:root {
    --primary-blue: #003399;
    --accent-orange: #e8af06;
    --white: #f8fafc;
    --black: #0f172a;
    --industrial-dark: #0f172a;
}

/* Preloader */
#preloader {
    position: fixed;
    inset: 0;
    background: var(--primary-blue);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.loader-truck {
    font-size: 5rem;
    color: var(--white);
    animation: truckDrive 1.5s infinite ease-in-out;
}
@keyframes truckDrive {
    0% { transform: translateX(-30px); opacity: 0; }
    50% { transform: translateX(0); opacity: 1; }
    100% { transform: translateX(30px); opacity: 0; }
}
.loader-bar {
    width: 150px;
    height: 3px;
    background: rgba(255,255,255,0.2);
    margin-top: 20px;
    border-radius: 10px;
    overflow: hidden;
}
.loader-progress {
    height: 100%;
    background: var(--accent-orange);
    width: 0%;
}

/* Smooth Scroll Config */
html.lenis { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
    font-family: 'Inter', sans-serif;
    color: var(--black);
    background-color: var(--white);
    overflow-x: hidden;
}

.heading-style {
    font-family: 'Barlow', sans-serif;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

/* Glassmorphism Navbar */
nav { transition: background 0.4s ease, box-shadow 0.4s ease; }
nav.scrolled {
    background: var(--industrial-dark) !important;
    backdrop-filter: blur(15px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* Floating Contact Widget */
.contact-widget {
    position: fixed;
    bottom: 30px;
    left: 30px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.widget-item {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
}
.widget-item:hover { transform: scale(1.15) rotate(5deg); }
.widget-item.phone { background: var(--accent-orange); }
.widget-item.zalo { background: var(--primary-blue); }

.pulse-ring {
    position: absolute;
    inset: -8px;
    border: 2px solid currentColor;
    border-radius: 50%;
    animation: pulse-ring 2s infinite;
}
@keyframes pulse-ring {
    0% { transform: scale(0.7); opacity: 0.8; }
    100% { transform: scale(1.4); opacity: 0; }
}

/* Progress Bar */
#progress {
    position: fixed;
    top: 0; left: 0; width: 0%; height: 5px;
    background: var(--accent-orange);
    z-index: 1001;
}

/* Back to Top */
#scrollToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s ease;
}
#scrollToTop.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
#scrollToTop:hover { background: var(--accent-orange); }

.industrial-btn {
    background: var(--primary-blue);
    color: var(--white);
    padding: 16px 36px;
    font-weight: 800;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s;
    clip-path: polygon(0 0, 100% 0, 95% 100%, 0 100%);
}
.industrial-btn:hover { background: var(--accent-orange); padding-left: 45px; }

.section-tag {
    background: var(--accent-orange);
    color: var(--white);
    padding: 5px 15px;
    font-weight: 800;
    font-size: 0.7rem;
    text-transform: uppercase;
    margin-bottom: 20px;
    display: inline-block;
    clip-path: polygon(0 0, 100% 0, 85% 100%, 0 100%);
}

.industrial-card {
    border: 1px solid #e2e8f0;
    background: var(--white);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}
.industrial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    border-color: var(--primary-blue);
}
.industrial-card.hover-orange:hover {
    border-color: #e8af06 !important;
}

/* Mobile Menu Specifics */
#mobile-menu {
    transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}
#mobile-menu.translate-x-full {
    transform: translateX(100%);
}
#mobile-menu:not(.translate-x-full) {
    transform: translateX(0);
}

/* Responsive Stat Boxes */
@media (max-width: 768px) {
    .stat-box {
        padding-left: 12px;
    }
    .stat-box h3 {
        font-size: 1.875rem !important; /* text-3xl */
    }
}

/* --- XUÂN TÍN HTML LOGO --- */
.xt-logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1;
    width: 160px; /* Khống chế chiều rộng thực tế */
    color: var(--white);
    cursor: pointer;
}

.xt-brand-name {
    font-size: 26px; /* Size nhỏ thực tế để không bị phantom space */
    font-weight: 900;
    letter-spacing: -1px;
    text-transform: uppercase;
    display: flex;
    align-items: baseline;
    line-height: 1;
    font-family: 'Barlow', sans-serif;
    white-space: nowrap;
    color: var(--white);
}

.xt-accent-yellow { color: var(--accent-orange); }

.xt-letter-a, .xt-letter-i {
    position: relative;
    display: inline-block;
}

.xt-hat {
    position: absolute;
    top: -5px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px;
}

.xt-slash {
    position: absolute;
    top: -5px;
    right: -1px;
    font-size: 25px;
}

.xt-slogan-container {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
    width: 100%;
    gap: 4px;
}

.xt-slogan-text {
    font-size: 8.5px;
    font-weight: 500;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.2px;
    color: rgba(255,255,255,0.7);
}

.xt-line {
    min-width: 40px;
    height: 1px;
    flex: 1;
    background: linear-gradient(to right, transparent, var(--accent-orange));
}

.xt-line.xt-right {
    background: linear-gradient(to left, transparent, var(--accent-orange));
}