/**
 * THÁM TỬ BÌNH AN - Custom CSS
 * Thiết kế giống ảnh mẫu: màu đỏ, vàng, đen
 * Responsive: desktop, tablet, mobile
 */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    --primary-color: #7f0011;
    --primary-dark: #5a000c;
    --primary-light: #a31527;
    --secondary-color: #ffc107;
    --dark-color: #1a1a1a;
    --dark-light: #2d2d2d;
    --text-color: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #111111;
    --border-color: #e0e0e0;
    --shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    --shadow-dark: 0 10px 40px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
    --font-primary: 'Roboto', sans-serif;
    --header-height: 70px;
}

/* ============================================
   RESET & BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-color);
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

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

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 15px;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 50px;
    font-size: 1.1rem;
}

.section-title span {
    color: var(--primary-color);
}

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-dark { color: var(--dark-color) !important; }
.bg-primary { background-color: var(--primary-color) !important; }
.bg-dark { background-color: var(--dark-color) !important; }
.bg-light { background-color: var(--bg-light) !important; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    gap: 8px;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(127, 0, 17, 0.4);
}

.btn-secondary {
    background: var(--secondary-color);
    color: var(--dark-color);
}

.btn-secondary:hover {
    background: #e6ac00;
    color: var(--dark-color);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-white {
    background: var(--white);
    color: var(--dark-color);
}

.btn-white:hover {
    background: var(--bg-light);
    color: var(--dark-color);
}

.btn-dark {
    background: var(--dark-color);
    color: var(--white);
}

.btn-dark:hover {
    background: var(--dark-light);
    color: var(--white);
}

/* ============================================
   HEADER
   ============================================ */
.header {
    background: var(--white);
    padding: 0px 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-dark);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 80px;
    width: auto;
}

.navbar-nav {
    display: flex;
    gap: 5px;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--dark-color) !important;
    font-weight: 500;
    padding: 10px 18px !important;
    border-radius: 5px;
    transition: var(--transition);
    font-size: 0.95rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color) !important;
    background: rgba(127, 0, 17, 0.08);
}

.btn-header-hotline {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--primary-color);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 600;
    margin-left: 20px;
    animation: pulse 2s infinite;
}

.btn-header-hotline:hover {
    background: var(--primary-dark);
    color: var(--white);
    transform: scale(1.05);
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(127, 0, 17, 0.4); }
    50% { box-shadow: 0 0 0 10px rgba(127, 0, 17, 0); }
}

/* Navbar Toggler */
.navbar-toggler {
    border: none;
    padding: 10px;
    background: var(--dark-color);
    border-radius: 5px;
}

.navbar-toggler-icon {
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 700px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(127, 0, 17, 0.9);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-title span {
    color: var(--secondary-color);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.9;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--secondary-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 5px;
}

/* Hero Slider */
.hero-slider {
    position: relative;
}

.hero-slide {
    position: relative;
    min-height: 600px;
}

.hero-slide-1 {
    background: linear-gradient(135deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.6) 100%),
                url('../images/slider1.jpg') center/cover no-repeat;
}

.hero-slide-2 {
    background: linear-gradient(135deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.6) 100%),
                url('../images/slider2.jpg') center/cover no-repeat;
}

.hero-slide-3 {
    background: linear-gradient(135deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.6) 100%),
                url('../images/slider3.jpg') center/cover no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(127, 0, 17, 0.4) 0%, rgba(0, 0, 0, 0.6) 100%);
}

.hero-carousel .carousel-item {
    min-height: 600px;
}

.hero-carousel .carousel-item > div {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 1200px;
    padding: 0 15px;
}

.hero-carousel .carousel-control-prev,
.hero-carousel .carousel-control-next {
    width: 50px;
    height: 50px;
    background: rgba(127, 0, 17, 0.8);
    top: 50%;
    transform: translateY(-50%);
    opacity: 1;
    border-radius: 50%;
    margin: 0 20px;
}

.hero-carousel .carousel-control-prev:hover,
.hero-carousel .carousel-control-next:hover {
    background: var(--primary-color);
}

.hero-carousel .carousel-indicators {
    bottom: 30px;
}

.hero-carousel .carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin: 0 5px;
    background: rgba(255, 255, 255, 0.5);
    border: none;
}

.hero-carousel .carousel-indicators button.active {
    background: var(--primary-color);
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: 80px 0;
    background: var(--white);
}

.service-card {
    background: var(--white);
    border-radius: 10px;
    padding: 35px 25px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-dark);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(127, 0, 17, 0.4);
}

.service-icon i {
    font-size: 2rem;
    color: var(--white);
}

.service-card h3 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.service-price {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.service-card .btn {
    margin-top: 15px;
    padding: 10px 25px;
    font-size: 0.85rem;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: 80px 0;
    background: var(--bg-light);
}

.about-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 5px solid var(--primary-color);
    border-radius: 10px;
    z-index: -1;
}

.about-content {
    padding-left: 30px;
}

.about-content h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.about-content h2 span {
    color: var(--primary-color);
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 25px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-feature i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq {
    padding: 80px 0;
    background: var(--white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.faq-question {
    width: 100%;
    padding: 20px 25px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--dark-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process {
    padding: 80px 0;
    background: #000000;
    color: var(--white);
}

.process .section-title {
    color: var(--white);
}

.process .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.process-step {
    text-align: center;
    padding: 30px 20px;
    position: relative;
}

.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: 700;
    margin: 0 auto 20px;
}

.step-icon {
    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;
    margin: 0 auto 20px;
}

.process-step h4 {
    color: var(--white);
    margin-bottom: 10px;
}

.process-step p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.process-step::after {
    content: '';
    position: absolute;
    top: 55px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color) 0%, transparent 100%);
}

.process-step:last-child::after {
    display: none;
}

/* ============================================
   CONTACT FORM SECTION
   ============================================ */
.contact-form-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(127, 0, 17, 0.95) 0%, rgba(0, 0, 0, 0.9) 100%),
                url('../images/contact-bg.jpg') center/cover no-repeat fixed;
    color: var(--white);
}

.contact-form-section .section-title {
    color: var(--white);
}

.contact-form-section .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 8px;
    display: block;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(127, 0, 17, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.contact-info {
    padding: 40px;
    color: var(--white);
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-info-item i {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-info-item h4 {
    color: var(--secondary-color);
    font-size: 1rem;
    margin-bottom: 5px;
}

.contact-info-item p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials {
    padding: 80px 0;
    background: var(--bg-light);
}

.testimonial-card {
    background: var(--white);
    padding: 35px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    position: relative;
    height: 100%;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 5rem;
    color: var(--primary-color);
    opacity: 0.1;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-rating {
    margin-bottom: 15px;
}

.testimonial-rating i {
    color: var(--secondary-color);
    font-size: 1rem;
    margin-right: 3px;
}

.testimonial-text {
    color: var(--text-light);
    font-style: italic;
    line-height: 1.8;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
}

.testimonial-info h4 {
    color: var(--dark-color);
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.testimonial-info span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   PARTNERS SECTION
   ============================================ */
.partners {
    padding: 60px 0;
    background: var(--white);
}

.partner-logo {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    transition: var(--transition);
}

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

.partner-logo img {
    max-height: 60px;
    max-width: 100%;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: var(--transition);
}

.partner-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

.partner-logo span {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-light);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: #000000;
    color: var(--white);
}

.footer-top {
    padding: 60px 0;
}

.footer-about {
    margin-bottom: 30px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 20px;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-links h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-color);
}

.footer-links ul {
    padding: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.footer-links a i {
    color: var(--primary-color);
    font-size: 0.7rem;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-contact ul {
    padding: 0;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-contact i {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-top: 3px;
}

.footer-contact span {
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.3);
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    justify-content: flex-end;
    gap: 25px;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer-bottom-links a:hover {
    color: var(--primary-color);
}

/* ============================================
   FLOATING BUTTONS
   ============================================ */
.floating-buttons {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    box-shadow: var(--shadow-dark);
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.float-btn:hover {
    transform: scale(1.1);
    color: var(--white);
}

.float-phone {
    background: var(--primary-color);
    animation: pulse-phone 2s infinite;
}

.float-zalo {
    background: #0068ff;
}

.float-messenger {
    background: #0084ff;
}

.float-top {
    background: var(--dark-color);
    opacity: 0;
    visibility: hidden;
}

.float-top.visible {
    opacity: 1;
    visibility: visible;
}

@keyframes pulse-phone {
    0%, 100% { box-shadow: 0 0 0 0 rgba(127, 0, 17, 0.4); }
    50% { box-shadow: 0 0 0 15px rgba(127, 0, 17, 0); }
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--dark-color) 0%, var(--dark-light) 100%);
    color: var(--white);
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.cta h2 span {
    color: var(--secondary-color);
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.8;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* ============================================
   PAGE HEADING
   ============================================ */
.page-heading {
    background: linear-gradient(135deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.7) 100%),
                url('../images/page-heading-bg.jpg') center/cover no-repeat;
    padding: 120px 0 80px;
    text-align: center;
    color: var(--white);
}

.page-heading h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 10px;
    font-size: 1rem;
    opacity: 0.8;
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.breadcrumb span {
    color: var(--primary-color);
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-page {
    padding: 80px 0;
}

.contact-info-box {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    height: 100%;
    transition: var(--transition);
}

.contact-info-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-dark);
}

.contact-info-box i {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: var(--white);
}

.contact-info-box h4 {
    color: var(--dark-color);
    margin-bottom: 10px;
}

.contact-info-box p {
    color: var(--text-light);
    margin: 0;
}

.contact-info-box a {
    color: var(--primary-color);
    font-weight: 600;
}

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

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-page {
    padding: 80px 0;
}

.about-page-content {
    margin-bottom: 50px;
}

.about-page-content h2 {
    color: var(--dark-color);
    margin-bottom: 20px;
}

.about-page-content p {
    color: var(--text-light);
    line-height: 1.8;
}

.team-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.team-member {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-dark);
}

.team-member img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.team-member-info {
    padding: 25px;
    text-align: center;
}

.team-member-info h4 {
    color: var(--dark-color);
    margin-bottom: 5px;
}

.team-member-info span {
    color: var(--primary-color);
    font-size: 0.9rem;
}

/* ============================================
   PAGE HEADER (Service Detail)
   ============================================ */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 60px 0;
    margin-bottom: 0;
}

.page-header-content {
    text-align: center;
    color: var(--white);
}

.page-header-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--white);
}

.page-header .breadcrumb {
    justify-content: center;
    margin-bottom: 0;
    background: transparent;
    padding: 0;
}

.page-header .breadcrumb-item a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.page-header .breadcrumb-item a:hover {
    color: var(--white);
}

.page-header .breadcrumb-item.active {
    color: var(--secondary-color);
}

.page-header .breadcrumb-item + .breadcrumb-item::before {
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   SERVICE DETAIL PAGE
   ============================================ */
.service-detail-page {
    padding: 60px 0;
    background: var(--bg-light);
}

.service-detail-main {
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.service-detail-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1a365d 100%);
    padding: 40px;
    color: var(--white);
    text-align: center;
}

.service-icon-lg {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
}

.service-detail-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--white);
}

.service-description {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.service-detail-body {
    padding: 40px;
}

.service-detail-body h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin: 30px 0 15px;
    font-weight: 600;
}

.service-detail-body h3:first-child {
    margin-top: 0;
}

.service-detail-body p {
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 15px;
}

.service-detail-body ul, 
.service-detail-body ol {
    padding-left: 25px;
    margin-bottom: 20px;
}

.service-detail-body li {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 8px;
}

.service-detail-body img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 20px 0;
}

.service-share {
    padding: 25px 40px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 15px;
}

.share-label {
    color: var(--text-muted);
    font-weight: 500;
}

.btn-share {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: none;
}

.btn-share.btn-facebook {
    background: #1877f2;
    color: white;
}

.btn-share.btn-zalo {
    background: #0068ff;
    color: white;
    font-weight: 700;
}

.btn-share:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Service Sidebar */
.service-sidebar {
    position: sticky;
    top: 100px;
}

.service-price-card {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #d97706 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    margin-bottom: 20px;
}

.service-price-label {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.service-price-value {
    font-size: 1.8rem;
    font-weight: 700;
}

.service-contact-card {
    background: var(--white);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
}

.service-contact-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--dark-color);
    text-align: center;
}

.btn-block {
    width: 100%;
    padding: 14px 20px;
    font-weight: 600;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.service-contact-card .btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: none;
}

.service-contact-card .btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.service-contact-card .btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* Related Services */
.related-services {
    background: var(--white);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
}

.related-services h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--dark-color);
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.related-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.related-item:last-child {
    border-bottom: none;
}

.related-item i {
    color: var(--primary-color);
    font-size: 0.8rem;
}

.related-item span {
    flex: 1;
    font-weight: 500;
}

.related-item:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

/* ============================================
   RESPONSIVE
   ============================================ */

/* Large Desktop */
@media (max-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

/* Desktop */
@media (max-width: 992px) {
    .container {
        max-width: 960px;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .navbar-collapse {
        position: fixed;
        top: 0;
        left: -100%;
        width: 300px;
        height: 100vh;
        background: var(--dark-color);
        padding: 80px 30px 30px;
        transition: left 0.3s ease;
        z-index: 1001;
        overflow-y: auto;
    }
    
    .navbar-collapse.show {
        left: 0;
    }
    
    .navbar-nav {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-link {
        color: var(--white) !important;
        padding: 15px 0 !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .btn-header-hotline {
        margin: 20px 0 0;
        justify-content: center;
    }
    
    .mobile-menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .mobile-menu-overlay.show {
        opacity: 1;
        visibility: visible;
    }
    
    .about-content {
        padding-left: 0;
        margin-top: 30px;
    }
    
    .about-image::before {
        display: none;
    }
    
    .process-step::after {
        display: none;
    }
    
    .footer-bottom-links {
        justify-content: flex-start;
        margin-top: 15px;
    }
}

/* Tablet */
@media (max-width: 768px) {
    .container {
        max-width: 720px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero {
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .services {
        padding: 60px 0;
    }
    
    .service-card {
        padding: 25px 20px;
    }
    
    .about {
        padding: 60px 0;
    }
    
    .about-image img {
        height: 300px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .faq {
        padding: 60px 0;
    }
    
    .process {
        padding: 60px 0;
    }
    
    .process-step {
        padding: 20px 15px;
    }
    
    .testimonials {
        padding: 60px 0;
    }
    
    .testimonial-card {
        padding: 25px;
    }
    
    .contact-form-section {
        padding: 60px 0;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        padding: 25px;
        margin-top: 30px;
    }
    
    .cta {
        padding: 60px 0;
    }
    
    .cta h2 {
        font-size: 2rem;
    }
    
    .footer-top {
        padding: 40px 0;
    }
    
    .page-heading {
        padding: 100px 0 60px;
    }
    
    .page-heading h1 {
        font-size: 2rem;
    }
}

/* Mobile */
@media (max-width: 576px) {
    .container {
        max-width: 540px;
    }
    
    .header {
        padding: 10px 0;
    }
    
    .logo-img {
        height: 40px;
    }
    
    .hero {
        min-height: 450px;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-badge {
        font-size: 0.8rem;
        padding: 6px 15px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-buttons .btn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .stat-item {
        flex: 1;
        min-width: 80px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        margin-bottom: 30px;
        font-size: 1rem;
    }
    
    .services,
    .about,
    .faq,
    .testimonials,
    .partners {
        padding: 50px 0;
    }
    
    .service-icon {
        width: 60px;
        height: 60px;
    }
    
    .service-icon i {
        font-size: 1.5rem;
    }
    
    .service-card h3 {
        font-size: 1.1rem;
    }
    
    .faq-question {
        font-size: 0.95rem;
        padding: 15px 20px;
    }
    
    .faq-answer {
        padding: 0 20px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 20px 15px;
    }
    
    .process {
        padding: 50px 0;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .process-step h4 {
        font-size: 1rem;
    }
    
    .testimonial-avatar {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .testimonial-info h4 {
        font-size: 1rem;
    }
    
    .contact-form-section {
        padding: 50px 0;
    }
    
    .contact-form {
        padding: 20px;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-control {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
    
    .contact-info {
        padding: 20px;
    }
    
    .contact-info-item i {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .contact-info-item h4 {
        font-size: 0.9rem;
    }
    
    .cta {
        padding: 50px 0;
    }
    
    .cta h2 {
        font-size: 1.5rem;
    }
    
    .cta p {
        font-size: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .floating-buttons {
        right: 15px;
        bottom: 15px;
    }
    
    .float-btn {
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
    
    .footer-top {
        padding: 30px 0;
    }
    
    .footer-logo {
        height: 40px;
    }
    
    .footer-links h4,
    .footer-contact h4 {
        font-size: 1.1rem;
        margin-bottom: 15px;
    }
    
    .footer-bottom {
        text-align: center;
    }
    
    .footer-bottom-links {
        justify-content: center;
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .page-heading {
        padding: 80px 0 50px;
    }
    
    .page-heading h1 {
        font-size: 1.75rem;
    }
    
    .breadcrumb {
        font-size: 0.9rem;
    }
}

/* Small Mobile */
@media (max-width: 380px) {
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-badge {
        font-size: 0.75rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
    
    .service-card {
        padding: 20px 15px;
    }
    
    .service-icon {
        width: 50px;
        height: 50px;
    }
    
    .service-icon i {
        font-size: 1.3rem;
    }
}

/* iPad Specific */
@media (min-width: 768px) and (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .navbar-collapse {
        width: 350px;
    }
    
    .service-card {
        padding: 30px 20px;
    }
}

/* Landscape Mobile */
@media (max-height: 500px) {
    .hero {
        min-height: 350px;
    }
    
    .hero-stats {
        display: none;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 5px; }
.mt-2 { margin-top: 10px; }
.mt-3 { margin-top: 15px; }
.mt-4 { margin-top: 20px; }
.mt-5 { margin-top: 30px; }

.mb-1 { margin-bottom: 5px; }
.mb-2 { margin-bottom: 10px; }
.mb-3 { margin-bottom: 15px; }
.mb-4 { margin-bottom: 20px; }
.mb-5 { margin-bottom: 30px; }

.pt-1 { padding-top: 5px; }
.pt-2 { padding-top: 10px; }
.pt-3 { padding-top: 15px; }
.pt-4 { padding-top: 20px; }
.pt-5 { padding-top: 30px; }

.pb-1 { padding-bottom: 5px; }
.pb-2 { padding-bottom: 10px; }
.pb-3 { padding-bottom: 15px; }
.pb-4 { padding-bottom: 20px; }
.pb-5 { padding-bottom: 30px; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }

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

.lazy-load {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.lazy-load.loaded {
    opacity: 1;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Form Validation */
.is-invalid {
    border-color: #7f0011 !important;
}

.invalid-feedback {
    color: #7f0011;
    font-size: 0.875rem;
    margin-top: 5px;
}

/* Alert */
.alert {
    padding: 15px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Mobile Menu Animation */
.mobile-nav {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.mobile-nav.open {
    transform: translateX(0);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}