/**
 * Loading Screen Styles
 * The Heart of Gold
 */

.loading-screen {
    position: fixed;
    inset: 0;
    z-index: var(--z-loading);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Background Pattern */
.loading-bg-pattern {
    position: absolute;
    inset: -200px;
    background-image: url('../assets/bg.png');
    background-size: 150px 150px;
    background-repeat: repeat;
    transform: rotate(-15deg) scale(1.5);
    animation: patternDrift 12s linear infinite;
}

@keyframes patternDrift {
    from { background-position: 0 0; }
    to { background-position: 300px 300px; }
}

/* Audio Toggles */
.loading-audio-toggles {
    position: absolute;
    top: var(--space-xl);
    left: var(--space-xl);
    z-index: 10;
    display: flex;
    gap: var(--space-md);
    padding-top: var(--safe-top);
    padding-left: var(--safe-left);
}

.audio-toggle {
    width: 48px;
    height: 48px;
    padding: var(--space-sm);
    background: rgba(0, 0, 0, 0.4);
    border-radius: var(--radius-md);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: 
        background var(--transition-normal),
        border-color var(--transition-normal),
        transform var(--transition-bounce);
    display: flex;
    align-items: center;
    justify-content: center;
}

.audio-toggle:hover {
    background: rgba(0, 0, 0, 0.6);
    border-color: rgba(255, 255, 255, 0.4);
    transform: scale(1.05);
}

.audio-toggle:active {
    transform: scale(0.95);
}

.audio-toggle.active {
    border-color: var(--color-pink-main);
    background: rgba(196, 30, 92, 0.3);
}

.toggle-icon {
    width: 28px;
    height: 28px;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

/* Loading Tip */
.loading-tip-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 5;
    width: 90%;
    max-width: 600px;
    text-align: center;
    padding: var(--space-md);
}

.loading-tip {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(196, 30, 92, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-xl);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.tip-text {
    font-family: var(--font-pixel-alt);
    font-size: clamp(0.8rem, 2.5vw, 1.1rem);
    color: var(--color-text-primary);
    line-height: 1.6;
    letter-spacing: 0.02em;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Loading Corner */
.loading-corner {
    position: absolute;
    bottom: var(--space-2xl);
    right: var(--space-2xl);
    z-index: 2;
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    padding-bottom: var(--safe-bottom);
    padding-right: var(--safe-right);
}

.loading-text {
    font-family: var(--font-title);
    font-size: clamp(1.5rem, 5vw, 4rem);
    color: var(--color-text-primary);
    display: flex;
    letter-spacing: 0.05em;
    text-shadow: 
        3px 3px 0 var(--color-pink-dark),
        6px 6px 0 rgba(0, 0, 0, 0.4);
}

.loading-letter {
    display: inline-block;
    will-change: transform;
    transform-origin: center bottom;
}

.loading-letter.space {
    width: 0.4em;
}

.loading-gif {
    width: clamp(100px, 20vw, 220px);
    height: auto;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

/* Progress Bar */
.loading-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.1);
    z-index: 3;
}

.loading-progress-bar {
    height: 100%;
    width: 0;
    background: linear-gradient(
        90deg,
        var(--color-pink-dark),
        var(--color-pink-main),
        var(--color-pink-light)
    );
    transition: width 300ms ease-out;
    will-change: width;
}

/**
 * Transition Styles
 */

.transition-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-transition);
    pointer-events: none;
    display: flex;
    flex-direction: column;
}

.transition-slice {
    flex: 1;
    background-color: var(--color-black);
    position: relative;
    will-change: transform;
}

.transition-slice::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 0 100% 80px;
    border-color: transparent transparent var(--color-black) transparent;
    transform: translateX(100%);
}

.transition-slice:nth-child(odd)::after {
    border-width: 100% 0 0 80px;
    border-color: transparent transparent transparent var(--color-black);
    transform: translateX(100%) scaleX(-1);
    right: auto;
    left: 0;
    transform: translateX(-100%);
}

@media (max-width: 768px) {
    .transition-slice::after {
        border-width: 0 0 100% 40px;
    }
    
    .transition-slice:nth-child(odd)::after {
        border-width: 100% 0 0 40px;
    }
}