/*
 * Restaurant Pro - Main Base Stylesheet
 * Version: 4.2.0 - CSS Variables Architecture
 *
 * This file contains ONLY:
 * - CSS Variables
 * - Reset & Base Styles
 * - Typography Base
 * - Utility Classes
 * - Footer Styles
 * - Contact Page Styles
 * - Form Styles
 * - Lightbox Styles
 * - Menu Page List Styles
 * - Page Header Styles
 *
 * All other component styles are in consolidated-styles.css
 */

/* ===================================
   CSS Variables
   =================================== */
:root {
    /* Colors - Premium Blue Palette */
    --color-primary: #0a2463;
    --color-primary-light: #1e3a8a;
    --color-primary-dark: #061539;
    --color-secondary: #1e1e2e;
    --color-accent: #3b82f6;
    --color-accent-light: #60a5fa;
    --color-gold: #d4af37;
    --color-text: #1a1a2e;
    --color-text-light: #4a5568;
    --color-text-muted: #718096;
    --color-bg: #ffffff;
    --color-bg-light: #f7f8fc;
    --color-bg-alt: #eef2ff;
    --color-bg-dark: #0f0f1a;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;
    --color-info: #00a0dc;
    --color-purple: #7c4dff;

    /* RGB hodnoty pre rgba() */
    --color-primary-rgb: 10, 36, 99;
    --color-secondary-rgb: 30, 30, 46;
    --color-accent-rgb: 59, 130, 246;
    --color-bg-dark-rgb: 15, 15, 26;
    --color-white-rgb: 255, 255, 255;
    --color-black-rgb: 0, 0, 0;

    /* Z-index system */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-header: 1000;
    --z-lightbox: 9999;

    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-heading: 'Playfair Display', serif;
    --font-size-base: 17px;
    --line-height-base: 1.8;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;

    /* Container */
    --container-width: 1200px;
    --container-padding: 1rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.2);
    --shadow-primary: 0 8px 25px rgba(var(--color-primary-rgb), 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.4s ease;
    --transition-bounce: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

/* ===================================
   Typography Base
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
    letter-spacing: 0.3px;
}

h1 { font-size: 3.5rem; font-weight: 700; }
h2 { font-size: 2.75rem; font-weight: 700; }
h3 { font-size: 2.25rem; font-weight: 600; }
h4 { font-size: 1.75rem; font-weight: 600; }
h5 { font-size: 1.5rem; font-weight: 600; }
h6 { font-size: 1.25rem; font-weight: 600; }

p {
    margin-bottom: var(--spacing-sm);
    font-size: 1.05rem;
    line-height: 1.8;
}

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

a:hover,
a:focus {
    color: var(--color-accent);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===================================
   Utility Classes
   =================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
    width: 100%;
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.screen-reader-text:focus {
    clip: auto;
    height: auto;
    width: auto;
    display: block;
    font-size: 1em;
    font-weight: bold;
    padding: 15px 23px 14px;
    background: var(--color-secondary);
    color: #fff;
    z-index: 100000;
    text-decoration: none;
}

/* ===================================
   Menu Page - List & Filter Styles
   =================================== */
.menu-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.filter-btn {
    padding: 0.85rem 1.75rem;
    background: #fff;
    border: 2px solid var(--color-border);
    border-radius: 50px;
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-base);
}

.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-color: var(--color-primary);
    color: #fff;
    box-shadow: var(--shadow-primary);
}

.menu-category {
    margin-bottom: var(--spacing-xl);
}

.menu-category-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.category-title {
    font-size: 2.25rem;
    color: var(--color-secondary);
    position: relative;
    display: inline-block;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.category-description {
    color: var(--color-text-light);
    font-style: italic;
    margin-top: 1.5rem;
}

.menu-items-list {
    display: grid;
    gap: var(--spacing-lg);
}

.menu-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 1px solid rgba(var(--color-primary-rgb), 0.1);
}

.menu-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: rgba(var(--color-primary-rgb), 0.3);
}

.menu-item.is-special {
    border: 2px solid var(--color-primary);
    box-shadow: var(--shadow-primary);
}

.menu-item-allergens {
    margin-top: var(--spacing-xs);
    color: var(--color-text-light);
    font-size: 0.875rem;
}

/* Dietary Badges */
.menu-item-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
}

.dietary-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.35rem 0.85rem;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.dietary-vegetarian {
    border-color: #4caf50;
    color: #4caf50;
    background: rgba(76, 175, 80, 0.1);
}

.dietary-vegan {
    border-color: #8bc34a;
    color: #8bc34a;
    background: rgba(139, 195, 74, 0.1);
}

.dietary-gluten-free {
    border-color: #ff9800;
    color: #ff9800;
    background: rgba(255, 152, 0, 0.1);
}

.dietary-dairy-free {
    border-color: #2196f3;
    color: #2196f3;
    background: rgba(33, 150, 243, 0.1);
}

.spicy-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, #ff5722, #e64a19);
    color: #fff;
    padding: 0.35rem 0.85rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(255, 87, 34, 0.4);
}

.special-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #fff;
    padding: 0.5rem 1.1rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    box-shadow: var(--shadow-primary);
}

/* ===================================
   Contact Page Styles
   =================================== */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-info-item {
    text-align: center;
    padding: 2.5rem 2rem;
    background: #fff;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(var(--color-primary-rgb), 0.15);
    transition: all var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.contact-info-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.contact-info-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(var(--color-primary-rgb), 0.3);
}

.contact-info-item:hover::before {
    transform: scaleX(1);
}

.contact-info-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.15), rgba(var(--color-primary-rgb), 0.05));
    border-radius: 50%;
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.contact-info-item:hover .contact-info-icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #fff;
    transform: scale(1.1);
    box-shadow: var(--shadow-primary);
}

.contact-info-icon svg {
    width: 28px;
    height: 28px;
}

.contact-info-content h3 {
    font-size: 1.35rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.contact-info-content p {
    color: var(--color-text-light);
    margin: 0;
    line-height: 1.7;
}

.contact-info-content a {
    color: var(--color-primary);
    font-weight: 500;
    position: relative;
}

.contact-info-content a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

.contact-info-content a:hover::after {
    width: 100%;
}

/* Map Container */
.map-container {
    margin: var(--spacing-lg) 0 var(--spacing-xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(var(--color-primary-rgb), 0.2);
}

.map-placeholder {
    background: linear-gradient(135deg, var(--color-bg-light), #e8e8e8);
    padding: var(--spacing-xl);
    text-align: center;
    min-height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===================================
   Form Styles
   =================================== */
.contact-form-section {
    max-width: 700px;
    margin: 0 auto;
}

.contact-form-example {
    margin-top: var(--spacing-md);
}

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

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 0.6rem;
    font-weight: 600;
    color: var(--color-secondary);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
    background: #fff;
}

.form-group input:hover,
.form-group textarea:hover,
.form-group select:hover {
    border-color: rgba(var(--color-primary-rgb), 0.5);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(var(--color-primary-rgb), 0.15);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-note {
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1), rgba(var(--color-primary-rgb), 0.05));
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: var(--spacing-md);
}

.form-note p {
    margin: 0;
    color: var(--color-text);
}

/* ===================================
   Lightbox Styles
   =================================== */
.lightbox-modal {
    position: fixed;
    z-index: 100000;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
}

.lightbox-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #fff;
    font-size: 36px;
    font-weight: 300;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.lightbox-close:hover {
    color: var(--color-primary);
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

#lightbox-caption {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
    text-align: center;
    color: rgba(255, 255, 255, 0.9);
    padding: 1.5rem 0;
    font-size: 1.1rem;
}

.lightbox-prev,
.lightbox-next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    transition: all var(--transition-base);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: none;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    box-shadow: var(--shadow-primary);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* ===================================
   Page Header Styles
   =================================== */
.page-hero {
    position: relative;
    height: 400px;
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.page-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(44, 44, 44, 0.7), rgba(26, 26, 26, 0.8));
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-hero .page-title {
    color: #fff;
    font-size: 3.5rem;
    margin: 0;
    text-shadow: 2px 4px 12px rgba(0, 0, 0, 0.4);
    position: relative;
}

.page-hero .page-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.page-header {
    background: linear-gradient(135deg, var(--color-bg-light), #f0f0f0);
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(var(--color-primary-rgb), 0.2);
}

.page-title {
    font-size: 2.75rem;
    margin: 0;
    color: var(--color-secondary);
}

/* ===================================
   Responsive - Base Only
   =================================== */
@media (max-width: 992px) {
    :root {
        --font-size-base: 16px;
    }

    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }

    .menu-item {
        grid-template-columns: 1fr;
    }

    .page-hero .page-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-xxl: 4rem;
    }

    .contact-info-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .page-hero {
        height: 300px;
    }

    .page-hero .page-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .filter-btn {
        padding: 0.7rem 1.25rem;
        font-size: 0.85rem;
    }

    .contact-info-item {
        padding: 2rem 1.5rem;
    }

    .lightbox-prev,
    .lightbox-next {
        width: 45px;
        height: 45px;
    }
}