/* === DESIGN TOKENS === */
:root {
  /* LIGHT THEME PALETTE */
  --bg-primary: #FFFFFF;
  --bg-soft: #F4F7FB;
  --bg-alt: #EDF1F7;
  --surface-card: #FFFFFF;
  --surface-glass: rgba(255, 255, 255, 0.85);

  --text-heading: #0F172A;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-white: #FFFFFF;

  --accent: #0D9488;
  --accent-hover: #0F766E;
  --accent-light: rgba(13, 148, 136, 0.1);
  --accent-glow: rgba(13, 148, 136, 0.2);

  --teal: #0D9488;
  --teal-light: rgba(13, 148, 136, 0.1);
  --purple: #7C3AED;
  --green: #10B981;
  --amber: #F59E0B;

  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.12);

  /* Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.78rem + 0.15vw, 0.875rem);
  --text-base: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.8vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
  --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
  --text-hero: clamp(2.5rem, 1.8rem + 3.5vw, 4.5rem);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Easing */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* Shadows — light theme appropriate */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 30px rgba(8, 145, 178, 0.12);
}

/* === LAYOUT === */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* === HEADER === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) 0;
  transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: clamp(1.4rem, 1.2rem + 1vw, 1.75rem);
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.02em;
}

.wordmark .v,
.wordmark .ai {
  color: var(--accent);
}

.wordmark .ai {
  font-weight: 600;
}

/* === NAV === */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s var(--ease-out);
  position: relative;
  padding: 4px 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s var(--ease-out);
}

.nav__link:hover,
.nav__link.active {
  color: var(--text-heading);
}

.nav__link.active::after,
.nav__link:hover::after {
  width: 100%;
}

#launch-btn::after { display: none !important; }
#launch-btn:hover { color: #fff; opacity: 0.9; }

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-heading);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* === HERO === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: url('./images/hero-bg.png') right center/cover no-repeat;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.92) 50%, rgba(255,255,255,0.5) 75%, rgba(255,255,255,0.15) 100%);
  z-index: 0;
}

/* Single-column hero layout (text on left, bg image shows through on right) */
.hero__inner-layout {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 600px;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
  margin-right: auto;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl) var(--space-2xl);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.hero__headline {
  font-size: var(--text-hero);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
  color: var(--text-heading);
}

.hero__sub {
  font-size: var(--text-lg);
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
  max-width: 560px;
}

/* === HERO CARDS (Static Data Source Grid) === */
.hero-tiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.hero-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s var(--ease-out);
}

.hero-card:hover {
  border-color: var(--accent-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.hero-card__icon {
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex-shrink: 0;
  color: var(--accent);
  color: var(--teal);
}

/* Google Health Connect badge */
.health-compat {
  text-align: center;
}

.health-compat__inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-full, 999px);
  backdrop-filter: blur(8px);
}

.health-compat__text {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-body);
}

.health-compat__glogo {
  flex-shrink: 0;
}

/* === SCROLLING LOGO BANNER === */
.logo-banner-wrap {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0%, black 15%, black 85%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 15%, black 85%, transparent 100%);
}

.logo-banner__track {
  display: flex;
  align-items: center;
  gap: 60px;
  width: max-content;
  animation: scrollLogos 20s linear infinite;
}

.logo-banner__label {
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.logo-banner__img {
  height: 28px;
  width: auto;
  opacity: 0.85;
  transition: opacity 0.3s ease;
}

.logo-banner__img:hover {
  opacity: 1;
}

@keyframes scrollLogos {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* How HealthV Works */
.section--how-it-works {
  padding: 0;
  max-width: 100%;
  background: var(--bg-primary);
}

.how-it-works-graphic {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

.how-it-works-img {
  width: 100%;
  height: auto;
  display: block;
  image-rendering: -webkit-optimize-contrast;
}

/* Optimization Section */
.optimization-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
}

.optimization-card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl, 16px);
  padding: var(--space-xl);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s;
}

.optimization-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.optimization-card__icon {
  width: 56px;
  height: 56px;
  background: var(--teal-light);
  color: var(--teal);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

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

.optimization-card__desc {
  font-size: var(--text-sm);
  color: var(--text-body);
  line-height: 1.7;
}

.hero-card__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-heading);
}

/* === BUTTONS & FORMS === */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  background: var(--accent);
  color: var(--text-white);
  font-weight: 600;
  font-size: var(--text-base);
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), background 0.2s var(--ease-out);
  white-space: nowrap;
}

.btn-primary:hover {
  transform: scale(1.03);
  background: var(--accent-hover);
  box-shadow: var(--shadow-glow);
}

.btn-primary:active {
  transform: scale(0.98);
}

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

.waitlist-form {
  display: flex;
  gap: var(--space-sm);
  max-width: 480px;
  flex-wrap: wrap;
}

.waitlist-form__input {
  flex: 1;
  min-width: 200px;
  padding: 14px 20px;
  background: var(--surface-glass);
  border: 1px solid var(--border-strong);
  border-radius: 50px;
  color: var(--text-heading);
  font-size: var(--text-base);
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
  backdrop-filter: blur(8px);
}

.waitlist-form__input::placeholder {
  color: var(--text-muted);
}

.waitlist-form__input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-success {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 20px;
  background: var(--teal-light);
  border: 1px solid rgba(13, 148, 136, 0.2);
  border-radius: var(--radius-md);
  color: var(--teal);
  font-size: var(--text-base);
  font-weight: 500;
  max-width: 480px;
  animation: fadeInUp 0.4s var(--ease-out);
}

.form-success.show {
  display: flex;
}

.form-success svg circle {
  stroke: var(--teal);
}

.form-success svg path {
  stroke: var(--teal);
}

/* === SECTIONS === */
.section {
  position: relative;
  padding: var(--space-5xl) 0;
  overflow: hidden;
}

.section--what {
  background: url('./images/what-bg.png') right center/cover no-repeat;
  position: relative;
}

.section--what::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(255,255,255,0.92) 55%, rgba(255,255,255,0.18) 100%);
  z-index: 0;
}

.section--patients {
  background: url('./images/patients-bg.png') center/cover no-repeat;
  position: relative;
}

.section--patients::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(255,255,255,0.95) 60%, rgba(255,255,255,0.3) 100%);
  z-index: 0;
}

.section--patients > .container {
  position: relative;
  z-index: 1;
}

.section--providers {
  background: url('./images/providers-bg.png') center/cover no-repeat;
  position: relative;
}

.section--providers::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to left, rgba(255,255,255,0.95) 60%, rgba(255,255,255,0.3) 100%);
  z-index: 0;
}

.section--providers > .container {
  position: relative;
  z-index: 1;
}

.section--security {
  background: url('./images/security-bg.png') center/cover no-repeat;
  position: relative;
}

.section--security::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  z-index: 0;
}

.section--security > .container {
  position: relative;
  z-index: 1;
}

.section--security .section__title {
  color: var(--text-white);
}

.section--security .section__subtitle {
  color: rgba(255, 255, 255, 0.8);
}


.section--contact {
  background: var(--bg-primary);
}

.section__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  color: var(--text-heading);
}

.section--optimization .section__title {
  color: var(--text-white);
}

.section--optimization .section__subtitle {
  color: rgba(255, 255, 255, 0.85);
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--text-body);
  max-width: 640px;
  line-height: 1.6;
  margin-bottom: var(--space-3xl);
}

/* === WHAT IT IS — Body Text === */
.what-it-is__body {
  max-width: 800px;
  margin-bottom: var(--space-3xl);
}

.what-it-is__text {
  font-size: var(--text-lg);
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

/* === PILLARS === */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-4xl);
}

.pillar {
  padding: var(--space-xl);
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s var(--ease-out);
}

.pillar:hover {
  border-color: var(--accent-glow);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.pillar__title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-heading);
}

.pillar__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.6;
}

/* === FLOW DIAGRAM V2 — LARGE & DYNAMIC === */
.flow-v2 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: var(--space-4xl) 0;
  position: relative;
}

.flow-v2__sources {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  flex-shrink: 0;
  width: 340px;
}

.flow-v2__source {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-body);
  transition: border-color 0.3s, box-shadow 0.3s, opacity 0.6s, transform 0.6s;
  opacity: 0;
  transform: translateX(-20px);
  box-shadow: var(--shadow-sm);
}

.flow-v2.animated .flow-v2__source {
  opacity: 1;
  transform: translateX(0);
}

.flow-v2__icon {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
}

.flow-v2__source img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.flow-v2__source:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
  transform: translateX(4px);
}

/* Connector lines (animated) */
.flow-v2__connector {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100px;
  flex-shrink: 0;
  position: relative;
}

.flow-v2__line-bundle {
  display: flex;
  flex-direction: column;
  gap: 7px;
  width: 100%;
  padding: 0 8px;
}

.flow-v2__anim-line {
  height: 2px;
  border-radius: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 30%, var(--accent) 70%, transparent 100%);
  opacity: 0;
  animation: flowLineIn 2s var(--ease-out) forwards;
  position: relative;
  overflow: hidden;
}

.flow-v2.animated .flow-v2__anim-line {
  opacity: 1;
}

.flow-v2__anim-line:nth-child(1) { animation-delay: 0.4s; }
.flow-v2__anim-line:nth-child(2) { animation-delay: 0.6s; }
.flow-v2__anim-line:nth-child(3) { animation-delay: 0.8s; }
.flow-v2__anim-line:nth-child(4) { animation-delay: 1.0s; }
.flow-v2__anim-line:nth-child(5) { animation-delay: 1.2s; }

@keyframes flowLineIn {
  0% { opacity: 0; transform: scaleX(0); }
  50% { opacity: 0.6; transform: scaleX(0.6); }
  100% { opacity: 0.4; transform: scaleX(1); }
}

/* Animated pulse dots traveling along lines */
.flow-v2.animated .flow-v2__anim-line::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -24px;
  width: 24px;
  height: 6px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  border-radius: 3px;
  box-shadow: 0 0 12px var(--accent), 0 0 4px var(--accent);
  animation: flowDot 2s linear infinite;
}

.flow-v2.animated .flow-v2__anim-line:nth-child(2)::after { animation-delay: 0.4s; animation-duration: 2.2s; }
.flow-v2.animated .flow-v2__anim-line:nth-child(3)::after { animation-delay: 0.8s; animation-duration: 1.8s; }
.flow-v2.animated .flow-v2__anim-line:nth-child(4)::after { animation-delay: 1.2s; animation-duration: 2.4s; }
.flow-v2.animated .flow-v2__anim-line:nth-child(5)::after { animation-delay: 1.6s; animation-duration: 2.0s; }

@keyframes flowDot {
  0% { left: -24px; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: calc(100% + 24px); opacity: 0; }
}

/* Center HealthV AI node — LARGE */
.flow-v2__center {
  flex-shrink: 0;
  position: relative;
}

.flow-v2__node {
  position: relative;
  width: 180px;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flow-v2__node-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  animation: nodePulse 3s ease-in-out infinite;
}

.flow-v2__node-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1.5px dashed rgba(8, 145, 178, 0.25);
  animation: nodeRingSpin 20s linear infinite;
}

@keyframes nodeRingSpin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.flow-v2__node-inner {
  position: relative;
  z-index: 1;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--teal) 100%);
  border: 2px solid rgba(255,255,255,0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 40px rgba(8, 145, 178, 0.3), 0 0 80px rgba(8, 145, 178, 0.1), var(--shadow-lg);
}

.flow-v2__node-logo {
  width: 36px;
  height: 36px;
  margin-bottom: 4px;
}

.flow-v2__node-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: #fff;
  display: block;
  letter-spacing: -0.01em;
}

.flow-v2__node-sub {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.7);
  font-weight: 500;
  animation: processingBlink 2s ease-in-out infinite;
}

@keyframes processingBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Floating particles around center node */
.flow-v2__node-particles {
  position: absolute;
  inset: -20px;
  pointer-events: none;
}

.flow-v2__node-particles span {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
}

.flow-v2.animated .flow-v2__node-particles span {
  animation: particleFloat 4s ease-in-out infinite;
}

.flow-v2__node-particles span:nth-child(1) { top: 10%; left: 15%; animation-delay: 0s; }
.flow-v2__node-particles span:nth-child(2) { top: 5%; right: 20%; animation-delay: 0.7s; }
.flow-v2__node-particles span:nth-child(3) { bottom: 15%; left: 10%; animation-delay: 1.4s; }
.flow-v2__node-particles span:nth-child(4) { bottom: 10%; right: 15%; animation-delay: 2.1s; }
.flow-v2__node-particles span:nth-child(5) { top: 50%; left: 0%; animation-delay: 2.8s; }
.flow-v2__node-particles span:nth-child(6) { top: 50%; right: 0%; animation-delay: 3.5s; }

@keyframes particleFloat {
  0%, 100% { opacity: 0; transform: scale(0) translateY(0); }
  30% { opacity: 0.6; transform: scale(1) translateY(-8px); }
  70% { opacity: 0.4; transform: scale(0.8) translateY(8px); }
}

@keyframes nodePulse {
  0%, 100% { opacity: 0; transform: scale(0.85); }
  50% { opacity: 0.15; transform: scale(1.05); }
}

/* === DIGITAL TWIN OUTPUT — LARGER === */
.flow-v2__output {
  flex-shrink: 0;
  width: 280px;
}

.flow-v2__twin {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.twin-dashboard {
  width: 260px;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
}

.twin-dashboard::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--teal), var(--purple));
}

.twin-dashboard__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border);
}

.twin-dashboard__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.twin-dashboard__avatar svg {
  width: 20px;
  height: 20px;
}

.twin-dashboard__title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.2;
}

.twin-dashboard__sub {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* Metric bars — larger */
.twin-metrics {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.twin-metric {
  display: flex;
  align-items: center;
  gap: 8px;
}

.twin-metric__label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  width: 56px;
  flex-shrink: 0;
  text-align: right;
  font-weight: 500;
}

.twin-metric__bar {
  flex: 1;
  height: 8px;
  background: var(--bg-alt);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.twin-metric__fill {
  height: 100%;
  border-radius: 4px;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1.2s var(--ease-out);
}

.flow-v2.animated .twin-metric__fill {
  transform: scaleX(1);
}

.twin-metric__fill--hrv { background: var(--accent); width: 72%; }
.twin-metric__fill--sleep { background: var(--teal); width: 85%; }
.twin-metric__fill--labs { background: var(--green); width: 64%; }
.twin-metric__fill--stress { background: var(--amber); width: 42%; }
.twin-metric__fill--recovery { background: var(--purple); width: 82%; }

.twin-metric__value {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-heading);
  width: 44px;
  flex-shrink: 0;
  text-align: left;
}

/* Heartbeat line — larger */
.twin-heartbeat {
  height: 36px;
  position: relative;
  overflow: hidden;
}

.twin-heartbeat svg {
  width: 100%;
  height: 100%;
}

.twin-heartbeat__line {
  stroke: var(--accent);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  transition: stroke-dashoffset 2s ease-in-out;
}

.flow-v2.animated .twin-heartbeat__line {
  stroke-dashoffset: 0;
}

.twin-dashboard__footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border);
}

.twin-dashboard__status {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.twin-dashboard__status-text {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.flow-v2__twin-label {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--accent);
  line-height: 1.4;
}

.flow-tagline {
  text-align: center;
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-muted);
  margin-top: var(--space-xl);
  font-style: italic;
}

/* === TWO-COLUMN LAYOUT === */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

/* === PHONE MOCKUP === */
.phone-mockup {
  position: sticky;
  top: 120px;
}

.phone-frame {
  max-width: 340px;
  margin: 0 auto;
  background: #1A1A2E;
  border-radius: 36px;
  border: 3px solid #2A2A3E;
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 60px rgba(8, 145, 178, 0.08);
}

.phone-notch {
  width: 120px;
  height: 24px;
  background: #1A1A2E;
  border-radius: 0 0 16px 16px;
  margin: 0 auto;
}

.phone-screen {
  background: #0F172A;
  min-height: 480px;
  display: flex;
  flex-direction: column;
}

.phone-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 12px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.phone-header__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

.phone-header__label {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--text-white);
}

.phone-chat {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.phone-msg {
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.8rem;
  line-height: 1.5;
  max-width: 90%;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}

.phone-msg.visible {
  opacity: 1;
  transform: translateY(0);
}

.phone-msg--user {
  align-self: flex-end;
  background: var(--accent);
  color: var(--text-white);
  font-weight: 500;
  border-bottom-right-radius: 4px;
}

.phone-msg--ai {
  align-self: flex-start;
  background: #1E293B;
  border: 1px solid rgba(255,255,255,0.08);
  color: #CBD5E1;
  border-bottom-left-radius: 4px;
}

/* === INFO BLOCK (right side content) === */
.info-block {
  padding-top: var(--space-lg);
}

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

.info-block__subtitle {
  font-size: var(--text-base);
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
}

/* === FEATURE LIST === */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  flex-shrink: 0;
  object-fit: cover;
}

.feature-item__title {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-heading);
}

.feature-item__desc {
  font-size: var(--text-sm);
  color: var(--text-body);
  line-height: 1.6;
}

/* === DESKTOP MOCKUP === */
.desktop-mockup {
  position: sticky;
  top: 100px;
}

.desktop-frame {
  background: #0D1117;
  border-radius: var(--radius-lg);
  border: 1px solid #30363D;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.desktop-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 10px 16px;
  background: #161B22;
  border-bottom: 1px solid #30363D;
}

.desktop-bar__dots {
  display: flex;
  gap: 6px;
}

.desktop-bar__dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.desktop-bar__dots span:nth-child(1) { background: #FF5F57; }
.desktop-bar__dots span:nth-child(2) { background: #FEBC2E; }
.desktop-bar__dots span:nth-child(3) { background: #28C840; }

.desktop-bar__url {
  font-size: 0.7rem;
  color: #7B8BA3;
  background: #0D1117;
  padding: 4px 12px;
  border-radius: 6px;
  flex: 1;
}

.desktop-screen {
  padding: 16px;
}

/* Dashboard cards */
.dash-row {
  display: grid;
  gap: 10px;
  margin-bottom: 10px;
}

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

.dash-row--mid {
  grid-template-columns: 2fr 1fr;
}

.dash-row--bottom {
  grid-template-columns: 2fr 1fr;
}

.dash-card {
  background: #161B22;
  border: 1px solid #30363D;
  border-radius: 8px;
  padding: 10px 12px;
}

.dash-card--patient {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dash-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--purple));
}

.dash-label {
  font-size: 0.6rem;
  color: #7B8BA3;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dash-value {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-white);
  margin-top: 2px;
}

.dash-value--risk {
  display: flex;
  align-items: center;
  gap: 6px;
}

.dash-risk {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dash-risk--medium { background: #F59E0B; }

.dash-panel {
  background: #161B22;
  border: 1px solid #30363D;
  border-radius: 8px;
  padding: 12px;
}

.dash-panel__title {
  font-size: 0.65rem;
  color: #7B8BA3;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  font-weight: 600;
}

.dash-chart svg {
  width: 100%;
  height: 60px;
}

.dash-chart__legend {
  display: flex;
  gap: 12px;
  margin-top: 6px;
  font-size: 0.6rem;
  color: #7B8BA3;
}

.dash-chart__legend i {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
}

.dash-mini-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.dash-mini {
  display: flex;
  flex-direction: column;
}

.dash-mini__label {
  font-size: 0.6rem;
  color: #7B8BA3;
}

.dash-mini__value {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-white);
  font-variant-numeric: tabular-nums;
}

.dash-mini__value--up {
  color: var(--green);
}

.dash-digest__stat {
  font-size: 0.75rem;
  color: #CBD5E1;
  margin-bottom: 8px;
}

.dash-digest__stat strong {
  color: var(--green);
}

.dash-digest__item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  color: #7B8BA3;
  padding: 3px 0;
}

.dash-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dash-dot--green { background: var(--green); }

.dash-action {
  display: block;
  width: 100%;
  padding: 6px 10px;
  margin-bottom: 6px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent);
  background: rgba(8, 145, 178, 0.08);
  border: 1px solid rgba(8, 145, 178, 0.15);
  border-radius: 6px;
  text-align: center;
  cursor: pointer;
  transition: background 0.2s;
}

.dash-action:hover {
  background: rgba(8, 145, 178, 0.15);
}

.mockup-caption {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--space-lg);
  font-style: italic;
}

/* === DASHBOARD ALERTS ROW === */
.dash-row--alerts,
.dash-row--queue {
  margin-top: 8px;
}

.dash-panel--alerts-panel,
.dash-panel--queue-panel {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 12px;
  width: 100%;
}

.dash-alert-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dash-alert-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.dash-alert-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dash-alert-dot--yellow { background: #F59E0B; }
.dash-alert-dot--green { background: #10B981; }
.dash-alert-dot--blue { background: #3B82F6; }

.dash-alert-name {
  font-size: 0.7rem;
  font-weight: 600;
  color: #E2E8F0;
}

.dash-alert-detail {
  font-size: 0.6rem;
  color: #94A3B8;
  margin-top: 1px;
}

.dash-alert-time {
  font-size: 0.6rem;
  color: #64748B;
  margin-left: auto;
  flex-shrink: 0;
}

/* === DASHBOARD QUEUE ROW === */
.dash-queue {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.dash-queue-header {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.8fr 0.7fr;
  padding: 6px 10px;
  font-size: 0.6rem;
  font-weight: 600;
  color: #64748B;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.dash-queue-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.8fr 0.7fr;
  padding: 8px 10px;
  font-size: 0.65rem;
  color: #CBD5E1;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  align-items: center;
}

.dash-queue-row:last-child {
  border-bottom: none;
}

.dash-status {
  font-size: 0.6rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 10px;
  display: inline-block;
  width: fit-content;
}

.dash-status--active {
  background: rgba(8, 145, 178, 0.15);
  color: #22D3EE;
}

.dash-status--pending {
  background: rgba(245, 158, 11, 0.15);
  color: #FBBF24;
}

.dash-status--done {
  background: rgba(16, 185, 129, 0.15);
  color: #34D399;
}

.dash-priority {
  font-size: 0.6rem;
  font-weight: 500;
}

.dash-priority--high { color: #F87171; }
.dash-priority--medium { color: #FBBF24; }
.dash-priority--low { color: #34D399; }

/* === SECURITY SECTION === */
.two-col--security {
  align-items: start;
}

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

.security-card {
  padding: var(--space-xl);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s var(--ease-out);
}

.security-card:hover {
  border-color: rgba(8, 145, 178, 0.4);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.12);
}

.security-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: cover;
  margin-bottom: 12px;
}

.security-card__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: var(--space-xs);
}

.security-card__desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.trust-badges {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.trust-badge {
  font-size: var(--text-xs);
  color: #67E8F9;
  background: rgba(8, 145, 178, 0.2);
  border: 1px solid rgba(8, 145, 178, 0.3);
  padding: 6px 14px;
  border-radius: 50px;
  font-weight: 500;
}

/* === SECURITY DIAGRAM === */
.security-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}

.sec-diagram-wrapper {
  position: relative;
  border: 2px dashed rgba(8, 145, 178, 0.3);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-xl);
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.sec-shield {
  position: absolute;
  opacity: 0.35;
}

.sec-shield__img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.sec-shield--tl { top: -14px; left: -14px; }
.sec-shield--tr { top: -14px; right: -14px; }
.sec-shield--bl { bottom: -14px; left: -14px; }
.sec-shield--br { bottom: -14px; right: -14px; }

.sec-layer {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
}

.sec-layer--cloud {
  border-color: rgba(8, 145, 178, 0.3);
  background: rgba(8, 145, 178, 0.1);
}

.sec-layer--vault {
  border-color: rgba(16, 185, 129, 0.3);
  background: rgba(16, 185, 129, 0.1);
}

.sec-layer__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.sec-layer__icon svg {
  width: 100%;
  height: 100%;
  stroke: #67E8F9;
}

.sec-layer__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sec-layer__text strong {
  font-size: var(--text-base);
  color: #FFFFFF;
}

.sec-layer__text span {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.7);
}

.sec-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 4px 0;
}

.sec-arrow svg {
  width: 24px;
  height: 36px;
}

.sec-arrow svg path {
  stroke: #67E8F9;
}

.sec-arrow__lock {
  font-size: 0.9rem;
  margin-top: -8px;
  color: #67E8F9;
}

.security-diagram__tagline {
  text-align: center;
  font-size: var(--text-base);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  margin-top: var(--space-xl);
  line-height: 1.8;
}

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

.contact-box {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
}

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

.contact-box__desc {
  font-size: var(--text-sm);
  color: var(--text-body);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

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

.contact-form__input {
  padding: 14px 18px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-heading);
  font-size: var(--text-base);
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
  width: 100%;
}

.contact-form__input::placeholder {
  color: #9CA3AF;
}

.contact-form__input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.contact-form__textarea {
  resize: vertical;
  min-height: 80px;
}

.contact-box .form-success {
  margin-top: var(--space-md);
}

/* === FOOTER === */
.footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

.footer__copy {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.footer__email {
  font-size: var(--text-xs);
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer__email:hover {
  color: var(--accent);
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === RESPONSIVE === */
@media (max-width: 1023px) {
  .hero__inner-layout {
    grid-template-columns: 1fr;
    max-width: 100%;
    gap: var(--space-2xl);
  }

  .two-col {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .phone-mockup,
  .desktop-mockup {
    position: static;
  }

  .phone-frame {
    max-width: 320px;
  }

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

  /* Flow v2 stacks vertically */
  .flow-v2 {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .flow-v2__sources {
    width: 100%;
    max-width: 360px;
    grid-template-columns: 1fr 1fr;
  }

  .flow-v2__output {
    width: 100%;
    max-width: 300px;
  }

  .flow-v2__connector {
    width: auto;
    height: 60px;
    flex-direction: column;
  }

  .flow-v2__line-bundle {
    flex-direction: row;
    height: 100%;
    width: auto;
    padding: 8px 0;
    align-items: center;
  }

  .flow-v2__anim-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(180deg, transparent 0%, var(--accent) 40%, var(--accent) 60%, transparent 100%);
  }

  .flow-v2.animated .flow-v2__anim-line::after {
    width: 4px;
    height: 20px;
    top: -20px;
    left: -1px;
    animation: flowDotVertical 2.5s linear infinite;
  }

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

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

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

  .section--patients::before {
    background: linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.85) 70%, rgba(255,255,255,0.5) 100%);
  }

  .section--providers::before {
    background: linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.85) 70%, rgba(255,255,255,0.5) 100%);
  }
}

@keyframes flowDotVertical {
  0% { top: -20px; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { top: calc(100% + 20px); opacity: 0; }
}

@media (max-width: 767px) {
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-lg);
    gap: var(--space-md);
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }

  .nav.open {
    display: flex;
  }

  .nav__link {
    font-size: var(--text-base);
    padding: var(--space-sm) 0;
    color: var(--text-body);
  }

  .nav-toggle {
    display: flex;
  }

  .section {
    padding: var(--space-4xl) 0;
  }

  .hero {
    min-height: auto;
    padding: var(--space-5xl) 0 var(--space-4xl);
  }

  .hero::before {
    background: linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.85) 70%, rgba(255,255,255,0.5) 100%);
  }

  .waitlist-form {
    flex-direction: column;
    max-width: 100%;
  }

  .waitlist-form__input {
    min-width: 100%;
  }

  .flow-v2__sources {
    grid-template-columns: 1fr;
    width: 100%;
  }

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

  .dash-row--mid,
  .dash-row--bottom {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .pillars {
    gap: var(--space-md);
  }

  .security-card {
    padding: var(--space-lg);
  }

  .contact-box {
    padding: var(--space-lg);
  }

  .section--patients::before {
    background: rgba(255,255,255,0.9);
  }

  .section--providers::before {
    background: rgba(255,255,255,0.9);
  }

  .section--what::before {
    background: rgba(255,255,255,0.9);
  }
}

/* === VITALITY SECTION === */
.section--vitality {
  background: url('./images/vitality-bg.png') center/cover no-repeat;
  padding: var(--space-5xl) 0;
  position: relative;
  overflow: hidden;
}

.section--vitality::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  z-index: 0;
}

.section--vitality > .container {
  position: relative;
  z-index: 1;
}

.vitality-intro {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-3xl);
}

.vitality-v-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  margin-bottom: var(--space-lg);
  box-shadow: 0 8px 32px rgba(8, 145, 178, 0.25);
}

.vitality-v-badge__letter {
  font-size: 2.25rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.02em;
}

.section--vitality .section__title {
  margin-bottom: var(--space-md);
  color: var(--text-white);
}

.section--vitality .section__subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.vitality-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.vitality-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), background 0.3s;
}

.vitality-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
  background: rgba(255, 255, 255, 0.15);
}

.vitality-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: cover;
  margin-bottom: 12px;
}

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

.vitality-card__desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
}

.vitality-statement {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.vitality-statement__text {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.8;
}

.vitality-statement__text strong {
  color: #67E8F9;
  font-weight: 700;
}

@media (max-width: 900px) {
  .vitality-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
}

@media (max-width: 600px) {
  .section--vitality {
    padding: var(--space-3xl) 0;
  }

  .vitality-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .vitality-v-badge {
    width: 56px;
    height: 56px;
  }

  .vitality-v-badge__letter {
    font-size: 1.75rem;
  }

  .vitality-card {
    padding: var(--space-xl) var(--space-lg);
  }
}


/* iOS parallax fix */
@supports (-webkit-touch-callout: none) {
  .hero,
  .section--vitality,
  .section--patients,
  .section--providers,
  .section--security {
    background-attachment: scroll;
  }
}

/* === SCROLL TO TOP BUTTON === */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(8, 145, 178, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.2s;
  z-index: 1000;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--accent-hover);
  box-shadow: 0 6px 16px rgba(8, 145, 178, 0.4);
}

/* Login Button */
.btn-login {
  padding: 8px 20px !important;
  font-size: var(--text-sm) !important;
  white-space: nowrap;
  margin-left: var(--space-md);
}

@media (max-width: 768px) {
  .btn-login {
    margin-left: 0;
    margin-top: var(--space-md);
    width: 100%;
    text-align: center;
  }
}


/* Continuous heartbeat animation */
@keyframes heartbeatDraw {
  0% { stroke-dashoffset: 300; }
  50% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -300; }
}

.flow-v2.animated .twin-heartbeat__line {
  stroke-dashoffset: 300;
  animation: heartbeatDraw 3s ease-in-out infinite;
}

/* Mobile: hide header login button, show inside nav dropdown */
@media (max-width: 767px) {
  .header__inner > .btn-login {
    display: none;
  }
}

/* In-nav login link: hidden on desktop, visible on mobile */
a.nav__link.nav__link--login {
  display: none !important;
}

@media (max-width: 767px) {
  a.nav__link.nav__link--login {
    display: block;
    color: var(--accent) !important;
    font-weight: 600;
    border-top: 1px solid var(--border);
    padding-top: var(--space-md);
    margin-top: var(--space-sm);
  }
}

/* Fix hero readability */
.hero__headline {
  color: #0F172A !important;
}
.hero__content {
  background: rgba(255, 255, 255, 0.88);
}

/* === HERO OVERRIDES: restore two-column layout with subtle bg === */
.hero {
  background: #fff url("./images/bg-network-light.jpg") center bottom/cover no-repeat !important;
}

.hero::before {
  background: linear-gradient(180deg, rgba(255,255,255,0.97) 0%, rgba(255,255,255,0.85) 40%, rgba(255,255,255,0.7) 100%) !important;
}

.hero__inner-layout {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  max-width: 1200px !important;
  margin: 0 auto !important;
  gap: var(--space-3xl) !important;
  align-items: center !important;
}

.hero__content {
  background: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border: none !important;
  padding: 0 !important;
  border-radius: 0 !important;
}

.hero__headline {
  color: var(--text-heading) !important;
}

@media (max-width: 767px) {
  .hero__inner-layout {
    grid-template-columns: 1fr !important;
    margin: 0 auto !important;
    padding: 0 var(--space-md) !important;
  }

  .hero__content {
    text-align: center;
  }

  .hero__sub {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-tiles {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs);
    overflow: hidden;
  }

  .hero-card {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.8rem;
  }

  .hero-card__icon {
    width: 32px;
    height: 32px;
  }

  .hero-card__label {
    font-size: 0.75rem;
  }

  .logo-banner-wrap {
    text-align: center;
  }

  .logo-banner__label {
    text-align: center;
  }

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

  .footer__email {
    margin-left: 0 !important;
  }
}