* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial Black', 'Arial Bold', sans-serif;
    background: #0a0a0a;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 215, 0, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255, 215, 0, 0.08) 0%, transparent 50%);
    animation: backgroundPulse 8s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

/* Diagonal Stripes Background Effect */
body::after {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 80px,
        rgba(255, 215, 0, 0.02) 80px,
        rgba(255, 215, 0, 0.02) 160px
    );
    animation: diagonalMove 30s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes diagonalMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(80px, 80px); }
}

/* Header Styling */
.header {
    background: linear-gradient(180deg, 
        rgba(0, 0, 0, 0.95) 0%, 
        rgba(20, 20, 20, 0.9) 100%);
    border-bottom: 5px solid transparent;
    border-image: linear-gradient(90deg, 
        transparent 0%, 
        #FFD700 20%, 
        #FFA500 50%,
        #FFD700 80%, 
        transparent 100%) 1;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.8),
        0 0 80px rgba(255, 215, 0, 0.15);
    position: relative;
    z-index: 10;
    overflow: hidden;
}

/* Dynamic Header Background Effect */
.header::before {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: conic-gradient(
        from 0deg at 50% 50%,
        transparent 0deg,
        rgba(255, 215, 0, 0.1) 60deg,
        transparent 120deg
    );
    animation: rotateGlow 10s linear infinite;
    pointer-events: none;
}

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

.header-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: 30px 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
}

.logo-container {
    position: relative;
    display: inline-block;
    animation: logoEntrance 1.2s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes logoEntrance {
    0% {
        opacity: 0;
        transform: scale(0.5) rotateY(180deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotateY(0deg);
    }
}

/* Logo Glow Effect */
.logo-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140%;
    height: 140%;
    background: radial-gradient(
        circle,
        rgba(255, 215, 0, 0.3) 0%,
        rgba(255, 165, 0, 0.2) 40%,
        transparent 70%
    );
    animation: glowPulse 3s ease-in-out infinite;
    border-radius: 50%;
    z-index: -1;
}

@keyframes glowPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.8;
    }
}

.logo {
    height: 140px;
    width: auto;
    filter: drop-shadow(0 0 20px rgba(255, 215, 0, 0.6))
            drop-shadow(0 0 40px rgba(255, 215, 0, 0.4))
            drop-shadow(0 8px 16px rgba(0, 0, 0, 0.9));
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    z-index: 1;
}

.logo-container:hover .logo {
    transform: scale(1.1) rotateZ(5deg);
    filter: drop-shadow(0 0 30px rgba(255, 215, 0, 0.9))
            drop-shadow(0 0 60px rgba(255, 215, 0, 0.6))
            drop-shadow(0 12px 24px rgba(0, 0, 0, 0.9));
}

/* Header Text - Hidden but keeping structure */
.header-text {
    display: none;
}

/* Main Content Section */
.content-section {
    max-width: 1600px;
    margin: 60px auto;
    padding: 0 40px;
    position: relative;
    z-index: 1;
}

/* Decorative Line */
.decoration-line {
    height: 4px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        #FFD700 15%,
        #FFA500 30%,
        #FFD700 50%,
        #FFA500 70%,
        #FFD700 85%,
        transparent 100%);
    margin: 30px auto 50px;
    max-width: 800px;
    position: relative;
    box-shadow: 
        0 0 20px rgba(255, 215, 0, 0.6),
        0 4px 10px rgba(0, 0, 0, 0.8);
    animation: lineShimmer 3s ease-in-out infinite;
}

@keyframes lineShimmer {
    0%, 100% {
        box-shadow: 
            0 0 20px rgba(255, 215, 0, 0.6),
            0 4px 10px rgba(0, 0, 0, 0.8);
    }
    50% {
        box-shadow: 
            0 0 40px rgba(255, 215, 0, 0.9),
            0 4px 15px rgba(0, 0, 0, 0.9);
    }
}

.decoration-line::before,
.decoration-line::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 12px;
    height: 12px;
    background: #FFD700;
    border-radius: 50%;
    transform: translateY(-50%);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.8);
    animation: dotPulse 2s ease-in-out infinite;
}

.decoration-line::before {
    left: 0;
}

.decoration-line::after {
    right: 0;
    animation-delay: 1s;
}

@keyframes dotPulse {
    0%, 100% {
        transform: translateY(-50%) scale(1);
        box-shadow: 0 0 15px rgba(255, 215, 0, 0.8);
    }
    50% {
        transform: translateY(-50%) scale(1.5);
        box-shadow: 0 0 30px rgba(255, 215, 0, 1);
    }
}

/* Image Container with Premium Effects */
.image-container {
    background: linear-gradient(145deg, 
        rgba(10, 10, 10, 0.95) 0%, 
        rgba(30, 30, 30, 0.9) 100%);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.9),
        inset 0 0 0 2px rgba(255, 215, 0, 0.3);
    animation: containerEntrance 1s ease-out 0.3s backwards;
}

@keyframes containerEntrance {
    0% {
        opacity: 0;
        transform: translateY(50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Animated Border Effect */
.image-container::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, 
        #FFD700, #FFA500, #FFD700, #FFA500);
    background-size: 300% 300%;
    border-radius: 20px;
    z-index: -1;
    animation: borderGradient 4s ease-in-out infinite;
    opacity: 0.6;
}

@keyframes borderGradient {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Corner Accent Lines */
.image-container::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid rgba(255, 215, 0, 0.2);
    border-radius: 15px;
    pointer-events: none;
}

/* Spotlight Effect */
.invitation-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 12px;
    position: relative;
    z-index: 1;
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.8),
        0 0 60px rgba(255, 215, 0, 0.2);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.invitation-image:hover {
    transform: scale(1.02);
    box-shadow: 
        0 15px 60px rgba(0, 0, 0, 0.9),
        0 0 80px rgba(255, 215, 0, 0.4);
}

/* Floating Particles Effect */
@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-20px) translateX(10px);
    }
    50% {
        transform: translateY(-10px) translateX(-10px);
    }
    75% {
        transform: translateY(-30px) translateX(5px);
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .header-content {
        padding: 25px 30px;
    }
    
    .logo {
        height: 120px;
    }
    
    .content-section {
        margin: 50px auto;
        padding: 0 30px;
    }
    
    .image-container {
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .header-content {
        padding: 20px 20px;
    }
    
    .logo {
        height: 90px;
    }
    
    .content-section {
        margin: 30px auto;
        padding: 0 20px;
    }
    
    .image-container {
        padding: 20px;
        border-radius: 15px;
    }
    
    .decoration-line {
        margin: 20px auto 30px;
        height: 3px;
    }
}

@media (max-width: 480px) {
    .header {
        border-bottom-width: 3px;
    }
    
    .header-content {
        padding: 15px 15px;
    }
    
    .logo {
        height: 70px;
    }
    
    .logo-container::before {
        width: 120%;
        height: 120%;
    }
    
    .content-section {
        margin: 20px auto;
        padding: 0 15px;
    }
    
    .image-container {
        padding: 15px;
        border-radius: 12px;
    }
    
    .decoration-line {
        height: 2px;
        margin: 15px auto 25px;
    }
}

/* Tablet Landscape */
@media (min-width: 769px) and (max-width: 1024px) {
    .logo {
        height: 110px;
    }
    
    .content-section {
        margin: 40px auto;
    }
    
    .image-container {
        padding: 35px;
    }
}

/* Large Screens */
@media (min-width: 1600px) {
    .logo {
        height: 160px;
    }
    
    .image-container {
        padding: 50px;
    }
    
    .decoration-line {
        max-width: 1000px;
        height: 5px;
    }
}

/* Bottom Section (Footer-like but not footer) */
.bottom-section {
    margin-top: 80px;
    padding: 60px 40px;
    text-align: center;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.bottom-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 215, 0, 0.3) 20%,
        rgba(255, 215, 0, 0.6) 50%,
        rgba(255, 215, 0, 0.3) 80%,
        transparent 100%);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
}

.club-name {
    font-size: clamp(1.8rem, 4vw, 3.5rem);
    font-weight: 900;
    letter-spacing: 4px;
    text-transform: uppercase;
    background: linear-gradient(135deg, 
        #FFD700 0%, 
        #FFA500 25%,
        #FFD700 50%,
        #FFA500 75%,
        #FFD700 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease-in-out infinite;
    text-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
    position: relative;
    display: inline-block;
    padding: 20px 40px;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.club-name::before {
    content: attr(data-text);
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        #FFD700 0%, 
        #FFA500 50%,
        #FFD700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    z-index: -1;
    filter: blur(20px);
    opacity: 0.5;
    animation: glowText 3s ease-in-out infinite;
}

@keyframes glowText {
    0%, 100% {
        opacity: 0.5;
        filter: blur(20px);
    }
    50% {
        opacity: 0.8;
        filter: blur(30px);
    }
}

.club-name::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        #FFD700 50%, 
        transparent 100%);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.8);
    animation: underlinePulse 2s ease-in-out infinite;
}

@keyframes underlinePulse {
    0%, 100% {
        width: 60%;
        opacity: 0.6;
    }
    50% {
        width: 80%;
        opacity: 1;
    }
}

.year-badge {
    display: inline-block;
    margin-top: 25px;
    padding: 12px 35px;
    background: linear-gradient(135deg, 
        rgba(255, 215, 0, 0.15) 0%, 
        rgba(255, 165, 0, 0.15) 100%);
    border: 2px solid rgba(255, 215, 0, 0.4);
    border-radius: 50px;
    font-size: clamp(1rem, 2vw, 1.4rem);
    font-weight: bold;
    color: #FFD700;
    letter-spacing: 3px;
    box-shadow: 
        0 5px 20px rgba(255, 215, 0, 0.2),
        inset 0 1px 3px rgba(255, 255, 255, 0.1);
    animation: badgeFloat 3s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.year-badge::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 215, 0, 0.2) 50%,
        transparent 70%
    );
    animation: badgeShine 3s ease-in-out infinite;
}

@keyframes badgeFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

@keyframes badgeShine {
    0% {
        transform: rotate(0deg) translate(-100%, -100%);
    }
    100% {
        transform: rotate(0deg) translate(100%, 100%);
    }
}

/* High Performance Animations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Responsive for Bottom Section */
@media (max-width: 768px) {
    .bottom-section {
        margin-top: 50px;
        padding: 40px 20px;
    }
    
    .club-name {
        padding: 15px 25px;
        letter-spacing: 2px;
    }
    
    .year-badge {
        padding: 10px 25px;
        margin-top: 20px;
        letter-spacing: 2px;
    }
}

@media (max-width: 480px) {
    .bottom-section {
        margin-top: 40px;
        padding: 30px 15px;
    }
    
    .club-name {
        padding: 10px 20px;
        letter-spacing: 1px;
    }
    
    .club-name::after {
        bottom: -5px;
        height: 2px;
    }
    
    .year-badge {
        padding: 8px 20px;
        margin-top: 15px;
        letter-spacing: 1px;
    }
}