/* ==========================================
   FUTURISTIC CRYPTO MINING PRELOADER
   Ultra-Advanced Design with Particles & 3D Effects
   ========================================== */

.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, #0a0a1f 0%, #000000 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    z-index: 99999;
    opacity: 1;
    visibility: visible;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.preloader.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* Dark Theme Variables - Алый, Светлый, Графитовый */
body.dark .preloader,
body.dark-theme .preloader {
    --neon-red: #ff3b3b;
    --neon-crimson: #dc143c;
    --neon-scarlet: #ff2400;
    --color-light: #f0f0f0;
    --color-graphite: #3a3a3a;
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --text-primary: #ffffff;
    --text-glow: rgba(255, 59, 59, 0.8);
}

/* ==========================================
   ANIMATED BACKGROUND GRID
   ========================================== */
.preloader::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 59, 59, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 59, 59, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    opacity: 0.3;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

/* ==========================================
   SCANNING BEAM EFFECT
   ========================================== */
.preloader::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 200%;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(255, 59, 59, 0.1) 48%,
        rgba(255, 59, 59, 0.3) 50%,
        rgba(255, 59, 59, 0.1) 52%,
        transparent 100%
    );
    animation: scanBeam 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes scanBeam {
    0%, 100% { transform: translateY(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(50%); opacity: 0; }
}

/* ==========================================
   MAIN CONTENT CONTAINER
   ========================================== */
.preloader__content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 48px;
    z-index: 2;
}

/* ==========================================
   CENTRAL 3D GPU CHIP SPINNER
   ========================================== */
.preloader__spinner {
    position: relative;
    width: 160px;
    height: 160px;
    transform-style: preserve-3d;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotateX(0deg); }
    50% { transform: translateY(-20px) rotateX(10deg); }
}

/* Main GPU Chip */
.preloader__circle {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120px;
    height: 120px;
    margin: -60px 0 0 -60px;
    background: linear-gradient(135deg, #2a2a2a 0%, #0a0a0a 100%);
    border: 2px solid var(--neon-red);
    border-radius: 12px;
    box-shadow:
        0 0 20px rgba(255, 59, 59, 0.5),
        0 0 40px rgba(255, 59, 59, 0.3),
        0 0 60px rgba(255, 59, 59, 0.2),
        inset 0 0 20px rgba(255, 59, 59, 0.1);
    animation: chipRotate 4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    overflow: hidden;
}

.preloader__circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80%;
    height: 80%;
    transform: translate(-50%, -50%);
    background:
        linear-gradient(45deg, transparent 30%, rgba(255, 59, 59, 0.1) 50%, transparent 70%),
        repeating-linear-gradient(90deg, #ff3b3b 0px, transparent 2px, transparent 8px, #ff3b3b 10px),
        repeating-linear-gradient(0deg, #ff3b3b 0px, transparent 2px, transparent 8px, #ff3b3b 10px);
    opacity: 0.3;
    animation: circuitPulse 2s linear infinite;
}

.preloader__circle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    transform: translate(-50%, -50%);
    background-image: url('/public/uploads/logos/logo_orig.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    animation: logoSpin 3s linear infinite;
    filter: drop-shadow(0 0 10px rgba(255, 59, 59, 0.6));
}

@keyframes logoSpin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes chipRotate {
    0% { transform: rotate(0deg) scale(1); border-color: var(--neon-red); }
    25% { border-color: var(--neon-crimson); }
    50% { transform: rotate(180deg) scale(1.05); border-color: var(--neon-scarlet); }
    75% { border-color: var(--neon-crimson); }
    100% { transform: rotate(360deg) scale(1); border-color: var(--neon-red); }
}

@keyframes circuitPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

/* Orbital Rings */
.preloader__pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 140px;
    height: 140px;
    margin: -70px 0 0 -70px;
    border: 2px solid transparent;
    border-top-color: var(--neon-red);
    border-right-color: var(--neon-scarlet);
    border-radius: 50%;
    animation: orbitSpin 3s linear infinite;
    box-shadow: 0 0 20px rgba(255, 59, 59, 0.5);
}

@keyframes orbitSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Particles Around GPU */
.preloader__spinner::before,
.preloader__spinner::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--neon-red);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--neon-red);
}

.preloader__spinner::before {
    top: 0;
    left: 50%;
    animation: particle1 2s ease-in-out infinite;
}

.preloader__spinner::after {
    bottom: 0;
    right: 50%;
    animation: particle2 2s ease-in-out infinite;
}

@keyframes particle1 {
    0%, 100% { transform: translate(-50%, 0) scale(1); opacity: 1; }
    50% { transform: translate(-50%, -30px) scale(1.5); opacity: 0.5; }
}

@keyframes particle2 {
    0%, 100% { transform: translate(50%, 0) scale(1); opacity: 1; }
    50% { transform: translate(50%, 30px) scale(1.5); opacity: 0.5; }
}

/* ==========================================
   GLITCH TEXT WITH HOLOGRAPHIC EFFECT
   ========================================== */
.preloader__text {
    position: relative;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 700;
    font-family: 'Courier New', monospace;
    text-transform: uppercase;
    letter-spacing: 8px;
    text-shadow:
        0 0 10px var(--text-glow),
        0 0 20px var(--text-glow),
        0 0 30px var(--text-glow);
    animation: glitchText 3s ease-in-out infinite;
}

.preloader__text::before,
.preloader__text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.preloader__text::before {
    color: var(--neon-red);
    animation: glitch1 2s infinite;
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}

.preloader__text::after {
    color: var(--neon-scarlet);
    animation: glitch2 2s infinite;
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
}

@keyframes glitchText {
    0%, 90%, 100% { opacity: 1; }
    92%, 96% { opacity: 0.8; }
}

@keyframes glitch1 {
    0%, 100% { transform: translate(0); }
    33% { transform: translate(-2px, 1px); }
    66% { transform: translate(2px, -1px); }
}

@keyframes glitch2 {
    0%, 100% { transform: translate(0); }
    33% { transform: translate(2px, -1px); }
    66% { transform: translate(-2px, 1px); }
}

/* ==========================================
   ANIMATED DOTS
   ========================================== */
.preloader__dots {
    display: inline-block;
    width: 30px;
    text-align: left;
}

.preloader__dots::after {
    content: '';
    animation: dots 1.5s steps(4) infinite;
}

@keyframes dots {
    0% { content: ''; }
    25% { content: '.'; }
    50% { content: '..'; }
    75% { content: '...'; }
    100% { content: ''; }
}

/* ==========================================
   HASHRATE PROGRESS BAR
   ========================================== */
.preloader__progress {
    position: relative;
    width: 300px;
    height: 4px;
    background: rgba(255, 59, 59, 0.1);
    border-radius: 10px;
    overflow: hidden;
    box-shadow:
        inset 0 0 10px rgba(255, 59, 59, 0.2),
        0 0 10px rgba(255, 59, 59, 0.3);
}

.preloader__progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg,
        var(--neon-red) 0%,
        var(--neon-crimson) 50%,
        var(--neon-scarlet) 100%);
    border-radius: 10px;
    animation: progressLoad 2s ease-in-out infinite;
    box-shadow: 0 0 20px var(--neon-red);
}

@keyframes progressLoad {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* Progress Glowing Dot */
.preloader__progress-bar::after {
    content: '';
    position: absolute;
    right: -4px;
    top: 50%;
    width: 8px;
    height: 8px;
    background: var(--neon-red);
    border-radius: 50%;
    transform: translateY(-50%);
    box-shadow: 0 0 15px var(--neon-red);
    animation: dotGlow 1s ease-in-out infinite;
}

@keyframes dotGlow {
    0%, 100% { box-shadow: 0 0 15px var(--neon-red); }
    50% { box-shadow: 0 0 25px var(--neon-red), 0 0 35px var(--neon-red); }
}

/* ==========================================
   HASHRATE DISPLAY
   ========================================== */
.preloader__hashrate {
    font-family: 'Courier New', monospace;
    font-size: 12px;
    color: var(--color-light);
    text-shadow: 0 0 5px var(--neon-red);
    letter-spacing: 2px;
    animation: hashrateBlink 1s infinite;
}

@keyframes hashrateBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ==========================================
   BINARY CODE BACKGROUND
   ========================================== */
.preloader__binary {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: rgba(255, 59, 59, 0.1);
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

.preloader__binary-column {
    position: absolute;
    top: -100%;
    white-space: nowrap;
    animation: binaryFall linear infinite;
}

@keyframes binaryFall {
    0% { top: -100%; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

/* ==========================================
   CORNER DECORATIONS - REMOVED
   ========================================== */
.preloader__corner {
    display: none;
}

/* ==========================================
   GOLDEN COINS ANIMATION
   ========================================== */
.preloader__coin {
    position: absolute;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 50%, #ffd700 100%);
    border-radius: 50%;
    box-shadow:
        0 0 10px rgba(255, 215, 0, 0.8),
        0 0 20px rgba(255, 215, 0, 0.5),
        inset 0 -2px 4px rgba(0, 0, 0, 0.3),
        inset 0 2px 4px rgba(255, 255, 255, 0.5);
    animation: coinFall linear infinite;
    opacity: 0;
}

.preloader__coin::before {
    content: '$';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Arial', sans-serif;
    font-size: 12px;
    font-weight: bold;
    color: #8b6914;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}

.preloader__coin::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 4px;
    width: 6px;
    height: 6px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.8) 0%, transparent 70%);
    border-radius: 50%;
}

@keyframes coinFall {
    0% {
        top: 50%;
        opacity: 0;
        transform: translateX(-50%) translateY(0) rotateY(0deg) scale(0.5);
    }
    10% {
        opacity: 1;
        transform: translateX(-50%) translateY(0) rotateY(180deg) scale(1);
    }
    90% {
        opacity: 1;
    }
    100% {
        top: 100%;
        opacity: 0;
        transform: translateX(-50%) translateY(100px) rotateY(720deg) scale(0.8);
    }
}

/* Coin size variations */
.preloader__coin--small {
    width: 15px;
    height: 15px;
}

.preloader__coin--small::before {
    font-size: 9px;
}

.preloader__coin--large {
    width: 25px;
    height: 25px;
}

.preloader__coin--large::before {
    font-size: 15px;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 768px) {
    .preloader__spinner {
        width: 120px;
        height: 120px;
    }

    .preloader__circle {
        width: 90px;
        height: 90px;
        margin: -45px 0 0 -45px;
    }

    .preloader__circle::after {
        width: 55px;
        height: 55px;
    }

    .preloader__pulse {
        width: 110px;
        height: 110px;
        margin: -55px 0 0 -55px;
    }

    .preloader__text {
        font-size: 14px;
        letter-spacing: 4px;
    }

    .preloader__progress {
        width: 250px;
    }

    .preloader__content {
        gap: 32px;
    }

    .preloader__coin {
        width: 16px;
        height: 16px;
    }

    .preloader__coin::before {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .preloader__spinner {
        width: 100px;
        height: 100px;
    }

    .preloader__circle {
        width: 70px;
        height: 70px;
        margin: -35px 0 0 -35px;
    }

    .preloader__circle::after {
        width: 45px;
        height: 45px;
    }

    .preloader__pulse {
        width: 90px;
        height: 90px;
        margin: -45px 0 0 -45px;
    }

    .preloader__text {
        font-size: 12px;
        letter-spacing: 3px;
    }

    .preloader__progress {
        width: 200px;
    }

    .preloader__content {
        gap: 24px;
    }

    .preloader__coin {
        width: 14px;
        height: 14px;
    }

    .preloader__coin::before {
        font-size: 8px;
    }

    .preloader__coin--small {
        width: 12px;
        height: 12px;
    }

    .preloader__coin--large {
        width: 18px;
        height: 18px;
    }
}

/* ==========================================
   BODY LOCK WHEN PRELOADER ACTIVE
   ========================================== */
body.preloader-active {
    overflow: hidden;
}