:root {
    --birthday-primary: #d4af37;
    --birthday-secondary: #b8860b;
    --birthday-accent: #ffd700;
    --birthday-warm: #ff6b35;
    --birthday-soft: #ffb347;
    --birthday-glow: #fff8dc;
    --birthday-gradient-main: linear-gradient(135deg, #ffd700 0%, #ff8c00 25%, #ff6347 50%, #da70d6 75%, #9370db 100%);
    --birthday-gradient-border: linear-gradient(45deg, #ffd700, #ff69b4, #40e0d0, #9370db);
    --birthday-gradient-soft: linear-gradient(to bottom, rgba(255, 215, 0, 0.3), rgba(255, 140, 0, 0.2));
    
    /*Shadows & Effects */
    --birthday-glow-soft: 0 0 20px rgba(255, 215, 0, 0.4);
    --birthday-glow-strong: 0 0 30px rgba(255, 215, 0, 0.6);
    --birthday-text-glow: 0 0 10px rgba(255, 215, 0, 0.8);
    
    /* Animation Timings */
    --birthday-pulse: 2.5s;
    --birthday-shimmer: 3s;
    --birthday-float: 4s;
}

/* Body Override */
body {
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 105, 180, 0.1) 0%, transparent 50%),
        url('../layout/2024/images/body-texture-birthday-nav.webp');
    background-blend-mode: overlay, overlay, normal;
    background-size: 100% 100%, 100% 100%, repeat;
}

/* Navigation Enhancements */
.navbar {
    border-bottom: 3px solid transparent;
    border-image: var(--birthday-gradient-border) 1;
}

.nav-item a {
    color: var(--birthday-accent);
    text-shadow: 
        1px 1px 2px rgba(0, 0, 0, 0.5),
        0 0 8px rgba(255, 215, 0, 0.6),
        0 0 16px rgba(255, 105, 180, 0.3);
    transition: all 0.3s ease;
}

.nav-item a:hover {
    color: var(--birthday-glow);
    text-shadow: 
        1px 1px 2px rgba(0, 0, 0, 0.7),
        0 0 12px rgba(255, 215, 0, 0.8),
        0 0 20px rgba(255, 105, 180, 0.5);
    transform: translateY(-1px);
}

.sub-nav a {
    color: var(--birthday-glow);
    transition: all 0.3s ease;
    border-radius: 4px;
}

.sub-nav a:hover {
    color: var(--birthday-accent);
    background: rgba(255, 215, 0, 0.1);
    box-shadow: inset 0 0 10px rgba(255, 215, 0, 0.2);
}

/* Hero Section */
.logo a {
    height: 200px;
    background: url('/layout/2024/images/birthday-syrnia-logo.webp') center/contain no-repeat;
    filter: drop-shadow(var(--birthday-glow-soft));
    transition: filter 0.3s ease;
}

.logo a:hover {
    filter: drop-shadow(var(--birthday-glow-strong));
}

.hero {
    background: url('../layout/2024/images/hero-background-brithday.webp') 100% 35% / cover no-repeat;
    border-bottom: 4px solid var(--birthday-primary);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(109, 57, 66, 0.1);
    pointer-events: none;
    z-index: 1;
}

.hero-header {
    position: relative;
    z-index: 2;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 12px;
    padding: 16px 24px;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.8),
        0 0 12px rgba(255, 215, 0, 0.6),
        0 0 24px rgba(255, 105, 180, 0.3);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.hero-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--birthday-gradient-main);
    opacity: 0.1;
    border-radius: inherit;
    z-index: -1;
}

/* Footer Enhancements */
.footer {
    border-top: 3px solid transparent;
    border-image: var(--birthday-gradient-border) 1;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.6));
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--birthday-gradient-border);
    opacity: 0.6;
}

.footer-icons {
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.8),
        0 0 8px rgba(255, 215, 0, 0.4);
}

.footer-icons a {
    color: var(--birthday-soft);
    transition: all 0.3s ease;
}

.footer-icons a:hover {
    color: var(--birthday-accent);
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.8),
        0 0 12px rgba(255, 215, 0, 0.6);
    transform: translateY(-2px);
}

.footer-links a {
    text-shadow: 
        1px 1px 2px rgba(0, 0, 0, 0.6),
        0 0 8px rgba(255, 215, 0, 0.4);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    text-shadow: 
        1px 1px 2px rgba(0, 0, 0, 0.8),
        0 0 12px rgba(255, 215, 0, 0.6);
}

/* Animations */
@keyframes birthdayPulse {
    0%, 100% {
        box-shadow: 
            0 4px 15px rgba(0, 0, 0, 0.3),
            0 0 20px rgba(255, 215, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.2);
    }
    50% {
        box-shadow: 
            0 6px 20px rgba(0, 0, 0, 0.4),
            0 0 30px rgba(255, 215, 0, 0.5),
            0 0 40px rgba(255, 105, 180, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }
}

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

@keyframes navShimmer {
    0% { left: -100%; }
    50% { left: 100%; }
    100% { left: 100%; }
}

/* Responsive Design */
@media (max-width: 768px) {
    
    .hero-header {
        padding: 12px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    
    .logo a {
        width: min(300px, 80vw);
        min-height: 150px;
    }
    
    .hero-header {
        padding: 10px 16px;
        font-size: 12px;
    }
}