/*******************************************************************************
* File: intro-splash.css
* Created: October 30, 2025
* Author: CSS Refactoring
* Purpose: Intro splash screen with orbiting planets (index.cfm only)
* Project: PASC Region J Conference 2026 Website
*******************************************************************************/

/* Prevent horizontal scroll during intro */
body { overflow-x: hidden; }

/* Intro Splash Screen Styles */
#intro-splash {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.8s ease-in-out;
    overflow: hidden;
    opacity: 0; /* Hidden until video loads */
    background: linear-gradient(135deg, #1a0033 0%, #2d1b4e 50%, #1a0033 100%); /* Loading background */
}

#intro-splash.loaded {
    opacity: 1; /* Show when video is ready */
}

/* Intro Video Backgrounds */
.intro-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.intro-video-desktop {
    display: block;
}

.intro-video-mobile {
    display: none;
}

#intro-splash.fade-out {
    opacity: 0;
    pointer-events: none;
}

/* Stars */
.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.star {
    position: absolute;
    background: white;
    border-radius: 50%;
    animation: twinkle 3s infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* Planet Container and Orbits */
.planet-container {
    position: relative;
    width: 640px;
    height: 640px;
    margin-bottom: 40px;
}

.orbit {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.orbit-1 {
    width: 260px;
    height: 260px;
    animation: rotate 8s linear infinite;
    animation-delay: 0s;
}

.orbit-2 {
    width: 380px;
    height: 380px;
    animation: rotate 12s linear infinite reverse;
    animation-delay: -9s;
}

.orbit-3 {
    width: 500px;
    height: 500px;
    animation: rotate 16s linear infinite;
    animation-delay: -4s;
}

.orbit-4 {
    width: 620px;
    height: 620px;
    animation: rotate 20s linear infinite reverse;
    animation-delay: -15s;
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Planets */
.planet {
    animation: introPulse 1s ease-in-out infinite;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.planet img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.4));
}

.planet-1 {
    width: 35px;
    height: 35px;
}

.planet-2 {
    width: 55px;
    height: 55px;
}

.planet-3 {
    width: 45px;
    height: 45px;
}

.planet-4 {
    width: 65px;
    height: 65px;
}

/* Center Logo */
.center-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background-image: url('/assets/img/logo.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(255, 152, 0, 0.4);
    animation: pulse 2s ease-in-out infinite, rotate360 20s linear infinite, introPulse 2s ease-in-out infinite;
}


@keyframes rotate360 {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 10px rgba(255, 152, 0, 0.4);
        filter: brightness(1);
    }
    50% {
        box-shadow: 0 0 20px rgba(255, 152, 0, 0.5);
        filter: brightness(1.15);
    }
}

/* Intro Text */
.intro-text {
    text-align: center;
    color: white;
    z-index: 10;
}

.intro-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.5s forwards;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.intro-subtitle {
    font-size: 1.5rem;
    color: #FFB300;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1.5s forwards;
    text-shadow: 0 0 10px rgba(255, 179, 0, 0.6);
}

.intro-date {
    font-size: 1.2rem;
    color: #00d4ff;
    margin-top: 10px;
    opacity: 0;
    animation: fadeInUp 1s ease-out 2s forwards;
}

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

/* Skip Button */
.skip-btn {
    position: absolute;
    bottom: 40px;
    right: 40px;
    padding: 12px 30px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 1rem;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
    opacity: 0;
    animation: fadeIn 0.5s ease-out 3s forwards;
}

.skip-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.6);
    transform: scale(1.05);
}

@keyframes fadeIn {
    to { opacity: 1; }
}

/* Main Site Visibility */
#main-site {
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
}

#main-site.visible {
    opacity: 1;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    /* Show mobile video, hide desktop video */
    .intro-video-desktop {
        display: none;
    }

    .intro-video-mobile {
        display: block;
    }

    .planet-container {
        width: 420px;
        height: 420px;
        margin-bottom: 30px;
    }

    .orbit-1 { width: 170px; height: 170px; animation-delay: 0s; }
    .orbit-2 { width: 250px; height: 250px; animation-delay: -9s; }
    .orbit-3 { width: 330px; height: 330px; animation-delay: -4s; }
    .orbit-4 { width: 410px; height: 410px; animation-delay: -15s; }

    .center-logo {
        width: 100px;
        height: 100px;
    }

    .planet-1 { width: 28px; height: 28px; }
    .planet-2 { width: 44px; height: 44px; }
    .planet-3 { width: 36px; height: 36px; }
    .planet-4 { width: 52px; height: 52px; }

    .intro-title { font-size: 1.8rem; }
    .intro-subtitle { font-size: 1.1rem; }
    .intro-date { font-size: 1rem; }
    .skip-btn { bottom: 20px; right: 20px; padding: 10px 20px; font-size: 0.9rem; }
}

/* Intro Pulse Animation - uses modern scale property to avoid transform conflicts */
@keyframes introPulse {
    0%, 100% { scale: 1; }
    50% { scale: 1.1; }
}