:root {
    --primary-blue: #0047AB;
    --primary-light: #2A6BCE;
    --primary-dark: #002B66;
    --accent-color: #FFB800;
    --text-main: #2D3748;
    --text-muted: #718096;
    --bg-light: #F7FAFC;
    --white: #FFFFFF;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Header & Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-dark);
}

.nav-brand img {
    height: 40px;
    border-radius: 8px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    padding: 5px 0;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-blue);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-blue);
    border-radius: 2px;
}

/* Page Header / Banner */
.page-header {
    margin-top: 70px;
    padding: 60px 5%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
}

.page-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    margin-top: 70px;
    min-height: 75vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: -100px;
    right: -100px;
    filter: blur(50px);
}

.hero-content {
    max-width: 800px;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    margin-left: 10px;
}

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

/* Sections */
.section {
    padding: 70px 5%;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 40px;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: var(--white);
    padding: 35px 25px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.03);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: var(--primary-light);
}

.service-icon {
    font-size: 2.8rem;
    color: var(--primary-blue);
    margin-bottom: 18px;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--primary-dark);
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 40px auto 0;
}

.about-card {
    background: var(--white);
    padding: 30px;
    border-radius: 14px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.04);
    text-align: center;
}

.about-card i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.about-card h3 {
    font-size: 1.15rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

/* Contact Grid & Form */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.contact-info-card {
    background: var(--white);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.04);
}

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

.contact-info-item i {
    font-size: 1.4rem;
    color: var(--primary-blue);
    margin-top: 3px;
}

.contact-info-item h4 {
    font-size: 1rem;
    color: var(--primary-dark);
    margin-bottom: 3px;
}

.contact-info-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.contact-form-card {
    background: var(--white);
    padding: 35px;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.04);
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0,71,171,0.1);
}

/* Footer */
footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: 60px 5% 30px;
    text-align: center;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: left;
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.footer-col p, .footer-col a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    margin-bottom: 10px;
    display: block;
}

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

.footer-bottom {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
}

.footer-bottom a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Responsive */
@media (max-width: 900px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .page-header h1 {
        font-size: 2.2rem;
    }

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


/* Gallery Grid for Masonry */
.gallery-grid {
    max-width: 1200px;
    margin: 0 auto;
}

.gallery-sizer,
.gallery-item {
    width: calc(33.333% - 14px); /* 3 columns with 20px gaps */
    margin-bottom: 20px;
}

.gallery-gutter {
    width: 20px;
}

@media (max-width: 900px) {
    .gallery-sizer,
    .gallery-item {
        width: calc(50% - 10px); /* 2 columns */
    }
}

@media (max-width: 600px) {
    .gallery-sizer,
    .gallery-item {
        width: 100%; /* 1 column */
    }
    .gallery-gutter {
        width: 0;
    }
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    cursor: pointer;
    background-color: var(--white);
}

.gallery-item img {
    width: 100%;
    display: block;
    height: auto;
    transition: transform 0.4s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 43, 102, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-overlay i {
    color: white;
    font-size: 2.5rem;
    transform: scale(0.5);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item:hover .gallery-overlay i {
    transform: scale(1);
}

/* Lightbox Modal */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.5);
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.lightbox-close:hover {
    color: var(--accent-color);
}