/* ============================================================
   محكمة الترجمة — single-column, mobile-first, Arabic RTL.
   Visual direction: a court dossier on warm wood — brass rules,
   parchment pages, and one deep-red curtain accent.
   ============================================================ */

:root {
  /* Core palette */
  --wood-900: #2a1a12;
  --wood-800: #352117;
  --wood-700: #4a2f1e;
  --gold-500: #c8a04a;
  --gold-200: #e8cf92;
  --parchment: #f4e6c8;
  --parchment-light: #f8eeda;
  --parchment-2: #ecdcb6;
  --parchment-edge: #ddc79b;
  --ink: #241a12;
  --ink-soft: #5a4630;
  --curtain: #7a1f2b;
  --curtain-deep: #5f1721;
  --ok: #1f7a4d;
  --ok-deep: #155c39;
  --ng: #b3261e;
  --ng-deep: #8f1d17;
  --white: #ffffff;

  /* Supporting tokens */
  --muted-on-dark: #d9c7a4;
  --gold-soft: rgba(200, 160, 74, 0.55);
  --gold-line: rgba(200, 160, 74, 0.45);
  --light-pool: rgba(200, 160, 74, 0.11);
  --grain: rgba(232, 207, 146, 0.024);
  --card-shadow: rgba(16, 9, 5, 0.5);
  --bar-bg: #23150f;
  --bar-shadow: rgba(0, 0, 0, 0.4);
  --veil-top: rgba(24, 14, 8, 0.32);
  --veil-mid: rgba(24, 14, 8, 0.62);
  --veil-strong: rgba(24, 14, 8, 0.9);
  --focus-ring: #ffe6a3;
  --focus-shadow: #1a0f08;

  --font-body: "IBM Plex Sans Arabic", "Segoe UI", Tahoma, sans-serif;
  --font-head: "Noto Kufi Arabic", "Segoe UI", Tahoma, sans-serif;

  --col: 480px;
  --gutter: 1.25rem;
  --radius: 6px;
  --tap: 48px;
  --tabbar-h: 3.5rem;
  --ease: 170ms ease;

  color-scheme: dark;
}

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

[hidden] { display: none !important; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-block-end: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 0.5rem);
}

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

body {
  margin: 0;
  background-color: var(--wood-900);
  background-image:
    radial-gradient(80% 26rem at 50% -4rem, var(--light-pool), transparent 70%),
    repeating-linear-gradient(180deg, var(--grain) 0 1px, transparent 1px 7px);
  color: var(--parchment);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.9;
  text-rendering: optimizeLegibility;
}

body.site {
  padding-block-end: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 1.25rem);
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 0.6em;
  text-wrap: balance;
}

p { margin: 0 0 1em; }

a { color: var(--gold-200); text-underline-offset: 3px; }

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

::selection {
  background: var(--gold-500);
  color: var(--wood-900);
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
  box-shadow: 0 0 0 3px var(--focus-shadow);
  border-radius: 4px;
}

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

/* ---- Shared column ---------------------------------------- */

.hero,
.foot {
  inline-size: 100%;
  max-inline-size: var(--col);
  margin-inline: auto;
}

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

/* ---- Hero -------------------------------------------------- */

.hero {
  padding-block-start: 0.5rem;
}

.hero__mast {
  padding: 1.75rem var(--gutter) 1.6rem;
  text-align: center;
}

.hero__mast::before {
  content: "";
  display: block;
  inline-size: 2.5rem;
  block-size: 2px;
  margin: 0 auto 1.25rem;
  background: var(--gold-500);
}

.hero__title {
  margin: 0 0 0.35rem;
  color: var(--gold-200);
  font-size: 2.1rem;
  line-height: 1.35;
  text-shadow: 0 2px 18px var(--gold-line);
}

.hero__sub {
  margin: 0;
  color: var(--parchment);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.hero__figure {
  position: relative;
  margin: 0;
  border-block: 1px solid var(--gold-500);
  background: var(--wood-800);
  overflow: hidden;
}

.hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 4rem var(--veil-top);
  pointer-events: none;
}

.hero__figure img {
  inline-size: 100%;
  aspect-ratio: 853 / 1280;
  object-fit: cover;
}

/* ---- Part 1: research outline ------------------------------ */

.research {
  padding-block: 2.75rem 0;
}

.kicker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin: 0 0 1.4rem;
  color: var(--gold-500);
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.6;
}

.kicker::before,
.kicker::after {
  content: "";
  inline-size: 1.75rem;
  block-size: 1px;
  background: var(--gold-line);
}

.doc-label {
  margin: 0 0 0.3rem;
  color: var(--muted-on-dark);
  font-size: 0.85rem;
  line-height: 1.6;
  text-align: center;
}

.research__title {
  margin: 0 0 1.9rem;
  color: var(--parchment);
  font-size: 1.5rem;
  line-height: 1.5;
  text-align: center;
}

.toc {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc__item {
  padding: 0.85rem 1rem;
  background: var(--parchment);
  border: 1px solid var(--gold-500);
  border-radius: var(--radius);
  box-shadow:
    inset 0 0 0 3px var(--parchment),
    inset 0 0 0 4px var(--gold-soft),
    0 2px 0 var(--card-shadow);
}

.toc__item--group {
  padding-block-end: 1rem;
}

.toc__title {
  margin: 0;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.7;
  text-align: start;
  text-wrap: pretty;
  overflow-wrap: break-word;
}

.toc__sub {
  display: grid;
  gap: 0.6rem;
  margin: 0.9rem 0 0;
  padding-block: 0.85rem;
  padding-inline: 1rem;
  list-style: none;
  background: var(--parchment-light);
  border-inline-start: 2px solid var(--gold-500);
  border-radius: 4px;
}

.toc__subtitle {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.8;
  letter-spacing: normal;
  text-align: start;
  text-wrap: pretty;
  overflow-wrap: break-word;
}

/* ---- Gold rule --------------------------------------------- */

.rule {
  position: relative;
  block-size: 1px;
  margin-block: 2.5rem;
  border: 0;
  background: linear-gradient(
    90deg,
    transparent,
    var(--gold-500) 16%,
    var(--gold-500) 84%,
    transparent
  );
}

.rule::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-start: 50%;
  inline-size: 7px;
  block-size: 7px;
  margin-inline: auto;
  background: var(--gold-500);
  transform: translateY(-50%) rotate(45deg);
}

/* ---- References -------------------------------------------- */

.refs__title {
  margin: 0 0 1rem;
  color: var(--gold-200);
  font-size: 1.1rem;
  line-height: 1.6;
  text-align: start;
}

.refs__title::after {
  content: "";
  display: block;
  inline-size: 2.25rem;
  block-size: 2px;
  margin-block-start: 0.45rem;
  background: var(--gold-500);
}

.refs {
  margin: 0;
  padding: 0;
  list-style: none;
}

.refs li {
  position: relative;
  padding-inline-start: 1.15rem;
  color: var(--parchment);
  font-size: 1.0625rem;
  line-height: 1.9;
  text-wrap: pretty;
}

.refs li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.8rem;
  inline-size: 6px;
  block-size: 6px;
  background: var(--gold-500);
  transform: rotate(45deg);
}

.refs li + li {
  margin-block-start: 0.9rem;
  padding-block-start: 0.9rem;
  border-block-start: 1px solid var(--wood-700);
}

/* ---- Into the trial ---------------------------------------- */

.cta {
  margin-block-start: 2.75rem;
  padding: 1.6rem 1.35rem 1.5rem;
  text-align: center;
  background-color: var(--curtain);
  background-image: linear-gradient(180deg, var(--curtain-deep), transparent 65%);
  border: 1px solid var(--gold-500);
  border-radius: var(--radius);
  box-shadow:
    inset 0 0 0 3px var(--curtain),
    inset 0 0 0 4px var(--gold-soft);
}

.cta__title {
  margin: 0 0 0.5rem;
  color: var(--gold-200);
  font-size: 1.2rem;
  line-height: 1.5;
}

.cta__text {
  max-inline-size: 22rem;
  margin: 0 auto 1.25rem;
  color: var(--parchment);
  font-size: 1.0625rem;
  line-height: 1.9;
}

/* ---- Buttons ----------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: var(--tap);
  padding: 0.7rem 1.6rem;
  appearance: none;
  background: var(--gold-500);
  color: var(--wood-900);
  border: 1px solid var(--wood-900);
  border-radius: 4px;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--ease),
    border-color var(--ease),
    transform var(--ease);
}

.btn:active {
  background: var(--gold-200);
  border-color: var(--wood-900);
  transform: translateY(1px);
}

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

/* ---- Part 2: court intro ----------------------------------- */

.trial {
  padding-block: 2.75rem 0;
}

.intro {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-block-size: 30rem;
  overflow: hidden;
  border: 1px solid var(--gold-500);
  border-radius: var(--radius);
  background: var(--wood-800);
}

.intro__img {
  position: absolute;
  inset: 0;
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  object-position: 50% 30%;
}

.intro::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    var(--veil-top) 0%,
    var(--veil-mid) 46%,
    var(--veil-strong) 100%
  );
}

.intro__content {
  position: relative;
  z-index: 1;
  inline-size: 100%;
  padding: 1.5rem 1.35rem 1.6rem;
  text-align: center;
}

.intro__title {
  margin: 0 0 0.55rem;
  color: var(--gold-200);
  font-size: 1.55rem;
  line-height: 1.4;
}

.intro__text {
  margin: 0 0 1.25rem;
  color: var(--parchment);
  font-size: 1.0625rem;
  line-height: 1.9;
}

/* ---- Quiz -------------------------------------------------- */

.quiz {
  margin-block-start: 1.5rem;
  scroll-margin-block-start: 1rem;
}

.quiz__meta { margin-block-end: 0.9rem; }

.quiz__count {
  margin: 0 0 0.55rem;
  color: var(--gold-200);
  font-size: 0.95rem;
  line-height: 1.6;
  text-align: start;
}

.quiz__bar {
  display: block;
  inline-size: 100%;
  block-size: 6px;
  appearance: none;
  border: 0;
  border-radius: 999px;
  overflow: hidden;
  background: var(--wood-700);
}

.quiz__bar::-webkit-progress-bar {
  background: var(--wood-700);
  border-radius: 999px;
}

.quiz__bar::-webkit-progress-value {
  background: var(--gold-500);
  border-radius: 999px;
}

.quiz__bar::-moz-progress-bar {
  background: var(--gold-500);
  border-radius: 999px;
}

.qcard {
  padding: 1.35rem 1.2rem 1.25rem;
  background: var(--parchment);
  border: 1px solid var(--gold-500);
  border-radius: var(--radius);
  box-shadow:
    inset 0 0 0 3px var(--parchment),
    inset 0 0 0 4px var(--gold-soft),
    0 2px 0 var(--card-shadow);
}

.qcard__stem {
  margin: 0 0 1.1rem;
  color: var(--ink);
  font-size: 1.075rem;
  line-height: 1.75;
  text-align: start;
  text-wrap: pretty;
}

.qcard__options {
  display: grid;
  gap: 0.65rem;
  margin-block-end: 1.15rem;
}

.option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  inline-size: 100%;
  min-block-size: var(--tap);
  padding: 0.8rem 1rem;
  background: var(--parchment-2);
  color: var(--ink);
  border: 1px solid var(--wood-700);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  text-align: start;
  cursor: pointer;
  transition:
    background-color var(--ease),
    border-color var(--ease),
    color var(--ease);
}

.option:active { background: var(--parchment-edge); }

.option[aria-disabled="true"] { cursor: default; }

.option__label { flex: 1 1 auto; }

.option.is-correct {
  background: var(--ok);
  border-color: var(--ok-deep);
  color: var(--white);
}

.option.is-correct::after {
  content: "\2713";
  margin-inline-start: auto;
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
}

.option.is-wrong {
  background: var(--ng);
  border-color: var(--ng-deep);
  color: var(--white);
}

.option.is-wrong::after {
  content: "\2715";
  margin-inline-start: auto;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
}

/* ---- Result ------------------------------------------------ */

.result {
  padding: 1.7rem 1.3rem 1.5rem;
  text-align: center;
  background: var(--parchment);
  border: 1px solid var(--gold-500);
  border-radius: var(--radius);
  box-shadow:
    inset 0 0 0 3px var(--parchment),
    inset 0 0 0 4px var(--gold-soft),
    0 2px 0 var(--card-shadow);
}

.result__title {
  margin: 0 0 0.35rem;
  color: var(--ink);
  font-size: 1.35rem;
  line-height: 1.5;
}

.result__verdict {
  margin: 0 0 1.4rem;
  color: var(--curtain);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.9;
}

/* ---- Footer ------------------------------------------------ */

.foot {
  margin-block-start: 2.5rem;
  padding: 1.5rem var(--gutter) 0;
  border-block-start: 1px solid var(--wood-700);
  text-align: center;
}

.foot__name {
  margin: 0;
  color: var(--muted-on-dark);
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.6;
}

/* ---- Fixed part switcher ----------------------------------- */

.tabbar {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  z-index: 20;
  display: flex;
  justify-content: center;
  pointer-events: none;
}

.tabbar__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  inline-size: 100%;
  max-inline-size: var(--col);
  margin-inline: auto;
  background: var(--bar-bg);
  border-block-start: 1px solid var(--gold-500);
  box-shadow: 0 -8px 24px var(--bar-shadow);
  padding-block-end: env(safe-area-inset-bottom);
  pointer-events: auto;
}

.tabbar__link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-block-size: var(--tabbar-h);
  color: var(--muted-on-dark);
  border-block-start: 3px solid transparent;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.4;
  text-decoration: none;
  transition:
    color var(--ease),
    border-color var(--ease);
}

.tabbar__link + .tabbar__link {
  border-inline-start: 1px solid var(--wood-700);
}

.tabbar__link[aria-current="true"] {
  color: var(--gold-200);
  border-block-start-color: var(--gold-500);
}

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

.notfound {
  min-block-size: 100svh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.notfound__main {
  inline-size: 100%;
  max-inline-size: 26rem;
}

.notfound__card {
  padding: 2rem 1.5rem 1.75rem;
  text-align: center;
  background: var(--parchment);
  border: 1px solid var(--gold-500);
  border-radius: var(--radius);
  box-shadow:
    inset 0 0 0 3px var(--parchment),
    inset 0 0 0 4px var(--gold-soft),
    0 2px 0 var(--card-shadow);
}

.notfound__card::before {
  content: "";
  display: block;
  inline-size: 2.25rem;
  block-size: 2px;
  margin: 0 auto 1.35rem;
  background: var(--gold-500);
}

.notfound__card h1 {
  margin: 0 0 0.65rem;
  color: var(--ink);
  font-size: 1.55rem;
  line-height: 1.5;
}

.notfound__card p {
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
  font-size: 1.0625rem;
  line-height: 1.9;
}

/* ---- Small phones ------------------------------------------ */

@media (max-width: 360px) {
  :root { --gutter: 1rem; }

  .hero__title { font-size: 1.9rem; }
  .hero__mast { padding-block: 1.5rem 1.35rem; }
  .research__title { font-size: 1.35rem; }
  .toc__item { padding: 0.75rem 0.85rem; }
  .intro { min-block-size: 26rem; }
  .qcard { padding: 1.15rem 1rem 1.05rem; }
}

/* ---- Reduced motion ---------------------------------------- */

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