* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f5f5f5;
            color: #333;
        }

        /* ===== HEADER SUPERIOR ===== */
        .header-top {
            background: white;
            padding: 1rem 2rem;
            border-bottom: 1px solid #e0e0e0;
        }

        .header-top-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 2rem;
        }

        .header-top-nav {
            display: flex;
            gap: 2rem;
            flex: 1;
        }

        .header-top-nav a {
            text-decoration: none;
            color: #333;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s;
        }

        .header-top-nav a:hover {
            color: #059669;
        }

        .header-top-right {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .search-box {
            position: relative;
        }

        .search-box input {
            padding: 0.5rem 1rem;
            border: 1px solid #ddd;
            border-radius: 4px;
            width: 200px;
        }

        .search-box button {
            position: absolute;
            right: 5px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            cursor: pointer;
            color: #666;
        }

        .university-logos {
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        .university-logos img {
            height: 30px;
            object-fit: contain;
        }

        /* ===== HEADER PRINCIPAL ===== */
        header {
            background: white;
            padding: 1.5rem 2rem;
            border-bottom: 3px solid #059669;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 2rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 1rem;
            text-decoration: none;
            color: #333;
        }

        .logo img {
            height: 80px;
        }

        .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            color: #059669;
        }

        .logo-text p {
            font-size: 0.8rem;
            color: #0369a1;
            font-weight: 600;
        }

        nav {
            display: flex;
            gap: 2rem;
            flex: 1;
            justify-content: center;
        }

        nav button {
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            color: #333;
            transition: color 0.3s;
            padding: 0.5rem 1rem;
        }

        nav button:hover {
            color: #059669;
        }

        .btn-destaque {
            background: #059669;
            color: white;
            border-radius: 20px;
            padding: 0.5rem 1.5rem;
            border: none;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }

        .btn-destaque:hover {
            background: #047857;
        }

        /* ===== HERO SECTION ===== */
        .hero-section {
            background: linear-gradient(135deg, #059669 0%, #0369a1 50%, #059669 100%);
            background-image: url('https://images.unsplash.com/photo-1576092160562-40f08a30e7c4?w=1200&h=500&fit=crop');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 6rem 2rem;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, rgba(5, 150, 105, 0.8) 0%, rgba(3, 105, 161, 0.6) 50%, transparent 100%);
            z-index: 1;
        }

        .hero-content {
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 3rem;
        }

        .hero-text {
            flex: 1;
        }

        .hero-text h1 {
            font-size: 3.5rem;
            font-weight: 900;
            color: #059669;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .hero-text p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.6;
        }

        .hero-image {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-image img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }

        /* ===== CARDS SECTION ===== */
        .cards-section {
            max-width: 1400px;
            margin: -3rem auto 3rem;
            padding: 0 2rem;
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }

        .card {
            background: white;
            border-radius: 8px;
            padding: 2rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            border: 3px solid #059669;
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        .card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #059669;
            margin-bottom: 1rem;
        }

        .card p {
            color: #666;
            line-height: 1.6;
        }

        /* ===== BUTTONS SECTION ===== */
        .buttons-section {
            max-width: 1400px;
            margin: 3rem auto;
            padding: 0 2rem;
            display: flex;
            gap: 2rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .button-group {
            position: relative;
            display: inline-block;
        }

        .submenu {
            position: absolute;
            top: 100%;
            left: 0;
            background: white;
            border: 2px solid #059669;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            min-width: 200px;
            z-index: 100;
            margin-top: 0.5rem;
        }

        .submenu-item {
            display: block;
            padding: 0.75rem 1rem;
            color: #059669;
            text-decoration: none;
            font-weight: 500;
            transition: background 0.3s, color 0.3s;
            border-bottom: 1px solid #e0e0e0;
        }

        .submenu-item:last-child {
            border-bottom: none;
        }

        .submenu-item:hover {
            background: #ecfdf5;
            color: #059669;
        }

        .toggle-btn {
            background: linear-gradient(135deg, #059669 0%, #0369a1 100%);
            color: white;
            border: none;
            padding: 1rem 2rem;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
        }

        .toggle-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(5, 150, 105, 0.4);
        }

        .toggle-btn:active {
            transform: translateY(0);
        }

        /* ===== CONTENT SECTION ===== */
        .content-section {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 2rem;
            background: white;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            border-left: 8px solid #059669;
        }

        .content-inner h2 {
            color: #059669;
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        .content-inner p {
            color: #666;
            line-height: 1.6;
            font-size: 1rem;
        }

        /* ===== PDF ACTIONS ===== */
        .pdf-actions {
            margin-top: 2rem;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .pdf-button {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background: linear-gradient(135deg, #059669 0%, #0369a1 100%);
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
            cursor: pointer;
        }

        .pdf-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(5, 150, 105, 0.4);
        }

        .pdf-button-secondary {
            background: linear-gradient(135deg, #0369a1 0%, #059669 100%);
        }

        /* ===== RESPONSIVO ===== */
        @media (max-width: 768px) {
            .header-top-nav {
                display: none;
            }

            .hero-text h1 {
                font-size: 2rem;
            }

            .hero-text h2 {
                font-size: 2rem;
            }

            .cards-section {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .buttons-section {
                gap: 1rem;
            }

            .toggle-btn {
                padding: 0.75rem 1.5rem;
                font-size: 1rem;
            }

            .pdf-actions {
                flex-direction: column;
            }

            .pdf-button {
                width: 100%;
                text-align: center;
            }

            .university-logos {
                display: none;
            }
        }