/*
 * codegate.online — one stylesheet for both languages and both themes.
 * Colours: codegate/lib/core/design/palette.dart. Logical properties (inline /
 * block) throughout, so every rule mirrors itself between RTL and LTR.
 * The contrast of every text pair is asserted by tests/test_contrast.py.
 */

@font-face {
  font-family: "Tajawal";
  src: url("../fonts/tajawal-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Tajawal";
  src: url("../fonts/tajawal-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Tajawal";
  src: url("../fonts/tajawal-700.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #F8F7F6;
  --surface: #FFFFFF;
  --sunk: #F0EDEA;
  --ink: #1E1E1C;
  --ink-2: #6B6863;
  --ink-3: #75716C;
  --rule: #E6E2DD;
  --rule-strong: #CDC7C0;
  --brand: #FF6A00;
  --brand-text: #B04E00;
  --brand-tint: #FFE7D6;
  --brand-deep: #7A3600;
  --panel: #211F1D;
  --on-panel: #F2F0ED;
  --on-panel-2: #A8A49E;
  --grid-line: rgba(30, 30, 28, 0.055);
  --shadow: 0 1px 2px rgba(30, 30, 28, 0.06), 0 12px 32px rgba(30, 30, 28, 0.07);
  --radius: 20px;
  --font: "Tajawal", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #121211;
    --surface: #1C1C1A;
    --sunk: #171715;
    --ink: #F2F0ED;
    --ink-2: #A8A49E;
    --ink-3: #88837E;
    --rule: #2C2B28;
    --rule-strong: #46443F;
    --brand-text: #FF9A3D;
    --brand-tint: #40260D;
    --brand-deep: #FFD1AF;
    --panel: #26241F;
    --grid-line: rgba(242, 240, 237, 0.05);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.45), 0 12px 32px rgba(0, 0, 0, 0.35);
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-block-start: 88px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.8;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

html[lang="en"] body {
  line-height: 1.65;
}

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

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.2;
  text-wrap: balance;
}

a {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-color: var(--brand);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.32em;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--brand-text);
}

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

code,
.num {
  font-family: var(--mono);
}

.num {
  direction: ltr;
  unicode-bidi: isolate;
}

.nowrap {
  white-space: nowrap;
}

.wrap {
  max-inline-size: 1120px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 32px);
}

.skip {
  position: absolute;
  inset-inline-start: 16px;
  inset-block-start: -80px;
  z-index: 20;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 700;
  text-decoration: none;
}

.skip:focus {
  inset-block-start: 12px;
}

/* ---- masthead ---- */

.masthead {
  position: sticky;
  inset-block-start: 0;
  z-index: 10;
  border-block-end: 1px solid var(--rule);
  background: var(--paper);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  backdrop-filter: blur(12px) saturate(1.2);
}

.masthead__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-block-size: 68px;
}

.brand {
  flex: none;
  text-decoration: none;
}

.brand img {
  inline-size: 69px;
  block-size: 32px;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.6vw, 30px);
  font-size: 15px;
  font-weight: 500;
}

.nav a {
  color: var(--ink-2);
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

.nav .nav__lang {
  padding: 5px 14px 3px;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  color: var(--ink);
  line-height: 1.5;
}

.nav .nav__lang:hover {
  border-color: var(--ink);
}

@media (max-width: 560px) {
  .nav__section {
    display: none;
  }
}

/* ---- hero ---- */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(48px, 9vw, 120px) clamp(56px, 9vw, 112px);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 75% 70% at 50% 40%, #000 25%, transparent 75%);
  mask-image: radial-gradient(ellipse 75% 70% at 50% 40%, #000 25%, transparent 75%);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(32px, 6vw, 72px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-block-end: 22px;
  color: var(--ink-2);
  font-size: 15px;
  font-weight: 500;
}

.eyebrow::before {
  content: "";
  inline-size: 30px;
  block-size: 3px;
  border-radius: 3px;
  background: var(--brand);
}

html[lang="en"] .eyebrow {
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(42px, 7vw, 80px);
  line-height: 1.15;
}

html[lang="en"] .hero h1 {
  letter-spacing: -0.025em;
  line-height: 1.02;
}

.marker {
  padding-inline: 0.04em;
  background-image: linear-gradient(var(--brand), var(--brand));
  background-repeat: no-repeat;
  background-size: 100% 0.16em;
  background-position: 0 88%;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.lede {
  max-inline-size: 36ch;
  margin-block-start: 26px;
  color: var(--ink-2);
  font-size: clamp(18px, 2.1vw, 21px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 48px;
  padding: 10px 24px 8px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease,
    color 0.2s ease;
}

.btn:hover {
  color: var(--ink);
  transform: translateY(-2px);
}

.btn--solid {
  background: var(--ink);
  color: var(--paper);
}

.btn--solid:hover {
  border-color: var(--brand);
  background: var(--brand);
  color: #1E1E1C;
}

.gate {
  justify-self: center;
  inline-size: min(100%, 440px);
}

.gate svg {
  inline-size: 100%;
  overflow: visible;
}

.gate__solid {
  fill: var(--brand);
}

.gate__line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 46;
}

@media (max-width: 820px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }

  .gate {
    justify-self: end;
    inline-size: min(52vw, 230px);
    margin-block-start: -8px;
  }
}

/* ---- sections ---- */

.section {
  padding-block: clamp(64px, 9vw, 120px);
  border-block-start: 1px solid var(--rule);
}

.section__head {
  display: grid;
  gap: 10px;
  max-inline-size: 62ch;
  margin-block-end: clamp(28px, 4vw, 48px);
}

.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--brand-text);
  font-size: 15px;
  font-weight: 700;
}

.kicker .num {
  padding: 1px 8px;
  border-radius: 6px;
  background: var(--brand-tint);
  color: var(--brand-deep);
  font-size: 13px;
}

.section h2 {
  font-size: clamp(30px, 4.4vw, 48px);
}

.section__lede {
  color: var(--ink-2);
  font-size: clamp(17px, 1.8vw, 19px);
}

/* ---- apps ---- */

.apps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr));
  gap: clamp(16px, 2.4vw, 24px);
}

.app {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 18px 20px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.app::after {
  content: "";
  position: absolute;
  inset-block-start: -26px;
  inset-inline-end: -26px;
  inline-size: 72px;
  block-size: 72px;
  border-radius: 22px;
  background: var(--brand);
  transform: rotate(14deg);
  transition: transform 0.35s ease;
}

.app:hover::after {
  transform: rotate(30deg) scale(1.06);
}

.app__icon {
  display: grid;
  place-items: center;
  inline-size: 72px;
  block-size: 72px;
  overflow: hidden;
  border-radius: 18px;
}

.app__icon img {
  inline-size: 100%;
  block-size: 100%;
}

.app__icon--tile {
  border: 1px solid var(--rule);
  background: var(--sunk);
}

.app__icon--tile img {
  inline-size: 38px;
  block-size: 42px;
}

.app__title {
  display: grid;
  justify-items: start;
  gap: 6px;
  padding-inline-end: 44px;
}

.app h3 {
  font-size: clamp(21px, 2.2vw, 24px);
}

.app__status {
  padding: 3px 11px 1px;
  border-radius: 999px;
  background: var(--brand-tint);
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
}

.app__desc {
  grid-column: 1 / -1;
  color: var(--ink-2);
}

.app__meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 16px;
  padding-block-start: 16px;
  border-block-start: 1px dashed var(--rule-strong);
}

.pkg {
  color: var(--ink-3);
  font-size: 13px;
}

.app__link {
  font-weight: 700;
}

/* ---- about ---- */

.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(28px, 5vw, 72px);
}

.prose {
  display: grid;
  gap: 1em;
  max-inline-size: 62ch;
  color: var(--ink-2);
  font-size: clamp(17px, 1.8vw, 19px);
}

.ledger {
  position: relative;
  overflow: hidden;
  margin: 0;
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--on-panel);
  box-shadow: var(--shadow);
}

.ledger::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: 5px;
  background: var(--brand);
}

.ledger div {
  display: grid;
  grid-template-columns: minmax(0, 10.5em) minmax(0, 1fr);
  gap: 4px 16px;
  padding-block: 14px;
  border-block-end: 1px solid rgba(242, 240, 237, 0.1);
}

.ledger div:last-child {
  border-block-end: 0;
}

.ledger dt {
  color: var(--on-panel-2);
  font-size: 14px;
}

.ledger dd {
  margin: 0;
  font-weight: 500;
}

.ledger a {
  color: var(--on-panel);
}

.ledger a:hover {
  color: var(--brand);
}

@media (max-width: 820px) {
  .about__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 440px) {
  .ledger div {
    grid-template-columns: 1fr;
  }
}

/* ---- contact ---- */

.section--contact {
  background: linear-gradient(180deg, transparent, var(--sunk));
}

.mail {
  display: inline-block;
  direction: ltr;
  unicode-bidi: isolate;
  padding-block-end: 0.06em;
  background-image: linear-gradient(var(--brand), var(--brand));
  background-repeat: no-repeat;
  background-size: 100% 0.1em;
  background-position: 0 100%;
  font-size: clamp(28px, 6.4vw, 72px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  text-decoration: none;
  transition: background-size 0.3s ease;
}

.mail:hover {
  color: var(--ink);
  background-size: 100% 0.24em;
}

/* ---- colophon ---- */

.colophon {
  padding-block: 34px 44px;
  border-block-start: 1px solid var(--rule);
  color: var(--ink-3);
  font-size: 14px;
}

.colophon__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 32px;
}

.colophon a {
  color: var(--ink-2);
}

/* ---- document pages ---- */

.doc {
  padding-block: clamp(36px, 6vw, 80px) clamp(64px, 9vw, 120px);
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-block-end: clamp(24px, 4vw, 40px);
  color: var(--ink-3);
  font-size: 14px;
}

.crumbs a {
  color: var(--ink-2);
}

.doc__head {
  display: grid;
  gap: 16px;
  max-inline-size: 68ch;
}

.doc__app {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink-2);
  font-weight: 700;
}

.doc__app img {
  inline-size: 56px;
  block-size: 56px;
  border-radius: 14px;
}

.doc h1 {
  font-size: clamp(36px, 5.6vw, 64px);
}

.doc__meta,
.doc__summary {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}

.doc__meta {
  gap: 6px 22px;
  color: var(--ink-3);
  font-size: 14px;
}

.doc__summary {
  gap: 10px;
  margin-block-start: clamp(24px, 4vw, 36px);
}

.doc__summary li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 6px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
  font-size: 15px;
  font-weight: 700;
}

.doc__summary li::before {
  content: "";
  inline-size: 10px;
  block-size: 10px;
  border-radius: 3px;
  background: var(--brand);
}

.doc__body {
  max-inline-size: 68ch;
  margin-block-start: clamp(28px, 4vw, 44px);
  color: var(--ink);
}

.doc__contact {
  padding-block-start: 16px;
  border-block-start: 1px solid var(--rule);
}

/* ---- 404 ---- */

.lost {
  padding-block: clamp(72px, 12vw, 160px);
}

.lost__box {
  display: grid;
  justify-items: start;
  gap: 14px;
}

.lost__code {
  color: var(--brand);
  font-family: var(--mono);
  font-size: clamp(64px, 14vw, 160px);
  font-weight: 700;
  line-height: 1;
}

.lost__en {
  color: var(--ink-2);
  font-size: 20px;
}

/* ---- motion: one orchestrated entrance, nothing that loops ---- */

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }

  .rise {
    animation: rise 0.8s cubic-bezier(0.2, 0.75, 0.2, 1) both;
  }

  .rise--2 {
    animation-delay: 0.08s;
  }

  .rise--3 {
    animation-delay: 0.16s;
  }

  .rise--4 {
    animation-delay: 0.24s;
  }

  .gate__solid,
  .gate__line {
    transform-box: fill-box;
    transform-origin: center;
  }

  .gate__solid {
    animation: gate-in-a 1.1s 0.1s cubic-bezier(0.2, 0.75, 0.2, 1) both;
  }

  .gate__line {
    animation: gate-in-b 1.1s 0.22s cubic-bezier(0.2, 0.75, 0.2, 1) both;
  }

  .app {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

  .app:hover {
    transform: translateY(-3px);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes gate-in-a {
  from {
    opacity: 0;
    transform: translate(-24%, -24%) rotate(-12deg);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes gate-in-b {
  from {
    opacity: 0;
    transform: translate(24%, 24%) rotate(12deg);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .masthead,
  .skip,
  .gate,
  .app::after {
    display: none;
  }
}