/* IBG-NET – veřejný web. Barvy značky: modrá #035a9e, tmavší #023f70, akcent #3498db. */
:root {
  --blue: #035a9e; --blue-dark: #023f70; --blue-light: #e8f1f9; --accent: #3498db;
  --text: #2b2b2b; --muted: #6b7280; --line: #dde3ea; --bg: #f5f7fa; --white: #fff;
  --radius: 8px; --shadow: 0 2px 10px rgba(2, 63, 112, .08);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.6 var(--font); color: var(--text); background: var(--bg); overflow-x: clip; }  /* clip (ne hidden) kvůli full-bleed hero a sticky menu */
img { max-width: 100%; height: auto; }
a { color: var(--blue); }
a:hover { color: var(--blue-dark); }
.wrap { max-width: 1140px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }
h1, h2, h3, h4 { line-height: 1.25; color: var(--blue-dark); margin: 1.4em 0 .5em; }
h1 { font-size: 2rem; margin-top: .6em; } h2 { font-size: 1.45rem; } h3 { font-size: 1.15rem; }
code { background: #eef2f6; padding: 1px 5px; border-radius: 4px; font-size: .9em; }

/* ---------- hlavička ---------- */
.site-header { color: #fff; box-shadow: 0 2px 6px rgba(0,0,0,.15); position: relative; z-index: 50; }
/* banner: modrá vlevo přechází do grafiky vpravo (assets/img/header-bg.png, 2558×498) */
.header-top { background: var(--blue) url(img/header-bg.png) no-repeat right center / auto 100%; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 160px; }
.brand img { height: 72px; width: auto; display: block; filter: drop-shadow(0 1px 2px rgba(0,0,0,.25)); }
.header-phone { color: #fff; text-decoration: none; font-weight: 600; font-size: 1.1rem; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.header-phone:hover { color: #cfe3f5; }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 26px; height: 3px; background: #fff; margin: 5px 0; border-radius: 2px; transition: .2s; }
.main-nav { background: var(--blue-dark); position: sticky; top: 0; z-index: 50; }
.main-nav ul { list-style: none; margin: 0 auto; padding: 0; display: flex; flex-wrap: wrap; }
.main-nav > ul > li:first-child > a { padding-left: 0; }
.main-nav > ul > li { position: relative; }
.main-nav a { display: block; padding: 12px 16px; color: #fff; text-decoration: none; font-weight: 600; letter-spacing: .3px; font-size: .95rem; }
.main-nav > ul > li:hover > a, .main-nav > ul > li.active > a { background: var(--blue); }
.main-nav li.external > a { opacity: .9; }
.main-nav .sub { display: none; position: absolute; left: 0; top: 100%; min-width: 230px; background: #fff; box-shadow: var(--shadow); border-radius: 0 0 var(--radius) var(--radius); overflow: hidden; z-index: 60; }
.main-nav .sub a { color: var(--text); font-weight: 500; padding: 10px 16px; border-top: 1px solid var(--line); }
.main-nav .sub a:hover, .main-nav .sub li.active a { background: var(--blue-light); color: var(--blue-dark); }
.main-nav li.has-children:hover .sub, .main-nav li.has-children:focus-within .sub { display: block; }

/* ---------- obsah ---------- */
.site-main { background: #fff; padding: 0 0 48px; min-height: 50vh; }
.page { padding: 16px 0 16px; }
.page-title { margin-top: 0; padding-bottom: .4em; border-bottom: 3px solid var(--blue-light); }
.page-content h2:first-child { margin-top: .3em; }
.page-content img { border-radius: 6px; }
.page-content img.right { float: right; margin: 0 0 16px 24px; max-width: 45%; }
.page-content img.left { float: left; margin: 0 24px 16px 0; max-width: 45%; }
.page-content table { border-collapse: collapse; width: 100%; margin: 1em 0; font-size: .95rem; }
.page-content td, .page-content th { border: 1px solid var(--line); padding: 8px 12px; vertical-align: top; }
.page-content th { background: var(--blue-light); text-align: left; color: var(--blue-dark); }
.page-content tr:nth-child(even) td { background: #fafbfc; }
.page-content .cenik td:last-child { white-space: nowrap; text-align: right; }
.page-content .box { background: var(--blue-light); border-left: 4px solid var(--blue); padding: 12px 18px; border-radius: 0 6px 6px 0; margin: 1em 0; }
.page-content .note-red { color: #c0392b; }
.page-content iframe { max-width: 100%; border: 0; border-radius: 6px; }
.page-content .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.notice { background: #fff6d6; border: 1px solid #f1d78a; padding: 8px 14px; border-radius: 6px; }

/* úvodní stránka: hero + dlaždice */
.page-home { padding-top: 0; }
/* hero přes celou šířku okna, text zarovnaný s obsahem */
.hero { margin: 0 calc(50% - 50vw) 24px; padding: 56px calc(50vw - 50%); background: linear-gradient(120deg, var(--blue-dark), var(--blue) 60%, var(--accent)); color: #fff; }
.hero h1, .hero h2 { color: #fff; margin: 0 0 .3em; font-size: 2.2rem; }
.hero p { font-size: 1.15rem; max-width: 720px; margin: 0 0 1.2em; opacity: .95; }
.hero .btn { background: #fff; color: var(--blue-dark); }
.hero .btn:hover { background: #e8f1f9; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; margin: 24px 0 32px; }
.tile { display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: var(--text); transition: transform .15s, box-shadow .15s; }
.tile:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(2,63,112,.15); color: var(--text); }
.tile img { width: 100%; height: 150px; object-fit: cover; display: block; border-radius: 0; }
.tile h3 { margin: 14px 16px 4px; color: var(--blue); font-size: 1.1rem; }
.tile p { margin: 0 16px 16px; color: var(--muted); font-size: .95rem; }
.btn { display: inline-block; background: var(--blue); color: #fff; padding: 10px 20px; border-radius: 6px; text-decoration: none; font-weight: 600; border: 0; cursor: pointer; }
.btn:hover { background: var(--blue-dark); color: #fff; }
.btn-light { background: #fff; color: var(--blue-dark) !important; }
.btn-light:hover { background: var(--blue-light); color: var(--blue-dark) !important; }

/* seznamy odkazů / dokumentů (z {{links}}) */
.link-group h3 { margin-top: 1.2em; }
.link-list { list-style: none; padding: 0; margin: 0 0 1em; }
.link-list li { padding: 8px 0 8px 34px; border-bottom: 1px solid var(--line); position: relative; }
.link-list li::before { content: "↗"; position: absolute; left: 4px; top: 7px; color: var(--accent); font-weight: 700; }
.link-list li.ext-pdf::before { content: "PDF"; font-size: .6rem; background: #d9534f; color: #fff; border-radius: 3px; padding: 2px 3px; top: 12px; left: 0; }
.link-list li.ext-doc::before, .link-list li.ext-docx::before { content: "DOC"; font-size: .6rem; background: #2b579a; color: #fff; border-radius: 3px; padding: 2px 3px; top: 12px; left: 0; }
.link-list li.ext-xls::before, .link-list li.ext-xlsx::before { content: "XLS"; font-size: .6rem; background: #217346; color: #fff; border-radius: 3px; padding: 2px 3px; top: 12px; left: 0; }
.link-list .note { color: var(--muted); font-size: .9em; margin-left: 6px; }

/* aktuality */
.news-list { margin-top: 16px; }
.news-item { padding: 18px 0; border-bottom: 1px solid var(--line); }
.news-item h3 { margin: 2px 0 8px; }
.news-date { color: var(--muted); font-size: .9rem; }
.news-body p:last-child { margin-bottom: 0; }

/* FAQ pomocí <details> */
.page-content details { border: 1px solid var(--line); border-radius: 6px; padding: 0 16px; margin: 8px 0; background: #fff; }
.page-content summary { cursor: pointer; font-weight: 600; padding: 12px 0; color: var(--blue-dark); }
.page-content details[open] summary { border-bottom: 1px solid var(--line); }

/* ---------- patička ---------- */
.site-footer { background: var(--blue-dark); color: #d6e4f0; font-size: .95rem; margin-top: 24px; }
.site-footer a { color: #fff; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; padding: 36px 16px 20px; }
.site-footer h4 { color: #fff; margin: 0 0 8px; font-size: 1rem; text-transform: uppercase; letter-spacing: .5px; }
.site-footer p { margin: 0 0 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.15); padding: 14px 16px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; font-size: .85rem; color: #a9c2d8; }
.login-box summary { cursor: pointer; list-style: none; opacity: .5; font-size: .8rem; }
.login-box summary::-webkit-details-marker { display: none; }
.login-box summary:hover { opacity: 1; }
.login-form { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.login-form input { padding: 6px 8px; border: 1px solid #5b7f9e; border-radius: 4px; background: #fff; font: inherit; font-size: .85rem; width: 120px; }
.login-form button { padding: 6px 12px; border: 0; border-radius: 4px; background: var(--accent); color: #fff; cursor: pointer; font: inherit; font-size: .85rem; }

.flash { padding: 10px 0; font-weight: 600; }
.flash-ok { background: #d9f2e3; color: #14603a; }
.flash-err { background: #fde2e1; color: #8a1c1c; }

/* ---------- mobil ---------- */
@media (max-width: 860px) {
  .page { padding: 12px 0 16px; }
  .hero { padding-top: 36px; padding-bottom: 36px; }
  .hero h1, .hero h2 { font-size: 1.6rem; }
  h1 { font-size: 1.6rem; }
  .header-phone { font-size: 1rem; }
  .header-top { background-position: 70% center; }
  .header-inner { min-height: 96px; }
  .brand img { height: 48px; }
  .nav-toggle { display: block; }
  .main-nav { display: none; position: static; }
  body.nav-open .main-nav { display: block; }
  .main-nav ul { flex-direction: column; }
  .main-nav .sub { display: block; position: static; background: rgba(255,255,255,.07); box-shadow: none; border-radius: 0; }
  .main-nav .sub a { color: #fff; padding-left: 32px; border-top: 1px solid rgba(255,255,255,.08); }
  .main-nav .sub a:hover { background: var(--blue); color: #fff; }
  .page-content img.right, .page-content img.left { float: none; margin: 12px 0; max-width: 100%; }
  .page-content table { display: block; overflow-x: auto; }
}
@media (max-width: 480px) {
  .brand img { height: 40px; }
  .header-phone span { display: none; }
}
@media print { .site-header, .site-footer, .admin-bar { display: none; } }