/* ===================================
   Brand Colors from Identity Manual
   =================================== */
:root {
    --color-primary: #8BC34A;        /* Svěží zelená (fresh green) */
    --color-secondary: #1B4D3E;       /* Hluboká tmavě zelená (deep dark green) */
    --color-beige: #F5F3F0;           /* Jemná světlá béžová (soft light beige) */
    --color-black: #2C2C2C;           /* Elegantní uhlově černá (elegant charcoal black) */
    --color-white: #FFFFFF;
    
    /* Typography */
    --font-primary: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;  /* Fallback for Google Sans Flex */
    --font-secondary: Georgia, 'Times New Roman', serif;                /* Fallback for The Seasons */
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 2rem;
}

/* ===================================
   Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-black);
    background-color: var(--color-white);
    line-height: 1.7;
    font-size: 16px;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3 {
    font-family: var(--font-secondary);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-secondary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-sm);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

p {
    margin-bottom: var(--spacing-sm);
}

strong {
    color: var(--color-secondary);
    font-weight: 600;
}

/* ===================================
   Header & Navigation
   =================================== */
header {
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    padding: var(--spacing-sm) 0;
}

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

.logo img {
    height: 60px;
    width: auto;
    max-width: 100%;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    text-decoration: none;
    color: var(--color-secondary);
    font-weight: 500;
    font-size: 1.05rem;
    transition: color 0.3s ease;
    position: relative;
}

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

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

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

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: linear-gradient(135deg, var(--color-secondary) 0%, #2d6e5a 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero h1 {
    color: var(--color-white);
    font-size: clamp(2rem, 5vw, 3.2rem);
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 300;
    color: var(--color-primary);
    font-family: var(--font-secondary);
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-beige);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.about-item {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.about-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.about-item .icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.about-item p {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 0;
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.service-card {
    background-color: var(--color-beige);
    padding: var(--spacing-md);
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.service-card:hover {
    transform: translateX(5px);
    border-color: var(--color-secondary);
}

.service-card h3 {
    color: var(--color-secondary);
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--color-black);
    line-height: 1.7;
    margin-bottom: 0;
}

.cooperation {
    text-align: center;
    font-size: 1.15rem;
    color: var(--color-secondary);
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-beige);
    border-radius: 12px;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-beige) 0%, var(--color-white) 100%);
}

.contact-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.contact-intro {
    font-size: 1.2rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.contact-item .icon {
    color: var(--color-primary);
}

.contact-item p {
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 0;
    text-align: center;
}

/* ===================================
   Footer
   =================================== */
footer {
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    text-align: center;
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo img {
    height: 50px;
    width: auto;
    max-width: 100%;
    opacity: 0.95;
}

footer p {
    font-size: 0.95rem;
    opacity: 0.85;
    margin-bottom: 0;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    :root {
        --container-padding: 1.5rem;
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    nav .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .logo img {
        height: 45px;
    }
    
    .nav-links {
        gap: var(--spacing-sm);
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-links a {
        font-size: 0.95rem;
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .about-content,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .logo img {
        height: 35px;
    }
    
    .nav-links {
        gap: var(--spacing-xs);
    }
    
    .nav-links a {
        font-size: 0.9rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
}

/* ===================================
   Accessibility
   =================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    header,
    footer {
        display: none;
    }
    
    .hero {
        background: none;
        color: var(--color-black);
    }
    
    .hero h1,
    .hero-subtitle {
        color: var(--color-black);
    }
    
    * {
        box-shadow: none !important;
    }
}