/* Reset và Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px 0;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 700;
}

.subtitle {
    font-size: 1.2em;
    opacity: 0.9;
}

/* Main Content */
main {
    background: white;
    margin: 30px auto;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

section {
    margin-bottom: 40px;
}

h2 {
    color: #667eea;
    font-size: 2em;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid #667eea;
}

h3 {
    color: #764ba2;
    font-size: 1.3em;
    margin-top: 20px;
    margin-bottom: 10px;
}

/* Intro Section */
.intro {
    text-align: center;
    padding: 20px 0;
}

.intro p {
    font-size: 1.1em;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

/* Pricing Table */
.pricing-table {
    overflow-x: auto;
}

.table-wrapper {
    overflow-x: auto;
    margin: 20px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin: 20px 0;
}

thead {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 1.1em;
}

td {
    padding: 15px;
    border-bottom: 1px solid #eee;
}

tbody tr:hover {
    background-color: #f8f9ff;
    transition: background-color 0.3s;
}

tbody tr:nth-child(even) {
    background-color: #fafafa;
}

tbody tr:nth-child(even):hover {
    background-color: #f8f9ff;
}

.note {
    margin-top: 15px;
    font-style: italic;
    color: #666;
    font-size: 0.95em;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, #f8f9ff 0%, #e8eaff 100%);
    padding: 30px;
    border-radius: 10px;
    margin: 30px 0;
}

.contact-info {
    display: grid;
    gap: 20px;
}

.contact-item {
    padding: 15px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.contact-item strong {
    color: #667eea;
    display: block;
    margin-bottom: 8px;
    font-size: 1.1em;
}

.phone-link {
    color: #764ba2;
    text-decoration: none;
    font-size: 1.3em;
    font-weight: bold;
    display: inline-block;
    margin-top: 5px;
}

.phone-link:hover {
    color: #667eea;
    text-decoration: underline;
}

address {
    font-style: normal;
    color: #333;
    font-size: 1.1em;
}

/* Services Section */
.service-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.service-list li {
    background: #f8f9ff;
    padding: 15px 20px;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    transition: transform 0.2s, box-shadow 0.2s;
}

.service-list li:hover {
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.service-list li::before {
    content: "✓ ";
    color: #667eea;
    font-weight: bold;
    margin-right: 8px;
}

/* Why Choose Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.feature {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    border-top: 4px solid #667eea;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.2);
}

.feature h3 {
    color: #667eea;
    margin-bottom: 10px;
    font-size: 1.2em;
}

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

/* Policy Page */
.policy-content {
    max-width: 900px;
    margin: 0 auto;
}

.policy-content h1 {
    color: #667eea;
    font-size: 2.5em;
    margin-bottom: 10px;
    text-align: center;
}

.last-updated {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
    font-style: italic;
}

.policy-content article {
    margin-bottom: 40px;
    padding: 25px;
    background: #fafafa;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.policy-content article h2 {
    color: #667eea;
    font-size: 1.5em;
    margin-bottom: 15px;
    border-bottom: 2px solid #667eea;
    padding-bottom: 8px;
}

.policy-content article p {
    margin-bottom: 15px;
    text-align: justify;
    line-height: 1.8;
}

.policy-content ul {
    margin-left: 30px;
    margin-bottom: 15px;
}

.policy-content li {
    margin-bottom: 10px;
    line-height: 1.7;
}

.contact-details {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-top: 15px;
}

.contact-details p {
    margin-bottom: 10px;
}

.contact-details a {
    color: #667eea;
    text-decoration: none;
}

.contact-details a:hover {
    text-decoration: underline;
}

.btn-back {
    display: inline-block;
    padding: 12px 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 30px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-back:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 25px 0;
    margin-top: 50px;
}

footer a {
    color: #ecf0f1;
    text-decoration: none;
}

footer a:hover {
    color: #667eea;
    text-decoration: underline;
}

footer p {
    margin: 5px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }

    .subtitle {
        font-size: 1em;
    }

    main {
        padding: 20px;
        margin: 15px auto;
    }

    h2 {
        font-size: 1.5em;
    }

    table {
        font-size: 0.9em;
    }

    th, td {
        padding: 10px 8px;
    }

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

    .service-list {
        grid-template-columns: 1fr;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .policy-content h1 {
        font-size: 1.8em;
    }

    .policy-content article {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.5em;
    }

    .subtitle {
        font-size: 0.9em;
    }

    main {
        padding: 15px;
    }

    table {
        font-size: 0.8em;
    }

    th, td {
        padding: 8px 5px;
    }

    .phone-link {
        font-size: 1.1em;
    }
}

/* Disclaimer Section */
.disclaimer {
    background: #fff3cd;
    border: 2px solid #ffc107;
    border-radius: 10px;
    padding: 25px;
    margin: 30px 0;
}

.disclaimer h2 {
    color: #856404;
    border-bottom: 2px solid #ffc107;
    margin-bottom: 15px;
}

.disclaimer-content {
    color: #856404;
}

.disclaimer-content p {
    margin-bottom: 10px;
}

.disclaimer-content ul {
    margin-left: 30px;
    margin-bottom: 15px;
}

.disclaimer-content li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.disclaimer-note {
    font-style: italic;
    background: white;
    padding: 15px;
    border-radius: 5px;
    border-left: 4px solid #ffc107;
    margin-top: 15px;
}

/* Print Styles */
@media print {
    header {
        background: #667eea;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .btn-back {
        display: none;
    }

    footer {
        background: #2c3e50;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}