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

:root {
    --primary: #003D82;
    --secondary: #0066CC;
    --accent: #00A3E0;
    --dark: #1A1A1A;
    --gray: #4A4A4A;
    --light-gray: #F5F7FA;
    --white: #FFFFFF;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
}

/* Header Navigation */
header {
    background: var(--white);
    border-bottom: 1px solid #E5E5E5;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: box-shadow 0.3s ease;
}

header.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: -0.5px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 3rem;
    align-items: center;
}

nav ul li a {
    color: var(--dark);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: var(--secondary);
}

.nav-cta {
    background: var(--primary);
    color: var(--white) !important;
    padding: 0.75rem 1.75rem;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.nav-cta:hover {
    background: var(--secondary);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 180px 4rem 120px;
    margin-top: 80px;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: 0.95rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: 2rem;
    letter-spacing: -1px;
}

.hero h1 strong {
    font-weight: 600;
}

.hero-description {
    font-size: 1.35rem;
    line-height: 1.8;
    max-width: 900px;
    margin-bottom: 3rem;
    opacity: 0.95;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.btn {
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1rem;
}

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

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

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

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
}

/* Section Styling */
section {
    padding: 100px 4rem;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 4rem;
}

.section-subtitle {
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--secondary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 300;
    color: var(--dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.section-title strong {
    font-weight: 600;
}

.section-description {
    font-size: 1.2rem;
    color: var(--gray);
    max-width: 900px;
    line-height: 1.8;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background: var(--white);
    border: 1px solid #E5E5E5;
    padding: 3rem 2.5rem;
    transition: all 0.3s ease;
}

.service-card:hover {
    border-color: var(--secondary);
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transform: translateY(-5px);
}

.service-number {
    font-size: 0.85rem;
    color: var(--secondary);
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.service-card p {
    color: var(--gray);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-list {
    list-style: none;
}

.service-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray);
    font-size: 0.95rem;
}

.service-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 600;
}

/* Expertise Section */
.expertise {
    background: var(--light-gray);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-top: 4rem;
}

.expertise-card {
    text-align: center;
    padding: 2rem;
}

.expertise-icon {
    width: 80px;
    height: 80px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
}

.expertise-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark);
}

.expertise-card p {
    color: var(--gray);
    line-height: 1.6;
}

/* Industries Section */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 4rem;
}

.industry-item {
    border: 1px solid #E5E5E5;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    background: var(--white);
}

.industry-item:hover {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.05);
    z-index: 1;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.industry-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.industry-item p {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Training Section */
.training-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.training-card {
    border: 1px solid #E5E5E5;
    padding: 3rem;
    background: var(--white);
    transition: all 0.3s ease;
}

.training-card:hover {
    border-color: var(--secondary);
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.training-card h3 {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

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

.training-features li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--gray);
    line-height: 1.6;
}

.training-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: bold;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
    margin-top: 4rem;
}

.about-text h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--dark);
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--gray);
    line-height: 1.8;
    font-size: 1.05rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-box {
    border-left: 3px solid var(--secondary);
    padding-left: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray);
    font-size: 0.95rem;
}

.about-image {
    background: var(--light-gray);
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
    font-size: 1.1rem;
}

/* Standards Section */
.standards {
    background: var(--dark);
    color: var(--white);
}

.standards .section-subtitle {
    color: var(--accent);
}

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

.standards .section-description {
    color: rgba(255,255,255,0.8);
}

.standards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-top: 4rem;
}

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

.standard-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.standard-item p {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Contact Section */
.contact {
    background: var(--light-gray);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    margin-top: 4rem;
}

.contact-info {
    padding-right: 2rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.contact-item {
    margin-bottom: 2rem;
}

.contact-item h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: var(--gray);
    font-size: 1.05rem;
}

.contact-form {
    background: var(--white);
    padding: 3rem;
    border: 1px solid #E5E5E5;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--dark);
}

input, textarea, select {
    width: 100%;
    padding: 0.9rem;
    border: 1px solid #E5E5E5;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--secondary);
}

textarea {
    resize: vertical;
    min-height: 150px;
}

.submit-btn {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 1rem 3rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    width: 100%;
    transition: background 0.3s ease;
}

.submit-btn:hover {
    background: var(--secondary);
}

/* Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 4rem 4rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-about h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

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

.footer-section h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

.success-message {
    display: none;
    background: #10B981;
    color: white;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
}

/* Responsive Design */
@media (max-width: 1024px) {
    nav {
        padding: 0 2rem;
    }

    section {
        padding: 80px 2rem;
    }

    .hero {
        padding: 150px 2rem 100px;
    }

    .hero h1 {
        font-size: 3.5rem;
    }

    .services-grid,
    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    nav ul {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .services-grid,
    .expertise-grid,
    .industries-grid,
    .training-grid,
    .standards-grid,
    .form-row {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}