/* ============================================================
   AB ARCO — Design System · Colors & Type Foundations
   Brand: AB Arco, spol. s r.o. (člen skupiny ARCO)
   Microwave road repair · concrete rehab · structural strengthening
   ============================================================ */

/* ---- Webfonts (Google Fonts) -----------------------------------
   No custom brand font files were provided. The ABARCO logo uses a
   heavy, squared/blocky display face; the nearest robust match with
   full Czech diacritics is Archivo (display). IBM Plex Sans (body)
   and IBM Plex Mono (technical specs) round out the system.
   ---------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Archivo:ital,wght@0,400..900;1,400..900&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* ---------- BRAND CORE ---------- */
  --abarco-navy:        #001A4D;  /* primary — sampled from logo */
  --abarco-green:       #47971C;  /* secondary — sampled from logo */

  /* ---------- NAVY SCALE ---------- */
  --navy-900: #00102E;
  --navy-800: #001A4D;  /* brand navy */
  --navy-700: #062463;
  --navy-600: #123A86;
  --navy-500: #1F4FA6;
  --navy-300: #6E8BC4;
  --navy-100: #D6DEEE;
  --navy-050: #EDF1F8;

  /* ---------- GREEN SCALE ---------- */
  --green-900: #2C5E11;
  --green-700: #3A7C16;
  --green-600: #47971C;  /* brand green */
  --green-500: #59AC2C;
  --green-300: #97CE75;
  --green-100: #DCEFCF;
  --green-050: #F0F8E9;

  /* ---------- NEUTRALS (asphalt grays) ---------- */
  --ink:        #0C1320;  /* near-black asphalt */
  --slate-900:  #1A2230;
  --slate-700:  #3A4456;
  --slate-500:  #69748A;  /* secondary text */
  --slate-400:  #8A94A6;
  --slate-300:  #C2C9D4;
  --slate-200:  #DDE2EA;
  --slate-100:  #ECEFF4;
  --slate-050:  #F5F7FA;  /* page wash */
  --white:      #FFFFFF;

  /* ---------- FUNCTIONAL ---------- */
  --hazard:     #F2A900;  /* signage amber — used sparingly for emphasis */
  --hazard-bg:  #FFF6E0;
  --success:    #47971C;
  --danger:     #C0392B;

  /* ---------- SEMANTIC: SURFACES & TEXT ---------- */
  --bg-page:        var(--slate-050);
  --bg-surface:     var(--white);
  --bg-inverse:     var(--navy-800);
  --bg-inverse-2:   var(--navy-900);

  --fg-1:           var(--ink);        /* primary text */
  --fg-2:           var(--slate-500);  /* secondary text */
  --fg-3:           var(--slate-400);  /* muted / captions */
  --fg-on-navy:     #FFFFFF;
  --fg-on-navy-2:   #B7C2DC;
  --fg-on-green:    #FFFFFF;
  --fg-brand:       var(--navy-800);
  --fg-accent:      var(--green-600);

  --border:         var(--slate-200);
  --border-strong:  var(--slate-300);
  --border-on-navy: rgba(255,255,255,0.16);

  /* ---------- TYPE FAMILIES ---------- */
  --font-display: 'Archivo', 'Arial Narrow', system-ui, sans-serif;
  --font-body:    'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SFMono-Regular', monospace;

  /* ---------- TYPE TOKENS ---------- */
  /* Display headings use Archivo, heavy + wide + tight tracking to echo the blocky logo */
  --display-weight: 800;
  --display-tracking: -0.01em;
  --display-stretch: 112%;  /* Archivo variable width axis -> wider, more blocklike */

  --fs-hero:    clamp(2.6rem, 5vw, 4.5rem);
  --fs-h1:      clamp(2.0rem, 3.6vw, 3.0rem);
  --fs-h2:      clamp(1.6rem, 2.6vw, 2.1rem);
  --fs-h3:      1.35rem;
  --fs-h4:      1.1rem;
  --fs-body-lg: 1.175rem;
  --fs-body:    1rem;
  --fs-sm:      0.9rem;
  --fs-xs:      0.78rem;
  --fs-eyebrow: 0.8rem;

  --lh-tight:   1.04;
  --lh-snug:    1.18;
  --lh-body:    1.62;

  /* ---------- RADII ---------- */
  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 26px;
  --r-tile: 14px;   /* the logo's rounded-square tile feel */
  --r-pill: 999px;

  /* ---------- SHADOWS (cool, industrial, low-spread) ---------- */
  --sh-xs: 0 1px 2px rgba(12,19,32,0.06);
  --sh-sm: 0 2px 6px rgba(12,19,32,0.08);
  --sh-md: 0 8px 22px rgba(12,19,32,0.10);
  --sh-lg: 0 18px 48px rgba(0,26,77,0.16);
  --sh-navy: 0 14px 34px rgba(0,26,77,0.28);

  /* ---------- SPACING (4px base) ---------- */
  --sp-1: 4px;  --sp-2: 8px;   --sp-3: 12px;  --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px;  --sp-7: 48px;  --sp-8: 64px;
  --sp-9: 96px; --sp-10: 128px;

  /* ---------- MOTION ---------- */
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 140ms;
  --dur: 220ms;
  --dur-slow: 420ms;
}

/* ============================================================
   SEMANTIC ELEMENT STYLES
   ============================================================ */
.abarco-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green-600);
}

.abarco-hero,
.abarco-h1, .abarco-h2, .abarco-h3, .abarco-h4 {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  letter-spacing: var(--display-tracking);
  font-stretch: var(--display-stretch);
  color: var(--fg-1);
  line-height: var(--lh-tight);
  text-wrap: balance;
  margin: 0;
}
.abarco-hero { font-size: var(--fs-hero); text-transform: uppercase; }
.abarco-h1   { font-size: var(--fs-h1);  line-height: var(--lh-snug); }
.abarco-h2   { font-size: var(--fs-h2);  line-height: var(--lh-snug); }
.abarco-h3   { font-size: var(--fs-h3);  font-weight: 700; font-stretch: 100%; }
.abarco-h4   { font-size: var(--fs-h4);  font-weight: 700; font-stretch: 100%; letter-spacing: 0; }

.abarco-body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--fg-2);
  text-wrap: pretty;
  margin: 0;
}
.abarco-body-lg { font-size: var(--fs-body-lg); }

.abarco-mono {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--fg-1);
}

a.abarco-link {
  color: var(--green-700);
  text-decoration: none;
  border-bottom: 1.5px solid var(--green-300);
  transition: border-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}
a.abarco-link:hover { color: var(--navy-800); border-color: var(--navy-800); }