/**
 * CFSJ TECH - Core Stylesheet
 * Architecture: CSS Variables, BEM-inspired scopes, Hardware Accelerated
 * Focus: Performance, Maintainability, Accessibility (A11y)
 */

/* --- 1. Design Tokens (CSS Variables) --- */
:root {
    /* Colors (Sincronizado com Tailwind) */
    --color-bg-base: #050505;
    --color-text-base: #E0E0E0;
    --color-text-muted: #9ca3af; /* Tailwind gray-400 */
    --color-cyan-400: #22d3ee;
    --color-cyan-500: #06b6d4;
    
    /* Glassmorphism Props */
    --glass-bg: rgba(10, 15, 25, 0.4);
    --glass-border: rgba(6, 182, 212, 0.15);
    --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    
    /* Transitions & Curves */
    --ease-snappy: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-bounce: cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --transition-base: 0.3s var(--ease-snappy);
}

/* --- 2. Base & Tipografia --- */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-bg-base);
    color: var(--color-text-base);
    overflow: hidden; /* Mantido para a página em construção */
}

.font-exo {
    font-family: 'Exo 2', sans-serif;
}

/* --- 3. Custom Scrollbar --- */
::-webkit-scrollbar { 
    width: 8px; 
}
::-webkit-scrollbar-track { 
    background: var(--color-bg-base); 
}
::-webkit-scrollbar-thumb {
    background-color: var(--color-cyan-500);
    border-radius: 4px;
    transition: background-color var(--transition-base);
}
::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-cyan-400); 
}

/* --- 4. Canvas 3D de Fundo --- */
#background-canvas {
    position: fixed;
    inset: 0; /* Propriedade lógica moderna equivalente a top:0, left:0, width:100%, height:100% */
    z-index: 0;
    pointer-events: none; /* Garante que o canvas não bloqueie eventos de clique (hit-testing) */
    opacity: 0.8;
}

/* --- 5. Componentes de UI --- */

/* Efeito de Vidro (Glassmorphism) */
.glassmorphism {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* Navegação */
.nav-link {
    position: relative;
    padding: 8px 4px;
    font-family: 'Exo 2', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

.nav-link:hover, 
.active-link { 
    color: #ffffff !important; 
}

.nav-link::before, 
.nav-link::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--color-cyan-500);
    left: 0;
    transform: scaleX(0);
    transition: transform 0.4s var(--ease-snappy);
}

.nav-link::before { 
    top: 0; 
    transform-origin: left; 
}

.nav-link::after { 
    bottom: 0; 
    transform-origin: right; 
}

.nav-link:hover::before, 
.nav-link:hover::after, 
.active-link::before, 
.active-link::after {
    transform: scaleX(1);
}

/* Botão Cyberpunk */
.cyber-button {
    position: relative;
    overflow: hidden;
    transition: transform 0.3s var(--ease-bounce), box-shadow var(--transition-base);
}

.cyber-button:hover {
    transform: scale(1.03); 
    box-shadow: 0 0 25px rgba(6, 182, 212, 0.6);
}

/* Varredura de luz acionada via GPU (Transform no lugar de Left/Width) */
.cyber-button::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease-in-out;
    pointer-events: none;
}

.cyber-button:hover::before {
    transform: translateX(100%);
}

/* Hover 3D em Cards */
.card-3d-hover {
    transition: transform 0.4s var(--ease-bounce), box-shadow 0.4s ease, border-color 0.4s ease;
    transform-style: preserve-3d;
    will-change: transform;
}

.card-3d-hover:hover {
    box-shadow: 0 20px 40px rgba(6, 182, 212, 0.2);
    border-color: rgba(6, 182, 212, 0.5);
    transform: translateY(-5px) rotateX(2deg) rotateY(-2deg);
}

/* iFrame de Mapa (Dark Mode) */
.map-container iframe {
    filter: grayscale(100%) invert(92%) contrast(85%) hue-rotate(180deg);
    transition: filter 0.5s ease;
}

.map-container:hover iframe {
    filter: grayscale(20%) invert(90%) contrast(100%) hue-rotate(180deg);
}

/* --- 6. Animações & Acessibilidade --- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    will-change: opacity, transform;
    transition: opacity 0.8s var(--ease-snappy), transform 0.8s var(--ease-snappy);
}

.is-visible {
    opacity: 1;
    transform: translateY(0) !important;
}

/* A11y (Acessibilidade): Desativa animações se o usuário tiver preferência por movimento reduzido */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .animate-on-scroll {
        opacity: 1 !important;
        transform: none !important;
    }
}