:root {
    /* Colors - Modern Professional */
    --color-primary: #1a4d7a;
    /* Professional Blue */
    --color-accent: #f39c12;
    /* Vibrant Orange */
    --color-secondary: #2c5f8d;
    /* Deep Blue */
    --color-text-dark: #2c3e50;
    /* Dark Grey */
    --color-text-light: #5a6c7d;
    /* Medium Grey */
    --color-bg-light: #ffffff;
    --color-bg-alt: #f8f9fa;
    /* Light Grey */
    --color-border: #e1e8ed;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Spacing */
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Transitions */
    --transition-fast: 0.3s ease;
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text-dark);
    background-color: var(--color-bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--color-accent);
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
}

.btn:hover {
    background-color: #e67e22;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4);
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

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

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

/* Fade-in Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Header */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.98);
    padding: 0.8rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid var(--color-border);
}

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

.logo img {
    height: 70px;
    width: auto;
    transition: var(--transition-fast);
}

.desktop-nav ul {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.desktop-nav a {
    color: var(--color-text-dark);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.desktop-nav a:hover {
    color: var(--color-accent);
}

.btn-nav {
    background-color: var(--color-accent);
    color: #ffffff;
    padding: 0.6rem 1.8rem;
    border-radius: 3px;
}

.btn-nav:hover {
    background-color: #e67e22;
    color: #ffffff !important;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-toggle span {
    width: 28px;
    height: 3px;
    background-color: var(--color-primary);
    transition: 0.3s;
}

/* Hero Section */
#hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #ffffff;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(26, 77, 122, 0.7), rgba(26, 77, 122, 0.85));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* Sections General */
.section-header {
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.section-header p {
    color: var(--color-text-light);
    font-size: 1.1rem;
}

.bg-alt {
    background-color: var(--color-bg-alt);
}

.bg-primary {
    background-color: var(--color-primary);
    color: #ffffff;
}

.bg-primary .section-header h2,
.bg-primary .section-header p {
    color: #ffffff;
}

/* About Section */
.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--color-text-dark);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.service-card {
    background: #ffffff;
    padding: 3rem 2rem;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    transition: var(--transition-fast);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(243, 156, 18, 0.2);
}

.service-icon {
    font-size: 3.5rem;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.6rem;
}

.service-desc {
    margin-bottom: 1.5rem;
    color: var(--color-text-light);
    font-size: 1rem;
}

.service-card ul {
    text-align: left;
}

.service-card ul li {
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.8rem;
    font-size: 0.95rem;
    color: var(--color-text-dark);
}

.service-card ul li::before {
    content: '✓';
    color: var(--color-accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Sectors Section */
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.sector-item {
    background: #ffffff;
    padding: 2.5rem 2rem;
    border-left: 4px solid var(--color-accent);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition-fast);
}

.sector-item:hover {
    transform: translateX(8px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.sector-item h3 {
    color: var(--color-primary);
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
}

.sector-item p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* Values Section */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.value-item {
    text-align: center;
    padding: 2rem;
}

.value-icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
}

.value-item h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: #ffffff;
}

.value-item p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
}

.bg-primary .value-item h3 {
    color: #ffffff;
}

.bg-primary .value-item p {
    color: rgba(255, 255, 255, 0.9);
}


/* Gallery Section */
.no-padding {
    padding: 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.gallery-item {
    height: 350px;
    overflow: hidden;
    position: relative;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    text-align: center;
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
}

.feature h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
}

.feature p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Contact Section */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info-box {
    background: #ffffff;
    padding: 3rem;
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.contact-info-box h3 {
    color: var(--color-primary);
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item i {
    color: var(--color-accent);
    font-size: 1.3rem;
    width: 35px;
}

.contact-item a {
    color: var(--color-text-dark);
    transition: var(--transition-fast);
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--color-accent);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 1rem;
    background: #ffffff;
    border: 2px solid var(--color-border);
    color: var(--color-text-dark);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
    border-radius: 4px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-light);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.1);
}

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

.btn-submit {
    align-self: flex-start;
}

/* Footer */
footer {
    background-color: var(--color-primary);
    color: rgba(255, 255, 255, 0.8);
    padding: 3rem 0;
    text-align: center;
}

footer p {
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 1rem;
    }

    .logo img {
        height: 50px;
    }

    .mobile-toggle {
        display: flex;
        z-index: 1001;
    }

    .desktop-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--color-primary);
        padding: 5rem 2rem;
        transition: 0.4s ease;
    }

    .desktop-nav.active {
        right: 0;
    }

    .desktop-nav ul {
        flex-direction: column;
        align-items: flex-start;
    }

    .desktop-nav a {
        color: #ffffff;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .gallery-item {
        height: 250px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .services-grid,
    .sectors-grid,
    .values-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
}