/* Modern Loading Animasyonu - Yeni Tasarım */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0B2545 20%, #3f51b5 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.loading-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    animation: backgroundFloat 8s ease-in-out infinite;
}

.loading-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
    color: white;
    position: relative;
    z-index: 2;
}

/* Modern Spinner Tasarımı */
.loading-spinner {
    width: 100px;
    height: 100px;
    position: relative;
    margin: 0 auto 30px;
}

.loading-spinner::before,
.loading-spinner::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    animation: modernSpin 2s linear infinite;
}

.loading-spinner::before {
    width: 100px;
    height: 100px;
    border: 3px solid transparent;
    border-top: 3px solid #ffffff;
    border-right: 3px solid #ffffff;
}

.loading-spinner::after {
    width: 80px;
    height: 80px;
    top: 10px;
    left: 10px;
    border: 3px solid transparent;
    border-bottom: 3px solid rgba(255, 255, 255, 0.6);
    border-left: 3px solid rgba(255, 255, 255, 0.6);
    animation-direction: reverse;
    animation-duration: 1.5s;
}

/* Logo ve Marka */
.loading-logo {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(45deg, #ffffff, #e3f2fd, #ffffff);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
    letter-spacing: 2px;
}

.loading-text {
    font-size: 1.3rem;
    margin-bottom: 15px;
    opacity: 0.95;
    font-weight: 500;
    animation: textPulse 2s ease-in-out infinite;
}

.loading-subtext {
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 25px;
    animation: fadeInOut 3s ease-in-out infinite;
}

/* Modern Progress Bar */
.loading-progress {
    width: 250px;
    height: 6px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.loading-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0.8) 0%, 
        rgba(255, 255, 255, 1) 50%, 
        rgba(255, 255, 255, 0.8) 100%);
    border-radius: 10px;
    animation: modernProgress 2.5s ease-in-out infinite;
    transform: translateX(-100%);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

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

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    animation: floatParticle 6s linear infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 1s; }
.particle:nth-child(3) { left: 30%; animation-delay: 2s; }
.particle:nth-child(4) { left: 40%; animation-delay: 3s; }
.particle:nth-child(5) { left: 50%; animation-delay: 4s; }
.particle:nth-child(6) { left: 60%; animation-delay: 5s; }
.particle:nth-child(7) { left: 70%; animation-delay: 0.5s; }
.particle:nth-child(8) { left: 80%; animation-delay: 1.5s; }
.particle:nth-child(9) { left: 90%; animation-delay: 2.5s; }

/* Animasyonlar */
@keyframes modernSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes textPulse {
    0%, 100% { transform: scale(1); opacity: 0.95; }
    50% { transform: scale(1.02); opacity: 1; }
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

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

@keyframes backgroundFloat {
    0%, 100% { transform: scale(1) rotate(0deg); opacity: 1; }
    50% { transform: scale(1.1) rotate(180deg); opacity: 0.8; }
}

@keyframes floatParticle {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
        transform: translateY(90vh) scale(1);
    }
    90% {
        opacity: 1;
        transform: translateY(10vh) scale(1);
    }
    100% {
        transform: translateY(-10vh) scale(0);
        opacity: 0;
    }
}

/* Mobil Uyumluluk */
@media (max-width: 768px) {
    .loading-spinner {
        width: 80px;
        height: 80px;
    }
    
    .loading-spinner::before {
        width: 80px;
        height: 80px;
    }
    
    .loading-spinner::after {
        width: 60px;
        height: 60px;
        top: 10px;
        left: 10px;
    }
    
    .loading-logo {
        font-size: 2.2rem;
        letter-spacing: 1px;
    }
    
    .loading-text {
        font-size: 1.1rem;
    }
    
    .loading-subtext {
        font-size: 0.9rem;
    }
    
    .loading-progress {
        width: 200px;
        height: 5px;
    }
}

@media (max-width: 480px) {
    .loading-logo {
        font-size: 1.8rem;
    }
    
    .loading-text {
        font-size: 1rem;
    }
    
    .loading-subtext {
        font-size: 0.8rem;
    }
    
    .loading-progress {
        width: 180px;
    }
}

/* Dots Animasyonu */
.loading-dots {
    display: inline-block;
}

.loading-dots::after {
    content: '';
    animation: dots 1.8s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Hover Efektleri (Etkileşim için) */
.loading-content:hover .loading-spinner {
    animation-duration: 0.5s;
}

.loading-content:hover .loading-logo {
    animation-duration: 1s;
}

/* Dark Mode Desteği */
@media (prefers-color-scheme: dark) {
    .loading-overlay {
        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .loading-spinner::before,
    .loading-spinner::after,
    .loading-progress-bar,
    .particle {
        animation-duration: 4s;
    }
    
    .loading-logo,
    .loading-text,
    .loading-subtext {
        animation: none;
    }
}

/* High Performance Mode */
.loading-overlay.performance-mode * {
    will-change: transform, opacity;
    transform: translateZ(0);
}