/* ============================================
           VARIÁVEIS GLOBAIS
           ============================================ */
        :root {
            /* Cores principais - Dark Theme */
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #8b5cf6;
            --accent: #10b981;
            --warning: #f59e0b;
            --danger: #ef4444;

            /* Backgrounds */
            --bg-primary: #0f172a;
            --bg-secondary: #1e293b;
            --bg-tertiary: #334155;

            /* Textos */
            --text-primary: #f8fafc;
            --text-secondary: #cbd5e1;
            --text-muted: #94a3b8;

            /* Bordas */
            --border: #475569;
            --border-light: #64748b;

            /* Gradientes */
            --gradient-primary: linear-gradient(135deg, #2563eb 0%, #8b5cf6 100%);
            --gradient-secondary: linear-gradient(135deg, #10b981 0%, #0ea5e9 100%);
            --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);

            /* Sombras */
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

            /* Transições */
            --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* Light Theme */
        .light-theme {
            --bg-primary: #ffffff;
            --bg-secondary: #f8fafc;
            --bg-tertiary: #f1f5f9;
            --text-primary: #0f172a;
            --text-secondary: #334155;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --border-light: #cbd5e1;
        }

        /* ============================================
           ESTILOS BASE
           ============================================ */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            transition: background-color var(--transition), color var(--transition);
            min-height: 100vh;
        }

        /* ============================================
           NAVIGAÇÃO SIMPLES
           ============================================ */
        .simple-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            padding: 1rem 1.5rem;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .light-theme .simple-nav {
            background: rgba(255, 255, 255, 0.95);
        }

        .nav-buttons {
            display: flex;
            gap: 0.75rem;
            align-items: center;
        }

         /* ============================================
       BOTÕES (Totalmente padronizados)
       ============================================ */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.75rem;
        padding: 0.75rem 2rem;
        font-size: 0.875rem;
        font-weight: 600;
        border-radius: 0.75rem;
        border: 2px solid transparent;
        cursor: pointer;
        transition: all var(--transition);
        text-decoration: none;
        position: relative;
        overflow: hidden;
        z-index: 1;
    }

    .btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 0;
        height: 100%;
        background: rgba(255, 255, 255, 0.1);
        transition: width var(--transition);
        z-index: -1;
    }

    .btn:hover::before {
        width: 100%;
    }

    .btn-primary {
        background: var(--gradient-primary);
        color: white;
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-xl);
        color: white;
    }

    .btn-outline {
        background: transparent;
        border-color: var(--border);
        color: var(--text-primary);
    }

    .btn-outline:hover {
        border-color: var(--primary);
        color: var(--primary);
        transform: translateY(-2px);
    }

    .btn-icon {
        width: 48px;
        height: 48px;
        padding: 0;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--gradient-primary);
        color: white;
        border: none;
    }

    .btn-icon:hover {
        transform: scale(1.1) rotate(180deg);
    }

    .btn-sm {
        padding: 0.5rem 1.5rem;
        font-size: 0.8125rem;
    }

    .btn-lg {
        padding: 1rem 2.5rem;
        font-size: 1rem;
    }

        /* ============================================
           HERO SECTION
           ============================================ */
        .hero-section {
            min-height: 60vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding: 8rem 0 4rem;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.95) 100%);
        }

        .light-theme .hero-section {
            background: linear-gradient(135deg, rgba(248, 250, 252, 0.95) 0%, rgba(241, 245, 249, 0.95) 100%);
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 30%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
            z-index: -1;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-title {
            font-size: clamp(2.5rem, 5vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.5rem;
        }

        .text-gradient {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: inline-block;
        }

        .hero-subtitle {
            font-size: 1.125rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 2.5rem;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
            margin-top: 3rem;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        /* ============================================
           FILTER SYSTEM
           ============================================ */
        .filter-section {
            background: var(--bg-secondary);
            border-radius: 1rem;
            padding: 1.5rem;
            border: 1px solid var(--border);
            margin-bottom: 2rem;
            position: sticky;
            top: 80px;
            z-index: 100;
        }

        .filter-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .filter-title {
            font-size: 1.25rem;
            font-weight: 600;
        }

        .filter-count {
            background: var(--primary);
            color: white;
            padding: 0.25rem 0.75rem;
            border-radius: 2rem;
            font-size: 0.875rem;
            font-weight: 500;
        }

        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }

        .filter-tag {
            padding: 0.5rem 1rem;
            background: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: 2rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .filter-tag.active {
            background: var(--primary);
            border-color: var(--primary);
            color: white;
        }

        .filter-tag i {
            font-size: 0.75rem;
        }

        .search-box {
            position: relative;
        }

        .search-input {
            width: 100%;
            padding: 0.875rem 1rem 0.875rem 3rem;
            background: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: 0.75rem;
            color: var(--text-primary);
            font-size: 0.875rem;
            transition: all var(--transition);
        }

        .search-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }

        .search-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
        }

        /* ============================================
           PROJECTS GRID
           ============================================ */
        .projects-section {
            padding: 2rem 0 4rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmin(350px, 1fr));
            gap: 1.5rem;
        }

        @media (max-width: 768px) {
            .projects-grid {
                grid-template-columns: 1fr;
            }
        }

        .project-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 1rem;
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .project-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary);
            box-shadow: var(--shadow-xl);
        }

        .project-image {
            height: 200px;
            position: relative;
            overflow: hidden;
        }

        .project-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .project-card:hover .project-image img {
            transform: scale(1.05);
        }

        .project-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            padding: 0.25rem 0.75rem;
            background: rgba(15, 23, 42, 0.9);
            border: 1px solid var(--border);
            border-radius: 2rem;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-primary);
            backdrop-filter: blur(10px);
        }

        .light-theme .project-badge {
            background: rgba(255, 255, 255, 0.9);
        }

        .project-content {
            padding: 1.5rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .project-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .project-description {
            color: var(--text-secondary);
            font-size: 0.875rem;
            margin-bottom: 1.25rem;
            flex-grow: 1;
        }

        .project-tech {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }

        .tech-tag {
            padding: 0.25rem 0.625rem;
            background: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: 0.375rem;
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        .project-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: auto;
        }

        .project-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .project-link {
            padding: 0.5rem 1rem;
            background: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: 0.5rem;
            color: var(--text-primary);
            text-decoration: none;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .project-link:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: white;
            transform: translateY(-2px);
        }

        .project-link.disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .project-link.disabled:hover {
            background: var(--bg-primary);
            border-color: var(--border);
            color: var(--text-primary);
            transform: none;
        }

        /* ============================================
   PROJECTS GRID - CORRIGIDO
   ============================================ */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   PROJECT CARD - MELHORADO
   ============================================ */

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    overflow: hidden;
    transition: all var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    break-inside: avoid;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-xl);
}

/* Image aspect ratio fix */
.project-image {
    height: 200px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

/* ============================================
   RESPONSIVE GRID ADJUSTMENTS
   ============================================ */

/* Tablet */
@media (min-width: 769px) and (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
    }
    
    .project-image {
        height: 180px;
    }
}

/* Desktop */
@media (min-width: 1025px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.75rem;
    }
    
    .project-image {
        height: 220px;
    }
}

/* Large Desktop */
@media (min-width: 1400px) {
    .projects-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 2rem;
    }
    
    .project-image {
        height: 240px;
    }
}

/* ============================================
   MASONRY LAYOUT ALTERNATIVE (OPCIONAL)
   ============================================ */

/* Para um layout mais dinâmico tipo Pinterest */
.masonry-grid {
    columns: 3 350px;
    column-gap: 1.5rem;
}

.masonry-grid .project-card {
    display: inline-block;
    width: 100%;
    margin-bottom: 1.5rem;
    break-inside: avoid;
}

@media (max-width: 768px) {
    .masonry-grid {
        columns: 1;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .masonry-grid {
        columns: 2;
    }
}

        /* ============================================
           EMPTY STATE
           ============================================ */
        .empty-state {
            text-align: center;
            padding: 4rem 2rem;
            display: none;
        }

        .empty-state.show {
            display: block;
        }

        .empty-icon {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            opacity: 0.5;
        }

        .empty-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
        }

        .empty-text {
            color: var(--text-secondary);
            max-width: 400px;
            margin: 0 auto 2rem;
        }

        /* ============================================
           LOAD MORE
           ============================================ */
        .load-more {
            text-align: center;
            margin: 3rem 0;
        }

        /* ============================================
           TOAST NOTIFICATION
           ============================================ */
        .toast-container {
            position: fixed;
            top: 1rem;
            right: 1rem;
            z-index: 9999;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            max-width: 350px;
        }

        .toast {
            background: var(--bg-secondary);
            border-left: 4px solid var(--primary);
            border-radius: 0.75rem;
            padding: 1rem 1.25rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-xl);
            transform: translateX(100%);
            opacity: 0;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
            border: 1px solid var(--border);
        }

        .toast.show {
            transform: translateX(0);
            opacity: 1;
        }

        .toast.success {
            border-left-color: var(--accent);
        }

        .toast.info {
            border-left-color: var(--primary);
        }

        .toast-content {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-primary);
        }

        .toast-close {
            background: transparent;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            font-size: 1.25rem;
            line-height: 1;
            padding: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 0.25rem;
            transition: all var(--transition-fast);
        }

        .toast-close:hover {
            color: var(--danger);
            background: rgba(239, 68, 68, 0.1);
        }

        /* ============================================
           UTILITY CLASSES
           ============================================ */
        .mt-4 { margin-top: 1.5rem; }
        .mb-4 { margin-bottom: 1.5rem; }
        .text-center { text-align: center; }

        /* ============================================
           RESPONSIVIDADE
           ============================================ */
        @media (max-width: 768px) {
            .simple-nav {
                padding: 0.875rem 1rem;
            }
            
            .hero-section {
                padding: 6rem 0 3rem;
            }
            
            .filter-section {
                padding: 1.25rem;
                position: static;
            }
            
            .filter-header {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .filter-tags {
                gap: 0.375rem;
            }
            
            .filter-tag {
                padding: 0.375rem 0.75rem;
                font-size: 0.8125rem;
            }
            
            .hero-stats {
                gap: 1.5rem;
            }
            
            .stat-number {
                font-size: 2rem;
            }
            
            .projects-grid {
                gap: 1rem;
            }
        }

        @media (max-width: 480px) {
            .hero-title {
                font-size: 2rem;
            }
            
            .hero-subtitle {
                font-size: 1rem;
            }
            
            .filter-section {
                padding: 1rem;
            }
            
            .project-card {
                margin-bottom: 1rem;
            }
            
            .project-content {
                padding: 1.25rem;
            }
            
            .toast-container {
                left: 1rem;
                right: 1rem;
                max-width: none;
            }
        }

        /* ============================================
           SCROLLBAR
           ============================================ */
        ::-webkit-scrollbar {
            width: 10px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-secondary);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 5px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }