/* Premium Ribbon-Cutting Preloader Stylesheet */

:root {
    --gold-primary: #dfb75c;
    --gold-light: #fbe6a2;
    --gold-dark: #b88d30;
    --ribbon-red-light: #e60026;
    --ribbon-red-medium: #b3001b;
    --ribbon-red-dark: #7a0010;
    --ribbon-red-deep: #470005;
}

/* Preloader Container */
#preloader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: radial-gradient(circle at center, #0a1c13 0%, #030805 100%);
    z-index: 999999;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), visibility 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Background Ambient Glows */
#preloader-overlay::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(223, 183, 92, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 1;
}

#preloader-overlay::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(230, 0, 38, 0.05) 0%, rgba(0, 0, 0, 0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 1;
}

/* Ribbon Container & Segments */
.preloader-ribbon-container {
    position: absolute;
    width: 100%;
    height: 80px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    z-index: 10;
    pointer-events: none;
}

.ribbon-half {
    position: absolute;
    height: 64px;
    top: 50%;
    transform: translateY(-50%);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5), inset 0 2px 2px rgba(255, 255, 255, 0.2);
    transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1);
}

.ribbon-left {
    left: 0;
    width: 50.3%; /* Slight overlap in the center */
    border-radius: 0 4px 4px 0;
    background: linear-gradient(
        to bottom,
        var(--ribbon-red-light) 0%,
        var(--ribbon-red-medium) 30%,
        var(--ribbon-red-dark) 70%,
        var(--ribbon-red-deep) 100%
    );
    border-top: 3px solid var(--gold-primary);
    border-bottom: 3px solid var(--gold-primary);
    transform-origin: left center;
}

.ribbon-right {
    right: 0;
    width: 50.3%; /* Slight overlap in the center */
    border-radius: 4px 0 0 4px;
    background: linear-gradient(
        to bottom,
        var(--ribbon-red-light) 0%,
        var(--ribbon-red-medium) 30%,
        var(--ribbon-red-dark) 70%,
        var(--ribbon-red-deep) 100%
    );
    border-top: 3px solid var(--gold-primary);
    border-bottom: 3px solid var(--gold-primary);
    transform-origin: right center;
}

/* Ribbon Shine Effect */
.ribbon-half::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0) 30%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0) 70%
    );
    background-size: 200% 100%;
    animation: ribbonShine 4s infinite linear;
    pointer-events: none;
}

@keyframes ribbonShine {
    0% { background-position: -150% 0; }
    100% { background-position: 150% 0; }
}

/* Ribbon Cut Separation classes */
#preloader-overlay.cut-active .ribbon-left {
    transform: translateY(-50%) translateX(-100%) rotate(-4deg);
}

#preloader-overlay.cut-active .ribbon-right {
    transform: translateY(-50%) translateX(100%) rotate(4deg);
}

/* Scissors Wrapper & SVG */
.scissors-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    z-index: 20;
    width: 180px;
    height: 180px;
    display: flex;
    justify-content: center;
    align-items: center;
    filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.6));
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.5s ease-out;
}

.scissors-svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

/* Golden Scissor Blades Styles */
.scissor-blade {
    fill: url(#gold-metallic);
    stroke: var(--gold-dark);
    stroke-width: 0.5;
    transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.scissor-finger-ring {
    fill: none;
    stroke: url(#gold-metallic);
    stroke-width: 8;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.4));
}

.scissor-screw {
    fill: var(--gold-light);
    stroke: var(--gold-dark);
    stroke-width: 1.5;
}

/* Initial Open Scissor State */
.blade-top-group {
    transform-origin: 90px 90px;
    transform: rotate(20deg);
    transition: transform 2s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.blade-bottom-group {
    transform-origin: 90px 90px;
    transform: rotate(-20deg);
    transition: transform 2s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Cut Scissor Action */
#preloader-overlay.cutting-trigger .blade-top-group {
    transform: rotate(-4deg); /* Blades overlap slightly for visual realism */
}

#preloader-overlay.cutting-trigger .blade-bottom-group {
    transform: rotate(4deg);
}

/* Post-Cut Scissor Exit */
#preloader-overlay.cut-active .scissors-container {
    transform: translate(-50%, -50%) scale(0.85);
    opacity: 0;
}

/* Golden Flash during Cut */
.cut-flash-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    background: radial-gradient(circle, #ffffff 0%, var(--gold-light) 40%, rgba(223, 183, 92, 0) 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    z-index: 15;
    opacity: 0;
    pointer-events: none;
}

#preloader-overlay.cutting-trigger .cut-flash-effect {
    animation: flashBurst 0.6s cubic-bezier(0.1, 0.8, 0.3, 1) forwards;
    animation-delay: 0.25s; /* Fires precisely at the moment of blade contact */
}

@keyframes flashBurst {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(60);
        opacity: 0;
    }
}

/* Canvas Particle Layer */
#preloader-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 12;
}

/* Web App Main Content Entrance Transitions */
body.preloader-running {
    overflow: hidden !important;
}

#yfa-main-wrapper {
    opacity: 0;
    transform: scale(0.96);
    filter: blur(8px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

body.preloader-done #yfa-main-wrapper {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
}

/* Hide Preloader fully when done */
#preloader-overlay.fade-out {
    opacity: 0;
    visibility: hidden;
}

/* Brand Text Style for Preloader */
.preloader-brand-text {
    position: absolute;
    bottom: 8%;
    left: 50%;
    transform: translateX(-50%);
    color: #ffffff;
    font-family: 'Montserrat', sans-serif;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 4px;
    text-transform: uppercase;
    opacity: 0.6;
    z-index: 5;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    text-align: center;
    transition: opacity 0.5s ease;
}

#preloader-overlay.cut-active .preloader-brand-text {
    opacity: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .ribbon-half {
        height: 48px;
    }
    .scissors-container {
        width: 140px;
        height: 140px;
    }
    .preloader-brand-text {
        font-size: 11px;
        letter-spacing: 3px;
    }
}