/* =========================================================
   ARCHCON statika – archconstatika.cz
   Redesign 2026 – čisté HTML5 + CSS, bez knihoven
   Stejný designový systém jako www.statickyposudek.cz
   ========================================================= */

:root{
    --blue:       #00a2d3;   /* firemní modrá z loga ARCHCON STATIKA */
    --blue-dark:  #007ea8;
    --ink:        #2b2b2b;
    --muted:      #6b6f76;
    --line:       #e6e8ea;
    --bg:         #ffffff;
    --bg-soft:    #f2f8fb;
    --shadow:     0 10px 30px rgba(0,0,0,.08);
    --radius:     14px;
    --wrap:       1120px;
    --font:       "Segoe UI", Roboto, "Helvetica Neue", Arial, system-ui, sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
    margin:0; font-family:var(--font); color:var(--ink); line-height:1.65;
    background:var(--bg); -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:var(--blue-dark); text-decoration:none; }
a:hover{ text-decoration:underline; }
.wrap{ width:100%; max-width:var(--wrap); margin:0 auto; padding:0 24px; }

h1,h2,h3,h4{ line-height:1.2; color:var(--ink); font-weight:700; }
h1{ font-size:clamp(2rem, 4vw, 3rem); margin:0 0 .5em; }
h2{ font-size:clamp(1.5rem, 3vw, 2.1rem); margin:0 0 .6em; }
h3{ font-size:1.2rem; margin:0 0 .4em; }
p{ margin:0 0 1.1em; }
.lead{ font-size:1.12rem; color:var(--muted); }
.muted{ color:var(--muted); }
.small{ font-size:.9rem; }

/* ---------- Header ---------- */
.site-header{
    position:sticky; top:0; z-index:100;
    background:rgba(255,255,255,.92); backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
}
.site-header .wrap{ display:flex; align-items:center; justify-content:space-between; min-height:74px; gap:20px; }
.brand{ display:flex; align-items:center; gap:14px; }
.brand:hover{ text-decoration:none; }
.brand img{ height:42px; width:auto; }
.brand .brand-txt{ font-size:.82rem; color:var(--muted); line-height:1.25; }
.brand .brand-txt strong{ color:var(--ink); display:block; font-size:.95rem; }
.nav{ display:flex; align-items:center; gap:26px; }
.nav a{ color:var(--ink); font-weight:600; font-size:.95rem; white-space:nowrap; }
.nav a:hover, .nav a.active{ color:var(--blue-dark); text-decoration:none; }
.nav a.active{ box-shadow:inset 0 -2px 0 var(--blue); }

.btn{
    display:inline-block; background:var(--blue); color:#fff;
    padding:12px 22px; border-radius:999px; font-weight:700; line-height:1.3;
    border:none; cursor:pointer; transition:background .2s, transform .2s;
    box-shadow:0 6px 16px rgba(0,162,211,.35);
}
.btn:hover{ background:var(--blue-dark); text-decoration:none; transform:translateY(-1px); color:#fff; }
.nav a.btn{ color:#fff; }
.nav a.btn:hover{ color:#fff; }
.btn-ghost{ background:transparent; color:var(--ink); border:2px solid var(--line); box-shadow:none; padding:10px 20px; }
.btn-ghost:hover{ background:var(--bg-soft); color:var(--ink); border-color:var(--blue); }
.btn-sm{ padding:9px 16px; font-size:.9rem; }

.nav-toggle{ display:none; background:none; border:0; cursor:pointer; padding:8px; }
.nav-toggle span{ display:block; width:26px; height:3px; background:var(--ink); margin:5px 0; border-radius:2px; transition:.3s; }

/* ---------- Hero (homepage) ---------- */
.hero{
    position:relative; color:#fff;
    background:linear-gradient(rgba(10,20,30,.66), rgba(10,20,30,.55)),
               url("../img/hero.jpg") center/cover no-repeat;
}
.hero .wrap{ padding-top:104px; padding-bottom:104px; max-width:860px; }
.hero h1{ color:#fff; }
.hero p{ font-size:1.2rem; color:#f0f2ea; max-width:640px; }
.hero .actions{ display:flex; gap:14px; flex-wrap:wrap; margin-top:26px; }
.hero .actions .btn-ghost{ color:#fff; border-color:rgba(255,255,255,.6); }
.hero .actions .btn-ghost:hover{ background:rgba(255,255,255,.12); border-color:#fff; }

/* ---------- Page head (subpages) ---------- */
.page-head{ background:var(--bg-soft); border-bottom:1px solid var(--line); }
.page-head .wrap{ padding-top:56px; padding-bottom:48px; max-width:860px; }
.page-head h1{ margin-bottom:.35em; }
.page-head .lead{ margin:0; }
.crumbs{ font-size:.85rem; color:var(--muted); margin-bottom:14px; }
.crumbs a{ color:var(--muted); }
.crumbs span{ margin:0 6px; }

/* ---------- Trust bar ---------- */
.trust{ background:var(--bg-soft); border-bottom:1px solid var(--line); }
.trust .wrap{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; padding-top:34px; padding-bottom:34px; text-align:center; }
.trust .num{ font-size:2rem; font-weight:800; color:var(--blue-dark); line-height:1.15; }
.trust .lbl{ color:var(--muted); font-size:.95rem; margin-top:6px; }

/* ---------- Sections ---------- */
section{ padding:72px 0; }
section.tight{ padding:48px 0; }
.section-head{ max-width:720px; margin:0 auto 48px; text-align:center; }
.section-head.left{ margin-left:0; text-align:left; }
.section-head p{ color:var(--muted); font-size:1.08rem; }
.section-head p:last-child{ margin-bottom:0; }
.eyebrow{ display:inline-block; text-transform:uppercase; letter-spacing:.14em; font-size:.78rem; font-weight:700; color:var(--blue-dark); margin-bottom:10px; }
.bg-soft{ background:var(--bg-soft); }
.center{ text-align:center; }

.split{ display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:center; }
.split.rev > :first-child{ order:2; }
.split img{ border-radius:var(--radius); box-shadow:var(--shadow); }
.split.top{ align-items:start; }

/* cards */
.cards{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.cards.two{ grid-template-columns:repeat(2,1fr); }
.card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:30px; transition:transform .2s, box-shadow .2s; }
.card:hover{ transform:translateY(-4px); box-shadow:var(--shadow); }
.card .ico{ width:52px; height:52px; border-radius:12px; background:var(--bg-soft); display:grid; place-items:center; margin-bottom:16px; color:var(--blue-dark); }
.card .ico svg{ width:26px; height:26px; }
.card p{ color:var(--muted); margin:0; }
.card p + p{ margin-top:.6em; }
.card .more{ display:inline-block; margin-top:14px; font-weight:700; }
a.card{ color:inherit; display:block; }
a.card:hover{ text-decoration:none; }
.card.img{ padding:0; overflow:hidden; }
.card.img img{ height:200px; width:100%; object-fit:cover; }
.card.img .body{ padding:24px 26px 28px; }

/* stage chips (DUR, DSP...) */
.stages{ display:grid; grid-template-columns:repeat(2,1fr); gap:12px; }
.stage{ background:#fff; border:1px solid var(--line); border-radius:12px; padding:14px 16px; display:flex; gap:14px; align-items:center; }
.stage b{ color:var(--blue-dark); font-size:1.05rem; min-width:56px; }
.stage span{ color:var(--muted); font-size:.95rem; line-height:1.35; }

/* check-list */
.check-list{ list-style:none; padding:0; margin:0 0 1.2em; display:grid; gap:12px; }
.check-list li{ position:relative; padding-left:34px; }
.check-list li::before{
    content:"✓"; position:absolute; left:0; top:2px; width:22px; height:22px; border-radius:50%;
    background:var(--blue); color:#fff; font-size:.8rem; font-weight:700; display:grid; place-items:center;
}

/* prose (long text pages) */
.prose{ max-width:760px; }
.prose h2{ margin-top:2em; font-size:1.55rem; }
.prose h2:first-child{ margin-top:0; }
.prose h3{ margin-top:1.6em; color:var(--blue-dark); font-size:1.15rem; }
.prose ul{ padding-left:1.3em; }
.prose li{ margin-bottom:.35em; }
.prose figure{ margin:1.6em 0; }
.prose figure img{ border-radius:12px; box-shadow:var(--shadow); }
.prose figure.row{ display:flex; gap:14px; flex-wrap:wrap; align-items:flex-start; }
.prose figure.row img{ flex:1 1 200px; width:auto; max-width:100%; max-height:360px; object-fit:contain; background:#fff; }
.prose figcaption{ font-size:.88rem; color:var(--muted); margin-top:10px; width:100%; }
.prose blockquote{ margin:1.4em 0; padding:18px 24px; border-left:4px solid var(--blue); background:var(--bg-soft); border-radius:0 12px 12px 0; font-style:italic; }
.prose blockquote p:last-child{ margin:0; }

/* layout with sidebar */
.with-aside{ display:grid; grid-template-columns:minmax(0,1fr) 300px; gap:56px; align-items:start; }
.aside{ position:sticky; top:96px; }
.aside-box{ background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--radius); padding:24px; margin-bottom:20px; }
.aside-box h3{ font-size:.9rem; text-transform:uppercase; letter-spacing:.08em; color:var(--blue-dark); margin-bottom:12px; }
.aside-box ul{ list-style:none; padding:0; margin:0; display:grid; gap:8px; }
.aside-box li a{ color:var(--ink); font-weight:600; }
.aside-box li a:hover{ color:var(--blue-dark); }
.aside-box p:last-child{ margin:0; }

/* people */
.people{ display:grid; grid-template-columns:repeat(2,1fr); gap:26px; }
.person{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:30px; }
.person .role{ color:var(--muted); margin-bottom:14px; }
.person .tag{ display:inline-block; background:var(--bg-soft); color:var(--blue-dark); border-radius:999px; padding:4px 12px; font-size:.82rem; font-weight:700; margin-bottom:14px; }
.person ul{ list-style:none; padding:0; margin:0; display:grid; gap:6px; }
.person li{ color:var(--muted); }
.person li a{ font-weight:600; }
.person .initials{ width:60px; height:60px; border-radius:50%; background:var(--blue); color:#fff; font-weight:800; font-size:1.3rem; display:grid; place-items:center; margin-bottom:16px; }

/* logos */
.logos{ display:flex; gap:40px; align-items:center; justify-content:center; flex-wrap:wrap; }
.logos img{ height:auto; width:auto; max-height:44px; max-width:150px; filter:grayscale(1); opacity:.75; transition:.2s; }
.logos img:hover{ filter:none; opacity:1; }

/* ---------- Gallery / lightbox ---------- */
.gallery{ display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
.gallery a{ display:block; overflow:hidden; border-radius:12px; }
.gallery img{ height:220px; width:100%; object-fit:cover; transition:transform .4s; }
.gallery a:hover img{ transform:scale(1.06); }

.albums{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.album{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; transition:transform .2s, box-shadow .2s; }
.album:hover{ transform:translateY(-4px); box-shadow:var(--shadow); }
.album .cover{ display:block; overflow:hidden; }
.album .cover img{ height:200px; width:100%; object-fit:cover; transition:transform .4s; }
.album:hover .cover img{ transform:scale(1.05); }
.album .meta{ padding:16px 18px 18px; display:flex; justify-content:space-between; align-items:baseline; gap:10px; }
.album h3{ font-size:1.02rem; margin:0; }
.album .count{ color:var(--muted); font-size:.85rem; white-space:nowrap; }
.album .hidden-photos{ display:none; }
.album:target{ outline:3px solid var(--blue); outline-offset:3px; }
.cat-head{ display:flex; align-items:baseline; justify-content:space-between; gap:20px; margin:0 0 24px; flex-wrap:wrap; }
.cat-head h2{ margin:0; }
.cat-head p{ margin:0; color:var(--muted); }
.cat-nav{ display:flex; gap:10px; flex-wrap:wrap; justify-content:center; margin-top:8px; }
.cat-nav a{ background:#fff; border:1px solid var(--line); border-radius:999px; padding:8px 16px; font-weight:600; color:var(--ink); font-size:.92rem; }
.cat-nav a:hover{ border-color:var(--blue); color:var(--blue-dark); text-decoration:none; }

.lbx{ position:fixed; inset:0; background:rgba(0,0,0,.92); display:none; z-index:200; align-items:center; justify-content:center; flex-direction:column; padding:20px; }
.lbx.open{ display:flex; }
.lbx img{ max-width:min(92vw,1100px); max-height:80vh; border-radius:8px; box-shadow:0 20px 60px rgba(0,0,0,.5); object-fit:contain; }
.lbx .cap{ color:#cfd3d6; margin-top:14px; font-size:.95rem; text-align:center; }
.lbx .cap b{ color:#fff; }
.lbx button{ position:absolute; background:rgba(255,255,255,.1); border:0; color:#fff; cursor:pointer; border-radius:50%; width:48px; height:48px; font-size:1.6rem; line-height:1; display:grid; place-items:center; transition:background .2s; }
.lbx button:hover{ background:rgba(255,255,255,.25); }
.lbx .close{ top:18px; right:22px; }
.lbx .prev{ left:18px; top:50%; transform:translateY(-50%); }
.lbx .next{ right:18px; top:50%; transform:translateY(-50%); }

/* ---------- Contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:stretch; }
.contact-grid iframe{ width:100%; height:100%; min-height:380px; border:0; border-radius:var(--radius); box-shadow:var(--shadow); }
.contact-grid dl{ display:grid; grid-template-columns:150px 1fr; gap:10px 16px; margin:0; }
.contact-grid dt{ color:var(--muted); }
.contact-grid dd{ margin:0; font-weight:600; }
.contact-grid dd .big{ font-size:1.3rem; }

/* ---------- CTA ---------- */
.cta{ background:linear-gradient(135deg, var(--blue), var(--blue-dark)); color:#fff; text-align:center; }
.cta h2{ color:#fff; }
.cta p{ color:#dff2fa; max-width:600px; margin:0 auto 24px; }
.cta .phone{ font-size:2rem; font-weight:800; color:#fff; }
.cta .phone a{ color:#fff; }
.cta .eyebrow{ color:#dff2fa; }
.cta .btn{ background:#fff; color:var(--blue-dark); box-shadow:none; }
.cta .btn:hover{ background:var(--ink); color:#fff; }
.cta .actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }
.cta .btn-ghost{ background:transparent; color:#fff; border:2px solid rgba(255,255,255,.6); }
.cta .btn-ghost:hover{ background:rgba(255,255,255,.12); border-color:#fff; color:#fff; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--ink); color:#c7cbc1; padding:52px 0 28px; font-size:.92rem; }
.site-footer .cols{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:36px; margin-bottom:32px; }
.site-footer h4{ color:#fff; font-size:1rem; margin:0 0 14px; }
.site-footer a{ color:#c7cbc1; }
.site-footer a:hover{ color:var(--blue); }
.site-footer ul{ list-style:none; padding:0; margin:0; display:grid; gap:8px; }
.site-footer .bottom{ border-top:1px solid rgba(255,255,255,.12); padding-top:20px; text-align:center; color:#8b9083; }

/* ---------- Responsive ---------- */
@media (max-width:1060px){ .brand .brand-txt{ display:none; } }
@media (max-width:900px){
    .nav{
        position:fixed; inset:74px 0 auto 0; flex-direction:column; gap:0; align-items:stretch;
        background:#fff; border-bottom:1px solid var(--line);
        transform:translateY(-140%); transition:transform .3s; padding:10px 0;
    }
    .nav.open{ transform:translateY(0); box-shadow:var(--shadow); }
    .nav a{ padding:14px 24px; width:100%; }
    .nav a.active{ box-shadow:none; color:var(--blue-dark); }
    .nav .btn{ margin:12px 24px; width:auto; text-align:center; }
    .nav-toggle{ display:block; }
    .split, .split.rev{ grid-template-columns:1fr; gap:32px; }
    .split.rev > :first-child{ order:0; }
    .cards, .cards.two, .people{ grid-template-columns:1fr; }
    .trust .wrap{ grid-template-columns:repeat(2,1fr); gap:28px; }
    .gallery, .albums{ grid-template-columns:repeat(2,1fr); }
    .site-footer .cols{ grid-template-columns:1fr 1fr; }
    .with-aside{ grid-template-columns:1fr; }
    .aside{ position:static; }
    .contact-grid{ grid-template-columns:1fr; }
    .stages{ grid-template-columns:1fr; }
    .hero .wrap{ padding-top:72px; padding-bottom:72px; }
}
@media (max-width:520px){
    .gallery, .albums{ grid-template-columns:1fr; }
    .site-footer .cols{ grid-template-columns:1fr; }
    .contact-grid dl{ grid-template-columns:1fr; gap:2px 0; }
    .contact-grid dt{ margin-top:10px; }
    .brand .brand-txt{ display:none; }
    .trust .wrap{ grid-template-columns:1fr; }
}