,255,0.4); box-shadow: var(--shadow-glow); transform: translateY(-4px); }
.tech-card-icon {
  display: inline-flex; align-items: center; justify-content: center; height: 3rem; width: 3rem;
  border-radius: 1rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.05);
  color: var(--cyan-glow); font-family: var(--font-heading); font-weight: 800;
}
.tech-card h3 { margin-top: 1.5rem; font-size: 1.5rem; }
.tech-card p { margin-top: 0.75rem; font-size: 0.9375rem; color: var(--grey-cool); line-height: 1.6; }
.tech-card-cta {
  margin-top: 1.5rem; overflow: hidden; max-height: 0; opacity: 0; transition: all 0.3s ease;
}
.tech-card.active .tech-card-cta { max-height: 3rem; opacity: 1; }
.tech-card-cta a { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.875rem; font-weight: 600; color: var(--cyan-glow); }

/* Why grid */
.why-grid { margin-top: 3.5rem; display: grid; gap: 1.5rem; }
@media (min-width: 640px) { .why-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .why-grid { grid-template-columns: repeat(4, 1fr); } }
.why-card .index { font-family: monospace; font-size: 0.75rem; color: var(--cyan-glow); }
.why-card h3 { margin-top: 0.75rem; font-size: 1.125rem; }
.why-card p { margin-top: 0.5rem; font-size: 0.875rem; color: var(--grey-cool); }

/* Body map */
.bodymap-grid { margin-top: 3.5rem; display: grid; gap: 2.5rem; align-items: start; }
@media (min-width: 1024px) { .bodymap-grid { grid-template-columns: 0.9fr 1.1fr; } }
.body-svg-wrap { position: relative; margin: 0 auto; max-width: 20rem; width: 100%; }
.region-pill-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.region-pill {
  border-radius: 999px; padding: 0.5rem 1rem; font-size: 0.875rem; font-weight: 500;
  border: 1px solid rgba(255,255,255,0.1); color: var(--grey-cool); background: transparent; cursor: pointer;
  transition: all 0.2s;
}
.region-pill:hover { border-color: rgba(255,255,255,0.3); }
.region-pill.active { border-color: var(--cyan-glow); background: rgba(79,216,255,0.1); color: var(--cyan-glow); }
.imaging-panel { margin-top: 1.5rem; padding: 1.75rem; }
.imaging-panel h3 { font-size: 1.25rem; }
.modality-tag-row { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.modality-tag {
  border-radius: 0.5rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.05);
  padding: 0.25rem 0.75rem; font-size: 0.75rem; font-weight: 600; color: var(--cyan-glow);
}
.imaging-list { margin-top: 1.5rem; display: flex; flex-direction: column; gap: 0.75rem; }
.imaging-list a, .imaging-list li.empty {
  display: flex; align-items: center; justify-content: space-between; border-radius: 0.75rem;
  border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.02); padding: 0.75rem 1rem;
  font-size: 0.875rem; color: var(--grey-mist); transition: border-color 0.2s;
}
.imaging-list a:hover { border-color: rgba(79,216,255,0.4); }
.imaging-list li.empty { color: var(--grey-cool); }

/* Service explorer / article explorer / FAQ shared styles */
.explorer-panel { border-radius: 1.75rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.03); backdrop-filter: blur(20px); padding: 1.5rem; }
@media (min-width: 640px) { .explorer-panel { padding: 2rem; } }
.search-input {
  width: 100%; border-radius: 1rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.05);
  padding: 1rem 1.25rem; color: #fff; font-size: 1rem;
}
.search-input::placeholder { color: rgba(166,179,201,0.6); }
.search-input:focus { outline: none; box-shadow: 0 0 0 2px var(--cyan-glow); }
.filter-row { margin-top: 1.25rem; display: flex; flex-wrap: wrap; gap: 1rem; }
.filter-field { display: flex; align-items: center; gap: 0.5rem; font-size: 0.875rem; }
.filter-field span { font-weight: 500; color: var(--grey-cool); }
.filter-field select {
  border-radius: 0.5rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.05);
  color: #fff; padding: 0.5rem 0.75rem;
}
.pill-row { margin-top: 1.25rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }

.results-grid { margin-top: 2rem; display: grid; gap: 1.25rem; }
@media (min-width: 640px) { .results-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .results-grid { grid-template-columns: repeat(3, 1fr); } }
.result-card {
  display: block; height: 100%; border-radius: 1rem; border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.03); padding: 1.5rem; transition: all 0.3s ease;
}
.result-card:hover { transform: translateY(-4px); border-color: rgba(79,216,255,0.3); box-shadow: var(--shadow-glow-sm); }
.result-card .tag { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; color: var(--cyan-glow); }
.result-card h3 { margin-top: 0.5rem; font-size: 1.125rem; }
.result-card p { margin-top: 0.5rem; font-size: 0.875rem; color: var(--grey-cool); line-height: 1.5; }
.result-card .cta { margin-top: 1rem; display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.875rem; font-weight: 600; color: var(--cyan-glow); }
.result-card .meta { margin-top: 1rem; display: flex; align-items: center; justify-content: space-between; font-size: 0.75rem; color: var(--grey-cool); }
.empty-state { grid-column: 1 / -1; text-align: center; color: var(--grey-cool); padding: 2.5rem 0; }
.empty-state a { color: var(--cyan-glow); font-weight: 600; }

/* FAQ accordion */
.faq-list { margin-top: 2rem; display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item { border-radius: 1rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.03); overflow: hidden; }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1rem 1.5rem; text-align: left; background: transparent; border: none; cursor: pointer; color: #fff; font-weight: 500;
}
.faq-icon {
  flex-shrink: 0; display: grid; place-items: center; height: 1.5rem; width: 1.5rem; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.15); color: var(--grey-cool); transition: transform 0.3s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); border-color: rgba(79,216,255,0.4); color: var(--cyan-glow); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.open .faq-answer { max-height: 20rem; }
.faq-answer p { padding: 0 1.5rem 1.25rem; font-size: 0.875rem; color: var(--grey-cool); line-height: 1.6; }
.faq-disclaimer { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.1); text-align: center; font-size: 0.75rem; color: rgba(252,211,77,0.9); max-width: 42rem; margin-left: auto; margin-right: auto; }

/* MRI experience */
.mri-grid { margin-top: 3.5rem; display: grid; gap: 2rem; align-items: start; }
@media (min-width: 1024px) { .mri-grid { grid-template-columns: 1.2fr 0.8fr; } }
.mri-viewport { position: relative; aspect-ratio: 4/3; border-radius: 1.75rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.02); overflow: hidden; }
.mri-viewport canvas { width: 100% !important; height: 100% !important; }
.mri-hint { position: absolute; bottom: 0.75rem; left: 50%; transform: translateX(-50%); font-size: 0.6875rem; color: var(--grey-cool); background: rgba(5,11,26,0.6); border-radius: 999px; padding: 0.25rem 0.75rem; }
.hotspot-marker {
  position: absolute; width: 20px; height: 20px; border-radius: 999px; border: 2px solid rgba(79,216,255,0.7);
  background: rgba(5,11,26,0.8); display: grid; place-items: center; cursor: pointer; transform: translate(-50%, -50%);
  transition: all 0.2s;
}
.hotspot-marker::after { content: ''; width: 6px; height: 6px; border-radius: 999px; background: #fff; }
.hotspot-marker.active { background: var(--cyan-glow); border-color: var(--cyan-glow); transform: translate(-50%, -50%) scale(1.25); }
.hotspot-panel { margin-top: 1.5rem; padding: 1.5rem; }

.process-grid { margin-top: 2.5rem; display: grid; gap: 2rem; }
@media (min-width: 768px) { .process-grid { grid-template-columns: 280px 1fr; } }
.process-list { display: flex; flex-direction: column; gap: 0.25rem; }
.process-step-btn {
  width: 100%; display: flex; align-items: center; gap: 0.75rem; border-radius: 0.75rem; padding: 0.75rem 1rem;
  text-align: left; background: transparent; border: none; cursor: pointer; color: var(--grey-cool); transition: background 0.2s;
}
.process-step-btn:hover { background: rgba(255,255,255,0.05); }
.process-step-btn.active { background: rgba(79,216,255,0.1); color: #fff; }
.process-step-num {
  display: flex; height: 1.75rem; width: 1.75rem; flex-shrink: 0; align-items: center; justify-content: center;
  border-radius: 999px; font-size: 0.75rem; font-weight: 700; background: rgba(255,255,255,0.1); color: var(--grey-cool);
}
.process-step-btn.active .process-step-num { background: var(--cyan-glow); color: var(--midnight-950); }
.process-step-btn span.label { font-size: 0.875rem; font-weight: 500; }
.process-panel { padding: 2rem; min-height: 220px; display: flex; flex-direction: column; justify-content: center; }
.process-panel .step-of { font-size: 0.75rem; font-family: monospace; color: var(--cyan-glow); }
.process-panel h4 { margin-top: 0.5rem; font-size: 1.5rem; }
.process-panel p { margin-top: 0.75rem; color: var(--grey-cool); line-height: 1.6; max-width: 32rem; }
.progress-bar { margin-top: 1.5rem; height: 6px; border-radius: 999px; background: rgba(255,255,255,0.1); overflow: hidden; }
.progress-bar-fill { height: 100%; background: var(--cyan-glow); transition: width 0.4s ease; }

/* Scan journey */
.journey-scroll { margin-top: 3.5rem; overflow-x: auto; padding-bottom: 1rem; }
.journey-tabs { display: flex; min-width: 720px; gap: 0.5rem; }
@media (min-width: 768px) { .journey-tabs { min-width: 0; } }
.journey-tab {
  flex: 1; text-align: left; border-radius: 1rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.02);
  padding: 1.25rem; cursor: pointer; transition: all 0.3s ease; color: inherit;
}
.journey-tab.active { border-color: rgba(79,216,255,0.5); background: rgba(79,216,255,0.05); box-shadow: var(--shadow-glow-sm); }
.journey-tab .index { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800; color: var(--grey-cool); }
.journey-tab.active .index { color: var(--cyan-glow); }
.journey-tab .title { margin-top: 0.5rem; font-size: 0.875rem; font-weight: 600; color: var(--grey-mist); }
.journey-tab.active .title { color: #fff; }
.journey-progress { position: relative; margin-top: 0.5rem; min-width: 720px; height: 4px; border-radius: 999px; background: rgba(255,255,255,0.1); overflow: hidden; }
@media (min-width: 768px) { .journey-progress { min-width: 0; } }
.journey-progress-fill { height: 100%; background: var(--cyan-glow); transition: width 0.5s ease; }
.journey-panel { margin-top: 2rem; padding: 2rem; }
.journey-panel h3 { font-size: 1.5rem; }
.journey-panel .summary { margin-top: 0.5rem; color: var(--grey-cool); }
.journey-details { margin-top: 1.25rem; display: grid; gap: 0.5rem 2rem; }
@media (min-width: 640px) { .journey-details { grid-template-columns: repeat(2, 1fr); } }
.journey-details li { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.875rem; color: var(--grey-mist); }
.journey-details li::before { content: ''; margin-top: 0.4rem; width: 6px; height: 6px; flex-shrink: 0; border-radius: 999px; background: var(--cyan-glow); }
.journey-note { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.75rem; color: rgba(252,211,77,0.9); }

/* Equipment / doctors */
.equip-grid, .doctor-grid { margin-top: 3.5rem; display: grid; gap: 1.5rem; }
@media (min-width: 768px) { .equip-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 640px) { .doctor-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .doctor-grid { grid-template-columns: repeat(3, 1fr); } }
.equip-image { aspect-ratio: 16/9; border-radius: 1rem; background: linear-gradient(135deg, rgba(10,61,124,0.4), var(--midnight-800)); display: flex; align-items: center; justify-content: center; }
.equip-image span { font-family: var(--font-heading); font-size: 0.875rem; color: var(--grey-cool); }
.equip-card h3, .doctor-card h3 { margin-top: 1.25rem; font-size: 1.125rem; }
.equip-card .title-row, .doctor-card .title-row { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.equip-card p.model { margin-top: 0.25rem; font-size: 0.875rem; color: var(--grey-cool); }
.equip-features { margin-top: 1rem; display: flex; flex-direction: column; gap: 0.35rem; }
.equip-features li { font-size: 0.75rem; color: var(--grey-cool); line-height: 1.5; }
.equip-apps { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.equip-apps span { border-radius: 999px; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.05); padding: 0.25rem 0.6rem; font-size: 0.6875rem; color: var(--grey-mist); }
.doctor-avatar { height: 4rem; width: 4rem; border-radius: 999px; background: linear-gradient(135deg, var(--medical-blue-600), var(--midnight-800)); border: 1px solid rgba(255,255,255,0.1); }
.doctor-card .specialization { margin-top: 0.25rem; font-size: 0.875rem; color: var(--cyan-glow); }
.doctor-card .qualification { margin-top: 0.75rem; font-size: 0.875rem; color: var(--grey-cool); }
.doctor-card .meta-line { font-size: 0.75rem; color: var(--grey-cool); margin-top: 0.25rem; }

/* Testimonials */
.testimonial-grid { margin-top: 3.5rem; display: grid; gap: 1.5rem; }
@media (min-width: 640px) { .testimonial-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .testimonial-grid { grid-template-columns: repeat(3, 1fr); } }
.testimonial-card p.quote { font-size: 0.875rem; color: var(--grey-mist); line-height: 1.6; }
.testimonial-card .attrib { margin-top: 1.25rem; display: flex; align-items: center; justify-content: space-between; }
.testimonial-card .attrib .name { font-size: 0.875rem; font-weight: 600; color: #fff; }
.testimonial-card .attrib .date { font-size: 0.75rem; color: var(--grey-cool); }
.testimonial-empty {
  margin-top: 3.5rem; max-width: 36rem; margin-left: auto; margin-right: auto; text-align: center;
  border: 2px dashed rgba(255,255,255,0.15); border-radius: 1rem; padding: 2.5rem;
}
.testimonial-empty p { font-size: 0.875rem; color: var(--grey-cool); }

/* Location / contact */
.location-grid { margin-top: 3.5rem; display: grid; gap: 2rem; align-items: stretch; }
@media (min-width: 1024px) { .location-grid { grid-template-columns: repeat(2, 1fr); } }
.info-panel { padding: 2rem; }
.info-panel dl { display: flex; flex-direction: column; gap: 1.5rem; }
.info-panel dt { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--grey-cool); }
.info-panel dd { margin: 0.25rem 0 0; font-size: 1.125rem; color: #fff; }
.info-panel dd a { color: var(--cyan-glow); }
.info-panel dd a:hover { text-decoration: underline; }
.info-panel .btn { margin-top: 2rem; }
.map-panel { position: relative; border-radius: 1.75rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.02); overflow: hidden; min-height: 320px; height: 100%; }
.map-panel-content { position: relative; height: 100%; display: flex; align-items: center; justify-content: center; }
.map-pin-badge { display: grid; place-items: center; height: 3.5rem; width: 3.5rem; border-radius: 999px; background: rgba(79,216,255,0.15); border: 1px solid rgba(79,216,255,0.4); }
.map-panel-content .stack { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; }
.map-panel-content .locality { font-size: 0.875rem; color: var(--grey-cool); }

/* Booking form */
.booking-section { position: relative; overflow: hidden; }
.booking-panel { margin-top: 3rem; padding: 1.5rem; }
@media (min-width: 640px) { .booking-panel { padding: 2.5rem; } }
.form-grid { display: grid; gap: 1.25rem; }
@media (min-width: 640px) { .form-grid { grid-template-columns: repeat(2, 1fr); } }
.field { display: flex; flex-direction: column; gap: 0.4rem; font-size: 0.875rem; }
.field.full { grid-column: 1 / -1; }
.field span.label { font-weight: 500; color: var(--grey-mist); }
.field span.label .req { color: var(--cyan-glow); }
.field input, .field select, .field textarea {
  border-radius: 0.75rem; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.05);
  padding: 0.75rem 1rem; color: #fff;
}
.field textarea { resize: none; }
.field input::placeholder, .field textarea::placeholder { color: rgba(166,179,201,0.5); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; box-shadow: 0 0 0 2px var(--cyan-glow); }
.form-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; padding-top: 0.5rem; }
.form-error { grid-column: 1 / -1; font-size: 0.875rem; color: var(--red); }
.success-panel { text-align: center; padding: 2.5rem 0; }
.success-icon { margin: 0 auto 1rem; display: grid; place-items: center; height: 3.5rem; width: 3.5rem; border-radius: 999px; background: rgba(79,216,255,0.15); border: 1px solid rgba(79,216,255,0.4); }
.success-panel h3 { font-size: 1.25rem; }
.success-panel p { margin-top: 0.5rem; color: var(--grey-cool); max-width: 28rem; margin-left: auto; margin-right: auto; }

/* ---- Footer ---- */
.site-footer { background: var(--midnight-950); border-top: 1px solid rgba(255,255,255,0.1); }
.footer-grid { padding: 4rem 0; display: grid; gap: 3rem; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.footer-brand p { margin-top: 0.75rem; max-width: 20rem; font-size: 0.875rem; color: var(--grey-cool); }
.footer-contact { margin-top: 1.5rem; display: flex; flex-direction: column; gap: 0.5rem; font-size: 0.875rem; color: var(--grey-cool); }
.footer-contact a:hover { color: var(--cyan-glow); }
.footer-col h3 { font-size: 0.875rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }
.footer-col ul { margin-top: 1rem; display: flex; flex-direction: column; gap: 0.75rem; }
.footer-col a { font-size: 0.875rem; color: var(--grey-cool); }
.footer-col a:hover { color: var(--cyan-glow); }
.footer-bottom {
  padding: 2rem 0; border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; flex-direction: column; align-items: flex-start; gap: 1rem;
}
@media (min-width: 640px) { .footer-bottom { flex-direction: row; align-items: center; justify-content: space-between; } }
.footer-bottom p { font-size: 0.75rem; color: var(--grey-cool); }
.footer-legal { display: flex; flex-wrap: wrap; gap: 1.5rem; font-size: 0.75rem; color: var(--grey-cool); }
.footer-legal a:hover { color: var(--cyan-glow); }
.footer-disclaimer { padding-bottom: 1.5rem; font-size: 0.6875rem; line-height: 1.6; color: rgba(166,179,201,0.7); max-width: 48rem; }

/* ---- Sticky conversion bar ---- */
.sticky-bar-desktop {
  display: none; position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 40; align-items: center; gap: 0.5rem;
  border-radius: 999px; border: 1px solid rgba(255,255,255,0.1); background: rgba(5,11,26,0.8);
  backdrop-filter: blur(20px); padding: 0.5rem; box-shadow: var(--shadow-panel);
}
@media (min-width: 768px) { .sticky-bar-desktop { display: flex; } }
.icon-btn { display: grid; place-items: center; height: 2.5rem; width: 2.5rem; border-radius: 999px; color: var(--grey-mist); transition: background 0.2s; }
.icon-btn:hover { background: rgba(255,255,255,0.1); }

.sticky-bar-mobile {
  display: flex; position: fixed; left: 0; right: 0; bottom: max(0.75rem, env(safe-area-inset-bottom));
  z-index: 40; gap: 0.5rem; padding: 0 0.75rem;
}
@media (min-width: 768px) { .sticky-bar-mobile { display: none; } }
.sticky-mobile-btn {
  flex: 1; display: grid; place-items: center; border-radius: 1rem; border: 1px solid rgba(255,255,255,0.1);
  background: rgba(5,11,26,0.9); backdrop-filter: blur(20px); color: #fff; padding: 0.75rem 0;
}
.sticky-mobile-book { flex: 2; background: var(--cyan-glow); color: var(--midnight-950); font-size: 0.875rem; font-weight: 600; border: none; }

/* ---- Scroll reveal (IntersectionObserver-driven) ---- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s cubic-bezier(.16,1,.3,1), transform 0.65s cubic-bezier(.16,1,.3,1); }
.reveal.dir-left { transform: translateX(-28px); }
.reveal.dir-right { transform: translateX(28px); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---- Splash preloader (shown once per browser session) ---- */
#preloader {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  background: var(--midnight-950);
  overflow: hidden;
  transition: opacity 0.55s ease, visibility 0.55s ease;
}
#preloader.preloader-hide { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-content {
  position: relative; display: flex; flex-direction: column; align-items: center;
  gap: 1.75rem; padding: 0 1.5rem;
}
.preloader-logo {
  width: min(85vw, 520px); height: auto;
  opacity: 0; transform: scale(0.86);
  animation: preloaderLogoIn 0.75s cubic-bezier(.16,1,.3,1) forwards;
}
.preloader-progress {
  width: min(65vw, 320px); height: 3px; border-radius: 999px;
  background: rgba(255,255,255,0.1); overflow: hidden;
}
.preloader-progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(to right, var(--medical-blue-500), var(--cyan-glow));
  box-shadow: 0 0 12px rgba(79,216,255,0.6);
  transition: width 1.3s cubic-bezier(.16,1,.3,1);
}
@keyframes preloaderLogoIn {
  0% { opacity: 0; transform: scale(0.86); }
  60% { opacity: 1; transform: scale(1.03); }
  100% { opacity: 1; transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  #preloader { display: none; }
}

/* ---- Scroll progress bar ---- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%; z-index: 60;
  background: linear-gradient(to right, var(--medical-blue-500), var(--cyan-glow));
  box-shadow: 0 0 12px rgba(79,216,255,0.6);
  transition: width 0.1s linear;
}

/* ---- Back to top ---- */
.back-to-top {
  position: fixed; right: 1.5rem; bottom: 1.5rem; z-index: 39;
  display: grid; place-items: center; height: 2.75rem; width: 2.75rem; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12); background: rgba(5,11,26,0.85); backdrop-filter: blur(16px);
  color: var(--grey-mist); box-shadow: var(--shadow-panel);
  opacity: 0; pointer-events: none; transform: translateY(12px) scale(0.9);
  transition: opacity 0.3s ease, transform 0.3s ease, border-color 0.2s ease, color 0.2s ease;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }
.back-to-top:hover { border-color: rgba(79,216,255,0.4); color: var(--cyan-glow); }
@media (min-width: 768px) { .back-to-top { bottom: 1.5rem; } }
@media (max-width: 767px) { .back-to-top { bottom: 5.5rem; right: 1rem; height: 2.5rem; width: 2.5rem; } }

/* ---- Service detail page layout ---- */
.service-detail-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 1024px) { .service-detail-grid { grid-template-columns: 1fr 320px; } }

/* ---- Dynamic content panels (hotspot/process/journey) fade on swap ---- */
.panel-fade { transition: opacity 0.18s ease; }

/* ---- Hero scroll parallax (JS sets an inline transform/opacity on scroll) ---- */
#hero-canvas-wrap { will-change: transform, opacity; }
@media (prefers-reduced-motion: reduce) {
  #hero-canvas-wrap { transform: none !important; opacity: 1 !important; }
  .back-to-top { transition: opacity 0.01ms; }
}