:root {
            --bg-color: #f8fafc;
            --surface-color: #ffffff;
            --glass-bg: rgba(255, 255, 255, 0.6);
            --glass-border: rgba(0, 0, 0, 0.05);
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --accent-color: #2563eb;
            --accent-hover: #1d4ed8;
            --glow-blue: 0 0 40px rgba(37, 99, 235, 0.1);
            --glow-bg: rgba(37, 99, 235, 0.15); 
            --grad-text-1: #2563eb;
            --grad-text-2: #0ea5e9;
            --grad-title-1: #0f172a;
            --grad-title-2: #334155;
            --nav-bg: rgba(248, 250, 252, 0.85);
            --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --card-shadow: 0 10px 30px rgba(0,0,0,0.03);
            --btn-sec-bg: rgba(0, 0, 0, 0.05);
            --btn-sec-hover: rgba(0, 0, 0, 0.1);
        }
        [data-theme="dark"] {
            --bg-color: #050505;
            --surface-color: #111111;
            --glass-bg: rgba(255, 255, 255, 0.03);
            --glass-border: rgba(255, 255, 255, 0.08);
            --text-primary: #f5f5f7;
            --text-secondary: #86868b;
            --accent-color: #2997ff;
            --accent-hover: #147ce5;
            --glow-blue: 0 0 40px rgba(41, 151, 255, 0.15);
            --glow-bg: rgba(41, 151, 255, 0.2); 
            --grad-text-1: #2997ff;
            --grad-text-2: #83c0ff;
            --grad-title-1: #ffffff;
            --grad-title-2: #888888;
            --nav-bg: rgba(5, 5, 5, 0.7);
            --card-shadow: 0 10px 30px rgba(0,0,0,0.3);
            --btn-sec-bg: rgba(255, 255, 255, 0.08);
            --btn-sec-hover: rgba(255, 255, 255, 0.15);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: var(--font-main);
            scroll-behavior: smooth;
        }
        html, body {
            max-width: 100vw;
            overflow-x: hidden !important;
        }
        body {
            background-color: var(--bg-color);
            color: var(--text-primary);
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
            transition: background-color 0.4s ease, color 0.4s ease;
        }
        .glass {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            transition: background-color 0.4s ease, border-color 0.4s ease, transform 0.3s ease;
        }
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 20px;
        }
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 100;
            background: var(--nav-bg);
            backdrop-filter: saturate(180%) blur(20px);
            -webkit-backdrop-filter: saturate(180%) blur(20px);
            border-bottom: 1px solid var(--glass-border);
            transition: background-color 0.4s ease;
        }
        .nav-container {
            height: 70px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--grad-title-1) 0%, var(--grad-title-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .logo i { color: var(--accent-color); margin-right: 8px;}
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .theme-toggle {
            background: transparent;
            border: none;
            color: var(--text-secondary);
            font-size: 1.2rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 50%;
            transition: color 0.3s ease, background 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .theme-toggle:hover {
            color: var(--accent-color);
            background: var(--btn-sec-bg);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 980px; 
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            text-align: center;
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: var(--accent-color);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: scale(1.02);
        }
        .btn-secondary {
            background: var(--btn-sec-bg);
            color: var(--text-primary);
            border: 1px solid var(--glass-border);
        }
        .btn-secondary:hover {
            background: var(--btn-sec-hover);
        }
        .text-gradient {
            background: linear-gradient(90deg, var(--grad-text-1) 0%, var(--grad-text-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }
        .text-gradient-title {
            background: linear-gradient(135deg, var(--grad-title-1) 0%, var(--grad-title-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        header {
            padding: 180px 0 100px 0;
            text-align: center;
            position: relative;
        }
        .hero-glow {
            position: absolute;
            top: -20%;
            left: 50%;
            transform: translateX(-50%);
            width: 1000px;
            height: 1000px;
            background: radial-gradient(circle at center, var(--glow-bg) 0%, transparent 60%);
            z-index: -1;
            pointer-events: none;
        }
        header h1 {
            font-size: 4.5rem;
            line-height: 1.1;
            margin-bottom: 25px;
            font-weight: 800;
            letter-spacing: -0.04em;
        }
        header p {
            font-size: 1.25rem;
            color: var(--text-secondary);
            max-width: 750px;
            margin: 0 auto 40px auto;
            font-weight: 400;
        }
        .hero-buttons {
            display: flex;
            gap: 15px;
            justify-content: center;
        }
        .section {
            padding: 100px 0;
            position: relative;
        }
        .section-header {
            text-align: center;
            margin-bottom: 70px;
        }
        .section-header h2 {
            font-size: 3rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 15px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        .feature-card {
            padding: 40px 30px;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-color);
            box-shadow: var(--glow-blue);
        }
        .feature-card i {
            font-size: 2.2rem;
            color: var(--accent-color);
            margin-bottom: 20px;
            display: inline-block;
            filter: drop-shadow(0 0 12px rgba(37, 99, 235, 0.5));
        }
        [data-theme="dark"] .feature-card i {
            filter: drop-shadow(0 0 15px rgba(41, 151, 255, 0.7));
        }
        .feature-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .feature-card p {
            color: var(--text-secondary);
            line-height: 1.6;
            font-size: 1rem;
        }
        .hiw-step {
            display: flex;
            align-items: flex-start;
            gap: 25px;
            margin-bottom: 40px;
            padding: 35px;
        }
        .hiw-icon {
            font-size: 2.2rem;
            color: #ffffff;
            background: linear-gradient(135deg, var(--grad-text-1) 0%, var(--grad-text-2) 100%);
            width: 70px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: none;
            box-shadow: var(--glow-blue);
            flex-shrink: 0;
            font-weight: 800;
        }
        .hiw-text h3 {
            font-size: 1.4rem;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .hiw-text p {
            color: var(--text-secondary);
            font-size: 1.05rem;
        }
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
            align-items: center;
        }
        .pricing-card {
            padding: 45px 35px;
            position: relative;
        }
        .pricing-card.popular {
            border: 2px solid var(--accent-color);
            box-shadow: var(--glow-blue);
            transform: scale(1.05);
        }
        .badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent-color);
            color: white;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .price-header h3 {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 15px;
            font-weight: 600;
            white-space: nowrap;
            letter-spacing: -0.02em;
        }
        .price-val {
            font-size: 3.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.03em;
            margin-bottom: 30px;
        }
        .price-val span { font-size: 1rem; font-weight: normal; color: var(--text-secondary);}
        .pricing-list {
            list-style: none;
            border-top: 1px solid var(--glass-border);
            padding-top: 30px;
        }
        .pricing-list li {
            margin-bottom: 18px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            font-size: 1rem;
        }
        .pricing-list li i {
            color: var(--accent-color);
            margin-right: 12px;
            font-size: 1.2em;
        }
        .cta-section {
            padding: 100px 0;
            text-align: center;
        }
        .cta-box {
            padding: 80px 40px;
            max-width: 800px;
            margin: 0 auto;
            border: 1px solid var(--accent-color);
        }
        .whatsapp-btn {
            background: #25D366;
            color: white;
            font-size: 1.1rem;
            padding: 15px 35px;
            box-shadow: 0 4px 15px rgba(37, 211, 102, 0.2);
        }
        .whatsapp-btn:hover {
            background: #1eb956;
            transform: scale(1.02);
            box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
        }
        .faq-section {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            margin-bottom: 20px;
            border: 1px solid var(--glass-border);
            border-radius: 15px;
            background: var(--glass-bg);
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--accent-color);
            box-shadow: var(--card-shadow);
        }
        .faq-item details {
            width: 100%;
        }
        .faq-item summary {
            padding: 25px;
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after {
            content: "\f067"; 
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--accent-color);
            transition: transform 0.3s ease;
        }
        .faq-item details[open] summary::after {
            content: "\f068"; 
            transform: rotate(180deg);
        }
        .faq-content {
            padding: 0 25px 25px 25px;
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.6;
        }
        footer {
            border-top: 1px solid var(--glass-border);
            padding: 40px 20px;
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 15px;
        }
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: var(--accent-color);
        }
        @media (max-width: 992px) {
            header h1 { font-size: 3.5rem; }
            .section { padding: 80px 0; }
            .grid-3 { grid-template-columns: repeat(2, 1fr); }
            .pricing-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .pricing-card.popular { transform: scale(1); }
        }
        @media (max-width: 768px) {
            .nav-actions .btn-primary { 
                padding: 8px 16px; 
                font-size: 13px; 
            }
            .logo { font-size: 1.2rem; }
            header { padding: 130px 0 60px 0; }
            header h1 { font-size: 2.6rem; }
            header p { font-size: 1.1rem; padding: 0 10px; }
            .hero-glow { width: 100%; top: -10%; }
            .hero-buttons { 
                flex-direction: column; 
                gap: 12px; 
                padding: 0 20px;
            }
            .btn { width: 100%; justify-content: center; }
            .section { padding: 60px 0; }
            .section-header h2 { font-size: 2.2rem; margin-bottom: 10px; }
            .grid-3 { grid-template-columns: 1fr; gap: 20px; }
            .hiw-step { 
                flex-direction: column; 
                text-align: center; 
                align-items: center; 
                padding: 25px 20px;
                gap: 15px;
            }
            .pricing-grid { grid-template-columns: 1fr; }
            .pricing-card { padding: 35px 25px; }
            .price-val { font-size: 3rem; }
            .cta-box { padding: 50px 25px; border-radius: 20px; border-width: 0; background: var(--glass-bg); }
            .cta-section h2 { font-size: 2rem !important; }
        }
        @media (max-width: 480px) {
            header h1 { font-size: 2.2rem; }
            .nav-container { padding: 0 5px; }
            .logo { font-size: 1.05rem; }
            .logo i { margin-right: 4px; }
            .nav-actions { gap: 6px; }
            .theme-toggle { padding: 6px; font-size: 1.1rem; }
            .nav-actions .btn-primary { 
                padding: 6px 12px; 
                font-size: 11px; 
                display: inline-flex; 
            }
        }