/**
 * ============================================================================
 * PAGE LOADER COMPONENT
 * Modern animated brand loading screen with elegant dot animation
 * ============================================================================
 */

/* Loader container */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg, 
        #FFFFFF 0%, 
        var(--color-primary-50) 50%, 
        var(--color-primary-100) 100%
    );
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loader);
    opacity: 1;
    visibility: visible;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                visibility 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* Animated brand text */
.loader-brand {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-3xl);
    position: relative;
    letter-spacing: 0.05em;
}

.loader-brand .word {
    display: inline-block;
    margin: 0 clamp(0.5rem, 2vw, 0.75rem);
}

.loader-brand .letter {
    display: inline-block;
    opacity: 0;
    transform: translateY(40px) scale(0.8);
    animation: letterAppear 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Gradient text for "Priya" */
.loader-brand .priya .letter {
    background: linear-gradient(
        135deg, 
        var(--color-primary-600) 0%, 
        var(--color-primary-500) 50%,
        var(--color-primary-400) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Gradient text for "Glam" */
.loader-brand .glam .letter {
    background: linear-gradient(
        135deg, 
        var(--color-primary-700) 0%, 
        var(--color-primary-600) 50%,
        var(--color-primary-500) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Letter appear animation */
@keyframes letterAppear {
    0% {
        opacity: 0;
        transform: translateY(40px) scale(0.8);
    }
    60% {
        transform: translateY(-5px) scale(1.05);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Staggered animation delays for smooth cascade */
.letter:nth-child(1) { animation-delay: 0.1s; }
.letter:nth-child(2) { animation-delay: 0.15s; }
.letter:nth-child(3) { animation-delay: 0.2s; }
.letter:nth-child(4) { animation-delay: 0.25s; }
.letter:nth-child(5) { animation-delay: 0.3s; }
.letter:nth-child(6) { animation-delay: 0.4s; }
.letter:nth-child(7) { animation-delay: 0.45s; }
.letter:nth-child(8) { animation-delay: 0.5s; }

/* Dots animation container */
.loader-spinner-container {
    position: relative;
    width: 100px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

/* Individual animated dots */
.loader-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: linear-gradient(
        135deg, 
        var(--color-primary-500), 
        var(--color-primary-600)
    );
    box-shadow: 0 4px 12px rgba(219, 39, 119, 0.3);
    animation: dotBounce 1.4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.loader-dot:nth-child(1) {
    animation-delay: 0s;
}

.loader-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.loader-dot:nth-child(3) {
    animation-delay: 0.4s;
}

/* Dot bounce animation */
@keyframes dotBounce {
    0%, 80%, 100% {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
    40% {
        transform: scale(1.3) translateY(-20px);
        opacity: 0.8;
    }
}

/* Alternative: Wave style animation */
.loader-spinner-container.wave-style .loader-dot {
    animation: dotWave 1.4s ease-in-out infinite;
}

@keyframes dotWave {
    0%, 60%, 100% {
        transform: translateY(0) scale(1);
    }
    30% {
        transform: translateY(-18px) scale(1.2);
    }
}

/* Alternative: Pulse style animation */
.loader-spinner-container.pulse-style .loader-dot {
    animation: dotPulse 1.4s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.3);
        opacity: 1;
    }
}

/* Loading text */
.loader-text {
    margin-top: var(--spacing-2xl);
    font-size: 0.875rem;
    color: var(--color-primary-700);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    animation-delay: 0.8s;
}

/* Fade in up animation */
@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile optimizations */
@media (max-width: 640px) {
    .loader-spinner-container {
        width: 80px;
        height: 35px;
        gap: 10px;
    }
    
    .loader-dot {
        width: 12px;
        height: 12px;
    }
    
    @keyframes dotBounce {
        0%, 80%, 100% {
            transform: scale(1) translateY(0);
            opacity: 1;
        }
        40% {
            transform: scale(1.3) translateY(-15px);
            opacity: 0.8;
        }
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .loader-brand .letter {
        animation: letterAppearSimple 0.6s ease forwards;
    }
    
    .loader-dot {
        animation: dotSimple 1.6s ease-in-out infinite;
    }
    
    @keyframes dotSimple {
        0%, 100% {
            opacity: 0.4;
        }
        50% {
            opacity: 1;
        }
    }
}

@keyframes letterAppearSimple {
    to {
        opacity: 1;
        transform: none;
    }
}

/* Hidden spinner fallback (no JavaScript needed) */
.loader-spinner {
    display: none;
}