:root {
    --bg-white: #ffffff;
    --bg-light: #f9f9f9;
    --text-main: #333333;
    --text-light: #666666;
    --accent-orange: #f27a22;
    --accent-orange-hover: #da6b1a;
    --accent-green: #00d23a;
    --accent-green-hover: #00b332;
    --accent-green-light: #e6f9ec;
    --bg-dark-card: #4b4b4b;
    --bg-footer: #f2f2f2;
    --font-main: 'Inter', sans-serif;
    --border-radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; min-width: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
    font-family: var(--font-main);
    background-color: var(--bg-white);
    color: var(--text-main);
    overflow-x: hidden;
}
.wrapper { background-color: var(--bg-white); width: 100%; overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.bg-light { background-color: var(--bg-light); }
.center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1rem;
    border: none;
}
.btn-primary { background-color: var(--accent-orange); color: white; }
.btn-primary:hover { background-color: var(--accent-orange-hover); }
.btn-primary-green { background-color: var(--accent-green); color: white; }
.btn-primary-green:hover { background-color: var(--accent-green-hover); }
.btn-outline {
    background-color: transparent;
    color: var(--accent-orange);
    border: 2px solid var(--accent-orange);
}
.btn-outline:hover {
    background-color: var(--accent-orange-hover);
    color: white;
    border-color: var(--accent-orange-hover);
}
.btn-white { background-color: white; color: var(--text-main); }
.btn-white:hover { background-color: #f0f0f0; }
.btn-block { display: block; width: 100%; }

/* Header */
header {
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.98);
    z-index: 1000;
    border-bottom: 1px solid #eaeaea;
}
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo-area img { width: auto; height: 96px; max-width: 220px; object-fit: contain; }
.main-nav ul { list-style: none; display: flex; gap: 3rem; }
.main-nav a { text-decoration: none; color: var(--text-main); font-weight: 600; transition: color 0.3s; }
.main-nav a:hover { color: var(--accent-orange); }

/* Section Headers */
section { padding: 5rem 0; }
.section-header { margin-bottom: 3.5rem; }
.tagline {
    color: var(--accent-green);
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}
.section-header h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 1rem; }
.section-header p { color: var(--text-light); max-width: 600px; margin: 0 auto; }

/* Hero */
.hero-inner { display: flex; align-items: center; gap: 4rem; }
.hero-content { flex: 1; }
.hero-content h1 { font-size: 3rem; font-weight: 800; line-height: 1.2; margin-bottom: 2rem; }
.hero-buttons { display: flex; gap: 1rem; }
.hero-image { flex: 1.2; display: flex; justify-content: flex-end; }
.hero-image img { width: 100%; max-width: 600px; }

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
    max-width: 820px;
}
.feature-card {
    border: 2px solid var(--accent-green);
    border-radius: var(--border-radius);
    padding: 2.5rem 1.5rem;
    text-align: center;
    transition: transform 0.3s ease;
}
.feature-card:hover { transform: translateY(-5px); }
.feature-icon {
    width: 60px; height: 60px;
    background-color: var(--accent-green-light);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1.5rem;
}
.icon-text { color: var(--accent-green); font-size: 1.8rem; font-weight: bold; }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 1rem; }
.feature-card p { font-size: 0.9rem; color: var(--text-light); }

/* Projects */
.projects-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.project-info-card {
    background-color: var(--bg-dark-card);
    border-radius: var(--border-radius);
    padding: 2.5rem 1.5rem;
    color: white;
    display: flex; flex-direction: column;
    justify-content: center; align-items: center; text-align: center;
}
.project-info-card h2 { font-size: 2rem; margin-bottom: 1rem; }
.project-card { position: relative; border-radius: var(--border-radius); overflow: hidden; height: 300px; }
.project-card img { width: 100%; height: 100%; object-fit: cover; }
.project-caption {
    position: absolute; bottom: 1rem; left: 1rem; right: 1rem;
    background: white; padding: 1rem; border-radius: 8px; text-align: center;
}
.project-caption h4 { font-size: 0.95rem; margin-bottom: 0.2rem; }
.project-caption p { font-size: 0.8rem; color: var(--text-light); }

/* About Us */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.accordion-item {
    background: var(--bg-light); padding: 1.5rem;
    border-radius: 8px; margin-bottom: 1rem;
    cursor: pointer; transition: background 0.3s;
}
.accordion-item.active { background: white; border: 1px solid #ddd; }
.accordion-item h4 { display: flex; justify-content: space-between; align-items: center; font-size: 1.1rem; }
.accordion-item h4 span { color: var(--accent-green); }
.accordion-item p { margin-top: 1rem; color: var(--text-light); display: none; line-height: 1.6; }
.accordion-item.active p { display: block; }
.about-image img { width: 100%; border-radius: var(--border-radius); }

/* Services Grid */
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; text-align: center; }
.service-icon {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    background-color: var(--accent-green-light);
    color: var(--accent-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0 auto 1rem;
}
.service-item h4 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.service-item p { font-size: 0.9rem; color: var(--text-light); }

/* Why Us */
.why-us-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.why-us-image img { width: 100%; border-radius: var(--border-radius); }
.list-item { display: flex; gap: 1.5rem; margin-bottom: 2rem; }
.list-item .number { font-size: 1.5rem; font-weight: 800; color: var(--accent-green); flex-shrink: 0; }
.list-item h4 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.list-item p { color: var(--text-light); font-size: 0.95rem; }

/* Statistics */
.stats-wrapper { position: relative; }
.stats-bg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; opacity: 0.8; }
.stats-bg-grid img { width: 100%; height: 400px; object-fit: cover; border-radius: var(--border-radius); filter: brightness(0.6); }
.stats-cards-grid {
    position: absolute; top: 50%; left: 0; right: 0;
    transform: translateY(-50%);
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem; padding: 0 2rem;
}
.stat-card {
    background: white; padding: 2.5rem;
    border-radius: var(--border-radius); text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.stat-card h3 { font-size: 2.5rem; color: var(--accent-orange); margin-bottom: 0.5rem; }
.stat-card h4 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.stat-card p { color: var(--text-light); font-size: 0.9rem; }

/* Certifications */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.cert-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}
.cert-logo {
    width: 100px;
    height: 100px;
    max-width: 100px;
    max-height: 100px;
    object-fit: contain;
    margin-bottom: 1.5rem;
    border-radius: 8px;
}
.cert-card h4 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    color: var(--text-main);
}
.cert-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* Contact Form */
.contact-form-wrapper {
    background-color: var(--accent-green-light);
    padding: 4rem; border-radius: var(--border-radius);
    max-width: 700px; margin: 0 auto;
}
.contact-form input, .contact-form textarea {
    width: 100%; padding: 1rem; margin-bottom: 1rem;
    border: 1px solid #ddd; border-radius: 8px; font-family: inherit;
}

/* Footer */
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 3rem; margin-bottom: 3rem; }
.footer-logo { height: 90px; margin-bottom: 1.5rem; }
.footer-brand p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; }
.footer-links h4, .footer-newsletter h4 { font-size: 1.1rem; margin-bottom: 1.5rem; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 0.8rem; }
.footer-links a { color: var(--text-light); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--accent-orange); }
.footer-newsletter p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 1rem; }
.newsletter-form { display: flex; }
.newsletter-form input { flex: 1; padding: 0.8rem; border: 1px solid #ddd; border-radius: 4px 0 0 4px; }
.newsletter-form button { border-radius: 0 4px 4px 0; }
.footer-bottom {
    display: flex; justify-content: space-between;
    padding-top: 2rem; border-top: 1px solid #ddd;
    color: var(--text-light); font-size: 0.85rem;
}
.footer-bottom-links a { color: var(--text-light); text-decoration: none; margin-left: 1rem; }

/* Policy Pages */
.policy-header {
    background: var(--bg-white);
    border-bottom: 1px solid #eaeaea;
    padding: 1rem 0;
}
.policy-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.policy-logo {
    height: 78px;
    object-fit: contain;
}
.back-link {
    color: var(--accent-orange);
    font-weight: 700;
    text-decoration: none;
}
.back-link:hover { color: var(--accent-orange-hover); }
.policy-content {
    max-width: 860px;
    margin: 0 auto;
    padding: 4rem 2rem 5rem;
    line-height: 1.75;
}
.policy-content h1 {
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}
.effective-date {
    display: block;
    color: var(--text-light);
    margin-bottom: 2rem;
}
.intro-text {
    color: var(--text-light);
    border-left: 4px solid var(--accent-orange);
    padding-left: 1.25rem;
    margin-bottom: 2.5rem;
}
.policy-content h2 {
    font-size: 1.35rem;
    margin: 2.25rem 0 0.75rem;
}
.policy-content p { color: var(--text-light); margin-bottom: 1rem; }
.policy-content a {
    color: var(--accent-orange);
    font-weight: 600;
    text-decoration: none;
}
.policy-content a:hover { text-decoration: underline; }
.contact-box {
    background: var(--bg-light);
    border: 1px solid #eaeaea;
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 1rem;
}
.policy-footer {
    background: var(--bg-footer);
    border-top: 1px solid #ddd;
    color: var(--text-light);
    font-size: 0.9rem;
    padding: 1.5rem;
    text-align: center;
}
.policy-footer a {
    color: var(--accent-orange);
    text-decoration: none;
    font-weight: 600;
}

/* Responsive */

/* Tablet */
@media (max-width: 1024px) {
    .features-grid,
    .services-grid    { grid-template-columns: repeat(2, 1fr); }
    .cert-grid        { grid-template-columns: repeat(3, 1fr); }
    .projects-grid    { grid-template-columns: repeat(2, 1fr); }
    .about-grid,
    .why-us-grid      { grid-template-columns: 1fr; gap: 2.5rem; }
    .stats-bg-grid    { grid-template-columns: 1fr; }
    .stats-cards-grid { position: static; transform: none; padding: 0; margin-top: 1.5rem; }
    .footer-grid      { grid-template-columns: 1fr 1fr; }
}

/* Mobile */
@media (max-width: 768px) {

    section            { padding: 3rem 0; }
    .container         { padding: 0 1.25rem; }
    .section-header    { margin-bottom: 2rem; }
    .section-header h2 { font-size: 1.6rem; }

    /* Header */
    header             { padding: 0.75rem 0; }
    .logo-area img     { height: 80px; }
    .main-nav          { display: none; }
    .btn-header        { display: none; }

    /* Hero */
    .hero-inner        { flex-direction: column; gap: 2rem; text-align: center; }
    .hero-content h1   { font-size: 1.7rem; line-height: 1.25; margin-bottom: 1.5rem; }
    .hero-buttons      { justify-content: center; flex-wrap: wrap; gap: 0.75rem; }
    .hero-image        { justify-content: center; width: 100%; }
    .hero-image img    { width: 100%; }

    /* Features */
    .features-grid     { grid-template-columns: 1fr !important; gap: 1rem; }
    .feature-card      { padding: 1.5rem 1rem; }

    /* Projects */
    .projects-grid     { grid-template-columns: 1fr !important; gap: 1.25rem; }
    .project-info-card { padding: 2rem 1.25rem; }
    .project-card      { height: 230px; }

    /* About */
    .about-grid        { grid-template-columns: 1fr !important; gap: 2rem; }
    .about-image       { order: -1; }
    .about-image img   { width: 100%; max-height: 220px; object-fit: cover; }

    /* Services */
    .services-grid     { grid-template-columns: 1fr !important; gap: 1rem; }

    /* Certifications */
    .cert-grid         { grid-template-columns: 1fr !important; gap: 1.25rem; }
    .cert-card         { padding: 2rem 1.25rem; }

    /* Why Us */
    .why-us-grid       { grid-template-columns: 1fr !important; gap: 2rem; }
    .why-us-image img  { width: 100%; max-height: 220px; object-fit: cover; }
    .list-item         { gap: 1rem; }

    /* Stats */
    .stats-bg-grid     { grid-template-columns: 1fr !important; gap: 0.75rem; }
    .stats-bg-grid img { height: 130px; }
    .stats-cards-grid  {
        position: static !important;
        transform: none !important;
        padding: 0;
        grid-template-columns: 1fr !important;
        gap: 1rem;
        margin-top: 1.5rem;
    }
    .stat-card         { padding: 1.5rem; }
    .stat-card h3      { font-size: 2rem; }

    /* Contact */
    .contact-form-wrapper { padding: 2rem 1.25rem; }

    /* Footer */
    .footer-grid       { grid-template-columns: 1fr !important; gap: 2rem; margin-bottom: 2rem; }
    .footer-logo       { height: 70px; }
    .newsletter-form   { flex-direction: column; gap: 0.75rem; }
    .newsletter-form input  { border-radius: 4px; }
    .newsletter-form button { border-radius: 4px; width: 100%; }
    .footer-bottom     { flex-direction: column; align-items: center; gap: 0.75rem; text-align: center; }
    .footer-bottom-links a  { margin: 0 0.5rem; }
    .policy-header-inner { gap: 1rem; }
    .policy-logo { height: 58px; }
    .policy-content { padding: 3rem 1.25rem; }
    .policy-content h1 { font-size: 1.8rem; }
}

/* Extra small */
@media (max-width: 400px) {
    .hero-content h1   { font-size: 1.4rem; }
    .features-grid     { grid-template-columns: 1fr !important; }
    .services-grid     { grid-template-columns: 1fr !important; }
}