/**
 * ============================================================================
 * PORTFÓLIO - CSS UNIFICADO E OTIMIZADO
 * Engenharia de Sistemas, Inovação e Portfólio
 * ============================================================================
 */

/* --- 1. Variáveis Globais e Reset --- */
:root {
    --cyan-primary: #00f2ff;
    --cyan-glow: rgba(0, 242, 255, 0.4);
    --glass-bg: rgba(10, 15, 25, 0.85);
    --transition: all 0.4s ease;
    --transition-standard: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #050505;
    color: #E0E0E0;
    overflow-x: hidden;
    line-height: 1.6;
}

.font-exo { font-family: 'Exo 2', sans-serif; }
.fira-code { font-family: 'Fira Code', monospace; }

/* --- 2. Canvas 3D de Fundo --- */
#background-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.8;
    pointer-events: none;
}

/* --- 3. Componentes Glassmorphism --- */
.glassmorphism, .glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(0, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    transition: var(--transition-standard);
}

.glass-card:hover, .project-card:hover {
    border-color: var(--cyan-primary);
    box-shadow: 0 0 25px var(--cyan-glow);
    transform: translateY(-5px);
}

/* --- 4. Animações de Scroll --- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* --- 5. Botões e Interatividade --- */
.cyber-button {
    position: relative;
    overflow: hidden;
    transition: var(--transition-standard);
}

.cyber-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px var(--cyan-glow);
}

.cyber-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.cyber-button:hover::before { 
    left: 100%; 
}

/* Filtros de Categoria */
.filter-btn {
    transition: var(--transition-standard);
    cursor: pointer;
}

.filter-btn.active {
    background-color: var(--cyan-primary) !important;
    color: #000 !important;
    border-color: var(--cyan-primary) !important;
    box-shadow: 0 0 15px var(--cyan-glow);
}

/* --- 6. Navegação (Header e Setas do Modal) --- */
.nav-link {
    position: relative;
    font-family: 'Exo 2', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #a0a0a0;
    transition: color 0.3s ease;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--cyan-primary);
    bottom: -4px;
    left: 0;
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.19, 1, 0.22, 1);
    transform-origin: right;
}

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

/* Setas de Navegação (Carrossel e Galeria) */
.nav-btn {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 50%;
    transition: var(--transition-standard);
}

.nav-btn:hover {
    background: var(--cyan-primary);
    color: #000;
    box-shadow: 0 0 15px var(--cyan-glow);
}

/* --- 7. Cards de Projeto & Badges --- */
.project-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 100%;
}

.project-image-container {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: #000;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-image { 
    transform: scale(1.1); 
}

.category-badge {
    background: rgba(0, 242, 255, 0.15);
    border: 1px solid var(--cyan-primary);
    color: var(--cyan-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
}

/* --- 8. Motor de Modal Unificado --- */
#modal-overlay {
    /* Controle de display e z-index gerenciado primariamente pelo TailwindCSS + JS */
    transition: opacity 0.4s ease;
}

#modal-overlay.active {
    display: flex !important;
    opacity: 1;
}

.modal-content-wrapper {
    transform: scale(0.9);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#modal-overlay.active .modal-content-wrapper { 
    transform: scale(1); 
}

/* --- 9. Personalização da Scrollbar --- */
::-webkit-scrollbar { 
    width: 6px; 
}

::-webkit-scrollbar-track { 
    background: #050505; 
}

::-webkit-scrollbar-thumb {
    background: #1f2937;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--cyan-primary);
    box-shadow: 0 0 10px var(--cyan-glow);
}