/* LUMEN landing page. Sovereign Canadian deeptech, embassy-grade. */

/* =========================================================
   GLOBAL CHROME: language + nav
   ========================================================= */

.chrome {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: var(--hair);
}
.chrome__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  height: 64px;
}
.brand {
  display: inline-flex; align-items: baseline; gap: 10px;
}
.brand__mark {
  font-weight: 600; font-size: 17px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-900);
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-500);
  text-transform: uppercase;
}
.nav {
  display: flex; gap: 28px; justify-content: center;
  font-size: 14px;
  color: var(--ink-700);
}
.nav a { transition: color var(--t-fast) var(--ease-out); }
.nav a:hover { color: var(--ink-900); }
.nav a[aria-current="page"] { color: var(--ink-900); font-weight: 500; }

.lang-switch {
  display: inline-flex;
  border: var(--hair-strong);
  font-size: 12.5px;
  font-family: var(--font-sans);
}
.lang-switch button {
  padding: 7px 12px;
  color: var(--ink-500);
  border-right: var(--hair-strong);
  letter-spacing: 0.02em;
  transition: background var(--t-fast), color var(--t-fast);
}
.lang-switch button:last-child { border-right: 0; }
.lang-switch button[aria-pressed="true"] {
  background: var(--ink-900); color: var(--paper);
}
.lang-switch button:hover:not([aria-pressed="true"]) {
  background: var(--ink-100); color: var(--ink-900);
}

/* Document header strip: country, jurisdiction, status */
.docstrip {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px var(--gutter);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-500);
  text-transform: uppercase;
  background: var(--ink-050);
  border-bottom: var(--hair);
}
.docstrip__group { display: flex; gap: 24px; }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  padding-block: clamp(64px, 8vw, 128px) clamp(80px, 10vw, 160px);
  border-bottom: var(--hair);
  overflow: hidden;
}

.hero__meta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  margin-bottom: clamp(40px, 5vw, 64px);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.10em;
  color: var(--ink-500);
  text-transform: uppercase;
}
.hero__meta-doc { display: flex; gap: 28px; flex-wrap: wrap; }
.hero__meta-doc span:first-child { color: var(--ink-900); }

.hero__title {
  font-size: var(--t-display);
  font-weight: 250;
  line-height: 0.94;
  letter-spacing: -0.028em;
  color: var(--ink-900);
  max-width: 18ch;
  margin: 0;
}
.hero__title .reg {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
}
.hero__sub {
  margin-top: 28px;
  font-size: var(--t-lead);
  line-height: 1.4;
  font-weight: 350;
  color: var(--ink-700);
  max-width: 38ch;
}

.hero__row {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: end;
}
@media (max-width: 900px) {
  .hero__row { grid-template-columns: 1fr; }
}

.hero__cta {
  display: flex; gap: 12px; flex-wrap: wrap;
  margin-top: 40px;
}

.hero__trust {
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-500);
  letter-spacing: 0.04em;
  max-width: 56ch;
  line-height: 1.6;
}

/* Hero stage: abstract animated ICU corridor, dawn-lit */
.hero__stage {
  position: relative;
  aspect-ratio: 4 / 3;
  background: linear-gradient(
    180deg,
    #0a0d12 0%,
    #14181f 38%,
    #2b2418 78%,
    #6b3a14 100%
  );
  overflow: hidden;
  border: 1px solid var(--ink-200);
}
.hero__stage::before {
  /* Dawn horizon line */
  content: "";
  position: absolute; left: 0; right: 0; top: 78%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(214,135,72,0.7), transparent);
}
.hero__stage svg { width: 100%; height: 100%; display: block; }

.hero__stage-caption {
  position: absolute;
  inset-inline-start: 16px;
  inset-block-end: 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.10em;
  color: rgba(247, 228, 207, 0.72);
  text-transform: uppercase;
  z-index: 2;
}

/* Storyboard strip */
.storyboard {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: var(--hair);
}
.storyboard__cell {
  aspect-ratio: 16 / 10;
  position: relative;
  border-inline-end: var(--hair);
  background: var(--ink-050);
  overflow: hidden;
}
.storyboard__cell:last-child { border-inline-end: 0; }
.storyboard__cell svg { width: 100%; height: 100%; }
.storyboard__cell figcaption {
  position: absolute;
  inset-inline-start: 10px;
  inset-block-end: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-500);
  text-transform: uppercase;
}
@media (max-width: 720px) {
  .storyboard { grid-template-columns: repeat(2, 1fr); }
  .storyboard__cell:nth-child(2) { border-inline-end: 0; }
  .storyboard__cell:nth-child(1), .storyboard__cell:nth-child(2) { border-bottom: var(--hair); }
}

/* =========================================================
   SECTION HEADERS
   ========================================================= */
.sechead {
  display: grid;
  grid-template-columns: 12ch 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: baseline;
  border-top: 1px solid var(--ink-900);
  padding-top: 28px;
  margin-bottom: clamp(48px, 6vw, 80px);
}
@media (max-width: 720px) { .sechead { grid-template-columns: 1fr; gap: 12px; } }
.sechead__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-500);
  text-transform: uppercase;
  padding-top: 4px;
}
.sechead__title {
  font-size: var(--t-h2);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.018em;
  margin: 0;
  max-width: 22ch;
}
.sechead__lede {
  grid-column: 2 / -1;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(17px, 1.4vw, 21px);
  line-height: 1.55;
  color: var(--ink-700);
  max-width: 60ch;
  margin: 18px 0 0;
  text-wrap: pretty;
}
@media (max-width: 720px) { .sechead__lede { grid-column: 1 / -1; } }

/* =========================================================
   FIVE DIFFERENTIATORS
   ========================================================= */
.diff {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: var(--hair-strong);
  border-bottom: var(--hair-strong);
}
@media (max-width: 1100px) { .diff { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .diff { grid-template-columns: 1fr; } }

.diff__cell {
  padding: 32px 28px 36px;
  border-inline-end: var(--hair);
  display: flex; flex-direction: column;
  min-height: 380px;
}
.diff__cell:last-child { border-inline-end: 0; }
@media (max-width: 1100px) {
  .diff__cell:nth-child(2n) { border-inline-end: 0; }
  .diff__cell { border-bottom: var(--hair); }
}

.diff__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-500);
}
.diff__title {
  margin: 16px 0 12px;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.012em;
  max-width: 14ch;
}
.diff__body {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-700);
  max-width: 28ch;
}
.diff__art {
  margin-top: auto;
  padding-top: 28px;
  height: 110px;
  display: flex; align-items: flex-end;
}
.diff__art svg { width: 100%; height: 100%; }

/* =========================================================
   COUNSEL
   ========================================================= */
.counsel-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
}
@media (max-width: 980px) { .counsel-wrap { grid-template-columns: 1fr; } }

.counsel-prose p {
  font-size: 17.5px;
  line-height: 1.55;
  color: var(--ink-800);
  max-width: 56ch;
  margin: 0 0 18px;
}
.counsel-prose p.lead-q {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  font-style: italic;
  color: var(--ink-900);
  line-height: 1.4;
  margin-bottom: 28px;
}
.counsel-caption {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-500);
  letter-spacing: 0.04em;
  line-height: 1.6;
  max-width: 50ch;
}

/* Counsel arc: five panels around a synthesis */
.counsel-stage {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--paper-pure);
  border: var(--hair-strong);
  padding: 24px;
  font-family: var(--font-sans);
}
.counsel-stage__case {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.10em;
  color: var(--ink-500);
  text-transform: uppercase;
  border-bottom: var(--hair);
  padding-bottom: 10px;
}
.counsel-stage__case strong { color: var(--ink-900); font-weight: 600; }

.counsel-arc {
  position: absolute; inset: 60px 24px 84px 24px;
}
.counsel-arc svg { width: 100%; height: 100%; }
.counsel-sig {
  position: absolute;
  inset-inline: 24px;
  inset-block-end: 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  border-top: 1px solid var(--ink-900);
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-500);
  text-transform: uppercase;
}
.counsel-sig__line {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--dawn-600);
  text-transform: none;
  letter-spacing: 0;
}

/* =========================================================
   BEDSIDE
   ========================================================= */
.bedside-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: clamp(32px, 4vw, 64px);
  align-items: start;
}
@media (max-width: 980px) { .bedside-wrap { grid-template-columns: 1fr; } }

.bedside-panel {
  border: var(--hair-strong);
  background: var(--paper-pure);
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 480px;
  position: relative;
}
.bedside-col {
  padding: 22px 24px;
  display: flex; flex-direction: column;
  border-inline-end: var(--hair);
}
.bedside-col:last-child { border-inline-end: 0; }
.bedside-col[data-script="ar"] { font-family: var(--font-arabic); direction: rtl; }
.bedside-col[data-script="fr"], .bedside-col[data-script="en"] { direction: ltr; }
.bedside-col__head {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  color: var(--ink-500);
  text-transform: uppercase;
  border-bottom: var(--hair);
  padding-bottom: 10px;
}
.bedside-col__head strong { color: var(--ink-900); font-weight: 600; }
.bedside-col__transcript {
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-800);
}
.bedside-col__transcript .codeswitch {
  background: var(--dawn-100);
  padding: 0 4px;
  color: var(--dawn-700);
}
.bedside-col__soap {
  margin-top: auto;
  padding-top: 18px;
  border-top: var(--hair);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-700);
}
.bedside-col__soap dt { color: var(--ink-900); font-weight: 600; display: inline; }
.bedside-col__soap dd { display: inline; margin: 0; }

.bedside-controls {
  position: absolute;
  inset-block-end: -1px;
  inset-inline: -1px;
  display: flex; justify-content: space-between;
  border-top: 1px solid var(--ink-900);
  background: var(--paper-pure);
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  color: var(--ink-500);
  text-transform: uppercase;
  align-items: center;
}
.bedside-mic {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--ink-900);
}
.bedside-mic .dot {
  width: 8px; height: 8px; border-radius: 999px;
  background: var(--critical);
  box-shadow: 0 0 0 4px rgba(168,50,30,0.16);
  animation: pulse 1.6s var(--ease-in-out) infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(168,50,30,0.06); }
  50% { box-shadow: 0 0 0 8px rgba(168,50,30,0.24); }
}

/* =========================================================
   SOVEREIGN ARCHITECTURE
   ========================================================= */
.sov-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
}
@media (max-width: 980px) { .sov-wrap { grid-template-columns: 1fr; } }

.sov-prose p {
  font-size: 16.5px;
  line-height: 1.6;
  color: var(--ink-700);
  max-width: 52ch;
  margin: 0 0 18px;
}
.sov-prose p:first-child {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--ink-900);
  line-height: 1.45;
  margin-bottom: 24px;
}

.sov-diagram {
  border: var(--hair-strong);
  background: var(--paper-pure);
  padding: 28px;
  position: relative;
}
.sov-diagram__head {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  color: var(--ink-500);
  text-transform: uppercase;
  border-bottom: var(--hair);
  padding-bottom: 10px;
  margin-bottom: 20px;
}
.sov-diagram svg { width: 100%; height: auto; aspect-ratio: 5 / 4; }

.patent-table {
  margin-top: 24px;
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}
.patent-table th, .patent-table td {
  text-align: start;
  padding: 10px 12px 10px 0;
  border-bottom: var(--hair);
  vertical-align: top;
}
.patent-table th {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.10em;
  color: var(--ink-500);
  text-transform: uppercase;
}
.patent-table td.mono { font-family: var(--font-mono); color: var(--ink-900); }
.patent-table tr:last-child td { border-bottom: 0; }

/* =========================================================
   FOUNDING ADVISOR (placeholder)
   ========================================================= */
.advisor {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.2fr);
  gap: clamp(32px, 4vw, 64px);
  align-items: stretch;
  border: var(--hair-strong);
  background: var(--paper-pure);
}
@media (max-width: 800px) { .advisor { grid-template-columns: 1fr; } }
.advisor__plate {
  background: var(--ink-050);
  border-inline-end: var(--hair);
  aspect-ratio: 4/5;
  position: relative;
  display: flex; align-items: flex-end;
  padding: 20px 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  color: var(--ink-500);
  text-transform: uppercase;
}
@media (max-width: 800px) { .advisor__plate { border-inline-end: 0; border-bottom: var(--hair); aspect-ratio: 16/9; } }
.advisor__plate::before {
  content: "";
  position: absolute; inset: 14px;
  border: 1px dashed var(--ink-300);
}
.advisor__plate-label {
  position: relative;
  z-index: 2;
}
.advisor__body {
  padding: 28px 32px 32px;
}
.advisor__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-500);
  text-transform: uppercase;
}
.advisor__quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 400;
  color: var(--ink-900);
  line-height: 1.4;
  margin: 16px 0 24px;
  max-width: 38ch;
}
.advisor__caption {
  font-size: 14.5px;
  color: var(--ink-700);
  line-height: 1.55;
  max-width: 50ch;
}
.advisor__status {
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  color: var(--dawn-600);
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 8px;
}
.advisor__status::before {
  content: ""; width: 6px; height: 6px; border-radius: 999px;
  background: var(--dawn-500);
}

/* =========================================================
   TEAM AND PATENTS (stat row)
   ========================================================= */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink-900);
  border-bottom: var(--hair-strong);
}
@media (max-width: 800px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }

.stat {
  padding: 28px 24px 32px;
  border-inline-end: var(--hair);
}
.stat:last-child { border-inline-end: 0; }
@media (max-width: 800px) {
  .stat:nth-child(2n) { border-inline-end: 0; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: var(--hair); }
}
.stat__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink-900);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat__label {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  color: var(--ink-500);
  text-transform: uppercase;
  line-height: 1.5;
}

.team-prose {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: clamp(40px, 5vw, 80px);
  margin-top: clamp(32px, 4vw, 56px);
}
@media (max-width: 800px) { .team-prose { grid-template-columns: 1fr; } }
.team-prose p { font-size: 16px; line-height: 1.6; color: var(--ink-700); max-width: 56ch; margin: 0 0 16px; }

/* =========================================================
   PROCUREMENT FORM
   ========================================================= */
.procurement {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
}
@media (max-width: 900px) { .procurement { grid-template-columns: 1fr; } }

.proc-prose p { font-size: 16.5px; line-height: 1.6; color: var(--ink-700); max-width: 50ch; margin: 0 0 16px; }
.proc-prose p:first-child {
  font-family: var(--font-serif);
  font-size: 20px;
  font-style: italic;
  color: var(--ink-900);
  line-height: 1.45;
}

.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: var(--hair-strong);
  background: var(--paper-pure);
}
.form__row {
  border-inline-end: var(--hair);
  border-bottom: var(--hair);
  padding: 14px 16px 12px;
  display: flex; flex-direction: column;
  gap: 6px;
}
.form__row:nth-child(2n) { border-inline-end: 0; }
.form__row.full { grid-column: 1 / -1; border-inline-end: 0; }
.form__row label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--ink-500);
  text-transform: uppercase;
}
.form__row input, .form__row select, .form__row textarea {
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 15px;
  color: var(--ink-900);
  padding: 4px 0 6px;
  outline: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast);
}
.form__row input:focus, .form__row select:focus, .form__row textarea:focus {
  border-bottom-color: var(--ink-900);
}
.form__row textarea { resize: vertical; min-height: 60px; }
.form__submit-row {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  background: var(--ink-050);
  border-top: 1px solid var(--ink-900);
}
.form__privacy {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-500);
  letter-spacing: 0.04em;
  max-width: 42ch;
  line-height: 1.5;
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  border-top: 1px solid var(--ink-900);
  padding-block: clamp(48px, 6vw, 72px) 24px;
  background: var(--ink-900);
  color: var(--ink-300);
}
.footer .shell { color: inherit; }
.footer__cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 800px) { .footer__cols { grid-template-columns: 1fr 1fr; } }
.footer h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-400);
  font-weight: 500;
  margin: 0 0 16px;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 10px; }
.footer a { color: var(--ink-200); }
.footer a:hover { color: var(--paper); }

.footer__brand {
  font-size: 28px; font-weight: 400; letter-spacing: 0.08em;
  color: var(--paper);
}
.footer__brand-sub {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-400);
  text-transform: uppercase;
  max-width: 32ch;
  line-height: 1.6;
}

.footer__bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--ink-700);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-400);
  text-transform: uppercase;
  flex-wrap: wrap;
  gap: 16px;
}

/* =========================================================
   TWEAKS PANEL: Commander review tools.
   ========================================================= */
.tweaks {
  position: fixed;
  bottom: 24px; inset-inline-end: 24px;
  z-index: 80;
  width: 280px;
  background: var(--paper-pure);
  border: 1px solid var(--ink-900);
  font-size: 12.5px;
  display: none;
}
.tweaks[data-open="true"] { display: block; }
.tweaks__head {
  padding: 10px 14px;
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: flex; justify-content: space-between; align-items: center;
}
.tweaks__body { padding: 12px 14px; display: grid; gap: 10px; }
.tweaks__row { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; }
.tweaks__row label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.10em;
  color: var(--ink-500);
  text-transform: uppercase;
}
.tweaks__row select, .tweaks__row button {
  font: inherit;
  font-size: 11.5px;
  border: 1px solid var(--ink-300);
  padding: 4px 8px;
  background: var(--paper);
  color: var(--ink-900);
}
.tweaks__close { background: transparent; color: var(--paper); border: 0; cursor: pointer; }

/* RTL specific overrides for hero meta and bedside */
[dir="rtl"] .hero__meta { grid-template-columns: auto 1fr; }
[dir="rtl"] .sechead { grid-template-columns: 12ch 1fr; }

/* =========================================================
   MOBILE / iOS NAV CHROME
   Stack rows under 900px, allow nav to scroll horizontally,
   honor the iOS safe-area inset on the right edge.
   ========================================================= */
@media (max-width: 900px) {
  .chrome {
    /* iOS Safari: keep nav usable when status bar / notch is present */
    padding-inline: env(safe-area-inset-left, 0) env(safe-area-inset-right, 0);
  }
  .chrome__inner {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand lang"
      "nav   nav";
    align-items: center;
    height: auto;
    gap: 10px 16px;
    padding-block: 10px;
  }
  .brand { grid-area: brand; }
  .lang-switch { grid-area: lang; justify-self: end; }
  .nav {
    grid-area: nav;
    justify-content: flex-start;
    gap: 22px;
    width: 100%;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-block: 4px;
    /* fade the right edge so users see there's more to scroll to */
    -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 24px), transparent 100%);
            mask-image: linear-gradient(to right, #000 calc(100% - 24px), transparent 100%);
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav a {
    flex: 0 0 auto;
    white-space: nowrap;
    font-size: 13.5px;
    /* enlarge tap target without changing visual weight */
    padding-block: 6px;
  }
  /* RTL: fade left edge instead of right */
  [dir="rtl"] .nav {
    -webkit-mask-image: linear-gradient(to left, #000 calc(100% - 24px), transparent 100%);
            mask-image: linear-gradient(to left, #000 calc(100% - 24px), transparent 100%);
  }
}
@media (max-width: 480px) {
  .chrome__inner { gap: 8px 12px; padding-block: 8px; }
  .brand__mark { font-size: 15px; letter-spacing: 0.16em; }
  .lang-switch { font-size: 11.5px; }
  .lang-switch button { padding: 6px 9px; }
  .nav { gap: 18px; }
  .nav a { font-size: 13px; }
  .docstrip { padding: 5px 12px; font-size: 10px; gap: 8px; }
  .docstrip__group { gap: 12px; flex-wrap: wrap; }
}