:root{
    --clr-primary:#2F3A3D;
    --clr-secondary:#748B97;
    --clr-accent:#EFAF3A;
    --bg:#F5F7F8;
    --text:#111416;
    --text-light:#F2F4F5;
    --maxw:1200px;
    --radius:16px;
    --shadow:0 10px 30px rgba(0,0,0,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{color-scheme:light;scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,'Helvetica Neue',Arial,Noto Sans,'Apple Color Emoji','Segoe UI Emoji';color:var(--text);background:var(--bg);line-height:1.6;letter-spacing:.2px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(92%,var(--maxw));margin-inline:auto}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.9rem 1.1rem;border-radius:999px;border:1px solid transparent;font-weight:600;cursor:pointer;transition:.2s ease}
.btn--primary{background:var(--clr-accent);color:#201600}
.btn--primary:hover{filter:brightness(.95);transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:#E1E5E8}

/* Header / Nav */
header{position:sticky;top:0;z-index:100;backdrop-filter:saturate(180%) blur(8px);background:color-mix(in srgb,var(--bg) 80%,#fff 20% / .8);border-bottom:1px solid #e8ecef;transition:color .2s ease}
.header--light{color:#111}
.header--dark{color:#F2F4F5}
.nav{display:flex;align-items:center;justify-content:space-between;padding:.6rem 0}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:800;letter-spacing:.4px}
.brand-logo{width:36px;height:36px;border-radius:10px;background:linear-gradient(145deg,var(--clr-primary),#455357);display:grid;place-items:center;color:var(--text-light);font-weight:900;box-shadow:inset 0 0 0 2px rgba(255,255,255,.08)}
nav ul{list-style:none;display:flex;gap:1rem;padding:0;margin:0}
nav a{padding:.55rem .9rem;border-radius:10px;font-weight:600;color:inherit}
nav a:hover{background:#eef2f4}
.nav-cta{display:none}
.menu-btn{display:none}

/* Hero */
.hero{position:relative;min-height:70svh;display:grid;place-items:center;color:var(--text-light);isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;background:url('../kovovyroba/pergola-hero.webp') center/cover no-repeat;z-index:-2}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,21,23,.60),rgba(18,21,23,.35));z-index:-1}
.hero__inner{width:min(92%,var(--maxw));display:grid;gap:1.2rem;padding:4rem 0;text-align:center}
.hero h1{font-size:clamp(2rem,3vw + 1rem,3.6rem);margin:0}
.hero p{font-size:clamp(1rem,.6vw + .9rem,1.2rem);opacity:.95}
.hero .cta{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap;margin-top:.6rem}

/* Sections */
section{padding:clamp(2.5rem,5vw,5rem) 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:1rem;margin-bottom:1.3rem}
.eyebrow{color:var(--clr-secondary);font-weight:700;letter-spacing:.1em;text-transform:uppercase;font-size:.8rem}
h2{font-size:clamp(1.6rem,1.4vw + 1rem,2.2rem);margin:.2rem 0 0}
.muted{color:#5c6569}

/* Services */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1rem}
.card{background:#fff;border:1px solid #e8ecef;border-radius:var(--radius);padding:1.1rem;box-shadow:var(--shadow);display:grid;gap:.5rem}
.card h3{margin:.2rem 0;font-size:1.1rem}
.chip{display:inline-flex;align-items:center;gap:.4rem;padding:.25rem .55rem;border-radius:999px;background:#f0f4f6;color:#2d3a3e;font-size:.8rem}

/* About */
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:2rem;align-items:center}
.about img{border-radius:var(--radius);box-shadow:var(--shadow)}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem;margin-top:1rem}
.fact{background:#fff;border:1px solid #e8ecef;border-radius:14px;padding:1rem;text-align:center}
.fact b{font-size:1.6rem;display:block;color:var(--clr-primary)}

/* Gallery */
.filters{display:flex;gap:.5rem;flex-wrap:wrap}
.filters button{padding:.5rem .9rem;border-radius:999px;border:1px solid #dce2e6;background:#fff;cursor:pointer;font-weight:600}
.filters button[aria-pressed="true"]{background:var(--clr-primary);color:var(--text-light);border-color:transparent}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:.6rem;margin-top:1rem}
.tile{position:relative;border-radius:12px;overflow:hidden;background:#e9eef1;aspect-ratio:4/3;border:1px solid #e3e9ed}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.tile:hover img{transform:scale(1.03)}
.tile .badge{position:absolute;left:.5rem;top:.5rem;background:rgba(47,58,61,.8);color:var(--text-light);padding:.25rem .5rem;border-radius:8px;font-size:.75rem}

/* Lightbox */
dialog.lightbox{width:min(90vw,980px);border:none;padding:0;border-radius:16px;overflow:hidden;box-shadow:0 25px 60px rgba(0,0,0,.35)}
.lb-wrap{position:relative;background:#000}
.lb-wrap img{width:100%;height:auto;display:block}
.lb-close,.lb-prev,.lb-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.55);color:#fff;border:none;width:44px;height:44px;border-radius:999px;display:grid;place-items:center;cursor:pointer}
.lb-close{top:.6rem;right:.6rem;transform:none}
.lb-prev{left:.6rem}
.lb-next{right:.6rem}

/* Contact */
form{display:grid;gap:.8rem}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
input,textarea,select{padding:.85rem .9rem;border-radius:10px;border:1px solid #d8dfe3;background:#fff;font:inherit;width:100%}
textarea{min-height:140px;resize:vertical}
.form-foot{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.note{font-size:.9rem;color:#687176}

/* Footer */
footer{background:#0f1416;color:#cfd7db;padding:2rem 0;margin-top:2rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr;gap:1rem;align-items:center}
.socials{display:flex;gap:.6rem}
.socials a{display:inline-flex;width:38px;height:38px;border-radius:10px;align-items:center;justify-content:center;background:#1b2326;border:1px solid #2a3438}
.socials a:hover{background:#243034}

/* Utilities */
.kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,'Liberation Mono','Courier New',monospace;background:#eef2f4;border:1px solid #e3e9ed;padding:.05rem .35rem;border-radius:6px}
.in-view{animation:fadeUp .6s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* Responsive */
@media (max-width:880px){
    .about{grid-template-columns:1fr}
    .facts{grid-template-columns:1fr 1fr}
    .footer-grid{grid-template-columns:1fr}
    nav ul{display:none}
    .menu-btn{display:inline-flex}
    .nav-cta{display:inline-flex}
}

/* Form validation highlights */
input.error, select.error, textarea.error { border-color:#e63946; outline:none; }
label.error { outline:2px solid #e63946; border-radius:4px; padding:.3rem; }
#formNote { display:block; margin-top:.5rem; color:#e63946; font-weight:500; }