* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header */
.header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #ffd700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #ffd700;
}

.hotline {
    background: #ff4757;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-weight: bold;
    text-decoration: none;
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('home81_640.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 6rem 0;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    font-weight: bold;
}

.hero-subtitle {
    font-size: 1.4rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-fee {
    background: linear-gradient(45deg, #ff4757, #ff6b7a);
    display: inline-block;
    padding: 1.2rem 3rem;
    border-radius: 50px;
    font-size: 1.8rem;
    font-weight: bold;
    margin: 1rem 0;
    box-shadow: 0 6px 20px rgba(255, 71, 87, 0.4);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        box-shadow: 0 6px 20px rgba(255, 71, 87, 0.4);
    }

    to {
        box-shadow: 0 8px 30px rgba(255, 71, 87, 0.6);
    }
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s;
    text-transform: uppercase;
}

.btn-primary {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    color: #333;
}

.btn-secondary {
    background: linear-gradient(45deg, #00d2ff, #3a7bd5);
    color: white;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Services Section */
.services {
    background: white;
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: #1e3c72;
    font-weight: bold;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 4rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    border: 1px solid #e9ecef;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.service-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 71, 87, 0.1), transparent);
    transition: left 0.5s;
}

.service-card:hover:before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #ff4757;
}

.service-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 2rem;
    background: linear-gradient(45deg, #ff4757, #ff6b7a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    box-shadow: 0 10px 30px rgba(255, 71, 87, 0.3);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1e3c72;
}

.service-card p {
    color: #666;
    line-height: 1.8;
}

/* Pricing Section */
.pricing {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 5rem 0;
}

.pricing-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.pricing-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.pricing-features {
    list-style: none;
    margin: 2rem 0;
}

.pricing-features li {
    padding: 1rem 0;
    padding-left: 2rem;
    position: relative;
    font-size: 1.1rem;
}

.pricing-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #ffd700;
    font-weight: bold;
    font-size: 1.3rem;
}

.pricing-table {
    background: white;
    color: #333;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.pricing-header {
    background: linear-gradient(45deg, #1e3c72, #2a5298);
    color: white;
    padding: 2rem;
    text-align: center;
}

.pricing-header h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.pricing-amount {
    font-size: 3rem;
    font-weight: bold;
    color: #ffd700;
}

.pricing-body {
    padding: 2rem;
}

.pricing-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
}

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

.pricing-tier {
    font-weight: 500;
}

.pricing-fee {
    color: #ff4757;
    font-weight: bold;
    font-size: 1.1rem;
}

/* Process Section */
.process {
    background: #f8f9fa;
    padding: 5rem 0;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.step {
    background: white;
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.step-number {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(45deg, #ff4757, #ff6b7a);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    box-shadow: 0 5px 15px rgba(255, 71, 87, 0.3);
}

.step h3 {
    color: #1e3c72;
    margin: 1rem 0;
    font-size: 1.4rem;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s;
}

.contact-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #ffd700;
}

.contact-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.contact-info {
    font-size: 1.1rem;
    font-weight: bold;
    color: #ffd700;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 3rem 0;
}

.footer-content {
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #ffd700;
}

/* Fixed Contact Buttons */
.fixed-contact {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.fixed-contact a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.fixed-contact .phone {
    background: linear-gradient(45deg, #ff4757, #ff6b7a);
}

.fixed-contact .zalo {
    background: linear-gradient(45deg, #0084ff, #44a6ff);
}

.fixed-contact a:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-fee {
        font-size: 1.4rem;
        padding: 1rem 2rem;
    }

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

    .nav-menu {
        display: none;
    }

    .pricing-container {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}