/* Christmas Button */
.christmas-button {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: transparent;
    border: 2px solid #FFD700;
    border-radius: 12px;
    cursor: pointer;
    color: var(--color-white);
    opacity: 0;
    visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0px 5px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    z-index: 100;
}

.christmas-button.show {
    opacity: 1;
    visibility: visible;
}

.christmas-button:hover {
    background: var(--color-red);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 3px 8px #FFD700;
    animation: none;
}

.christmas-button::before {
    content: '🎄';
    font-size: 20px;
    animation: xmas-iconRotate 3s ease-in-out infinite;
}

@keyframes xmas-iconRotate {
    0%, 100% { 
        transform: rotate(-10deg); 
    }
    50% { 
        transform: rotate(10deg); 
    }
}

/* Christmas Page - Hidden by default */
.christmas-page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #d4145a 0%, #8b1538 100%);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transform: scale(1);
    transition: opacity 0.5s ease, visibility 0s 0.5s, transform 0.5s ease;
    overflow: hidden;
}

/* Show animation */
.christmas-page.show {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
    transition: opacity 0.5s ease, visibility 0s, transform 0.5s ease;
}

/* Hiding animation - zoom out - starts after container */
.christmas-page.hiding {
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.6s ease 1.6s, 
                transform 0.6s ease 1.6s, 
                visibility 0s 2.2s;
}

/* Ornament animation - start from top */
.xmas-ornament {
    position: absolute;
    top: -150px; /* Start from above viewport */
    transform-origin: top center;
    opacity: 0;
    transition: top 0.8s cubic-bezier(0.34, 1.56, 0.64, 1), 
                opacity 0.5s ease;
}

/* When page is shown, ornaments drop down */
.christmas-page.show .xmas-ornament {
    top: 0;
    opacity: 1;
    animation: xmas-swing 4s ease-in-out infinite;
}

/* When page is hiding, ornaments fly up with reverse stagger */
.christmas-page.hiding .xmas-ornament {
    top: -150px;
    opacity: 0;
    animation: none;
    transition: top 0.6s cubic-bezier(0.6, 0.04, 0.98, 0.335), 
                opacity 0.4s ease;
}

/* Reverse stagger - last ornament goes first */
.christmas-page.hiding .xmas-ornament:nth-child(20) { transition-delay: 0s; }
.christmas-page.hiding .xmas-ornament:nth-child(19) { transition-delay: 0.05s; }
.christmas-page.hiding .xmas-ornament:nth-child(18) { transition-delay: 0.1s; }
.christmas-page.hiding .xmas-ornament:nth-child(17) { transition-delay: 0.15s; }
.christmas-page.hiding .xmas-ornament:nth-child(16) { transition-delay: 0.2s; }
.christmas-page.hiding .xmas-ornament:nth-child(15) { transition-delay: 0.25s; }
.christmas-page.hiding .xmas-ornament:nth-child(14) { transition-delay: 0.3s; }
.christmas-page.hiding .xmas-ornament:nth-child(13) { transition-delay: 0.35s; }
.christmas-page.hiding .xmas-ornament:nth-child(12) { transition-delay: 0.4s; }
.christmas-page.hiding .xmas-ornament:nth-child(11) { transition-delay: 0.45s; }
.christmas-page.hiding .xmas-ornament:nth-child(10) { transition-delay: 0.5s; }
.christmas-page.hiding .xmas-ornament:nth-child(9) { transition-delay: 0.55s; }
.christmas-page.hiding .xmas-ornament:nth-child(8) { transition-delay: 0.6s; }
.christmas-page.hiding .xmas-ornament:nth-child(7) { transition-delay: 0.65s; }
.christmas-page.hiding .xmas-ornament:nth-child(6) { transition-delay: 0.7s; }
.christmas-page.hiding .xmas-ornament:nth-child(5) { transition-delay: 0.75s; }
.christmas-page.hiding .xmas-ornament:nth-child(4) { transition-delay: 0.8s; }
.christmas-page.hiding .xmas-ornament:nth-child(3) { transition-delay: 0.85s; }
.christmas-page.hiding .xmas-ornament:nth-child(2) { transition-delay: 0.9s; }
.christmas-page.hiding .xmas-ornament:nth-child(1) { transition-delay: 0.95s; }

/* Stagger the ornament drops */
.christmas-page.show .xmas-ornament:nth-child(1) { transition-delay: 0.2s; }
.christmas-page.show .xmas-ornament:nth-child(2) { transition-delay: 0.25s; }
.christmas-page.show .xmas-ornament:nth-child(3) { transition-delay: 0.3s; }
.christmas-page.show .xmas-ornament:nth-child(4) { transition-delay: 0.35s; }
.christmas-page.show .xmas-ornament:nth-child(5) { transition-delay: 0.4s; }
.christmas-page.show .xmas-ornament:nth-child(6) { transition-delay: 0.45s; }
.christmas-page.show .xmas-ornament:nth-child(7) { transition-delay: 0.5s; }
.christmas-page.show .xmas-ornament:nth-child(8) { transition-delay: 0.55s; }
.christmas-page.show .xmas-ornament:nth-child(9) { transition-delay: 0.6s; }
.christmas-page.show .xmas-ornament:nth-child(10) { transition-delay: 0.65s; }
.christmas-page.show .xmas-ornament:nth-child(11) { transition-delay: 0.7s; }
.christmas-page.show .xmas-ornament:nth-child(12) { transition-delay: 0.75s; }
.christmas-page.show .xmas-ornament:nth-child(13) { transition-delay: 0.8s; }
.christmas-page.show .xmas-ornament:nth-child(14) { transition-delay: 0.85s; }
.christmas-page.show .xmas-ornament:nth-child(15) { transition-delay: 0.9s; }
.christmas-page.show .xmas-ornament:nth-child(16) { transition-delay: 0.95s; }
.christmas-page.show .xmas-ornament:nth-child(17) { transition-delay: 1s; }
.christmas-page.show .xmas-ornament:nth-child(18) { transition-delay: 1.05s; }
.christmas-page.show .xmas-ornament:nth-child(19) { transition-delay: 1.1s; }
.christmas-page.show .xmas-ornament:nth-child(20) { transition-delay: 1.15s; }

/* Button hide/show animation */
.christmas-button.hidden {
    animation: xmas-buttonFadeOut 0.3s ease forwards;
}

.christmas-button.visible {
    animation: xmas-buttonFadeIn 0.3s ease forwards;
}

@keyframes xmas-buttonFadeOut {
    0% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    100% {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
        pointer-events: none;
    }
}

@keyframes xmas-buttonFadeIn {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
        pointer-events: auto;
    }
}

/* Snowflakes entrance */
.xmas-snowflake {
    opacity: 0;
    animation: xmas-snowflakeFadeIn 1s ease forwards, xmas-fall linear infinite;
}

@keyframes xmas-snowflakeFadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 0.6;
    }
}

@keyframes xmas-fall {
    to {
        transform: translateY(100vh) rotate(360deg);
    }
}

/* Ornament Container */
.xmas-ornament-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 200px;
    z-index: 2;
    pointer-events: none;
    display: flex;
    justify-content: space-evenly;
    align-items: flex-start;
}

.xmas-ornament-string {
    width: 2px;
    height: 80px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
    margin: 0 auto;
}

.xmas-ornament-icon {
    width: 45px;
    height: 45px;
    margin: 0 auto;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

@keyframes xmas-swing {
    0%,
    100% {
        transform: rotate(-4deg);
    }
    50% {
        transform: rotate(4deg);
    }
}

/* Main Container - Zoom in animation */
.xmas-container {
    text-align: center;
    z-index: 3;
    margin-top: 120px;
    padding: 40px 20px;
    max-width: 800px;
    position: relative;
    opacity: 0;
    transform: scale(0.3);
    transition: opacity 0.8s ease 0.8s, 
                transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.8s;
}

/* When page is shown, container zooms in */
.christmas-page.show .xmas-container {
    opacity: 1;
    transform: scale(1);
}

/* When page is hiding, container zooms out - starts after ornaments */
.christmas-page.hiding .xmas-container {
    opacity: 0;
    transform: scale(0.3);
    transition: opacity 0.6s ease 1s, 
                transform 0.6s cubic-bezier(0.6, 0.04, 0.98, 0.335) 1s;
}

.xmas-title {
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: clamp(2.5rem, 8vw, 5rem);
    color: #ffffff;
    text-align: center;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    margin-bottom: 15px;
    letter-spacing: 0.15em;
    font-weight: 400;
}

.xmas-subtitle {
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: clamp(1.8rem, 6vw, 3.5rem);
    color: #d4af37;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.2em;
    font-weight: 600;
}

.xmas-divider {
    width: 280px;
    max-width: 80%;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(212, 175, 55, 0.5), transparent);
    margin: 40px auto;
    position: relative;
}

.xmas-divider::before,
.xmas-divider::after {
    content: '✦';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: #d4af37;
    font-size: 12px;
}

.xmas-divider::before {
    left: -5px;
}

.xmas-divider::after {
    right: -5px;
}

.xmas-logo {
    padding: 20px 45px;
    border-radius: 60px;
    display: inline-block;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

/* Add floating animation after zoom in completes */
.christmas-page.show .xmas-logo {
    animation: xmas-floatLogo 3s ease-in-out 1.6s infinite;
}

.xmas-logo-text {
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: clamp(0.8rem, 2vw, 1.5rem);
    font-weight: bold;
    color: #ffffff;
    letter-spacing: 0.05em;
}

@keyframes xmas-floatLogo {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}
.xmas-scroll-hint {
    position: fixed;
    bottom: 35px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    z-index: 10;
    letter-spacing: 0.05em;
    opacity: 0;
    transition: opacity 0.5s ease 1.5s;
}

/* Default desktop */
.xmas-scroll-hint::after {
    content: "Scroll to return ↓";
}

/* Mobile */
@media (max-width: 768px) {
    .xmas-scroll-hint::after {
        content: "Scroll to return ↑";
        font-size: 1rem;
    }
}


/* Show scroll hint after animations complete */
.christmas-page.show .xmas-scroll-hint {
    opacity: 1;
    animation: xmas-bounce 2s infinite 1.5s;
}

@keyframes xmas-bounce {
    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-8px);
    }
}

.xmas-page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #8b1538 0%, #5a0f29 100%);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Snowflakes */
.xmas-snowflake {
    position: fixed;
    top: -20px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    animation: xmas-fall linear infinite;
    z-index: 1;
    pointer-events: none;
}

/* Responsive */
@media (max-width: 768px) {
    .christmas-button {
        bottom: 80px;
        right: 20px;
        font-size: 14px;
    }
    
    .christmas-button::before {
        font-size: 18px;
    }

    .xmas-ornament-container {
        height: 140px;
    }

    .xmas-ornament-string {
        height: 60px;
    }

    .xmas-ornament-icon {
        width: 32px;
        height: 32px;
    }

    .xmas-container {
        text-align: center;
        z-index: 3;
        margin-top: 50px;
        padding: 40px 20px;
        max-width: 800px;
        position: relative;
        opacity: 0;
        transform: scale(0.3);
        transition: opacity 0.8s ease 0.8s, 
                    transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.8s;
    }
    
    .xmas-logo {
        padding: 15px 35px;
        margin-top: 40px;
    }

    .xmas-logo-text {
        font-size: clamp(1rem, 1vw, 1rem);
        font-weight: bold;
        color: #ffffff;
        letter-spacing: 0.05em;
    }

    .xmas-divider {
        margin: 30px auto;
    }
}