body {
    font-family: "Segoe UI", sans-serif;
    margin: 0;
    background-color: #f9f8ff;
    color: #333;
}

nav {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

nav a:hover {
    text-decoration: underline;
}

.cart-badge {
    position: relative;
    display: inline-block;
}

.cart-badge sup {
    position: absolute;
    top: -10px;
    right: -10px;
    background: #ff4757;
    color: white;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
}

/* Banner */
.page-banner {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    text-align: center;
    padding: 60px 20px;
}

.page-banner h1 {
    font-size: 42px;
    margin: 0 0 10px;
}

.page-banner p {
    font-size: 18px;
    margin: 0;
    opacity: 0.9;
}

/* Container */
.container {
    max-width: 1200px;
    margin: -40px auto 60px;
    padding: 0 20px;
}

/* Quick Info Cards */
.quick-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.info-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.2);
}

.info-card i {
    font-size: 48px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 15px;
}

.info-card h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
}

.info-card p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

/* Main Content */
.content-wrapper {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 30px;
    margin-top: 40px;
}

/* Sidebar Navigation */
.sidebar {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.sidebar h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #667eea;
}

.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar li {
    margin-bottom: 12px;
}

.sidebar a {
    color: #666;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s;
    font-size: 14px;
}

.sidebar a:hover,
.sidebar a.active {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.sidebar a i {
    font-size: 16px;
}

/* Content Section */
.main-content {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.section {
    margin-bottom: 50px;
    scroll-margin-top: 100px;
}

.section h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 3px solid #667eea;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section h3 {
    font-size: 22px;
    color: #667eea;
    margin: 25px 0 15px;
}

.section p {
    font-size: 15px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 15px;
}

.section ul,
.section ol {
    margin: 15px 0;
    padding-left: 25px;
}

.section li {
    font-size: 15px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 10px;
}

/* Highlight Box */
.highlight-box {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-left: 4px solid #667eea;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

.highlight-box h4 {
    font-size: 18px;
    color: #667eea;
    margin-bottom: 10px;
}

.highlight-box p {
    margin: 0;
}

/* Warning Box */
.warning-box {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

.warning-box h4 {
    font-size: 18px;
    color: #856404;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.warning-box p,
.warning-box ul {
    color: #856404;
    margin: 0;
}

/* Success Box */
.success-box {
    background: #d4edda;
    border-left: 4px solid #28a745;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

.success-box h4 {
    font-size: 18px;
    color: #155724;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.success-box p {
    color: #155724;
    margin: 0;
}

/* Table */
.warranty-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.warranty-table thead {
    background: linear-gradient(90deg, #667eea, #764ba2);
    color: white;
}

.warranty-table th,
.warranty-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.warranty-table th {
    font-weight: 600;
}

.warranty-table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

.warranty-table td:first-child {
    font-weight: 500;
    color: #667eea;
}

/* Process Steps */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.step {
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    position: relative;
    transition: all 0.3s;
}

.step:hover {
    border-color: #667eea;
    transform: translateY(-5px);
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 15px;
}

.step h4 {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}

.step p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

/* Contact CTA */
.contact-cta {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    margin-top: 50px;
}

.contact-cta h3 {
    font-size: 26px;
    margin-bottom: 15px;
}

.contact-cta p {
    font-size: 16px;
    margin-bottom: 25px;
    opacity: 0.95;
}

.contact-cta .btn-group {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-contact {
    display: inline-block;
    background: white;
    color: #667eea;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.btn-contact:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Responsive */
@media (max-width: 968px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .page-banner h1 {
        font-size: 32px;
    }

    .main-content {
        padding: 25px;
    }
}