/* ============================================================
   Strechárovo s.r.o. — Dizajn systém
   Foundations + components, derived from the visual identity.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700;800;900&family=Hanken+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  /* ---- Brand core ---- */
  --graphite:     #2B3338;
  --graphite-2:   #1C2226;
  --oak:          #9D7746;   /* Brass Gold — hlavná farba značky */
  --oak-deep:     #7C5D35;
  --oak-soft:     #EDE4D3;
  --rust:         #BD5A2A;   /* sekundárny akcent */
  --rust-deep:    #9E4521;
  --brass:        #9D7746;   /* zlatá mosadz — teplý kovový akcent */
  --brass-deep:   #7C5D35;
  --brass-soft:   #E6D6BD;
  --ocean:        #1F2D4D;
  --ocean-deep:   #16213A;
  --ocean-bright: #5878B4;
  --steel:        #6E7B83;
  --steel-light:  #AAB4BA;

  /* ---- Neutrals ---- */
  --paper:        #F8F9FA;
  --paper-warm:   #EEF0F2;
  --white:        #FFFFFF;
  --ink:          #1C2226;
  --line:         rgba(43,51,56,.12);
  --line-soft:    rgba(43,51,56,.08);

  /* ---- Semantic ---- */
  --ok:           #3F7A52;
  --warn:         #BD5A2A;
  --err:          #B23A2E;

  /* ---- Type ---- */
  --display: 'Archivo', system-ui, sans-serif;
  --text:    'Hanken Grotesk', system-ui, sans-serif;
  --mono:    'JetBrains Mono', ui-monospace, monospace;

  /* ---- Spacing scale (4px base) ---- */
  --s1: 4px;  --s2: 8px;  --s3: 12px; --s4: 16px;
  --s5: 24px; --s6: 32px; --s7: 48px; --s8: 64px; --s9: 96px;

  /* ---- Radius ---- */
  --r-sm: 4px; --r-md: 8px; --r-lg: 14px; --r-pill: 999px;

  /* ---- Shadow ---- */
  --sh-1: 0 2px 6px rgba(28,34,38,.08);
  --sh-2: 0 10px 26px rgba(28,34,38,.12);
  --sh-3: 0 24px 50px rgba(31,45,77,.22);

  --maxw: 1180px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0; background: var(--paper); color: var(--ink);
  font-family: var(--text); font-size:17px; line-height:1.6;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
::selection{ background: var(--oak); color: var(--white); }
img{ max-width:100%; }

.wrap{ max-width: var(--maxw); margin:0 auto; padding:0 40px; }
section{ padding: 96px 0; border-top:1px solid var(--line); }
section:first-of-type{ border-top:none; }

.eyebrow{
  font-family: var(--mono); font-size:12.5px; letter-spacing:.14em;
  text-transform:uppercase; color: var(--ocean-bright);
  display:flex; align-items:center; gap:12px; margin:0 0 22px;
}
.eyebrow::before{ content:""; width:26px; height:1.5px; background:var(--oak); display:inline-block; }

h2.sec-title{
  font-family: var(--display); font-weight:800; font-size:clamp(28px,3.6vw,42px);
  line-height:1.05; letter-spacing:-.02em; margin:0 0 18px; color:var(--ocean-deep); max-width:20ch;
}
.lead{ font-size:clamp(17px,1.5vw,20px); line-height:1.55; color:var(--graphite); max-width:62ch; margin:0 0 8px; }
p{ text-wrap: pretty; }

.sub{
  font-family:var(--mono); font-size:11px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--steel); margin:54px 0 22px; display:flex; align-items:center; gap:12px;
}
.sub::after{ content:""; flex:1; height:1px; background:var(--line); }

/* ============================================================ TOPBAR ============================================================ */
.topbar{
  position:sticky; top:0; z-index:50; background:rgba(244,241,234,.86);
  backdrop-filter:blur(12px); border-bottom:1px solid var(--line);
}
.topbar .wrap{ display:flex; align-items:center; justify-content:space-between; height:62px; }
.topbar .brand{
  display:flex; align-items:center; gap:11px; font-family:var(--display); font-weight:800;
  letter-spacing:-.01em; color:var(--ocean-deep); font-size:17px;
}
.topbar nav{ display:flex; gap:26px; }
.topbar nav a{
  font-family:var(--mono); font-size:12px; letter-spacing:.06em; text-transform:uppercase;
  text-decoration:none; color:var(--steel); transition:color .18s;
}
.topbar nav a:hover{ color:var(--ocean); }
@media (max-width:820px){ .topbar nav{ display:none; } }

/* ============================================================ COVER ============================================================ */
.cover{ background:var(--ocean); color:var(--white); border-top:none; position:relative; overflow:hidden; padding:0; }
.cover .inner{ max-width:var(--maxw); margin:0 auto; padding:120px 40px 104px; position:relative; z-index:2; }
.cover .blueprint{
  position:absolute; inset:0; z-index:1; opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(120% 90% at 78% 28%, #000 35%, transparent 80%);
          mask-image:radial-gradient(120% 90% at 78% 28%, #000 35%, transparent 80%);
}
.cover .kicker{ font-family:var(--mono); font-size:13px; letter-spacing:.22em; text-transform:uppercase; color:var(--oak); margin:0 0 28px; }
.cover h1{ font-family:var(--display); font-weight:900; font-size:clamp(42px,7.5vw,86px); line-height:.95; letter-spacing:-.035em; margin:0; color:var(--white); }
.cover .tagline{ margin-top:30px; max-width:54ch; font-size:clamp(17px,1.7vw,20px); color:rgba(255,255,255,.82); line-height:1.55; }
.cover .cover-logo{ position:absolute; right:-40px; top:50%; transform:translateY(-50%); width:380px; z-index:1; opacity:.14; }
@media (max-width:900px){ .cover .cover-logo{ display:none; } }

/* ============================================================ COLOR TOKENS ============================================================ */
.swatches{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.swatches.cols-5{ grid-template-columns:repeat(5,1fr); }
.sw{ border:1px solid var(--line); background:var(--white); display:flex; flex-direction:column; overflow:hidden; border-radius:var(--r-md); }
.sw .chip{ height:128px; position:relative; }
.sw .chip .role{
  position:absolute; left:14px; bottom:12px; font-family:var(--mono); font-size:10.5px;
  letter-spacing:.1em; text-transform:uppercase; color:rgba(255,255,255,.85);
}
.sw .chip.lite .role{ color:rgba(28,34,38,.6); }
.sw .meta{ padding:14px 16px 16px; }
.sw .meta .name{ font-family:var(--display); font-weight:700; font-size:15px; color:var(--ocean-deep); margin-bottom:8px; }
.sw .meta dl{ margin:0; display:grid; grid-template-columns:auto 1fr; gap:3px 10px; }
.sw .meta dt{ font-family:var(--mono); font-size:10px; letter-spacing:.06em; color:var(--steel); text-transform:uppercase; }
.sw .meta dd{ margin:0; font-family:var(--mono); font-size:11px; color:var(--graphite); }
@media (max-width:920px){ .swatches, .swatches.cols-5{ grid-template-columns:repeat(2,1fr); } }
/* tint scale */
.scale{ display:flex; border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden; }
.scale .step{ flex:1; height:74px; display:flex; align-items:flex-end; padding:8px 10px; font-family:var(--mono); font-size:9.5px; letter-spacing:.04em; }

.note{
  margin-top:26px; padding:18px 22px; background:var(--paper-warm);
  border-left:3px solid var(--oak); font-size:15px; color:var(--graphite); max-width:74ch; border-radius:0 var(--r-sm) var(--r-sm) 0;
}

/* ============================================================ TYPOGRAPHY ============================================================ */
.type-families{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.fam{ border:1px solid var(--line); background:var(--white); border-radius:var(--r-md); padding:28px 26px; }
.fam .flabel{ font-family:var(--mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--ocean-bright); margin-bottom:18px; display:flex; justify-content:space-between; }
.fam .big{ font-size:58px; line-height:.95; color:var(--ocean-deep); margin:0 0 14px; }
.fam .desc{ font-size:14.5px; color:var(--graphite); line-height:1.5; margin:0 0 16px; }
.fam .glyphs{ font-size:15px; color:var(--steel); border-top:1px solid var(--line); padding-top:14px; letter-spacing:.02em; word-spacing:.1em; }
@media (max-width:920px){ .type-families{ grid-template-columns:1fr; } }

.tscale{ border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden; background:var(--white); }
.tscale .row{ display:flex; align-items:baseline; gap:24px; padding:18px 26px; border-top:1px solid var(--line-soft); }
.tscale .row:first-child{ border-top:none; }
.tscale .row .tk{ font-family:var(--mono); font-size:11px; color:var(--steel); width:140px; flex-shrink:0; letter-spacing:.04em; }
.tscale .row .ex{ font-family:var(--display); color:var(--ocean-deep); line-height:1.1; letter-spacing:-.02em; min-width:0; }

/* ============================================================ SPACING / RADIUS / SHADOW ============================================================ */
.spacing{ display:flex; flex-direction:column; gap:12px; border:1px solid var(--line); border-radius:var(--r-md); background:var(--white); padding:22px 26px; }
.spacing .srow{ display:flex; align-items:center; gap:18px; }
.spacing .srow .lab{ font-family:var(--mono); font-size:11px; color:var(--steel); width:120px; flex-shrink:0; }
.spacing .srow .bar{ height:16px; background:var(--oak); border-radius:2px; }

.cards-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
@media (max-width:820px){ .cards-3{ grid-template-columns:1fr; } }
.tile{ border:1px solid var(--line); background:var(--white); border-radius:var(--r-md); padding:26px; }
.tile h4{ font-family:var(--display); font-weight:700; font-size:16px; color:var(--ocean-deep); margin:0 0 16px; }
.radii{ display:flex; gap:14px; align-items:flex-end; flex-wrap:wrap; }
.radii .rb{ width:62px; height:62px; background:var(--ocean); border:1px solid var(--ocean-deep); }
.radii .lab, .shadow-list .lab{ font-family:var(--mono); font-size:10px; color:var(--steel); display:block; margin-top:8px; letter-spacing:.04em; }
.shadow-list{ display:flex; gap:22px; flex-wrap:wrap; }
.shadow-list .shb{ width:96px; height:62px; background:var(--white); border-radius:var(--r-md); }

/* ============================================================ MARKERS / DIVIDERS ============================================================ */
.markers{ display:flex; gap:40px; flex-wrap:wrap; align-items:flex-start; }
.marker-demo{ display:flex; flex-direction:column; gap:14px; }
.diamond{ width:8px; height:8px; background:var(--oak); transform:rotate(45deg); }
.craft-strip{
  display:flex; flex-wrap:wrap; gap:14px 28px; font-family:var(--mono); font-size:12.5px;
  letter-spacing:.1em; text-transform:uppercase; color:var(--steel);
}
.craft-strip span{ display:flex; align-items:center; gap:10px; }
.craft-strip span::before{ content:""; width:7px; height:7px; background:var(--oak); transform:rotate(45deg); display:inline-block; }

/* ============================================================ COMPONENTS: BUTTONS ============================================================ */
.btn{
  font-family:var(--display); font-weight:700; font-size:15px; letter-spacing:.01em;
  border:1px solid transparent; border-radius:var(--r-sm); padding:12px 22px; cursor:pointer;
  display:inline-flex; align-items:center; gap:9px; transition:all .16s ease; text-decoration:none; line-height:1;
}
.btn-primary{ background:var(--oak); color:var(--white); }
.btn-primary:hover{ background:var(--oak-deep); }
.btn-secondary{ background:var(--ocean); color:var(--white); }
.btn-secondary:hover{ background:var(--ocean-deep); }
.btn-outline{ background:transparent; color:var(--ocean-deep); border-color:rgba(43,51,56,.25); }
.btn-outline:hover{ border-color:var(--ocean); background:var(--white); }
.btn-ghost{ background:transparent; color:var(--oak-deep); }
.btn-ghost:hover{ background:var(--oak-soft); }
.btn-sm{ font-size:13px; padding:9px 16px; }
.btn-lg{ font-size:17px; padding:15px 30px; }
.btn[disabled]{ opacity:.4; cursor:not-allowed; }
.btn .chev{ font-family:var(--mono); }

.specimen-row{ display:flex; flex-wrap:wrap; gap:14px; align-items:center; }
.demo-box{ border:1px solid var(--line); background:var(--white); border-radius:var(--r-md); padding:30px 32px; }
.demo-box.on-ocean{ background:var(--ocean); }

/* ============================================================ BADGES / CHIPS ============================================================ */
.badge{
  font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase;
  padding:6px 11px; border-radius:var(--r-sm); display:inline-flex; align-items:center; gap:7px; line-height:1;
}
.badge-rust{ background:var(--oak-soft); color:var(--oak-deep); }
.badge-navy{ background:rgba(31,45,77,.12); color:var(--ocean); }
.badge-steel{ background:rgba(110,123,131,.16); color:var(--graphite); }
.badge-ok{ background:rgba(63,122,82,.14); color:var(--ok); }
.badge-outline{ background:transparent; border:1px solid rgba(43,51,56,.22); color:var(--steel); }
.tag{
  font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase;
  color:var(--steel); border:1px solid rgba(43,51,56,.18); padding:7px 12px; white-space:nowrap; border-radius:var(--r-sm);
}

/* ============================================================ CARDS ============================================================ */
.ccard{ border:1px solid var(--line); background:var(--white); border-radius:var(--r-md); overflow:hidden; box-shadow:var(--sh-1); }
.ccard .ch{ padding:22px 24px; border-bottom:1px solid var(--line-soft); background:var(--paper-warm); }
.ccard .num{ font-family:var(--mono); font-size:11px; color:var(--oak-deep); letter-spacing:.08em; margin-bottom:12px; }
.ccard h3{ font-family:var(--display); font-weight:700; font-size:19px; margin:0 0 0; color:var(--ocean-deep); letter-spacing:-.01em; }
.ccard .cb{ padding:22px 24px; }
.ccard .cb p{ margin:0; font-size:15px; color:var(--graphite); line-height:1.55; }
.ccard .cf{ padding:16px 24px; border-top:1px solid var(--line-soft); display:flex; justify-content:space-between; align-items:center; }

/* ============================================================ FORMS ============================================================ */
.field{ display:flex; flex-direction:column; gap:8px; max-width:340px; }
.field label{ font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--steel); }
.field input, .field select, .field textarea{
  font-family:var(--text); font-size:15px; color:var(--ink); background:var(--white);
  border:1px solid rgba(43,51,56,.22); border-radius:var(--r-sm); padding:11px 14px; outline:none; transition:border-color .16s, box-shadow .16s;
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--ocean); box-shadow:0 0 0 3px rgba(88,120,180,.18); }
.field .hint{ font-size:13px; color:var(--steel); }

/* ============================================================ ALERTS ============================================================ */
.alert{ border-radius:var(--r-md); padding:16px 20px; display:flex; gap:14px; align-items:flex-start; font-size:15px; line-height:1.5; }
.alert .ai{ width:8px; height:8px; transform:rotate(45deg); margin-top:7px; flex-shrink:0; }
.alert-info{ background:rgba(88,120,180,.1); color:var(--ocean); }
.alert-info .ai{ background:var(--ocean-bright); }
.alert-ok{ background:rgba(63,122,82,.12); color:var(--ok); }
.alert-ok .ai{ background:var(--ok); }
.alert-warn{ background:var(--oak-soft); color:var(--oak-deep); }
.alert-warn .ai{ background:var(--oak); }
.alert b{ font-family:var(--display); }

/* ============================================================ TABLE ============================================================ */
.dtable{ width:100%; border-collapse:collapse; background:var(--white); border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden; font-size:14.5px; }
.dtable th{ text-align:left; font-family:var(--mono); font-size:10px; letter-spacing:.08em; text-transform:uppercase; color:var(--steel); background:var(--paper-warm); padding:12px 18px; border-bottom:1px solid var(--line); }
.dtable th.r, .dtable td.r{ text-align:right; }
.dtable td{ padding:13px 18px; border-bottom:1px solid var(--line-soft); color:var(--graphite); }
.dtable tr:last-child td{ border-bottom:none; }
.dtable .amt{ font-family:var(--display); font-weight:700; color:var(--oak); }

/* ============================================================ LOGO REF ============================================================ */
.logo-ref{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.logo-ref .lv{ border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden; background:#fff; }
.logo-ref .lv .stage{ display:flex; align-items:center; justify-content:center; padding:30px; min-height:150px; }
.logo-ref .s-white{ background:#fff; } .logo-ref .s-paper{ background:var(--paper); }
.logo-ref .s-ocean{ background:var(--ocean); } .logo-ref .s-graphite{ background:var(--graphite); }
.logo-ref .lv img{ max-height:110px; max-width:100%; height:auto; }
.logo-ref .cap{ padding:12px 16px; border-top:1px solid var(--line-soft); font-family:var(--mono); font-size:10.5px; letter-spacing:.06em; text-transform:uppercase; color:var(--steel); }
@media (max-width:880px){ .logo-ref{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:520px){ .logo-ref{ grid-template-columns:1fr; } }

/* ============================================================ FOOTER ============================================================ */
footer.foot{
  background:var(--ocean-deep); color:var(--steel-light); padding:30px 0;
  font-family:var(--mono); font-size:12px; letter-spacing:.06em; border-top:1px solid rgba(255,255,255,.1);
}
footer.foot .wrap{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }
footer.foot a{ color:var(--steel-light); }