/* freely — الألوان كرموز على :root، وتتبدل في الوضع الداكن */
:root {
  --bg: #f7f8f8;
  --fg: #1b1f1f;
  --muted: #5d6a68;
  --card: #ffffff;
  --line: #dfe5e4;
  --brand: #0f766e;
  --brand-fg: #ffffff;
  --accent-soft: #e6f2f0;
  --red: #dc2626;
  --yellow: #eab308;
  --green: #16a34a;
  --danger: #b91c1c;
  --warn-bg: #fff7e0;
  --warn-fg: #7a5200;
  --user-bubble: #dff1ee;
  --assistant-bubble: #ffffff;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1413;
    --fg: #e7eeec;
    --muted: #9bb0ab;
    --card: #17201e;
    --line: #2a3634;
    --brand: #2dd4bf;
    --brand-fg: #04211d;
    --accent-soft: #15302c;
    --warn-bg: #3a2e0c;
    --warn-fg: #f5d77a;
    --user-bubble: #173b36;
    --assistant-bubble: #17201e;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1413;
  --fg: #e7eeec;
  --muted: #9bb0ab;
  --card: #17201e;
  --line: #2a3634;
  --brand: #2dd4bf;
  --brand-fg: #04211d;
  --accent-soft: #15302c;
  --warn-bg: #3a2e0c;
  --warn-fg: #f5d77a;
  --user-bubble: #173b36;
  --assistant-bubble: #17201e;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, "Segoe UI", Tahoma, Arial, "Noto Naskh Arabic", sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}
h1, h2, h3 { margin: .4rem 0; line-height: 1.3; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.05rem; }
a { color: var(--brand); }
code, .mono { direction: ltr; unicode-bidi: embed; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.small-only { display: none; }
.error { color: var(--danger); }
.warnbox { background: var(--warn-bg); color: var(--warn-fg); padding: .6rem .8rem; border-radius: 10px; }

/* الشريط العلوي */
.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding: .6rem 1rem;
  background: var(--card); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 800; font-size: 1.25rem; color: var(--brand); letter-spacing: .5px; }
.tabs { display: flex; gap: .25rem; flex-wrap: wrap; }
.tab {
  border: 0; background: transparent; color: var(--muted);
  padding: .45rem .8rem; border-radius: 999px; cursor: pointer; font: inherit;
}
.tab.active { background: var(--accent-soft); color: var(--brand); font-weight: 700; }

main { padding: 1rem; max-width: 1200px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

/* إشعار */
.notice {
  position: fixed; bottom: 1rem; inset-inline: 1rem; z-index: 20;
  max-width: 560px; margin-inline: auto;
  background: var(--fg); color: var(--bg);
  padding: .7rem 1rem; border-radius: 12px; box-shadow: 0 8px 24px rgba(0,0,0,.2);
}

/* أزرار وعناصر */
button, select, input, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { opacity: .5; cursor: not-allowed; }
.primary, .ghost, .danger, .chip {
  border-radius: 10px; padding: .5rem .9rem; border: 1px solid var(--line);
  background: var(--card); color: var(--fg);
}
.primary { background: var(--brand); color: var(--brand-fg); border-color: var(--brand); font-weight: 700; }
.ghost { background: transparent; }
.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.wide { width: 100%; }
.chip { border-radius: 999px; padding: .35rem .8rem; font-size: .9rem; }
.chip.active { background: var(--accent-soft); color: var(--brand); border-color: var(--brand); font-weight: 700; }
.chip small.soon { color: var(--warn-fg); }
.row { display: flex; gap: .6rem; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.grow { flex: 1; text-align: start; }
input[type="search"], select, textarea {
  border: 1px solid var(--line); background: var(--card); color: var(--fg);
  border-radius: 10px; padding: .55rem .75rem; min-width: 0;
}
input[type="search"] { width: 100%; }
label.check { display: inline-flex; gap: .4rem; align-items: center; }

/* النقاط الملونة */
.dot {
  display: inline-block; width: .85em; height: .85em; border-radius: 50%;
  vertical-align: -.1em; margin-inline-end: .3rem;
}
.dot.red { background: var(--red); }
.dot.yellow { background: var(--yellow); }
.dot.green { background: var(--green); }

.badge {
  display: inline-block; font-size: .78rem; padding: .05rem .5rem; border-radius: 999px;
  background: var(--accent-soft); color: var(--brand);
}
.badge.warn { background: var(--warn-bg); color: var(--warn-fg); }

/* بطاقات */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 1rem; margin-bottom: 1rem;
}
.grid-cards { display: grid; gap: .75rem; grid-template-columns: 1fr; }
.card.model { text-align: start; color: inherit; font: inherit; width: 100%; }
.model-id { font-weight: 700; direction: ltr; text-align: start; word-break: break-all; }
.meta { display: flex; gap: .6rem; flex-wrap: wrap; color: var(--muted); font-size: .88rem; align-items: center; }

/* النماذج */
.toolbar { display: grid; gap: .6rem; margin-bottom: .5rem; }
.models-layout { display: grid; gap: 1rem; grid-template-columns: 1fr; }
.detail {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 1rem; position: relative;
}
table.grid { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.grid th, table.grid td { border-bottom: 1px solid var(--line); padding: .5rem .4rem; text-align: start; vertical-align: middle; }
table.grid td { cursor: pointer; }
table.grid td.sel { background: var(--accent-soft); }
ul.reasons { color: var(--muted); padding-inline-start: 1.2rem; font-size: .92rem; }

/* المحادثة */
.chat-layout { display: grid; gap: 1rem; grid-template-columns: 1fr; }
.chat-aside {
  display: none; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: .8rem;
}
.chat-aside.open { display: block; position: fixed; inset: 0; z-index: 15; border-radius: 0; overflow-y: auto; }
.chat-aside h3 { margin-top: 1rem; font-size: .95rem; color: var(--muted); }
.chat-item { display: flex; gap: .3rem; align-items: center; border-radius: 10px; }
.chat-item.active { background: var(--accent-soft); }
.chat-item button.ghost { padding: .45rem .5rem; }
.chat-main { display: flex; flex-direction: column; min-height: 70vh; }
.chat-head { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; margin-bottom: .6rem; }
.model-chip { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; font-size: .92rem; min-width: 0; }
.model-chip > span { overflow-wrap: anywhere; }
.messages {
  flex: 1; overflow-y: auto; padding: .4rem; display: flex; flex-direction: column; gap: .7rem;
  min-height: 45vh; max-height: 62vh;
}
.msg { display: flex; flex-direction: column; max-width: 92%; }
.msg.user { align-self: flex-start; }
.msg.assistant { align-self: flex-end; }
.bubble {
  white-space: pre-wrap; word-break: break-word; border-radius: 14px; padding: .65rem .9rem;
  border: 1px solid var(--line);
}
.msg.user .bubble { background: var(--user-bubble); }
.msg.assistant .bubble { background: var(--assistant-bubble); }
.bubble.error { border-color: var(--danger); color: var(--danger); }
.stats { font-size: .8rem; color: var(--muted); margin-top: .2rem; }
details.think { margin-bottom: .3rem; color: var(--muted); font-size: .9rem; }
.think-body { white-space: pre-wrap; padding: .4rem .6rem; border-inline-start: 3px solid var(--line); }
.empty { text-align: center; padding: 2rem 1rem; }
.composer { display: grid; grid-template-columns: 1fr auto auto; gap: .5rem; margin-top: .6rem; align-items: end; }
.composer textarea { resize: vertical; min-height: 3.2rem; max-height: 40vh; }
.composer button { height: fit-content; }

/* الشاشات الواسعة: الحاسوب */
@media (min-width: 860px) {
  .models-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); align-items: start; }
  .detail { position: sticky; top: 4.5rem; max-height: calc(100vh - 6rem); overflow-y: auto; }
  .grid-cards { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
  .toolbar { grid-template-columns: 1fr; }
  .chat-layout { grid-template-columns: 260px minmax(0, 1fr); }
  .chat-aside { display: block; position: sticky; top: 4.5rem; max-height: calc(100vh - 6rem); overflow-y: auto; }
  .chat-aside.open { position: sticky; inset: auto; }
  .msg { max-width: 80%; }
  .small-only { display: none; }
}
/* الهاتف */
@media (max-width: 859px) {
  .small-only { display: inline-block; }
  .chat-aside.open { padding-top: 1rem; }
  .messages { max-height: 58vh; }
}
@media (max-width: 480px) {
  main { padding: 1rem; }
  .top { padding: .5rem .8rem; }
  .tab { padding: .4rem .6rem; font-size: .92rem; }
  .composer { grid-template-columns: 1fr; }
  .composer button { width: 100%; }
}