/**
 * Schattenpfoten - Intro Animation
 */

/* Intro Container */
.intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background: #0a0a0a;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.intro-overlay.fade-out {
    animation: introFadeOut 1s ease-out forwards;
}

@keyframes introFadeOut {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

/* Pixel Pirates Splash */
.intro-splash {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 100;
    opacity: 0;
    transition: opacity 1s ease;
}

.intro-splash.visible {
    opacity: 1;
}

.intro-splash.fade-out {
    opacity: 0;
    transition: opacity 0.8s ease;
}

.intro-splash img {
    max-width: 200px;
    width: 60vw;
    height: auto;
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.3));
    animation: splashPulse 2s ease-in-out infinite;
}

.intro-splash-text {
    margin-top: 1.5rem;
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
    letter-spacing: 0.2em;
    animation: splashTextFade 1.5s ease-in-out infinite alternate;
}

@keyframes splashPulse {
    0%, 100% {
        transform: scale(1);
        filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.3));
    }
    50% {
        transform: scale(1.02);
        filter: drop-shadow(0 0 30px rgba(255, 255, 255, 0.5));
    }
}

@keyframes splashTextFade {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

/* Sound Hint */
.sound-hint {
    position: absolute;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(74, 144, 160, 0.3);
    border: 1px solid rgba(74, 144, 160, 0.5);
    border-radius: 2rem;
    color: white;
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 10;
    animation: hintPulse 2s ease-in-out infinite;
}

.sound-hint.visible {
    opacity: 1;
}

.sound-hint .sound-icon {
    font-size: 1.2rem;
}

/* Skip Button */
.intro-skip {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.7);
    border-radius: 2rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    z-index: 10;
}

.intro-skip:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Forest Background */
.intro-forest {
    position: absolute;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at bottom, #1a2a1a 0%, #0a0a0a 70%),
        linear-gradient(to bottom, #0a0a0a 0%, #0d1a0d 100%);
}

/* Trees Silhouette */
.intro-trees {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    opacity: 0;
    animation: treesAppear 2s ease-out 0.5s forwards;
}

.intro-trees svg {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    color-scheme: only light;
}

.intro-trees svg path {
    fill: #050805 !important;
}

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

/* Fog Layers */
.intro-fog {
    position: absolute;
    width: 200%;
    height: 100%;
    opacity: 0;
    animation: fogAppear 2s ease-out 1s forwards;
}

.intro-fog-1 {
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(100, 120, 100, 0.1) 20%,
        rgba(100, 120, 100, 0.15) 50%,
        rgba(100, 120, 100, 0.1) 80%,
        transparent 100%
    );
    animation: fogMove1 20s linear infinite, fogAppear 2s ease-out 1s forwards;
}

.intro-fog-2 {
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(80, 100, 80, 0.08) 30%,
        rgba(80, 100, 80, 0.12) 60%,
        transparent 100%
    );
    animation: fogMove2 25s linear infinite, fogAppear 2s ease-out 1.5s forwards;
}

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

@keyframes fogMove1 {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes fogMove2 {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

/* Animal Eyes Container */
.intro-eyes {
    position: absolute;
    width: 100%;
    height: 100%;
}

/* Single Eye Pair */
.eye-pair {
    position: absolute;
    display: flex;
    gap: 1rem;
    opacity: 0;
    filter: blur(2px);
    transform: scale(0.8);
}

.eye-pair.visible {
    animation: eyesGlow 0.8s ease-out forwards;
}

.eye-pair.transform-to-card {
    animation: eyesToCard 1s ease-in forwards;
}

@keyframes eyesGlow {
    0% {
        opacity: 0;
        filter: blur(4px);
        transform: scale(0.5);
    }
    50% {
        opacity: 1;
        filter: blur(0px);
        transform: scale(1.1);
    }
    100% {
        opacity: 1;
        filter: blur(1px);
        transform: scale(1);
    }
}

@keyframes eyesToCard {
    0% {
        opacity: 1;
        filter: blur(1px);
    }
    50% {
        opacity: 0.5;
        filter: blur(4px);
        transform: scale(0.5);
    }
    100% {
        opacity: 0;
        transform: scale(0) translateY(-100px);
    }
}

.eye {
    width: 12px;
    height: 8px;
    background: radial-gradient(ellipse, #fff 20%, currentColor 50%, transparent 70%);
    border-radius: 50%;
    box-shadow: 0 0 20px currentColor, 0 0 40px currentColor;
}

/* Eye Colors per Animal Type */
.eye-pair.wolf .eye {
    color: #4a90a0;
}

.eye-pair.puma .eye {
    color: #d69e2e;
}

.eye-pair.squirrel .eye {
    color: #c53030;
}

.eye-pair.bison .eye {
    color: #8b6914;
}

.eye-pair.cat .eye {
    color: #63b3ed;
}

/* Eye Positions */
.eye-pair:nth-child(1) { top: 25%; left: 15%; }
.eye-pair:nth-child(2) { top: 35%; right: 20%; }
.eye-pair:nth-child(3) { top: 55%; left: 25%; }
.eye-pair:nth-child(4) { top: 45%; right: 30%; }
.eye-pair:nth-child(5) { top: 65%; left: 10%; }

/* Flying Cards */
.intro-cards {
    position: absolute;
    width: 100%;
    height: 100%;
    perspective: 1000px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.intro-card {
    position: absolute;
    width: 120px;
    height: 168px;
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    border: 3px solid #4a5568;
    border-radius: 10px;
    opacity: 0;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.intro-card::after {
    content: 'SP';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.15);
}

.intro-card.fly-in {
    animation: cardFlyIn 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* Different starting positions for cards - näher am Zentrum */
.intro-card:nth-child(1) {
    --start-x: -80vw;
    --start-y: -30vh;
    --start-rotate: -30deg;
    animation-delay: 0s;
}

.intro-card:nth-child(2) {
    --start-x: 80vw;
    --start-y: -40vh;
    --start-rotate: 25deg;
    animation-delay: 0.12s;
}

.intro-card:nth-child(3) {
    --start-x: -70vw;
    --start-y: 40vh;
    --start-rotate: -40deg;
    animation-delay: 0.24s;
}

.intro-card:nth-child(4) {
    --start-x: 75vw;
    --start-y: 35vh;
    --start-rotate: 35deg;
    animation-delay: 0.36s;
}

.intro-card:nth-child(5) {
    --start-x: 0;
    --start-y: -50vh;
    --start-rotate: -15deg;
    animation-delay: 0.48s;
}

@keyframes cardFlyIn {
    0% {
        opacity: 0;
        transform: translate(calc(-50% + var(--start-x)), calc(-50% + var(--start-y))) rotate(var(--start-rotate)) scale(0.3);
    }
    40% {
        opacity: 1;
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) rotate(0deg) scale(1);
    }
}

/* Card Stack & Shuffle */
.intro-card-stack {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
}

.intro-card-stack.visible {
    opacity: 1;
}

.intro-card-stack .intro-card {
    position: absolute;
    opacity: 1;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

/* Gestapelte Karten leicht versetzt */
.intro-card-stack .intro-card:nth-child(1) { transform: translate(-50%, -50%) rotate(-2deg); }
.intro-card-stack .intro-card:nth-child(2) { transform: translate(calc(-50% + 3px), calc(-50% - 3px)) rotate(1deg); }
.intro-card-stack .intro-card:nth-child(3) { transform: translate(calc(-50% + 6px), calc(-50% - 6px)) rotate(-1deg); }
.intro-card-stack .intro-card:nth-child(4) { transform: translate(calc(-50% + 9px), calc(-50% - 9px)) rotate(2deg); }
.intro-card-stack .intro-card:nth-child(5) { transform: translate(calc(-50% + 12px), calc(-50% - 12px)) rotate(-1deg); }

/* Misch-Animation - kompakter, bleibt im Bildschirm */
.intro-card-stack.shuffle .intro-card:nth-child(1) {
    animation: shuffle1 0.5s ease-in-out forwards;
}
.intro-card-stack.shuffle .intro-card:nth-child(2) {
    animation: shuffle2 0.5s ease-in-out 0.08s forwards;
}
.intro-card-stack.shuffle .intro-card:nth-child(3) {
    animation: shuffle3 0.5s ease-in-out 0.16s forwards;
}
.intro-card-stack.shuffle .intro-card:nth-child(4) {
    animation: shuffle4 0.5s ease-in-out 0.24s forwards;
}
.intro-card-stack.shuffle .intro-card:nth-child(5) {
    animation: shuffle5 0.5s ease-in-out 0.32s forwards;
}

@keyframes shuffle1 {
    0%, 100% { transform: translate(-50%, -50%) rotate(-2deg); }
    50% { transform: translate(calc(-50% - 40px), calc(-50% - 15px)) rotate(-12deg); z-index: 5; }
}
@keyframes shuffle2 {
    0%, 100% { transform: translate(calc(-50% + 3px), calc(-50% - 3px)) rotate(1deg); }
    50% { transform: translate(calc(-50% + 45px), calc(-50% - 20px)) rotate(15deg); z-index: 4; }
}
@keyframes shuffle3 {
    0%, 100% { transform: translate(calc(-50% + 6px), calc(-50% - 6px)) rotate(-1deg); }
    50% { transform: translate(calc(-50% - 35px), calc(-50% + 25px)) rotate(-18deg); z-index: 3; }
}
@keyframes shuffle4 {
    0%, 100% { transform: translate(calc(-50% + 9px), calc(-50% - 9px)) rotate(2deg); }
    50% { transform: translate(calc(-50% + 40px), calc(-50% + 20px)) rotate(10deg); z-index: 2; }
}
@keyframes shuffle5 {
    0%, 100% { transform: translate(calc(-50% + 12px), calc(-50% - 12px)) rotate(-1deg); }
    50% { transform: translate(-50%, calc(-50% - 40px)) rotate(8deg); z-index: 1; }
}

/* Logo Reveal */
.intro-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    opacity: 0;
    z-index: 5;
}

.intro-logo.visible {
    animation: logoReveal 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes logoReveal {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.5);
        filter: blur(10px);
    }
    50% {
        opacity: 1;
        filter: blur(0);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
        filter: blur(0);
    }
}

.intro-logo-text {
    font-size: 3rem;
    font-weight: bold;
    color: #fff;
    text-shadow:
        0 0 20px rgba(74, 144, 160, 0.8),
        0 0 40px rgba(74, 144, 160, 0.5),
        0 0 60px rgba(74, 144, 160, 0.3);
    letter-spacing: 0.1em;
}

.intro-logo-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 0.5rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

/* Logo fade out */
.intro-logo.fade-out {
    animation: logoFadeOut 1s ease-out forwards;
}

@keyframes logoFadeOut {
    to {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
}

/* Logo below WW Logo */
.intro-logo.below-ww-logo {
    top: 65%;
    animation: logoAppearBelow 1s ease-out forwards;
}

@keyframes logoAppearBelow {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) translateY(0);
    }
}

.intro-logo.below-ww-logo .intro-logo-text {
    font-size: 2.5rem;
}

.intro-logo.below-ww-logo .intro-logo-subtitle {
    font-size: 1rem;
}

/* Woodwalker Logo Image */
.intro-ww-logo {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 6;
    opacity: 0;
    pointer-events: none;
}

.intro-ww-logo img {
    max-width: 280px;
    width: 80vw;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(74, 144, 160, 0.5));
}

.intro-ww-logo.visible {
    animation: wwLogoReveal 2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes wwLogoReveal {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.3) rotate(-10deg);
        filter: blur(20px);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1) rotate(2deg);
        filter: blur(0);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1) rotate(0deg);
        filter: blur(0);
    }
}

.intro-ww-logo.glow img {
    animation: wwLogoGlow 2s ease-in-out infinite;
}

@keyframes wwLogoGlow {
    0%, 100% {
        filter: drop-shadow(0 0 30px rgba(74, 144, 160, 0.5))
                drop-shadow(0 0 60px rgba(74, 144, 160, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 50px rgba(74, 144, 160, 0.8))
                drop-shadow(0 0 100px rgba(74, 144, 160, 0.5))
                drop-shadow(0 0 150px rgba(214, 158, 46, 0.3));
    }
}

/* Card Showcase */
.intro-card-showcase {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
    overflow: hidden;
}

.showcase-card {
    position: absolute;
    width: 140px;
    height: 196px;
    opacity: 0;
    transform: translate(-50%, -50%) rotate(var(--rotation, 0deg)) scale(0.5);
    transition: opacity 1s ease, transform 1s ease;
    z-index: 2;
}

.showcase-card.visible {
    opacity: 0.85;
    transform: translate(-50%, -50%) rotate(var(--rotation, 0deg)) scale(1);
}

.showcase-card.fade-out {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(var(--rotation, 0deg)) scale(0.8);
}

.showcase-card-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    border: 2px solid #4a5568;
    border-radius: 8px;
    overflow: hidden;
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(74, 144, 160, 0.3);
}

.showcase-card-inner img {
    width: 100%;
    height: 75%;
    object-fit: cover;
    border-bottom: 1px solid #4a5568;
}

.showcase-card-name {
    padding: 0.35rem;
    text-align: center;
    font-size: 0.8rem;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Particles/Sparkles */
.intro-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #fff;
    border-radius: 50%;
    opacity: 0;
}

.particle.active {
    animation: particleFloat 2s ease-out forwards;
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(0) scale(0);
    }
    20% {
        opacity: 1;
        transform: translateY(-20px) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-100px) scale(0.5);
    }
}

/* ========================================
   IDLE MODE - Endless Animation
   ======================================== */

/* Prominent Skip Button in Idle Mode */
.intro-skip.prominent {
    background: linear-gradient(135deg, #4a90a0 0%, #2d6a7a 100%);
    border: 2px solid #63b3c8;
    color: white;
    font-size: 1.25rem;
    padding: 1rem 3rem;
    animation: buttonGlow 2s ease-in-out infinite;
    box-shadow: 0 0 20px rgba(74, 144, 160, 0.5);
}

.intro-skip.prominent:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(74, 144, 160, 0.8);
}

@keyframes buttonGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(74, 144, 160, 0.5);
    }
    50% {
        box-shadow: 0 0 40px rgba(74, 144, 160, 0.8), 0 0 60px rgba(74, 144, 160, 0.4);
    }
}

/* Logo Idle Pulse */
.intro-logo.idle-pulse .intro-logo-text {
    animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% {
        text-shadow:
            0 0 20px rgba(74, 144, 160, 0.8),
            0 0 40px rgba(74, 144, 160, 0.5),
            0 0 60px rgba(74, 144, 160, 0.3);
        transform: scale(1);
    }
    50% {
        text-shadow:
            0 0 30px rgba(74, 144, 160, 1),
            0 0 60px rgba(74, 144, 160, 0.7),
            0 0 90px rgba(74, 144, 160, 0.5);
        transform: scale(1.02);
    }
}

/* Hint Text */
.intro-hint {
    position: absolute;
    bottom: 6rem;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    opacity: 0;
    transition: opacity 0.5s ease;
    animation: hintPulse 2s ease-in-out infinite;
}

.intro-hint.visible {
    opacity: 1;
}

@keyframes hintPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* Floating Cards Container */
.intro-floating-cards {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

/* Individual Floating Card */
.floating-card {
    position: absolute;
    width: 60px;
    height: 84px;
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    border: 2px solid #4a5568;
    border-radius: 6px;
    opacity: 0;
    bottom: -100px;
    animation: floatUp linear forwards;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.floating-card::after {
    content: 'SP';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1rem;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.1);
}

@keyframes floatUp {
    0% {
        opacity: 0;
        transform: translateY(0) rotate(0deg) scale(0.8);
    }
    10% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.4;
    }
    90% {
        opacity: 0.2;
    }
    100% {
        opacity: 0;
        transform: translateY(-120vh) rotate(360deg) scale(0.6);
    }
}

/* Responsive */
@media (max-width: 576px) {
    .intro-logo-text {
        font-size: 2.5rem;
    }

    .intro-logo-subtitle {
        font-size: 0.875rem;
    }

    .intro-logo.below-ww-logo .intro-logo-text {
        font-size: 1.75rem;
    }

    .intro-logo.below-ww-logo .intro-logo-subtitle {
        font-size: 0.75rem;
    }

    .intro-ww-logo img {
        max-width: 200px;
    }

    .showcase-card {
        width: 100px;
        height: 140px;
    }

    .showcase-card-name {
        font-size: 0.55rem;
    }

    .intro-card {
        width: 100px;
        height: 140px;
    }

    .intro-card::after {
        font-size: 1.5rem;
    }

    .eye {
        width: 8px;
        height: 5px;
    }

    .eye-pair {
        gap: 0.5rem;
    }

    .intro-skip.prominent {
        font-size: 1rem;
        padding: 0.75rem 2rem;
    }

    .intro-hint {
        font-size: 0.75rem;
        bottom: 5rem;
    }

    .floating-card {
        width: 40px;
        height: 56px;
    }
}