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

:root {
    --primary-color: #E60012;
    --primary-dark: #B8000E;
    --secondary-color: #0066CC;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-light: #F5F5F5;
    --white: #FFFFFF;
    --border-color: #E0E0E0;
    --success-color: #28A745;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.logo p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.hotline-header .hotline-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--white);
    color: var(--primary-color);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.95rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.hotline-header .hotline-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.phone-icon {
    font-size: 1rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 4rem 0;
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content {
    text-align: left;
}

.hero-slider {
    text-align: center;
    position: relative;
}

.slider-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.slide {
    display: none;
    width: 100%;
}

.slide.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

.slide img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 15px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.8);
    color: var(--primary-color);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 10;
    transition: background 0.3s, transform 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: var(--white);
    transform: translateY(-50%) scale(1.1);
}

.slider-btn.prev {
    left: 15px;
}

.slider-btn.next {
    right: 15px;
}

.slider-dots {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s, transform 0.3s;
}

.dot.active,
.dot:hover {
    background: var(--white);
    transform: scale(1.2);
}

.hero-title {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    font-weight: bold;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.feature-icon {
    font-size: 1.5rem;
}

.cta-button {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: bold;
    transition: background 0.3s, transform 0.3s;
    box-shadow: var(--shadow);
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Section Styles */
section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* Promotion Section */
.promotion {
    background: var(--bg-light);
}

.promotion-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.promo-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 2px solid transparent;
    position: relative;
}

.promo-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.promo-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.promo-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: bold;
}

.promo-card.highlight h3 {
    color: var(--white);
}

.promo-description {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 500;
    line-height: 1.6;
}

.promo-card.highlight .promo-description {
    color: var(--white);
}


.promo-card.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
}

.promo-card.highlight .promo-icon {
    filter: brightness(1.2);
}

.promo-card.highlight h3 {
    color: var(--white);
}

.promo-card p {
    margin-bottom: 0.5rem;
}

.promo-card .note {
    font-size: 0.85rem;
    opacity: 0.8;
    margin-top: 1rem;
    color: var(--text-light);
}

.promo-card.highlight .note {
    color: rgba(255, 255, 255, 0.9);
}

.promotion-note {
    text-align: center;
    color: var(--text-light);
    font-style: italic;
}

/* Process Section */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    text-align: center;
    padding: 0;
    background: var(--white);
    border-radius: 10px;
    transition: transform 0.3s;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.step-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.step-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.step-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    border: 4px solid var(--white);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.step h3,
.step p {
    padding: 1.5rem 1.5rem 2rem;
}

.step h3 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.step:hover {
    transform: translateY(-5px);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step h3 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.step p {
    color: var(--text-light);
}

/* Packages Section */
.packages {
    background: var(--white);
}

.packages.combo {
    background: var(--bg-light);
}

.packages.business {
    background: var(--white);
}

.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.package-card {
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 0;
    text-align: center;
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
    overflow: hidden;
}

.package-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--bg-light);
}

.package-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.package-card:hover .package-image img {
    transform: scale(1.1);
}

.package-card h3,
.package-card .package-speed,
.package-card .package-price,
.package-card .package-features {
    padding: 0 1.5rem;
}

.package-card h3 {
    padding-top: 1.5rem;
    margin-bottom: 1rem;
}

.package-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.package-card.featured {
    border-color: var(--primary-color);
    border-width: 3px;
}

.badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
}

.package-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.package-speed {
    font-size: 1.2rem;
    color: var(--secondary-color);
    font-weight: bold;
    margin-bottom: 1rem;
}

.package-price {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.package-price span {
    font-size: 1rem;
    font-weight: normal;
    color: var(--text-light);
}

.package-features {
    list-style: none;
    text-align: left;
    margin-top: 1.5rem;
}

.package-features li {
    padding: 0.5rem 0;
    color: var(--text-dark);
}

.package-note {
    text-align: center;
    color: var(--text-light);
    font-size: 0.95rem;
    margin-top: 1rem;
}

/* Combo Benefits */
.combo-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.benefit-icon {
    font-size: 2rem;
}

.combo-subtitle {
    font-size: 1.5rem;
    text-align: center;
    margin: 3rem 0 2rem;
    color: var(--text-dark);
}

.combo-card {
    border-color: var(--secondary-color);
}

.price-note {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 0.5rem;
    line-height: 1.5;
}

.meshcb1-benefits {
    margin: 3rem 0 2rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 10px;
}

.meshcb1-benefits h4 {
    text-align: center;
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.benefit-box {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.benefit-box:hover {
    transform: translateY(-5px);
}

.benefit-box .benefit-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 1rem;
}

.benefit-box h5 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.benefit-box p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

.meshcb1-promo {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.meshcb1-promo h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.meshcb1-promo ul {
    list-style: none;
    margin-left: 0;
}

.meshcb1-promo li {
    padding: 0.5rem 0;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border-color);
}

.meshcb1-promo li:last-child {
    border-bottom: none;
}

/* Business Section Image */
.business-image {
    margin-bottom: 3rem;
    text-align: center;
}

.section-header-image {
    width: 100%;
    max-width: 1000px;
    height: auto;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

/* Business Table */
.business-table-wrapper {
    overflow-x: auto;
    margin-bottom: 2rem;
}

.business-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    box-shadow: var(--shadow);
    border-radius: 10px;
    overflow: hidden;
}

.business-table thead {
    background: var(--primary-color);
    color: var(--white);
}

.business-table th,
.business-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.business-table th {
    font-weight: bold;
}

.business-table tbody tr:hover {
    background: var(--bg-light);
}

.business-table tbody tr:last-child td {
    border-bottom: none;
}

.business-promo {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.business-promo ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.business-promo li {
    margin-bottom: 0.5rem;
}

/* Documents Section */
.documents {
    background: var(--bg-light);
}

.documents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.doc-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.doc-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.doc-card ul {
    margin-left: 1.5rem;
}

.doc-card li {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--secondary-color), #0052A3);
    color: var(--white);
}

.contact-content {
    text-align: center;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.contact-method {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.contact-method h3 {
    margin-bottom: 1rem;
}

.contact-phone {
    display: inline-block;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
    text-decoration: none;
    margin: 1rem 0;
    padding: 0.5rem 1.5rem;
    background: var(--primary-color);
    border-radius: 50px;
    transition: transform 0.3s;
}

.contact-phone:hover {
    transform: scale(1.05);
}

.commitment {
    margin-top: 2rem;
    text-align: left;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 10px;
}

.commitment h3 {
    margin-bottom: 1rem;
}

.commitment ul {
    list-style: none;
}

.commitment li {
    margin-bottom: 0.5rem;
}

/* Disclaimer Section */
.disclaimer {
    background: var(--bg-light);
    padding: 3rem 0;
}

.disclaimer-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
    line-height: 1.8;
}

.disclaimer-content p {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.disclaimer-content p strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

.disclaimer-warning {
    background: #fff3cd;
    border: 2px solid #ffc107;
    border-left: 5px solid #ff9800;
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 2rem;
}

.disclaimer-warning p {
    margin-bottom: 0.75rem;
}

.disclaimer-warning p:last-child {
    margin-bottom: 0;
}

.disclaimer-warning strong {
    color: #ff6f00;
    font-size: 1.1rem;
}

.disclaimer-note {
    margin-top: 2rem;
    padding: 1rem;
    background: rgba(230, 0, 18, 0.1);
    border-left: 4px solid var(--primary-color);
    font-style: italic;
    color: var(--text-dark);
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin-bottom: 0.5rem;
    display: block;
}

.footer-section a:hover {
    color: var(--white);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.6);
}

.footer-brand {
    margin-bottom: 1rem;
}

.footer-brand h3 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.footer-contact-info {
    margin-bottom: 1rem;
}

.footer-contact-info a {
    color: var(--white);
    font-size: 1.1rem;
    text-decoration: none;
}

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

/* Floating Action Buttons */
.floating-buttons {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.floating-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    color: var(--white);
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: var(--shadow-hover);
    transition: transform 0.3s, box-shadow 0.3s;
    animation: pulse 2s infinite;
}

.floating-phone {
    background: var(--primary-color);
}

.floating-zalo {
    background: #0084FF;
    animation: pulseZalo 2s infinite;
}

.floating-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
}

.floating-btn .btn-icon {
    font-size: 1.3rem;
}

.floating-btn .btn-text {
    font-weight: bold;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(230, 0, 18, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(230, 0, 18, 0.7);
    }
}

@keyframes pulseZalo {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(0, 132, 255, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(0, 132, 255, 0.7);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        text-align: center;
    }
    
    .slider-btn {
        width: 35px;
        height: 35px;
        font-size: 1.2rem;
    }
    
    .slider-btn.prev {
        left: 10px;
    }
    
    .slider-btn.next {
        right: 10px;
    }
    
    .dot {
        width: 10px;
        height: 10px;
    }

    .hero-title {
        font-size: 1.5rem;
        line-height: 1.4;
    }
    
    .logo h1 {
        font-size: 1rem;
    }
    
    .hotline-header .hotline-btn {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

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

    .promotion-cards {
        grid-template-columns: 1fr;
    }

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

    .business-table {
        font-size: 0.9rem;
    }

    .business-table th,
    .business-table td {
        padding: 0.75rem 0.5rem;
    }

    .floating-buttons {
        bottom: 20px;
        right: 20px;
        gap: 10px;
    }

    .floating-btn .btn-text {
        display: none;
    }

    .floating-btn {
        width: 60px;
        height: 60px;
        border-radius: 50%;
        padding: 0;
        justify-content: center;
        align-items: center;
    }

    .floating-btn .btn-icon {
        font-size: 1.5rem;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .hotline-header .hotline-btn {
        font-size: 1rem;
        padding: 0.6rem 1.2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    section {
        padding: 2.5rem 0;
    }

}