/*
Theme Name: Flavor Starter Theme
Theme URI: https://flavorstarter.cz
Author: Flavor Starter
Author URI: https://flavorstarter.cz
Description: Vlastní WordPress šablona pro affiliate web srovnávající VR zážitky v České republice. Postaveno s ACF Pro pro flexibilní správu obsahu.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: flavor-starter
Tags: custom-background, custom-logo, custom-menu, featured-images, theme-options, translation-ready

Srovnávač VR zážitků - Affiliate web pro porovnání VR zážitků v České republice
*/

/* ==========================================================================
   CSS Variables / Design Tokens
   ========================================================================== */

:root {
    /* Colors */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;
    --color-secondary: #10b981;
    --color-secondary-dark: #059669;

    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-muted: #9ca3af;

    --color-background: #ffffff;
    --color-background-alt: #f9fafb;
    --color-background-dark: #111827;

    --color-border: #e5e7eb;
    --color-border-dark: #d1d5db;

    /* Rating colors */
    --color-rating: #fbbf24;
    --color-rating-empty: #e5e7eb;

    /* Status colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;

    /* Typography */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-family-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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;
    --font-size-5xl: 3rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-base: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --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);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Container */
    --container-max-width: 1280px;
    --container-padding: 1rem;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
    height: auto;
}

input,
button,
textarea,
select {
    font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
    overflow-wrap: break-word;
}

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

a:hover {
    color: var(--color-primary-dark);
}

ul,
ol {
    list-style: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text);
}

h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

h5 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

h6 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
}

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

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.site-content {
    min-height: calc(100vh - 200px);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-base);
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
}

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

.btn-secondary {
    background-color: var(--color-secondary);
    color: #ffffff;
}

.btn-secondary:hover {
    background-color: var(--color-secondary-dark);
    color: #ffffff;
}

.btn-outline {
    background-color: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: #ffffff;
}

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-image {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   VR Site Card (Custom)
   ========================================================================== */

.vr-site-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.vr-site-card .card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.vr-site-card .card-location {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.vr-site-card .card-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.vr-site-card .card-price {
    font-weight: var(--font-weight-semibold);
    color: var(--color-secondary);
}

.vr-site-card .card-footer {
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   Rating Stars
   ========================================================================== */

.rating {
    display: inline-flex;
    align-items: center;
    gap: 2px;
}

.rating-star {
    width: 1rem;
    height: 1rem;
    color: var(--color-rating-empty);
}

.rating-star.filled {
    color: var(--color-rating);
}

.rating-value {
    margin-left: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

/* ==========================================================================
   Comparison Table
   ========================================================================== */

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
    background-color: var(--color-background-alt);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover td {
    background-color: var(--color-background-alt);
}

/* ==========================================================================
   Affiliate CTA
   ========================================================================== */

.affiliate-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #ffffff;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
}

.affiliate-cta h3 {
    color: #ffffff;
    margin-bottom: var(--spacing-sm);
}

.affiliate-cta p {
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.affiliate-cta .btn {
    background-color: #ffffff;
    color: var(--color-primary);
}

.affiliate-cta .btn:hover {
    background-color: var(--color-background-alt);
}

/* Affiliate disclosure */
.affiliate-disclosure {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    padding: var(--spacing-sm);
    background-color: var(--color-background-alt);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   Header - Top Section with Logo
   ========================================================================== */

.site-header-top {
    background-color: #1a1a2e;
    background-image:
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    padding: var(--spacing-md) 0;
}

.header-top-content {
    display: flex;
    align-items: center;
    justify-content: center;
}

.site-branding {
    text-align: center;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.site-logo img {
    height: auto;
    width: 188px;
    max-width: 100%;
    object-fit: contain;
}

.site-logo-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
}

.logo-icon svg {
    display: block;
}

.logo-text {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
}

.logo-vr {
    color: #00d4ff;
}

.logo-mista {
    color: #ffffff;
}

.logo-cz {
    color: #6366f1;
}

/* ==========================================================================
   Header - Main Navigation Bar
   ========================================================================== */

.site-header {
    background: linear-gradient(90deg, #0ea5e9 0%, #3b82f6 50%, #6366f1 100%);
    position: relative;
    z-index: 10;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    height: 56px;
    position: relative;
}

/* Navigation */
.main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
}

.main-navigation ul {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.main-navigation li {
    position: relative;
}

.main-navigation a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-semibold);
    color: #ffffff;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    position: relative;
    transition: all var(--transition-fast);
    text-transform: uppercase;
    font-size: var(--font-size-sm);
    letter-spacing: 0.5px;
}

.main-navigation a:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: #ffffff;
}

.main-navigation .current-menu-item > a,
.main-navigation a.active {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Menu item icons */
.main-navigation .menu-item-home > a::before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='%23ef4444' stroke='%23ef4444' stroke-width='2'%3E%3Cpath d='M20.84 4.61a5.5 5.5 0 0 0-7.78 0L12 5.67l-1.06-1.06a5.5 5.5 0 0 0-7.78 7.78l1.06 1.06L12 21.23l7.78-7.78 1.06-1.06a5.5 5.5 0 0 0 0-7.78z'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    margin-right: var(--spacing-xs);
}

/* Dropdown menus */
.main-navigation .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: #1a1a2e;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-sm) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
    flex-direction: column;
}

.main-navigation li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.main-navigation .sub-menu a {
    padding: var(--spacing-sm) var(--spacing-lg);
    color: #ffffff;
    text-transform: none;
    font-size: var(--font-size-base);
    border-radius: 0;
}

.main-navigation .sub-menu a:hover {
    background-color: rgba(99, 102, 241, 0.3);
}

/* Header actions (CTA button) */
.header-actions {
    position: absolute;
    right: var(--container-padding);
    display: flex;
    align-items: center;
}

.btn-header-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-fast);
    border: 1px solid rgba(255, 255, 255, 0.3);
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-header-cta span {
    white-space: nowrap;
}

.btn-header-cta:hover {
    background-color: #ffffff;
    color: var(--color-primary);
}

.btn-header-cta svg {
    width: 16px;
    height: 16px;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: 10;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #ffffff;
    margin: 5px 0;
    transition: all var(--transition-fast);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background-color: var(--color-background-dark);
    color: #ffffff;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-widget h4 {
    color: #ffffff;
    margin-bottom: var(--spacing-md);
}

.footer-widget ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-widget a {
    color: var(--color-text-muted);
}

.footer-widget a:hover {
    color: #ffffff;
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
    :root {
        --font-size-4xl: 1.875rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
    }

    /* Mobile header top */
    .site-header-top {
        padding: var(--spacing-md) 0;
    }

    .logo-text {
        font-size: 1.75rem;
    }

    .logo-icon svg {
        width: 32px;
        height: 32px;
    }

    /* Mobile navigation bar */
    .site-header .container {
        height: 50px;
        justify-content: space-between;
    }

    .menu-toggle {
        display: block;
    }

    .header-actions {
        position: relative;
        right: auto;
    }

    .btn-header-cta span {
        display: none;
    }

    .btn-header-cta {
        padding: var(--spacing-sm);
        border-radius: var(--radius-md);
    }

    .main-navigation {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
        padding: 80px var(--spacing-lg) var(--spacing-lg);
        transform: translateX(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        z-index: var(--z-modal);
        overflow-y: auto;
    }

    .main-navigation.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

    .main-navigation ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .main-navigation a {
        padding: var(--spacing-md) var(--spacing-lg);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        text-transform: none;
        font-size: var(--font-size-lg);
        border-radius: 0;
    }

    .main-navigation .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background-color: transparent;
        box-shadow: none;
        padding-left: var(--spacing-lg);
    }

    .main-navigation .sub-menu a {
        font-size: var(--font-size-base);
        padding: var(--spacing-sm) var(--spacing-lg);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-muted {
    color: var(--color-text-muted);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.mt-auto {
    margin-top: auto;
}

.d-flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.align-items-center {
    align-items: center;
}

.justify-content-between {
    justify-content: space-between;
}

.gap-1 {
    gap: var(--spacing-sm);
}

.gap-2 {
    gap: var(--spacing-md);
}

.gap-3 {
    gap: var(--spacing-lg);
}

/* Grid system */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

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

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}