/* 🚀 Professional Loader System - آراوا */
/* Compatible with light/dark themes */

:root {
    --loader-primary: #3f704d;
    --loader-primary-light: #4CAF50;
    --loader-primary-dark: #2E7D32;
    --loader-accent: #66BB6A;
    --loader-bg: #ffffff;
    --loader-text: #2E7D32;
    --loader-shadow: rgba(63, 112, 77, 0.3);
    --loader-particle: #81C784;
    --loader-success: #4CAF50;
    --loader-glow: rgba(76, 175, 80, 0.4);
}

[data-theme="dark"] {
    --loader-primary: #66BB6A;
    --loader-primary-light: #81C784;
    --loader-primary-dark: #4CAF50;
    --loader-accent: #A5D6A7;
    --loader-bg: #1a1a1a;
    --loader-text: #E8F5E8;
    --loader-shadow: rgba(102, 187, 106, 0.4);
    --loader-particle: #C8E6C9;
    --loader-success: #81C784;
    --loader-glow: rgba(129, 199, 132, 0.5);
}

/* ===== FULL PAGE LOADER ===== */
.professional-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--loader-bg);
    background-image: 
        radial-gradient(circle at 25% 25%, var(--loader-shadow) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, var(--loader-shadow) 0%, transparent 50%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

.professional-loader::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        45deg,
        var(--loader-primary) 0%,
        var(--loader-primary-light) 25%,
        var(--loader-accent) 50%,
        var(--loader-primary-light) 75%,
        var(--loader-primary) 100%
    );
    opacity: 0.05;
    animation: gradientShift 3s ease-in-out infinite;
}

.professional-loader.fade-out {
    opacity: 0;
    visibility: hidden;
    transform: scale(1.1);
}

/* ===== LOADER CONTAINER ===== */
.loader-container {
    position: relative;
    text-align: center;
    z-index: 2;
}

/* ===== MAIN LOADER ANIMATION ===== */
.advanced-loader {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 40px;
}

/* Outer Ring */
.loader-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-radius: 50%;
    border-top-color: var(--loader-primary);
    border-right-color: var(--loader-primary-light);
    animation: ringRotate 2s linear infinite;
}

/* Inner Ring */
.loader-ring-inner {
    position: absolute;
    top: 15px;
    left: 15px;
    width: calc(100% - 30px);
    height: calc(100% - 30px);
    border: 2px solid transparent;
    border-radius: 50%;
    border-bottom-color: var(--loader-accent);
    border-left-color: var(--loader-primary-dark);
    animation: ringRotate 1.5s linear infinite reverse;
}

/* Center Logo Container */
.loader-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: var(--loader-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px var(--loader-shadow);
    animation: centerPulse 2s ease-in-out infinite;
}

.loader-logo-icon {
    font-size: 24px;
    font-weight: 900;
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    animation: logoFloat 3s ease-in-out infinite;
}

/* ===== PROGRESS BAR ===== */
.loader-progress {
    width: 200px;
    height: 4px;
    background: rgba(63, 112, 77, 0.2);
    border-radius: 2px;
    margin: 30px auto 20px;
    overflow: hidden;
    position: relative;
}

[data-theme="dark"] .loader-progress {
    background: rgba(102, 187, 106, 0.2);
}

.loader-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--loader-primary), var(--loader-primary-light), var(--loader-primary));
    border-radius: 2px;
    animation: progressFill 2.5s ease-in-out infinite;
    box-shadow: 0 0 10px var(--loader-glow);
}

/* ===== TEXT STYLES ===== */
.loader-brand {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--loader-text);
    margin-bottom: 15px;
    font-family: 'Vazirmatn', sans-serif;
    background: linear-gradient(135deg, var(--loader-primary), var(--loader-primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textShine 3s ease-in-out infinite;
    position: relative;
}

.loader-subtitle {
    font-size: 1rem;
    color: var(--loader-text);
    opacity: 0.8;
    font-family: 'Vazirmatn', sans-serif;
    font-weight: 500;
    animation: textFade 2s ease-in-out infinite;
    margin-bottom: 10px;
}

.loader-status {
    font-size: 0.9rem;
    color: var(--loader-primary);
    font-weight: 600;
    font-family: 'Vazirmatn', sans-serif;
    animation: statusBlink 1.5s ease-in-out infinite;
    min-height: 20px;
}

/* ===== PARTICLE EFFECTS ===== */
.loader-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--loader-particle);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 4s linear infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 0.5s; }
.particle:nth-child(3) { left: 30%; animation-delay: 1s; }
.particle:nth-child(4) { left: 40%; animation-delay: 1.5s; }
.particle:nth-child(5) { left: 50%; animation-delay: 2s; }
.particle:nth-child(6) { left: 60%; animation-delay: 2.5s; }
.particle:nth-child(7) { left: 70%; animation-delay: 3s; }
.particle:nth-child(8) { left: 80%; animation-delay: 3.5s; }
.particle:nth-child(9) { left: 90%; animation-delay: 4s; }

/* ===== ANIMATIONS ===== */
@keyframes ringRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes centerPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.1); }
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-3px); }
}

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

@keyframes textShine {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; transform: scale(1.02); }
}

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

@keyframes statusBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

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

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

/* ===== MINI LOADERS ===== */
.mini-loader {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--loader-primary);
    border-radius: 50%;
    border-top-color: transparent;
    animation: ringRotate 0.8s linear infinite;
}

.mini-loader-dots {
    display: inline-flex;
    gap: 4px;
}

.mini-loader-dots .dot {
    width: 6px;
    height: 6px;
    background: var(--loader-primary);
    border-radius: 50%;
    animation: dotBounce 1.4s ease-in-out infinite both;
}

.mini-loader-dots .dot:nth-child(1) { animation-delay: -0.32s; }
.mini-loader-dots .dot:nth-child(2) { animation-delay: -0.16s; }
.mini-loader-dots .dot:nth-child(3) { animation-delay: 0s; }

@keyframes dotBounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* ===== SUCCESS STATE ===== */
.loader-success .loader-center {
    background: linear-gradient(135deg, var(--loader-success), var(--loader-primary-light));
    animation: successPulse 0.3s ease-in-out 3;
}

@keyframes successPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.2); }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .advanced-loader {
        width: 100px;
        height: 100px;
    }
    
    .loader-center {
        width: 50px;
        height: 50px;
    }
    
    .loader-logo-icon {
        font-size: 20px;
    }
    
    .loader-brand {
        font-size: 1.8rem;
    }
    
    .loader-progress {
        width: 150px;
    }
}

@media (max-width: 480px) {
    .advanced-loader {
        width: 80px;
        height: 80px;
    }
    
    .loader-center {
        width: 40px;
        height: 40px;
    }
    
    .loader-logo-icon {
        font-size: 16px;
    }
    
    .loader-brand {
        font-size: 1.5rem;
    }
    
    .loader-subtitle {
        font-size: 0.9rem;
    }
    
    .loader-status {
        font-size: 0.8rem;
    }
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.professional-loader * {
    will-change: transform, opacity;
}

.professional-loader *,
.professional-loader *:before,
.professional-loader *:after {
    backface-visibility: hidden;
    perspective: 1000px;
}

/* ===== UTILITY CLASSES ===== */
.hide-loader {
    display: none !important;
}

.show-loader {
    display: flex !important;
}

/* Loading text with gradient */
.gradient-text {
    background: linear-gradient(135deg, var(--loader-primary), var(--loader-primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glow effect for special occasions */
.glow-effect {
    filter: drop-shadow(0 0 10px var(--loader-glow));
}

/* ===== PRELOADER FOR CRITICAL RESOURCES ===== */
.critical-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--loader-primary);
    transform: translateX(-100%);
    animation: criticalLoad 2s ease-in-out infinite;
    z-index: 10000;
}

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