/* Equipment Management — дизайн-система.
 * Підключення на сторінці (у <head>):
 *   <link rel="preconnect" href="https://fonts.googleapis.com"><link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
 *   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300..800&family=JetBrains+Mono:wght@400..700&family=Unbounded:wght@500..900&display=swap" rel="stylesheet">
 *   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@tabler/icons-webfont@3.7.0/dist/tabler-icons.min.css">
 *   <link rel="stylesheet" href="assets/em.css">
 * Темна тема за замовчуванням; світла — <body class="light"> (вхід, сертифікат).
 */

/* ===================== ТОКЕНИ ===================== */
:root {
  --bg: #0C0E14;
  --bg2: #131620;
  --bg3: #1A1E2A;
  --border: rgba(255, 255, 255, .08);
  --border2: rgba(255, 255, 255, .15);
  --text: #F0F2F5;
  --text2: rgba(240, 242, 245, .66);
  --text3: rgba(240, 242, 245, .4);
  --acc: #14B8A6;
  --acc-soft: rgba(20, 184, 166, .12);
  --acc-ink: #5EEAD4;
  --acc2: #F59E0B;
  --acc2-soft: rgba(245, 158, 11, .12);
  --warn: #F59E0B;
  --ok: #10B981;
  --ok-soft: rgba(16, 185, 129, .12);
  --err: #EF4444;
  --err-soft: rgba(239, 68, 68, .12);
  --r: 14px;
  --r2: 10px;
  --shadow: 0 12px 40px rgba(0, 0, 0, .45);
  --f-display: 'Unbounded', 'Inter', system-ui, sans-serif;
  --f-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  color-scheme: dark;
}
body.light {
  --bg: #F4F5F7;
  --bg2: #FFFFFF;
  --bg3: #EEF0F3;
  --border: rgba(20, 23, 28, .1);
  --border2: rgba(20, 23, 28, .2);
  --text: #14171C;
  --text2: rgba(20, 23, 28, .68);
  --text3: rgba(20, 23, 28, .45);
  --acc: #0F9488;
  --acc-soft: rgba(15, 148, 136, .1);
  --acc-ink: #0B7268;
  --acc2: #D97706;
  --acc2-soft: rgba(217, 119, 6, .1);
  --warn: #D97706;
  --ok: #059669;
  --ok-soft: rgba(5, 150, 105, .1);
  --err: #DC2626;
  --err-soft: rgba(220, 38, 38, .08);
  --shadow: 0 12px 32px rgba(20, 23, 28, .12);
  color-scheme: light;
}

/* ===================== БАЗА ===================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 15px/1.6 var(--f-body);
  -webkit-font-smoothing: antialiased; overflow-wrap: break-word;
}
img, svg, video, iframe { max-width: 100%; }
a { color: var(--acc-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--f-display); font-weight: 700; line-height: 1.2; margin: 0 0 .6em; letter-spacing: -.01em; }
h1 { font-size: clamp(26px, 5vw, 44px); font-weight: 800; letter-spacing: -.03em; }
h2 { font-size: clamp(20px, 3vw, 28px); }
h3 { font-size: 18px; }
p { margin: 0 0 1em; }
code, kbd, .mono { font-family: var(--f-mono); }
code { font-size: .92em; background: var(--bg3); padding: .1em .35em; border-radius: 6px; }
hr { border: 0; border-top: 1px solid var(--border); margin: 24px 0; }
::selection { background: var(--acc); color: #fff; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }

.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.wrap.narrow { max-width: 820px; }
.muted { color: var(--text2); }
.label { font: 600 11px/1.3 var(--f-body); letter-spacing: .08em; text-transform: uppercase; color: var(--text3); }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ===================== ШАПКА І ЛОГОТИП ===================== */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(12, 14, 20, .88); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
body.light .topbar { background: rgba(244, 245, 247, .9); }
.topbar .wrap { display: flex; align-items: center; gap: 14px; min-height: 60px; flex-wrap: wrap; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; flex: none;
  background: linear-gradient(135deg, var(--acc), #0E7490); color: #fff;
  font: 800 14px/1 var(--f-display); letter-spacing: -.02em;
}
.logo-text b { display: block; font: 700 14px/1.1 var(--f-display); letter-spacing: .02em; }
.logo-text small { display: block; font-size: 11px; color: var(--text3); }

/* ===================== КНОПКИ, ПІГУЛКИ, КАРТКИ ===================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 10px 18px; border-radius: var(--r2);
  border: 1px solid var(--border); background: var(--bg2); color: var(--text);
  font: 600 14px/1.2 var(--f-body); cursor: pointer; text-decoration: none;
  transition: transform .15s, border-color .15s, background .15s, box-shadow .15s;
}
.btn:hover { border-color: var(--border2); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .5; cursor: not-allowed; transform: none; }
.btn .ti { font-size: 18px; }
.btn-primary { background: linear-gradient(135deg, var(--acc), #0D9488); border-color: transparent; color: #fff; box-shadow: 0 6px 20px rgba(20, 184, 166, .28); }
.btn-primary:hover { border-color: transparent; box-shadow: 0 8px 26px rgba(20, 184, 166, .4); }
.btn-ghost { background: transparent; }
.btn-warn { background: linear-gradient(135deg, var(--acc2), #EA580C); border-color: transparent; color: #fff; }
.btn-danger { color: var(--err); border-color: rgba(239, 68, 68, .35); background: transparent; }
.btn-sm { min-height: 34px; padding: 6px 12px; font-size: 13px; }
.btn-block { width: 100%; }

.pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px; border-radius: 20px;
  background: var(--bg3); border: 1px solid var(--border); color: var(--text2);
  font: 600 12px/1.4 var(--f-body); white-space: nowrap;
}
.pill.acc { color: var(--acc-ink); background: var(--acc-soft); border-color: transparent; }
.pill.warn { color: var(--acc2); background: var(--acc2-soft); border-color: transparent; }
.pill.ok { color: var(--ok); background: var(--ok-soft); border-color: transparent; }
.pill.err { color: var(--err); background: var(--err-soft); border-color: transparent; }

.card {
  position: relative; overflow: hidden; background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--r); padding: 20px; transition: transform .2s, border-color .2s, box-shadow .2s;
}
.card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: transparent; transition: background .2s; }
.card.hover:hover, a.card:hover { transform: translateY(-3px); border-color: var(--border2); box-shadow: var(--shadow); text-decoration: none; }
.card.hover:hover::before, a.card:hover::before, .card.accent::before { background: var(--card-acc, var(--acc)); }
a.card { color: inherit; display: block; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

.bar { height: 8px; border-radius: 8px; background: var(--bg3); overflow: hidden; }
.bar > i { display: block; height: 100%; width: var(--p, 0%); background: linear-gradient(90deg, var(--acc), var(--ok)); border-radius: inherit; transition: width .4s; }

/* ===================== ФОРМИ ===================== */
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 600; color: var(--text2); }
.input, input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="search"], select, textarea {
  width: 100%; min-height: 44px; padding: 10px 14px; border-radius: var(--r2);
  border: 1px solid var(--border); background: var(--bg3); color: var(--text);
  font: 400 15px/1.4 var(--f-body); transition: border-color .15s, box-shadow .15s;
}
textarea { min-height: 96px; resize: vertical; }
input:focus, select:focus, textarea:focus, .input:focus { outline: none; border-color: var(--acc); box-shadow: 0 0 0 3px var(--acc-soft); }
.field.error input, .field.error textarea, input[aria-invalid="true"] { border-color: var(--err); }
.field-hint { font-size: 12px; color: var(--text3); margin-top: 5px; }
.form-error { padding: 10px 14px; border-radius: var(--r2); background: var(--err-soft); color: var(--err); font-size: 14px; margin-bottom: 14px; }

/* ===================== ТОСТ І БАНЕР ===================== */
.toast {
  position: fixed; left: 50%; bottom: 24px; z-index: 100; transform: translate(-50%, 20px);
  max-width: min(92vw, 460px); padding: 12px 18px; border-radius: 12px;
  background: var(--bg3); border: 1px solid var(--border2); color: var(--text); box-shadow: var(--shadow);
  font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.ok { border-color: var(--ok); }
.toast.err { border-color: var(--err); }
.banner { padding: 10px 16px; background: var(--acc2-soft); color: var(--acc2); font-size: 13px; text-align: center; border-bottom: 1px solid var(--border); }

/* ===================== МОДУЛЬ: СЛОВНИК КОМПОНЕНТІВ ЗМІСТУ ===================== */
article.module { max-width: 780px; font-size: 16px; line-height: 1.7; color: var(--text); }
article.module p { color: var(--text); }
article.module h3 { font-size: 17px; margin-top: 1.4em; }
article.module ul:not([class]), article.module ol:not([class]) { padding-left: 1.3em; margin: 0 0 1em; }
article.module li { margin-bottom: .35em; }

.m-lead { font-size: 18px; line-height: 1.65; color: var(--text2); margin: 0 0 28px; padding-left: 16px; border-left: 3px solid var(--acc); }
section.m-sec { margin: 0 0 40px; }
h2.m-sec-title { font-size: clamp(19px, 2.6vw, 24px); margin: 0 0 16px; padding-top: 6px; display: flex; gap: 10px; align-items: baseline; }

.def-box { background: var(--acc-soft); border: 1px solid rgba(20, 184, 166, .25); border-radius: var(--r); padding: 16px 18px; margin: 0 0 20px; }
.def-box .t { font: 700 14px/1.3 var(--f-display); color: var(--acc-ink); margin-bottom: 6px; }
.def-box p { margin: 0; }
.def-box p + p { margin-top: .6em; }

.point-list { display: grid; gap: 10px; margin: 0 0 20px; }
.point { display: flex; gap: 14px; align-items: flex-start; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r2); padding: 14px 16px; }
.point > i.ti { flex: none; width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; font-size: 20px; color: var(--acc-ink); background: var(--acc-soft); }
.point .pbody { min-width: 0; }
.point .pbody b { display: block; font-weight: 700; margin-bottom: 2px; }
.point .pbody span { display: block; color: var(--text2); font-size: 15px; }

.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin: 0 0 20px; }
.stat-box { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r2); padding: 14px 16px; }
.stat-box .v { font: 800 clamp(22px, 4vw, 30px)/1.1 var(--f-display); color: var(--acc-ink); letter-spacing: -.02em; }
.stat-box .l { font-size: 13px; color: var(--text2); margin-top: 6px; line-height: 1.4; }

.callout { position: relative; padding: 14px 18px 14px 50px; border-radius: var(--r2); background: var(--bg2); border: 1px solid var(--border); border-left: 3px solid var(--acc); margin: 0 0 20px; }
.callout::before { content: 'i'; position: absolute; left: 16px; top: 15px; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font: 800 13px/1 var(--f-display); color: var(--bg); background: var(--acc); }
.callout.warn { border-left-color: var(--acc2); background: var(--acc2-soft); }
.callout.warn::before { content: '!'; background: var(--acc2); }
.callout.quote { border-left-color: var(--text3); font-style: italic; color: var(--text2); }
.callout.quote::before { content: '\201C'; background: transparent; color: var(--text3); font-size: 30px; top: 14px; }
.callout p { margin: 0; }
.callout p + p { margin-top: .6em; }

.tip { padding: 12px 16px; border-radius: var(--r2); background: var(--ok-soft); color: var(--text); margin: 0 0 20px; border: 1px dashed rgba(16, 185, 129, .4); }
.tip::before { content: 'Порада. '; font-weight: 700; color: var(--ok); }

.formula { font: 600 15px/1.6 var(--f-mono); background: var(--bg3); border: 1px solid var(--border); border-radius: var(--r2); padding: 14px 16px; margin: 0 0 20px; text-align: center; overflow-x: auto; }
.formula .fres { display: block; margin-top: 6px; color: var(--acc-ink); font-weight: 700; }

ol.steps, .steps { list-style: none; counter-reset: st; padding: 0; margin: 0 0 20px; }
.steps > li { counter-increment: st; position: relative; padding: 2px 0 12px 46px; margin: 0; }
.steps > li::before { content: counter(st); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--acc-soft); color: var(--acc-ink); font: 700 14px/1 var(--f-mono); }
.steps > li:not(:last-child)::after { content: ''; position: absolute; left: 15px; top: 34px; bottom: 2px; width: 2px; background: var(--border); }

.table-wrap { overflow-x: auto; margin: 0 0 20px; -webkit-overflow-scrolling: touch; }
table.m-table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 0 0 20px; background: var(--bg2); border-radius: var(--r2); overflow: hidden; }
.table-wrap > table.m-table { margin: 0; }
table.m-table th, table.m-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
table.m-table th { background: var(--bg3); font-weight: 700; font-size: 13px; color: var(--text2); }
table.m-table tr:last-child td { border-bottom: 0; }
@media (max-width: 560px) {
  table.m-table { font-size: 13px; }
  table.m-table th, table.m-table td { padding: 8px; }
}

.terms { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r); padding: 16px 18px; margin: 0 0 20px; }
.terms dl { margin: 0; display: grid; grid-template-columns: minmax(150px, 34%) 1fr; gap: 10px 18px; }
.terms dt { font-weight: 700; color: var(--acc-ink); }
.terms dd { margin: 0; color: var(--text2); }
@media (max-width: 560px) { .terms dl { grid-template-columns: 1fr; gap: 2px; } .terms dd { margin-bottom: 10px; } }

ul.mistakes, .mistakes { list-style: none; padding: 0; margin: 0 0 20px; display: grid; gap: 8px; }
.mistakes > li { position: relative; padding: 10px 14px 10px 42px; border-radius: var(--r2); background: var(--err-soft); }
.mistakes > li::before { content: '\2715'; position: absolute; left: 15px; top: 10px; color: var(--err); font-weight: 800; }

.todo-box { border: 1px solid rgba(245, 158, 11, .35); background: var(--acc2-soft); border-radius: var(--r); padding: 16px 18px; margin: 0 0 20px; }
.todo-box::before { content: 'Що зробити на своїй ділянці'; display: block; font: 700 13px/1.3 var(--f-display); color: var(--acc2); margin-bottom: 8px; letter-spacing: .01em; }
.todo-box ul, .todo-box ol { margin: 0; padding-left: 1.2em; }
.todo-box p:last-child { margin-bottom: 0; }

.selfcheck { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r); padding: 18px; margin: 0 0 24px; }
.selfcheck::before { content: 'Самоперевірка'; display: block; font: 700 14px/1.3 var(--f-display); color: var(--acc-ink); margin-bottom: 12px; }
.sc-q { padding: 12px 0; border-top: 1px solid var(--border); }
.sc-q:first-of-type { border-top: 0; padding-top: 0; }
.sc-q > p { font-weight: 600; margin: 0 0 10px; }
.sc-q ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.sc-q li[data-k] { padding: 10px 14px; border-radius: var(--r2); background: var(--bg3); border: 1px solid var(--border); cursor: pointer; transition: border-color .15s, background .15s; }
.sc-q li[data-k]:hover { border-color: var(--border2); }
.sc-q li.right { border-color: var(--ok); background: var(--ok-soft); }
.sc-q li.wrong { border-color: var(--err); background: var(--err-soft); }
.sc-q.answered li[data-k] { cursor: default; }
.sc-why { display: none; margin-top: 10px; padding: 10px 14px; border-radius: var(--r2); background: var(--acc-soft); color: var(--text2); font-size: 14px; }
.sc-q.answered .sc-why { display: block; }

.sim-slot { margin: 0 0 24px; border-radius: var(--r); border: 1px dashed var(--border2); background: var(--bg2); min-height: 120px; padding: 16px; display: flex; align-items: center; justify-content: center; color: var(--text3); text-align: center; }
.sim-slot iframe { width: 100%; min-height: 560px; border: 0; border-radius: var(--r2); background: var(--bg); }
.sim-slot.filled { display: block; padding: 0; border-style: solid; overflow: hidden; }

/* ===================== ГЛОСАРІЙ ===================== */
article.glossary { max-width: 860px; display: grid; gap: 10px; }
.g-item { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r2); padding: 14px 16px; }
.g-term { font: 700 16px/1.35 var(--f-display); margin: 0 0 6px; }
.g-en { display: inline-block; margin-left: 8px; font: 500 13px/1.3 var(--f-mono); color: var(--text3); }
.g-def { margin: 0; color: var(--text2); font-size: 15px; }

/* ===================== АДАПТИВНІСТЬ ===================== */
@media (max-width: 560px) {
  body { font-size: 15px; }
  .wrap { padding: 0 16px; }
  article.module { font-size: 15.5px; }
  .m-lead { font-size: 16.5px; }
  .card { padding: 16px; }
  .point { padding: 12px; gap: 12px; }
  .callout { padding-left: 44px; }
  .callout::before { left: 13px; }
  .stat-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }
@media print {
  body { background: #fff; color: #000; }
  .topbar, .toast, .banner, .sim-slot { display: none !important; }
}