/* ==========================================================================
   Bioran Pharma — Design system
   Direction A: Industrial / technical. Indigo (logo #4454a4), paper white, light-indigo accent.
   No decorative gradients on content, no rounded-everything, hairline rules.
   ========================================================================== */

:root {
  /* Palette sampled from the Bioran wordmark: #4454a4 */
  --navy-900: #121a3d;
  --navy-800: #1b2352;
  --navy-700: #28326999;
  --navy: #24305f;
  --amber: #4454a4;
  --amber-dark: #37478c;
  --amber-wash: #eef1fb;

  --ink: #131a30;
  --slate: #545f7c;
  --slate-light: #828ca6;
  --line: #dde0ef;
  --line-strong: #c5cae0;
  --paper: #ffffff;
  --wash: #f5f6fc;
  --wash-2: #eceffa;
  --green: #2c7a63;

  --font-sans: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono",
    Menlo, monospace;

  --max: 1240px;
  --gutter: 32px;
  --radius: 3px;
  --header-h: 74px;

  --shadow-sm: 0 1px 2px rgba(18, 26, 61, 0.06);
  --shadow-md: 0 12px 32px -12px rgba(18, 26, 61, 0.22);
  --shadow-lg: 0 24px 60px -24px rgba(18, 26, 61, 0.35);
}

/* --------------------------------------------------------------- reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.62;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.018em;
  line-height: 1.15;
  color: var(--ink);
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

button {
  font: inherit;
  cursor: pointer;
}

::selection {
  background: #cdd4f4;
  color: var(--navy-900);
}

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ------------------------------------------------------------- layout */
.container {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: 88px;
}

.section--tight {
  padding-block: 56px;
}

.section--wash {
  background: var(--wash);
  border-block: 1px solid var(--line);
}

.section--navy {
  background: var(--navy-900);
  color: #d5daf0;
}

.section--navy h2,
.section--navy h3 {
  color: #fff;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 72px;
  align-items: center;
}

/* ----------------------------------------------------------- typography */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
}

.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 2.4vw, 2.15rem);
  margin-bottom: 16px;
}

.section-head p {
  color: var(--slate);
  font-size: 1.02rem;
  margin: 0;
}

.lead {
  font-size: 1.06rem;
  color: var(--slate);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.86em;
  letter-spacing: 0.01em;
}

.muted {
  color: var(--slate);
}

.small {
  font-size: 0.82rem;
  line-height: 1.5;
}

/* -------------------------------------------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding-inline: 24px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease,
    transform 0.18s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--navy);
  color: #fff;
}

.btn--primary:hover {
  background: var(--navy-900);
}

.btn--amber {
  background: var(--amber);
  color: #fff;
}

.btn--amber:hover {
  background: var(--amber-dark);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--navy);
  background: transparent;
}

.btn--ghost:hover {
  border-color: var(--navy);
  background: var(--wash);
}

.btn--onDark {
  border-color: rgba(255, 255, 255, 0.32);
  color: #fff;
}

.btn--onDark:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--sm {
  height: 40px;
  padding-inline: 18px;
  font-size: 0.72rem;
}

.btn--block {
  width: 100%;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy);
}

.link-arrow::after {
  content: "→";
  transition: transform 0.18s ease;
}

.link-arrow:hover {
  color: var(--amber-dark);
}

.link-arrow:hover::after {
  transform: translateX(4px);
}

/* ---------------------------------------------------------------- chips */
.chip {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
  line-height: 1.5;
  white-space: nowrap;
}

.chip--doc {
  border-color: #ccd2ea;
  background: var(--amber-wash);
  color: var(--amber-dark);
}

.chip--cat {
  border-color: var(--navy-800);
  background: var(--navy-900);
  color: #fff;
}

/* -------------------------------------------------------------- header */
.utility {
  background: var(--navy-900);
  color: #a9bccb;
  font-size: 0.74rem;
  letter-spacing: 0.02em;
}

.utility__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 38px;
}

.utility__list {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.utility__list li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.utility__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--amber);
  flex: none;
}

.utility a:hover {
  color: #fff;
}

.header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header.is-stuck {
  box-shadow: 0 1px 16px rgba(18, 26, 61, 0.1);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: none;
}

.logo__mark {
  width: 34px;
  height: 34px;
  flex: none;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo__name {
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--navy-900);
  text-transform: uppercase;
}

.logo__sub {
  margin-top: 4px;
  font-size: 8.5px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--slate-light);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 13px;
  font-size: 0.87rem;
  font-weight: 500;
  color: var(--navy-800);
  border-radius: 2px;
}

.nav__link:hover {
  color: var(--amber-dark);
  background: var(--wash);
}

.nav__link[aria-current="page"] {
  color: var(--amber-dark);
  font-weight: 600;
}

.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 4px;
  height: 2px;
  background: var(--amber);
}

.nav__caret {
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  opacity: 0.6;
}

/* dropdown */
.has-menu {
  position: relative;
}

.menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  width: 520px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
}

.has-menu:hover .menu,
.has-menu:focus-within .menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.menu__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

.menu__item {
  display: block;
  padding: 12px 14px;
  border-radius: 2px;
}

.menu__item:hover {
  background: var(--wash);
}

.menu__item strong {
  display: block;
  font-size: 0.88rem;
  color: var(--navy-900);
  margin-bottom: 2px;
}

.menu__item span {
  font-size: 0.76rem;
  color: var(--slate);
}

.menu__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding: 12px 14px 8px;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
}

.header__cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.burger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: none;
  border-radius: 2px;
}

.burger span {
  position: relative;
  width: 18px;
  height: 1.5px;
  background: var(--navy-900);
  display: block;
}

.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: var(--navy-900);
}

.burger span::before {
  top: -6px;
}

.burger span::after {
  top: 6px;
}

/* mobile drawer */
.drawer {
  display: none;
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 12px var(--gutter) 24px;
}

.drawer.is-open {
  display: block;
}

.drawer a {
  display: block;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
  font-weight: 500;
}

.drawer .drawer__sub a {
  padding-left: 16px;
  font-size: 0.88rem;
  color: var(--slate);
  font-weight: 400;
}

/* ----------------------------------------------------------------- hero */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--wash) 0%, #fff 100%);
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.45;
  mask-image: radial-gradient(ellipse at 75% 20%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse at 75% 20%, #000 0%, transparent 72%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 64px;
  align-items: center;
  padding-block: 92px 88px;
}

.hero h1 {
  font-size: clamp(2.1rem, 3.9vw, 3.35rem);
  line-height: 1.06;
  letter-spacing: -0.028em;
  margin-bottom: 24px;
}

.hero h1 em {
  font-style: normal;
  color: var(--navy);
  box-shadow: inset 0 -0.34em 0 #dfe4f9;
}

.hero__sub {
  max-width: 52ch;
  font-size: 1.07rem;
  color: var(--slate);
  margin-bottom: 32px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  padding-top: 26px;
  border-top: 1px solid var(--line-strong);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate);
}

.hero__trust span {
  display: flex;
  align-items: center;
  gap: 7px;
}

.hero__trust svg {
  width: 14px;
  height: 14px;
  color: var(--amber);
  flex: none;
}

/* spec card */
.speccard {
  position: relative;
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.speccard__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--navy-900);
  border-radius: var(--radius) var(--radius) 0 0;
  color: #fff;
}

.speccard__label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #b9c1e6;
}

.speccard__status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #a9e0c0;
}

.speccard__status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4cc47f;
  box-shadow: 0 0 0 3px rgba(76, 196, 127, 0.2);
}

.speccard__body {
  padding: 22px 20px 8px;
}

.speccard__name {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--navy-900);
  letter-spacing: -0.01em;
}

.speccard__cas {
  margin-top: 4px;
  font-size: 0.76rem;
  color: var(--slate);
}

.speccard__rows {
  margin-top: 16px;
}

.speccard__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-top: 1px dashed var(--line);
  font-size: 0.82rem;
}

.speccard__row dt {
  color: var(--slate);
  flex: none;
}

.speccard__row dd {
  margin: 0;
  text-align: right;
  font-weight: 600;
  color: var(--navy-900);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.speccard__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 16px 20px 20px;
  border-top: 1px solid var(--line);
}

/* ---------------------------------------------------------------- stats */
.stats {
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stat {
  padding: 30px 28px;
  border-left: 1px solid var(--line);
}

.stat:first-child {
  border-left: 0;
  padding-left: 0;
}

.stat__value {
  display: block;
  font-size: 2.05rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--navy-900);
  line-height: 1;
}

.stat__label {
  display: block;
  margin-top: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}

/* ---------------------------------------------------------- category card */
.catcard {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.catcard:hover {
  border-color: var(--navy);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.catcard__icon {
  width: 34px;
  height: 34px;
  color: var(--navy);
  margin-bottom: 22px;
}

.catcard__count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber-dark);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.catcard h3 {
  font-size: 1.06rem;
  line-height: 1.3;
  margin-bottom: 10px;
}

.catcard p {
  font-size: 0.86rem;
  color: var(--slate);
  line-height: 1.55;
  margin-bottom: 22px;
}

.catcard .link-arrow {
  margin-top: auto;
}

/* --------------------------------------------------------- product cards */
.pcard {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.pcard:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pcard__head {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--line);
}

.pcard__cas {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--slate-light);
  letter-spacing: 0.04em;
}

.pcard__title {
  margin-top: 6px;
  font-size: 1rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.pcard__title a:hover {
  color: var(--amber-dark);
}

.pcard__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 12px;
}

.pcard__rows {
  padding: 6px 20px 4px;
  flex: 1;
}

.pcard__row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.79rem;
}

.pcard__row:last-child {
  border-bottom: 0;
}

.pcard__row dt {
  color: var(--slate);
}

.pcard__row dd {
  margin: 0;
  text-align: right;
  font-weight: 600;
  color: var(--navy-900);
}

.pcard__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--line);
  background: #fbfcff;
}

.pcard__foot .link-arrow {
  font-size: 0.72rem;
}

.pcard__quote {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--amber-dark);
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

/* --------------------------------------------------------------- toolbar */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-block: 1px solid var(--line);
  margin-bottom: 32px;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.filter {
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--slate);
  letter-spacing: 0.01em;
  transition: all 0.15s ease;
}

.filter:hover {
  border-color: var(--line-strong);
  color: var(--navy-900);
}

.filter.is-active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.filter__n {
  margin-left: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  opacity: 0.6;
}

.search {
  position: relative;
  flex: 1;
  max-width: 320px;
  min-width: 200px;
}

.search input {
  width: 100%;
  height: 42px;
  padding: 0 14px 0 38px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fff;
  font-size: 0.85rem;
  color: var(--ink);
  font-family: inherit;
}

.search input:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(18, 48, 75, 0.08);
}

.search svg {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--slate-light);
  pointer-events: none;
}

.result-count {
  font-size: 0.8rem;
  color: var(--slate);
  font-family: var(--font-mono);
}

.empty {
  display: none;
  padding: 64px 24px;
  text-align: center;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--slate);
}

.empty.is-visible {
  display: block;
}

/* ---------------------------------------------------------------- tables */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.spec-table {
  min-width: 520px;
  font-size: 0.86rem;
}

.spec-table th {
  padding: 12px 18px;
  text-align: left;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
  background: var(--wash-2);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.spec-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.spec-table tr:last-child td {
  border-bottom: 0;
}

.spec-table td:first-child {
  color: var(--slate);
  width: 40%;
}

.spec-table td:last-child {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--navy-900);
}

.spec-table tr:hover td {
  background: #fbfcff;
}

.doc-table td:last-child {
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 400;
  color: var(--ink);
}

/* ------------------------------------------------------------- keyfacts */
.keyfacts {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}

.keyfacts__head {
  padding: 16px 20px;
  background: var(--wash-2);
  border-bottom: 1px solid var(--line);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.keyfacts dl {
  margin: 0;
  padding: 4px 20px 14px;
}

.keyfacts__row {
  display: grid;
  grid-template-columns: 42% 1fr;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.84rem;
}

.keyfacts__row:last-child {
  border-bottom: 0;
}

.keyfacts__row dt {
  color: var(--slate);
}

.keyfacts__row dd {
  margin: 0;
  font-weight: 600;
  color: var(--navy-900);
  word-break: break-word;
}

/* ---------------------------------------------------------------- forms */
.form {
  display: grid;
  gap: 18px;
}

.form--card {
  padding: 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
}

.field label .req {
  color: var(--amber-dark);
  margin-left: 3px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: #fff;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.5;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(18, 48, 75, 0.08);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: #b8382c;
}

.field__error {
  font-size: 0.76rem;
  color: #b8382c;
  display: none;
}

.field__error.is-visible {
  display: block;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form__note {
  font-size: 0.76rem;
  color: var(--slate-light);
  line-height: 1.55;
  margin: 0;
}

.form__note a {
  color: var(--slate);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form__status {
  display: none;
  padding: 14px 16px;
  border-radius: 2px;
  font-size: 0.85rem;
  line-height: 1.5;
}

.form__status.is-visible {
  display: block;
}

.form__status--ok {
  background: #eff8f2;
  border: 1px solid #b9dfc8;
  color: #1f5c3a;
}

.form__status--err {
  background: #fdf1ef;
  border: 1px solid #edc4bd;
  color: #8d3126;
}

/* --------------------------------------------------------------- blocks */
.doclist {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.doclist li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}

.doclist svg {
  flex: none;
  width: 17px;
  height: 17px;
  color: var(--amber);
  margin-top: 3px;
}

.doclist strong {
  display: block;
  color: var(--navy-900);
  font-weight: 600;
}

.doclist span {
  color: var(--slate);
  font-size: 0.84rem;
}

/* process steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 2px solid var(--navy-900);
}

.step {
  position: relative;
  padding: 26px 26px 0 0;
}

.step::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 0;
  width: 12px;
  height: 12px;
  background: #fff;
  border: 2px solid var(--amber);
  border-radius: 50%;
}

.step__n {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber-dark);
  letter-spacing: 0.08em;
}

.step h3 {
  margin: 8px 0 8px;
  font-size: 1rem;
}

.step p {
  font-size: 0.85rem;
  color: var(--slate);
  line-height: 1.55;
  margin: 0;
}

/* cards */
.card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card h3 {
  font-size: 1.02rem;
  margin-bottom: 10px;
}

.card p {
  font-size: 0.88rem;
  color: var(--slate);
  margin: 0;
}

.card--flush {
  padding: 0;
  overflow: hidden;
}

/* markets */
.marketlist {
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.marketlist li {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  align-items: baseline;
}

.marketlist strong {
  color: #fff;
  font-size: 0.98rem;
  font-weight: 600;
}

.marketlist span {
  color: #b0b9d6;
  font-size: 0.87rem;
}

/* FAQ */
.faq {
  border-top: 1px solid var(--line);
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  color: var(--navy-900);
}

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

.faq summary::after {
  content: "+";
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--amber);
  flex: none;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "−";
}

.faq__body {
  padding: 0 0 24px;
  max-width: 78ch;
  font-size: 0.92rem;
  color: var(--slate);
}

.faq__body p:last-child {
  margin-bottom: 0;
}

/* breadcrumb */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0;
  font-size: 0.78rem;
  color: var(--slate-light);
}

.crumbs a:hover {
  color: var(--navy);
}

.crumbs__sep {
  opacity: 0.5;
}

/* page header */
.pagehead {
  position: relative;
  padding: 56px 0 48px;
  background: var(--wash);
  border-bottom: 1px solid var(--line);
}

.pagehead h1 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  letter-spacing: -0.025em;
  margin-bottom: 14px;
  max-width: 22ch;
}

.pagehead p {
  max-width: 62ch;
  color: var(--slate);
  font-size: 1.02rem;
  margin: 0;
}

.pagehead__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

/* product detail */
.pdp {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 56px;
  align-items: start;
  padding-block: 40px 88px;
}

.pdp__side {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: grid;
  gap: 16px;
}

.pdp h1 {
  font-size: clamp(1.7rem, 2.8vw, 2.35rem);
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}

.pdp__syn {
  font-size: 0.85rem;
  color: var(--slate);
  margin-bottom: 20px;
}

.pdp h2 {
  font-size: 1.15rem;
  margin: 44px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.pdp h2:first-of-type {
  margin-top: 36px;
}

.pdp p {
  font-size: 0.94rem;
  color: #323a5c;
  max-width: 72ch;
}

.pdp__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}

.sidecard {
  padding: 22px;
  background: var(--wash);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.sidecard h3 {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 14px;
}

.sidecard p {
  font-size: 0.86rem;
  color: var(--slate);
  margin-bottom: 16px;
}

.sidecard__contact {
  display: grid;
  gap: 8px;
  font-size: 0.85rem;
}

.sidecard__contact a {
  color: var(--navy-900);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--line-strong);
}

.sidecard__contact a:hover {
  text-decoration-color: var(--amber);
}

/* CTA band */
.ctaband {
  position: relative;
  overflow: hidden;
  background: var(--navy-900);
  color: #d5daf0;
  padding-block: 72px;
}

.ctaband::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.09) 1px, transparent 0);
  background-size: 22px 22px;
  opacity: 0.55;
  pointer-events: none;
}

.ctaband__inner {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.ctaband h2 {
  color: #fff;
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  margin-bottom: 10px;
  max-width: 24ch;
}

.ctaband p {
  margin: 0;
  color: #b0b9d6;
  font-size: 0.95rem;
  max-width: 46ch;
}

.ctaband__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* --------------------------------------------------------------- footer */
.footer {
  background: var(--navy-900);
  color: #b0b9d6;
  padding-top: 64px;
  font-size: 0.87rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 52px;
}

.footer .logo__name {
  color: #fff;
}

.footer .logo__sub {
  color: #7f89a6;
}

.footer__about {
  margin-top: 20px;
  max-width: 34ch;
  font-size: 0.84rem;
  line-height: 1.65;
  color: #94a0bd;
}

.footer__title {
  margin: 0 0 16px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #b9c1e6;
}

.footer__links {
  display: grid;
  gap: 9px;
}

.footer__links a:hover {
  color: #fff;
}

.footer__contact {
  display: grid;
  gap: 10px;
  line-height: 1.5;
}

.footer__contact a:hover {
  color: #fff;
}

.footer__contact .mono {
  color: #cbd8e2;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  font-size: 0.76rem;
  color: #7f89a6;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer__legal a:hover {
  color: #fff;
}

/* ------------------------------------------------------------ utilities */
.reveal {
  opacity: 1;
}

/* Scroll-in animation removed: content must never depend on JS/observer
   callbacks to become visible (some embedded viewers never fire them, which
   left whole bands of the page looking blank). */
.reveal,
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  top: -60px;
  left: 16px;
  z-index: 100;
  padding: 12px 18px;
  background: var(--navy-900);
  color: #fff;
  font-size: 0.82rem;
  border-radius: 2px;
  transition: top 0.15s ease;
}

.skip:focus {
  top: 12px;
}

/* ---------------------------------------------------------- responsive */
@media (max-width: 1100px) {
  .hero__inner {
    gap: 44px;
    padding-block: 64px;
  }

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

  .pdp {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 36px;
  }

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

  .stat:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }

  .stat:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 960px) {
  :root {
    --gutter: 24px;
  }

  .nav,
  .header__cta .btn {
    display: none;
  }

  .burger {
    display: inline-flex;
    margin-left: auto;
  }

  .split,
  .hero__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  .hero__inner {
    padding-block: 52px 56px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 0;
  }

  .pdp {
    grid-template-columns: minmax(0, 1fr);
  }

  .pdp__side {
    position: static;
    order: -1;
  }

  .section {
    padding-block: 64px;
  }

  .marketlist li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .ctaband__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15.5px;
  }

  .utility__list--right {
    display: none;
  }

  .hero h1 {
    font-size: 1.95rem;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .form__row,
  .footer__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 26px;
  }

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

  .stat {
    padding: 20px 16px;
  }

  .stat__value {
    font-size: 1.6rem;
  }

  .section {
    padding-block: 52px;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .search {
    max-width: none;
  }

  .speccard__row dd {
    font-size: 0.74rem;
  }

  .form--card {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   Additions — numbered checks, article cards, long-form prose, certificates
   ========================================================================== */

/* numbered qualifier list */
.checks {
  counter-reset: check;
  border-top: 1px solid var(--line);
}

.checks li {
  counter-increment: check;
  position: relative;
  padding: 22px 0 22px 48px;
  border-bottom: 1px solid var(--line);
}

.checks li::before {
  content: "0" counter(check);
  position: absolute;
  left: 0;
  top: 24px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber-dark);
  letter-spacing: 0.04em;
}

.checks strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--navy-900);
  line-height: 1.4;
}

.checks span {
  display: block;
  font-size: 0.875rem;
  color: var(--slate);
  line-height: 1.6;
}

/* certificate chips */
.certs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cert {
  padding: 9px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--navy-800);
}

/* article cards */
.artcard {
  display: flex;
  flex-direction: column;
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.artcard:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.artcard__tag {
  margin-bottom: 12px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--amber-dark);
}

.artcard h3 {
  font-size: 1.02rem;
  line-height: 1.4;
  margin-bottom: 10px;
}

.artcard h3 a:hover {
  color: var(--amber-dark);
}

.artcard p {
  font-size: 0.86rem;
  color: var(--slate);
  margin-bottom: 18px;
}

.artcard__meta {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--slate-light);
  letter-spacing: 0.03em;
}

/* long-form prose */
.prose {
  max-width: 72ch;
}

.prose > p:first-of-type {
  font-size: 1.05rem;
  color: var(--ink);
}

.prose h2 {
  font-size: 1.24rem;
  letter-spacing: -0.02em;
  margin: 42px 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.prose h3 {
  font-size: 1.04rem;
  margin: 28px 0 10px;
}

.prose p {
  font-size: 0.955rem;
  line-height: 1.72;
  color: #323a5c;
  margin-bottom: 1.15em;
}

.prose ul,
.prose ol {
  margin: 0 0 1.3em;
  padding-left: 4px;
}

.prose ul li,
.prose ol li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 0.94rem;
  line-height: 1.68;
  color: #323a5c;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.68em;
  width: 5px;
  height: 5px;
  background: var(--amber);
}

.prose ol {
  counter-reset: p;
}

.prose ol li {
  counter-increment: p;
}

.prose ol li::before {
  content: counter(p) ".";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--amber-dark);
}

.prose strong {
  color: var(--navy-900);
  font-weight: 600;
}

.prose a {
  color: var(--navy-900);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line-strong);
}

.prose a:hover {
  text-decoration-color: var(--amber);
}

.callout {
  margin: 30px 0;
  padding: 20px 24px;
  background: var(--amber-wash);
  border-left: 3px solid var(--amber);
  font-size: 0.9rem;
  line-height: 1.65;
  color: #232b5c;
}

.callout strong {
  color: #3d2f18;
}

@media (max-width: 960px) {
  .checks li {
    padding-left: 40px;
  }
}

/* ==========================================================================
   Language switcher
   ========================================================================== */
.langsw {
  display: flex;
  align-items: center;
  gap: 1px;
}

.langsw__a {
  display: inline-block;
  padding: 2px 6px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  color: #94a0bd;
  border-bottom: 1px solid transparent;
}

.langsw__a:hover {
  color: #fff;
}

.langsw__a.is-current {
  color: #93a2ea;
  border-bottom-color: var(--amber);
}

.langsw--drawer {
  flex-wrap: wrap;
  gap: 6px;
}

.langsw--drawer .langsw__a {
  padding: 7px 12px;
  font-size: 0.82rem;
  color: var(--navy-800);
  border: 1px solid var(--line);
  border-radius: 2px;
  letter-spacing: 0.05em;
}

.langsw--drawer .langsw__a.is-current {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.footer__legal .langsw__a {
  font-size: 0.72rem;
}

/* ==========================================================================
   Product library — sidebar tree, A–Z index, dense table, pack chips
   ========================================================================== */

.pagehead--lib h1 {
  max-width: none;
}

.libstats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.libstats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.libstats strong {
  font-size: 1.28rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--navy-900);
  font-variant-numeric: tabular-nums;
}

.libstats span {
  font-size: 0.76rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--slate-light);
}

.lib {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.lib__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate-light);
}

.lib__side {
  position: sticky;
  top: calc(var(--header-h) + 24px);
}

.tree {
  border-top: 1px solid var(--line-strong);
}

.tree__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 11px 0 11px 10px;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  background: none;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy-800);
  text-align: left;
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.tree__item span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--slate-light);
}

.tree__item:hover {
  color: var(--amber-dark);
  background: var(--wash);
}

.tree__item.is-active {
  border-left-color: var(--amber);
  color: var(--ink);
  background: var(--wash);
}

.tree__kids {
  padding: 2px 0 8px;
  border-bottom: 1px solid var(--line);
}

.tree__kid {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  padding: 7px 0 7px 22px;
  border: 0;
  background: none;
  font: inherit;
  font-size: 0.8rem;
  color: var(--slate);
  text-align: left;
  cursor: pointer;
  position: relative;
}

.tree__kid::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 0.95em;
  width: 3px;
  height: 3px;
  background: var(--line-strong);
}

.tree__kid span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--slate-light);
}

.tree__kid:hover,
.tree__kid.is-active {
  color: var(--amber-dark);
}

.tree__kid.is-active::before {
  background: var(--amber);
}

.lib__note {
  margin-top: 24px;
  padding: 18px 18px 20px;
  background: var(--wash);
  border-left: 2px solid var(--amber);
}

.lib__note strong {
  display: block;
  font-size: 0.86rem;
  color: var(--navy-900);
  margin-bottom: 6px;
}

.lib__note p {
  margin: 0 0 12px;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--slate);
}

.lib__note .link-arrow {
  font-size: 0.78rem;
}

.lib__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 16px;
}

.lib__bar .search {
  flex: 1 1 320px;
  max-width: 460px;
}

.lib__bar .result-count {
  margin: 0;
  white-space: nowrap;
}

.alpha {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
  padding: 10px 0 18px;
  border-top: 1px solid var(--line);
}

.alpha__lab {
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--slate-light);
}

.alpha__b {
  min-width: 24px;
  padding: 3px 5px;
  border: 1px solid transparent;
  border-radius: 2px;
  background: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--slate);
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.alpha__b:hover {
  color: var(--navy-900);
  border-color: var(--line-strong);
}

.alpha__b.is-active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.alpha__b--all {
  margin-left: 6px;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.lib__table {
  margin: 0;
  border-top: 2px solid var(--navy-900);
}

.libtable {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.libtable thead th {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-strong);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--slate-light);
  text-align: left;
  white-space: nowrap;
}

.libtable tbody tr {
  border-bottom: 1px solid var(--line);
  transition: background 0.14s ease;
}

.libtable tbody tr:hover {
  background: var(--wash);
}

.libtable td {
  padding: 12px 14px;
  vertical-align: middle;
  color: var(--slate);
}

.libtable__name a {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy-900);
  line-height: 1.35;
}

.libtable__name a:hover {
  color: var(--amber-dark);
}

.libtable__name span {
  display: block;
  margin-top: 2px;
  font-size: 0.72rem;
  color: var(--slate-light);
}

.libtable td.mono {
  font-family: var(--font-mono);
  font-size: 0.79rem;
  color: var(--ink);
  white-space: nowrap;
}

.libtable__num,
.libtable__code {
  color: var(--slate) !important;
}

.libtable__act {
  text-align: right;
  width: 1%;
  white-space: nowrap;
}

.tblbtn {
  display: inline-block;
  padding: 5px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--navy-800);
  background: #fff;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.tblbtn:hover {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.lib__foot {
  margin-top: 18px;
  max-width: 68ch;
}

.identity-table td:first-child {
  width: 34%;
  color: var(--slate);
}

.packs {
  margin-top: 22px;
}

.packs__lab {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate-light);
}

.packs__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pack {
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: #fff;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--navy-800);
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.pack:hover {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

@media (max-width: 1000px) {
  .lib {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .lib__side {
    position: static;
  }

  .tree {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 0 24px;
    border-top: 0;
  }

  .tree__item:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .libstats {
    gap: 12px 28px;
  }

  .libtable thead th:nth-child(3),
  .libtable thead th:nth-child(4),
  .libtable thead th:nth-child(5),
  .libtable td:nth-child(3),
  .libtable td:nth-child(4),
  .libtable td:nth-child(5) {
    display: none;
  }

  .libtable td {
    padding: 11px 8px;
  }

  .libtable td:first-child {
    padding-left: 0;
  }

  .alpha__b {
    min-width: 21px;
  }
}

/* ==========================================================================
   CAS registry landing pages
   ========================================================================== */

.pagehead--cas h1 {
  max-width: none;
}

.casnum {
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 5.4vw, 3.2rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--navy-900);
  margin: 10px 0 6px;
}

.casname {
  font-size: 1.16rem;
  font-weight: 600;
  color: var(--navy-800);
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}

.caslead {
  max-width: 66ch;
  margin: 20px 0 0;
  font-size: 1rem;
  line-height: 1.68;
  color: #323a5c;
}

.chip--ok {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #eef4ee;
  border-color: #cfe0cf;
  color: #2f5a37;
}

.chip--ok svg {
  width: 13px;
  height: 13px;
  flex: none;
  color: #3f7a4b;
}

/* four-cell fact strip */
.casfacts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--navy-900);
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
}

.casfact {
  padding: 16px 18px 18px;
  border-left: 1px solid var(--line);
}

.casfact:first-child {
  border-left: 0;
  padding-left: 0;
}

.casfact span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-light);
  margin-bottom: 7px;
}

.casfact strong {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy-900);
  line-height: 1.35;
}

.casnote {
  margin: 0 0 34px;
  padding: 18px 22px;
  background: var(--amber-wash);
  border-left: 3px solid var(--amber);
  font-size: 0.89rem;
  line-height: 1.62;
  color: #232b5c;
}

/* related CAS list in the sidebar */
.casrel {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line-strong);
}

.casrel__h {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy-800);
  margin-bottom: 8px;
}

.casrel__ul {
  margin-top: 14px;
  border-top: 1px solid var(--line);
}

.casrel__ul li {
  border-bottom: 1px solid var(--line);
}

.casrel__ul a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 0;
  font-size: 0.84rem;
  color: var(--navy-800);
  line-height: 1.35;
}

.casrel__ul a .mono {
  font-size: 0.72rem;
  color: var(--slate-light);
}

.casrel__ul a:hover {
  color: var(--amber-dark);
}

.casrel__ul a:hover .mono {
  color: var(--amber-dark);
}

@media (max-width: 860px) {
  .casfacts {
    grid-template-columns: repeat(2, 1fr);
  }

  .casfact:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }

  .casfact:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }
}

/* ==========================================================================
   Illustrative photography — figures, bands, card media
   ========================================================================== */
.media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--wash);
  overflow: hidden;
}

.media img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.media__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: #fff;
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--slate);
}

.media--cover img {
  aspect-ratio: 21 / 9;
}

.prose .media--cover {
  margin-bottom: 32px;
}

/* image pairs on quality / about */
.imgband {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* three-up gallery on the home page */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* line thumbnails inside cards */
.catcard__media,
.catintro__media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
  aspect-ratio: 16 / 9;
  background: var(--wash-2);
}

.catcard__media img,
.catintro__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* the small line icon now sits under the photo */
.catcard__icon {
  display: block;
  color: var(--navy);
  margin-bottom: 22px;
}

.catcard__icon svg {
  width: 34px;
  height: 34px;
}

/* article covers */
.artcard__media {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 18px;
  aspect-ratio: 16 / 9;
  background: var(--wash-2);
}

.artcard__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.artcard:hover .artcard__media img {
  transform: scale(1.03);
}

/* product-page visual in the side column */
.pdp__visual {
  margin-bottom: 20px;
}

@media (max-width: 960px) {
  .imgband {
    grid-template-columns: 1fr;
  }
  .gallery {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .gallery {
    grid-template-columns: 1fr;
  }
}

/* client wordmark logo */
.logo__img {
  height: 40px;
  width: auto;
  flex: none;
  display: block;
}

.footer .logo__img {
  height: 34px;
}


/* ---------------------------------------------------------------------------
   CTA on dark bands: the primary button inverts to paper white
   --------------------------------------------------------------------------- */
.ctaband .btn--amber,
.section--navy .btn--amber,
.footer .btn--amber {
  background: #fff;
  color: var(--navy-900);
}

.ctaband .btn--amber:hover,
.section--navy .btn--amber:hover,
.footer .btn--amber:hover {
  background: #e6eafa;
  color: var(--navy-900);
}