/* ===================================
   GLOBAL STYLES & VARIABLES
   =================================== */
:root {
    --primary-color: #D4AF37;  /* Gold */
    --secondary-color: #1B4D89; /* Navy Blue */
    --accent-color: #FF6B35;    /* Orange for CTA */
    --text-dark: #333333;
    --text-light: #666666;
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-dark: #1a1a1a;
    --border-color: #E0E0E0;
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   HEADER STYLES
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--bg-white);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    gap: 20px;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-menu li a {
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
    padding: 5px 0;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--secondary-color);
}

.header-cta {
    display: flex;
    align-items: center;
    gap: 15px;
}

.hotline-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--secondary-color);
    color: white;
    border-radius: 5px;
    font-weight: 600;
    transition: var(--transition);
}

.hotline-btn:hover {
    background: #153a6b;
    transform: translateY(-2px);
}

.cta-btn {
    padding: 12px 25px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cta-btn:hover {
    background: #c19b2a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(27,77,137,0.95) 0%, rgba(13,47,84,0.95) 100%),
                url('../images/blog-cnc-technology.jpg') center/cover;
    padding-top: 100px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23D4AF37" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,112C1248,107,1344,117,1392,122.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    opacity: 0.5;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(27,77,137,0.9) 0%, rgba(13,47,84,0.8) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.badge-group {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.badge {
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    display: inline-block;
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 48px;
    font-weight: 800;
    color: white;
    line-height: 1.3;
    margin-bottom: 30px;
    animation: fadeInUp 1s ease;
}

.hero-title .highlight {
    display: block;
    font-size: 28px;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 10px;
}

.hero-features {
    margin: 30px 0 40px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 15px;
    color: white;
    font-size: 18px;
    animation: fadeInLeft 1.2s ease;
}

.feature-item i {
    color: var(--primary-color);
    font-size: 20px;
    margin-top: 3px;
    flex-shrink: 0;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    animation: fadeInUp 1.4s ease;
}

.btn {
    padding: 15px 35px;
    border-radius: 5px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.btn-primary:hover {
    background: #c19b2a;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(212,175,55,0.4);
}

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

.btn-secondary:hover {
    background: var(--bg-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

/* ===================================
   SECTION COMMON STYLES
   =================================== */
.section-header {
    margin-bottom: 60px;
}

.section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 15px;
}

.text-center .section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 18px;
    margin-top: 10px;
}

.section-description {
    max-width: 900px;
    margin: 0 auto;
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-light);
}

.section-description p {
    margin-bottom: 15px;
}

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

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

.usp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.usp-card {
    background: white;
    padding: 35px 25px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.usp-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.usp-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 22px;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.usp-card p {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.6;
}

/* ===================================
   SERVICES SECTION
   =================================== */
.services-section {
    padding: 80px 0;
}

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

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

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

.service-icon {
    font-size: 60px;
    margin-bottom: 25px;
    text-align: center;
}

.service-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 22px;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 20px;
    text-align: center;
}

.service-features {
    margin-bottom: 25px;
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--text-light);
}

.service-features li i {
    color: var(--primary-color);
    margin-top: 3px;
    flex-shrink: 0;
}

.service-price {
    text-align: center;
    padding-top: 20px;
    border-top: 2px solid var(--bg-light);
    font-size: 16px;
    color: var(--text-dark);
    font-weight: 500;
}

.service-price .price {
    color: var(--accent-color);
    font-size: 24px;
    font-weight: 700;
    display: block;
    margin-top: 5px;
}

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

.pricing-table-wrapper {
    overflow-x: auto;
    margin: 40px 0;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.pricing-table {
    width: 100%;
    background: white;
    border-collapse: collapse;
    min-width: 800px;
}

.pricing-table thead {
    background: var(--secondary-color);
    color: white;
}

.pricing-table th {
    padding: 20px 15px;
    text-align: left;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 16px;
}

.pricing-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.pricing-table tbody tr:hover {
    background: #fffbf0;
}

.pricing-table td {
    padding: 18px 15px;
    font-size: 15px;
}

.pricing-table td:first-child {
    font-weight: 600;
    color: var(--secondary-color);
}

.price-highlight {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 17px;
}

.pricing-notes {
    background: white;
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
    margin: 30px 0;
}

.pricing-notes h4 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-notes ul {
    list-style: disc;
    padding-left: 25px;
}

.pricing-notes ul li {
    margin-bottom: 10px;
    color: var(--text-light);
}

.pricing-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 40px;
}

/* ===================================
   PROCESS SECTION
   =================================== */
.process-section {
    padding: 80px 0;
}

.process-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: 30px;
    margin-bottom: 50px;
    position: relative;
}

.process-step::before {
    content: '';
    position: absolute;
    left: 35px;
    top: 70px;
    width: 2px;
    height: calc(100% + 50px);
    background: var(--primary-color);
}

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

.step-number {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(212,175,55,0.3);
}

.step-content {
    flex: 1;
    background: white;
    padding: 25px 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.step-content:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-hover);
}

.step-content h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
}

.step-content ul {
    list-style: none;
}

.step-content ul li {
    padding-left: 25px;
    position: relative;
    margin-bottom: 10px;
    color: var(--text-light);
}

.step-content ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

.step-content strong {
    color: var(--accent-color);
}

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

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: white;
    padding: 35px 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.advantage-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 20px;
}

.advantage-card ul {
    list-style: none;
}

.advantage-card ul li {
    padding-left: 25px;
    position: relative;
    margin-bottom: 10px;
    color: var(--text-light);
}

.advantage-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

/* ===================================
   MATERIALS SECTION
   =================================== */
.materials-section {
    padding: 80px 0;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.material-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    border: 3px solid var(--primary-color);
    text-align: center;
    transition: var(--transition);
}

.material-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

.material-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.material-card h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.material-card ul {
    text-align: left;
    list-style: disc;
    padding-left: 25px;
}

.material-card ul li {
    margin-bottom: 10px;
    color: var(--text-light);
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

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

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

.project-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    color: white;
}

.project-card h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    font-size: 18px;
    font-weight: 700;
    padding: 20px 20px 10px;
}

.project-card p {
    color: var(--text-light);
    padding: 0 20px 20px;
    font-size: 14px;
}

.projects-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* ===================================
   TESTIMONIALS SECTION
   =================================== */
.testimonials-section {
    padding: 80px 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: white;
    padding: 35px 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary-color);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.rating {
    margin-bottom: 20px;
}

.rating i {
    color: #FFD700;
    font-size: 18px;
    margin-right: 3px;
}

.testimonial-text {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 25px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.testimonial-author strong {
    color: var(--secondary-color);
    font-size: 17px;
}

.testimonial-author span {
    color: var(--text-light);
    font-size: 14px;
}

/* ===================================
   COMMITMENTS SECTION
   =================================== */
.commitments-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #0d2f54 100%);
    color: white;
}

.commitments-section .section-title {
    color: white;
}

.commitments-section .text-center .section-title::after {
    background: var(--primary-color);
}

.commitments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.commitment-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 35px 25px;
    border-radius: 10px;
    text-align: center;
    border: 2px solid rgba(212,175,55,0.3);
    transition: var(--transition);
}

.commitment-card:hover {
    background: rgba(255,255,255,0.15);
    border-color: var(--primary-color);
    transform: translateY(-8px);
}

.commitment-card i {
    font-size: 50px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.commitment-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
}

.commitment-card p {
    font-size: 15px;
    line-height: 1.6;
}

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

.comparison-table-wrapper {
    overflow-x: auto;
    margin: 40px 0;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.comparison-table {
    width: 100%;
    background: white;
    border-collapse: collapse;
    min-width: 700px;
}

.comparison-table thead {
    background: var(--secondary-color);
    color: white;
}

.comparison-table th {
    padding: 20px 15px;
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 16px;
}

.comparison-table th.highlight-col {
    background: var(--primary-color);
}

.comparison-table tbody tr {
    border-bottom: 1px solid var(--border-color);
}

.comparison-table td {
    padding: 20px 15px;
    text-align: center;
    font-size: 15px;
}

.comparison-table td:first-child {
    text-align: left;
    font-weight: 600;
}

.comparison-table td.highlight-col {
    background: #fffbf0;
    color: var(--secondary-color);
    font-weight: 600;
}

.comparison-table td.highlight-col i {
    color: var(--primary-color);
    margin-right: 8px;
    font-size: 18px;
}

/* ===================================
   FAQ SECTION
   =================================== */
.faq-section {
    padding: 80px 0;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    background: var(--bg-light);
    transition: var(--transition);
}

.faq-question:hover {
    background: #f0f0f0;
}

.faq-question h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.faq-question i {
    color: var(--primary-color);
    font-size: 20px;
    transition: var(--transition);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    padding: 0 30px;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    padding: 0 30px 25px;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 15px;
}

.faq-answer ul {
    list-style: disc;
    padding-left: 25px;
}

.faq-answer ul li {
    margin-bottom: 10px;
    color: var(--text-light);
}

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

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    margin-top: 40px;
}

.contact-info {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    height: fit-content;
}

.contact-info h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.info-item i {
    font-size: 24px;
    color: var(--primary-color);
    margin-top: 5px;
    flex-shrink: 0;
}

.info-item strong {
    display: block;
    color: var(--secondary-color);
    font-size: 16px;
    margin-bottom: 5px;
}

.info-item p {
    color: var(--text-light);
    line-height: 1.6;
}

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

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

.contact-form {
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.contact-form iframe {
    width: 100%;
    min-height: 800px;
    border: none;
}

/* ===================================
   MAP SECTION
   =================================== */
.map-section {
    padding: 80px 0;
}

.map-container {
    margin-top: 40px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map-container iframe {
    width: 100%;
    height: 450px;
    border: none;
}

/* ===================================
   BLOG SECTION
   =================================== */
.blog-section {
    padding: 80px 0;
    background: var(--bg-white);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

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

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

.blog-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.blog-card:hover .blog-image img {
    transform: scale(1.1);
}

.blog-category {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-content {
    padding: 25px;
}

.blog-content h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card:hover .blog-content h3 {
    color: var(--primary-color);
}

.blog-excerpt {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.blog-meta span {
    color: var(--text-light);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.blog-meta i {
    color: var(--primary-color);
}

.blog-read-more {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.blog-read-more:hover {
    color: var(--primary-color);
    gap: 12px;
}

.blog-cta {
    text-align: center;
    margin-top: 40px;
}

/* ===================================
   BROCHURE DOWNLOAD SECTION
   =================================== */
.brochure-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #0d2f54 100%);
    color: white;
}

.brochure-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
    align-items: center;
}

.brochure-content {
    display: flex;
    gap: 30px;
}

.brochure-icon {
    font-size: 80px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.brochure-text h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.brochure-text p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 25px;
    opacity: 0.9;
}

.brochure-features {
    list-style: none;
}

.brochure-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 15px;
}

.brochure-features i {
    color: var(--primary-color);
    font-size: 18px;
}

.brochure-form {
    background: white;
    padding: 40px 35px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    text-align: center;
}

.brochure-form h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 15px;
}

.brochure-desc {
    color: var(--text-color);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 30px;
}

.btn-large {
    padding: 18px 50px;
    font-size: 18px;
    font-weight: 700;
    box-shadow: 0 5px 20px rgba(212, 175, 55, 0.4);
    transition: all 0.3s ease;
}

.btn-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
}

.btn-large i {
    margin-right: 10px;
    font-size: 20px;
}

.form-note {
    color: var(--text-light);
    font-size: 13px;
    margin-top: 20px;
}

.form-note i {
    color: var(--primary-color);
    margin-right: 5px;
}

/* ===================================
   KEYWORDS SECTION
   =================================== */
.keywords-section {
    padding: 60px 0;
    background: var(--bg-light);
}

.keywords-section h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--secondary-color);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 25px;
}

.keywords-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.keywords-grid a {
    background: white;
    padding: 12px 20px;
    border-radius: 5px;
    color: var(--text-dark);
    font-size: 14px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.keywords-grid a:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--bg-dark);
    color: #aaa;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    max-width: 180px;
    margin-bottom: 20px;
    background: white;
    padding: 10px;
    border-radius: 5px;
}

.footer-col p {
    line-height: 1.8;
    margin-bottom: 20px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    transition: var(--transition);
}

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

.footer-col h4 {
    color: white;
    font-family: 'Montserrat', sans-serif;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.footer-col ul li i {
    color: var(--primary-color);
    margin-top: 3px;
    flex-shrink: 0;
}

.footer-col ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 30px;
    text-align: center;
}

.footer-bottom a {
    color: var(--primary-color);
    font-weight: 600;
}

/* ===================================
   FLOATING BUTTONS
   =================================== */
.floating-buttons {
    position: fixed;
    right: 20px;
    bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.float-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.float-btn span {
    position: absolute;
    right: 70px;
    background: inherit;
    padding: 10px 15px;
    border-radius: 5px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(10px);
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.float-btn:hover span {
    opacity: 1;
    transform: translateX(0);
}

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

.call-btn {
    background: #25D366;
}

.zalo-btn {
    background: #0068FF;
}

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

.scroll-top-btn {
    position: fixed;
    right: 20px;
    bottom: 250px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--secondary-color);
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 998;
}

.scroll-top-btn.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top-btn:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===================================
   RESPONSIVE STYLES
   =================================== */
@media (max-width: 1024px) {
    .header-content {
        flex-wrap: wrap;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-title .highlight {
        font-size: 24px;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 1024px) {
    .brochure-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .brochure-content {
        flex-direction: column;
        text-align: center;
    }
    
    .brochure-icon {
        font-size: 60px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .brochure-text h2 {
        font-size: 24px;
    }
    
    .brochure-form {
        padding: 25px 20px;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        padding: 30px;
        box-shadow: var(--shadow);
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .header-cta {
        width: 100%;
        justify-content: space-between;
    }
    
    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-title .highlight {
        font-size: 20px;
    }
    
    .feature-item {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .usp-grid,
    .services-grid,
    .advantages-grid,
    .materials-grid,
    .projects-grid,
    .testimonials-grid,
    .commitments-grid {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        flex-direction: column;
    }
    
    .process-step::before {
        left: 35px;
        top: 70px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .floating-buttons {
        right: 15px;
        bottom: 15px;
    }
    
    .float-btn {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .float-btn span {
        display: none;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .logo img {
        height: 40px;
    }
    
    .hero-title {
        font-size: 26px;
    }
    
    .hero-title .highlight {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .hotline-btn span {
        display: none;
    }
    
    .cta-btn {
        font-size: 13px;
        padding: 10px 18px;
    }
}

/* ===================================
   MODAL POPUP
   =================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    overflow-y: auto;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

/* Blog Modal Specific Styles */
.blog-modal .modal-content {
    max-width: 900px;
}

.blog-modal-body {
    padding: 40px;
    max-height: calc(90vh - 80px);
    overflow-y: auto;
}

.blog-modal-body h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 36px;
    color: var(--secondary-color);
    margin-bottom: 20px;
    line-height: 1.3;
}

.blog-modal-body .blog-meta-info {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.blog-modal-body .blog-meta-info span {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 15px;
}

.blog-modal-body .blog-meta-info i {
    color: var(--primary-color);
}

.blog-modal-body .featured-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 30px;
}

.blog-modal-body h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 28px;
    color: var(--secondary-color);
    margin: 30px 0 15px;
    font-weight: 700;
}

.blog-modal-body h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 22px;
    color: var(--secondary-color);
    margin: 25px 0 15px;
    font-weight: 600;
}

.blog-modal-body p {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.blog-modal-body ul, .blog-modal-body ol {
    margin: 20px 0;
    padding-left: 30px;
}

.blog-modal-body li {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.blog-modal-body strong {
    color: var(--secondary-color);
    font-weight: 600;
}

.blog-modal-body .highlight-box {
    background: #fffbf0;
    border-left: 4px solid var(--primary-color);
    padding: 20px 25px;
    margin: 25px 0;
    border-radius: 5px;
}

.blog-modal-body .highlight-box p {
    margin-bottom: 10px;
}

.blog-modal-body .highlight-box p:last-child {
    margin-bottom: 0;
}

.blog-modal-body .cta-box {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #0d2f54 100%);
    color: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    margin: 40px 0;
}

.blog-modal-body .cta-box h3 {
    color: white;
    margin-top: 0;
}

.blog-modal-body .cta-box .btn {
    margin-top: 15px;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 15px;
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
    animation: slideDown 0.4s ease;
    position: relative;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 2px solid var(--border-color);
    background: var(--secondary-color);
    border-radius: 15px 15px 0 0;
}

.modal-header h2 {
    font-family: 'Montserrat', sans-serif;
    color: white;
    font-size: 24px;
    font-weight: 700;
    margin: 0;
}

.modal-close {
    background: transparent;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-body {
    padding: 0;
    overflow-y: auto;
    flex: 1;
}

.modal-body iframe {
    width: 100%;
    height: 800px;
    border: none;
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Modal Styles */
@media (max-width: 768px) {
    .modal {
        padding: 10px;
    }
    
    .modal-content {
        max-width: 100%;
        max-height: 95vh;
        border-radius: 10px;
    }
    
    .modal-header {
        padding: 20px;
        border-radius: 10px 10px 0 0;
    }
    
    .modal-header h2 {
        font-size: 20px;
    }
    
    .modal-body iframe {
        height: 600px;
    }
}

@media (max-width: 480px) {
    .modal-header h2 {
        font-size: 18px;
    }
    
    .modal-body iframe {
        height: 500px;
    }
    
    .blog-modal-body {
        padding: 20px;
    }
    
    .blog-modal-body h1 {
        font-size: 26px;
    }
    
    .blog-modal-body h2 {
        font-size: 22px;
    }
    
    .blog-modal-body h3 {
        font-size: 19px;
    }
    
    .blog-modal-body .featured-image {
        height: 250px;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }