/* ===== LANDING PAGE DỊCH VỤ CHUYÊN NGHIỆP ===== */
/* Phong cách: Hiện đại, Sang trọng, Tinh tế */
/* Phiên bản: 2.0.0 */

/* Biến màu sắc cao cấp */
:root {
    --premium-blue: #0066cc;
    --premium-blue-dark: #0052a3;
    --premium-blue-light: #3399ff;
    --premium-accent: #00a8a8;
    --premium-gold: #d4af37;
    --premium-gray: #f8f9fa;
    --premium-dark: #2c3e50;
    --premium-border: #e0e6ed;
    --shadow-subtle: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-elevated: 0 15px 50px rgba(0, 0, 0, 0.12);
}

/* Hero Section - Nâng cấp */
.landing-hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.landing-hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.05) 0%, transparent 100%);
    clip-path: polygon(100% 0, 100% 100%, 0 100%, 25% 0);
}

.landing-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 102, 204, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 168, 168, 0.02) 0%, transparent 50%);
}

.landing-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-breadcrumb {
    font-size: 0.9rem;
    color: #6c757d;
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.hero-breadcrumb span:last-child {
    color: var(--premium-blue);
    font-weight: 600;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 25px;
    color: var(--premium-dark);
    letter-spacing: -0.5px;
}

.hero-title .highlight {
    color: var(--premium-blue);
    display: block;
    font-size: 3rem;
    margin-top: 10px;
    position: relative;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--premium-blue), transparent);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero Stats - Thiết kế tinh tế */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 50px auto;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--premium-border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-elevated);
    border-color: var(--premium-blue);
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--premium-blue);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-item:hover::before {
    opacity: 1;
}

.stat-item i {
    font-size: 2.5rem;
    color: var(--premium-blue);
    width: 70px;
    height: 70px;
    background: rgba(0, 102, 204, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--premium-dark);
    line-height: 1;
    display: block;
}

.stat-label {
    font-size: 1rem;
    color: #6c757d;
    font-weight: 500;
    margin-top: 5px;
    display: block;
}

/* Hero CTA - Nút bấm sang trọng */
.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 50px;
}

.landing-btn {
    padding: 18px 35px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-width: 220px;
    border: 2px solid transparent;
}

.landing-btn-primary {
    background: linear-gradient(135deg, var(--premium-blue), var(--premium-blue-dark));
    color: white;
    box-shadow: 0 5px 20px rgba(0, 102, 204, 0.3);
}

.landing-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.4);
    background: linear-gradient(135deg, var(--premium-blue-dark), var(--premium-blue));
}

.landing-btn-secondary {
    background: white;
    color: var(--premium-blue);
    border: 2px solid var(--premium-blue);
}

.landing-btn-secondary:hover {
    background: var(--premium-blue);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.2);
}

.landing-btn-large {
    padding: 20px 40px;
    font-size: 1.2rem;
}

/* Services Overview - Card hiện đại */
.services-overview {
    padding: 100px 0;
    background: var(--premium-gray);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--premium-dark);
    margin-bottom: 15px;
}

.section-title .highlight {
    color: var(--premium-blue);
    position: relative;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #6c757d;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.services-overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--premium-border);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-elevated);
    border-color: var(--premium-blue-light);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--premium-blue), var(--premium-accent));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1), rgba(0, 168, 168, 0.1));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
    color: var(--premium-blue);
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, var(--premium-blue), var(--premium-accent));
    color: white;
}

.service-card h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--premium-dark);
    margin-bottom: 15px;
}

.service-card p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 25px;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 25px;
}

.service-tags li {
    background: rgba(0, 102, 204, 0.08);
    color: var(--premium-blue);
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    list-style: none;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--premium-blue);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.service-link:hover {
    gap: 12px;
    color: var(--premium-blue-dark);
}

/* Chi tiết dịch vụ */
.service-detail {
    padding: 100px 0;
    background: white;
}

.service-header {
    text-align: center;
    margin-bottom: 60px;
}

.service-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 102, 204, 0.1);
    color: var(--premium-blue);
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 600;
    margin-bottom: 25px;
}

.service-badge i {
    font-size: 1.2rem;
}

.service-title {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--premium-dark);
    margin-bottom: 20px;
}

.service-title .highlight {
    color: var(--premium-blue);
}

.service-description {
    font-size: 1.2rem;
    color: #6c757d;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.service-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.detail-card {
    background: var(--premium-gray);
    border-radius: 15px;
    padding: 30px;
    border: 1px solid var(--premium-border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.detail-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-subtle);
    border-color: var(--premium-blue);
}

.detail-icon {
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--premium-blue);
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.detail-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--premium-dark);
    margin-bottom: 20px;
}

.detail-list {
    list-style: none;
    margin-bottom: 25px;
}

.detail-list li {
    padding: 10px 0;
    color: #555;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.detail-list li:last-child {
    border-bottom: none;
}

.detail-list i {
    color: var(--premium-accent);
    font-size: 0.9rem;
}

.detail-meta {
    display: flex;
    gap: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--premium-border);
    font-size: 0.95rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #6c757d;
}

.meta-item i {
    color: var(--premium-blue);
}

/* Contact Section - Form sang trọng */
.landing-contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-title {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--premium-dark);
    line-height: 1.2;
    margin-bottom: 20px;
}

.contact-methods {
    margin-top: 40px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: white;
    border-radius: 15px;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--premium-border);
    transition: all 0.3s ease;
}

.contact-method:hover {
    transform: translateX(10px);
    border-color: var(--premium-blue);
}

.contact-method i {
    width: 50px;
    height: 50px;
    background: rgba(0, 102, 204, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--premium-blue);
    flex-shrink: 0;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-elevated);
    border: 1px solid var(--premium-border);
}

.contact-form h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--premium-dark);
    margin-bottom: 30px;
    line-height: 1.3;
}

.form-group {
    margin-bottom: 25px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid var(--premium-border);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--premium-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* Animations tinh tế */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-delay-1 { animation-delay: 0.2s; }
.animate-delay-2 { animation-delay: 0.4s; }
.animate-delay-3 { animation-delay: 0.6s; }

/* Responsive */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-title .highlight {
        font-size: 2.4rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .landing-hero {
        padding: 80px 0;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-title .highlight {
        font-size: 1.8rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .landing-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .services-overview-grid {
        grid-template-columns: 1fr;
    }
    
    .service-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
}