:root {
  /* chuqur, kinematik qora baza (A24-ta'sir) + iliq IUS brendi */
  --bg: #07060a;
  --bg-2: #0d0b12;
  --panel: #130f1b;
  --panel-2: #1b1626;
  --line: #231d30;
  --line-2: #352c47;
  --text: #f5f2fa;
  --text-2: #b7afc6;
  --muted: #837b93;
  /* premium yuzalar / hairline / glow — yangi tokenlar */
  --surface: rgba(26, 21, 36, 0.72);
  --surface-2: rgba(32, 25, 45, 0.82);
  --hair: rgba(255, 255, 255, 0.07);
  --hair-strong: rgba(255, 255, 255, 0.12);
  --shadow: 0 18px 50px -12px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 30px 80px -20px rgba(0, 0, 0, 0.8);
  /* Noodatiy IUS palitrasi: tangerin + magenta */
  --accent: #ff7a29;
  --accent-rgb: 255, 122, 41;
  --accent-2: #ff2e7e;
  --accent-2-rgb: 255, 46, 126;
  --accent-dim: #c8611c;
  --accent-bg: rgba(var(--accent-rgb), 0.09);
  --on-accent: #1c0d00;
  --grad: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
  --glow: radial-gradient(60% 60% at 50% 0%, rgba(var(--accent-rgb), .18), transparent 70%);
  --amber: #f2b33d;
  --amber-bg: rgba(242, 179, 61, 0.08);
  --red: #ff5366;
  --red-bg: rgba(255, 83, 102, 0.08);
  --blue: #c08bff;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --sans: "IBM Plex Sans", -apple-system, "Segoe UI", Roboto, sans-serif;
  --topbar: 72px;
  --radius: 9px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, kbd, pre, .mono { font-family: var(--mono); }
::selection { background: rgba(var(--accent-rgb), 0.25); }

/* ------------------------------------------------------------ topbar */
/* --- suzuvchi (floating pill) nav-bar --- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  min-height: var(--topbar);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px;
  padding: 14px 20px;
  background: transparent;
  transition: padding .22s ease;
}
/* umumiy kapsula uslubi */
.brand, .navpill, .admin-menu > summary, .userpill {
  background: linear-gradient(180deg, rgba(22,18,30,.72), rgba(14,11,20,.62));
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--hair);
  border-radius: 999px;
  box-shadow: 0 10px 34px rgba(0,0,0,.38), inset 0 1px 0 rgba(255,255,255,.05);
}
.topbar.scrolled { padding: 8px 20px; }
.topbar.scrolled .brand, .topbar.scrolled .navpill,
.topbar.scrolled .admin-menu > summary, .topbar.scrolled .userpill {
  box-shadow: 0 8px 24px rgba(0,0,0,.45);
}

.brand {
  justify-self: start;
  font-family: var(--mono); font-weight: 700; font-size: 14px;
  letter-spacing: .04em; color: var(--text);
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px 7px 8px;
}
.brand:hover { text-decoration: none; border-color: rgba(var(--accent-rgb), .4); }
.brand .mark {
  display: inline-grid; place-items: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--grad); color: var(--on-accent); font-size: 12px;
  font-weight: 800; box-shadow: 0 0 18px rgba(var(--accent-rgb), .5);
}
.brand .brand-txt { display: inline-flex; align-items: baseline; gap: 6px; }
.brand small { color: var(--muted); font-weight: 400; }
.brand .byline { font: 500 11px var(--mono); color: var(--muted); margin-left: 4px;
  padding-left: 10px; border-left: 1px solid var(--hair); }
.brand .byline b { color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; font-weight: 700; }

.navpill { justify-self: center; display: flex; align-items: center; gap: 4px; padding: 6px; }
.navpill a {
  color: var(--text-2); font-size: 14px; font-weight: 500;
  padding: 8px 17px; border-radius: 999px;
  transition: color .18s, background .18s, box-shadow .18s;
}
.navpill a:hover { color: var(--text); background: rgba(255,255,255,.06); text-decoration: none; }
.navpill a.active {
  color: #fff; background: var(--grad);
  box-shadow: 0 4px 16px rgba(var(--accent-rgb), .42);
}

.topactions { justify-self: end; display: flex; align-items: center; gap: 12px; }
.admin-menu { position: relative; }
.admin-menu > summary {
  list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 15px; font-size: 14px; color: var(--text-2);
}
.admin-menu > summary::-webkit-details-marker { display: none; }
.admin-menu > summary:hover, .admin-menu[open] > summary { color: var(--text); border-color: rgba(var(--accent-rgb), .45); }
.admin-menu .chev { font-size: 11px; opacity: .7; transition: transform .2s; }
.admin-menu[open] .chev { transform: rotate(180deg); }
.admin-pop {
  position: absolute; right: 0; top: calc(100% + 10px); min-width: 230px;
  display: flex; flex-direction: column; gap: 2px; padding: 8px;
  background: linear-gradient(180deg, rgba(20,16,28,.98), rgba(14,11,20,.98));
  backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
  border: 1px solid var(--hair); border-radius: 18px;
  box-shadow: 0 24px 60px rgba(0,0,0,.55); z-index: 60;
  animation: pop-in .16s ease;
}
@keyframes pop-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.admin-pop a {
  padding: 10px 14px; border-radius: 11px; color: var(--text-2); font-size: 14px;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.admin-pop a:hover { background: rgba(255,255,255,.06); color: var(--text); text-decoration: none; }
.admin-pop a.active { color: #fff; background: rgba(var(--accent-rgb), .16); }

.userpill { display: inline-flex; align-items: center; gap: 10px; padding: 5px 6px 5px 15px; font-size: 13px; color: var(--text-2); }
.userpill .who { font-family: var(--mono); max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.userpill form { margin: 0; }

/* ------------------------------------------------------------ buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 34px; padding: 0 14px;
  font: 500 13px/1 var(--sans);
  color: var(--text); background: var(--panel-2);
  border: 1px solid var(--line-2); border-radius: var(--radius);
  cursor: pointer; white-space: nowrap;
  transition: border-color .12s, background .12s, color .12s;
}
.btn:hover { border-color: var(--muted); text-decoration: none; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn svg { width: 14px; height: 14px; flex: none; }
.btn-primary { background: var(--grad); border-color: transparent; color: var(--on-accent); font-weight: 700; box-shadow: 0 2px 16px rgba(var(--accent-rgb), .28); }
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 2px 22px rgba(var(--accent-rgb), .42); }
.btn-danger { color: var(--red); border-color: rgba(255,83,102,.35); background: transparent; }
.btn-danger:hover { background: var(--red-bg); border-color: var(--red); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--panel-2); border-color: var(--line); color: var(--text); }
.btn-sm { height: 28px; padding: 0 10px; font-size: 12px; }
.btn-lg { height: 42px; padding: 0 20px; font-size: 14px; }

/* ------------------------------------------------------------ layout */
.wrap { max-width: 1180px; margin: 0 auto; padding: 32px 24px 80px; }
.layout {
  display: grid; grid-template-columns: 260px minmax(0, 1fr);
  min-height: calc(100vh - var(--topbar));
}
.sidebar {
  border-right: 1px solid var(--line);
  background: var(--bg-2);
  padding: 20px 0;
  position: sticky; top: var(--topbar);
  height: calc(100vh - var(--topbar)); overflow-y: auto;
}
.sidebar h4 {
  margin: 0 20px 10px; font: 600 11px/1 var(--mono);
  color: var(--muted); text-transform: uppercase; letter-spacing: .1em;
}
.sidebar .mod { margin-bottom: 18px; }
.sidebar .mod-title { padding: 6px 20px; font-size: 13px; font-weight: 600; color: var(--text); }
.sidebar .mod-title span { color: var(--muted); font-family: var(--mono); margin-right: 6px; }
.sidebar a.sec {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 20px 7px 28px; font-size: 13px; color: var(--text-2);
  border-left: 2px solid transparent;
}
.sidebar a.sec:hover { background: var(--panel); color: var(--text); text-decoration: none; }
.sidebar a.sec.active { border-left-color: var(--accent); background: var(--panel); color: var(--text); }
.sidebar a.sec .n { font-family: var(--mono); font-size: 12px; color: var(--muted); width: 26px; }
.sidebar a.sec .p { margin-left: auto; font: 11px var(--mono); color: var(--muted); }
.sidebar a.sec .p.done { color: var(--accent); }
.main { min-width: 0; padding: 36px 48px 140px; max-width: 980px; transition: max-width .25s ease, padding .25s ease; }

/* ------------------------------------------------------------ sylabus (sidebar) yopish/ochish */
.layout.nosb { grid-template-columns: minmax(0, 1fr); }
.layout.nosb .sidebar { display: none; }
/* sylabus yopilganda kontent butun bo'sh joyni egallaydi — markazda, keng, siqilmagan */
.layout.nosb .main { width: 100%; max-width: 1080px; margin-inline: auto; padding-left: 56px; padding-right: 56px; }
/* kodblok, jadval, lab paneli kengaygan joyga to'liq yoyiladi */
.layout.nosb .article table,
.layout.nosb .term,
.layout.nosb .exercise { width: 100%; }
@media (min-width: 1500px) {
  .layout.nosb .main { max-width: 1180px; }
}
/* modullar (grid) sahifasi: sylabus yopilganda kartalar butun bo'sh joyni egallaydi */
.layout.nosb .main.main-wide { max-width: none; margin-inline: 0; padding-left: 48px; padding-right: 48px; }
.layout.nosb .main.main-wide .module-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.sb-toggle {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px;
  height: 32px; padding: 0 12px; cursor: pointer;
  font: 600 12px var(--mono); color: var(--text-2);
  background: var(--panel-2); border: 1px solid var(--line-2); border-radius: 999px;
  transition: border-color .12s, color .12s, background .12s;
}
.sb-toggle:hover { color: var(--text); border-color: var(--muted); }
.sb-toggle .ico { font-size: 13px; line-height: 1; color: var(--accent); }

/* ------------------------------------------------------------ flash/auth */
.flash {
  margin-bottom: 16px; padding: 10px 14px; font-size: 14px;
  border: 1px solid rgba(255,95,86,.35); background: var(--red-bg); color: #ffb3ae; border-radius: var(--radius);
}
.flash.ok { border-color: rgba(var(--accent-rgb),.35); background: var(--accent-bg); color: var(--accent); }
.auth {
  min-height: 100vh; display: grid; grid-template-columns: 1.05fr 1fr;
}
.auth-side {
  position: relative; overflow: hidden;
  border-right: 1px solid var(--line);
  background:
    radial-gradient(900px 500px at 12% -10%, rgba(var(--accent-rgb), .16), transparent 60%),
    radial-gradient(760px 480px at 108% 118%, rgba(var(--accent-2-rgb), .18), transparent 60%),
    linear-gradient(160deg, #0b0910 0%, #140e1d 100%);
  padding: 56px; display: flex; flex-direction: column; justify-content: space-between; gap: 28px;
}
/* texturalar: to'r + skanerlash chizig'i */
.auth-side .grid-fx {
  position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(var(--accent-rgb), .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--accent-rgb), .05) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(120% 120% at 20% 0%, #000 35%, transparent 80%);
}
.auth-side .scan-fx {
  position: absolute; left: 0; right: 0; height: 180px; pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(var(--accent-rgb), .07), transparent);
  animation: scan 6.5s linear infinite;
}
@keyframes scan { 0% { top: -180px; } 100% { top: 100%; } }
.auth-side > * { position: relative; z-index: 1; }
.brand.big { font-size: 30px; letter-spacing: .02em; }
.brand.big .mark { width: 40px; height: 40px; font-size: 18px; border-radius: 10px; }
.brand.big small { font-size: 12px; align-self: flex-end; margin-bottom: 5px; letter-spacing: .14em; text-transform: uppercase; }
.auth-side .tagline {
  margin-top: -16px; font: 600 13px/1.5 var(--mono); letter-spacing: .04em;
  color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text;
}
.auth-side pre.boot {
  margin: 0; font-size: 12.5px; line-height: 1.85; color: var(--text-2);
  padding: 16px 18px; border: 1px solid var(--line);
  background: rgba(0, 0, 0, .3); border-radius: 10px;
  box-shadow: inset 0 0 40px rgba(var(--accent-rgb), .04);
}
.auth-side pre.boot .c { color: var(--muted); }
.auth-side pre.boot .g { color: var(--muted); }
.auth-side pre.boot .ok { color: var(--accent); font-weight: 700; }
.auth-side pre.boot .p { color: var(--accent-2); font-weight: 600; }
.auth-side pre.boot .d { color: var(--text-2); }
.auth-side pre.boot .cur { color: var(--accent); animation: blink 1.05s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.side-feats { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.side-feats li {
  font-size: 13px; color: var(--text-2); padding-left: 18px; position: relative;
}
.side-feats li::before {
  content: "▸"; position: absolute; left: 0; color: var(--accent); font-size: 11px; top: 3px;
}
.side-feats li b { color: var(--text); font-family: var(--mono); font-weight: 700; }
.auth-side .foot { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; font-family: var(--mono); }
.auth-side .foot .live {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 rgba(var(--accent-rgb), .6); animation: pulse 2s infinite;
}
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), .55); } 70% { box-shadow: 0 0 0 7px rgba(var(--accent-rgb), 0); } 100% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0); } }
.auth-form { display: grid; place-items: center; padding: 40px 24px; }
.auth-form form { width: 100%; max-width: 360px; }
.auth-form h1 { font-size: 22px; margin: 0 0 6px; }
.auth-form p.sub { color: var(--muted); margin: 0 0 28px; font-size: 14px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 12px; color: var(--text-2); margin-bottom: 6px; font-weight: 500; }
.input {
  width: 100%; height: 40px; padding: 0 12px;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--line-2); border-radius: var(--radius);
  font: 14px var(--mono);
}
.input:focus { outline: none; border-color: var(--accent-dim); box-shadow: 0 0 0 3px rgba(var(--accent-rgb),.08); }
.auth-form .btn { width: 100%; justify-content: center; height: 40px; margin-top: 6px; }
.auth-form .switch { margin-top: 18px; font-size: 13px; color: var(--muted); text-align: center; }

/* ------------------------------------------------------------ dashboard */
.page-head { margin-bottom: 32px; }
.eyebrow {
  font: 600 11px/1 var(--mono); color: var(--accent);
  text-transform: uppercase; letter-spacing: .14em; margin-bottom: 12px;
}
.page-head h1 { margin: 0 0 8px; font-size: 28px; font-weight: 600; letter-spacing: -.01em; }
.page-head p { margin: 0; color: var(--text-2); max-width: 720px; }

.module-row {
  display: grid; grid-template-columns: 72px 1fr 220px;
  border: 1px solid var(--line); background: var(--panel); border-radius: var(--radius);
  margin-bottom: 14px;
}
.module-row .num {
  display: grid; place-items: center; border-right: 1px solid var(--line);
  font: 700 22px var(--mono); color: var(--muted);
}
.module-row .body { padding: 18px 22px; }
.module-row h3 { margin: 0 0 4px; font-size: 17px; }
.module-row .body p { margin: 0 0 12px; color: var(--text-2); font-size: 14px; }
.module-row .secs { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 10px; font-size: 12px; color: var(--text-2);
  border: 1px solid var(--line-2); border-radius: 999px;
}
.chip:hover { color: var(--text); border-color: var(--muted); text-decoration: none; }
.chip .n { font-family: var(--mono); color: var(--muted); }
.module-row .meta {
  border-left: 1px solid var(--line); padding: 18px 22px;
  display: flex; flex-direction: column; justify-content: center; gap: 8px;
  font-size: 12px; color: var(--muted); font-family: var(--mono);
}
.bar { height: 4px; background: var(--line); border-radius: 2px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--accent); }

/* ------------------------------------------------------------ modul kartalari (grid) */
.module-grid {
  display: grid; gap: 14px; margin-bottom: 30px;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}
.mod-card {
  position: relative; overflow: hidden;
  display: flex; flex-direction: column; gap: 9px;
  min-height: 176px; padding: 18px 18px 16px;
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--panel); color: var(--text);
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.mod-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px;
  background: var(--grad); opacity: 0; transition: opacity .15s;
}
a.mod-card:hover {
  border-color: var(--accent-dim); transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .38); text-decoration: none;
}
a.mod-card:hover::before { opacity: 1; }
.mc-top { display: flex; align-items: center; justify-content: space-between; }
.mc-num {
  display: inline-grid; place-items: center; min-width: 42px; height: 30px; padding: 0 9px;
  border-radius: 8px; font: 700 15px var(--mono); letter-spacing: .02em;
  color: var(--muted); background: var(--panel-2); border: 1px solid var(--line);
}
.mc-num.grad { color: var(--on-accent); background: var(--grad); border-color: transparent;
  box-shadow: 0 2px 12px rgba(var(--accent-rgb), .3); }
.mc-pct { font: 700 13px var(--mono); color: var(--muted); }
.mc-pct.full { color: var(--accent); }
.mc-title { margin: 2px 0 0; font-size: 16px; line-height: 1.3; }
.mc-sum {
  margin: 0; color: var(--text-2); font-size: 13px; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.mc-bar { height: 5px; margin-top: auto; border-radius: 3px; background: var(--line); overflow: hidden; }
.mc-bar > i { display: block; height: 100%; border-radius: 3px; background: var(--grad); transition: width .6s ease; }
.mc-foot { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; font: 500 12px var(--mono); color: var(--muted); }
.mc-foot .mc-dot { color: var(--line-2); }
.mc-go { margin-left: auto; color: var(--accent); font-weight: 600; opacity: 0; transform: translateX(-4px); transition: opacity .15s, transform .15s; }
a.mod-card:hover .mc-go { opacity: 1; transform: none; }
.mc-tag {
  padding: 2px 8px; border-radius: 999px; font: 600 10px/1.5 var(--mono); letter-spacing: .04em;
  color: var(--accent); background: var(--accent-bg); border: 1px solid var(--accent-dim);
}
.mc-tag.lock { color: var(--red); background: rgba(255, 83, 102, .12); border-color: rgba(255, 83, 102, .35); }
/* "tez orada" modul kartasi */
.mod-card.soon { border-style: dashed; min-height: 150px; opacity: .66; }
.mod-card.soon:hover { opacity: .82; }
.mod-card.soon .mc-num { color: var(--line-2); }
.mc-status.soon {
  font: 600 10px/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--on-accent); background: var(--grad); padding: 2px 9px; border-radius: 999px;
}
.mc-foot.soon { margin-top: auto; color: var(--muted); }
.section-title .st-count {
  font: 600 11px var(--mono); color: var(--muted);
  padding: 1px 8px; border: 1px solid var(--line-2); border-radius: 999px;
}

/* ------------------------------------------------------------ yo'nalish (path) kartalari */
.path-grid {
  display: grid; gap: 16px; margin-bottom: 30px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 440px), 1fr));
}
.path-card {
  position: relative; overflow: hidden; display: flex;
  border: 1px solid var(--line); border-radius: 14px; background: var(--panel); color: var(--text);
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.path-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--grad); }
.path-card:hover { border-color: var(--accent-dim); transform: translateY(-2px); box-shadow: 0 14px 36px rgba(0, 0, 0, .4); text-decoration: none; }
.pc-side {
  flex: none; width: 120px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  padding: 22px 12px; border-right: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(var(--accent-rgb), .09), rgba(var(--accent-2-rgb), .09));
}
.pc-code { font: 800 22px var(--mono); letter-spacing: .04em; color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; }
.pc-ring { font: 700 13px var(--mono); color: var(--muted); padding: 2px 11px; border: 1px solid var(--line-2); border-radius: 999px; }
.pc-ring.full { color: var(--accent); border-color: var(--accent-dim); }
.pc-body { flex: 1; min-width: 0; padding: 18px 20px; display: flex; flex-direction: column; gap: 8px; }
.pc-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.pc-top h3 { margin: 0; font-size: 18px; }
.pc-badge { flex: none; padding: 3px 10px; border-radius: 999px; font: 600 11px var(--mono); }
.pc-badge.open { color: var(--accent); background: var(--accent-bg); border: 1px solid var(--accent-dim); }
.pc-badge.lock { color: var(--red); background: rgba(255, 83, 102, .12); border: 1px solid rgba(255, 83, 102, .35); }
.pc-sub { margin: 0; color: var(--text); font-size: 13px; font-weight: 600; }
.pc-sum {
  margin: 0; color: var(--text-2); font-size: 13px; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.pc-bar { height: 6px; margin-top: 4px; border-radius: 3px; background: var(--line); overflow: hidden; }
.pc-bar > i { display: block; height: 100%; border-radius: 3px; background: var(--grad); transition: width .6s ease; }
.pc-foot { display: flex; align-items: center; gap: 8px; font: 500 12px var(--mono); color: var(--muted); }
.pc-go { margin-left: auto; color: var(--accent); font-weight: 700; }

/* yon paneldagi yo'nalish sarlavhasi */
.side-path { display: flex; flex-direction: column; gap: 3px; padding: 2px 20px 12px; margin-bottom: 8px; border-bottom: 1px solid var(--line); }
.side-path .sp-code { font: 800 16px var(--mono); color: var(--text); letter-spacing: .04em; }
.side-path .sp-code:hover { color: var(--accent); text-decoration: none; }
.side-path .sp-all { font: 11px var(--mono); color: var(--muted); }
.side-path .sp-all:hover { color: var(--accent); }

.section-title {
  display: flex; align-items: baseline; gap: 12px;
  margin: 40px 0 14px; font: 600 12px/1 var(--mono);
  text-transform: uppercase; letter-spacing: .12em; color: var(--muted);
}
.section-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }

table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th {
  text-align: left; font: 600 11px var(--mono); color: var(--muted); text-transform: uppercase;
  letter-spacing: .08em; padding: 10px 12px; border-bottom: 1px solid var(--line);
}
table.data td { padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.data td.mono, table.data td code { font-family: var(--mono); font-size: 12px; }
table.data tr:hover td { background: var(--panel); }
.empty { color: var(--muted); font-size: 14px; padding: 16px 0; }

/* ------------------------------------------------------------ article */
.crumbs { font: 12px var(--mono); color: var(--muted); margin-bottom: 14px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--text); }
.article h1 { font-size: 30px; margin: 0 0 4px; font-weight: 600; letter-spacing: -.01em; }
.article .subtitle { color: var(--text-2); margin: 0 0 28px; font-size: 16px; }
.article h2 {
  font-size: 20px; margin: 44px 0 12px; padding-top: 22px; border-top: 1px solid var(--line); font-weight: 600;
}
.article h3 { font-size: 16px; margin: 28px 0 8px; font-weight: 600; }
.article p, .article li { color: var(--text-2); }
.article p strong, .article li strong { color: var(--text); }
.article ul, .article ol { padding-left: 22px; }
.article li { margin: 4px 0; }
.article :not(pre) > code {
  font-size: 13px; padding: 1px 6px; border-radius: 3px;
  background: var(--panel-2); border: 1px solid var(--line); color: #e6edf3;
}
.article table { width: 100%; border-collapse: collapse; margin: 16px 0 20px; font-size: 14px; }
.article table th {
  text-align: left; padding: 9px 12px; background: var(--panel); border: 1px solid var(--line);
  font: 600 12px var(--mono); color: var(--text-2);
}
.article table td { padding: 9px 12px; border: 1px solid var(--line); color: var(--text-2); vertical-align: top; }
.article table td:first-child { white-space: nowrap; }
.article table td code { white-space: nowrap; }

.term {
  margin: 14px 0 22px; border: 1px solid var(--line); border-radius: var(--radius);
  background: #0a0c10; overflow: hidden;
}
.term .term-head {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 12px; border-bottom: 1px solid var(--line); background: var(--bg-2);
  font: 11px var(--mono); color: var(--muted);
}
.term .term-head .dots { display: flex; gap: 6px; margin-right: 6px; }
.term .term-head .dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); }
.term pre {
  margin: 0; padding: 14px 16px; overflow-x: auto;
  font-size: 13px; line-height: 1.55; color: #c9d1d9;
}
.term .pr { color: var(--accent); }
.term .cmd { color: #fff; }
.term .cm { color: var(--muted); }

.note {
  margin: 18px 0; padding: 12px 16px; font-size: 14px;
  border-left: 3px solid var(--blue); background: rgba(92,178,255,.06); color: var(--text-2);
}
.note.warn { border-left-color: var(--amber); background: var(--amber-bg); }
.note b { color: var(--text); }

/* ------------------------------------------------------------ lab panel */
.exercise { margin-top: 56px; border-top: 1px solid var(--line); padding-top: 28px; }
.exercise > h2 { border: none; margin: 0 0 6px; padding: 0; font-size: 22px; }
.exercise > .lead { color: var(--text-2); margin: 0 0 22px; }

.lab {
  border: 1px solid var(--line-2); border-radius: var(--radius);
  background: var(--panel); margin-bottom: 28px;
}
.lab-head {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px; border-bottom: 1px solid var(--line);
}
.lab-head .tag {
  font: 600 10px/1 var(--mono); letter-spacing: .14em; color: var(--muted);
  border: 1px solid var(--line-2); padding: 5px 7px; border-radius: 2px;
}
.lab-head .name { font-weight: 600; font-size: 14px; }
.lab-head .name small { display: block; color: var(--muted); font-weight: 400; font-size: 12px; font-family: var(--mono); }
.status {
  margin-left: auto; display: inline-flex; align-items: center; gap: 8px;
  font: 600 11px var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted);
}
.status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.status.on { color: var(--accent); }
.status.on .dot { background: var(--accent); box-shadow: 0 0 0 3px rgba(var(--accent-rgb),.15); }
.status.busy { color: var(--amber); }
.status.busy .dot { background: var(--amber); animation: blink 1s infinite; }
.status.err { color: var(--red); }
.status.err .dot { background: var(--red); }
@keyframes blink { 50% { opacity: .25; } }

.lab-body { padding: 18px; }
.lab-idle { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.lab-idle p { margin: 0; color: var(--text-2); font-size: 14px; max-width: 520px; }

.lab-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.kv { background: var(--bg-2); padding: 12px 14px; min-width: 0; }
.kv.wide { grid-column: span 2; }
.kv label {
  display: block; font: 600 10px var(--mono); color: var(--muted);
  text-transform: uppercase; letter-spacing: .12em; margin-bottom: 6px;
}
.kv .val { display: flex; align-items: center; gap: 8px; font: 14px var(--mono); color: var(--text); min-width: 0; }
.kv .val span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kv .val .copy, .kv .val .reveal {
  margin-left: auto; flex: none; background: none; border: 1px solid transparent; color: var(--muted);
  cursor: pointer; padding: 3px 6px; border-radius: 3px; font: 11px var(--mono);
}
.kv .val .reveal { margin-left: 0; }
.kv .val .copy:hover, .kv .val .reveal:hover { color: var(--text); border-color: var(--line-2); }
.kv .val .copy.done { color: var(--accent); }

.timer { display: flex; align-items: center; gap: 14px; }
.timer .clock { font: 600 22px var(--mono); letter-spacing: .02em; }
.timer .clock.low { color: var(--amber); }
.timer .clock.crit { color: var(--red); }
.timer .bar { flex: 1; }
.timer .bar > i { transition: width 1s linear; }
.timer .until { font: 11px var(--mono); color: var(--muted); }

.lab-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.lab-actions .sep { flex: 1; }

.deploy-log {
  margin: 0; padding: 12px 14px; background: #0a0c10; border: 1px solid var(--line);
  font: 12px/1.7 var(--mono); color: var(--text-2); max-height: 220px; overflow: auto; white-space: pre-wrap;
}
.deploy-log .ok { color: var(--accent); }
.deploy-log .err { color: var(--red); }
.deploy-log .warn { color: var(--amber); }
.deploy-log .cursor { display: inline-block; width: 7px; height: 13px; background: var(--text-2); vertical-align: -2px; animation: blink 1s steps(1) infinite; }

/* ------------------------------------------------------------ questions */
.q-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.q-head h3 { margin: 0; font-size: 16px; }
.q-head .count { margin-left: auto; font: 12px var(--mono); color: var(--muted); }
.q-head .count b { color: var(--accent); }
.question {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
  margin-bottom: 10px;
}
.question .qtop { display: flex; gap: 14px; padding: 14px 16px 10px; }
.question .qn {
  flex: none; width: 26px; height: 26px; display: grid; place-items: center;
  font: 600 12px var(--mono); color: var(--muted); border: 1px solid var(--line-2); border-radius: 50%;
}
.question.solved .qn { background: var(--accent); border-color: var(--accent); color: #0b1000; }
.question .qtext { color: var(--text); font-size: 14px; padding-top: 2px; }
.question .qform { display: flex; gap: 8px; padding: 0 16px 14px 56px; }
.question .qform .input { height: 36px; font-size: 13px; }
.question.solved .qform .input { border-color: rgba(var(--accent-rgb),.35); color: var(--accent); background: var(--accent-bg); }
.question .qmeta { display: flex; align-items: center; gap: 12px; padding: 0 16px 12px 56px; font-size: 12px; min-height: 18px; }
.question .result { font-family: var(--mono); }
.question .result.ok { color: var(--accent); }
.question .result.bad { color: var(--red); }
.question .hint-toggle {
  margin-left: auto; background: none; border: none; color: var(--muted); cursor: pointer;
  font: 12px var(--sans); padding: 0;
}
.question .hint-toggle:hover { color: var(--amber); }
.question .hint {
  display: none; margin: 0 16px 14px 56px; padding: 10px 12px; font-size: 13px;
  border-left: 2px solid var(--amber); background: var(--amber-bg); color: var(--text-2);
}
.question .hint.open { display: block; }
.shake { animation: shake .3s; }
@keyframes shake { 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

.pager { display: flex; justify-content: space-between; margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); }
.pager a { font-size: 14px; }
.pager a small { display: block; color: var(--muted); font: 11px var(--mono); }

/* ------------------------------------------------------------ terminal dock */
.dock {
  position: fixed; left: 260px; right: 0; bottom: 0; z-index: 40;
  height: 380px; display: none; flex-direction: column;
  background: #0a0c10; border-top: 1px solid var(--line-2);
  box-shadow: 0 -12px 30px rgba(0,0,0,.35);
}
.dock.open { display: flex; }
.dock.min { height: 36px !important; }
.dock.min .dock-term { display: none; }
.dock-grip { position: absolute; top: -4px; left: 0; right: 0; height: 8px; cursor: ns-resize; }
.dock-head {
  flex: none; height: 36px; display: flex; align-items: center; gap: 10px;
  padding: 0 8px 0 14px; border-bottom: 1px solid var(--line); background: var(--bg-2);
  font: 12px var(--mono); color: var(--text-2);
}
.dock-head .conn { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.dock-head .conn.on { background: var(--accent); }
.dock-head .spacer { flex: 1; }
.dock-term { flex: 1; min-height: 0; padding: 6px 0 0 10px; }
.term-page { height: calc(100vh - var(--topbar)); padding: 8px 0 0 12px; background: #0a0c10; }

.toast {
  position: fixed; right: 20px; bottom: 20px; z-index: 100;
  padding: 10px 14px; font-size: 13px; border-radius: var(--radius);
  background: var(--panel-2); border: 1px solid var(--line-2); color: var(--text);
  transform: translateY(20px); opacity: 0; transition: all .2s; pointer-events: none;
}
.toast.show { transform: none; opacity: 1; }
.toast.err { border-color: rgba(255,95,86,.5); color: #ffb3ae; }

.badge { display: inline-block; padding: 2px 7px; font: 600 10px var(--mono); border-radius: 2px; letter-spacing: .06em; }
.badge.ok { background: var(--accent-bg); color: var(--accent); }
.badge.bad { background: var(--red-bg); color: var(--red); }
.badge.mut { background: var(--panel-2); color: var(--muted); }

.cell-dot { display: inline-block; width: 10px; height: 10px; border-radius: 2px; background: var(--line); margin-right: 2px; }
.cell-dot.on { background: var(--accent); }

@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .main { padding: 24px 16px 140px; }
  .dock { left: 0; }
  .module-row { grid-template-columns: 1fr; }
  .module-row .num, .module-row .meta { border: none; }
  .module-row .num { justify-items: start; padding: 16px 22px 0; }
  .lab-grid { grid-template-columns: 1fr; }
  .kv.wide { grid-column: auto; }
  .auth { grid-template-columns: 1fr; }
  .auth-side { display: none; }
  .question .qform, .question .qmeta { padding-left: 16px; }
  .question .hint { margin-left: 16px; }
}
/* suzuvchi nav-bar — mobil */
@media (max-width: 720px) {
  .topbar { padding: 10px 12px; gap: 10px; grid-template-columns: auto 1fr auto; }
  .brand .brand-txt, .brand .byline { display: none; }
  .brand { padding: 6px; }
  .navpill { justify-self: center; overflow-x: auto; max-width: 100%; -ms-overflow-style: none; scrollbar-width: none; }
  .navpill::-webkit-scrollbar { display: none; }
  .navpill a { padding: 7px 13px; font-size: 13px; }
  .userpill .who { display: none; }
  .userpill { padding: 4px; }
}

/* ------------------------------------------------------------ auth flow */
.flash.warn { border-color: rgba(242,179,61,.4); background: var(--amber-bg); color: #ffd590; }
.flash code, .flash a { color: inherit; }
.flash a { text-decoration: underline; }
.form-box { width: 100%; max-width: 380px; }
.form-box h1 { font-size: 22px; margin: 0 0 6px; }
.form-box p.sub { color: var(--text-2); margin: 0 0 24px; font-size: 14px; }
.form-box .btn { justify-content: center; }
.form-box form .btn { width: 100%; height: 40px; margin-top: 6px; }
.help { margin-top: 6px; font-size: 12px; color: var(--muted); }
.code-input { height: 52px; font-size: 26px; letter-spacing: .45em; text-align: center; }
.linkish { background: none; border: none; padding: 0; color: var(--accent); font: inherit; cursor: pointer; }
.linkish:hover { text-decoration: underline; }
.steps {
  list-style: none; margin: 0 0 22px; padding: 0; display: flex; gap: 6px;
  font: 11px var(--mono); color: var(--muted); counter-reset: st;
}
.steps li { flex: 1; padding-top: 8px; border-top: 2px solid var(--line-2); counter-increment: st; }
.steps li::before { content: counter(st) ". "; }
.steps li.on { border-color: var(--amber); color: var(--amber); }
.steps li.done { border-color: var(--accent); color: var(--accent); }
.steps li.bad { border-color: var(--red); color: var(--red); }

/* ------------------------------------------------------------ admin */
.nbadge {
  display: inline-grid; place-items: center; min-width: 18px; height: 18px; padding: 0 5px; margin-left: 4px;
  border-radius: 9px; background: var(--amber); color: #1a1200; font: 700 11px var(--mono); vertical-align: 1px;
}
.nbadge[hidden] { display: none; }
.badge.warn { background: var(--amber-bg); color: var(--amber); }
.sub-mono { font: 12px var(--mono); color: var(--muted); }
.muted { color: var(--muted); font-size: 12px; }
td.actions { text-align: right; white-space: nowrap; }
td.actions form { display: inline-flex; gap: 6px; margin: 0; }
.inline-form { display: inline-flex; gap: 6px; margin: 0 0 0 12px; vertical-align: middle; }
.input-sm { height: 28px; font-size: 12px; width: 200px; }
details.panel {
  border: 1px solid var(--line); background: var(--panel); border-radius: var(--radius); margin-bottom: 22px;
}
details.panel > summary { padding: 12px 16px; cursor: pointer; font-weight: 600; font-size: 14px; list-style: none; }
details.panel > summary::-webkit-details-marker { display: none; }
details.panel[open] > summary { border-bottom: 1px solid var(--line); }
.grid-form { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 16px; padding: 16px; align-items: end; }
.grid-form .checks { grid-column: span 2; display: flex; gap: 20px; font-size: 13px; color: var(--text-2); }
.grid-form .checks label { display: flex; align-items: center; gap: 8px; margin: 0; font-weight: 400; }
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 4px; flex-wrap: wrap; }
.tabs a { padding: 8px 14px; font-size: 13px; color: var(--text-2); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a:hover { color: var(--text); text-decoration: none; }
.tabs a.on { color: var(--text); border-bottom-color: var(--accent); }
.tabs a span { font: 11px var(--mono); color: var(--muted); margin-left: 4px; }
details.menu { display: inline-block; position: relative; vertical-align: middle; }
details.menu > summary { list-style: none; }
details.menu > summary::-webkit-details-marker { display: none; }
.menu-body {
  position: absolute; right: 0; top: 32px; z-index: 20; display: grid; gap: 10px; padding: 12px;
  background: var(--panel-2); border: 1px solid var(--line-2); border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0,0,0,.4);
}
.menu-body form { display: flex !important; gap: 6px; }

@media (max-width: 960px) {
  .grid-form { grid-template-columns: 1fr; }
  .grid-form .checks { grid-column: auto; flex-direction: column; gap: 8px; }
  .inline-form { display: flex; margin: 8px 0 0; }
}

/* ------------------------------------------------------------ theory (markdown) */
.figure { margin: 20px 0 24px; }
.figure img {
  display: block; max-width: 100%; height: auto;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2);
}
.article .note p { margin: 0; color: inherit; }
.chip.lab::after {
  content: "LAB"; font: 600 9px var(--mono); letter-spacing: .08em;
  color: var(--accent); border: 1px solid rgba(var(--accent-rgb),.35); border-radius: 2px; padding: 1px 4px;
}
.article :not(pre) > code { white-space: nowrap; }
.sidebar details.mod > summary { list-style: none; cursor: pointer; display: flex; align-items: baseline; gap: 0; }
.sidebar details.mod > summary::-webkit-details-marker { display: none; }
.sidebar details.mod > summary::after { content: "+"; margin-left: auto; font: 12px var(--mono); color: var(--muted); }
.sidebar details.mod[open] > summary::after { content: "−"; }
.sidebar details.mod > summary:hover { color: var(--accent); }
.sidebar a.sec .n { width: 34px; flex: none; }
.sidebar a.sec .p { flex: none; }

/* ------------------------------------------------------------ CTF */
.ctf-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.ctf-card {
  display: block; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); color: var(--text);
}
.ctf-card:hover { border-color: var(--line-2); text-decoration: none; }
.ctf-card-top { display: flex; align-items: center; gap: 10px; }
.ctf-card-top h3 { margin: 0; font-size: 16px; flex: 1; }
.ctf-card p { color: var(--text-2); font-size: 13px; margin: 10px 0 14px; }
.ctf-card-meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.ctf-card-meta .pts { color: var(--accent); }

.ctf-progress { display: flex; align-items: center; gap: 20px; margin: 4px 0 24px; flex-wrap: wrap; }
.ctf-progress .ctf-stat { font-size: 13px; color: var(--text-2); }
.ctf-progress .ctf-stat b { font: 600 18px var(--mono); color: var(--accent); }
.ctf-progress .bar { flex: 1; min-width: 160px; }

.ctf-cols { display: grid; grid-template-columns: 1fr 260px; gap: 28px; align-items: start; }
.ctf-main { min-width: 0; }
.ctf-chal .qn.pts {
  width: auto; min-width: 34px; height: 24px; padding: 0 8px; border-radius: 12px;
  color: var(--accent); border-color: var(--accent-dim);
}
.ctf-chal.solved .qn.pts { background: var(--accent); color: #0b1000; }
.ctf-chal .chal-title { font-weight: 600; font-size: 14px; }
.ctf-chal .chal-text { color: var(--text-2); font-size: 13px; margin-top: 4px; white-space: pre-wrap; }

.ctf-board { position: sticky; top: 72px; }
.board { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.board li { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-bottom: 1px solid var(--line); font-size: 13px; }
.board li:last-child { border-bottom: none; }
.board .rank { width: 20px; font: 600 12px var(--mono); color: var(--muted); }
.board li:nth-child(1) .rank { color: var(--accent); }
.board .who { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.board .score { color: var(--accent); }

/* CTF sahifasida dock to'liq kenglikda (sidebar yo'q) */
.ctf-wrap ~ .dock { left: 0; }

/* admin: challenge muharriri */
.toolbar { display: flex; gap: 10px; margin-bottom: 18px; }
.toolbar form { margin: 0; }
textarea.input { height: auto; padding: 10px 12px; line-height: 1.5; resize: vertical; }
.chal-form { padding: 16px; }
.chal-form .row2 { display: grid; grid-template-columns: 1fr 120px; gap: 16px; }
.chal-edit > summary { display: flex; align-items: center; gap: 10px; }
.chal-pts { color: var(--accent); }
.chal-cat-tag {
  font: 600 10px var(--mono); letter-spacing: .05em; text-transform: uppercase;
  color: var(--muted); background: var(--panel-2); padding: 2px 7px; border-radius: 2px;
}
.chal-actions { display: flex; align-items: center; }
.chal-del { margin: 0 16px 16px; padding-top: 12px; border-top: 1px solid var(--line); }

@media (max-width: 860px) {
  .ctf-cols { grid-template-columns: 1fr; }
  .ctf-board { position: static; }
  .chal-form .row2 { grid-template-columns: 1fr; }
}
.reset-box { padding: 16px; }
.reset-box p { margin-top: 0; font-size: 13px; }
.reset-actions { display: flex; flex-direction: column; gap: 12px; }
.reset-actions form { display: flex; align-items: center; gap: 10px; margin: 0; }
.reset-actions .muted { font-size: 12px; }
#reset-answers { margin-left: 8px; }

/* ------------------------------------------------------------ progress (o'qilish / yakunlanish) */
/* Syllabusdagi modul doirasi */
.module-row .meta { align-items: center; }
.ring { width: 56px; height: 56px; display: block; }
.ring .track, .ring .fill {
  fill: none; stroke-width: 4;
  transform: rotate(-90deg); transform-origin: 24px 24px;
}
.ring .track { stroke: var(--line); }
.ring .fill {
  stroke: var(--accent); stroke-linecap: round; stroke-dasharray: 125.664;
  transition: stroke-dashoffset .6s ease;
}
.ring.full .fill { stroke: var(--accent); filter: drop-shadow(0 0 4px rgba(var(--accent-rgb),.4)); }
.ring .pct { fill: var(--text); font: 600 12px var(--mono); text-anchor: middle; dominant-baseline: central; }
.ring.full .pct { fill: var(--accent); }
.module-row .meta .mp-label { color: var(--text-2); }

/* Yakunlangan bo'lim chipi */
.chip.read { border-color: var(--accent-dim); color: var(--text); }
.chip.read .n { color: var(--accent); }

/* Yon paneldagi modul foizi va o'qilgan belgisi */
.sidebar details.mod > summary::after { margin-left: 6px; }
.sidebar .mod-title .mp { margin-left: auto; font: 11px var(--mono); color: var(--muted); }
.sidebar .mod-title .mp.full { color: var(--accent); }
.sidebar a.sec .p.read-dot { color: var(--muted); }
.sidebar a.sec.read .p.read-dot { color: var(--accent); }
.sidebar a.sec.read .n { color: var(--accent-dim); }

/* Bo'lim sahifasidagi suzuvchi o'qilish doirasi */
.read-ring {
  position: fixed; right: 22px; top: 50%; transform: translateY(-50%);
  width: 58px; height: 58px; z-index: 40; display: grid; place-items: center;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,.4));
}
.read-ring svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.read-ring .track { fill: var(--bg-2); stroke: var(--line); stroke-width: 4; }
.read-ring .fill {
  fill: none; stroke: var(--accent); stroke-width: 4; stroke-linecap: round;
  stroke-dashoffset: 125.664;
  transform: rotate(-90deg); transform-origin: 24px 24px;
  transition: stroke-dashoffset .15s linear;
}
.read-ring .label { position: relative; font: 600 12px var(--mono); color: var(--text-2); }
.read-ring.done .label { color: var(--accent); font-size: 16px; }
.read-ring.done .track { stroke: var(--accent-dim); }
@media (max-width: 720px) {
  .read-ring { width: 46px; height: 46px; right: 10px; }
  .read-ring .label { font-size: 10px; }
}

/* ------------------------------------------------------------ "tez orada" lab holati */
.soon-badge {
  display: inline-block; align-self: flex-start;
  padding: 3px 10px; border-radius: 999px;
  font: 600 11px/1.4 var(--mono); letter-spacing: .04em;
  color: var(--accent); background: var(--accent-bg);
  border: 1px solid var(--accent-dim);
}
.soon-panel {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 20px 22px; border: 1px dashed var(--line-2);
  border-radius: var(--radius); background: var(--panel);
}
.soon-panel h3 { margin: 0 0 6px; font-size: 15px; }
.soon-panel p { margin: 0; color: var(--text-2); font-size: 14px; max-width: 640px; }

/* butun modul "tez orada" (hali material yo'q) */
.module-row.soon-row { border-style: dashed; opacity: .72; }
.module-row.soon-row:hover { opacity: .92; }
.module-row.soon-row .num { color: var(--line-2); }
.soon-tag {
  display: inline-block; vertical-align: middle; margin-left: 8px;
  padding: 2px 9px; border-radius: 999px;
  font: 600 10px/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--on-accent); background: var(--grad);
}
.sidebar .soon-mod { margin-bottom: 18px; opacity: .6; }
.sidebar .soon-mod .mod-title { display: flex; align-items: baseline; }
.sidebar .mod-title .mp.soon {
  margin-left: auto; color: var(--accent-2);
  font: 10px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase;
}

/* ------------------------------------------------------------ CTF yopiq (lock) holati */
.ctf-card.locked { opacity: .72; cursor: not-allowed; border-style: dashed; }
.ctf-card.locked:hover { border-color: var(--line-2); }
.badge.lock { background: rgba(255,95,86,.12); color: var(--red); border: 1px solid rgba(255,95,86,.35); }
.lock-note { margin: 8px 0 4px; font-size: 13px; color: var(--text-2); }
.lock-note b { color: var(--text); }
.lock-panel {
  display: flex; gap: 20px; align-items: flex-start;
  padding: 28px 26px; border: 1px dashed var(--line-2);
  border-radius: var(--radius); background: var(--panel); margin-top: 8px;
}
.lock-panel .lock-ico { font-size: 34px; line-height: 1; }
.lock-panel h3 { margin: 0 0 8px; font-size: 17px; }
.lock-panel p { margin: 0 0 16px; color: var(--text-2); max-width: 620px; }
.lock-panel .btn { margin-right: 8px; }

/* ------------------------------------------------------------ obuna (subscription) */
.sub-banner {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 14px 18px; margin: 0 0 22px;
  border: 1px solid rgba(255,95,86,.3); background: rgba(255,95,86,.07);
  border-radius: var(--radius); font-size: 14px; color: var(--text-2);
}
.sub-banner .lock-ico { font-size: 20px; line-height: 1.2; }
.sub-banner b { color: var(--text); }
.soon-badge.lock { color: var(--red); background: rgba(255,95,86,.12); border-color: rgba(255,95,86,.35); }

.auth-form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 520px) { .auth-form .row2 { grid-template-columns: 1fr; } }

.subs-form { display: flex; align-items: center; gap: 10px; margin: 0; flex-wrap: wrap; }
.subs-form label { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--text-2); margin: 0; }
.subs-form label input { accent-color: var(--accent); }

/* ============================================================
   PREMIUM QATLAM — A24-ta'siridagi yagona dizayn tizimi
   (eng oxirida: umumiy komponentlarni global yangilaydi)
   ============================================================ */

/* --- kinematik sahifa foni (barcha sahifalar) --- */
body {
  background:
    radial-gradient(1000px 620px at 84% -10%, rgba(var(--accent-rgb), .085), transparent 60%),
    radial-gradient(900px 720px at -10% 112%, rgba(var(--accent-2-rgb), .085), transparent 60%),
    var(--bg);
  background-attachment: fixed;
}
body::before { /* nozik don (grain) — chuqurlik; kontent ortida turadi */
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* topbar — suzuvchi dizayn yuqorida (floating pill) belgilangan */

/* --- tugmalar (premium) --- */
.btn { border-radius: 10px; transition: transform .14s, border-color .14s, background .14s, box-shadow .14s; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { box-shadow: 0 8px 24px -6px rgba(var(--accent-rgb), .5); }
.btn-primary:hover { box-shadow: 0 12px 30px -6px rgba(var(--accent-rgb), .62); }
.btn-lg { height: 46px; padding: 0 24px; border-radius: 12px; font-size: 14px; }

/* --- umumiy premium yuza (kartalar, panellar) --- */
.mod-card, .path-card, .ctf-card, .module-row, .question, .lab,
details.panel, .board, .soon-panel, .lock-panel, .term, .feat {
  background:
    linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,0) 42%),
    var(--surface);
  border: 1px solid var(--hair);
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.mod-card, .path-card, .ctf-card { border-radius: 16px; }

/* clickable kartalar — hover lift + accent glow */
a.mod-card:hover, .path-card:hover, a.ctf-card:hover {
  border-color: rgba(var(--accent-rgb), .5);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(var(--accent-rgb), .22), 0 24px 60px -24px rgba(var(--accent-rgb), .35);
  transform: translateY(-3px);
}
.mod-card::before { height: 2px; background: var(--grad); }

/* --- sarlavhalar / eyebrow --- */
.page-head h1 { font-size: 30px; font-weight: 700; letter-spacing: -.02em; }
.eyebrow { color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; }
.section-title { color: var(--text-2); letter-spacing: .16em; }
.section-title::after { background: linear-gradient(90deg, var(--hair-strong), transparent); }

/* --- jadval (premium) --- */
table.data { border: 1px solid var(--hair); border-radius: 14px; overflow: hidden; background: var(--surface); }
table.data th { background: rgba(255,255,255,.03); border-bottom: 1px solid var(--hair); }
table.data td { border-bottom: 1px solid var(--hair); }
table.data tr:last-child td { border-bottom: none; }
table.data tr:hover td { background: rgba(var(--accent-rgb), .05); }

/* --- yon panel (sidebar) accent --- */
.sidebar { background: linear-gradient(180deg, rgba(255,255,255,.02), transparent 30%), var(--bg-2); border-right: 1px solid var(--hair); }
.sidebar a.sec.active { background: rgba(var(--accent-rgb), .08); box-shadow: inset 2px 0 0 var(--accent); border-left-color: transparent; }

/* --- maqola / terminal / note --- */
.article h2 { border-top: 1px solid var(--hair); }
.article :not(pre) > code { background: rgba(255,255,255,.05); border-color: var(--hair); border-radius: 6px; }
.term { background: #0a0910; }
.term .term-head { background: rgba(255,255,255,.025); border-bottom: 1px solid var(--hair); }
.deploy-log { border-radius: 10px; border-color: var(--hair); background: #0a0910; }

/* --- inputlar --- */
.input { border-radius: 10px; background: rgba(0,0,0,.28); border-color: var(--hair-strong); transition: border-color .15s, box-shadow .15s; }
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .14); }

/* --- CTF kartalari / board --- */
.ctf-card-top h3 { letter-spacing: -.01em; }
.board { border-color: var(--hair); }
.board li { border-bottom: 1px solid var(--hair); }

/* ============================================================
   "/" sahifasidagi FEATURED yo'nalish kartasi (CJCA)
   ============================================================ */
.feat {
  position: relative; overflow: hidden; margin-bottom: 30px;
  display: grid; grid-template-columns: 230px 1fr;
  border-radius: 20px; box-shadow: var(--shadow-lg);
}
.feat::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: var(--grad); opacity: .9; }
.feat.locked { opacity: .9; }
.feat-emblem {
  position: relative; display: grid; align-content: center; justify-items: center; gap: 18px;
  padding: 36px 20px; border-right: 1px solid var(--hair);
  background:
    radial-gradient(130% 80% at 50% 0%, rgba(var(--accent-rgb), .18), transparent 70%),
    linear-gradient(160deg, rgba(var(--accent-rgb), .07), rgba(var(--accent-2-rgb), .07));
}
.feat-code {
  font: 900 36px var(--mono); letter-spacing: .05em; line-height: 1;
  color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text;
  filter: drop-shadow(0 0 22px rgba(var(--accent-rgb), .35));
}
.feat-ring {
  position: relative; width: 98px; height: 98px; border-radius: 50%;
  background: conic-gradient(from -90deg, var(--accent), var(--accent-2) calc(var(--p, 0) * 1%), rgba(255,255,255,.07) 0);
}
.feat-ring::after { content: ""; position: absolute; inset: 8px; border-radius: 50%;
  background: #0c0a12; box-shadow: inset 0 0 20px rgba(0,0,0,.6); }
.feat-ring span { position: absolute; inset: 0; display: grid; place-items: center; z-index: 1;
  font: 700 19px var(--mono); color: var(--text); }
.feat-main { padding: 28px 30px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.feat-top { display: flex; align-items: center; gap: 14px; }
.feat-eyebrow { font: 700 11px var(--mono); letter-spacing: .2em; text-transform: uppercase;
  color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; }
.feat-title { margin: 0; font-size: clamp(22px, 2.6vw, 30px); font-weight: 700; letter-spacing: -.02em; }
.feat-sub { margin: 0; font: 600 14px var(--mono); color: var(--text-2); }
.feat-sum { margin: 0; color: var(--text-2); font-size: 14px; line-height: 1.6; max-width: 70ch; }
.feat-stats { display: flex; flex-wrap: wrap; gap: 28px; margin: 8px 0 4px; }
.feat-stats .fs { display: flex; flex-direction: column; gap: 2px; }
.feat-stats .fs b { font: 800 24px var(--mono); color: var(--text); letter-spacing: -.01em; }
.feat-stats .fs span { font: 600 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.feat-cta { margin-top: 8px; display: flex; align-items: center; gap: 14px; }
.feat-cta .feat-lock { font: 600 12px var(--mono); color: var(--red); }
@media (max-width: 720px) {
  .feat { grid-template-columns: 1fr; }
  .feat-emblem { flex-direction: row; border-right: none; border-bottom: 1px solid var(--hair);
    grid-auto-flow: column; padding: 24px; }
}

/* --- brend muallifi: by BytePhantom --- */
.auth-side .foot .by { color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; font-weight: 700; font-family: var(--mono); }

/* ============================================================
   3D DISK HERO (A24) — / va /path sahifalari uchun umumiy
   ============================================================ */
.hero3d {
  position: relative; height: calc(100vh - var(--topbar)); min-height: 560px;
  overflow: hidden; isolation: isolate;
  background:
    radial-gradient(130vw 90vh at 50% 118%, rgba(255,122,41,.12), transparent 60%),
    radial-gradient(100vw 70vh at 50% -20%, rgba(255,46,126,.08), transparent 60%),
    #070709;
}
.hero3d::after { content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 2;
  background: radial-gradient(120% 120% at 50% 42%, transparent 55%, rgba(0,0,0,.72) 100%); }
.hero3d::before { content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 2;
  background: linear-gradient(90deg,
    rgba(6,6,9,.92) 0%, rgba(6,6,9,.72) 22%, rgba(6,6,9,.28) 38%, rgba(6,6,9,0) 50%); }
#h3-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1;
  display: block; touch-action: pan-y; cursor: grab; }
#h3-canvas:active { cursor: grabbing; }
.hero3d.h3-nowebgl #h3-canvas,
.hero3d.h3-nowebgl .h3-ui,
.hero3d.h3-nowebgl .h3-credit,
.hero3d.h3-nowebgl .h3-counter,
.hero3d.h3-nowebgl .h3-hint { display: none; }
.hero3d.h3-nowebgl { height: auto; min-height: 0; background: none; }

.h3-ui { position: absolute; z-index: 3; left: clamp(20px, 6vw, 92px);
  top: 50%; transform: translateY(-50%); max-width: min(560px, 82vw); pointer-events: none; }
.h3-ui > * { pointer-events: auto; }
.h3-eyebrow { font: 700 12px var(--mono); letter-spacing: .34em; color: var(--muted);
  text-transform: uppercase; margin-bottom: 14px; }
.h3-eyebrow.on { color: var(--accent); }
.h3-title { margin: 0 0 14px; font: 700 clamp(34px, 6vw, 72px)/1.02 var(--sans);
  letter-spacing: -.02em; color: #f2f2f2; text-shadow: 0 2px 40px rgba(0,0,0,.6); }
.h3-sub { margin: 0 0 20px; color: var(--text-2); font-size: clamp(14px, 1.4vw, 17px);
  line-height: 1.6; max-width: 46ch; }
.h3-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  font: 600 12px var(--mono); color: var(--muted); margin-bottom: 26px; }
.h3-meta .dot { color: var(--line-2); }
.h3-actions { display: flex; align-items: center; gap: 12px; }
.h3-open { display: inline-flex; align-items: center; height: 46px; padding: 0 24px;
  border-radius: 999px; background: var(--grad); color: var(--on-accent);
  font: 800 14px var(--sans); letter-spacing: .01em;
  box-shadow: 0 10px 30px rgba(255,122,41,.28); transition: transform .15s, box-shadow .15s; }
.h3-open:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(255,122,41,.4); text-decoration: none; }
.h3-open.off { background: #1b1724; color: var(--muted); box-shadow: none; cursor: default; }
.h3-open.off:hover { transform: none; }
.h3-nav { width: 46px; height: 46px; border-radius: 999px; display: grid; place-items: center;
  border: 1px solid var(--line-2); background: rgba(16,13,22,.6); color: #f2f2f2;
  font-size: 22px; line-height: 1; cursor: pointer; backdrop-filter: blur(6px);
  transition: border-color .15s, background .15s; }
.h3-nav:hover { border-color: var(--accent-dim); background: rgba(255,122,41,.12); }
.h3-counter { position: absolute; z-index: 3; right: clamp(20px, 6vw, 80px); bottom: 56px;
  font: 700 14px var(--mono); color: var(--text-2); letter-spacing: .1em; }
.h3-counter #h3-idx { color: #f2f2f2; font-size: 26px; }
.h3-hint { position: absolute; z-index: 3; left: 50%; bottom: 20px; transform: translateX(-50%);
  font: 600 11px var(--mono); letter-spacing: .24em; color: var(--muted);
  text-transform: uppercase; display: flex; gap: 20px; align-items: center; cursor: pointer; }
.h3-hint .k { padding: 3px 9px; border: 1px solid var(--line); border-radius: 6px; }
@keyframes h3-bounce { 0%,100% { transform: translateY(0); } 50% { transform: translateY(5px); } }
.h3-hint .down { animation: h3-bounce 1.8s ease-in-out infinite; }
.h3-credit { position: absolute; z-index: 3; left: clamp(20px, 6vw, 92px); bottom: 20px;
  font: 600 11px var(--mono); letter-spacing: .1em; color: var(--muted); text-transform: uppercase; }
.h3-credit b { color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; font-weight: 700; }
.h3-pre { position: absolute; inset: 0; z-index: 20; background: #060608;
  display: grid; place-content: center; justify-items: center; gap: 22px; transition: opacity .6s ease; }
.h3-pre.done { opacity: 0; pointer-events: none; }
.h3-pre-num { font: 800 72px var(--mono); color: #f2f2f2; letter-spacing: -.02em; }
.h3-pre-label { font: 700 12px var(--mono); letter-spacing: .4em; color: var(--muted); text-transform: uppercase; }
.h3-pre-bar { width: min(260px, 60vw); height: 2px; background: #1c1824; overflow: hidden; }
.h3-pre-bar > i { display: block; height: 100%; width: 0; background: var(--grad); }
.wrap { position: relative; z-index: 2; }
@media (max-width: 760px) {
  .hero3d { height: 78vh; min-height: 480px; }
  .h3-ui { top: auto; bottom: 94px; transform: none; }
  .h3-counter { bottom: 20px; }
  .h3-hint { display: none; }
}
@media (prefers-reduced-motion: reduce) { .h3-hint .down { animation: none; } }

/* no-WebGL fallback: 3D o'rniga modul grid ko'rinadi */
#mod-fallback { display: none; }
.hero3d.h3-nowebgl ~ .wrap #mod-fallback { display: grid; }
.hero3d.h3-nowebgl ~ .wrap #module-detail { display: none; }

/* ================= tanlangan modul "detal" paneli (/path) ================= */
.mdx { scroll-margin-top: calc(var(--topbar) + 14px); padding-top: 10px; }
.mdx-inner { animation: mdx-in .35s ease; }
@keyframes mdx-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.mdx-head { display: flex; align-items: flex-start; gap: 18px; margin-bottom: 14px; }
.mdx-num { font: 900 clamp(34px,5vw,48px) var(--mono); line-height: 1; flex: none;
  color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text;
  filter: drop-shadow(0 0 18px rgba(var(--accent-rgb),.3)); }
.mdx-hgroup { flex: 1; min-width: 0; }
.mdx-eyebrow { font: 700 11px var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.mdx-eyebrow.on { color: var(--accent); }
.mdx-title { margin: 0; font-size: clamp(22px, 3vw, 34px); font-weight: 700; letter-spacing: -.02em; }
.mdx-cta { flex: none; }
.mdx-sum { color: var(--text-2); font-size: 15px; line-height: 1.7; max-width: 76ch; margin: 0 0 18px; }
.mdx-stats { display: flex; flex-wrap: wrap; gap: 26px; margin-bottom: 16px; }
.mdx-stats .fs { display: flex; flex-direction: column; gap: 2px; }
.mdx-stats .fs b { font: 800 22px var(--mono); color: var(--text); }
.mdx-stats .fs span { font: 600 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.mdx-bar { height: 6px; border-radius: 3px; background: var(--line); overflow: hidden; margin-bottom: 24px; max-width: 520px; }
.mdx-bar > i { display: block; height: 100%; background: var(--grad); border-radius: 3px; transition: width .5s ease; }
/* modul haqida — skillar/mavzular + kerakli ma'lumotlar */
.mdx-block { margin-top: 26px; }
.mdx-blabel { font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: .12em;
  color: var(--muted); margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.mdx-blabel b { font: 800 11px var(--mono); color: var(--accent); background: rgba(var(--accent-rgb),.12);
  border: 1px solid rgba(var(--accent-rgb),.28); border-radius: 999px; padding: 2px 9px; }
.mdx-chips { display: flex; flex-wrap: wrap; gap: 9px; }
.mdx-chip { display: inline-flex; align-items: center; gap: 7px; padding: 8px 14px;
  border: 1px solid var(--hair); border-radius: 999px; background: var(--surface); color: var(--text);
  font-size: 13.5px; line-height: 1; transition: border-color .15s, background .15s, transform .15s; }
.mdx-chip:hover { border-color: rgba(var(--accent-rgb),.5); transform: translateY(-1px); }
.mdx-chip .ck { font: 800 11px var(--mono); color: #05140c; background: var(--accent);
  width: 16px; height: 16px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; }
.mdx-chip.on { border-color: rgba(var(--accent-rgb),.45); background: rgba(var(--accent-rgb),.08); }
.mdx-chip .lab { font: 700 9px var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); border: 1px solid rgba(var(--accent-rgb),.4); border-radius: 4px; padding: 1px 4px; font-style: normal; }
.mdx-note { margin: 12px 0 0; font-size: 12.5px; color: var(--muted); }
.mdx-info { display: grid; gap: 1px; background: var(--hair); border: 1px solid var(--hair);
  border-radius: 14px; overflow: hidden; max-width: 560px; }
.mdx-irow { display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 13px 16px; background: var(--surface); }
.mdx-irow .k { font: 600 11px var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.mdx-irow .v { font-size: 14px; font-weight: 600; color: var(--text); text-align: right; }
.mdx-soon { color: var(--muted); font-size: 14px; padding: 8px 0; }
@media (max-width: 680px) { .mdx-head { flex-wrap: wrap; } .mdx-cta { width: 100%; } }

/* ------------------------------------------------------------ Playground */
.pg-tabs { display: inline-flex; gap: 4px; padding: 6px; margin: 4px 0 26px;
  background: var(--surface); border: 1px solid var(--hair); border-radius: 999px; }
.pg-tab { cursor: pointer; display: inline-flex; align-items: center; gap: 9px;
  padding: 10px 20px; border: 0; border-radius: 999px; background: transparent;
  color: var(--muted); font: 600 14px var(--sans, inherit); transition: color .18s, background .18s; }
.pg-tab .ico { font-size: 13px; opacity: .8; }
.pg-tab:hover { color: var(--text); }
.pg-tab.on { color: #fff; background: var(--grad); box-shadow: 0 4px 16px rgba(var(--accent-rgb), .4); }
.pg-tab .pg-count { font: 700 11px var(--mono); padding: 1px 8px; border-radius: 999px;
  background: rgba(255,255,255,.12); }
.pg-tab.on .pg-count { background: rgba(0,0,0,.22); }
.pg-pane { display: none; animation: mdx-in .25s ease; }
.pg-pane.on { display: block; }
/* machine kartasi teglari */
.mc-tags { display: flex; gap: 7px; margin: -2px 0 10px; }
.mtag { font: 700 10px var(--mono); letter-spacing: .06em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 999px; border: 1px solid var(--hair); color: var(--text-2); }
.mtag.os-linux { color: #ffb067; border-color: rgba(255,122,41,.4); }
.mtag.os-windows { color: #6fb3ff; border-color: rgba(90,150,255,.4); }
.mtag.diff-easy { color: #58d6a0; border-color: rgba(88,214,160,.45); }
.mtag.diff-medium { color: #ffcc66; border-color: rgba(255,204,102,.45); }
.mtag.diff-hard { color: #ff6b8b; border-color: rgba(255,107,139,.45); }
.ctf-card.is-machine::before { content: "▣"; position: absolute; top: 14px; right: 16px;
  font-size: 14px; color: var(--muted); opacity: .5; }
.ctf-card { position: relative; }
@media (max-width: 520px) { .pg-tabs { display: flex; } .pg-tab { flex: 1; justify-content: center; padding: 10px 12px; } }

/* ------------------------------------------------------------ Yangiliklar / blog */
.blog-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); }
.blog-card { display: flex; flex-direction: column; overflow: hidden; color: var(--text);
  background: var(--surface); border: 1px solid var(--hair); border-radius: 16px;
  transition: border-color .16s, transform .16s, box-shadow .16s; }
.blog-card:hover { border-color: rgba(var(--accent-rgb),.5); transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0,0,0,.35); text-decoration: none; }
.bc-cover { height: 150px; background: #15121c center/cover no-repeat; border-bottom: 1px solid var(--hair); }
.bc-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 9px; }
.bc-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.bc-date { font-size: 11.5px; color: var(--muted); }
.bc-title { font-size: 17px; line-height: 1.3; margin: 0; }
.bc-sum { font-size: 13.5px; color: var(--text-2); margin: 0; }
.bc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.chip { font: 600 11px var(--mono); color: var(--text-2); padding: 3px 9px;
  border: 1px solid var(--hair); border-radius: 999px; }
/* severity badge */
.sev { font: 800 10px var(--mono); letter-spacing: .08em; padding: 3px 9px; border-radius: 999px; border: 1px solid; }
.sev-low      { color: #58d6a0; border-color: rgba(88,214,160,.5);  background: rgba(88,214,160,.1); }
.sev-medium   { color: #ffcc66; border-color: rgba(255,204,102,.5); background: rgba(255,204,102,.1); }
.sev-high     { color: #ff9a52; border-color: rgba(255,122,41,.5);  background: rgba(255,122,41,.1); }
.sev-critical { color: #ff5b7b; border-color: rgba(255,46,126,.6);  background: rgba(255,46,126,.14); }
/* post article */
.article-wrap { max-width: 860px; }
.post-head { padding: 10px 0 8px; border-bottom: 1px solid var(--hair); margin-bottom: 22px; }
.post-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.post-title { font-size: 34px; line-height: 1.12; margin: 0 0 12px; }
.post-sum { font-size: 16px; color: var(--text-2); margin: 0 0 12px; }
.post-cover { margin: 0 0 22px; }
.post-cover img { width: 100%; border-radius: 14px; border: 1px solid var(--hair); }
.post-foot { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--hair); }