/* ==========================================================================
   Alvin Lab — homepage sections
   ========================================================================== */

/* ---------- hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(44px, 6vw, 84px) clamp(56px, 7vw, 96px);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(0, 168, 240, 0.13), transparent 58%),
    radial-gradient(80% 70% at 5% 105%, rgba(0, 96, 192, 0.09), transparent 60%),
    #fff;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(6, 23, 44, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(6, 23, 44, 0.045) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(75% 65% at 62% 22%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(75% 65% at 62% 22%, #000 0%, transparent 78%);
  pointer-events: none;
}
.hero__in {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero__copy {
  max-width: 620px;
}
.hero h1 {
  margin-top: 18px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--brand-600) 10%, var(--brand-400) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lede {
  margin-top: 22px;
  max-width: 54ch;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--muted);
}
.hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.hero__meta svg {
  width: 15px;
  height: 15px;
  color: var(--brand-500);
  flex: none;
}

/* report specimen card */
.hero__art {
  position: relative;
  display: grid;
  place-items: center;
  padding-block: 8px;
}
.hero__art::before {
  content: "";
  position: absolute;
  width: 118%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 45%, rgba(0, 168, 240, 0.16), transparent 62%);
  filter: blur(6px);
}
.spec {
  position: relative;
  width: min(100%, 430px);
  background: #fff;
  border-radius: 18px;
  border: 1px solid rgba(227, 233, 242, 0.9);
  box-shadow: var(--sh-3);
  padding: 22px 22px 18px;
  transform: rotate(-1.6deg);
  transition: transform 0.5s var(--ease);
}
.spec:hover {
  transform: rotate(-0.6deg) translateY(-4px);
}
.spec__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-2);
}
.spec__mark {
  width: 34px;
  height: 34px;
  object-fit: contain;
  flex: none;
}
.spec__kicker {
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted-2);
  font-weight: 600;
}
.spec__no {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
  margin-top: 1px;
}
.spec__seal {
  margin-left: auto;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #0a7a4a;
  background: #e6f7ee;
  border: 1px solid #c5ebd7;
  padding: 4px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.spec__rows {
  padding: 4px 0 2px;
}
.spec__rows > div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line-2);
  font-size: 0.8rem;
}
.spec__rows span {
  color: var(--muted-2);
  flex: none;
}
.spec__rows strong {
  font-weight: 500;
  color: var(--ink-2);
  text-align: right;
}
.spec__result {
  margin-top: 14px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  border-radius: 12px;
  background: linear-gradient(180deg, #f7fbff, #eef6fd);
  border: 1px solid #e0eefa;
}
.spec__result span {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.spec__result b {
  font-size: 1.9rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--brand-800);
  font-variant-numeric: tabular-nums;
}
.spec__result b i {
  font-style: normal;
  font-size: 0.95rem;
  color: var(--muted);
  margin-left: 2px;
}
.spec__bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 34px;
}
.spec__bars i {
  width: 7px;
  border-radius: 2px 2px 0 0;
  background: linear-gradient(180deg, var(--brand-400), var(--brand-600));
  opacity: 0.85;
}
.spec__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line-2);
}
.spec__barcode {
  height: 22px;
  flex: 1;
  max-width: 168px;
  border-radius: 2px;
  background: repeating-linear-gradient(
    90deg,
    rgba(6, 23, 44, 0.82) 0 1px,
    transparent 1px 3px,
    rgba(6, 23, 44, 0.82) 3px 5px,
    transparent 5px 6px,
    rgba(6, 23, 44, 0.82) 6px 8px,
    transparent 8px 11px
  );
  opacity: 0.55;
}
.spec__foot .mono {
  font-size: 0.68rem;
  color: var(--muted-2);
}
.spec-float {
  position: absolute;
  left: max(0px, calc(50% - 300px));
  bottom: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 14px;
  box-shadow: var(--sh-2);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--ink-2);
  transform: rotate(1.4deg);
}
.spec-float svg {
  width: 18px;
  height: 18px;
  color: var(--brand-500);
}
.spec-float b {
  display: block;
  font-weight: 600;
}
.spec-float span {
  color: var(--muted-2);
  font-size: 0.72rem;
}

/* ---------- stats strip ---------- */
.stats {
  border-block: 1px solid var(--line);
  background: #fff;
}
.stats__in {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
}
.stats__cell {
  background: #fff;
  padding: 26px 8px;
  text-align: center;
}
.stats__cell b {
  display: block;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.stats__cell b em {
  font-style: normal;
  color: var(--brand-500);
}
.stats__cell span {
  display: block;
  margin-top: 6px;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-2);
}

/* ---------- services ---------- */
.head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.svc {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 46px;
}
.svc__card {
  position: relative;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color 0.2s var(--ease), box-shadow 0.24s var(--ease),
    transform 0.24s var(--ease);
  overflow: hidden;
}
.svc__card::after {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-500), var(--brand-400));
  opacity: 0;
  transition: opacity 0.24s var(--ease);
}
.svc__card:hover {
  transform: translateY(-3px);
  border-color: #d6e4f2;
  box-shadow: var(--sh-2);
}
.svc__card:hover::after {
  opacity: 1;
}
.svc__icon {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--brand-100);
  color: var(--brand-700);
  margin-bottom: 18px;
}
.svc__icon svg {
  width: 22px;
  height: 22px;
}
.svc__card h3 {
  font-size: 1.06rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.svc__card p {
  margin-top: 10px;
  font-size: 0.9rem;
  line-height: 1.62;
  color: var(--muted);
}
.svc__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}
.svc__tags span {
  font-size: 0.7rem;
  font-family: var(--mono);
  color: var(--brand-700);
  background: #f2f8fe;
  border: 1px solid #e0eefa;
  padding: 3px 7px;
  border-radius: 5px;
}

/* ---------- quality (dark) ---------- */
.qual {
  position: relative;
  overflow: hidden;
}
.qual::before {
  content: "";
  position: absolute;
  width: 720px;
  height: 720px;
  right: -220px;
  top: -280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 168, 240, 0.28), transparent 62%);
  pointer-events: none;
}
.qual__in {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: start;
}
.qual h2 {
  color: #fff;
  margin-top: 16px;
}
.qual p.lede {
  color: #a8c0d8;
  margin-top: 20px;
}
.qual__list {
  display: grid;
  gap: 1px;
  background: rgba(147, 169, 194, 0.16);
  border: 1px solid rgba(147, 169, 194, 0.16);
  border-radius: var(--radius);
  overflow: hidden;
}
.qual__item {
  background: #031428;
  padding: 22px 24px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: background-color 0.2s var(--ease);
}
.qual__item:hover {
  background: #04192f;
}
.qual__num {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--brand-300);
  padding-top: 3px;
  flex: none;
  letter-spacing: 0.02em;
}
.qual__item h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.01em;
}
.qual__item p {
  margin-top: 6px;
  font-size: 0.875rem;
  line-height: 1.6;
  color: #93a9c2;
}

/* ---------- process ---------- */
.proc {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 48px;
  counter-reset: step;
}
.proc__step {
  position: relative;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.proc__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 28px;
  height: 2px;
  background: var(--brand-500);
  border-radius: 2px;
}
.proc__step .n {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--brand-600);
  letter-spacing: 0.08em;
}
.proc__step h3 {
  margin-top: 10px;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -0.012em;
}
.proc__step p {
  margin-top: 8px;
  font-size: 0.885rem;
  line-height: 1.62;
  color: var(--muted);
}

/* ---------- verify band ---------- */
.verify {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #001845 0%, #002a63 55%, #00397f 100%);
  color: #eaf2fb;
}
.verify::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 82% 18%, rgba(76, 196, 247, 0.28), transparent 42%),
    linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: auto, 64px 100%;
  pointer-events: none;
}
.verify__in {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.verify h2 {
  color: #fff;
  margin-top: 16px;
}
.verify p {
  margin-top: 18px;
  color: #a9c2dc;
  max-width: 46ch;
}
.verify__panel {
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius-lg);
  padding: clamp(22px, 3vw, 30px);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.6);
  color: var(--ink);
}
.verify__panel h3 {
  font-size: 1.04rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.verify__panel p.hint {
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.55;
}
.lookup {
  display: flex;
  gap: 8px;
  margin-top: 18px;
}
.lookup .field {
  flex: 1;
}
.lookup .btn {
  flex: none;
}

/* ---------- contact ---------- */
.contact__in {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}
.contact__cards {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}
.contact__card {
  display: flex;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.contact__card:hover {
  border-color: #d6e4f2;
  box-shadow: var(--sh-1);
}
.contact__card svg {
  width: 18px;
  height: 18px;
  color: var(--brand-600);
  flex: none;
  margin-top: 2px;
}
.contact__card b {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
  font-weight: 600;
}
.contact__card span,
.contact__card a {
  display: block;
  margin-top: 3px;
  font-size: 0.95rem;
  color: var(--ink-2);
}
.contact__card a:hover {
  color: var(--brand-600);
}
.form-card {
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--sh-2);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-grid .full {
  grid-column: 1 / -1;
}
.form-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 7px;
}
.form-card .btn {
  width: 100%;
  margin-top: 18px;
  height: 52px;
}
.form-card .field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235a6b80' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 36px;
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .svc {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 980px) {
  .hero__in,
  .qual__in,
  .verify__in,
  .contact__in {
    grid-template-columns: 1fr;
  }
  .hero__art {
    margin-top: 6px;
    margin-bottom: 8px;
  }
  .hero__copy {
    max-width: none;
  }
  .spec {
    width: min(100%, 400px);
  }
  .spec-float {
    left: auto;
    right: 4px;
    bottom: -6px;
  }
  .proc {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}
@media (max-width: 720px) {
  .stats__in {
    grid-template-columns: 1fr 1fr;
  }
  .stats__cell {
    padding: 20px 6px;
  }
  .svc {
    grid-template-columns: 1fr;
    margin-top: 32px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .lookup {
    flex-direction: column;
  }
  .lookup .btn {
    width: 100%;
  }
  .hero__actions .btn {
    flex: 1 1 auto;
  }
  .spec-float {
    display: none;
  }
  .proc__step {
    padding-top: 20px;
  }
}
@media (max-width: 480px) {
  .proc {
    grid-template-columns: 1fr;
  }
  .hero__meta {
    font-size: 0.8rem;
    gap: 8px 18px;
  }
}