/* --- HLAVNÍ NASTAVENÍ --- */

:root {

    --bg-dark: #0a0b0e;

    --bg-panel: rgba(30, 34, 41, 0.85);

    --primary-orange: #ff6700;

    --text-main: #ffffff;

    --text-muted: #b0bec5;

    --glass-border: rgba(255, 103, 0, 0.3);

    --section-spacing: 6rem; /* Výchozí mezera pro desktop */

}



* { margin: 0; padding: 0; box-sizing: border-box; }



html {

    scroll-behavior: smooth;

}



body {

    background-color: var(--bg-dark);

    color: var(--text-main);

    font-family: 'Outfit', sans-serif;

    line-height: 1.6;

    overflow-x: hidden; /* Zabrání vodorovnému posunu */

}



/* Container pro obsah - na mobilu menší padding */

.container { max-width: 1200px; margin: 0 auto; padding: var(--section-spacing) 2rem; }



/* --- NAVIGACE --- */

nav {

    display: flex; justify-content: space-between; padding: 1rem 5%; align-items: center; position: fixed;

    width: 100%; z-index: 100; background: linear-gradient(to bottom, rgba(10,11,14,0.98), rgba(10,11,14,0.9));

    backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 103, 0, 0.1);

    transition: 0.3s;

}

.logo { font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem; font-weight: 800; text-transform: uppercase; color: #fff; text-decoration: none; white-space: nowrap;}

.logo span { color: var(--primary-orange); }



.nav-links { display: flex; gap: 1.5rem; }

.nav-links a { 

    color: #fff; text-decoration: none; font-weight: 700; text-transform: uppercase; 

    transition: 0.3s; font-size: 0.85rem; position: relative; letter-spacing: 1px;

}

.nav-links a:hover, .nav-links a.active { color: var(--primary-orange); }

.nav-links a::after { content: ''; position: absolute; width: 0; height: 2px; bottom: -5px; left: 0; background-color: var(--primary-orange); transition: width 0.3s; }

.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }





/* --- TYPOGRAFIE A DESIGN --- */

h1, h2, h3 { font-family: 'Space Grotesk', sans-serif; text-transform: uppercase; margin-bottom: 1rem; }

/* Upravený clamp pro lepší chování na malých mobilech */

h1 { font-size: clamp(2.5rem, 6vw, 5rem); line-height: 1.1; }



/* Integrace faviconu do H2 */

h2 {

    font-size: clamp(1.8rem, 4vw, 2.5rem); /* Menší na mobilu */

    color: var(--text-main);

    margin-bottom: 2rem;

    display: flex;

    align-items: center;

    flex-wrap: wrap; /* Umožní zalomení na malém displeji */

}

h2::before {

    content: ''; display: inline-block; width: 1.2em; height: 1.2em;

    background-image: url('favicon.png'); background-size: contain; background-repeat: no-repeat;

    background-position: center; margin-right: 0.8rem; filter: drop-shadow(0 0 5px rgba(255, 103, 0, 0.5));

}



.highlight { color: var(--primary-orange); }

p { color: var(--text-muted); max-width: 600px; margin-bottom: 2rem; font-size: 1rem; }



.btn {

    display: inline-block; padding: 1rem 2.5rem; background: var(--primary-orange); color: #000;

    text-transform: uppercase; font-weight: 800; text-decoration: none; 

    clip-path: polygon(0 0, 100% 0, 95% 100%, 5% 100%); transition: 0.3s; border: none; cursor: pointer; font-size: 0.9rem;

}

.btn:hover { transform: translateY(-3px); background: #ff8533; box-shadow: 0 10px 20px -10px rgba(255, 103, 0, 0.5);}





/* --- HERO SEKCE (Desktop) --- */

.hero {

    background: linear-gradient(90deg, rgba(10,11,14,1) 0%, rgba(10,11,14,0.8) 50%, rgba(10,11,14,0.3) 100%), url('hero-bg.jpg');

    background-size: cover; background-position: center center; background-repeat: no-repeat; background-attachment: fixed;

    min-height: 100vh; display: flex; flex-direction: column; justify-content: center; 

    padding: 80px 5% 0 5%; /* Menší padding po stranách */

    position: relative; margin-top: -80px;

}





/* --- KARTY SLUŽEB --- */

/* Na mobilu bezpečně 1 sloupec, na PC se roztáhne */

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }

.card {

    background: var(--bg-panel); border: 1px solid #546e7a; border-top: 3px solid var(--primary-orange);

    padding: 2rem; transition: 0.3s; position: relative; overflow: hidden;

}

.card:hover { transform: translateY(-5px); border-color: var(--primary-orange); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }

.card h3 { font-size: 1.3rem; margin-bottom: 1rem; color: #fff; }

.card-num { position: absolute; top: 0.5rem; right: 1rem; font-size: 3rem; font-weight: 800; opacity: 0.05; font-family: 'Space Grotesk'; color: var(--primary-orange); }





/* --- GALERIE PŘED A PO (Slider) --- */

.comparison-section { background-color: #0f1116; }

.comp-container {

    position: relative; width: 100%; 

    height: 50vh; min-height: 300px; max-height: 600px; /* Upravené výšky pro mobil */

    border: 2px solid var(--secondary-steel); overflow: hidden;

    clip-path: polygon(2% 0, 100% 0, 100% 98%, 98% 100%, 0 100%, 0 2%); 

}

.comp-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }

.comp-img-before { width: 50%; overflow: hidden; z-index: 2; border-right: 3px solid var(--primary-orange); }

.comp-slider {

    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 10;

    width: 40px; height: 40px; background: var(--primary-orange); color: #000;

    border-radius: 50%; display: flex; justify-content: center; align-items: center; cursor: col-resize;

    box-shadow: 0 0 15px rgba(255, 103, 0, 0.6); border: 2px solid #fff;

}

.comp-slider::after { content: '⮜ ⮞'; font-weight: bold; font-size: 1.2rem; }





/* --- FORMULÁŘ --- */

.form-box { background: var(--bg-panel); padding: 2rem; border: 1px solid var(--glass-border); max-width: 600px; margin: 0 auto; }

input, textarea {

    width: 100%; padding: 1rem; margin-bottom: 1rem; background: rgba(0,0,0,0.3); border: 1px solid #546e7a;

    color: #fff; font-family: 'Outfit', sans-serif; transition: 0.3s; font-size: 16px; /* Prevence zoomu na iPhonech */

}

input:focus, textarea:focus { outline: none; border-color: var(--primary-orange); background: rgba(0,0,0,0.6); }

label { display: block; margin-bottom: 0.5rem; color: var(--primary-orange); font-weight: 700; text-transform: uppercase; font-size: 0.8rem; }



footer { background: #050507; padding: 3rem 5%; text-align: center; color: var(--text-muted); border-top: 1px solid #1e2229; margin-top: 4rem;}



/* =========================================

   MOBILNÍ OPTIMALIZACE (MEDIA QUERIES)

========================================= */



/* Tablety a menší notebooky */

@media (max-width: 992px) {

    :root { --section-spacing: 4rem; } /* Menší mezery mezi sekcemi */

    .hero { background-position: 70% center; } /* Posun pozadí, aby byl bagr víc vidět */

}



/* Mobilní telefony (hlavní zlom) */

@media (max-width: 768px) {

    :root { --section-spacing: 3rem; } /* Ještě menší mezery na mobilu */



    /* Navigace na mobilu */

    nav { 

        flex-direction: column; 

        padding: 0.8rem 5%;

        background: rgba(10,11,14,0.98); /* Téměř neprůhledné pozadí pro lepší čitelnost */

    }

    .logo { margin-bottom: 0.5rem; font-size: 1.3rem;}

    .nav-links { 

        flex-wrap: wrap; 

        justify-content: center; 

        gap: 1rem 1.5rem; /* Mezery mezi odkazy řádek/sloupec */

    }

    .nav-links a { font-size: 0.8rem; }



    /* Hero sekce na mobilu - OPRAVENÁ VIDITELNOST */

    .hero { 

        align-items: center; 

        text-align: center; 

        padding-top: 120px; /* Větší odsazení shora kvůli vyšší navigaci */

        

        /* ZDE JE TA ZMĚNA: Zesvětlený filtr (0.4 nahoře, 0.7 dole) */

        background: linear-gradient(to bottom, rgba(10,11,14,0.4) 0%, rgba(10,11,14,0.7) 100%), url('hero-bg.jpg');

        

        background-size: cover;

        background-position: center center; 

        background-attachment: scroll; /* Na mobilech vypínáme fixed pozadí kvůli výkonu a chybám */

    }

    .hero p { margin-bottom: 1.5rem; }



    /* Nadpisy na střed */

    h2 { justify-content: center; text-align: center; }

    

    /* Karty služeb */

    .grid { grid-template-columns: 1fr; } /* Vždy jeden sloupec */

    .card { padding: 1.5rem; }



    /* Slider */

    .comp-container { height: 40vh; min-height: 250px; }

    

    /* Formulář */

    .form-box { padding: 1.5rem; }

    .container { padding-left: 1rem; padding-right: 1rem; } /* Menší okraje obsahu */

}



/* Velmi úzké telefony (např. iPhone SE) */

@media (max-width: 380px) {

    h1 { font-size: 2.2rem; }

    .nav-links { gap: 0.8rem; }

    .nav-links a { font-size: 0.7rem; letter-spacing: 0; }

}