/* CSS Variables & Global Reset (Preserved) */
:root {
    --primary-color: #000033;
    /* Deep Blue */
    --accent-color: #00FFFF;
    /* Bright Electric Cyan */
    --text-color: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --bg-dark: #000022;
    --glass-bg: rgba(0, 0, 51, 0.85);
    /* Slightly darker for better contrast */
    --glass-border: rgba(0, 255, 255, 0.1);
    --font-main: 'Montserrat', sans-serif;
    --font-accent: 'Raleway', sans-serif;
    --transition-speed: 0.3s;
    --radius-md: 8px;
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

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

/* REUSABLE UTILITIES */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

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

section {
    padding: 100px 0;
    min-height: fit-content;
}

.section-title {
    font-family: var(--font-accent);
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* NAVIGATION */
#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 1px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    filter: drop-shadow(0 0 5px var(--accent-color));
}

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

.nav-links a {
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links a:hover {
    color: var(--accent-color);
    text-shadow: 0 0 8px var(--accent-color);
}

/* HERO SECTION */
.hero-section {
    height: 100vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 51, 0.3), rgba(0, 0, 51, 0.9));
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 20px;
    animation: fadeIn 1s ease-out;
}

.hero-content h1 {
    font-size: 4.5rem;
    font-family: var(--font-accent);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 4px;
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.4);
}

.hero-content .subtitle {
    font-size: 1.5rem;
    margin-bottom: 40px;
    color: var(--text-secondary);
    font-weight: 300;
}

.cta-button {
    display: inline-block;
    padding: 14px 35px;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    font-family: var(--font-main);
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--accent-color);
    color: var(--primary-color);
    box-shadow: 0 0 25px rgba(0, 255, 255, 0.4);
}

/* HIGHLIGHTS SECTION */
.highlight-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    text-align: center;
}

.highlight-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 20px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s;
}

.highlight-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
}

.highlight-card img {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

.highlight-card h3 {
    margin-bottom: 15px;
    color: var(--accent-color);
}

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

/* PORTFOLIO SECTION */
.filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    padding: 8px 16px;
    font-family: var(--font-main);
    transition: 0.3s;
    border-bottom: 2px solid transparent;
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 1/1;
    cursor: pointer;
}

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

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

.gallery-item .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    transform: translateY(100%);
    transition: transform 0.3s;
}

.gallery-item:hover .overlay {
    transform: translateY(0);
}

.gallery-item.hidden {
    display: none;
}

/* Used by JS filtering */

/* SERVICES SECTION */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-dark);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: 0.3s;
}

.service-card:hover {
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.1);
    border-color: var(--accent-color);
}

.service-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-info {
    padding: 25px;
}

.service-info h3 {
    color: var(--accent-color);
    margin-bottom: 10px;
}

.service-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ABOUT SECTION */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image img {
    border-radius: var(--radius-md);
    box-shadow: -10px 10px 0 var(--accent-color);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-secondary);
}

/* BLOG SECTION */
.blog-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.blog-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    /* Horizontal card */
}

.blog-card img {
    width: 40%;
    object-fit: cover;
}

.blog-content {
    padding: 25px;
    width: 60%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-content h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.blog-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.read-more {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.9rem;
}

/* CONTACT FORM */
.contact-wrapper {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-family: var(--font-accent);
    color: var(--accent-color);
    font-size: 0.8rem;
    margin-bottom: 8px;
    letter-spacing: 1px;
    font-weight: 600;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    border-radius: 4px;
    font-family: var(--font-main);
    transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(0, 0, 0, 0.3);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.1);
}

.contact-wrapper .cta-button {
    width: 100%;
    margin-top: 10px;
}

.social-links {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-bottom: 1px solid transparent;
}

.social-links a:hover {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

/* FOOTER */
footer {
    background: #000011;
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.footer-links {
    display: flex;
    gap: 20px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .highlight-grid,
    .blog-grid,
    .about-content {
        grid-template-columns: 1fr;
    }

    .blog-card {
        flex-direction: column;
    }

    .blog-card img {
        width: 100%;
        height: 200px;
    }

    /* Mobile Menu Toggle */
    .mobile-menu-toggle {
        display: block;
        cursor: pointer;
        z-index: 1001;
    }

    .mobile-menu-toggle span {
        display: block;
        width: 25px;
        height: 3px;
        background-color: var(--text-color);
        margin: 5px 0;
        transition: all 0.3s ease;
    }

    /* Hamburger Animation */
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
        background-color: var(--accent-color);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
        background-color: var(--accent-color);
    }

    /* Mobile Nav Links */
    .nav-links {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--glass-bg);
        backdrop-filter: blur(15px);
        flex-direction: column;
        align-items: center;
        width: 100%;
        padding: 20px 0;
        gap: 20px;
        border-bottom: 1px solid var(--glass-border);
        transform: translateY(-200%);
        /* Move fully out of view */
        transition: transform 0.4s ease-in-out;
        z-index: 999;
    }

    .nav-links.active {
        transform: translateY(0);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }

    .nav-links a {
        font-size: 1.1rem;
        width: 100%;
        text-align: center;
        padding: 10px 0;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* CHECKBOX STYLES */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--accent-color);
}

.checkbox-group label {
    margin: 0;
    font-weight: 400;
    text-transform: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
}

.checkbox-group label a {
    color: var(--accent-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-bottom-color 0.3s;
}

.checkbox-group label a:hover {
    border-bottom-color: var(--accent-color);
}