/* ========== Reset & Base ========== */
* { box-sizing: border-box; }
body { font-family: Arial, sans-serif; margin: 0; padding: 0; color: #333; }

/* ========== Header ========== */
header { 
    background: #ff6600; 
    color: white; 
    text-align: center; 
    padding: 0; 
    font-size: 28px; 
    position: relative; 
    font-weight: bold; 
}
.header-top {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 20px;
    position: relative;
    min-height: 60px;
}
.header-top h1 {
    margin: 0;
    font-size: 22px;
    font-weight: bold;
    color: white;
}

.header-phone {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    color: #ff6600 !important;
    padding: 8px 14px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 5px;
    text-decoration: none;
    white-space: nowrap;
}
.header-phone-mobile {
    display: none;
}

/* ========== Breadcrumb ========== */
.breadcrumb { 
    background: #f4f4f4; 
    padding: 10px 20px; 
    font-size: 14px; 
}
.breadcrumb a { 
    color: #ff6600; 
    text-decoration: none; 
}

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

/* ========== Typography ========== */
h1 { color: #ff6600; font-size: 32px; margin-bottom: 10px; }
h2 { color: #333; font-size: 26px; margin: 30px 0 20px; }
p { font-size: 16px; line-height: 1.7; margin-bottom: 15px; }
.intro { font-size: 18px; line-height: 1.7; margin-bottom: 30px; }

/* ========== Images ========== */
.hero-img { 
    width: 100%; 
    max-height: 400px; 
    object-fit: cover; 
    border-radius: 10px; 
    margin-bottom: 30px; 
}

/* ========== Service Cards - Detail Pages ========== */
.service-list { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 20px; 
    margin: 30px 0; 
}
.service-list .service-card { 
    border: 1px solid #ddd; 
    border-radius: 10px; 
    padding: 20px; 
    background: #fff; 
    box-shadow: 0 2px 6px rgba(0,0,0,0.06); 
}
.service-list .service-card h3 { 
    color: #ff6600; 
    margin-top: 0; 
    font-size: 20px; 
}
.service-list .service-card p { 
    font-size: 16px; 
    line-height: 1.6; 
    margin: 0; 
}

/* ========== Service Cards - Home Page Grid ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}
.services-grid .service-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 3px 12px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
}
.services-grid .service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.services-grid .service-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}
.service-card-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.service-card-body h3 {
    margin: 0 0 10px;
    color: #ff6600;
    font-size: 20px;
}
.service-card-body h3 a {
    color: #ff6600;
    text-decoration: none;
}
.service-card-body p {
    font-size: 15px;
    line-height: 1.6;
    color: #555;
    flex: 1;
    margin: 0 0 15px;
}
.service-card-link {
    display: inline-block;
    background: #ff6600;
    color: white;
    padding: 8px 16px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 14px;
    font-weight: bold;
    align-self: flex-start;
}
.service-card-link:hover { 
    background: #e55a00; 
}

/* ========== Services Heading ========== */
.services-heading {
    text-align: center;
    color: #333;
    font-size: 28px;
    margin: 20px 0 30px;
}

/* ========== CTA Box ========== */
.cta-box { 
    background: #ff6600; 
    color: white; 
    text-align: center; 
    padding: 30px; 
    border-radius: 10px; 
    margin: 40px 0; 
}
.cta-box h2 { 
    color: white;
    margin: 0 0 15px; 
    font-size: 24px; 
}
.cta-box p { 
    color: white; 
    font-size: 18px; 
    margin: 0 0 15px; 
}
.cta-btn { 
    background: white; 
    color: #ff6600; 
    padding: 15px 30px; 
    font-size: 22px; 
    font-weight: bold; 
    border-radius: 5px; 
    text-decoration: none; 
    display: inline-block; 
}

/* ========== FAQ Section ========== */
.faq { margin: 40px 0; }
.faq h2 { color: #333; font-size: 26px; margin-bottom: 20px; }
.faq-item { border-bottom: 1px solid #eee; padding: 15px 0; }
.faq-item h3 { font-size: 18px; margin: 0 0 8px; color: #333; }
.faq-item p { font-size: 16px; margin: 0; line-height: 1.6; color: #555; }

/* ========== Contact & Phone ========== */
.contact { 
    text-align: center; 
    margin-top: 30px; 
    font-size: 20px; 
    font-weight: bold; 
}
.map { 
    text-align: center; 
    margin-top: 30px; 
}
.phone-highlight {
    background: #ff6600;
    color: white;
    padding: 15px 25px;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    display: inline-block;
    border-radius: 5px;
    text-decoration: none;
    margin-top: 15px;
}
.phone-container { 
    text-align: center; 
    margin-top: 30px; 
}

/* ========== Footer ========== */
footer {
    background-color: #f4f4f4;
    padding: 20px;
    text-align: center;
    margin-top: 40px;
    padding-bottom: 80px;
}
.contact-footer p { 
    margin: 10px 0; 
}
.footer-link {
    color: #ff6600;
    font-size: 20px;
    font-weight: bold;
    text-decoration: none;
}

/* ========== Footer Navigation Bar ========== */
.footer-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #333;
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    z-index: 100;
}
.footer-nav a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    text-align: center;
    flex: 1;
}
.footer-nav a svg {
    display: block;
    margin: 0 auto 4px;
    width: 24px;
    height: 24px;
    fill: white;
}

/* ========== Hamburger Menu ========== */
.hamburger {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    z-index: 200;
}
.hamburger span {
    display: block;
    width: 26px;
    height: 3px;
    background: white;
    border-radius: 3px;
    transition: all 0.3s;
}

/* ========== Navigation Drawer ========== */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 150;
}
.nav-drawer {
    position: fixed;
    top: 0;
    left: -280px;
    width: 260px;
    height: 100%;
    background: white;
    z-index: 160;
    transition: left 0.3s ease;
    box-shadow: 3px 0 15px rgba(0,0,0,0.2);
    overflow-y: auto;
}
.nav-drawer.open { left: 0; }
.nav-overlay.open { display: block; }
.nav-drawer-header {
    background: #ff6600;
    color: white;
    padding: 18px 20px;
    font-size: 18px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}
.nav-drawer a {
    display: block;
    padding: 14px 20px;
    color: #333;
    text-decoration: none;
    font-size: 16px;
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.2s;
}
.nav-drawer a:hover { 
    background: #fff4ee; 
    color: #ff6600; 
}
.nav-drawer a.active { 
    color: #ff6600; 
    font-weight: bold; 
}
.nav-section-label {
    padding: 10px 20px 4px;
    font-size: 12px;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ========== Gioi Thieu Page Specific ========== */
.intro-box { 
    background: #fff8f4; 
    border: 2px solid #ff6600; 
    border-radius: 12px; 
    padding: 25px 30px; 
    margin: 30px 0; 
}
.intro-box p { 
    margin: 0; 
    font-size: 18px; 
    line-height: 1.9; 
}
.stats { 
    display: flex; 
    flex-wrap: wrap; 
    gap: 20px; 
    margin: 30px 0; 
}
.stat-card { 
    flex: 1; 
    min-width: 160px; 
    background: #ff6600; 
    color: white; 
    border-radius: 10px; 
    padding: 20px; 
    text-align: center; 
}
.stat-card .number { 
    font-size: 36px; 
    font-weight: bold; 
    display: block; 
}
.stat-card .label { 
    font-size: 15px; 
    margin-top: 5px; 
    display: block; 
}
.values { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); 
    gap: 16px; 
    margin: 20px 0; 
}
.value-item { 
    background: #f9f9f9; 
    border-radius: 10px; 
    padding: 18px 20px; 
    border-left: 4px solid #ff6600; 
}
.value-item h3 { 
    margin: 0 0 8px; 
    font-size: 17px; 
    color: #ff6600; 
}
.value-item p { 
    margin: 0; 
    font-size: 15px; 
    line-height: 1.6;
}

/* ========== Related Services ========== */
.related-services {
    background: #f9f9f9;
    padding: 40px 20px;
    margin-top: 40px;
}
.related-services h2 {
    text-align: center;
    color: #333;
    font-size: 24px;
    margin-bottom: 30px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.related-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    display: block;
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.related-card h3 {
    color: #ff6600;
    margin: 0 0 10px;
    font-size: 18px;
}
.related-card p {
    color: #666;
    margin: 0;
    font-size: 15px;
}

/* ========== Responsive Design ========== */
@media (max-width: 900px) {
    .services-grid { 
        grid-template-columns: repeat(2, 1fr); 
    }
}

@media (max-width: 768px) {
    h1 { 
        font-size: 26px; 
    }
    h2 { 
        font-size: 22px; 
    }
    iframe { 
        width: 100%; 
    }
    .map { 
        padding: 5px; 
    }
    .stat-card .number { 
        font-size: 28px; 
    }
}

@media (max-width: 600px) {
    .header-top h1 { 
        font-size: 17px; 
        padding: 0 50px; 
    }
    .header-top a { 
        font-size: 16px; 
        padding: 0 50px; 
    }
    .header-phone { 
        display: none; 
    }
    .header-phone-mobile {
        display: block;
        background: white;
        color: #ff6600;
        text-align: center;
        padding: 10px;
        font-size: 18px;
        font-weight: bold;
        text-decoration: none;
        border-top: 1px solid rgba(255,255,255,0.3);
    }
}

@media (max-width: 560px) {
    .services-grid { 
        grid-template-columns: 1fr; 
    }
}