/* Variables CSS Premium */
        :root {
            --primary-blue: #007bff;
            --secondary-teal: #17a2b8;
            --success-green: #28a745;
            --light-green: #20c997;
            --warning-yellow: #ffc107;
            --danger-red: #dc3545;
            --dark-blue: #0056b3;
            --glass-bg: rgba(255, 255, 255, 0.1);
            --glass-border: rgba(255, 255, 255, 0.2);
            --text-primary: #2d3748;
            --text-secondary: #4a5568;
            --text-light: #718096;
            --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.07);
            --shadow-medium: 0 10px 25px rgba(0, 0, 0, 0.1);
            --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.15);
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--text-primary);
            background-size: 400% 400%;
            animation: gradientShift 20s ease infinite;
            min-height: 100vh;
            color: var(--text-primary);
            line-height: 1.6;
        }

        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        /* Particles Background */
        .particles-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
            background-image: 
                radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
                radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
            background-size: 100px 100px, 80px 80px;
            animation: particlesMove 25s linear infinite;
        }

        @keyframes particlesMove {
            0% { transform: translate(0, 0); }
            100% { transform: translate(-100px, -100px); }
        }

        /* Container Premium */
        .guide-container {
            position: relative;
            z-index: 10;
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem 1rem;
        }

        /* Header Premium */
        .guide-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(30px);
            border-radius: 32px;
            padding: 3rem 2rem;
            text-align: center;
            margin-bottom: 3rem;
            box-shadow: var(--shadow-heavy);
            border: 1px solid rgba(255, 255, 255, 0.3);
            position: relative;
            overflow: hidden;
        }

        .guide-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-blue), var(--secondary-teal), var(--success-green), var(--light-green));
            animation: headerGlow 3s ease infinite;
        }

        @keyframes headerGlow {
            0%, 100% { opacity: 0.5; }
            50% { opacity: 1; }
        }

        .guide-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: white;
            font-size: 2.5rem;
            box-shadow: var(--shadow-medium);
            animation: iconFloat 3s ease-in-out infinite;
        }

        @keyframes iconFloat {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-8px); }
        }

        .guide-title {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .guide-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Navigation Tabs Premium */
        .guide-nav {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            padding: 1rem;
            margin-bottom: 2rem;
            border: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: var(--shadow-medium);
        }

        .nav-pills .nav-link {
            background: transparent;
            border: 2px solid transparent;
            border-radius: 15px;
            padding: 0.75rem 1.5rem;
            color: var(--text-secondary);
            font-weight: 600;
            transition: all 0.3s ease;
            margin: 0 0.25rem;
            position: relative;
            overflow: hidden;
        }

        .nav-pills .nav-link::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;
        }

        .nav-pills .nav-link:hover::before {
            left: 100%;
        }

        .nav-pills .nav-link:hover {
            background: rgba(0, 123, 255, 0.1);
            border-color: rgba(0, 123, 255, 0.3);
            transform: translateY(-2px);
        }

        .nav-pills .nav-link.active {
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
            border-color: var(--primary-blue);
            color: white;
            box-shadow: 0 8px 25px rgba(0, 123, 255, 0.3);
        }

        /* Content Cards Premium */
        .content-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(25px);
            border-radius: 24px;
            padding: 2.5rem;
            margin-bottom: 2rem;
            border: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: var(--shadow-heavy);
            position: relative;
            overflow: hidden;
            transition: all 0.4s ease;
        }

        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
        }

        .content-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary-blue), var(--secondary-teal));
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .content-card:hover::before {
            transform: scaleX(1);
        }

        /* Step Cards */
        .step-card {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(15px);
            border-radius: 20px;
            padding: 2rem;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: var(--shadow-light);
            position: relative;
            transition: all 0.3s ease;
        }

        .step-card:hover {
            transform: translateX(10px);
            box-shadow: var(--shadow-medium);
        }

        .step-number {
            position: absolute;
            top: -15px;
            left: 2rem;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: var(--shadow-light);
        }

        .step-title {
            font-family: 'Poppins', sans-serif;
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .step-description {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        /* Alert Cards Premium */
        .alert-premium {
            border: none;
            border-radius: 16px;
            padding: 1.5rem;
            margin: 1.5rem 0;
            backdrop-filter: blur(10px);
            position: relative;
            overflow: hidden;
        }

        .alert-warning {
            background: rgba(255, 193, 7, 0.15);
            border-left: 4px solid var(--warning-yellow);
            color: #856404;
        }

        .alert-danger {
            background: rgba(220, 53, 69, 0.15);
            border-left: 4px solid var(--danger-red);
            color: #721c24;
        }

        .alert-info {
            background: rgba(23, 162, 184, 0.15);
            border-left: 4px solid var(--secondary-teal);
            color: #0c5460;
        }

        .alert-success {
            background: rgba(40, 167, 69, 0.15);
            border-left: 4px solid var(--success-green);
            color: #155724;
        }

        /* Tool Cards */
        .tool-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .tool-card {
            background: rgba(255, 255, 255, 0.9);
            border-radius: 16px;
            padding: 1.5rem;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .tool-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-medium);
        }

        .tool-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            margin: 0 auto 1rem;
            box-shadow: var(--shadow-light);
        }

        .tool-name {
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .tool-description {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* Problem Solution Cards */
        .problem-card {
            background: rgba(255, 255, 255, 0.9);
            border-radius: 20px;
            padding: 2rem;
            margin-bottom: 2rem;
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(15px);
            position: relative;
            overflow: hidden;
        }

        .problem-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 2px dashed rgba(0, 123, 255, 0.2);
        }

        .problem-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--danger-red), #ff6b9d);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.3rem;
            box-shadow: var(--shadow-light);
        }

        .solution-icon {
            background: linear-gradient(135deg, var(--success-green), var(--light-green));
        }

        .problem-title {
            font-family: 'Poppins', sans-serif;
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }

        .solution-section {
            background: rgba(40, 167, 69, 0.05);
            border-radius: 12px;
            padding: 1.5rem;
            margin-top: 1.5rem;
            border: 1px solid rgba(40, 167, 69, 0.2);
        }

        .solution-steps {
            list-style: none;
            padding: 0;
        }

        .solution-steps li {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            margin-bottom: 1rem;
            padding: 0.75rem;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 10px;
        }

        .solution-steps li::before {
            content: counter(step-counter);
            counter-increment: step-counter;
            width: 25px;
            height: 25px;
            background: linear-gradient(135deg, var(--success-green), var(--light-green));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .solution-steps {
            counter-reset: step-counter;
        }

        /* Contact CTA */
        .contact-cta {
            background: linear-gradient(135deg, 
                rgba(0, 123, 255, 0.95), 
                rgba(23, 162, 184, 0.9), 
                rgba(40, 167, 69, 0.85));
            border-radius: 24px;
            padding: 3rem 2rem;
            text-align: center;
            margin: 3rem 0;
            backdrop-filter: blur(15px);
            border: 2px solid rgba(255, 255, 255, 0.3);
            position: relative;
            overflow: hidden;
            box-shadow: 
                0 20px 40px rgba(0, 123, 255, 0.3),
                0 0 50px rgba(23, 162, 184, 0.2),
                inset 0 1px 0 rgba(255, 255, 255, 0.4);
        }

        .contact-cta::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.2), transparent),
                radial-gradient(circle at 70% 70%, rgba(0, 255, 255, 0.1), transparent),
                linear-gradient(45deg, rgba(255, 255, 255, 0.1), transparent);
            animation: ctaBackground 8s ease-in-out infinite;
        }

        @keyframes ctaBackground {
            0%, 100% { 
                transform: scale(1) rotate(0deg);
                opacity: 0.8;
            }
            50% { 
                transform: scale(1.02) rotate(1deg);
                opacity: 1;
            }
        }

        .cta-content {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-family: 'Poppins', sans-serif;
            font-size: 2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 1rem;
            text-shadow: 
                0 2px 4px rgba(0, 0, 0, 0.3),
                0 0 20px rgba(255, 255, 255, 0.5);
        }

        .cta-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.95);
            margin-bottom: 2rem;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }

        .contact-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-contact {
            background: linear-gradient(135deg, var(--success-green), var(--light-green));
            border: none;
            border-radius: 50px;
            padding: 1rem 2rem;
            color: white;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: var(--shadow-light);
        }

        .btn-contact:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(40, 167, 69, 0.3);
            color: white;
            text-decoration: none;
        }

        .btn-contact.whatsapp {
            background: #25D366;
        }

        .btn-contact.phone {
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .guide-container {
                padding: 1rem 0.5rem;
            }

            .guide-header {
                padding: 2rem 1rem;
            }

            .content-card {
                padding: 1.5rem;
            }

            .step-card {
                padding: 1.5rem;
            }

            .contact-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn-contact {
                width: 100%;
                max-width: 250px;
                justify-content: center;
            }

            .tool-grid {
                grid-template-columns: 1fr;
            }
        }