/* =====================================================================
   Ardental Gabinet Stomatologiczny / koncepcyjny redesign
   Locked concept: brand-forward modern wordmark, coral on charcoal/off-white,
   Zilla Slab (display) + Albert Sans (body). Typographic, photoless.
   ===================================================================== */

:root{
  --canvas:#f5f4f1;
  --canvas2:#eae8e2;
  --ink:#20232a;
  --muted:#565a63;
  --primary:#20232a;
  --primary-deep:#15171c;
  --accent:#e2583f;
  --accent-soft:#f7d9d1;
  --line:#dcdad3;

  --font-display:"Zilla Slab", Georgia, "Times New Roman", serif;
  --font-body:"Albert Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --maxw:1160px;
  --gutter:clamp(20px, 5vw, 64px);
  --radius:4px;

  --shadow-sm:0 1px 2px rgba(21,23,28,.05), 0 6px 18px rgba(21,23,28,.05);
  --shadow-md:0 4px 14px rgba(21,23,28,.07), 0 24px 60px rgba(21,23,28,.08);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth; -webkit-text-size-adjust:100%}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} }

body{
  margin:0;
  background:var(--canvas);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:clamp(16px, 1.02vw + 13px, 18px);
  line-height:1.65;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.06;
  letter-spacing:-.01em;
  margin:0;
}

a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}
ul{margin:0; padding:0; list-style:none}
button{font-family:inherit}

.wrap{max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter)}

/* ---- reveal contract (JS-gated only) ---- */
html.js [data-reveal]{opacity:0; transform:translateY(16px); transition:opacity .7s ease, transform .7s ease}
html.js [data-reveal].in{opacity:1; transform:none}

/* selection */
::selection{background:var(--accent); color:#fff}

/* eyebrow */
.eyebrow{
  font-family:var(--font-body);
  font-size:.86rem;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--accent);
  display:inline-flex; align-items:center; gap:.7em;
  margin:0 0 1.1rem;
}
.eyebrow::before{
  content:""; width:26px; height:2px; background:var(--accent); display:inline-block;
}

/* =====================================================================
   HEADER
   ===================================================================== */
.site-header{
  position:sticky; top:0; z-index:60;
  background:color-mix(in srgb, var(--canvas) 86%, transparent);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease;
}
.site-header.scrolled{
  border-bottom-color:var(--line);
  background:color-mix(in srgb, var(--canvas) 94%, transparent);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:1.2rem; min-height:72px;
}

/* wordmark (brand mark, signature motif) */
.brand{display:inline-flex; align-items:baseline; gap:.02em}
.brand-mark{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.46rem;
  letter-spacing:-.02em;
  color:var(--ink);
  line-height:1;
}
.brand-mark .dot{color:var(--accent)}
.brand-mark .mid{
  color:var(--accent);
  font-weight:600;
}

.nav{display:flex; align-items:center; gap:clamp(1rem,2.4vw,2.2rem)}
.nav-links{display:flex; align-items:center; gap:clamp(.9rem,2vw,1.9rem)}
.nav-links a{
  font-size:.93rem; font-weight:500; color:var(--muted);
  position:relative; padding:.3rem 0;
  transition:color .2s ease;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:-2px; height:2px; width:0;
  background:var(--accent); transition:width .25s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}

.header-cta{
  display:inline-flex; align-items:center; gap:.5em;
  background:var(--ink); color:var(--canvas);
  font-weight:600; font-size:.92rem;
  padding:.62rem 1.15rem; border-radius:var(--radius);
  border:1px solid var(--ink);
  transition:background .2s ease, transform .2s ease;
  white-space:nowrap;
}
.header-cta:hover{background:var(--accent); border-color:var(--accent); transform:translateY(-1px)}

/* lang toggle */
.lang-toggle{display:inline-flex; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden}
.lang-toggle button{
  appearance:none; border:0; background:transparent; cursor:pointer;
  font-size:.78rem; font-weight:600; letter-spacing:.04em;
  color:var(--muted); padding:.42rem .62rem; line-height:1;
  transition:background .2s ease, color .2s ease;
}
.lang-toggle button[aria-pressed="true"]{background:var(--ink); color:var(--canvas)}

/* mobile nav toggle */
.nav-toggle{
  display:none; appearance:none; border:1px solid var(--line); background:var(--canvas);
  width:42px; height:42px; border-radius:var(--radius); cursor:pointer;
  position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:""; position:absolute; left:50%; top:50%; width:18px; height:2px;
  background:var(--ink); transform:translate(-50%,-50%); transition:transform .25s ease, opacity .2s ease;
}
.nav-toggle span::before{transform:translate(-50%,-7px)}
.nav-toggle span::after{transform:translate(-50%,5px)}

/* =====================================================================
   HERO
   ===================================================================== */
.hero{
  position:relative; overflow:hidden;
  padding:clamp(3.5rem,10vw,7rem) 0 clamp(3rem,7vw,5rem);
}
.hero::before{
  /* faint geometric grid backdrop, the signature confidence */
  content:""; position:absolute; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:.42;
  -webkit-mask-image:radial-gradient(120% 100% at 18% 8%, #000 0%, transparent 72%);
          mask-image:radial-gradient(120% 100% at 18% 8%, #000 0%, transparent 72%);
}
.hero .wrap{position:relative; z-index:1}

.hero-tag{
  display:inline-flex; align-items:center; gap:.6em;
  font-size:.9rem; font-weight:500; color:var(--muted);
  border:1px solid var(--line); background:color-mix(in srgb,#fff 55%, var(--canvas));
  padding:.42rem .9rem; border-radius:100px;
  margin-bottom:clamp(1.6rem,4vw,2.4rem);
}
.hero-tag .pin{width:7px; height:7px; border-radius:50%; background:var(--accent)}

/* big wordmark */
.wordmark{
  font-family:var(--font-display);
  font-weight:700;
  line-height:.86;
  letter-spacing:-.035em;
  font-size:clamp(4.2rem, 19vw, 16rem);
  color:var(--ink);
  margin:0;
}
.wordmark .mid{color:var(--accent)}
.wordmark .dot{color:var(--accent)}

.hero-lede{
  max-width:46ch;
  margin:clamp(1.6rem,4vw,2.4rem) 0 0;
  font-size:clamp(1.12rem,1.4vw + .7rem,1.42rem);
  line-height:1.5;
  color:var(--ink);
}
.hero-lede strong{font-weight:600}

.hero-meta{
  display:flex; flex-wrap:wrap; gap:.7rem 1.7rem;
  margin-top:clamp(1.8rem,4vw,2.4rem);
  padding-top:clamp(1.4rem,3vw,1.8rem);
  border-top:1px solid var(--line);
}
.hero-meta .item{display:flex; flex-direction:column; gap:.15rem}
.hero-meta .k{
  font-size:.76rem; font-weight:600; letter-spacing:.05em; color:var(--accent);
}
.hero-meta .v{font-size:1rem; font-weight:500; color:var(--ink)}
.hero-meta .v a:hover{color:var(--accent)}

.hero-actions{display:flex; flex-wrap:wrap; gap:.8rem; margin-top:clamp(1.8rem,4vw,2.4rem)}

.btn{
  display:inline-flex; align-items:center; gap:.55em;
  font-weight:600; font-size:1rem;
  padding:.85rem 1.5rem; border-radius:var(--radius);
  border:1px solid transparent; cursor:pointer;
  transition:transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--accent); color:#fff; border-color:var(--accent)}
.btn-primary:hover{background:#c9472f; border-color:#c9472f; transform:translateY(-2px)}
.btn-ghost{background:transparent; color:var(--ink); border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink); color:var(--canvas); transform:translateY(-2px)}

/* =====================================================================
   SECTION SCAFFOLD
   ===================================================================== */
section{position:relative}
.section{padding:clamp(3.6rem,8vw,6.5rem) 0}
.section-head{max-width:60ch; margin-bottom:clamp(2.2rem,5vw,3.4rem)}
.section-head h2{
  font-size:clamp(1.9rem,3.4vw,3rem);
  font-weight:600;
}
.section-head p{
  margin:1.1rem 0 0; color:var(--muted); font-size:1.08rem; max-width:54ch;
}

.alt{background:var(--canvas2)}

/* =====================================================================
   APPROACH / about (typographic feature)
   ===================================================================== */
.approach-grid{
  display:grid; grid-template-columns:1.1fr .9fr; gap:clamp(2rem,5vw,4rem);
  align-items:start;
}
.approach-lead{
  font-family:var(--font-display);
  font-weight:300;
  font-size:clamp(1.5rem,2.4vw,2.15rem);
  line-height:1.32;
  color:var(--ink);
  letter-spacing:-.01em;
}
.approach-lead em{color:var(--accent); font-style:italic; font-weight:400}
.approach-body p{margin:0 0 1.1rem; color:var(--muted)}
.approach-body p:last-child{margin-bottom:0}

.pillars{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  margin-top:clamp(2.4rem,5vw,3.4rem);
  border-radius:var(--radius); overflow:hidden;
}
.pillar{background:var(--canvas); padding:clamp(1.4rem,3vw,2rem)}
.pillar .num{
  font-family:var(--font-display); font-weight:700; color:var(--accent);
  font-size:1.1rem; letter-spacing:.02em;
}
.pillar h3{font-size:1.18rem; margin:.6rem 0 .5rem}
.pillar p{margin:0; font-size:.96rem; color:var(--muted)}

/* =====================================================================
   SERVICES GRID (bold geometric, signature)
   ===================================================================== */
.svc-grid{
  display:grid; grid-template-columns:repeat(12,1fr); gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius); overflow:hidden;
}
.svc{
  background:var(--canvas);
  grid-column:span 4;
  padding:clamp(1.5rem,3vw,2.2rem);
  position:relative;
  transition:background .25s ease, color .25s ease;
}
.svc::after{
  content:""; position:absolute; left:clamp(1.5rem,3vw,2.2rem); bottom:0;
  width:0; height:3px; background:var(--accent); transition:width .3s ease;
}
.svc:hover{background:var(--primary-deep)}
.svc:hover .svc-no,.svc:hover h3,.svc:hover p{color:var(--canvas)}
.svc:hover .svc-no{opacity:.7}
.svc:hover::after{width:42px}

.svc-no{
  font-family:var(--font-display); font-weight:500;
  font-size:.82rem; letter-spacing:.18em; color:var(--accent);
  display:block; margin-bottom:1rem;
}
.svc h3{font-size:1.24rem; margin:0 0 .55rem; transition:color .25s ease}
.svc p{margin:0; font-size:.96rem; color:var(--muted); line-height:1.55; transition:color .25s ease}

/* wide feature service spanning */
.svc.wide{grid-column:span 6}
.svc.feature{
  grid-column:span 6; background:var(--primary-deep); color:var(--canvas);
}
.svc.feature .svc-no{color:var(--accent)}
.svc.feature h3{color:#fff; font-size:1.5rem}
.svc.feature p{color:#c9cad0}
.svc.feature::after{background:var(--accent)}

.svc-note{
  margin-top:1.6rem; font-size:.88rem; color:var(--muted);
  display:flex; gap:.6em; align-items:flex-start;
}
.svc-note::before{content:"i"; flex:0 0 auto; width:18px; height:18px; border-radius:50%;
  background:var(--canvas2); color:var(--muted); font-style:italic; font-weight:700;
  font-size:.72rem; display:grid; place-items:center; margin-top:.15rem; border:1px solid var(--line)}

/* =====================================================================
   PROOF / review
   ===================================================================== */
.proof-grid{display:grid; grid-template-columns:.85fr 1.15fr; gap:clamp(2rem,5vw,4rem); align-items:center}
.proof-score{
  background:var(--primary-deep); color:var(--canvas);
  border-radius:var(--radius); padding:clamp(2rem,4vw,2.8rem);
  text-align:center;
}
.proof-score .big{
  font-family:var(--font-display); font-weight:700; color:#fff;
  font-size:clamp(3.4rem,7vw,5rem); line-height:1; letter-spacing:-.02em;
}
.proof-score .stars{color:var(--accent); font-size:1.35rem; letter-spacing:.16em; margin:.5rem 0 .7rem}
.proof-score .src{font-size:.86rem; color:#b9bbc2}
.proof-score .src a{color:#fff; text-decoration:underline; text-underline-offset:3px}

.proof-text blockquote{
  margin:0; font-family:var(--font-display); font-weight:300;
  font-size:clamp(1.35rem,2.2vw,1.95rem); line-height:1.34; color:var(--ink);
  letter-spacing:-.01em;
}
.proof-text blockquote::before{content:"\201E"; color:var(--accent); font-size:1.2em; line-height:0; vertical-align:-.2em; margin-right:.05em}
.proof-text cite{display:block; margin-top:1.2rem; font-style:normal; font-size:.92rem; color:var(--muted)}
.proof-text .disc{margin-top:1.4rem; font-size:.86rem; color:var(--muted)}

/* =====================================================================
   VISIT / contact
   ===================================================================== */
.visit-grid{display:grid; grid-template-columns:1fr 1fr; gap:clamp(2rem,5vw,3.4rem); align-items:start}

.info-card{
  background:var(--canvas); border:1px solid var(--line);
  border-radius:var(--radius); padding:clamp(1.6rem,3.5vw,2.3rem);
}
.info-row{display:flex; gap:1rem; padding:1.1rem 0; border-bottom:1px solid var(--line)}
.info-row:first-of-type{padding-top:0}
.info-row:last-child{border-bottom:0; padding-bottom:0}
.info-row .ico{
  flex:0 0 auto; width:40px; height:40px; border-radius:var(--radius);
  background:var(--accent-soft); color:var(--accent);
  display:grid; place-items:center; font-weight:700;
}
.info-row .ico svg{width:20px; height:20px}
.info-row .body{min-width:0}
.info-row .label{font-size:.72rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin:0 0 .25rem}
.info-row .val{font-size:1.04rem; font-weight:500; color:var(--ink); margin:0; word-break:break-word}
.info-row .val a:hover{color:var(--accent)}
.info-row .sub{font-size:.86rem; color:var(--muted); margin:.3rem 0 0}

.hours-list{margin:.2rem 0 0}
.hours-list li{display:flex; justify-content:space-between; gap:1rem; padding:.18rem 0; font-size:.96rem}
.hours-list .d{color:var(--muted)}
.hours-list .t{font-weight:500; color:var(--ink)}

/* contact form (demo only) */
.form-card{
  background:var(--canvas); border:1px solid var(--line);
  border-radius:var(--radius); padding:clamp(1.6rem,3.5vw,2.3rem);
}
.form-card h3{font-size:1.4rem; margin:0 0 .4rem}
.form-card .demo-note{
  font-size:.84rem; color:var(--muted); margin:0 0 1.4rem;
  background:var(--accent-soft); color:#9c3a27; border-radius:var(--radius);
  padding:.6rem .8rem;
}
.field{margin-bottom:1rem}
.field label{display:block; font-size:.82rem; font-weight:600; color:var(--ink); margin-bottom:.4rem}
.field input,.field textarea{
  width:100%; font-family:inherit; font-size:1rem; color:var(--ink);
  background:var(--canvas); border:1px solid var(--line); border-radius:var(--radius);
  padding:.7rem .85rem; transition:border-color .2s ease, box-shadow .2s ease;
}
.field input:focus,.field textarea:focus{
  outline:none; border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-soft);
}
.field textarea{min-height:110px; resize:vertical}
.form-ok{
  margin-top:1rem; background:#e6f0e8; color:#2f6b41; border:1px solid #bfd9c6;
  border-radius:var(--radius); padding:.8rem 1rem; font-size:.94rem;
}

/* map */
.map-wrap{
  margin-top:clamp(2.4rem,5vw,3.4rem);
  border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.map-wrap iframe{display:block; width:100%; height:clamp(320px,42vw,440px); border:0; filter:grayscale(.18) contrast(1.02)}

/* =====================================================================
   FOOTER
   ===================================================================== */
.site-footer{background:var(--primary-deep); color:#cfd1d7; padding:clamp(3rem,6vw,4.5rem) 0 2.2rem}
.footer-top{display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:clamp(1.8rem,4vw,3rem)}
.footer-brand .brand-mark{font-size:1.7rem; color:#fff}
.footer-brand p{margin:1rem 0 0; max-width:34ch; font-size:.94rem; color:#a9abb3}
.footer-col h4{font-family:var(--font-body); font-size:.74rem; font-weight:600; letter-spacing:.16em; text-transform:uppercase; color:#7e818b; margin:0 0 1rem}
.footer-col a,.footer-col span{display:block; color:#cfd1d7; font-size:.96rem; margin-bottom:.6rem}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:clamp(2.4rem,5vw,3.4rem); padding-top:1.6rem; border-top:1px solid rgba(255,255,255,.1);
  display:flex; flex-wrap:wrap; gap:1rem; justify-content:space-between; align-items:flex-start;
}
.footer-bottom .legal{font-size:.84rem; color:#8a8d96; max-width:62ch; line-height:1.6}
.footer-bottom .legal strong{color:#cfd1d7; font-weight:600}
.footer-bottom .copy{font-size:.84rem; color:#7e818b}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width: 900px){
  .approach-grid{grid-template-columns:1fr; gap:2rem}
  .proof-grid{grid-template-columns:1fr; gap:2rem}
  .visit-grid{grid-template-columns:1fr; gap:2rem}
  .footer-top{grid-template-columns:1fr 1fr; gap:2rem}
  .svc{grid-column:span 6}
  .svc.wide,.svc.feature{grid-column:span 12}
}
@media (max-width: 760px){
  .nav-toggle{display:inline-flex}
  .nav{
    position:fixed; inset:72px 0 auto 0; flex-direction:column; align-items:stretch;
    gap:0; background:var(--canvas); border-bottom:1px solid var(--line);
    padding:0; max-height:0; overflow:hidden; transition:max-height .3s ease;
    box-shadow:var(--shadow-md);
  }
  .nav.open{max-height:80vh}
  .nav-links{flex-direction:column; align-items:stretch; gap:0; width:100%}
  .nav-links a{padding:1rem var(--gutter); border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .header-cta{margin:1rem var(--gutter)}
  .lang-toggle{margin:0 var(--gutter) 1.2rem}
  .pillars{grid-template-columns:1fr}
  .svc{grid-column:span 12}
  .hours-list li{font-size:.92rem}
}
@media (max-width: 520px){
  .footer-top{grid-template-columns:1fr}
  .hero-actions{flex-direction:column; align-items:stretch}
  .btn{justify-content:center}
}