:root {
    /* Unique Color Palette - Artistic Viking Theme */
    --artd-primary-gold: #f4d03f;
    --artd-secondary-amber: #f39c12;
    --artd-accent-burgundy: #8b2635;
    --artd-dark-navy: #1a1f35;
    --artd-midnight-blue: #2c3e50;
    --artd-light-cream: #fef9e7;
    --artd-storm-silver: #bdc3c7;
    --artd-flame-coral: #e74c3c;
    --artd-mystic-teal: #16a085;
    --artd-royal-purple: #6c3483;
    
    /* Typography */
    --artd-font-display: 'Playfair Display', serif;
    --artd-font-body: 'Lato', sans-serif;
    
    /* Spacing Scale */
    --artd-space-unit: 1rem;
    --artd-space-xs: calc(var(--artd-space-unit) * 0.5);
    --artd-space-sm: calc(var(--artd-space-unit) * 1);
    --artd-space-md: calc(var(--artd-space-unit) * 2);
    --artd-space-lg: calc(var(--artd-space-unit) * 3);
    --artd-space-xl: calc(var(--artd-space-unit) * 4);
    --artd-space-xxl: calc(var(--artd-space-unit) * 6);
    
    /* Transitions */
    --artd-transition-quick: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --artd-transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --artd-transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --artd-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --artd-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --artd-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --artd-shadow-glow: 0 0 30px rgba(244, 208, 63, 0.4);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--artd-font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--artd-dark-navy);
    background-color: var(--artd-light-cream);
    overflow-x: hidden;
}

/* ========== Animated Background ========== */
.artd-background-animated {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, var(--artd-dark-navy) 0%, var(--artd-midnight-blue) 50%, var(--artd-royal-purple) 100%);
    background-size: 400% 400%;
    animation: artd-gradient-shift 15s ease infinite;
    overflow: hidden;
}

.artd-background-animated::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(244, 208, 63, 0.1) 0%, transparent 70%);
    animation: artd-rotate 20s linear infinite;
}

.artd-background-animated::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(244, 208, 63, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 38, 53, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(108, 52, 131, 0.1) 0%, transparent 50%);
    animation: artd-pulse 8s ease-in-out infinite;
}

@keyframes artd-gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes artd-rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes artd-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ========== Typography ========== */
.artd-heading-primary {
    font-family: var(--artd-font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--artd-primary-gold);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    margin-bottom: var(--artd-space-md);
}

.artd-heading-secondary {
    font-family: var(--artd-font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    line-height: 1.3;
    color: var(--artd-primary-gold);
    margin-bottom: var(--artd-space-sm);
}

.artd-heading-tertiary {
    font-family: var(--artd-font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    line-height: 1.4;
    color: var(--artd-secondary-amber);
    margin-bottom: var(--artd-space-sm);
}

.artd-text-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--artd-light-cream);
    margin-bottom: var(--artd-space-sm);
}

.artd-text-lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--artd-storm-silver);
    font-weight: 300;
}

/* ========== Container & Layout ========== */
.artd-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--artd-space-md);
}

.artd-section {
    padding: var(--artd-space-xxl) 0;
    position: relative;
}

.artd-wrapper {
    position: relative;
    z-index: 1;
}

/* ========== Header & Navigation ========== */
.artd-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(26, 31, 53, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--artd-shadow-md);
    transition: var(--artd-transition-smooth);
}

.artd-header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--artd-space-sm) var(--artd-space-md);
    max-width: 1200px;
    margin: 0 auto;
}

.artd-logo-wrapper {
    display: flex;
    align-items: center;
    gap: var(--artd-space-sm);
}

.artd-logo-image {
    height: 60px;
    width: auto;
    transition: var(--artd-transition-smooth);
}

.artd-logo-image:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 10px var(--artd-primary-gold));
}

.artd-nav-desktop {
    display: flex;
    gap: var(--artd-space-md);
    list-style: none;
    align-items: center;
}

.artd-nav-link {
    color: var(--artd-light-cream);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    padding: var(--artd-space-xs) var(--artd-space-sm);
    border-radius: 4px;
    transition: var(--artd-transition-smooth);
    position: relative;
}

.artd-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--artd-primary-gold);
    transition: var(--artd-transition-smooth);
    transform: translateX(-50%);
}

.artd-nav-link:hover {
    color: var(--artd-primary-gold);
}

.artd-nav-link:hover::after {
    width: 80%;
}

/* ========== Burger Menu ========== */
.artd-burger-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--artd-space-xs);
    z-index: 1001;
    position: relative;
}

.artd-burger-icon {
    width: 30px;
    height: 30px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
}

.artd-burger-line {
    width: 100%;
    height: 3px;
    background: var(--artd-primary-gold);
    border-radius: 2px;
    transition: var(--artd-transition-smooth);
    transform-origin: center;
}

.artd-burger-toggle.active .artd-burger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.artd-burger-toggle.active .artd-burger-line:nth-child(2) {
    opacity: 0;
}

.artd-burger-toggle.active .artd-burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.artd-nav-mobile {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background: rgba(26, 31, 53, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
    transition: right var(--artd-transition-smooth);
    z-index: 1000;
    padding: var(--artd-space-xxl) var(--artd-space-md);
    overflow-y: auto;
}

.artd-nav-mobile.active {
    right: 0;
}

.artd-nav-mobile-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--artd-space-md);
    margin-top: var(--artd-space-xl);
}

.artd-nav-mobile-link {
    color: var(--artd-light-cream);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 500;
    padding: var(--artd-space-sm);
    border-left: 3px solid transparent;
    transition: var(--artd-transition-smooth);
    display: block;
}

.artd-nav-mobile-link:hover {
    color: var(--artd-primary-gold);
    border-left-color: var(--artd-primary-gold);
    padding-left: var(--artd-space-md);
}

.artd-close-button {
    position: absolute;
    top: var(--artd-space-md);
    right: var(--artd-space-md);
    background: none;
    border: none;
    color: var(--artd-primary-gold);
    font-size: 2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--artd-transition-smooth);
}

.artd-close-button:hover {
    background: rgba(244, 208, 63, 0.1);
    transform: rotate(90deg);
}

.artd-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--artd-transition-smooth);
}

.artd-overlay.active {
    display: block;
    opacity: 1;
}

/* ========== Hero Section ========== */
.artd-hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--artd-space-xxl) var(--artd-space-md);
    text-align: center;
}

.artd-hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    z-index: 0;
}

.artd-hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    animation: artd-fade-in-up 1s ease-out;
}

@keyframes artd-fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.artd-hero-subtitle {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    color: var(--artd-storm-silver);
    margin-bottom: var(--artd-space-lg);
    font-weight: 300;
}

.artd-button-primary {
    display: inline-block;
    padding: var(--artd-space-sm) var(--artd-space-lg);
    background: linear-gradient(135deg, var(--artd-primary-gold), var(--artd-secondary-amber));
    color: var(--artd-dark-navy);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    border-radius: 50px;
    box-shadow: var(--artd-shadow-lg);
    transition: var(--artd-transition-smooth);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.artd-button-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.artd-button-primary:hover::before {
    left: 100%;
}

.artd-button-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--artd-shadow-glow);
    border-color: var(--artd-primary-gold);
}

/* ========== Game of the Week ========== */
.artd-game-week-section {
    background: rgba(26, 31, 53, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: var(--artd-space-xl);
    margin: var(--artd-space-xl) 0;
    box-shadow: var(--artd-shadow-lg);
}

.artd-game-week-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--artd-space-xl);
    align-items: center;
}

.artd-game-image-wrapper {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--artd-shadow-lg);
    transition: var(--artd-transition-smooth);
}

.artd-game-image-wrapper:hover {
    transform: scale(1.05);
    box-shadow: var(--artd-shadow-glow);
}

.artd-game-image {
    width: 100%;
    height: auto;
    display: block;
}

.artd-game-description {
    color: var(--artd-light-cream);
}

/* ========== Legend Section ========== */
.artd-legend-section {
    background: rgba(139, 38, 53, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: var(--artd-space-xl);
    margin: var(--artd-space-xl) 0;
    position: relative;
    overflow: hidden;
}

.artd-legend-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(244, 208, 63, 0.1) 0%, transparent 70%);
    animation: artd-rotate 25s linear infinite;
}

.artd-legend-content {
    position: relative;
    z-index: 1;
}

.artd-legend-image {
    width: 100%;
    max-width: 600px;
    border-radius: 15px;
    margin: var(--artd-space-md) 0;
    box-shadow: var(--artd-shadow-md);
}

/* ========== Quiz Section ========== */
.artd-quiz-section {
    background: rgba(108, 52, 131, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: var(--artd-space-xl);
    margin: var(--artd-space-xl) 0;
}

.artd-quiz-image {
    width: 100%;
    max-width: 500px;
    border-radius: 15px;
    margin: var(--artd-space-md) auto;
    display: block;
    box-shadow: var(--artd-shadow-md);
}

.artd-quiz-question {
    background: rgba(26, 31, 53, 0.5);
    padding: var(--artd-space-md);
    border-radius: 10px;
    margin-bottom: var(--artd-space-md);
    border-left: 4px solid var(--artd-primary-gold);
}

.artd-quiz-options {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--artd-space-sm);
    margin-top: var(--artd-space-sm);
}

.artd-quiz-option {
    padding: var(--artd-space-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--artd-transition-smooth);
    color: var(--artd-light-cream);
}

.artd-quiz-option:hover {
    background: rgba(244, 208, 63, 0.2);
    transform: translateX(10px);
}

.artd-quiz-option.correct {
    background: rgba(22, 160, 133, 0.3);
    border-left: 4px solid var(--artd-mystic-teal);
}

/* ========== Footer ========== */
.artd-footer {
    background: rgba(26, 31, 53, 0.95);
    padding: var(--artd-space-xl) 0;
    margin-top: var(--artd-space-xxl);
    border-top: 2px solid var(--artd-primary-gold);
}

.artd-footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--artd-space-lg);
    margin-bottom: var(--artd-space-md);
}

.artd-footer-section h3 {
    color: var(--artd-primary-gold);
    margin-bottom: var(--artd-space-sm);
    font-family: var(--artd-font-display);
}

.artd-footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--artd-space-xs);
}

.artd-footer-link {
    color: var(--artd-storm-silver);
    text-decoration: none;
    transition: var(--artd-transition-smooth);
}

.artd-footer-link:hover {
    color: var(--artd-primary-gold);
    padding-left: var(--artd-space-xs);
}

.artd-footer-contact {
    color: var(--artd-storm-silver);
    line-height: 1.8;
}

.artd-footer-partners {
    padding: var(--artd-space-lg) 0;
    border-top: 1px solid rgba(244, 208, 63, 0.2);
    border-bottom: 1px solid rgba(244, 208, 63, 0.2);
    margin: var(--artd-space-md) 0;
}

.artd-partners-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--artd-space-md);
    align-items: center;
    justify-items: center;
    margin: 0 auto;
}

.artd-partner-link {
    display: flex;
    height: 50px;
    align-items: center;
    justify-content: center;
    padding: var(--artd-space-sm);
    transition: var(--artd-transition-smooth);
    opacity: 0.7;
    background: #7d7d7d;
    border-radius: 10px;
}

.artd-partner-link:hover {
    opacity: 1;
    transform: scale(1.1);
}

.artd-partner-logo {
    max-width: 100%;
    max-height: 35px;
    width: auto;

    object-fit: contain;
    transition: var(--artd-transition-smooth);
}

.artd-partner-link:hover .artd-partner-logo {
    filter: brightness(1.1);
}

.artd-footer-bottom {
    text-align: center;
    padding-top: var(--artd-space-md);
    color: var(--artd-storm-silver);
    font-size: 0.9rem;
}

/* ========== Disclaimer ========== */
.artd-disclaimer {
    background: rgba(231, 76, 60, 0.2);
    border-left: 4px solid var(--artd-flame-coral);
    padding: var(--artd-space-md);
    border-radius: 8px;
    margin: var(--artd-space-lg) 0;
    color: var(--artd-light-cream);
}

.artd-disclaimer-text {
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ========== Responsive Design ========== */
@media (max-width: 991px) {
    .artd-nav-desktop {
        display: none;
    }
    
    .artd-burger-toggle {
        display: flex;
    }
    
    .artd-nav-mobile {
        display: block;
    }
    
    .artd-game-week-content {
        grid-template-columns: 1fr;
    }
    
    .artd-footer-content {
        grid-template-columns: 1fr;
    }
    
    .artd-partners-grid,
    .partners-grid {
        grid-template-columns: 1fr;
        gap: var(--artd-space-md);
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .artd-section {
        padding: var(--artd-space-lg) 0;
    }
    
    .artd-hero-section {
        min-height: 80vh;
        padding: var(--artd-space-lg) var(--artd-space-sm);
    }
    
    .artd-game-week-section,
    .artd-legend-section,
    .artd-quiz-section {
        padding: var(--artd-space-md);
        margin: var(--artd-space-md) 0;
    }
}

@media (max-width: 480px) {
    .artd-container {
        padding: 0 var(--artd-space-sm);
    }
    
    .artd-logo-image {
        height: 45px;
    }
}

/* ========== Utility Classes ========== */
.artd-text-center {
    text-align: center;
}

.artd-mb-sm {
    margin-bottom: var(--artd-space-sm);
}

.artd-mb-md {
    margin-bottom: var(--artd-space-md);
}

.artd-mb-lg {
    margin-bottom: var(--artd-space-lg);
}

.artd-mt-sm {
    margin-top: var(--artd-space-sm);
}

.artd-mt-md {
    margin-top: var(--artd-space-md);
}

.artd-mt-lg {
    margin-top: var(--artd-space-lg);
}

/* ========== Footer Partners (for valhalla-slot.html) ========== */
.footer-partners-block {
    padding: var(--artd-space-lg) 0;
    border-top: 1px solid rgba(244, 208, 63, 0.2);
    border-bottom: 1px solid rgba(244, 208, 63, 0.2);
    margin: var(--artd-space-md) 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--artd-space-md);
    align-items: center;
    justify-items: center;
    max-width: 600px;
    margin: 0 auto;
}

.partner-link {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--artd-space-sm);
    transition: var(--artd-transition-smooth);
    opacity: 0.7;
}

.partner-link:hover {
    opacity: 1;
    transform: scale(1.1);
}

.partner-logo {
    max-width: 100%;
    max-height: 60px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: brightness(0.9);
    transition: var(--artd-transition-smooth);
}

.partner-link:hover .partner-logo {
    filter: brightness(1.1);
}