/* ============================================================
   Lumina Landing — Design System
   Inspired by QuietAuthority: Newsreader + Manrope + Inter
   ============================================================ */

:root {
  /* — Palette — */
  --primary: #3d5a99;
  --primary-dark: #2c4578;
  --primary-light: #5a78c2;
  --on-primary: #ffffff;
  --surface: #fbfcff;
  --surface-dim: #f0f1f4;
  --surface-container: #f1f4f9;
  --on-surface: #1a1c1e;
  --on-surface-variant: #5a5e70;
  --outline: #757682;
  --outline-variant: #d9dfe9;
  --lavender-50: #f5f3ff;
  --lavender-100: #ede9fe;
  --lavender-200: #ddd6fe;
  --white-40: rgba(255,255,255,0.4);
  --white-80: rgba(255,255,255,0.8);

  /* — Typography — */
  --font-serif: "Newsreader", Georgia, serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --font-label: "Manrope", sans-serif;

  /* — Spacing & Radius — */
  --max-w: 1200px;
  --nav-h: 80px;
  --radius: 0.75rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* — Shadows — */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 25px rgba(0,0,0,0.07);
  --shadow-lg: 0 25px 50px rgba(0,0,0,0.10);
  --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.18);

  /* — Motion — */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --speed: 0.4s;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  font-family: var(--font-body);
  color: var(--on-surface);
  background: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* Same LuminaAnimatedMark animation contract used by packages/ui/src/index.tsx. */
.lumina-animated-mark {
  --lumina-mark-size: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--lumina-mark-size);
  height: var(--lumina-mark-size);
}

.lumina-animated-mark-svg {
  display: block;
  width: 100%;
  height: 100%;
}

.lumina-animated-mark-circles {
  isolation: isolate;
  transform-origin: 200px 200px;
}

.lumina-animated-mark-circle {
  opacity: 0.92;
  mix-blend-mode: screen;
}

.lumina-animated-mark-breathing {
  transform-origin: 200px 200px;
}

.lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circles {
  animation: luminaMarkSpinIn 1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circle--tl {
  animation: luminaMarkLockTL 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.04s both;
}

.lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circle--tr {
  animation: luminaMarkLockTR 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.08s both;
}

.lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circle--bl {
  animation: luminaMarkLockBL 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.04s both;
}

.lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circle--br {
  animation: luminaMarkLockBR 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.08s both;
}

.lumina-animated-mark[data-breathing="true"] .lumina-animated-mark-breathing {
  animation: luminaMarkBreath 12s ease-in-out 1.4s infinite alternate;
}

@keyframes luminaMarkSpinIn {
  0% {
    transform: rotate(-90deg) scale(0.55);
    opacity: 0;
  }
  100% {
    transform: rotate(0deg) scale(1);
    opacity: 1;
  }
}

@keyframes luminaMarkLockTL {
  0% {
    transform: translate(-60px, -60px);
    opacity: 0;
  }
  100% {
    transform: translate(0, 0);
    opacity: 0.92;
  }
}

@keyframes luminaMarkLockTR {
  0% {
    transform: translate(60px, -60px);
    opacity: 0;
  }
  100% {
    transform: translate(0, 0);
    opacity: 0.92;
  }
}

@keyframes luminaMarkLockBL {
  0% {
    transform: translate(-60px, 60px);
    opacity: 0;
  }
  100% {
    transform: translate(0, 0);
    opacity: 0.92;
  }
}

@keyframes luminaMarkLockBR {
  0% {
    transform: translate(60px, 60px);
    opacity: 0;
  }
  100% {
    transform: translate(0, 0);
    opacity: 0.92;
  }
}

@keyframes luminaMarkBreath {
  0% {
    transform: rotate(-1deg) scale(0.995);
  }
  100% {
    transform: rotate(1deg) scale(1.005);
  }
}

@media (prefers-reduced-motion: reduce) {
  .lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circles,
  .lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circle--tl,
  .lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circle--tr,
  .lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circle--bl,
  .lumina-animated-mark[data-animated="true"] .lumina-animated-mark-circle--br,
  .lumina-animated-mark[data-breathing="true"] .lumina-animated-mark-breathing {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    animation-iteration-count: 1 !important;
  }
}

::selection {
  background: var(--lavender-200);
  color: var(--primary);
}

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ---- Container ---- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- Buttons ---- */
.btn-solid,
.btn-outline,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  transition: all var(--speed) var(--ease);
  cursor: pointer;
  white-space: nowrap;
}

.btn-solid {
  padding: 10px 24px;
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  box-shadow: 0 8px 20px rgba(61,90,153,0.2);
}
.btn-solid:hover {
  box-shadow: 0 12px 28px rgba(61,90,153,0.3);
  transform: translateY(-1px);
}
.btn-solid:active,
.btn-outline:active {
  transform: translateY(1px) scale(0.98);
  box-shadow: none;
  transition-duration: 0.08s;
}

.btn-outline {
  padding: 10px 24px;
  background: var(--white-40);
  color: var(--primary);
  border: 1px solid var(--outline-variant);
  backdrop-filter: blur(4px);
}
.btn-outline:hover {
  background: #fff;
  border-color: var(--lavender-200);
}

.btn-ghost {
  padding: 8px 16px;
  background: transparent;
  color: var(--primary);
  border: none;
}
.btn-ghost:hover { background: var(--lavender-50); }

.btn-lg {
  padding: 14px 36px;
  font-size: 12px;
}

/* ================================================================
   NAVIGATION
   ================================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(209, 217, 235, 0.58);
  box-shadow: 0 14px 32px rgba(46, 72, 117, 0.06);
  transition: background var(--speed) var(--ease), box-shadow var(--speed) var(--ease);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(148px, 0.8fr) auto minmax(228px, 0.9fr);
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 0.7rem;
  min-height: 40px;
  color: #1f3658;
  text-decoration: none;
}

.nav-brand-mark {
  --lumina-mark-size: 30px;
  flex-shrink: 0;
  filter: drop-shadow(0 8px 16px rgba(61,90,153,0.16));
}

.nav-brand-wordmark {
  font-family: var(--font-label);
  font-size: 1.16rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: #1f3658;
  transform: translateY(-1px);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.25rem, 2vw, 2rem);
  min-height: 40px;
}

.nav-link {
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.095em;
  color: var(--on-surface-variant);
  transition: color 0.3s;
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  line-height: 1.2;
  text-align: center;
}
.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: 1px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  opacity: 0.45;
  transition: width 0.3s var(--ease);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
  background: var(--primary);
  opacity: 0.45;
}

.nav-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  min-height: 40px;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ================================================================
   HERO
   ================================================================ */
.hero {
  position: relative;
  min-height: 870px;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 0% 10%, rgba(224,231,255,0.45) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 100% 80%, rgba(210,220,255,0.25) 0%, transparent 55%),
    linear-gradient(165deg, #f7f8ff 0%, #f2f5ff 50%, #eff3ff 100%);
}

/* Floating orb top-right — z-index:0 keeps it strictly in the background layer */
.hero::before {
  content: "";
  position: absolute;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(100,130,210,0.08) 0%, transparent 68%);
  top: -180px;
  right: -120px;
  animation: hero-orb-a 22s ease-in-out infinite;
  pointer-events: none;
  will-change: transform;
  z-index: 0;
}

/* Floating orb bottom-left */
.hero::after {
  content: "";
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61,90,153,0.06) 0%, transparent 70%);
  bottom: -140px;
  left: -80px;
  animation: hero-orb-b 28s ease-in-out infinite;
  pointer-events: none;
  will-change: transform;
  z-index: 0;
}

@keyframes hero-orb-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(24px, -28px) scale(1.04); }
  66% { transform: translate(-18px, 18px) scale(0.97); }
}

@keyframes hero-orb-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40% { transform: translate(-20px, 24px) scale(1.03); }
  70% { transform: translate(14px, -18px) scale(0.98); }
}

.hero-fade-right {
  position: absolute;
  top: 0;
  right: 0;
  width: 33%;
  height: 100%;
  background: linear-gradient(to left, rgba(224,230,255,0.18), transparent);
  pointer-events: none;
  z-index: 0;
}

/* Grain noise overlay — fixed, pointer-events-none to avoid GPU repaints */
.hero-grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 4rem 0;
  position: relative;
  z-index: 1;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.kicker-pill {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--lavender-100);
  padding: 6px 14px 6px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
  border: 1px solid var(--lavender-200);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 6vw, 4.5rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--primary);
  margin-bottom: 1.5rem;
}
.hero-title em {
  font-style: italic;
  opacity: 0.7;
}

.hero-desc {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--on-surface-variant);
  max-width: 32rem;
  margin-bottom: 2.5rem;
}

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

/* Hero Visual — Mockup */
.hero-visual {
  position: relative;
  z-index: 2;
  padding: 0 0 5rem 4.25rem;
}

.hero-mockup {
  position: relative;
  z-index: 2;
  width: min(100%, 470px);
  margin-left: auto;
  background: rgba(255,255,255,0.88);
  border: 1px solid rgba(255,255,255,0.72);
  border-radius: var(--radius-xl);
  box-shadow:
    var(--shadow-xl),
    inset 0 1px 0 rgba(255,255,255,0.9);
  overflow: hidden;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.mockup-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--outline-variant);
  background: rgba(255,255,255,0.6);
}

.mockup-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lavender-200);
}

.mockup-label {
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 600;
  color: var(--on-surface-variant);
  letter-spacing: 0.04em;
}

.mockup-body {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 14px;
  padding: 16px;
}

.mockup-card {
  background: #fff;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 16px;
}

.mockup-kicker {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--primary);
  background: var(--lavender-50);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  margin-bottom: 8px;
}

.mockup-card-main strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 12px;
  line-height: 1.2;
}

.mockup-bars {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}
.mockup-bars span {
  display: block;
  height: 10px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, rgba(61,90,153,0.5), var(--lavender-100));
}

.mockup-stats {
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--outline-variant);
  padding-top: 12px;
}
.mockup-stats > div {
  flex: 1;
}
.mockup-stats span {
  display: block;
  font-family: var(--font-label);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--on-surface-variant);
}
.mockup-stats strong {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--primary);
}

.mockup-sidebar {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mockup-card-sm {
  padding: 12px;
}
.mockup-card-sm span {
  display: block;
  font-family: var(--font-label);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--on-surface-variant);
  margin-bottom: 4px;
}
.mockup-card-sm strong {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--primary);
}

.mockup-card-accent {
  background: var(--lavender-50);
  border-color: var(--lavender-100);
}

.mockup-network {
  background: #fff;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 12px;
  flex: 1;
}
.mockup-network svg {
  width: 100%;
  max-height: 100px;
  margin-top: 6px;
}

/* Hero Quote */
.hero-quote {
  position: absolute;
  bottom: -1.9rem;
  left: 1rem;
  width: min(330px, 76%);
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  padding: 1.25rem 1.4rem 1.25rem;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255,255,255,0.72);
  box-shadow:
    0 16px 40px rgba(61,90,153,0.12),
    inset 0 1px 0 rgba(255,255,255,0.9);
  z-index: 3;
}

.hero-quote-eyebrow {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0.75rem;
  font-family: var(--font-label);
  font-size: 0.56rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--primary);
  opacity: 0.82;
}

.hero-quote p {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--primary);
  opacity: 0.82;
  margin-bottom: 0;
}

.hero-quote-author {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 0.875rem;
  padding-top: 0.875rem;
  border-top: 1px solid rgba(61,90,153,0.1);
}

.hero-quote-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 2px solid rgba(255,255,255,0.95);
  box-shadow: 0 2px 10px rgba(61,90,153,0.18);
  flex-shrink: 0;
}

.hero-quote-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-quote-name {
  font-family: var(--font-label);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.01em;
  line-height: 1;
}

.hero-quote-role {
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 500;
  color: var(--on-surface-variant);
  letter-spacing: 0.01em;
  line-height: 1;
}

/* ================================================================
   SECTIONS (common)
   ================================================================ */
.section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  max-width: 42rem;
  margin: 0 auto 4rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  color: var(--primary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-desc {
  font-size: 1rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
}

/* ================================================================
   FEATURES (01/02/03 grid)
   ================================================================ */
.section-features {
  background: var(--white-40);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.section-header--left {
  text-align: left;
  max-width: 42rem;
  margin: 0 0 4rem;
}

/* ---- Zig-zag feature rows ---- */
.features-zigzag {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.fz-row {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 2.5rem;
  align-items: center;
  padding: 2.5rem 2.75rem;
  border-radius: var(--radius-xl);
  background: var(--white-80);
  border: 1px solid #fff;
  transition: all 0.5s var(--ease);
}
.fz-row:hover {
  border-color: var(--lavender-200);
  box-shadow: 0 16px 36px rgba(237,233,254,0.3);
}

.fz-row--reverse {
  grid-template-columns: 0.7fr 1.3fr;
  direction: rtl;
}
.fz-row--reverse > * { direction: ltr; }

.fz-row--hierarchy-focus {
  grid-template-columns: minmax(17rem, 0.6fr) minmax(0, 1.4fr);
  gap: clamp(2.25rem, 3vw, 3.4rem);
  align-items: center;
}

.fz-row--hierarchy-focus .fz-text {
  max-width: 23rem;
  justify-self: end;
}

.fz-text { }

.feature-number {
  display: block;
  font-family: var(--font-label);
  font-size: 2rem;
  font-weight: 900;
  color: var(--lavender-200);
  margin-bottom: 1rem;
  opacity: 0.45;
  transition: opacity 0.5s;
}
.fz-row:hover .feature-number { opacity: 1; }

.fz-text h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 0.6rem;
  line-height: 1.2;
}

.fz-text p {
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  line-height: 1.68;
  max-width: 44ch;
}

/* ---- Accent visuals (right side of each row) ---- */
.fz-accent {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.75rem;
  border-radius: var(--radius-xl);
  background: var(--lavender-50);
  border: 1px solid rgba(221,214,254,0.5);
  min-height: 140px;
  box-shadow: 0 4px 16px rgba(61,90,153,0.04);
  transition: box-shadow 0.4s var(--ease);
}
.fz-row:hover .fz-accent {
  box-shadow: 0 8px 28px rgba(61,90,153,0.08);
}

.fz-accent-label {
  font-family: var(--font-label);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--on-surface-variant);
  opacity: 0.45;
  margin-top: 0.85rem;
}

/* -- Graph accent -- */
.fz-accent--graph svg { width: 100%; max-height: 90px; }

/* -- Layers accent -- */
.fz-accent--layers {
  gap: 0.8rem;
  width: 100%;
  padding: 1.5rem 1.75rem;
}
.fz-layer {
  padding: 0.75rem 1.25rem;
  border-radius: 12px;
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: center;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s var(--ease);
}
.fz-layer--1 { background: rgba(61,90,153,0.08); color: rgba(61,90,153,0.75); border: 1px solid rgba(61,90,153,0.14); }
.fz-layer--2 { background: rgba(61,90,153,0.1); color: var(--primary); border: 1px solid rgba(61,90,153,0.15); box-shadow: 0 4px 10px rgba(61,90,153,0.05); }
.fz-layer--3 { background: linear-gradient(135deg, var(--primary), #5a75b3); color: #fff; box-shadow: 0 6px 16px rgba(61,90,153,0.25); border: 1px solid rgba(255,255,255,0.1); }
.fz-row:hover .fz-layer--1 { transform: translateY(-4px); }
.fz-row:hover .fz-layer--2 { transform: translateY(0); }
.fz-row:hover .fz-layer--3 { transform: translateY(4px); box-shadow: 0 8px 24px rgba(61,90,153,0.3); }

/* -- Gate accent -- */
.fz-accent--gate { gap: 0.8rem; width: 100%; }
.fz-gate {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 0.8rem 1.25rem;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--outline-variant);
  box-shadow: 0 4px 16px rgba(61,90,153,0.06);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s var(--ease);
}
.fz-row:hover .fz-gate { transform: translateX(5px); box-shadow: 0 6px 20px rgba(61,90,153,0.12); }
.fz-gate--fail { opacity: 0.65; box-shadow: none; border: 1px dashed rgba(61,90,153,0.2); background: rgba(255,255,255,0.5); }
.fz-row:hover .fz-gate--fail { transform: translateX(2px); }
.fz-gate-label {
  display: flex;
  flex-direction: column;
}
.fz-gate-symbol {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.05em;
}
.fz-gate-status {
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}
.fz-gate-status svg {
  flex-shrink: 0;
}
.fz-gate-status--pass { color: #0b8f65; }
.fz-gate-status--block { color: #d97706; }

/* -- GAS Evolução global chart accent -- */
.fz-accent--gas {
  gap: 0;
  padding: 0;
  background: #fff;
  border: 1px solid rgba(61,90,153,0.08);
  box-shadow: 0 8px 24px rgba(61,90,153,0.05);
  overflow: hidden;
}
.fz-gas-chart {
  width: 100%;
  padding: 1.25rem 1.5rem 1rem;
}
.fz-gas-chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.15rem;
}
.fz-gas-chart-header strong {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--on-surface);
}
.fz-gas-chart-badge {
  font-family: var(--font-label);
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  background: var(--surface-container);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  border: 1px solid var(--outline-variant);
}
.fz-gas-chart-sub {
  display: block;
  font-family: var(--font-label);
  font-size: 0.68rem;
  color: var(--on-surface-variant);
  opacity: 0.6;
  margin-bottom: 0.75rem;
}
.fz-gas-line-chart {
  width: 100%;
  height: auto;
  margin-bottom: 0.85rem;
}
.fz-gas-distribution {
  border-top: 1px solid var(--outline-variant);
  padding-top: 0.65rem;
}
.fz-gas-dist-label {
  display: block;
  font-family: var(--font-label);
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--on-surface-variant);
  opacity: 0.5;
  margin-bottom: 0.45rem;
}
.fz-gas-dist-row {
  display: flex;
  gap: 4px;
}
.fz-gas-dist-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.35rem 0;
  border-radius: 6px;
  transition: transform 0.3s var(--ease);
}
.fz-gas-dist-item strong {
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
}
.fz-gas-dist-item em {
  font-style: normal;
  font-family: var(--font-label);
  font-size: 0.62rem;
  opacity: 0.5;
  margin-top: 2px;
}
.fz-gas-dist--m2 { background: rgba(239,68,68,0.08); }
.fz-gas-dist--m2 strong { color: #ef4444; }
.fz-gas-dist--m1 { background: rgba(245,158,11,0.08); }
.fz-gas-dist--m1 strong { color: #f59e0b; }
.fz-gas-dist--z0 { background: rgba(107,114,128,0.06); }
.fz-gas-dist--z0 strong { color: #6b7280; }
.fz-gas-dist--p1 { background: rgba(16,185,129,0.08); }
.fz-gas-dist--p1 strong { color: #10b981; }
.fz-gas-dist--p2 { background: rgba(5,150,105,0.1); }
.fz-gas-dist--p2 strong { color: #059669; }
.fz-row:hover .fz-gas-dist-item { transform: translateY(-1px); }

/* -- Network SVG accent -- */
.fz-accent--network {
  background: transparent;
  border: none;
  padding: 0.5rem;
}
.fz-accent--network svg { width: 100%; max-height: 200px; }

/* -- Hierarchy accent — real app screenshot -- */
.fz-accent--hierarchy {
  gap: 0;
  width: 100%;
  padding: 0;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
  border: none;
  overflow: visible;
  align-items: stretch;
}

.fz-row--hierarchy-focus .fz-accent--hierarchy {
  position: relative;
  padding: 0.1rem 0 0.5rem;
}

.fz-row--hierarchy-focus .fz-accent--hierarchy::before {
  content: "";
  position: absolute;
  inset: auto 3% -6% auto;
  width: 42%;
  height: 26%;
  background: radial-gradient(circle, rgba(118, 151, 221, 0.2) 0%, transparent 72%);
  filter: blur(24px);
  pointer-events: none;
}

.fz-hierarchy-capture {
  margin: 0;
  width: min(100%, 49rem);
  border-radius: 30px;
  overflow: hidden;
  padding: 1rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.99), rgba(242,247,255,0.95));
  box-shadow:
    0 28px 64px rgba(61,90,153,0.16),
    0 4px 12px rgba(61,90,153,0.07),
    inset 0 1px 0 rgba(255,255,255,0.9);
  border: 1px solid rgba(197,212,239,0.86);
  position: relative;
}

.fz-hierarchy-capture::before {
  content: "";
  position: absolute;
  inset: -18% 46% auto -10%;
  height: 88%;
  background: radial-gradient(circle, rgba(133, 164, 225, 0.24) 0%, transparent 70%);
  pointer-events: none;
}

/* Top edge gloss line */
.fz-hierarchy-capture::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(255,255,255,0.85);
  border-radius: 22px 22px 0 0;
  pointer-events: none;
}

.fz-hierarchy-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 0.8rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(197,212,239,0.9);
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-family: var(--font-label);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  box-shadow: 0 8px 18px rgba(61,90,153,0.08);
}

.fz-hierarchy-viewport {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border-radius: 22px;
  min-height: clamp(246px, 24vw, 296px);
  aspect-ratio: 2.72 / 1;
  background: linear-gradient(180deg, #f8fbff 0%, #edf4ff 100%);
  isolation: isolate;
}

.fz-hierarchy-viewport::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 34%;
  background: linear-gradient(180deg, rgba(237,244,255,0) 0%, rgba(237,244,255,0.94) 100%);
  pointer-events: none;
  z-index: 1;
}

.fz-hierarchy-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 46% 20%;
  vertical-align: bottom;
  transform: scale(1.05);
  transform-origin: center top;
  filter: saturate(1.03) contrast(1.04);
  transition: transform 0.55s var(--ease), object-position 0.55s var(--ease), filter 0.55s var(--ease);
}
.fz-hierarchy-capture:hover .fz-hierarchy-img {
  transform: scale(1.08);
  object-position: 47% 22%;
  filter: saturate(1.05) contrast(1.06);
}

.fz-hierarchy-focus-card {
  position: absolute;
  left: clamp(1rem, 1.8vw, 1.35rem);
  bottom: clamp(1rem, 1.8vw, 1.2rem);
  z-index: 2;
  width: min(19.5rem, calc(100% - 2rem));
  padding: 0.88rem 0.95rem 0.92rem;
  border-radius: 18px;
  background: rgba(255,255,255,0.82);
  border: 1px solid rgba(197,212,239,0.84);
  backdrop-filter: blur(12px) saturate(1.18);
  -webkit-backdrop-filter: blur(12px) saturate(1.18);
  box-shadow:
    0 18px 42px rgba(61,90,153,0.16),
    inset 0 1px 0 rgba(255,255,255,0.92);
}

.fz-hierarchy-focus-kicker {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0.45rem;
  font-family: var(--font-label);
  font-size: 0.56rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  opacity: 0.76;
}

.fz-hierarchy-focus-card strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--primary);
}

.fz-hierarchy-focus-card p {
  margin-top: 0.38rem;
  font-size: 0.71rem;
  line-height: 1.5;
  color: #5c6e94;
  max-width: 31ch;
}

.fz-hierarchy-caption {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.85rem;
  padding-left: 0.15rem;
}

.fz-hierarchy-caption span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(197,212,239,0.72);
  background: rgba(255,255,255,0.74);
  font-family: var(--font-label);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: #6680b4;
}

/* -- Hierarchy v2 — custom-built panel (replaces screenshot) -- */
.fz-accent--hierarchy-v2 {
  gap: 0;
  width: 100%;
  padding: 0;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
  border: none;
  overflow: visible;
  align-items: stretch;
}

.hpanel {
  width: 100%;
  max-width: 32rem;
  border-radius: 20px;
  background: #fff;
  border: 1px solid rgba(197,212,239,0.55);
  box-shadow:
    0 1px 2px rgba(61,90,153,0.04),
    0 8px 24px rgba(61,90,153,0.07),
    0 24px 48px rgba(61,90,153,0.05);
  overflow: hidden;
  transition: box-shadow 0.5s var(--ease), transform 0.5s var(--ease);
}
.fz-row:hover .hpanel {
  box-shadow:
    0 1px 2px rgba(61,90,153,0.04),
    0 12px 32px rgba(61,90,153,0.1),
    0 32px 64px rgba(61,90,153,0.07);
  transform: translateY(-2px);
}

.hpanel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid rgba(197,212,239,0.35);
  background: linear-gradient(180deg, rgba(245,243,255,0.6) 0%, rgba(255,255,255,0) 100%);
}

.hpanel-badge {
  font-family: var(--font-label);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--lavender-50);
  border: 1px solid var(--lavender-100);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.hpanel-window {
  font-family: var(--font-label);
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  opacity: 0.55;
  letter-spacing: 0.02em;
}

.hpanel-items {
  display: flex;
  flex-direction: column;
  padding: 0.25rem 0;
}

.hpanel-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.78rem 1.25rem;
  transition: background 0.3s var(--ease);
  position: relative;
}
.hpanel-item:hover {
  background: rgba(245,243,255,0.5);
}
.hpanel-item--1 {
  background: linear-gradient(90deg, rgba(61,90,153,0.03) 0%, transparent 70%);
}

/* Subtle separator between items */
.hpanel-item + .hpanel-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.25rem;
  right: 1.25rem;
  height: 1px;
  background: rgba(197,212,239,0.3);
}

.hpanel-pos {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 800;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.fz-row:hover .hpanel-pos { transform: scale(1.08); }
.hpanel-item--1 .hpanel-pos { background: var(--primary); color: #fff; box-shadow: 0 3px 10px rgba(61,90,153,0.25); }
.hpanel-item--2 .hpanel-pos { background: var(--lavender-100); color: var(--primary); }
.hpanel-item--3 .hpanel-pos { background: var(--lavender-50); color: var(--primary); }
.hpanel-item--4 .hpanel-pos { background: var(--surface-container); color: var(--on-surface-variant); }

.hpanel-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.hpanel-name-row {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
}

.hpanel-name {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 650;
  color: var(--on-surface);
  letter-spacing: -0.01em;
}

.hpanel-abbr {
  font-family: var(--font-label);
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--primary);
  opacity: 0.4;
  letter-spacing: 0.04em;
}

.hpanel-bar-track {
  height: 6px;
  border-radius: 3px;
  background: var(--surface-container);
  overflow: hidden;
}

.hpanel-bar-fill {
  display: block;
  height: 100%;
  width: var(--w);
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  transition: width 1s var(--ease);
}
.hpanel-item--3 .hpanel-bar-fill,
.hpanel-item--4 .hpanel-bar-fill {
  background: linear-gradient(90deg, var(--primary-light) 0%, var(--lavender-200) 100%);
}

.hpanel-meta-row {
  display: flex;
  gap: 0.4rem;
}

.hpanel-tag {
  font-family: var(--font-label);
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 1px 6px;
  border-radius: 4px;
}
.hpanel-tag--inf {
  background: rgba(61,90,153,0.06);
  color: var(--primary);
}
.hpanel-tag--sev {
  background: rgba(245,158,11,0.08);
  color: #b45309;
}

.hpanel-score {
  flex-shrink: 0;
  font-family: var(--font-label);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--primary);
  opacity: 0.75;
  min-width: 2.8rem;
  text-align: right;
  letter-spacing: -0.03em;
  transition: opacity 0.35s var(--ease);
}
.hpanel-item--1 .hpanel-score { opacity: 1; }
.hpanel-item--3 .hpanel-score,
.hpanel-item--4 .hpanel-score { opacity: 0.4; }

.hpanel-footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid rgba(197,212,239,0.35);
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(245,243,255,0.4) 100%);
}

.hpanel-insight {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.55rem;
  font-family: var(--font-body);
  font-size: 0.73rem;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.4;
}

.hpanel-insight-dot {
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  animation: hpanel-dot-pulse 2.5s ease-in-out infinite;
}
@keyframes hpanel-dot-pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.3); }
}

.hpanel-footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hpanel-stability {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-label);
  font-size: 0.58rem;
  font-weight: 700;
  color: #10b981;
  letter-spacing: 0.04em;
}

.hpanel-adherence {
  font-family: var(--font-label);
  font-size: 0.58rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  opacity: 0.45;
}

/* hpanel responsive */
@media (max-width: 768px) {
  .hpanel { max-width: none; }
  .hpanel-item { padding: 0.6rem 1rem; gap: 0.55rem; }
  .hpanel-score { font-size: 0.88rem; min-width: 2rem; }
  .hpanel-meta-row { display: none; }
}

.fz-rank {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.2rem 0;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.fz-row:hover .fz-rank { transform: scale(1.02); transform-origin: left; }
.fz-rank-pos {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(61,90,153,0.2);
}
.fz-rank:nth-child(2) .fz-rank-pos { background: rgba(61,90,153,0.8); box-shadow: none; color: #fff;}
.fz-rank:nth-child(3) .fz-rank-pos { background: rgba(61,90,153,0.6); box-shadow: none; color: #fff;}
.fz-rank-name {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--on-surface);
  font-weight: 600;
  min-width: 6.5rem;
  letter-spacing: -0.01em;
}
.fz-rank-meter {
  display: block;
  flex: 1;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), #a3b5da);
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}

/* ================================================================
   METHODOLOGY (steps + phone mockup)
   ================================================================ */
.section-method {
  background: var(--surface);
}

.method-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 4.5rem;
  align-items: center;
}

.method-copy .section-title {
  text-align: left;
  max-width: 13ch;
  margin-bottom: 3rem;
  text-wrap: balance;
}

.method-steps {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.method-step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  max-width: 34rem;
}

.step-circle {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--lavender-200);
  display: grid;
  place-items: center;
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 14px;
  color: var(--primary);
  transition: all 0.5s;
}

.method-step:hover .step-circle {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.method-step h4 {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  color: var(--primary);
  margin-bottom: 0.45rem;
  line-height: 1.18;
}

.method-step p {
  font-size: 0.94rem;
  color: var(--on-surface-variant);
  line-height: 1.72;
  max-width: 31ch;
}

.method-visual {
  display: flex;
  justify-content: center;
}

.method-visual-shell {
  position: relative;
  width: min(100%, 410px);
  padding: 0.85rem 0.85rem 0;
}

.method-capture-frame {
  position: relative;
  overflow: visible;
  margin: 0;
  border-radius: 2rem;
  padding: 0.72rem;
  background:
    linear-gradient(180deg, rgba(253, 254, 255, 0.98), rgba(240, 245, 255, 0.95));
  box-shadow:
    0 24px 52px rgba(84, 106, 157, 0.15);
}

.method-capture-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow:
    inset 0 0 0 1px rgba(197, 212, 239, 0.92),
    inset 0 1px 0 rgba(255,255,255,0.96);
}

.method-capture-viewport {
  overflow: visible;
  border-radius: 0;
  background: transparent;
  position: relative;
  z-index: 1;
}

.method-capture-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0;
  transform: none;
  box-shadow: none;
  vertical-align: bottom;
}

.method-visual-caption {
  margin-top: 1.1rem;
  padding-top: 0.95rem;
  padding-left: 0.1rem;
  max-width: 36ch;
  border-top: 1px solid rgba(199, 213, 238, 0.72);
}

.method-visual-caption-title {
  margin: 0 0 0.44rem;
  font-family: var(--font-serif);
  font-size: clamp(1.44rem, 1.95vw, 1.88rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--primary);
  text-wrap: balance;
}

.method-visual-caption-title span {
  display: block;
  margin-top: 0.1rem;
  font-style: italic;
  font-weight: 600;
  color: #6f86b8;
}

.method-visual-caption-copy {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.62;
  color: #5f7298;
}

/* ================================================================
   THERAPIST CARDS
   ================================================================ */
.section-therapist {
  background: var(--surface-container);
}

.therapist-grid,
.patient-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.therapist-card,
.patient-card {
  background: var(--white-80);
  border: 1px solid #fff;
  border-radius: var(--radius-xl);
  padding: 2rem;
  transition: all 0.5s var(--ease);
}
.therapist-card:hover,
.patient-card:hover {
  border-color: var(--lavender-200);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.card-icon {
  font-size: 2rem;
  color: var(--primary);
  opacity: 0.6;
  margin-bottom: 1.25rem;
  display: block;
}

.therapist-card h3,
.patient-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.therapist-card p,
.patient-card p {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  line-height: 1.65;
}

/* ================================================================
   PATIENTS
   ================================================================ */
.patient-grid {
  grid-template-columns: repeat(3, 1fr);
}

/* ================================================================
   DARK SECTION (Stats / Security)
   ================================================================ */
.section-dark {
  position: relative;
  padding: 8rem 0;
  overflow: hidden;
}

.section-dark-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 15% 20%, rgba(90,120,198,0.35) 0%, transparent 55%),
    radial-gradient(ellipse 55% 50% at 88% 80%, rgba(44,69,120,0.4) 0%, transparent 55%),
    linear-gradient(150deg, #1e3a7a 0%, #2c4578 40%, #243d70 100%);
  opacity: 1;
}

.section-dark-inner {
  position: relative;
  z-index: 1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 5rem;
}

.stat-card {
  background: rgba(61,90,153,0.05);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 2rem;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255,255,255,0.1);
  text-align: center;
}

.stat-value {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: #fff;
  margin-bottom: 0.75rem;
}

.stat-label {
  font-family: var(--font-label);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgba(237,233,254,0.6);
  line-height: 1.5;
}

.dark-quote {
  max-width: 56rem;
  margin: 0 auto;
  text-align: center;
  padding-top: 5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.dark-quote p {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.5rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.9);
}

/* ================================================================
   INSTALLATION
   ================================================================ */
.install-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.install-card {
  background: #fff;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  transition: all 0.5s var(--ease);
}
.install-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--lavender-200);
}

.install-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 1.5rem;
}

.install-logo {
  width: 36px;
  height: 36px;
}

.install-icon-ios {
  font-size: 2rem;
  color: var(--primary);
}

.install-overline {
  display: block;
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--on-surface-variant);
  margin-bottom: 2px;
}

.install-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--primary);
  line-height: 1.2;
}

.install-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.install-steps li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
}

.install-steps span {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--lavender-100);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 800;
}

/* ================================================================
   CTA
   ================================================================ */
.section-cta {
  padding: 10rem 0;
  position: relative;
  overflow: hidden;
}

.section-cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.section-cta .section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.section-cta .section-desc {
  max-width: 36rem;
  margin: 0 auto 2.5rem;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.cta-glow {
  position: absolute;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.cta-glow-left {
  bottom: 0;
  left: 25%;
  background: rgba(237,233,254,0.3);
}
.cta-glow-right {
  top: 0;
  right: 25%;
  background: rgba(219,234,254,0.3);
}

/* ================================================================
   LEGAL
   ================================================================ */
.section-legal {
  padding: 4rem 0;
  background: var(--surface-container);
}

.legal-duo {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.legal-block {
  background: #fff;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-xl);
  padding: 2rem;
}

.legal-block h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.legal-block p {
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  line-height: 1.65;
}

/* ================================================================
   FOOTER
   ================================================================ */
.footer {
  border-top: 1px solid var(--lavender-100);
  background: #fff;
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.78rem;
  margin-bottom: 1rem;
}

.footer-brand-mark {
  --lumina-mark-size: 22px;
  flex-shrink: 0;
  filter: drop-shadow(0 8px 16px rgba(61,90,153,0.14));
}

.footer-brand-wordmark {
  font-family: var(--font-label);
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: #1f3658;
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  line-height: 1.65;
  max-width: 24rem;
  opacity: 0.7;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col strong {
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--on-surface);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  transition: color 0.3s;
}
.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--outline-variant);
  font-family: var(--font-label);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--on-surface-variant);
  opacity: 0.4;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-visual { max-width: 480px; margin: 0 auto; padding: 0 0 5rem; }
  .fz-row,
  .fz-row--reverse { grid-template-columns: 1fr; }
  .fz-row--reverse { direction: ltr; }
  .fz-row--hierarchy-focus .fz-text { max-width: none; justify-self: start; }
  .fz-hierarchy-capture { width: 100%; }
  .fz-hierarchy-viewport {
    min-height: clamp(236px, 38vw, 300px);
    aspect-ratio: 2.26 / 1;
  }
  .fz-hierarchy-img {
    transform: scale(1.12);
    object-position: 47% 22%;
  }
  .fz-hierarchy-focus-card {
    width: min(24rem, calc(100% - 2rem));
  }
  .method-grid { grid-template-columns: 1fr; gap: 3rem; }
  .method-copy .section-title,
  .method-step p { max-width: none; }
  .method-visual-shell { width: min(100%, 440px); }
  .therapist-grid { grid-template-columns: repeat(2, 1fr); }
  .patient-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 1.25rem; }
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; }

  body.nav-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(16px);
    padding: 1.5rem 2rem;
    gap: 1rem;
    box-shadow: var(--shadow-md);
  }
  body.nav-open .nav-actions {
    display: flex;
    position: absolute;
    top: calc(var(--nav-h) + 200px);
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(16px);
    padding: 0 2rem 1.5rem;
    gap: 0.75rem;
  }

  .section { padding: 4rem 0; }
  .hero { min-height: auto; padding-top: 6rem; padding-bottom: 3rem; }
  .hero-title { font-size: 2.5rem; }
  .hero-quote { display: none; }
  .method-copy .section-title { margin-bottom: 2rem; }
  .method-step { gap: 1rem; }
  .method-step h4 { font-size: 1.08rem; }
  .method-step p { font-size: 0.9rem; }
  .method-visual-shell {
    padding-top: 0.2rem;
  }
  .method-capture-frame {
    padding: 0.64rem;
    border-radius: 1.45rem;
  }
  .method-capture-viewport {
    border-radius: 0;
  }
  .method-capture-image {
    border-radius: 0;
  }
  .method-visual-caption {
    max-width: none;
  }
  .method-visual-caption-title {
    font-size: clamp(1.12rem, 7.2vw, 1.45rem);
    line-height: 1.02;
  }
  .method-visual-caption-copy {
    font-size: 0.86rem;
  }

  .fz-row,
  .fz-row--reverse { grid-template-columns: 1fr; }
  .fz-row--reverse { direction: ltr; }
  .fz-accent { min-height: 100px; }
  .fz-row--hierarchy-focus { gap: 1.5rem; }
  .fz-hierarchy-capture {
    padding: 0.8rem;
    border-radius: 22px;
  }
  .fz-hierarchy-badge {
    top: 0.85rem;
    left: 0.85rem;
    min-height: 26px;
    padding: 0 0.7rem;
    font-size: 0.56rem;
    letter-spacing: 0.12em;
  }
  .fz-hierarchy-viewport {
    min-height: 254px;
    aspect-ratio: 1.48 / 1;
  }
  .fz-hierarchy-img {
    transform: scale(1.16);
    object-position: 44% 20%;
  }
  .fz-hierarchy-focus-card {
    left: 0.85rem;
    right: 0.85rem;
    bottom: 0.85rem;
    width: auto;
    padding: 0.9rem 0.9rem 0.92rem;
  }
  .fz-hierarchy-focus-card strong {
    font-size: 0.96rem;
  }
  .fz-hierarchy-focus-card p {
    font-size: 0.72rem;
    max-width: none;
  }
  .fz-hierarchy-caption {
    gap: 0.4rem;
    margin-top: 0.75rem;
  }
  .fz-hierarchy-caption span {
    min-height: 24px;
    padding: 0 0.7rem;
    font-size: 0.52rem;
  }

  .therapist-grid,
  .patient-grid,
  .install-grid,
  .legal-duo { grid-template-columns: 1fr; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .dark-quote p { font-size: 1.15rem; }

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}

/* ================================================================
   REVEAL ANIMATION
   ================================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delay for sibling data-reveal elements */
[data-reveal]:nth-child(2) { transition-delay: 0.07s; }
[data-reveal]:nth-child(3) { transition-delay: 0.14s; }
[data-reveal]:nth-child(4) { transition-delay: 0.21s; }

/* ================================================================
   GAS / METAS — Goal Attainment Scaling
   ================================================================ */
.section-gas {
  background: var(--surface);
  padding: 6rem 0 5rem;
  position: relative;
}

.section-gas::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 10%, var(--outline-variant) 50%, transparent 90%);
}

.gas-header {
  max-width: 40rem;
  margin-bottom: 5rem;
}

.kicker-pill--dark {
  background: var(--primary);
  color: var(--on-primary);
}

.gas-title {
  text-align: left;
  margin-bottom: 1.25rem;
  text-wrap: balance;
}

.gas-lead {
  text-align: left;
  max-width: 38rem;
}

/* Editorial two-column */
.gas-editorial {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 5rem;
  align-items: start;
  margin-bottom: 5rem;
}

.gas-narrative {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.gas-subhead {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.gas-narrative p {
  font-size: 0.95rem;
  color: var(--on-surface-variant);
  line-height: 1.78;
  margin-bottom: 0.75rem;
  max-width: 56ch;
}

.gas-narrative em {
  color: var(--primary);
  font-style: italic;
}

/* GAS Scale Visual — sticky sidebar */
.gas-scale-visual {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}

.gas-scale {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0,0,0,0.05);
}

.gas-scale-item {
  display: flex;
  align-items: stretch;
}

.gas-scale-label {
  flex-shrink: 0;
  width: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-label);
  font-size: 0.85rem;
  font-weight: 700;
  background: rgba(255,255,255,0.6);
}

.gas-scale-bar {
  flex: 1;
  padding: 1.1rem 1.25rem;
  border-left: 3px solid transparent;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.2rem;
}

.gas-scale-desc {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--on-surface);
  font-weight: 600;
}

.gas-scale-tag {
  font-family: var(--font-label);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-top: 0.1rem;
}

.gas-scale-example {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-style: italic;
  color: var(--on-surface-variant);
  opacity: 0.7;
  margin-top: 0.15rem;
}

/* Scale level colors — warm amber (unmet) → indigo (met) → emerald (exceeded) */
.gas-scale--plus2 .gas-scale-bar {
  background: rgba(16, 185, 129, 0.07);
  border-left-color: #10b981;
}
.gas-scale--plus2 .gas-scale-label { color: #10b981; }

.gas-scale--plus1 .gas-scale-bar {
  background: rgba(16, 185, 129, 0.04);
  border-left-color: rgba(16, 185, 129, 0.5);
}
.gas-scale--plus1 .gas-scale-label { color: rgba(16, 185, 129, 0.7); }

.gas-scale--zero .gas-scale-bar {
  background: var(--lavender-50);
  border-left-color: var(--primary);
}
.gas-scale--zero .gas-scale-label { color: var(--primary); }

.gas-scale--minus1 .gas-scale-bar {
  background: rgba(245, 158, 11, 0.04);
  border-left-color: rgba(245, 158, 11, 0.5);
}
.gas-scale--minus1 .gas-scale-label { color: rgba(245, 158, 11, 0.7); }

.gas-scale--minus2 .gas-scale-bar {
  background: rgba(245, 158, 11, 0.07);
  border-left-color: #f59e0b;
}
.gas-scale--minus2 .gas-scale-label { color: #f59e0b; }

.gas-scale-caption {
  margin-top: 1.25rem;
  font-family: var(--font-label);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--on-surface-variant);
  opacity: 0.45;
  text-align: right;
}

/* Reasons Grid — dividers, not cards */
.gas-reasons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 4rem;
}

.gas-reason {
  padding: 2.5rem 2.25rem;
  border-top: 1px solid var(--outline-variant);
  transition: background 0.4s var(--ease);
}
.gas-reason:nth-child(odd) {
  border-right: 1px solid var(--outline-variant);
}
.gas-reason:hover {
  background: var(--lavender-50);
}

.gas-reason-number {
  display: block;
  font-family: var(--font-label);
  font-size: 2rem;
  font-weight: 900;
  color: var(--lavender-200);
  margin-bottom: 1rem;
  opacity: 0.5;
  transition: opacity 0.5s;
}
.gas-reason:hover .gas-reason-number { opacity: 1; }

.gas-reason h4 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.gas-reason p {
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  line-height: 1.68;
  max-width: 42ch;
}

/* Integration callout */
.gas-integration {
  margin-bottom: 4rem;
}

.gas-integration-inner {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  background: var(--lavender-50);
  border: 1px solid var(--lavender-100);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  transition: border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.gas-integration-inner:hover {
  border-color: var(--lavender-200);
  box-shadow: 0 12px 32px rgba(237,233,254,0.3);
}

.gas-integration-icon {
  font-size: 2rem;
  color: var(--primary);
  opacity: 0.6;
  flex-shrink: 0;
}

.gas-integration h4 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.gas-integration p {
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  line-height: 1.68;
  max-width: 60ch;
}

/* Quote */
.gas-quote {
  max-width: 44rem;
  margin: 0;
  padding: 3rem 0 0;
  border-top: 1px solid var(--outline-variant);
}

.gas-quote p {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.35rem;
  line-height: 1.55;
  color: var(--primary);
  margin-bottom: 1.25rem;
}

.gas-quote cite {
  display: block;
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.78rem;
  color: var(--on-surface-variant);
  line-height: 1.55;
  opacity: 0.55;
}

.gas-quote cite em {
  font-style: italic;
}

/* ================================================================
   GAS RESPONSIVE
   ================================================================ */
@media (max-width: 1024px) {
  .gas-editorial {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .gas-scale-visual {
    position: static;
    max-width: 420px;
  }
}

@media (max-width: 768px) {
  .section-gas {
    padding: 5rem 0 4rem;
  }
  .gas-header {
    margin-bottom: 3rem;
  }
  .gas-reasons {
    grid-template-columns: 1fr;
  }
  .gas-reason {
    border-right: none !important;
    padding: 2rem 1rem;
  }
  .gas-reason p { max-width: none; }
  .gas-quote p {
    font-size: 1.1rem;
  }
}

/* ================================================================
   NETWORKS + HIERARCHY
   ================================================================ */
.section-networks {
  background: var(--surface-container);
  padding: 6rem 0;
}

.net-block {
  margin-bottom: 6rem;
}
.net-block:last-child { margin-bottom: 0; }

.net-block-header {
  max-width: 40rem;
  margin-bottom: 3rem;
}

.net-title {
  text-align: left;
  text-wrap: balance;
}

/* ---- Network explainer ---- */
.net-explainer {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: start;
}

.net-lede {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--on-surface-variant);
  margin-bottom: 2rem;
  max-width: 52ch;
}

.net-qa {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  margin-bottom: 2rem;
}

.net-qa-item h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 0.4rem;
  line-height: 1.2;
}

.net-qa-item p {
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  line-height: 1.68;
  max-width: 50ch;
}

.net-caveat {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius);
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.15);
  margin-top: 2rem;
}

.net-caveat-icon {
  font-size: 1.25rem;
  color: #f59e0b;
  flex-shrink: 0;
  margin-top: 1px;
}

.net-caveat p {
  font-size: 0.82rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
}

/* ---- Network SVG diagram ---- */
.net-visual {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}

.net-diagram {
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
}

.net-diagram-caption {
  margin-top: 1rem;
  font-family: var(--font-label);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--on-surface-variant);
  opacity: 0.6;
  text-align: center;
}

/* ---- Hierarchy explainer ---- */
.net-block--hierarchy {
  padding-top: 4rem;
  border-top: 1px solid var(--outline-variant);
}

.hier-explain {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: start;
}

.hier-text p {
  font-size: 0.95rem;
  color: var(--on-surface-variant);
  line-height: 1.72;
  margin-bottom: 1rem;
  max-width: 52ch;
}

.hier-text em {
  color: var(--primary);
  font-style: italic;
}

.hier-metrics {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.hier-metric {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  background: var(--lavender-50);
  border: 1px solid var(--lavender-100);
  transition: all 0.4s var(--ease);
}
.hier-metric:hover {
  border-color: var(--lavender-200);
  box-shadow: 0 8px 24px rgba(237,233,254,0.25);
}

.hier-metric-icon {
  font-size: 1.5rem;
  color: var(--primary);
  opacity: 0.55;
  flex-shrink: 0;
}

.hier-metric h4 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 0.3rem;
  line-height: 1.2;
}

.hier-metric p {
  font-size: 0.82rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
  max-width: 42ch;
}

.hier-formula {
  font-size: 0.9rem;
  color: var(--on-surface);
  line-height: 1.7;
  padding: 1rem 0;
  border-top: 1px solid var(--outline-variant);
  border-bottom: 1px solid var(--outline-variant);
  margin: 1.5rem 0;
}
.hier-formula strong {
  color: var(--primary);
}

.hier-stability {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  background: rgba(16,185,129,0.04);
  border: 1px solid rgba(16,185,129,0.15);
}

.hier-stability-icon {
  font-size: 1.5rem;
  color: #10b981;
  opacity: 0.6;
  flex-shrink: 0;
}

.hier-stability h4 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 0.3rem;
}

.hier-stability p {
  font-size: 0.82rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
  max-width: 46ch;
}

/* ---- Hierarchy ranking visual ---- */
.hier-visual {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}

.hier-ranking {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: #fff;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: 0 12px 32px rgba(0,0,0,0.04);
}

.hier-rank {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hier-rank-pos {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 800;
}
.hier-rank--1 .hier-rank-pos { background: var(--primary); color: #fff; }
.hier-rank--2 .hier-rank-pos { background: var(--lavender-100); color: var(--primary); }
.hier-rank--3 .hier-rank-pos { background: var(--lavender-50); color: var(--primary); }
.hier-rank--4 .hier-rank-pos { background: var(--surface-container); color: var(--on-surface-variant); }

.hier-rank-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.hier-rank-name {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--on-surface);
}
.hier-rank-abbr {
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--primary);
  opacity: 0.55;
}

.hier-rank-bar {
  height: 6px;
  background: var(--surface-container);
  border-radius: 3px;
  overflow: hidden;
}
.hier-rank-bar span {
  display: block;
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--lavender-200));
  transition: width 0.8s var(--ease);
}

.hier-rank-detail {
  font-family: var(--font-label);
  font-size: 0.68rem;
  color: var(--on-surface-variant);
  opacity: 0.6;
  letter-spacing: 0.02em;
}

.hier-ranking-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--outline-variant);
}

.hier-stability-badge {
  font-family: var(--font-label);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}
.hier-stability-badge--alta {
  background: rgba(16,185,129,0.08);
  color: #10b981;
}

.hier-ranking-meta {
  font-family: var(--font-label);
  font-size: 0.62rem;
  color: var(--on-surface-variant);
  opacity: 0.45;
  letter-spacing: 0.02em;
}

/* ================================================================
   NETWORKS + HIERARCHY RESPONSIVE
   ================================================================ */
@media (max-width: 1024px) {
  .net-explainer,
  .hier-explain { grid-template-columns: 1fr; gap: 2.5rem; }
  .net-visual,
  .hier-visual { position: static; }
  .net-diagram { max-width: 280px; }
}

@media (max-width: 768px) {
  .section-networks { padding: 4rem 0; }
  .net-block { margin-bottom: 4rem; }
  .fz-row { padding: 1.5rem; }
}