/*
 * Tillio Lite — pilot release hub
 * Layout + components. Direction-aware spacing uses logical properties only
 * (margin-inline-*, padding-inline, text-align: start/end, border-inline-*).
 * [dir='rtl'] overrides are reserved for directional glyphs.
 */

/* ═══ Reset ══════════════════════════════════════════════════════════════ */

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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-block-start: calc(var(--nav-h) + 1rem);
}

body {
  min-block-size: 100svh;
  background: var(--white);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-inline-size: 100%;
  block-size: auto;
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
}

:where(h1, h2, h3, h4) {
  text-wrap: balance;
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
}

p {
  text-wrap: pretty;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ═══ Focus ══════════════════════════════════════════════════════════════ */

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

.on-navy :focus-visible,
.site-header :focus-visible {
  outline-color: var(--cyan);
}

.skip-link {
  position: absolute;
  inset-block-start: 0.5rem;
  inset-inline-start: 0.5rem;
  z-index: 100;
  padding: 0.625rem 1rem;
  border-radius: var(--r-btn);
  background: var(--white);
  color: var(--navy);
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  box-shadow: var(--shadow-lg);
  transform: translateY(-200%);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

/* ═══ Primitives ═════════════════════════════════════════════════════════ */

.wrap {
  inline-size: 100%;
  max-inline-size: var(--page);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  direction: ltr;
  unicode-bidi: isolate;
}

[dir='rtl'] .mono {
  text-align: right;
}

.num {
  font-variant-numeric: tabular-nums;
}

.sr-only {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

[hidden] {
  display: none !important;
}

/* ── Label: one named kicker, used only for the on-navy meta line ──────── */
.label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

/* ── Pills — status only ──────────────────────────────────────────────── */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  padding: 0.3125rem 0.75rem;
  border-radius: var(--r-pill);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  white-space: nowrap;
}

.pill::before {
  content: '';
  inline-size: 6px;
  block-size: 6px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

.pill--current {
  background: rgba(21, 231, 170, 0.14);
  color: var(--mint);
  box-shadow: inset 0 0 0 1px rgba(21, 231, 170, 0.32);
}

.pill--required {
  background: var(--amber-surface);
  color: var(--amber-ink);
}

.pill--mint {
  background: var(--mint-surface);
  color: var(--mint-ink);
}

.pill--quiet {
  background: var(--surface-2);
  color: var(--blue-ink);
}

.pill--no-dot::before {
  display: none;
}

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.8125rem 1.375rem;
  border: 0;
  border-radius: var(--r-btn);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.btn:disabled,
.btn[aria-disabled='true'] {
  cursor: not-allowed;
  opacity: 0.55;
  box-shadow: none;
}

.btn--primary {
  background: var(--blue);
  color: var(--white);
  box-shadow: var(--shadow-blue);
}

.btn--primary:hover:not(:disabled) {
  background: #0a55e0;
  box-shadow: var(--shadow-blue-hover);
  transform: translateY(-1px);
}

.btn--primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn--ghost-navy {
  background: var(--navy-raised-2);
  color: var(--on-navy);
  box-shadow: inset 0 0 0 1px var(--navy-hairline);
}

.btn--ghost-navy:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn--block {
  inline-size: 100%;
}

.btn__icon {
  flex: none;
  inline-size: 1.125rem;
  block-size: 1.125rem;
}

/* ═══ Header ═════════════════════════════════════════════════════════════ */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 50;
  background: var(--navy);
  border-block-end: 1px solid var(--navy-hairline);
}

.site-header__inner {
  block-size: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-inline-size: 0;
  text-decoration: none;
}

/* The icon carries navy in its own artwork, so it needs a light tile to sit on
   rather than being flattened to white against the navy bar. */
.brand__tile {
  display: grid;
  place-items: center;
  flex: none;
  inline-size: 2rem;
  block-size: 2rem;
  border-radius: 7px;
  background: var(--white);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
}

.brand__tile img {
  inline-size: 1.375rem;
  block-size: 1.375rem;
}

.brand__word {
  color: var(--on-navy);
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
  /* The product name is never translated or mirrored. */
  direction: ltr;
  unicode-bidi: isolate;
}

.brand__lite {
  color: var(--cyan);
}

.brand__tag {
  display: none;
  padding-inline-start: 0.875rem;
  border-inline-start: 1px solid var(--navy-hairline);
  color: var(--on-navy-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
}

@media (min-width: 44rem) {
  .brand__tag {
    display: block;
  }
}

/* ── Language switch ──────────────────────────────────────────────────── */
.lang {
  display: flex;
  padding: 3px;
  border-radius: var(--r-pill);
  background: var(--navy-raised-2);
  box-shadow: inset 0 0 0 1px var(--navy-hairline);
  flex: none;
}

.lang__btn {
  padding: 0.375rem 0.8125rem;
  border: 0;
  border-radius: var(--r-pill);
  background: none;
  color: var(--on-navy-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.lang__btn:hover {
  color: var(--on-navy);
}

.lang__btn[aria-pressed='true'] {
  background: var(--white);
  color: var(--navy);
}

/* ═══ Flag banner ════════════════════════════════════════════════════════ */

.flagbar {
  background: var(--amber-surface);
  color: var(--amber-ink);
  font-size: 0.875rem;
  font-weight: 600;
}

.flagbar__inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-block: 0.75rem;
}

.flagbar__icon {
  flex: none;
  inline-size: 1.125rem;
  block-size: 1.125rem;
}

/* ═══ Build panel — the first viewport ══════════════════════════════════ */

.build {
  position: relative;
  background: var(--navy);
  color: var(--on-navy);
  overflow: hidden;
}

/* A single soft field of brand light behind the panel. Not a decorative glow:
   it separates the two columns and anchors the primary action. */
.build::before {
  content: '';
  position: absolute;
  inset-block-start: -30%;
  inset-inline-end: -10%;
  inline-size: min(46rem, 90%);
  block-size: 120%;
  background: radial-gradient(
    closest-side,
    rgba(13, 99, 254, 0.36),
    rgba(1, 186, 254, 0.1) 55%,
    transparent 78%
  );
  pointer-events: none;
}

.build__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(2.5rem, 6vw, 4rem);
  align-items: start;
}

@media (min-width: 60rem) {
  .build__inner {
    grid-template-columns: minmax(0, 1fr) minmax(21rem, 27rem);
  }
}

/* ── Identity column ──────────────────────────────────────────────────── */

.build__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
  margin-block-end: 1.5rem;
}

.build__version {
  display: flex;
  align-items: baseline;
  gap: 0.125rem;
  inline-size: fit-content;
  direction: ltr;
  margin-block-end: 0.75rem;
}

.build__v {
  color: var(--on-navy-faint);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  line-height: 1;
}

.build__number {
  font-size: clamp(3.25rem, 11vw, 5.75rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.045em;
  font-variant-numeric: tabular-nums;
}

.build__released {
  color: var(--on-navy-muted);
  font-size: 1rem;
  font-weight: 500;
}

.build__released strong {
  color: var(--on-navy);
  font-weight: 700;
}

.build__lede {
  max-inline-size: 38ch;
  margin-block-start: 1.5rem;
  color: var(--on-navy-muted);
  font-size: 1.0625rem;
  line-height: 1.6;
}

.build__jump {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-block-start: 1.5rem;
  color: var(--cyan);
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  border-block-end: 1px solid transparent;
  transition: border-color var(--dur-fast) var(--ease-out);
}

.build__jump:hover {
  border-block-end-color: currentColor;
}

.build__jump svg {
  inline-size: 1rem;
  block-size: 1rem;
}

/* ── Download stack ───────────────────────────────────────────────────── */

.stack {
  min-inline-size: 0;
  padding: clamp(1.125rem, 3vw, 1.5rem);
  border-radius: var(--r-lg);
  background: var(--navy-raised);
  box-shadow:
    inset 0 0 0 1px var(--navy-hairline),
    var(--shadow-on-navy);
  backdrop-filter: blur(2px);
}

.stack__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-block-end: 0.875rem;
}

.stack__os {
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  color: var(--on-navy-muted);
  font-size: 0.8125rem;
  font-weight: 600;
}

.stack__os svg {
  inline-size: 0.9375rem;
  block-size: 0.9375rem;
  flex: none;
}

.stack__file {
  display: block;
  margin-block-start: 0.625rem;
  color: var(--on-navy-muted);
  font-size: 0.75rem;
  overflow-wrap: anywhere;
}

/* Unsupported-OS notice, replaces the primary button */
.stack__note {
  padding: 0.9375rem 1rem;
  border-radius: var(--r-btn);
  background: var(--navy-raised-2);
  box-shadow: inset 0 0 0 1px var(--navy-hairline);
  color: var(--on-navy-muted);
  font-size: 0.875rem;
  line-height: 1.55;
}

.stack__note strong {
  display: block;
  margin-block-end: 0.25rem;
  color: var(--on-navy);
}

/* ── Secondary file rows ──────────────────────────────────────────────── */

.files {
  margin-block-start: 1.125rem;
  padding-block-start: 1rem;
  border-block-start: 1px solid var(--navy-hairline);
  list-style: none;
  padding-inline: 0;
}

.files__label {
  margin-block-end: 0.625rem;
  color: var(--on-navy-faint);
}

.file {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  inline-size: 100%;
  padding: 0.625rem 0.75rem;
  border: 0;
  border-radius: var(--r-btn);
  background: none;
  color: var(--on-navy);
  text-align: start;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out);
}

.file:hover {
  background: var(--navy-raised-2);
}

.file__body {
  min-inline-size: 0;
  flex: 1;
}

.file__name {
  font-size: 0.875rem;
  font-weight: 600;
}

.file__arch {
  color: var(--on-navy-muted);
  font-size: 0.8125rem;
  font-weight: 500;
}

.file__sub {
  color: var(--on-navy-muted);
  font-size: 0.75rem;
  overflow-wrap: anywhere;
}

.file__arrow {
  flex: none;
  inline-size: 1.0625rem;
  block-size: 1.0625rem;
  color: var(--cyan);
}

/* ── Checksum disclosure ──────────────────────────────────────────────── */

.verify {
  margin-block-start: 1rem;
  padding-block-start: 0.875rem;
  border-block-start: 1px solid var(--navy-hairline);
}

.verify__toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--on-navy-muted);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.verify__toggle::-webkit-details-marker {
  display: none;
}

.verify__toggle:hover {
  color: var(--on-navy);
}

.verify__chev {
  inline-size: 0.875rem;
  block-size: 0.875rem;
  flex: none;
  transition: transform var(--dur-fast) var(--ease-out);
}

.verify[open] .verify__chev {
  transform: rotate(90deg);
}

[dir='rtl'] .verify__chev {
  transform: scaleX(-1);
}

[dir='rtl'] .verify[open] .verify__chev {
  transform: scaleX(-1) rotate(90deg);
}

.verify__body {
  margin-block-start: 0.875rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
}

.hash {
  min-inline-size: 0;
  padding: 0.6875rem 0.75rem;
  border-radius: var(--r-sm);
  background: rgba(0, 0, 0, 0.22);
  box-shadow: inset 0 0 0 1px var(--navy-hairline);
}

.hash__name {
  color: var(--on-navy-muted);
  font-size: 0.6875rem;
  overflow-wrap: anywhere;
}

.hash__row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-block-start: 0.375rem;
}

[dir='rtl'] .hash__value {
  text-align: left;
}

/* 64 hex characters wrap rather than scroll: a hidden scroll affordance is worse
   than two short lines, and wrapping cannot push the copy button out of the card. */
.hash__value {
  flex: 1;
  min-inline-size: 0;
  color: var(--cyan);
  font-size: 0.6875rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
  /* Hashes are Latin hex — keep them LTR even when the page is Arabic. */
  direction: ltr;
  text-align: left;
}

.copy {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.3125rem 0.5625rem;
  border: 0;
  border-radius: var(--r-sm);
  background: var(--navy-raised-2);
  box-shadow: inset 0 0 0 1px var(--navy-hairline);
  color: var(--on-navy-muted);
  font-size: 0.6875rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.copy:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--on-navy);
}

.copy[data-copied='true'] {
  color: var(--mint);
}

.copy svg {
  inline-size: 0.8125rem;
  block-size: 0.8125rem;
}

/* On a narrow screen the hash gets the full width and the copy button drops
   below it, rather than both fighting over ~300px. */
@media (max-width: 30rem) {
  .hash__row {
    flex-wrap: wrap;
  }

  .hash__value {
    flex: 1 1 100%;
  }

  .copy {
    margin-inline-start: auto;
  }
}

.verify__how {
  margin-block-start: 0.25rem;
  color: var(--on-navy-faint);
  font-size: 0.6875rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

/* ── Skeleton / error ─────────────────────────────────────────────────── */

.sk {
  border-radius: var(--r-sm);
  background: linear-gradient(
    100deg,
    var(--navy-raised) 30%,
    var(--navy-raised-2) 50%,
    var(--navy-raised) 70%
  );
  background-size: 300% 100%;
  animation: sk 1.4s var(--ease-out) infinite;
}

@keyframes sk {
  from {
    background-position: 150% 0;
  }
  to {
    background-position: -150% 0;
  }
}

.state {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--r-lg);
  background: var(--navy-raised);
  box-shadow: inset 0 0 0 1px var(--navy-hairline);
}

.state__title {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 1rem;
  font-weight: 800;
}

.state__title svg {
  inline-size: 1.125rem;
  block-size: 1.125rem;
  flex: none;
  color: var(--cyan);
}

.state__body {
  margin-block-start: 0.5rem;
  color: var(--on-navy-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.state__body a {
  color: var(--cyan);
}

/* ── WhatsApp ─────────────────────────────────────────────────────────────
 * One number carries both licensing and support. The glyph does the
 * recognising; the label does the explaining; the number is readable and
 * selectable so it can be saved to contacts on a machine with no WhatsApp.
 */

.wa__icon {
  flex: none;
  inline-size: 1.25rem;
  block-size: 1.25rem;
}

.btn--wa .wa__icon {
  inline-size: 1.125rem;
  block-size: 1.125rem;
}

.wa {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-block-start: 1.125rem;
  padding: 0.75rem 1rem;
  border-radius: var(--r-md);
  background: var(--navy-raised);
  box-shadow: inset 0 0 0 1px var(--navy-hairline);
  color: var(--on-navy);
  text-decoration: none;
  transition:
    background var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.wa:hover {
  background: var(--navy-raised-2);
  box-shadow: inset 0 0 0 1px var(--navy-hairline-strong);
}

.wa .wa__icon {
  color: var(--whatsapp);
  inline-size: 1.5rem;
  block-size: 1.5rem;
}

.wa__body {
  min-inline-size: 0;
}

.wa__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
}

.wa__num {
  display: block;
  color: var(--on-navy-muted);
  font-size: 0.8125rem;
}

/* ═══ Sections ═══════════════════════════════════════════════════════════ */

.section {
  padding-block: clamp(3rem, 7vw, 5rem);
}

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

.section__head {
  max-inline-size: 60ch;
  margin-block-end: clamp(1.75rem, 4vw, 2.5rem);
}

.section__title {
  font-size: clamp(1.5rem, 3.2vw, 2rem);
}

.section__lede {
  margin-block-start: 0.75rem;
  color: var(--text-muted);
  font-size: 1.0625rem;
  line-height: 1.65;
}

/* ═══ Install — two platform columns, no tabs ═══════════════════════════ */

.install {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

@media (min-width: 52rem) {
  .install {
    grid-template-columns: 1fr 1fr;
  }
}

.plat {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--r-card);
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

/* The visitor's own platform is promoted, not isolated. */
.plat[data-yours='true'] {
  border-color: var(--blue);
  box-shadow: var(--shadow-card);
}

.plat__head {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-block-end: 1.25rem;
  padding-block-end: 1rem;
  border-block-end: 1px solid var(--border);
}

.plat__icon {
  flex: none;
  inline-size: 1.375rem;
  block-size: 1.375rem;
  color: var(--blue);
}

.plat__name {
  flex: 1;
  font-size: 1.125rem;
  font-weight: 800;
}

.steps {
  display: grid;
  gap: 1.125rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.step {
  display: grid;
  grid-template-columns: 1.625rem minmax(0, 1fr);
  gap: 0.875rem;
  align-items: start;
  counter-increment: step;
}

.step::before {
  content: counter(step);
  display: grid;
  place-items: center;
  inline-size: 1.625rem;
  block-size: 1.625rem;
  margin-block-start: 0.0625rem;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--blue-ink);
  font-size: 0.75rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.step__title {
  font-size: 0.9375rem;
  font-weight: 700;
}

.step__body {
  margin-block-start: 0.25rem;
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* An OS's literal wording, quoted so it is recognisable on screen. */
.quote {
  display: inline-block;
  unicode-bidi: plaintext;
  margin-block-start: 0.5rem;
  padding: 0.4375rem 0.625rem;
  border-radius: var(--r-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.45;
}

/* ── Licensing callout ────────────────────────────────────────────────── */

.callout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  margin-block-start: 1.25rem;
  padding: clamp(1.25rem, 3vw, 1.625rem);
  border-radius: var(--r-card);
  background: var(--surface-2);
  border: 1px solid #d9e4ff;
}

@media (min-width: 46rem) {
  .callout {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 1.5rem;
  }
}

.callout__title {
  display: flex;
  align-items: center;
  gap: 0.5625rem;
  font-size: 1.0625rem;
  font-weight: 800;
}

.callout__title svg {
  flex: none;
  inline-size: 1.1875rem;
  block-size: 1.1875rem;
  color: var(--blue-ink);
}

.callout__body {
  margin-block-start: 0.5rem;
  max-inline-size: 62ch;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ═══ Release history — a rail, not a stack of cards ════════════════════ */

.rail {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* The continuous line the markers sit on. */
.rail::before {
  content: '';
  position: absolute;
  inset-block: 0.5rem 0;
  inset-inline-start: 5px;
  inline-size: 1px;
  background: linear-gradient(
    to bottom,
    var(--border-strong) 0 72%,
    transparent
  );
}

.rel {
  position: relative;
  padding-inline-start: 2rem;
  padding-block-end: clamp(2rem, 4vw, 2.75rem);
}

.rail > .rel:last-child {
  padding-block-end: 0;
}

.rel::before {
  content: '';
  position: absolute;
  inset-block-start: 0.5rem;
  inset-inline-start: 0;
  inline-size: 11px;
  block-size: 11px;
  border-radius: 50%;
  background: var(--surface);
  box-shadow: inset 0 0 0 2px var(--border-strong);
}

.rel[data-current='true']::before {
  background: var(--mint);
  box-shadow:
    inset 0 0 0 2px var(--mint),
    0 0 0 4px var(--mint-surface);
}

.rel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
  margin-block-end: 0.75rem;
}

.rel__version {
  font-size: 1.25rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.rel__date {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.rel__notes {
  max-inline-size: 72ch;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  /* Release notes are authored in English only — keep them LTR in Arabic. */
  direction: ltr;
  text-align: left;
}

.rel__notes ul {
  margin: 0;
  padding-inline-start: 1.125rem;
  display: grid;
  gap: 0.5rem;
}

.rel__notes li::marker {
  color: var(--border-strong);
}

.rel__notes strong {
  color: var(--text);
  font-weight: 700;
}

.rel__notes p + p,
.rel__notes ul + p,
.rel__notes p + ul {
  margin-block-start: 0.75rem;
}

.rel__notes code {
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: var(--surface-2);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.rel__none {
  color: var(--text-muted);
  font-size: 0.9375rem;
  font-style: italic;
}

/* ═══ Footer ═════════════════════════════════════════════════════════════ */

.site-footer {
  background: var(--navy);
  color: var(--on-navy-muted);
  padding-block: clamp(2.5rem, 6vw, 4rem) 2rem;
}

.foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 3.5rem);
}

@media (min-width: 52rem) {
  .foot {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.foot__title {
  color: var(--on-navy);
  font-size: 1.0625rem;
  font-weight: 800;
  margin-block-end: 0.5rem;
}

.foot__body {
  font-size: 0.9375rem;
  line-height: 1.65;
  max-inline-size: 46ch;
}

.foot__body a {
  color: var(--cyan);
  font-weight: 600;
}

/* Brochure links carry a real thumbnail of the sheet they open. */
.sheets {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
  margin-block-start: 1.125rem;
  padding: 0;
  list-style: none;
}

@media (min-width: 30rem) {
  .sheets {
    grid-template-columns: 1fr 1fr;
  }
}

.sheet {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.75rem;
  border-radius: var(--r-md);
  background: var(--navy-raised);
  box-shadow: inset 0 0 0 1px var(--navy-hairline);
  color: var(--on-navy);
  text-decoration: none;
  transition:
    background var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.sheet:hover {
  background: var(--navy-raised-2);
  box-shadow: inset 0 0 0 1px var(--navy-hairline-strong);
}

.sheet__thumb {
  flex: none;
  inline-size: 2.25rem;
  block-size: 3rem;
  border-radius: 4px;
  object-fit: cover;
  object-position: top center;
  background: var(--white);
}

.sheet > span {
  min-inline-size: 0;
}

.sheet__name {
  font-size: 0.875rem;
  font-weight: 700;
}

.sheet__sub {
  color: var(--on-navy-muted);
  font-size: 0.75rem;
}

.foot__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-block-start: clamp(2rem, 5vw, 3rem);
  padding-block-start: 1.5rem;
  border-block-start: 1px solid var(--navy-hairline);
  color: var(--on-navy-faint);
  font-size: 0.8125rem;
}

/* ═══ Motion — one authored moment, reused ══════════════════════════════
 * Content is visible by default; the animation only runs where scripting is
 * on and the visitor has not asked for reduced motion.
 */

@media (scripting: enabled) and (prefers-reduced-motion: no-preference) {
  [data-rise] {
    opacity: 0;
    transform: translateY(14px);
    filter: blur(6px);
  }

  [data-rise].is-in {
    opacity: 1;
    transform: none;
    filter: none;
    transition:
      opacity var(--dur-slow) var(--ease-out),
      transform var(--dur-slow) var(--ease-out),
      filter var(--dur-slow) var(--ease-out);
    transition-delay: var(--rise-delay, 0ms);
  }
}