/* 
 * Moderní CSS pro webovou prezentaci skladů
 * Responzivní design pro všechna zařízení
 */

/* CSS Reset a základní styly */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Barevná paleta - Professional Corporate */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #0ea5e9;
    --success-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    --info-color: #0891b2;
    
    /* Neutrální barvy */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Typografie */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Rozestupy */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-base: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-base: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-base: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transition */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-base);
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--gray-200);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-base) 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--gray-900);
    font-weight: 700;
    font-size: var(--font-size-2xl);
    letter-spacing: -0.025em;
}

.logo:hover {
    color: var(--primary-color);
    transition: var(--transition-fast);
}

.navigation {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    font-size: var(--font-size-base);
    line-height: 1.4;
    padding: var(--spacing-sm) var(--spacing-base);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    display: inline-block;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
}

.admin-btn {
    background: var(--gray-800);
    color: white;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-base);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    line-height: 1.4;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
    display: inline-block;
}

.admin-btn:hover {
    background: var(--gray-900);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Responzivní styly pro admin tlačítka */
@media (max-width: 768px) {
    .navigation {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .admin-btn {
        font-size: var(--font-size-base);
        padding: var(--spacing-sm) var(--spacing-base);
        white-space: nowrap;
        box-sizing: border-box;
        line-height: 1.4;
    }
}

/* Main content */
.main-content {
    padding: var(--spacing-3xl) 0;
}

/* Hero section */
.hero {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-3xl) 0;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    color: var(--gray-900);
}

.hero h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-base);
    color: var(--gray-900);
    letter-spacing: -0.025em;
    text-align: center !important;
}

.hero p {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
    text-align: center !important;
}

/* Cards grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 1px solid var(--gray-200);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
}

.card-content {
    padding: var(--spacing-xl);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--spacing-sm);
}

.card-subtitle {
    color: var(--gray-600);
    margin-bottom: var(--spacing-base);
}

.card-description {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-base);
    border-top: 1px solid var(--gray-200);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
    text-align: center;
    letter-spacing: 0.025em;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #38a169;
}

.btn-lg {
    padding: var(--spacing-base) var(--spacing-xl);
    font-size: var(--font-size-base);
}

/* Special styling for the main location search button */
#locationBtn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.25);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

#locationBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(37, 99, 235, 0.35);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

#locationBtn:active {
    transform: translateY(0);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

#locationBtn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.5s;
}

#locationBtn:hover:before {
    left: 100%;
}

/* Contact buttons */
.contact-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-base);
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: var(--transition-fast);
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-btn.whatsapp {
    background: #25D366;
    color: white;
}

.contact-btn.messenger {
    background: #0084FF;
    color: white;
}

.contact-btn.phone {
    background: var(--info-color);
    color: white;
}

.contact-btn.email {
    background: #EA4335;
    color: white;
}

.contact-btn.email:hover {
    background: #d33426;
}

/* Product grid */
.products-section {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    box-shadow: var(--shadow-base);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.product-category {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
    padding: 0;
}

.product-category h3 {
    color: var(--gray-800);
    margin-bottom: var(--spacing-base);
    font-size: var(--font-size-lg);
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-base);
    margin-bottom: var(--spacing-base);
    padding: var(--spacing-base);
    border: 1px solid #e0e0e0;
    border-radius: var(--radius-md);
}

.product-info {
    display: flex;
    flex-direction: column;
}

.product-name {
    font-weight: 600;
    color: var(--gray-800);
}

.product-price {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.product-stock {
    font-weight: 700;
    color: var(--success-color);
    font-size: var(--font-size-sm);
}

.product-stock.available {
    color: var(--success-color);
}

.product-stock.unavailable {
    color: var(--danger-color);
}

/* Map container */
.map-container {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin: var(--spacing-xl) 0;
}

.map-embed {
    width: 100%;
    height: 400px;
    border: none;
}

/* Info boxes */
.info-box {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-base);
    margin: var(--spacing-xl) 0;
    border-left: 4px solid var(--primary-color);
}

.info-box.warning {
    border-left-color: var(--warning-color);
    background: #fffbf0;
}

.info-box.success {
    border-left-color: var(--success-color);
    background: #f0fff4;
}

.info-box h3 {
    color: var(--gray-800);
    margin-bottom: var(--spacing-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.info-box ul {
    list-style: none;
    padding-left: 0;
}

.info-box li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.info-box li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.info-box.warning li::before {
    content: "⚠";
    color: var(--warning-color);
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--gray-200);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-3xl);
}

.footer-content {
    text-align: center;
    color: var(--gray-600);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-base);
    flex-wrap: wrap;
}

.footer-link {
    color: var(--gray-600);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary-color);
}

/* Responsive design */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
        --spacing-3xl: 2rem;
    }
    
    .header-content {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        align-items: center;
        padding-left: var(--spacing-base);
        padding-right: var(--spacing-base);
    }

    .logo {
        flex-shrink: 0;
    }

    .navigation {
        gap: var(--spacing-sm);
        flex-wrap: wrap;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        justify-items: center;
    }
    
    .product-item {
        max-width: 100%;
        width: 100%;
    }
    
    .product-category {
        width: 100%;
        max-width: 400px;
    }
    
    .contact-buttons {
        justify-content: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .map-embed {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero h1 {
        font-size: var(--font-size-3xl);
    }
    
    .hero p {
        font-size: var(--font-size-base);
    }
    
    .card-content {
        padding: var(--spacing-base);
    }
    
    .contact-buttons {
        flex-direction: column;
    }
    
    .contact-btn {
        justify-content: center;
    }
    
    .product-category h3 {
        text-align: center;
    }
    
    .product-category {
        margin: 0 auto;
        text-align: center;
        padding-left: 0;
        padding-right: 0;
    }
    
    /* Expand gray box for mobile devices */
    .info-box {
        width: 100%;
        margin: 0;
        padding: var(--spacing-base);
        box-sizing: border-box;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.badge {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.025em;
}

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-base); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-base); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* Warehouse Gallery Styles */
.warehouse-gallery {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.gallery-container {
    position: relative;
    width: 100%;
    height: 400px;
}

.gallery-images {
    position: relative;
    width: 100%;
    height: 100%;
}

.gallery-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease-in-out, visibility 0.5s ease-in-out;
}

.gallery-slide.active {
    opacity: 1;
    visibility: visible;
}

.gallery-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: var(--radius-lg);
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 12px 16px;
    font-size: 24px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s ease;
    z-index: 10;
}

.gallery-nav:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: translateY(-50%) scale(1.1);
}

.gallery-nav.prev {
    left: 20px;
}

.gallery-nav.next {
    right: 20px;
}

.gallery-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid white;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active,
.indicator:hover {
    background: white;
    transform: scale(1.2);
}

/* Force hide non-active slides */
.gallery-slide:not(.active) {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none;
}

/* Responsive gallery styles */
@media (max-width: 768px) {
    .warehouse-gallery {
        margin: 0 -1rem;
        border-radius: 0;
    }
    
    .gallery-container {
        height: 250px;
    }
    
    .gallery-nav {
        padding: 8px 12px;
        font-size: 20px;
    }
    
    .gallery-nav.prev {
        left: 10px;
    }
    
    .gallery-nav.next {
        right: 10px;
    }
    
    .gallery-indicators {
        bottom: 10px;
    }
    
    .indicator {
        width: 10px;
        height: 10px;
    }
}