/**
 * Explore UK Tour - Main Stylesheet
 * Mobile-first responsive design with professional animations
 */

/* ========================================
   CSS VARIABLES - COLOR PALETTE
   ======================================== */
:root {
    /* Akcenty i kolory */
    --color-accent-1: #00416A;
    --color-accent-2: #FFA500;
    --color-link: #1E90FF;
    --color-link-hover: #FF4500;
    --color-button-bg: #003366;
    --color-button-text: #ffffff;
    --color-top-menu-bg: #BB262F;
    --color-top-menu-link: #ffffff;
    --color-footer-bg: #002147;
    --color-footer-text: #ffffff;
    --color-footer-link: #FFA500;
    --color-accordion-bg: #00416A;
    --color-accordion-text: #ffffff;
    --color-icon: #BB262F;
    --color-card-header: #00416A;
    --color-btn-outline: #BB262F;
    --color-text-primary: #BB262F;
    
    /* Neutral colors */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-light: #f8f9fa;
    --color-gray: #6c757d;
    --color-gray-dark: #343a40;
    
    /* Typography */
    --font-primary: 'Open Sans', sans-serif;
    --font-headings: 'Playfair Display', serif;
    --font-size-base: 16px;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-gray-dark);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1 0 auto;
    padding-bottom: var(--spacing-xl);
}

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

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

a:hover {
    color: var(--color-link-hover);
}

ul, ol {
    list-style-position: inside;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2rem;
    font-weight: 600;
}

h3 {
    font-size: 1.75rem;
    font-weight: 500;
}

h4 {
    font-size: 1.5rem;
    font-weight: 400;
}

h5 {
    font-size: 1.25rem;
    font-weight: 300;
}

h6 {
    font-size: 1rem;
    font-weight: 300;
}

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

strong, b {
    font-weight: 700;
}

em, i {
    font-style: italic;
}

/* Responsive typography */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-button-bg);
    color: var(--color-button-text);
    border-color: var(--color-button-bg);
}

.btn-primary:hover {
    background-color: var(--color-accent-1);
    border-color: var(--color-accent-1);
    color: var(--color-button-text);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn-outline:hover {
    background-color: var(--color-btn-outline);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-accent-2);
    color: var(--color-white);
    border-color: var(--color-accent-2);
}

.btn-secondary:hover {
    background-color: #ff8c00;
    border-color: #ff8c00;
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn:active {
    transform: translateY(0);
}

/* Button sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ========================================
   CARDS
   ======================================== */
.card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    height: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background-color: var(--color-card-header);
    color: var(--color-white);
    padding: var(--spacing-md);
    font-family: var(--font-headings);
    font-size: 1.25rem;
    font-weight: 600;
}

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

.card-footer {
    background-color: var(--color-gray-light);
    padding: var(--spacing-md);
    border-top: 1px solid #dee2e6;
}

.card-img-top {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-title {
    font-family: var(--font-headings);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.card-text {
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   ACCORDIONS
   ======================================== */
.accordion-button {
    background-color: var(--color-accordion-bg) !important;
    color: var(--color-accordion-text) !important;
    font-weight: 600;
    font-size: 1.125rem;
    border: none !important;
}

.accordion-button:not(.collapsed) {
    background-color: var(--color-accent-1) !important;
    color: var(--color-accordion-text) !important;
    box-shadow: none !important;
}

.accordion-button:focus {
    box-shadow: none !important;
    border-color: transparent !important;
}

.accordion-button::after {
    filter: brightness(0) invert(1);
}

.accordion-item {
    border: 1px solid rgba(0, 65, 106, 0.2);
    margin-bottom: var(--spacing-sm);
    border-radius: var(--radius-md) !important;
    overflow: hidden;
}

.accordion-body {
    padding: var(--spacing-md);
    background-color: var(--color-white);
}

/* ========================================
   HEADER & LOGO
   ======================================== */
.site-logo {
    max-width: 300px;
    max-height: 120px;
    width: auto;
    height: auto;
}

.top-bar {
    background-color: var(--color-white);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid #e0e0e0;
}

.contact-info {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    justify-content: flex-end;
}

.contact-info a {
    color: var(--color-gray-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.contact-info a:hover {
    color: var(--color-text-primary);
}

.contact-info i {
    color: var(--color-icon);
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .contact-info {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .site-logo {
        max-width: 200px;
        max-height: 80px;
    }
}

/* ========================================
   NAVIGATION MENU
   ======================================== */
.main-navigation {
    background-color: var(--color-top-menu-bg);
    box-shadow: var(--shadow-md);
}

.navbar-dark .navbar-nav .nav-link {
    color: var(--color-top-menu-link);
    font-weight: 500;
    padding: 0.75rem 1rem;
    transition: all var(--transition-fast);
    position: relative;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: var(--color-accent-2);
    background-color: rgba(255, 255, 255, 0.1);
}

.navbar-dark .navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 3px;
    background-color: var(--color-accent-2);
}

/* Dropdown menu */
.dropdown-menu {
    background-color: var(--color-white);
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: 0.5rem 0;
    min-width: 250px;
}

.dropdown-item {
    color: var(--color-gray-dark);
    padding: 0.75rem 1.5rem;
    transition: all var(--transition-fast);
    font-weight: 500;
}

.dropdown-item:hover,
.dropdown-item.active {
    background-color: var(--color-gray-light);
    color: var(--color-text-primary);
}

/* Mega menu for multi-column dropdowns */
.mega-menu {
    position: static;
}

.mega-menu .dropdown-menu {
    width: 100%;
    max-width: 900px;
    left: 50%;
    transform: translateX(-50%);
}

.mega-menu-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.mega-menu-column h6 {
    font-family: var(--font-headings);
    color: var(--color-text-primary);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    padding: 0 0.5rem;
}

/* Mobile menu */
@media (max-width: 991px) {
    .navbar-collapse {
        background-color: var(--color-top-menu-bg);
        padding: var(--spacing-sm);
        margin-top: var(--spacing-sm);
        border-radius: var(--radius-md);
    }
    
    .dropdown-menu {
        background-color: rgba(255, 255, 255, 0.1);
        box-shadow: none;
    }
    
    .dropdown-item {
        color: var(--color-white);
    }
    
    .dropdown-item:hover,
    .dropdown-item.active {
        background-color: rgba(255, 255, 255, 0.2);
        color: var(--color-accent-2);
    }
    
    .mega-menu-columns {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   BREADCRUMBS
   ======================================== */
.breadcrumb {
    background-color: var(--color-gray-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

.breadcrumb-item {
    font-size: 0.9rem;
}

.breadcrumb-item a {
    color: var(--color-link);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

.breadcrumb-item.active {
    color: var(--color-gray);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--color-gray);
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-section {
    margin-bottom: var(--spacing-lg);
}

.footer-section h5 {
    color: var(--color-footer-link);
    font-family: var(--font-headings);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    max-width: 300px;
    max-height: 120px;
    margin-bottom: var(--spacing-md);
}

.footer-menu {
    list-style: none;
    padding: 0;
}

.footer-menu li {
    margin-bottom: var(--spacing-xs);
}

.footer-menu a {
    color: var(--color-footer-text);
    text-decoration: none;
    transition: color var(--transition-fast);
    display: inline-block;
}

.footer-menu a:hover {
    color: var(--color-footer-link);
    padding-left: 5px;
}

.footer-text {
    color: var(--color-footer-text);
    line-height: 1.8;
    font-size: 0.95rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    margin-bottom: 0;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero-section {
    max-height: 550px;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-accent-1) 0%, var(--color-text-primary) 100%);
}

.hero-content {
    text-align: center;
    color: var(--color-white);
    z-index: 2;
    padding: var(--spacing-lg);
}

.hero-section h1 {
    color: var(--color-white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-section p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Hero sections for Travel Tips pages */
.page-hero h1 {
    color: #ffffff !important;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-hero .lead {
    color: #ffffff;
}

@media (max-width: 768px) {
    .hero-section {
        max-height: 400px;
        min-height: 300px;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Animation classes */
.fade-in {
    animation: fadeIn var(--transition-slow);
}

.slide-in-up {
    animation: slideInUp var(--transition-slow);
}

.slide-in-left {
    animation: slideInLeft var(--transition-slow);
}

.slide-in-right {
    animation: slideInRight var(--transition-slow);
}

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   HELPER CLASSES
   ======================================== */
.text-center {
    text-align: center;
}

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

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

.text-primary {
    color: var(--color-text-primary) !important;
}

.text-accent {
    color: var(--color-accent-2) !important;
}

.bg-light {
    background-color: var(--color-gray-light) !important;
}

.bg-primary {
    background-color: var(--color-accent-1) !important;
}

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

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

.pt-1 { padding-top: var(--spacing-xs) !important; }
.pt-2 { padding-top: var(--spacing-sm) !important; }
.pt-3 { padding-top: var(--spacing-md) !important; }
.pt-4 { padding-top: var(--spacing-lg) !important; }
.pt-5 { padding-top: var(--spacing-xl) !important; }

.pb-1 { padding-bottom: var(--spacing-xs) !important; }
.pb-2 { padding-bottom: var(--spacing-sm) !important; }
.pb-3 { padding-bottom: var(--spacing-md) !important; }
.pb-4 { padding-bottom: var(--spacing-lg) !important; }
.pb-5 { padding-bottom: var(--spacing-xl) !important; }

.py-1 { padding-top: var(--spacing-xs) !important; padding-bottom: var(--spacing-xs) !important; }
.py-2 { padding-top: var(--spacing-sm) !important; padding-bottom: var(--spacing-sm) !important; }
.py-3 { padding-top: var(--spacing-md) !important; padding-bottom: var(--spacing-md) !important; }
.py-4 { padding-top: var(--spacing-lg) !important; padding-bottom: var(--spacing-lg) !important; }
.py-5 { padding-top: var(--spacing-xl) !important; padding-bottom: var(--spacing-xl) !important; }

.d-block {
    display: block;
}

.d-inline-block {
    display: inline-block;
}

.d-flex {
    display: flex;
}

.justify-content-center {
    justify-content: center;
}

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

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }

/* Responsive utilities */
@media (max-width: 576px) {
    .d-sm-none {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .d-md-none {
        display: none !important;
    }
}

@media (max-width: 992px) {
    .d-lg-none {
        display: none !important;
    }
}

/* ========================================
   SECTION SPACING
   ======================================== */
.section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-family: var(--font-headings);
    color: var(--color-text-primary);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.section-subtitle {
    color: var(--color-gray);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.img-fluid {
    max-width: 100%;
    height: auto;
}

.rounded {
    border-radius: var(--radius-md);
}

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

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

.overflow-hidden {
    overflow: hidden;
}

.position-relative {
    position: relative;
}

.w-100 {
    width: 100%;
}

.h-100 {
    height: 100%;
}

/* ========================================
   REQUIREMENTS SECTION FIX
   ======================================== */
.requirements-section .card {
    height: auto !important;
    min-height: auto !important;
}

.requirements-section {
    padding-top: 1rem !important;
    padding-bottom: 1rem !important;
}

/* ===================================
   GLOBAL FIX: Prevent cards from stretching with empty space
   =================================== */

/* Remove height: 100% from all cards globally */
.card {
    height: auto !important;
    min-height: auto !important;
}

/* Ensure card body doesn't create extra space */
.card-body {
    padding: 1rem !important;
}

/* Remove extra spacing in rows with cards */
.row .card {
    margin-bottom: 1rem;
}

/* Specific fix for accordion cards */
.accordion .card {
    height: auto !important;
}

/* Fix for cards in sections */
section .card {
    height: fit-content !important;
}

/* Fix for Bootstrap grid cards */
.row.g-3 .card,
.row.g-4 .card {
    height: auto !important;
}

/* Utility class for manual height control */
.h-auto {
    height: auto !important;
}

/* ===================================
   CTA Section Styles
   =================================== */

/* White heading in CTA sections */
.cta-section h2,
.cta-section h3 {
    color: #ffffff !important;
}

/* Pulsing animation for CTA headings */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

.cta-section h2 {
    animation: pulse 2s ease-in-out infinite;
}

/* Alternative subtle pulse */
@keyframes subtle-pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.85;
    }
}

/* Use this if full pulse is too much */
.cta-section h2.subtle-pulse {
    animation: subtle-pulse 3s ease-in-out infinite;
}

/* ===================================
   Parallax Section Styles
   =================================== */

/* White heading with shadow and pulse animation */
.parallax-section h2 {
    color: #ffffff !important;
    text-shadow:
        2px 2px 8px rgba(0, 0, 0, 0.8),
        0 0 20px rgba(0, 0, 0, 0.5);
    animation: pulse 2s ease-in-out infinite;
}

/* White text with shadow for better readability */
.parallax-section p,
.parallax-section .lead {
    color: #ffffff !important;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
}

/* ===================================
   Entry Requirements Button Style
   =================================== */
.btn-requirements {
    background-color: #003366 !important;
    border-color: #003366 !important;
    color: #ffffff !important;
}

.btn-requirements:hover,
.btn-requirements:focus {
    background-color: #002147 !important;
    border-color: #002147 !important;
    color: #ffffff !important;
}