/* ═══════════════════════════════════════════════
   Tony Kang Labs — Scientific Precision Design
   Palette: Warm White / Steel Blue
   Fonts: DM Serif Display + DM Sans
═══════════════════════════════════════════════ */

:root {
  --bg:           #F7F6F3;
  --surface:      #FFFFFF;
  --surface-2:    #F0EEE9;
  --accent:       #2B5BA8;
  --accent-hover: #204A91;
  --accent-dim:   #E0EAFC;
  --text-primary: #181818;
  --text-secondary:#5A5A5A;
  --text-muted:   #8C8C8C;
  --border:       #E3DFD9;
  --border-light: #ECEAE6;
  --footer-bg:    #111827;
  --footer-text:  #9AA3B1;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --radius:       8px;
  --radius-lg:    16px;
  --shadow:       0 2px 16px rgba(43, 91, 168, 0.07);
  --shadow-md:    0 6px 28px rgba(43, 91, 168, 0.10);
  --shadow-lg:    0 14px 52px rgba(43, 91, 168, 0.13);
  --ease:         cubic-bezier(0.4, 0, 0.2, 1);
  --dur:          0.28s;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

/* ── TYPOGRAPHY ──────────────────────────────── */
h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.18;
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

h4 {
  font-family: var(--font-body);
  line-height: 1.4;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.25rem); }
h4 { font-size: 0.9rem; }

p   { color: var(--text-secondary); line-height: 1.78; }
em  { font-style: italic; color: var(--accent); }
a   { color: inherit; text-decoration: none; }
strong { font-weight: 600; color: var(--text-primary); }

/* ── LAYOUT ──────────────────────────────────── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5.5rem 0;
}

/* ── SECTION LABELS ──────────────────────────── */
.section-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.3rem 0.7rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-header.centered {
  text-align: center;
}

.section-title {
  max-width: 560px;
}

.section-header.centered .section-title {
  margin: 0 auto;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 0.97rem;
  margin-top: 0.75rem;
  max-width: 460px;
  margin-left: auto;
  margin-right: auto;
}

/* ── BUTTONS ─────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--accent);
  color: #fff;
  padding: 0.78rem 1.65rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border: none;
  cursor: pointer;
  transition: background var(--dur) var(--ease),
              transform  var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(43, 91, 168, 0.28);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.78rem 1.45rem;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  background: transparent;
  transition: border-color var(--dur) var(--ease),
              color       var(--dur) var(--ease),
              background  var(--dur) var(--ease);
  text-decoration: none;
  white-space: nowrap;
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.72rem 1.45rem;
  border-radius: var(--radius);
  border: 1.5px solid var(--accent);
  background: transparent;
  transition: background var(--dur) var(--ease),
              color      var(--dur) var(--ease);
  text-decoration: none;
}

.btn-outline:hover {
  background: var(--accent);
  color: #fff;
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.83rem;
  font-weight: 500;
  transition: background var(--dur) var(--ease);
  text-decoration: none;
  white-space: nowrap;
}

.btn-nav:hover { background: var(--accent-hover); }

/* ── GATE ────────────────────────────────────── */
.gate {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 26, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1.5rem;
  transition: opacity 0.4s var(--ease);
}

.gate-box {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2.75rem 2.5rem 2.25rem;
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.gate-mark { margin-bottom: 1.1rem; }

.gate-tag {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.gate-box h2 {
  font-size: 1.7rem;
  margin-bottom: 1rem;
}

.gate-box p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.7rem;
  line-height: 1.7;
}

.gate-btn {
  margin: 1.2rem auto 0;
  display: flex;
  justify-content: center;
}

.gate-footnote {
  font-size: 0.73rem !important;
  color: var(--text-muted) !important;
  margin-top: 0.9rem !important;
  margin-bottom: 0 !important;
  line-height: 1.5 !important;
}

/* ── NAVBAR ──────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 246, 243, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--dur) var(--ease);
}

.navbar.scrolled {
  box-shadow: 0 2px 18px rgba(43, 91, 168, 0.08);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-mark {
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.48rem;
  border-radius: 4px;
  line-height: 1.5;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.nav-link {
  font-size: 0.86rem;
  font-weight: 400;
  color: var(--text-secondary);
  padding: 0.48rem 0.85rem;
  border-radius: var(--radius);
  transition: color var(--dur) var(--ease),
              background var(--dur) var(--ease);
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.nav-links .btn-nav { margin-left: 0.5rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease),
              opacity   var(--dur) var(--ease);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 1.5rem 1rem;
}

.mobile-menu a {
  font-size: 0.93rem;
  color: var(--text-secondary);
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border-light);
  transition: color var(--dur) var(--ease);
}

.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--accent); }
.mobile-menu.open { display: flex; }

/* ── HERO ────────────────────────────────────── */
.hero {
  position: relative;
  padding: 5.5rem 0 5rem;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(43,91,168,0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43,91,168,0.055) 1px, transparent 1px);
  background-size: 38px 38px;
}

.hero-molecule {
  position: absolute;
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
  width: 580px;
  height: 580px;
  animation: moleculeRotate 60s linear infinite;
  transform-origin: center center;
}

@keyframes moleculeRotate {
  from { transform: translateY(-50%) rotate(0deg); }
  to   { transform: translateY(-50%) rotate(360deg); }
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

/* Hero content animations */
.hero-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(43, 91, 168, 0.4);
  padding: 0.3rem 0.7rem;
  border-radius: 100px;
  margin-bottom: 1.4rem;
  opacity: 0;
  animation: fadeUp 0.75s var(--ease) 0.05s forwards;
}

.hero-title {
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp 0.75s var(--ease) 0.2s forwards;
}

.hero-subtitle {
  font-size: 1.03rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 480px;
  opacity: 0;
  animation: fadeUp 0.75s var(--ease) 0.35s forwards;
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp 0.75s var(--ease) 0.5s forwards;
}

.hero-disclaimer {
  font-size: 0.77rem;
  color: var(--text-muted);
  opacity: 0;
  animation: fadeUp 0.75s var(--ease) 0.65s forwards;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  opacity: 0;
  animation: fadeUp 0.75s var(--ease) 0.4s forwards;
}

/* Purity card */
.purity-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow-md);
}

.purity-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.purity-value {
  display: block;
  font-family: var(--font-display);
  font-size: 3.4rem;
  line-height: 1;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
  letter-spacing: -0.02em;
}

.purity-unit {
  font-size: 1.65rem;
  color: var(--accent);
}

.purity-sub {
  display: block;
  font-size: 0.77rem;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}

.purity-bar {
  height: 3px;
  background: var(--border);
  border-radius: 100px;
  overflow: hidden;
}

.purity-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(to right, var(--accent), #6CA3E8);
  border-radius: 100px;
  transition: width 1.6s cubic-bezier(0.22, 1, 0.36, 1) 0.8s;
}

.purity-fill.animated { width: 98.4%; }

/* Stats row */
.stat-row {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-around;
  box-shadow: var(--shadow);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.18rem;
  flex: 1;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: 0.01em;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.02em;
}

.stat-divider {
  width: 1px;
  height: 38px;
  background: var(--border);
  flex-shrink: 0;
}

/* ── ABOUT ───────────────────────────────────── */
.about {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.about-text .lead-text {
  font-size: 1.07rem;
  color: var(--text-primary);
  margin-bottom: 1.1rem;
  line-height: 1.72;
}

.about-text p {
  margin-bottom: 0.9rem;
  font-size: 0.92rem;
}

.about-text .btn-outline { margin-top: 1.6rem; }

.about-features {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-top: 0.25rem;
}

.feature-item {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
}

.feature-icon {
  width: 34px;
  height: 34px;
  border-radius: 7px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

.feature-item h4 {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-primary);
  margin-bottom: 0.28rem;
}

.feature-item p {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.62;
}

/* ── BENEFITS ────────────────────────────────── */
.benefits {
  background: var(--bg);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.benefit-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 2rem 2.25rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}

.benefit-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(43, 91, 168, 0.25);
}

.benefit-card:hover::before { transform: scaleX(1); }

.benefit-num {
  font-family: var(--font-display);
  font-size: 3.2rem;
  color: var(--accent-dim);
  line-height: 1;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  user-select: none;
}

.benefit-card h3 {
  font-size: 1.08rem;
  margin-bottom: 0.65rem;
  color: var(--text-primary);
}

.benefit-card p {
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--text-secondary);
}

/* ── SEO CONTENT ─────────────────────────────── */
.seo-content {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.seo-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 4.5rem;
  align-items: start;
}

.seo-main .section-tag { margin-bottom: 0.9rem; }
.seo-main h2 { margin-bottom: 1.5rem; }

.seo-main h3 {
  font-family: var(--font-body);
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.8rem 0 0.65rem;
  letter-spacing: 0.01em;
}

.seo-main p {
  font-size: 0.9rem;
  line-height: 1.82;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
}

.sidebar-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  margin-bottom: 1.1rem;
}

.sidebar-card h4 {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.sidebar-steps {
  list-style: none;
  counter-reset: steps;
}

.sidebar-steps li {
  counter-increment: steps;
  font-size: 0.83rem;
  color: var(--text-secondary);
  padding: 0.6rem 0 0.6rem 2rem;
  border-bottom: 1px solid var(--border-light);
  position: relative;
  line-height: 1.5;
}

.sidebar-steps li:last-child { border-bottom: none; }

.sidebar-steps li::before {
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0.6rem;
  background: var(--accent);
  color: #fff;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.62rem;
  font-weight: 700;
  line-height: 18px;
  text-align: center;
}

.sidebar-note {
  background: var(--accent-dim);
  border: 1px solid rgba(43, 91, 168, 0.18);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
}

.sidebar-note p {
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--accent);
  margin: 0;
}

/* ── CONTACT ─────────────────────────────────── */
.contact { background: var(--bg); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 0.5rem;
}

.contact-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.4rem 1.75rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: transform     var(--dur) var(--ease),
              box-shadow    var(--dur) var(--ease),
              border-color  var(--dur) var(--ease);
  cursor: pointer;
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.contact-icon {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  transition: background var(--dur) var(--ease),
              color      var(--dur) var(--ease);
}

.contact-card:hover .contact-icon {
  background: var(--accent);
  color: #fff;
}

.contact-card h3 {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.contact-detail {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  margin: 0;
  line-height: 1.4;
}

.contact-cta {
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-light);
  padding-top: 0.7rem;
  width: 100%;
  text-align: center;
  letter-spacing: 0.02em;
  margin-top: 0.2rem;
  transition: color var(--dur) var(--ease);
}

.contact-card:hover .contact-cta { color: var(--accent); }

/* ── DISCLAIMERS ─────────────────────────────── */
.disclaimers {
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.disclaimer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.disclaimer-item {
  padding: 1.6rem 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.disclaimer-item h4 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 0.7rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border);
}

.disclaimer-item p {
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ── FOOTER ──────────────────────────────────── */
.footer {
  background: var(--footer-bg);
  padding: 4rem 0 2.5rem;
}

.footer-inner {}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  align-items: start;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.footer-brand .logo-mark { background: var(--accent); }

.footer-brand .logo-text {
  color: rgba(255, 255, 255, 0.85);
}

.footer-col-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 0.85rem;
}

.footer-contact-col,
.footer-nav-col {
  display: flex;
  flex-direction: column;
}

.footer-link {
  font-size: 0.84rem;
  color: var(--footer-text);
  text-decoration: none;
  padding: 0.28rem 0;
  transition: color var(--dur) var(--ease);
}

.footer-link:hover { color: #fff; }

.footer-nav-col nav {
  display: flex;
  flex-direction: column;
}

.footer-nav-col .footer-link {
  font-size: 0.84rem;
  color: var(--footer-text);
  text-decoration: none;
  padding: 0.28rem 0;
  transition: color var(--dur) var(--ease);
}

.footer-nav-col .footer-link:hover { color: #fff; }

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-disclaimer {
  font-size: 0.77rem;
  color: rgba(154, 163, 177, 0.7);
  max-width: 720px;
  line-height: 1.65;
}

.footer-copy {
  font-size: 0.76rem;
  color: rgba(154, 163, 177, 0.4);
}

/* ── REVEAL ANIMATIONS ───────────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s var(--ease),
              transform 0.55s var(--ease);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ── LEGACY COMPAT ───────────────────────────── */
.disclaimer {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.5rem 1.75rem;
  transition: box-shadow var(--dur) var(--ease);
}

.card:hover { box-shadow: var(--shadow-md); }

.card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.card button {
  font-family: var(--font-body);
  font-size: 0.83rem;
  font-weight: 500;
  padding: 0.55rem 1.1rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--dur) var(--ease);
}

.card button:hover { background: var(--accent-hover); }

.inquiry-box {
  margin-top: 2.5rem;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.inquiry-box h3 { margin-bottom: 0.75rem; }
.inquiry-box ul { padding-left: 1.25rem; margin-bottom: 0.75rem; }
.inquiry-box li { font-size: 0.88rem; color: var(--text-secondary); }

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 1060px) {
  .hero-molecule { width: 440px; height: 440px; right: -80px; }
  .seo-grid      { grid-template-columns: 1fr 280px; gap: 3rem; }
}

@media (max-width: 900px) {
  .hero-inner         { grid-template-columns: 1fr; gap: 3rem; }
  .hero-molecule      { display: none; }
  .hero-visual        { max-width: 500px; }
  .about-grid         { grid-template-columns: 1fr; gap: 3rem; }
  .contact-grid       { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
  .seo-grid           { grid-template-columns: 1fr; }
  .footer-top         { grid-template-columns: 1fr; gap: 2rem; }
  .nav-links          { display: none; }
  .nav-toggle         { display: flex; }
  .disclaimer-grid    { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .section            { padding: 3.75rem 0; }
  .hero               { padding: 3.75rem 0 3.25rem; }
  .benefits-grid      { grid-template-columns: 1fr; }
  .contact-grid       { max-width: 100%; }
  .disclaimer-grid    { grid-template-columns: 1fr; }
  .hero-actions       { flex-direction: column; align-items: flex-start; }
}