/* CSS PREMENNÉ (Jednoduchá zmena farieb na jednom mieste) */
:root {
    --primary: #1E3A8A; /* Tmavomodrá (Dôvera, Odbornosť) */
    --primary-dark: #152B69;
    --accent: #ffc300; /* Výstražná oranžová (Bezpečnosť, Akcia) */
    --accent-hover: #e6b000;
    --text-on-accent: #1F2937;
    --bg-light: #F9FAFB; /* Lomená biela */
    --bg-white: #FFFFFF;
    --text-main: #1F2937; /* Tmavosivá pre dobrú čitateľnosť */
    --text-light: #6B7280;
    --white: #FFFFFF;
    
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth; /* Plynulé scrollovanie */
}

body {
    font-family: var(--font-body);
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-white);
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--primary);
    margin-bottom: 15px;
    line-height: 1.2;
}

p {
    margin-bottom: 15px;
}

a {
    text-decoration: none;
    color: var(--primary);
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--bg-light);
    background-image: url('../img/pattern.svg');
    background-size: cover;
    background-blend-mode: multiply;
}

.section-header {
    margin-bottom: 60px;
    max-width: 800px;
}

.section-header.center {
    text-align: center;
    margin: 0 auto 60px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* TLAČIDLÁ */
.btn {
    display: inline-block;
    padding: 15px 30px;
    font-family: var(--font-heading);
    font-weight: 700;
    border-radius: 5px;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent);
    color: var(--white) !important;
    border: none;
    box-shadow: 0 4px 6px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(245, 158, 11, 0.4);
}

/* HLAVIČKA A NAVIGÁCIA */
#main-header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo a {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
}

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

#nav-menu ul {
    display: flex;
    align-items: center;
    gap: 30px;
}

#nav-menu a {
    font-weight: 500;
    color: var(--text-main);
    font-size: 15px;
}

#nav-menu a:hover {
    color: var(--accent);
}

.btn-nav {
    background-color: var(--primary);
    color: var(--white) !important;
    padding: 10px 20px;
    border-radius: 4px;
}

.btn-nav:hover {
    background-color: var(--primary-dark);
}

.hamburger {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--primary);
}

/* HERO SEKCIA */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    
    /* TU VLOŽÍŠ FOTKU Z CANVY - ulož ju do zložky img/ ako hero-bg.webp */
    /* UPRAVENÉ: Horizontálny gradient pre lepšiu čitateľnosť vľavo a viditeľnosť obrázka vpravo */
    background: linear-gradient(to right, rgba(30, 58, 138, 0.95) 40%, rgba(30, 58, 138, 0.2) 100%), url('../img/hero-bg.webp') center/cover;
    background-color: var(--primary); /* Fallback farba */
    
    /* PRIDANÉ: Moderný parallax efekt pri scrollovaní */
    background-attachment: fixed;
    
    color: var(--white);
    margin-top: 80px; /* Kvôli fixnému menu */
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    color: var(--white);
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.hero-checklist {
    font-size: 0.9rem;
    font-weight: 500;
}

.hero-checklist i {
    color: var(--accent);
}

/* GRID SYSTÉM */
.grid {
    display: grid;
    gap: 30px;
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* KARTY (Výhody & Služby) */
.card, .service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    border-top: 4px solid var(--accent);
    transition: var(--transition);
}

.card:hover, .service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.card-icon, .service-icon {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 20px;
}

/* O MNE SEKCIA */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image-placeholder {
    background: linear-gradient(135deg, var(--bg-light) 0%, #E5E7EB 100%);
    background: url('../img/about-img.webp') center/cover;
    height: 500px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    box-shadow: 0 20px 40px rgba(30, 58, 138, 0.1);
}

.initial-circle {
    width: 150px;
    height: 150px;
    background-color: var(--primary);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 800;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.image-overlay-text {
    position: absolute;
    bottom: 30px;
    background: var(--white);
    padding: 15px 30px;
    border-radius: 30px;
    font-weight: 700;
    color: var(--primary);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.about-content .lead {
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: 30px;
}

.about-list li {
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.about-list i {
    color: var(--accent);
    font-size: 24px;
    margin-top: 3px;
}

/* PROCES */
.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    position: relative;
}

/* Spojovacia čiara medzi krokmi */
.process-grid::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    width: 80%;
    height: 2px;
    background-color: #E5E7EB;
    z-index: 0;
}

.process-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 80px;
    height: 80px;
    background-color: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 800;
    margin: 0 auto 20px;
    border: 5px solid var(--bg-light);
}

/* FOOTER */
.footer {
    background-color: var(--primary);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer h2, .footer h4 {
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.footer-cta p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-item i {
    font-size: 24px;
    color: var(--accent);
    margin-top: 5px;
}

.contact-item a {
    color: var(--white);
    opacity: 0.9;
}

.contact-item a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

/* RESPONZIVITA (Mobily a tablety) */
@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
    .process-grid::before {
        display: none;
    }
    .process-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    /* Mobilné Menu */
    .hamburger {
        display: block;
    }
    #nav-menu {
        position: absolute;
        top: 80px;
        left: -100%;
        width: 100%;
        background-color: var(--white);
        box-shadow: 0 10px 10px rgba(0,0,0,0.05);
        transition: 0.4s;
    }
    #nav-menu.active {
        left: 0;
    }
    #nav-menu ul {
        flex-direction: column;
        padding: 30px 0;
        gap: 20px;
        text-align: center;
    }
    .btn-nav {
        display: inline-block;
    }
}

/* --- 3D Flip Card Efekt pre sekciu O mne --- */
.flip-card {
    background-color: transparent;
    width: 100%;
    max-width: 340px; /* Ideálna šírka pre mobil aj desktop */
    height: 420px;    /* Vertikálny portrétny formát */
    perspective: 1000px; /* Definuje hĺbku 3D priestoru */
    margin: 0 auto;
}

/* --- VNÚTORNÝ OBAL (Mechanika preklopenia) --- */
.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s cubic-bezier(0.4, 0.2, 0.2, 1); /* Plynulá profi animácia */
    transform-style: preserve-3d;
    box-shadow: 0 15px 35px rgba(30, 58, 138, 0.15); /* Jemný tieň vo farbe Safety Navy */
    border-radius: 16px;
}

/* Akcia pri prejdení myšou (Pre desktop) / Dotyk (Pre mobil) */
.flip-card:hover .flip-card-inner,
.flip-card:focus-within .flip-card-inner {
    transform: rotateY(180deg);
}

/* --- SPOLOČNÉ PRAVIDLÁ PRE OBOJE STRANY --- */
.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden; /* Dôležité pre Safari */
    backface-visibility: hidden;
    border-radius: 16px;
    overflow: hidden;
}

/* --- PREDNÁ STRANA (Brand Identity s vylepšeným kontrastom) --- */
.flip-card-front {
    /* Plynulý tmavý prechod cez obrázok pre splnenie noriem čitateľnosti WCAG */
    background: linear-gradient(
        rgba(30, 58, 138, 0.7), 
        rgba(30, 58, 138, 0.9)  
    ),
    url('../img/about-img.webp') center/cover;
    
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 30px 20px;
    border-bottom: 6px solid #FFC300; /* Sunflower Yellow akcent */
}

.flip-card-front h3 {
    color: #ffffff; /* Meno je biele pre maximálny kontrast */
    margin: 0 0 10px 0;
    font-size: 1.5rem;
    letter-spacing: 0.5px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5); /* Tieň pre vizuálne oddelenie */
}

.flip-card-front p {
    color: #FFC300; /* Sunflower Yellow */
    font-weight: 600;
    margin: 0 0 30px 0;
    font-size: 0.95rem;
    text-transform: uppercase;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

.flip-hint {
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    transition: background-color 0.3s ease;
}

/* --- ZADNÁ STRANA (Fotografia) --- */
.flip-card-back {
    background-color: #1E3A8A;
    transform: rotateY(180deg);
}

/* --- LOGIKA OREZU FOTOGRAFIE --- */
.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover; 
    object-position: 50% 10%; 
}

/* --- PÄTIČKA STRÁNKY --- */
.site-footer {
    background-color: #1E3A8A; /* Safety Navy pre konzistenciu */
    color: rgba(255, 255, 255, 0.7); /* Jemne tlmená biela, aby neťahala oči */
    text-align: center;
    padding: 30px 20px;
    margin-top: 60px; /* Vytvorí priestor od poslednej sekcie */
    border-top: 4px solid #FFC300; /* Sunflower Yellow akcent na oddelenie */
    font-size: 0.85rem;
}

.site-footer .footer-content {
    display: flex;
    flex-direction: column;
    gap: 10px; /* Medzera medzi copyrightom a tvojím menom */
}

.site-footer p {
    margin: 0;
}

/* Štýlovanie tvojho podpisu */
.developer-credit {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.developer-credit .author-name {
    color: #FFC300; /* Tvoje meno bude svietiť vo firemnej žltej farbe */
    font-weight: 600;
}

/* --- PREDAJ A KONTROLA HASIACEJ TECHNIKY --- */
.hasiaca-sekcia {
    background-color: #f4f6f9; /* Veľmi jemná sivomodrá pre vizuálne oddelenie sekcie */
    padding: 80px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
    margin-bottom: 40px;
}

/* Štýl produktovej karty */
.product-card {
    background: #ffffff;
    border-radius: 8px;
    padding: 35px 25px 25px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
    border-top: 5px solid #1E3A8A; /* Safety Navy horná línia */
    position: relative;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

/* Odznak Skladom */
.stock-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #FFC300; /* Sunflower Yellow */
    color: #1E3A8A;
    font-weight: 700;
    font-size: 0.8rem;
    padding: 6px 18px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.1);
    white-space: nowrap;
}

.product-content h3 {
    color: #1E3A8A;
    margin-bottom: 5px;
    font-size: 1.5rem;
}

.product-type {
    display: block;
    font-weight: 600;
    color: #666;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.product-content p {
    font-size: 0.9rem;
    color: #555;
    line-height: 1.6;
    margin: 0;
}

/* Doplnkové služby pod produktmi */
.services-extra {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.extra-box {
    background: #1E3A8A; /* Tmavé pozadie pre kontrast */
    color: white;
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid #FFC300;
}

.extra-box h4 {
    color: #FFC300;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2rem;
}

.extra-box p {
    margin: 0;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
}

/* Responzivita pre extra boxy na mobiloch */
@media (max-width: 768px) {
    .services-extra {
        grid-template-columns: 1fr;
    }
}