/* ==========================================================
   SKY GROUP PRELOADER — TRANSIÇÃO CINEMATOGRÁFICA DE ENTRADA
   Inspirado no Trionn.com com fundo escuro de luxo (Dark Obsidian)
   Sequência Adaptativa: SKYBAR ➔ SKY RESTÔ ➔ SKY ZENITH ➔ SKY GROUP
   ========================================================== */

:root {
    --sk-pl-bg: #050608;
    --sk-pl-card: rgba(13, 17, 23, 0.72);
    --sk-pl-card-border: rgba(255, 255, 255, 0.12);
    --sk-pl-stroke: #f8fafc;
    --sk-pl-muted: #94a3b8;
    
    /* Variações de iluminação temática dos 4 estágios */
    --sk-pl-cyan: #38bdf8;
    --sk-pl-gold: #fbbf24;
    --sk-pl-purple: #c084fc;
    --sk-pl-white: #ffffff;
}

body.is-preloading {
    overflow: hidden !important;
}

/* Container Overlay Principal em Tela Cheia */
.sk-preloader {
    position: fixed;
    inset: 0;
    z-index: 999999;
    background: var(--sk-pl-bg);
    background-image: radial-gradient(ellipse at 50% 50%, #0d1219 0%, #050608 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    -webkit-user-select: none;
    overflow: hidden;
    pointer-events: all;
    will-change: opacity, transform;
}

/* Grid de Linhas Técnicas Arquitetônicas Noturnas */
.sk-preloader__grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: clamp(40px, 4.5vw, 64px) clamp(40px, 4.5vw, 64px);
    pointer-events: none;
}

/* Halo Dinâmico de Iluminação Traseira */
.sk-preloader__halo {
    position: absolute;
    top: 50%;
    left: 50%;
    width: clamp(320px, 38vw, 540px);
    height: clamp(320px, 38vw, 540px);
    transform: translate(-50%, -50%);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0;
    pointer-events: none;
    transition: background 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s ease;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.35) 0%, transparent 70%);
}

/* 4 Cruzes Técnicas Voadoras (+ marks) */
.sk-flying-cross {
    position: fixed;
    width: 14px;
    height: 14px;
    z-index: 1000010;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -50%);
    will-change: left, top, transform, opacity;
}

.sk-flying-cross svg,
.sk-corner-cross svg {
    display: block;
    width: 14px;
    height: 14px;
}

/* Palco Central com Perspectiva Espacial 3D */
.sk-preloader__center {
    position: relative;
    z-index: 1000000;
    display: flex;
    flex-direction: column;
    align-items: center;
    perspective: 1200px;
    transform-style: preserve-3d;
}

/* Card Central Glassmorphic Quadrado */
.sk-logo-box {
    position: relative;
    width: clamp(230px, 22vw, 300px);
    height: clamp(230px, 22vw, 300px);
    background: var(--sk-pl-card);
    border: 1px solid var(--sk-pl-card-border);
    border-radius: 4px;
    box-shadow: 
        0 28px 80px rgba(0, 0, 0, 0.85),
        0 4px 24px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.08) inset;
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.6);
    will-change: transform, opacity;
}

/* Cruzes Técnicas nos 4 Vértices do Box */
.sk-corner-cross {
    position: absolute;
    width: 14px;
    height: 14px;
    z-index: 12;
    opacity: 0;
    will-change: transform, opacity;
    transform-origin: 50% 50%;
}

.sk-corner-cross.tl { top: -7px; left: -7px; }
.sk-corner-cross.tr { top: -7px; right: -7px; }
.sk-corner-cross.bl { bottom: -7px; left: -7px; }
.sk-corner-cross.br { bottom: -7px; right: -7px; }

/* Borda Retangular SVG com Traçado em Tempo Real */
.sk-border-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
    overflow: visible;
}

.sk-border-rect {
    fill: none;
    stroke: var(--sk-pl-stroke);
    stroke-width: 1.5;
    stroke-linecap: square;
    rx: 3;
}

/* Palco dos 4 Logos Adaptativos */
.sk-logo-stage {
    position: relative;
    width: 86%;
    height: 86%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform-style: preserve-3d;
    transition: filter 0.35s ease;
}

.sk-logo-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.85);
    pointer-events: none;
    will-change: transform, opacity, filter;
}

.sk-logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 2px 14px rgba(0, 0, 0, 0.6));
    user-select: none;
    -webkit-user-drag: none;
}

/* Metadados: Indicador de Marca e Contador */
.sk-preloader__meta {
    margin-top: clamp(22px, 3vw, 34px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.sk-brand-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Familjen Grotesk', -apple-system, sans-serif;
}

.sk-brand-badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--sk-pl-cyan);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.35s ease;
    letter-spacing: 0.05em;
}

.sk-brand-name {
    font-size: clamp(12px, 0.95vw, 14px);
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #ffffff;
    transition: color 0.35s ease;
}

.sk-brand-tagline {
    font-size: clamp(11px, 0.85vw, 12px);
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sk-pl-muted);
    opacity: 0.85;
}

/* Contador Numérico Monospaçado */
.sk-counter-wrap {
    display: flex;
    align-items: baseline;
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(13px, 1.05vw, 15px);
    font-weight: 600;
    color: var(--sk-pl-muted);
    letter-spacing: 0.06em;
}

.sk-counter-num {
    color: #ffffff;
    font-variant-numeric: tabular-nums;
    min-width: 3ch;
    text-align: right;
    margin-right: 2px;
}

/* Botão Pular [ESC] Elegante Noturno */
.sk-skip-btn {
    position: absolute;
    bottom: clamp(18px, 2.5vw, 28px);
    right: clamp(18px, 2.8vw, 32px);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 2px;
    color: var(--sk-pl-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    padding: 6px 12px;
    opacity: 0.75;
    transition: all 0.25s ease;
    z-index: 1000020;
}

.sk-skip-btn:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
    color: #ffffff;
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .sk-logo-box {
        width: 240px;
        height: 240px;
    }
    .sk-skip-btn {
        bottom: 16px;
        right: 16px;
    }
    .sk-brand-tagline {
        display: none;
    }
}