/* ===== Цвета и шрифты ===== */
:root {
  --kd-accent: #00bfa5;
  --kd-dark: #0d2a4a;
  --kd-radius: 14px;
  --md-text-font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --md-code-font-family: Consolas, "Cascadia Mono", "DejaVu Sans Mono", monospace;
}
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #0d47a1;
  --md-primary-fg-color--dark: #0a3880;
  --md-accent-fg-color: #00bfa5;
}
[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #0d2a4a;
  --md-accent-fg-color: #64ffda;
}
body { font-family: var(--md-text-font-family); }
.md-header { box-shadow: 0 2px 12px rgba(0,0,0,.18); }
.md-tabs { background: linear-gradient(90deg, #0d47a1, #00695c); }
.md-typeset h1 { font-weight: 700; letter-spacing: -.01em; }
.md-typeset h2 { font-weight: 650; border-bottom: 2px solid var(--md-default-fg-color--lightest); padding-bottom: .2em; }
.md-typeset .md-button { border-radius: 10px; }

/* ===== Главная ===== */
.hero {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 1.5rem; align-items: center;
  margin: -0.5rem 0 1.5rem; padding: 2rem 2.2rem; border-radius: var(--kd-radius);
  background: radial-gradient(circle at 85% 20%, #00897b 0, transparent 55%), linear-gradient(135deg, #0d2a4a, #0d47a1);
  color: #fff;
}
.hero h1 { color: #fff !important; font-size: 2.1rem; margin: 0 0 .6rem; }
.hero p { color: #e3f2fd; font-size: .9rem; }
.hero .md-button { color: #fff; border-color: rgba(255,255,255,.6); }
.hero .md-button--primary { background: var(--kd-accent); border-color: var(--kd-accent); color: #002b26; }
.hero-art { width: 100%; max-height: 260px; }
@media (max-width: 760px) { .hero { grid-template-columns: 1fr; padding: 1.4rem; } .hero-art { display: none; } }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; margin: 0 0 1.5rem; }
.stat { background: var(--md-code-bg-color); border-radius: var(--kd-radius); padding: 1rem; text-align: center;
  border: 1px solid var(--md-default-fg-color--lightest); }
.stat b { display: block; font-size: 1.8rem; color: var(--md-primary-fg-color); line-height: 1.2; }
[data-md-color-scheme="slate"] .stat b { color: var(--kd-accent); }
.stat span { font-size: .72rem; color: var(--md-default-fg-color--light); }
@media (max-width: 600px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.brand-strip { line-height: 2; color: var(--md-default-fg-color--light); }

/* ===== Карточки каталога ===== */
.cat-filter { display: flex; flex-wrap: wrap; gap: .4rem; margin: 1rem 0; }
.cat-chip { border: 1px solid var(--md-default-fg-color--lighter); background: transparent; color: inherit;
  border-radius: 999px; padding: .3rem .9rem; cursor: pointer; font-size: .75rem; }
.cat-chip.is-active, .cat-chip:hover { background: var(--md-primary-fg-color); color: #fff; border-color: transparent; }
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 1rem; margin: 1rem 0 2rem; }
.md-typeset a.cat-card { display: flex; flex-direction: column; gap: .15rem; padding: .6rem .6rem .9rem;
  border-radius: var(--kd-radius); border: 1px solid var(--md-default-fg-color--lightest);
  background: var(--md-default-bg-color); color: inherit; transition: transform .15s, box-shadow .15s; }
.md-typeset a.cat-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.cat-card img { width: 100%; border-radius: 10px; margin-bottom: .4rem; }
.cat-card-brand { font-size: .65rem; text-transform: uppercase; letter-spacing: .06em; color: var(--md-default-fg-color--light); }
.cat-card-title { font-weight: 700; font-size: .85rem; }
.cat-card-meta { font-size: .68rem; color: var(--md-default-fg-color--light); }
.cat-card[hidden] { display: none; }

/* ===== Страница контроллера ===== */
.ctl-hero { display: grid; grid-template-columns: 320px 1fr; gap: 1.5rem; align-items: center; margin-bottom: 1.5rem; }
.ctl-img { width: 100%; border-radius: var(--kd-radius); box-shadow: 0 6px 20px rgba(0,0,0,.12); }
@media (max-width: 760px) { .ctl-hero { grid-template-columns: 1fr; } }
.ctl-badge { display: inline-block; font-size: .68rem; padding: .15rem .6rem; border-radius: 999px;
  background: var(--md-primary-fg-color); color: #fff; margin-bottom: .3rem; }
.ctl-badge--alt { background: var(--kd-accent); color: #002b26; }

/* ===== Просмотрщик PDF ===== */
.pdfv { border: 1px solid var(--md-default-fg-color--lightest); border-radius: var(--kd-radius); padding: .6rem .8rem; margin: .8rem 0; }
.pdfv-head { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.pdfv-title { flex: 1 1 200px; font-weight: 600; }
.md-typeset .pdfv .md-button { margin: 0; padding: .3em 1em; font-size: .72rem; }
.pdfv-status { font-size: .72rem; color: var(--md-default-fg-color--light); margin: .5rem 0; }
.pdfv-pages { max-height: 80vh; overflow: auto; background: #78909c; padding: .6rem; border-radius: 10px; }
.pdfv-page { display: block; margin: 0 auto .6rem; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.3); }

/* ===== Чат ===== */
.chat { border: 1px solid var(--md-default-fg-color--lightest); border-radius: var(--kd-radius); overflow: hidden; }
.chat-log { height: 55vh; min-height: 300px; overflow-y: auto; padding: 1rem; background: var(--md-code-bg-color); }
.chat-msg { background: var(--md-default-bg-color); border-radius: 12px; padding: .5rem .8rem; margin-bottom: .6rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.08); max-width: 85%; }
.chat-head { display: flex; gap: .6rem; align-items: baseline; font-size: .72rem; }
.chat-head b { color: var(--md-primary-fg-color); }
[data-md-color-scheme="slate"] .chat-head b { color: var(--kd-accent); }
.chat-head time { color: var(--md-default-fg-color--light); }
.chat-body { white-space: pre-wrap; word-wrap: break-word; font-size: .8rem; }
.chat-empty { color: var(--md-default-fg-color--light); text-align: center; margin-top: 2rem; }
.chat-form { display: grid; grid-template-columns: 180px 1fr auto; gap: .5rem; padding: .7rem; border-top: 1px solid var(--md-default-fg-color--lightest); }
.chat-form input, .chat-form textarea { font: inherit; font-size: .8rem; padding: .5rem .7rem; border-radius: 10px;
  border: 1px solid var(--md-default-fg-color--lighter); background: var(--md-default-bg-color); color: var(--md-default-fg-color); resize: vertical; }
.md-typeset .chat-send { margin: 0; align-self: stretch; }
.chat-hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.chat-status { font-size: .72rem; color: #e53935; padding: 0 .8rem .5rem; min-height: 1em; }
@media (max-width: 700px) { .chat-form { grid-template-columns: 1fr; } }
.pdfv-src { font-size: .68rem; color: var(--md-default-fg-color--light); margin: -.4rem 0 1rem .4rem; }