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

:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #e8f0fe;
    --secondary: #0d47a1;
    --accent: #ff6b35;
    --dark: #1a1a2e;
    --gray: #6c757d;
    --gray-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 30px rgba(26,115,232,0.15);
    --radius: 12px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
    overflow-x: hidden;
}

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

ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

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

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 14px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

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

.btn-call:hover {
    background: #e55a2b;
    transform: translateY(-2px);
}

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

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

.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { width: 100%; justify-content: center; }

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow);
}

.header-top {
    background: var(--secondary);
    color: var(--white);
    padding: 8px 0;
    font-size: 13px;
}

.header-top-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-contact-info {
    display: flex;
    gap: 20px;
}

.header-contact-info span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-social {
    display: flex;
    gap: 12px;
}

.header-social a {
    color: var(--white);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    font-size: 12px;
}

.header-social a:hover {
    background: rgba(255,255,255,0.3);
}

/* ===== NAVBAR ===== */
.navbar {
    padding: 12px 0;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    max-width: 200px;
    flex-shrink: 0;
    line-height: 1.2;
}

.logo i {
    font-size: 28px;
}

.logo-img {
    width: auto !important;
    height: 36px !important;
    max-width: 100px !important;
    object-fit: contain !important;
    display: inline-block !important;
    border-radius: 4px;
}

.nav-menu {
    display: flex;
    gap: 2px;
}

.nav-link {
    padding: 8px 10px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 13px;
    color: var(--dark);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.nav-actions .btn {
    padding: 8px 16px;
    font-size: 13px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 3px;
    transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--white) 100%);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: var(--white);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark);
}

.text-primary {
    color: var(--primary);
}

.hero-text p {
    font-size: 17px;
    color: var(--gray);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

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

.stat-item strong {
    display: block;
    font-size: 28px;
    color: var(--primary);
    font-weight: 700;
}

.stat-item span {
    font-size: 13px;
    color: var(--gray);
}

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

.hero-image {
    display: flex;
    justify-content: center;
    position: relative;
}

.hero-slider {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 450px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius);
}

.slider-dots {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 5;
}

.slider-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: var(--transition);
}

.slider-dots .dot.active {
    background: var(--primary);
    transform: scale(1.3);
}

.hero-badge-float {
    position: absolute;
    bottom: 30px;
    left: -20px;
    background: var(--white);
    padding: 12px 20px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: float 3s ease-in-out infinite;
    z-index: 10;
}

.hero-badge-float i {
    color: var(--primary);
    font-size: 24px;
}

.hero-badge-float span {
    font-weight: 600;
    font-size: 14px;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ===== SECTION COMMON ===== */
.section-header {
    text-align: center;
    margin-bottom: 25px;
}

.section-badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 10px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.section-header p {
    font-size: 14px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== PROCESS SECTION ===== */
.process-section {
    padding: 40px 0;
    background: var(--gray-light);
}

.process-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px 20px;
    box-shadow: var(--shadow);
}

.process-step {
    text-align: center;
    flex: 1;
    padding: 0 10px;
}

.step-number {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
}

.step-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
}

.step-icon i {
    font-size: 24px;
    color: var(--primary);
}

.process-step h4 {
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--dark);
    text-transform: uppercase;
}

.process-step p {
    font-size: 12px;
    color: var(--gray);
    line-height: 1.4;
}

.step-arrow {
    display: flex;
    align-items: center;
    padding-top: 55px;
    color: var(--gray);
    font-size: 18px;
    flex-shrink: 0;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 35px 25px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.service-icon {
    width: 65px;
    height: 65px;
    border-radius: 12px;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon i {
    font-size: 26px;
    color: var(--primary);
}

.service-image {
    width: 100%;
    height: 180px;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
}

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

.service-card:hover .service-image img {
    transform: scale(1.05);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 15px;
}

.service-link {
    color: var(--primary);
    font-weight: 500;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.service-link:hover {
    gap: 10px;
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

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

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

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

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: var(--white);
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    transform: translateY(0);
    opacity: 1;
}

.project-category {
    display: inline-block;
    background: var(--primary);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 8px;
}

.project-overlay h4 {
    font-size: 16px;
    margin-bottom: 5px;
}

.project-overlay p {
    font-size: 13px;
    opacity: 0.8;
}

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

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

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

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

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

.testimonial-rating i {
    color: #ffc107;
    font-size: 16px;
}

.testimonial-content {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-avatar i {
    font-size: 30px;
    color: var(--primary);
}

.author-info strong {
    display: block;
    font-size: 15px;
}

.author-info span {
    font-size: 13px;
    color: var(--gray);
}

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

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

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

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

.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-date {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--primary);
    color: var(--white);
    padding: 5px 12px;
    border-radius: 5px;
    font-size: 12px;
}

.news-content {
    padding: 20px;
}

.news-content h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-content p {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    color: var(--primary);
    font-weight: 500;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.news-link:hover {
    gap: 10px;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
}

.contact-form {
    background: var(--white);
    padding: 35px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-row .form-group {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--dark);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--gray-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
    background: var(--white);
}

.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

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

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

/* Contact Info */
.contact-info-card {
    background: var(--primary);
    color: var(--white);
    padding: 35px;
    border-radius: var(--radius);
    height: 100%;
}

.contact-info-card h3 {
    font-size: 22px;
    margin-bottom: 25px;
}

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

.contact-info-item i {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.15);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-item strong {
    display: block;
    font-size: 14px;
    margin-bottom: 3px;
}

.contact-info-item p {
    font-size: 14px;
    opacity: 0.9;
}

.contact-social {
    display: flex;
    gap: 12px;
    margin-top: 25px;
}

.btn-zalo, .btn-hotline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 14px;
}

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

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

.btn-zalo:hover, .btn-hotline:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary);
}

.footer-logo i {
    font-size: 24px;
}

.footer-col p {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    line-height: 1.7;
    margin-bottom: 15px;
}

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

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-col h4 {
    font-size: 17px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary);
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

.footer-contact li i {
    color: var(--primary);
    margin-top: 3px;
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

/* ===== FLOATING BUTTONS ===== */
.floating-buttons {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: var(--transition);
}

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

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

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

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

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

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255,107,53,0.4); }
    70% { box-shadow: 0 0 0 15px rgba(255,107,53,0); }
    100% { box-shadow: 0 0 0 0 rgba(255,107,53,0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-text h1 { font-size: 36px; }
    .hero-image { order: -1; }
    .hero-img-wrapper { max-width: 350px; }
    .step-arrow { font-size: 12px; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .header-top { display: none; }
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 30px 30px;
        box-shadow: -5px 0 20px rgba(0,0,0,0.1);
        transition: var(--transition);
        z-index: 1001;
    }
    .nav-menu.active { right: 0; }
    .nav-actions { display: none; }
    .nav-toggle { display: flex; }
    .hero { padding: 100px 0 60px; min-height: auto; }
    .hero-text h1 { font-size: 30px; }
    .hero-stats { gap: 15px; }
    .stat-item strong { font-size: 22px; }
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; justify-content: center; }
    .section-header h2 { font-size: 28px; }
    .process-grid { grid-template-columns: 1fr 1fr; gap: 15px; }
    .process-steps { flex-wrap: wrap; padding: 20px 15px; gap: 15px; }
    .process-step { flex: 0 0 calc(50% - 10px); max-width: calc(50% - 10px); }
    .step-arrow { display: none; }
    .step-icon { width: 45px; height: 45px; }
    .step-icon i { font-size: 18px; }
    .step-number { width: 24px; height: 24px; font-size: 12px; margin-bottom: 6px; }
    .process-step h4 { font-size: 11px; }
    .process-step p { font-size: 10px; }
    .process-section { padding: 25px 0; }
    .services-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .contact-form { padding: 20px; }
}

@media (max-width: 480px) {
    .container { padding: 0 15px; }
    .hero-text h1 { font-size: 26px; }
    .process-steps { gap: 3px; }
    .process-step { flex: 0 0 calc(50% - 5px); max-width: calc(50% - 5px); }
    .hero-stats { flex-direction: column; gap: 10px; }
    .section-header h2 { font-size: 24px; }
}