.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    margin-bottom: 60px;
}

.hero-section h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.hero-section .lead {
    font-size: 1.4rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

.hero-badges {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.hero-badge {
    background: rgba(255,255,255,0.2);
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

    .section-title h2 {
        font-size: 2.5rem;
        font-weight: 700;
        color: #2d3748;
        margin-bottom: 15px;
    }

    .section-title p {
        font-size: 1.2rem;
        color: #718096;
    }

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.feature-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s ease;
    text-align: center;
}

    .feature-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
        border-color: #667eea;
    }

    .feature-card i {
        font-size: 3rem;
        color: #667eea;
        margin-bottom: 20px;
    }

    .feature-card h4 {
        font-size: 1.3rem;
        font-weight: 700;
        color: #2d3748;
        margin-bottom: 15px;
    }

    .feature-card p {
        color: #718096;
        line-height: 1.6;
        margin: 0;
    }

.specs-section {
    background: #f7fafc;
    padding: 60px 0;
    margin: 60px 0;
}

.spec-item {
    background: white;
    border-left: 4px solid #667eea;
    padding: 20px 25px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

    .spec-item h5 {
        color: #2d3748;
        font-weight: 700;
        margin-bottom: 10px;
        font-size: 1.1rem;
    }

    .spec-item p {
        color: #718096;
        margin: 0;
        line-height: 1.6;
    }

    .spec-item ul {
        margin: 10px 0 0 0;
        padding-left: 20px;
        color: #718096;
    }

        .spec-item ul li {
            margin-bottom: 5px;
        }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.stat-box {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

    .stat-box .number {
        font-size: 3rem;
        font-weight: 800;
        color: #667eea;
        display: block;
        margin-bottom: 10px;
    }

    .stat-box .label {
        color: #718096;
        font-weight: 600;
        text-transform: uppercase;
        font-size: 0.9rem;
    }

.pricing-section {
    padding: 60px 0;
}

.pricing-card {
    background: white;
    border: 3px solid #e2e8f0;
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
    position: relative;
}

    .pricing-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 40px rgba(102, 126, 234, 0.2);
        border-color: #667eea;
    }

    .pricing-card.featured {
        border-color: #667eea;
        border-width: 4px;
        box-shadow: 0 10px 30px rgba(102, 126, 234, 0.15);
    }

        .pricing-card.featured::before {
            content: "RECOMMENDED";
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: #667eea;
            color: white;
            padding: 8px 25px;
            border-radius: 25px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 1px;
        }

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 25px;
    border-bottom: 2px solid #e2e8f0;
}

    .pricing-header h3 {
        font-size: 1.8rem;
        font-weight: 700;
        color: #2d3748;
        margin-bottom: 15px;
    }

    .pricing-header .price {
        font-size: 3.5rem;
        font-weight: 800;
        color: #667eea;
        line-height: 1;
    }

        .pricing-header .price .currency {
            font-size: 1.5rem;
            vertical-align: super;
        }

    .pricing-header .period {
        display: block;
        color: #718096;
        font-size: 1.1rem;
        margin-top: 10px;
    }

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 30px 0;
}

    .pricing-features li {
        padding: 12px 0;
        color: #4a5568;
        font-size: 1.05rem;
        border-bottom: 1px solid #f7fafc;
    }

        .pricing-features li:last-child {
            border-bottom: none;
        }

        .pricing-features li i {
            color: #48bb78;
            margin-right: 12px;
            font-size: 1.1rem;
        }

        .pricing-features li.addon {
            background: #fffaf0;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #fbd38d;
            margin-top: 10px;
        }

            .pricing-features li.addon i {
                color: #ed8936;
            }

.btn-purchase {
    width: 100%;
    padding: 18px;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 10px;
    transition: all 0.3s ease;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

    .btn-purchase:hover {
        transform: scale(1.03);
        box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
        color: white;
    }

.security-checks {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

    .security-checks h4 {
        color: #2d3748;
        font-weight: 700;
        margin-bottom: 20px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .security-checks .platform-badge {
        display: inline-block;
        padding: 5px 12px;
        background: #667eea;
        color: white;
        border-radius: 20px;
        font-size: 0.85rem;
        font-weight: 600;
    }

.checks-table {
    width: 100%;
    margin-top: 15px;
}

    .checks-table td {
        padding: 10px;
        border-bottom: 1px solid #e2e8f0;
        color: #4a5568;
    }

        .checks-table td:first-child {
            font-weight: 600;
            color: #2d3748;
        }

.mitre-badge {
    display: inline-block;
    background: #edf2f7;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: monospace;
    color: #2d3748;
    margin-right: 5px;
}

.warning-box {
    background: #fff5f5;
    border-left: 4px solid #fc8181;
    padding: 20px;
    border-radius: 8px;
    margin: 30px 0;
}

    .warning-box h5 {
        color: #c53030;
        font-weight: 700;
        margin-bottom: 10px;
    }

    .warning-box p {
        color: #742a2a;
        margin: 0;
        line-height: 1.6;
    }

.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 0;
    margin-top: 60px;
    text-align: center;
    border-radius: 16px;
}

    .cta-section h3 {
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 20px;
    }

    .cta-section p {
        font-size: 1.2rem;
        margin-bottom: 30px;
        opacity: 0.95;
    }

    .cta-section .btn {
        padding: 15px 40px;
        font-size: 1.2rem;
        font-weight: 700;
    }

/* Bu ürün sayfasındaki o karanlık kartın tasarımı */
.product-card-secure {
    background: rgba(15, 23, 42, 0.8) !important; /* Daha derin, teknolojik bir lacivert */
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-left: 4px solid #00d2ff !important; /* O mavi çizgiyi daha parlak yapalım */
    padding: 40px !important;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

/* "Security Infrastructure" Üst Başlığı */
.product-category-tag {
    color: #00d2ff !important; /* Neon mavi */
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    font-size: 0.8rem;
    margin-bottom: 15px;
    display: block;
}

/* Ana Başlık (QuickSecure Antivirus) */
.product-title {
    color: #ffffff !important;
    font-size: 2.5rem !important;
    font-weight: 800 !important;
    margin-bottom: 20px;
}

/* Okunmayan o orta metin alanı */
.product-description {
    color: #94a3b8 !important; /* Gözü yormayan Slate grisini kullan */
    line-height: 1.8;
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* Özelliklerin (Cross-Platform vs.) yan yana dizilimi */
.product-features {
    display: flex;
    gap: 20px;
    color: #cbd5e1 !important;
    font-weight: 500;
    margin-bottom: 40px;
    font-size: 0.9rem;
}

.btn-product-plans {
    background: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%) !important;
    color: white !important;
    padding: 15px 35px !important;
    border-radius: 12px !important;
    font-weight: 700 !important;
    text-transform: none; /* Antivirüs ciddiyeti için uppercase'i kaldıralım */
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.3) !important;
    transition: all 0.3s ease;
    border: none;
}

    .btn-product-plans:hover {
        transform: translateY(-3px) scale(1.02);
        box-shadow: 0 10px 30px rgba(0, 210, 255, 0.5) !important;
    }

/* --- PRODUCT MASTER DESIGN SYSTEM --- */
/* 1. Hero Alanını Kurtaralım (Yazılar Boğulmasın) */
.hero-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%) !important;
    padding: 120px 0 80px 0 !important;
    position: relative;
    overflow: hidden;
}

    /* Arka plana çok hafif teknolojik doku (Grid) */
    .hero-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
        background-size: 30px 30px;
        pointer-events: none;
    }

    .hero-section h1 {
        color: #ffffff !important;
        font-weight: 800 !important;
        letter-spacing: -1px;
    }

    .hero-section .lead {
        color: #94a3b8 !important; /* Gözü yormayan açık gri */
        font-weight: 500;
    }

/* 2. Feature ve Stat Kartları (Beyaz zeminde kaybolmasın, Mobilde patlamasın) */
.feature-card, .stat-box, .security-checks {
    background: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
    border-radius: 20px !important;
    box-shadow: 0 10px 25px rgba(0,0,0,0.03) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

    .feature-card:hover {
        transform: translateY(-10px);
        border-color: #3b82f6 !important;
        box-shadow: 0 20px 40px rgba(59, 130, 246, 0.1) !important;
    }

/* 3. SHAI HULUD ALANI (Kritik Alan: Okunabilirlik Sıfırdı) */
/* Sol taraftaki renkli kutu */
[style*="background: linear-gradient(135deg, #fc5c7d 0%, #6a82fb 100%)"] {
    border-radius: 24px !important;
    box-shadow: 0 20px 40px rgba(252, 92, 125, 0.2);
}

/* Sağ taraftaki beyaz kutu (Yazılar siyah kalmıştı, netleştirelim) */
[style*="border: 3px solid #fc5c7d"] {
    border: 2px solid #fc5c7d !important;
    border-radius: 24px !important;
    background: #ffffff !important;
}

/* 4. PRICING CARDS (Satın Alma Alanı) */
.pricing-card {
    border-radius: 24px !important;
    background: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
}

    .pricing-card.featured {
        border: 2px solid #667eea !important;
        transform: scale(1.05);
        z-index: 5;
    }

.btn-purchase {
    border-radius: 14px !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

/* 5. TEKNİK TABLOLAR (Windows/Linux/macOS Listeleri) */
.checks-table td {
    border-bottom: 1px solid #f1f5f9 !important;
    padding: 12px !important;
    font-size: 0.95rem;
}

.mitre-badge {
    background: #f8fafc !important;
    color: #475569 !important;
    border: 1px solid #e2e8f0 !important;
    font-weight: 600 !important;
}

/* 6. MOBILE FRIENDLY FIXES (Telefonlar İçin) */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2.2rem !important;
    }

    .pricing-card.featured {
        transform: none !important; /* Mobilde taşmasın */
        margin: 20px 0;
    }

    .row > div {
        margin-bottom: 20px; /* Kartlar birbirine yapışmasın */
    }

    .hero-badges {
        gap: 8px;
    }

    .hero-badge {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
}