/* ============================================================
   موسوعة الخيل — الدليل المعرفي
   أسلوب قواعد المعرفة الحديثة (knowledge base / docs)
   تركيز على المحتوى النصّي الثري الظاهر
   ============================================================ */

:root {
  --k-bg: #ffffff;
  --k-bg-soft: #f7f8fb;
  --k-bg-soft2: #eef0f6;
  --k-ink: #1e2330;
  --k-ink-soft: #4d566a;
  --k-ink-mute: #889; /* fallback */
  --k-ink-mute: #8b94a6;
  --k-line: #e5e8f0;
  --k-line-strong: #d3d8e4;
  --k-accent: #4b46c4;
  --k-accent-deep: #3a35a3;
  --k-accent-soft: #ecebfb;
  --k-warm: #b9842f;
  --k-info-bg: #eef6ff;
  --k-info-line: #b9d8f5;

  --k-font: "Tajawal", system-ui, -apple-system, "Segoe UI", sans-serif;
  --k-header-h: 60px;
  --k-maxw: 1320px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body.guide-body {
  margin: 0;
  font-family: var(--k-font);
  color: var(--k-ink);
  background: var(--k-bg);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
.guide-body a { color: var(--k-accent); text-decoration: none; }
.guide-body a:hover { text-decoration: underline; }

/* ===================== Top bar ===================== */
.k-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--k-header-h);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--k-line);
}
.k-topbar-inner {
  max-width: var(--k-maxw);
  margin: 0 auto;
  height: 100%;
  padding: 0 22px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.k-logo { display: flex; align-items: center; gap: 8px; color: var(--k-ink) !important; }
.k-logo:hover { text-decoration: none !important; }
.k-logo-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--k-accent), var(--k-accent-deep));
  color: #fff;
  border-radius: 9px;
}
.k-logo-text { font-size: 18px; font-weight: 800; }
.k-logo-sep { color: var(--k-ink-mute); }
.k-logo-kicker { font-size: 14px; color: var(--k-ink-soft); font-weight: 500; }

.k-search {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--k-bg-soft);
  border: 1px solid var(--k-line-strong);
  border-radius: 9px;
  padding: 7px 12px;
  width: min(320px, 38vw);
  color: var(--k-ink-mute);
}
.k-search:focus-within { border-color: var(--k-accent); box-shadow: 0 0 0 3px var(--k-accent-soft); }
.k-search input {
  border: none; background: transparent; outline: none;
  font-family: inherit; font-size: 14px; color: var(--k-ink); width: 100%;
}
.k-nav-toggle {
  display: none;
  background: var(--k-bg-soft);
  border: 1px solid var(--k-line-strong);
  border-radius: 8px;
  padding: 8px 12px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  color: var(--k-ink);
  cursor: pointer;
}

/* ===================== Layout ===================== */
.k-layout {
  max-width: var(--k-maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 256px minmax(0, 1fr) 244px;
  gap: 0;
  align-items: start;
}

/* ===================== Left sidebar ===================== */
.k-sidebar {
  position: sticky;
  top: var(--k-header-h);
  align-self: start;
  height: calc(100vh - var(--k-header-h));
  overflow-y: auto;
  padding: 26px 18px 40px;
  border-inline-end: 1px solid var(--k-line);
}
.k-tree-title, .k-tree-foot p {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .6px;
  color: var(--k-ink-mute);
  margin: 0 0 10px;
  padding-inline-start: 12px;
}
.k-tree ul { list-style: none; padding: 0; margin: 0; }
.k-tree > ul > li > a {
  display: block;
  padding: 7px 12px;
  border-radius: 7px;
  color: var(--k-ink-soft);
  font-size: 14.5px;
  font-weight: 500;
  border-inline-start: 2px solid transparent;
  transition: background .15s ease, color .15s ease;
}
.k-tree a:hover { background: var(--k-bg-soft); color: var(--k-ink); text-decoration: none; }
.k-tree a.is-current {
  color: var(--k-accent-deep);
  background: var(--k-accent-soft);
  border-inline-start-color: var(--k-accent);
  font-weight: 700;
}
.k-tree li ul { margin: 2px 0 4px; }
.k-tree li ul a {
  display: block;
  padding: 5px 12px 5px 22px;
  padding-inline-start: 24px;
  font-size: 13.5px;
  color: var(--k-ink-mute);
  border-radius: 6px;
}
.k-tree-foot {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--k-line);
}

/* ===================== Article ===================== */
.k-article {
  padding: 32px clamp(24px, 4vw, 56px) 80px;
  min-width: 0;
  max-width: 820px;
}
.k-breadcrumb {
  font-size: 13px;
  color: var(--k-ink-mute);
  margin-bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.k-breadcrumb a { color: var(--k-ink-soft); }
.k-breadcrumb .k-current { color: var(--k-ink); font-weight: 500; }

.k-title {
  font-size: clamp(30px, 4.4vw, 44px);
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 14px;
  letter-spacing: -.3px;
}
.k-lead {
  font-size: 19px;
  color: var(--k-ink-soft);
  line-height: 1.85;
  margin: 0 0 18px;
}
.k-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  font-size: 13.5px;
  color: var(--k-ink-mute);
  padding-bottom: 22px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--k-line);
}
.k-badge {
  background: var(--k-accent-soft);
  color: var(--k-accent-deep);
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 12.5px;
}

.k-section { padding-top: 26px; scroll-margin-top: calc(var(--k-header-h) + 16px); }
.k-section h2 {
  font-size: 26px;
  font-weight: 800;
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--k-line);
  letter-spacing: -.2px;
}
.k-section h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 22px 0 10px;
  color: var(--k-ink);
}
.k-section p { margin: 0 0 14px; color: var(--k-ink); }
.k-section strong { font-weight: 700; color: var(--k-ink); }

/* Callout */
.k-callout {
  border: 1px solid var(--k-line-strong);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 18px 0;
  background: var(--k-bg-soft);
}
.k-callout-info { background: var(--k-info-bg); border-color: var(--k-info-line); }
.k-callout-label {
  display: inline-block;
  font-weight: 800;
  font-size: 13px;
  color: var(--k-accent-deep);
  margin-bottom: 4px;
}
.k-callout p { margin: 0; font-size: 15px; }

/* Quote */
.k-quote {
  margin: 18px 0;
  padding: 14px 20px;
  border-inline-start: 4px solid var(--k-accent);
  background: var(--k-bg-soft);
  border-radius: 0 10px 10px 0;
  font-size: 19px;
  font-weight: 500;
  color: var(--k-ink);
}
.k-quote cite {
  display: block;
  font-size: 13.5px;
  font-style: normal;
  color: var(--k-ink-mute);
  font-weight: 400;
  margin-top: 6px;
}

/* Table */
.k-table-wrap { overflow-x: auto; margin: 16px 0; border: 1px solid var(--k-line); border-radius: 12px; }
.k-table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 520px; }
.k-table th, .k-table td { padding: 12px 16px; text-align: start; border-bottom: 1px solid var(--k-line); }
.k-table thead th {
  background: var(--k-bg-soft2);
  font-weight: 800;
  color: var(--k-ink);
  font-size: 13.5px;
}
.k-table tbody tr:last-child td { border-bottom: none; }
.k-table tbody tr:hover { background: var(--k-bg-soft); }
.k-table td:first-child { font-weight: 700; color: var(--k-accent-deep); }

/* Definition list */
.k-deflist { margin: 8px 0 0; }
.k-deflist dt {
  font-weight: 800;
  font-size: 17px;
  color: var(--k-ink);
  margin-top: 14px;
}
.k-deflist dt:first-child { margin-top: 0; }
.k-deflist dd {
  margin: 2px 0 0;
  padding-inline-start: 14px;
  border-inline-start: 2px solid var(--k-line-strong);
  color: var(--k-ink-soft);
  font-size: 15px;
}

/* Timeline */
.k-timeline { list-style: none; padding: 0; margin: 8px 0 0; }
.k-timeline li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--k-line-strong);
}
.k-timeline li:last-child { border-bottom: none; }
.k-tl-date { font-weight: 800; color: var(--k-accent-deep); font-size: 14.5px; }
.k-tl-text { color: var(--k-ink-soft); }

/* References */
.k-refs { margin: 8px 0 0; padding-inline-start: 22px; color: var(--k-ink-soft); font-size: 15px; }
.k-refs li { margin-bottom: 8px; }
.k-refs em { color: var(--k-ink); }

/* ===================== Right aside ===================== */
.k-aside {
  position: sticky;
  top: var(--k-header-h);
  align-self: start;
  height: calc(100vh - var(--k-header-h));
  overflow-y: auto;
  padding: 32px 18px 40px;
  border-inline-start: 1px solid var(--k-line);
}
.k-aside-title {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .6px;
  color: var(--k-ink-mute);
  margin: 0 0 10px;
}
.k-onthispage ul { list-style: none; padding: 0; margin: 0 0 26px; }
.k-onthispage a {
  display: block;
  padding: 5px 12px;
  font-size: 13.5px;
  color: var(--k-ink-soft);
  border-inline-start: 2px solid var(--k-line);
  transition: color .15s ease, border-color .15s ease;
}
.k-onthispage a:hover { color: var(--k-ink); text-decoration: none; }
.k-onthispage a.is-active {
  color: var(--k-accent-deep);
  border-inline-start-color: var(--k-accent);
  font-weight: 700;
}
.k-infobox {
  background: var(--k-bg-soft);
  border: 1px solid var(--k-line);
  border-radius: 12px;
  padding: 16px;
}
.k-infobox dl { margin: 0; }
.k-infobox dl > div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid var(--k-line);
  font-size: 13.5px;
}
.k-infobox dl > div:last-child { border-bottom: none; }
.k-infobox dt { color: var(--k-ink-mute); margin: 0; }
.k-infobox dd { margin: 0; font-weight: 700; color: var(--k-ink); }

/* ===================== Theme chooser (shared) ===================== */
.theme-chooser {
  position: fixed;
  bottom: 22px;
  inset-inline-start: 22px;
  z-index: 999;
  font-family: var(--k-font);
}
.chooser-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--k-accent);
  color: #fff;
  padding: 11px 18px;
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(75, 70, 196, .35);
  font-size: 14px;
  font-weight: 700;
  border: 1px solid var(--k-accent-deep);
  cursor: pointer;
  font-family: inherit;
  transition: background .18s ease, transform .18s ease, box-shadow .18s ease;
}
.chooser-toggle:hover { background: var(--k-accent-deep); transform: translateY(-2px); }
.chooser-icon { font-size: 16px; line-height: 1; color: #fff; }
.chooser-label { line-height: 1; }

.chooser-menu {
  list-style: none;
  padding: 8px;
  margin: 0;
  position: absolute;
  bottom: calc(100% + 10px);
  inset-inline-start: 0;
  min-width: 210px;
  background: #fff;
  border: 1px solid var(--k-line-strong);
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(30, 35, 48, .18);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.theme-chooser.is-open .chooser-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.chooser-menu li { margin: 0; }
.chooser-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--k-ink) !important;
  font-size: 14px;
  transition: background .14s ease;
}
.chooser-menu a:hover { background: var(--k-bg-soft); text-decoration: none; }
.chooser-menu a.is-active { background: var(--k-accent); color: #fff !important; font-weight: 700; pointer-events: none; }
.chooser-dot {
  display: inline-block;
  width: 12px; height: 12px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, .2);
  flex-shrink: 0;
}
.chooser-dot[data-tone="modern"]   { background: linear-gradient(135deg, #c9a961, #6b3410); }
.chooser-dot[data-tone="wiki"]     { background: linear-gradient(135deg, #cedff2, #0645ad); }
.chooser-dot[data-tone="heritage"] { background: linear-gradient(135deg, #b8864a, #6e1e1e); }
.chooser-dot[data-tone="gallery"]  { background: linear-gradient(135deg, #e6c878, #15100a); }
.chooser-dot[data-tone="portal"]   { background: linear-gradient(135deg, #11a195, #095a54); }
.chooser-dot[data-tone="magazine"] { background: linear-gradient(135deg, #8b1e1e, #1a1a18); }
.chooser-dot[data-tone="guide"]    { background: linear-gradient(135deg, #6e69e0, #3a35a3); }
.chooser-dot[data-tone="bento"]    { background: linear-gradient(135deg, #c89048, #2b2118); }
.chooser-dot[data-tone="platform"] { background: linear-gradient(135deg, #c2a04a, #16243a); }
.chooser-dot[data-tone="digest"]   { background: linear-gradient(135deg, #ac7a36, #34271a); }

/* الشعار الرسمي */
.k-logo-mark { width: 48px; height: 48px; background: url("images/logo.png") center/contain no-repeat; border-radius: 0; }
.k-logo-mark svg { display: none; }
.k-logo-text, .k-logo-sep, .k-logo-kicker { display: none; }

/* ====== صور المقالة ====== */
.k-figure { margin: 16px 0; }
.k-figure img { width: 100%; height: auto; max-height: 380px; object-fit: cover; border-radius: 12px; display: block; border: 1px solid var(--k-line); }
.k-figure figcaption { font-size: 13px; color: var(--k-ink-mute); padding-top: 8px; text-align: center; }
.k-figure-inline { float: inline-start; max-width: 280px; margin: 4px 0 12px; margin-inline-end: 20px; }
@media (max-width: 560px) { .k-figure-inline { float: none; max-width: 100%; margin-inline-end: 0; } }
.chooser-menu a.is-active .chooser-dot { border-color: #fff; }

/* ===================== Responsive ===================== */
@media (max-width: 1080px) {
  .k-layout { grid-template-columns: 230px minmax(0, 1fr); }
  .k-aside { display: none; }
}

@media (max-width: 780px) {
  .k-nav-toggle { display: inline-block; }
  .k-search { display: none; }
  .k-layout { grid-template-columns: 1fr; }
  .k-sidebar {
    position: fixed;
    top: var(--k-header-h);
    inset-inline-start: 0;
    width: 280px;
    max-width: 84vw;
    height: calc(100vh - var(--k-header-h));
    background: #fff;
    border-inline-end: 1px solid var(--k-line);
    box-shadow: 0 12px 40px rgba(30,35,48,.18);
    transform: translateX(-110%);
    transition: transform .25s ease;
    z-index: 40;
  }
  [dir="rtl"] .k-sidebar { transform: translateX(110%); }
  .k-sidebar.is-open { transform: translateX(0); }
  .k-article { max-width: none; padding: 24px 20px 70px; }

  .theme-chooser { bottom: 14px; inset-inline-start: 14px; }
  .chooser-label { display: none; }
  .chooser-toggle { padding: 10px 12px; }
}