/* ── Baseline Genomics — Web Animation Design & Stylesheet ── */

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

:root {
  /* Brand Palette */
  --bg-page: #faf9f5;
  --bg-card: #ffffff;
  --bg-tint: #f3efe6;
  --text-main: #141413;
  --text-muted: #575550;
  --text-light: #7c7971;
  --border-subtle: #e8e4db;
  --border-strong: #d4cfc3;

  /* Accent Colors */
  --purple-brand: #5e2292;
  --purple-hover: #4b1777;
  --purple-soft: #f4ecfc;
  --purple-light: #ece0f8;
  --wa-green: #25D366;
  --wa-green-hover: #1eb956;
  --coral-accent: #d97757;

  /* Typography */
  --font-display: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-serif: 'Source Serif 4', Georgia, serif;

  /* Easing Blueprint (Emil Kowalski's Animations on the Web) */
  --ease-out-quad: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out-cubic: cubic-bezier(0.215, 0.61, 0.355, 1);
  --ease-out-quart: cubic-bezier(0.165, 0.84, 0.44, 1);
  --ease-in-out-cubic: cubic-bezier(0.645, 0.045, 0.355, 1);
  --ease-standard: ease;

  --max-w: 1140px;
  --gutter: clamp(16px, 4vw, 24px);
  --space-section: clamp(54px, 7vw, 88px);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-serif);
  font-size: 17.5px;
  line-height: 1.65;
  color: var(--text-muted);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-main);
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  color: var(--purple-brand);
  text-decoration: none;
  transition: color 150ms var(--ease-standard);
}

a:hover {
  color: var(--purple-hover);
}

ul {
  list-style: none;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ── Top Reassuring Banner ── */
.top-banner {
  background: var(--text-main);
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 0;
}

.top-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.banner-link {
  color: #d8b4f8;
  font-weight: 600;
  transition: color 150ms var(--ease-standard);
}

.banner-link:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* ── Header & Navigation ── */
.header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 249, 245, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: box-shadow 200ms var(--ease-standard), background 200ms var(--ease-standard);
}

.header.scrolled {
  box-shadow: 0 4px 20px rgba(20, 20, 19, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand-logo {
  height: 48px;
  width: auto;
  transition: transform 150ms var(--ease-out-cubic);
}

@media (hover: hover) and (pointer: fine) {
  .brand-logo:hover {
    transform: scale(1.02);
  }
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-menu a {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  transition: color 150ms var(--ease-standard);
}

.nav-menu a:hover {
  color: var(--text-main);
}

.btn-nav {
  background: var(--purple-brand);
  color: #ffffff !important;
  font-weight: 600 !important;
  font-size: 14px !important;
  padding: 10px 18px;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(94, 34, 146, 0.2);
  transition: background 150ms var(--ease-standard), transform 120ms var(--ease-out-cubic), box-shadow 150ms var(--ease-standard);
  will-change: transform;
}

.btn-nav:hover {
  background: var(--purple-hover) !important;
  box-shadow: 0 4px 12px rgba(94, 34, 146, 0.3);
}

.btn-nav:active {
  transform: scale(0.97);
}

.arrow {
  display: inline-block;
  transition: transform 160ms var(--ease-out-cubic);
}

@media (hover: hover) and (pointer: fine) {
  a:hover .arrow {
    transform: translateX(4px);
  }
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
  width: 44px;
  height: 44px;
  border-radius: 6px;
  transition: background 150ms var(--ease-standard);
  -webkit-tap-highlight-color: transparent;
}

.menu-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transform-origin: center;
  transition: transform 220ms var(--ease-out-cubic), opacity 150ms var(--ease-standard);
  will-change: transform;
}

.menu-toggle.active .menu-line:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-toggle.active .menu-line:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* ── Hero: Warm & Reassuring with Animated Ambient DNA ── */
.hero {
  position: relative;
  padding: clamp(52px, 8vw, 88px) 0 clamp(44px, 6vw, 68px);
  text-align: center;
  overflow: hidden;
}

/* Ambient DNA Canvas (skips layout/paint, GPU transform only) */
.hero-ambient-dna {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  max-width: 1440px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

.dna-wave-svg {
  width: 100%;
  height: auto;
}

/* Natural Harmonic Motion for DNA strands */
@keyframes waveFloatA {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-8px) rotate(0.4deg);
  }
}

@keyframes waveFloatB {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(8px) rotate(-0.4deg);
  }
}

@keyframes nodeGlow {
  0%, 100% {
    transform: scale(1);
    opacity: 0.4;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.7;
  }
}

.strand-a {
  animation: waveFloatA 7s var(--ease-in-out-cubic) infinite;
  transform-origin: center;
  will-change: transform;
}

.strand-b {
  animation: waveFloatB 7s var(--ease-in-out-cubic) infinite;
  transform-origin: center;
  will-change: transform;
}

.dna-node {
  animation: nodeGlow 4s var(--ease-in-out-cubic) infinite;
  transform-box: fill-box;
  transform-origin: center;
  will-change: transform, opacity;
}

.node-2 {
  animation-delay: 1.2s;
}
.node-3 {
  animation-delay: 2.4s;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 860px;
}

.hero-title {
  font-size: clamp(1.85rem, 5vw, 3.6rem);
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-bottom: 20px;
  word-break: break-word;
  overflow-wrap: break-word;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.18rem);
  line-height: 1.68;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

/* ── Interactive Buttons with Emil Kowalski Micro-Interactions ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  min-height: 46px;
  padding: 12px 24px;
  border-radius: 6px;
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  /* GPU-accelerated responsive transitions */
  transition: transform 120ms var(--ease-out-cubic), background 150ms var(--ease-standard), border-color 150ms var(--ease-standard), box-shadow 180ms var(--ease-out-cubic);
  will-change: transform;
}

/* Button active feel: scale(0.97) */
.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--purple-brand);
  color: #ffffff;
  border-color: var(--purple-brand);
  box-shadow: 0 4px 12px rgba(94, 34, 146, 0.2);
}

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    background: var(--purple-hover);
    border-color: var(--purple-hover);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(94, 34, 146, 0.28);
  }
}

.btn-outline {
  background: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border-strong);
}

@media (hover: hover) and (pointer: fine) {
  .btn-outline:hover {
    border-color: var(--purple-brand);
    color: var(--purple-brand);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(20, 20, 19, 0.05);
  }
}

.btn-whatsapp-inline {
  background: #ffffff;
  color: #075e54;
  border-color: #25d366;
}

@media (hover: hover) and (pointer: fine) {
  .btn-whatsapp-inline:hover {
    background: #f0faf4;
    color: #075e54;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.15);
  }
}

.btn-wa-icon {
  display: inline-block;
  vertical-align: -3px;
  margin-right: 6px;
  flex-shrink: 0;
}

.btn-block {
  width: 100%;
}

/* ── Hero Metrics Row ── */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  text-align: left;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 22px 20px;
  box-shadow: 0 4px 14px rgba(20, 20, 19, 0.03);
  transition: transform 200ms var(--ease-out-cubic), border-color 180ms var(--ease-standard), box-shadow 200ms var(--ease-out-cubic);
  will-change: transform;
}

@media (hover: hover) and (pointer: fine) {
  .metric-card:hover {
    transform: translateY(-3px);
    border-color: var(--purple-brand);
    box-shadow: 0 8px 24px rgba(94, 34, 146, 0.08);
  }
}

.metric-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--purple-brand);
  line-height: 1.2;
  margin-bottom: 4px;
}

.metric-title {
  display: block;
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 2px;
}

.metric-desc {
  display: block;
  font-size: 12.5px;
  color: var(--text-light);
  line-height: 1.4;
}

/* ── Section General ── */
.section {
  padding: var(--space-section) 0;
  position: relative;
}

.section-light {
  background: #ffffff;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  max-width: 700px;
  margin-bottom: clamp(32px, 5vw, 48px);
}

.text-center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--purple-brand);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.75rem, 3.8vw, 2.6rem);
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: clamp(0.98rem, 2vw, 1.1rem);
  line-height: 1.65;
  color: var(--text-muted);
}

/* ── Interactive Test Finder Tabs ── */
.test-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.test-tab {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 600;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 30px;
  border: 1.5px solid var(--border-strong);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform 120ms var(--ease-out-cubic), background 180ms var(--ease-standard), border-color 180ms var(--ease-standard), color 180ms var(--ease-standard);
  will-change: transform;
}

.test-tab:hover {
  color: var(--text-main);
  border-color: var(--text-main);
}

.test-tab:active {
  transform: scale(0.96);
}

.test-tab.active {
  background: var(--purple-brand);
  color: #ffffff;
  border-color: var(--purple-brand);
  box-shadow: 0 4px 14px rgba(94, 34, 146, 0.22);
}

.tab-content-wrapper {
  container-type: inline-size;
  width: 100%;
}

/* Emil Kowalski Tab Enter Animation (start scale 0.98, NOT scale 0) */
@keyframes tabEnterSmooth {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
  animation: tabEnterSmooth 240ms var(--ease-out-cubic) forwards;
  will-change: transform, opacity;
}

.test-spotlight {
  background: var(--bg-page);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 40px;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 40px;
  align-items: center;
  box-shadow: 0 8px 24px rgba(20, 20, 19, 0.02);
}

.pill-featured {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  background: var(--purple-soft);
  color: var(--purple-brand);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.test-spotlight-main h3 {
  font-size: 1.65rem;
  margin-bottom: 12px;
}

.spotlight-lede {
  font-size: 1.08rem;
  line-height: 1.65;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.spotlight-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.point-item {
  font-size: 0.95rem;
  line-height: 1.55;
  padding-left: 20px;
  position: relative;
}

.point-item::before {
  content: "•";
  position: absolute;
  left: 4px;
  color: var(--purple-brand);
  font-size: 1.4rem;
  line-height: 1;
  top: -2px;
}

.test-spotlight-side {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 6px 18px rgba(20, 20, 19, 0.03);
}

.price-box {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 16px;
  margin-bottom: 16px;
}

.price-label {
  display: block;
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--text-light);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.price-val {
  display: block;
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--purple-brand);
  line-height: 1.15;
  margin: 4px 0;
}

.price-sub {
  display: block;
  font-size: 13px;
  color: var(--text-light);
}

.meta-row {
  display: flex;
  justify-content: space-between;
  font-size: 13.5px;
  padding: 6px 0;
  color: var(--text-muted);
}

.meta-row strong {
  font-family: var(--font-display);
  color: var(--text-main);
}

.test-spotlight-side .btn {
  margin-top: 18px;
}

/* ── Simple 3 Steps Section ── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.step-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 36px 28px;
  position: relative;
  transition: transform 220ms var(--ease-out-cubic), box-shadow 220ms var(--ease-out-cubic), border-color 180ms var(--ease-standard);
  will-change: transform;
}

@media (hover: hover) and (pointer: fine) {
  .step-card:hover {
    transform: translateY(-4px);
    border-color: var(--purple-brand);
    box-shadow: 0 10px 24px rgba(94, 34, 146, 0.07);
  }
}

.step-badge {
  width: 44px;
  height: 44px;
  background: var(--purple-soft);
  color: var(--purple-brand);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: transform 200ms var(--ease-out-cubic);
}

@media (hover: hover) and (pointer: fine) {
  .step-card:hover .step-badge {
    transform: scale(1.08);
  }
}

.step-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.step-card p {
  font-size: 0.98rem;
  line-height: 1.62;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.step-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  color: var(--purple-brand);
  background: var(--bg-page);
  padding: 4px 10px;
  border-radius: 4px;
}

/* ── Why Baseline Comparison Cards ── */
.comparison-cards {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: stretch;
}

.comp-card {
  border-radius: 14px;
  padding: 38px 32px;
  transition: transform 220ms var(--ease-out-cubic), box-shadow 220ms var(--ease-out-cubic);
  will-change: transform;
}

.comp-baseline {
  background: #ffffff;
  border: 2px solid var(--purple-brand);
  box-shadow: 0 8px 24px rgba(94, 34, 146, 0.06);
}

@media (hover: hover) and (pointer: fine) {
  .comp-baseline:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(94, 34, 146, 0.1);
  }
}

.comp-traditional {
  background: var(--bg-tint);
  border: 1px solid var(--border-subtle);
  opacity: 0.92;
}

.comp-header {
  margin-bottom: 24px;
}

.comp-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  background: var(--purple-brand);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 8px;
}

.comp-badge-muted {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 8px;
}

.comp-header h3 {
  font-size: 1.45rem;
  margin-bottom: 4px;
}

.comp-header p {
  font-size: 14px;
  color: var(--text-light);
}

.comp-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.comp-features li {
  font-size: 0.96rem;
  line-height: 1.55;
  padding-left: 24px;
  position: relative;
}

.comp-baseline .comp-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--purple-brand);
  font-weight: 700;
}

.comp-traditional .comp-features li::before {
  content: "✕";
  position: absolute;
  left: 0;
  color: var(--text-light);
}

/* ── Team Cards ── */
.team-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.member-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  transition: transform 200ms var(--ease-out-cubic), box-shadow 200ms var(--ease-out-cubic), border-color 150ms var(--ease-standard);
  will-change: transform;
}

@media (hover: hover) and (pointer: fine) {
  .member-card:hover {
    transform: translateY(-4px);
    border-color: var(--purple-brand);
    box-shadow: 0 8px 20px rgba(94, 34, 146, 0.08);
  }
}

.member-avatar {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--purple-soft);
  color: var(--purple-brand);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--purple-light);
  transition: transform 200ms var(--ease-out-cubic);
}

@media (hover: hover) and (pointer: fine) {
  .member-card:hover .member-avatar {
    transform: scale(1.06);
  }
}

.member-card h3 {
  font-size: 1.15rem;
  margin-bottom: 4px;
}

.member-role {
  display: block;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--purple-brand);
  margin-bottom: 12px;
}

.member-card p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-muted);
}

/* ── FAQ Section (Silky Grid-Based Accordion Animation) ── */
.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 180ms var(--ease-standard), box-shadow 180ms var(--ease-standard);
}

.faq-item[open] {
  border-color: var(--purple-brand);
  box-shadow: 0 4px 14px rgba(94, 34, 146, 0.04);
}

.faq-quest {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.faq-quest::-webkit-details-marker {
  display: none;
}

.faq-quest span:first-child {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.35;
  transition: color 150ms var(--ease-standard);
}

.faq-quest:hover span:first-child {
  color: var(--purple-brand);
}

.faq-icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--purple-brand);
  transition: transform 200ms var(--ease-out-cubic);
}

.faq-icon::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.faq-icon::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.faq-item[open] .faq-icon::after {
  transform: scaleY(0);
}

.faq-item.is-closing .faq-icon::after {
  transform: scaleY(1);
}

/* Grid-based height transition (hardware smooth without JS height calculation) */
.faq-ans-wrapper {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 220ms var(--ease-out-cubic);
}

.faq-item[open] .faq-ans-wrapper {
  grid-template-rows: 1fr;
}

.faq-item.is-closing .faq-ans-wrapper {
  grid-template-rows: 0fr;
}

.faq-ans {
  overflow: hidden;
}

.faq-ans p {
  padding: 0 24px 22px;
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--text-muted);
}

/* ── Contact Section ── */
.contact-box {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 48px;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  box-shadow: 0 8px 30px rgba(20, 20, 19, 0.03);
}

.contact-p {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.method-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: transform 150ms var(--ease-out-cubic);
}

@media (hover: hover) and (pointer: fine) {
  .method-card:hover {
    transform: translateX(4px);
  }
}

.method-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--purple-soft);
  flex-shrink: 0;
}

.method-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text-main);
}

.method-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.link-wa {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: #075e54;
}

.link-wa:hover {
  text-decoration: underline;
}

/* ── Simple, Friendly Form ── */
.simple-form {
  background: var(--bg-page);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
}

.form-title {
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-field {
  margin-bottom: 16px;
}

.form-field label {
  display: block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  font-family: var(--font-display);
  font-size: 16px; /* 16px prevents iOS Safari viewport auto-zoom */
  padding: 12px 14px;
  min-height: 48px;
  border: 1.5px solid var(--border-strong);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text-main);
  transition: border-color 150ms var(--ease-standard), box-shadow 150ms var(--ease-standard);
  -webkit-appearance: none;
  appearance: none;
}

.form-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23575550' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: calc(100% - 14px) center;
  padding-right: 36px;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--purple-brand);
  box-shadow: 0 0 0 3px rgba(94, 34, 146, 0.12);
}

.form-field textarea {
  resize: vertical;
}

.form-guarantee {
  font-size: 12px;
  color: var(--text-light);
  text-align: center;
  margin-top: 12px;
}

.form-feedback {
  margin-top: 14px;
  padding: 12px 16px;
  background: var(--purple-soft);
  color: var(--purple-brand);
  border-radius: 6px;
  font-family: var(--font-display);
  font-size: 13.5px;
  line-height: 1.5;
  animation: tabEnterSmooth 200ms var(--ease-out-cubic);
}

/* ── Footer ── */
.footer {
  background: var(--text-main);
  color: rgba(255, 255, 255, 0.7);
  padding: 72px 0 36px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo {
  height: 42px;
  width: auto;
  filter: brightness(0) invert(1);
  margin-bottom: 14px;
}

.footer-tagline {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 6px;
}

.footer-note {
  font-size: 0.85rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links-col h4 {
  font-size: 0.95rem;
  color: #ffffff;
  margin-bottom: 14px;
}

.footer-links-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links-col a {
  font-family: var(--font-display);
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.65);
  transition: color 150ms var(--ease-standard);
}

.footer-links-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-bottom p {
  font-family: var(--font-display);
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.45);
}

.footer-disclaimer {
  font-size: 11.5px !important;
}

/* ── Floating WhatsApp Action (Purposeful & Restrained) ── */
.floating-wa {
  position: fixed;
  bottom: max(20px, env(safe-area-inset-bottom, 20px));
  right: max(20px, env(safe-area-inset-right, 20px));
  z-index: 99;
  background: var(--wa-green);
  color: #ffffff;
  width: 56px;
  height: 56px;
  min-width: 44px;
  min-height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
  transition: transform 180ms var(--ease-out-cubic), background 150ms var(--ease-standard), box-shadow 180ms var(--ease-standard);
  will-change: transform;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) and (pointer: fine) {
  .floating-wa:hover {
    background: var(--wa-green-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  }
}

.floating-wa:active {
  transform: scale(0.95);
}

.wa-icon-svg {
  display: flex;
  align-items: center;
  justify-content: center;
}

.wa-tooltip {
  position: absolute;
  right: 66px;
  background: var(--text-main);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(8px) scale(0.96);
  transition: opacity 180ms var(--ease-out-cubic), transform 180ms var(--ease-out-cubic);
}

@media (hover: hover) and (pointer: fine) {
  .floating-wa:hover .wa-tooltip {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

/* ── Scroll Reveal System (Progressive Enhancement & Hardware Acceleration) ── */
.reveal-on-scroll {
  opacity: 1;
  transform: none;
}

.js-ready .reveal-on-scroll {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 350ms var(--ease-out-quart), transform 350ms var(--ease-out-quart);
  will-change: opacity, transform;
}

.js-ready .reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered card groups */
.stagger-group .reveal-card {
  opacity: 1;
  transform: none;
}

.js-ready .stagger-group .reveal-card {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 350ms var(--ease-out-quart), transform 350ms var(--ease-out-quart);
  will-change: opacity, transform;
}

.js-ready .stagger-group.is-revealed .reveal-card:nth-child(1) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 40ms;
}

.js-ready .stagger-group.is-revealed .reveal-card:nth-child(2) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 110ms;
}

.js-ready .stagger-group.is-revealed .reveal-card:nth-child(3) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 180ms;
}

.js-ready .stagger-group.is-revealed .reveal-card:nth-child(4) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 250ms;
}

/* Hero reveal on load (Starts from scale 0.99, not scale 0) */
.reveal-item {
  opacity: 0;
  transform: translateY(12px) scale(0.99);
  animation: heroItemReveal 400ms var(--ease-out-quart) forwards;
  will-change: opacity, transform;
}

.hero-title.reveal-item { animation-delay: 60ms; }
.hero-description.reveal-item { animation-delay: 130ms; }
.hero-actions.reveal-item { animation-delay: 200ms; }

@keyframes heroItemReveal {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ── Responsive Adaptations (Mobile-First & Modern Breakpoints) ── */
@media (max-width: 992px) {
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .test-spotlight {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px;
  }

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

  .comparison-cards {
    grid-template-columns: 1fr;
  }

  .team-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-box {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 36px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  /* Prevent background scrolling when mobile menu drawer is open */
  body.nav-locked {
    overflow: hidden;
  }

  .header-inner {
    height: 68px;
  }

  .brand-logo {
    height: 42px;
  }

  .top-banner-inner {
    flex-direction: column;
    text-align: center;
    gap: 6px;
    padding: 2px 0;
  }

  .banner-link {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 2px 8px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav {
    display: block;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    max-height: calc(100dvh - 68px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: rgba(250, 249, 245, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 20px var(--gutter) 32px;
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 12px 32px rgba(20, 20, 19, 0.09);
    opacity: 0;
    transform: translateY(-8px) scale(0.99);
    pointer-events: none;
    visibility: hidden;
    transition: opacity 200ms var(--ease-out-cubic), transform 200ms var(--ease-out-cubic), visibility 200ms;
    will-change: opacity, transform;
  }

  .nav.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
    visibility: visible;
  }

  .nav-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .nav-menu a {
    font-size: 16px;
    padding: 12px 0;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .btn-nav {
    width: 100%;
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-top: 12px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
    min-height: 48px;
  }

  /* Horizontal swipeable tabs on touchscreens */
  .test-tabs {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding: 4px var(--gutter) 12px;
    margin: 0 calc(var(--gutter) * -1) 24px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .test-tabs::-webkit-scrollbar {
    display: none;
  }

  .test-tab {
    flex-shrink: 0;
    white-space: nowrap;
    padding: 8px 16px;
    font-size: 13.5px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .team-cards-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .wa-tooltip {
    display: none;
  }
}

/* ── Small Mobile / Compact Phones (max-width: 480px) ── */
@media (max-width: 480px) {
  .test-spotlight {
    padding: 20px 16px;
    border-radius: 10px;
    gap: 24px;
  }

  .test-spotlight-side {
    padding: 20px 16px;
    border-radius: 10px;
  }

  .price-val {
    font-size: 1.65rem;
  }

  .step-card {
    padding: 24px 18px;
  }

  .comp-card {
    padding: 24px 18px;
  }

  .member-card {
    padding: 22px 16px;
  }

  .contact-box {
    padding: 20px 16px;
    border-radius: 12px;
  }

  .simple-form {
    padding: 20px 16px;
    border-radius: 10px;
  }

  .faq-quest {
    padding: 16px 14px;
  }

  .faq-ans p {
    padding: 0 14px 18px;
  }

  .method-card {
    gap: 12px;
  }

  .method-icon {
    width: 38px;
    height: 38px;
  }
}

/* ── Accessibility & Reduced Motion (Strict compliance with web-animation-design) ── */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }

  .reveal-on-scroll,
  .stagger-group .reveal-card,
  .reveal-item {
    opacity: 1 !important;
    transform: none !important;
  }

  .tab-pane.active {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .floating-wa {
    animation: none !important;
    transform: none !important;
  }

  .strand-a,
  .strand-b,
  .dna-node {
    animation: none !important;
  }
}

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