:root {
    /* Colors - Light Neo-Glassmorphism Theme */
    --primary-color: #000048;
    /* Electric Blue - Kept for pop */
    --secondary-color: #2F78C4;
    /* Slate 500 for secondary text */
    --accent-color: #f97316;
    /* Safety Orange */
    --text-color: #1e293b;
    /* Slate 800 - Deep, readable text */
    --text-light: #ffffff;
    --background-dark: #f8fafc;
    /* Slate 50 - Very light grey/white */
    --background-card: #ffffff;
    /* Pure White */
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.6);
    --shadow-soft: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
    /* Soft light shadow */

    /* Spacing */
    --container-width: 1200px;
    --section-padding: 100px 0;

    /* Transitions */
    --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    /* Soft Grey Gradient */
    background-attachment: fixed;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--secondary-color);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    /* Increased for readability */
    background-color: var(--primary-color);
    color: var(--text-light);
    /* White text */
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    /* Subtle shadow */
    transition: all 0.3s ease;
    border: none;
}

.btn:hover {
    background-color: var(--accent-color);
    /* Terracotta hover */
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    font-weight: 600;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

/* Header */
header {
    background-color: rgba(255, 255, 255, 0.85);
    /* Light Glass */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: rgb(47, 120, 196);
    /* Custom Blue */
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: rgb(47, 120, 196);
    /* Custom Blue */
    font-size: 0.9rem;
    font-weight: 600;
}

.nav-links a:hover {
    color: var(--accent-color);
    /* Yellow hover */
}

/* Hero Section */
.hero {
    height: 90vh;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-light);
}

.hero-content h1 {
    font-size: 4rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about-section {
    padding: var(--section-padding);
    background-color: var(--background-dark);
}

.about-content {
    display: flex;
    gap: 40px;
    align-items: center;
    flex-wrap: wrap;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.about-placeholder {
    background: var(--background-card);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

/* Services Section */
.services {
    padding: var(--section-padding);
    background-color: var(--background-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background: rgba(255, 255, 255, 0.7);
    padding: 2.5rem;
    text-align: center;
    border: 1px solid #ffffff;
    border-radius: 12px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.1);
    /* Lighter shadow */
    background: rgba(255, 255, 255, 0.95);
    border-color: var(--primary-color);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Projects Section */
.projects {
    padding: var(--section-padding);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.project-card {
    position: relative;
    overflow: hidden;
    height: 300px;
}

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

.project-overlay {
    position: absolute;
    bottom: -100%;
    left: 0;
    width: 100%;
    padding: 20px;
    background: rgba(33, 33, 33, 0.9);
    color: white;
    transition: bottom 0.3s ease;
}

.project-card:hover .project-overlay {
    bottom: 0;
}

.project-card:hover img {
    transform: scale(1.1);
}

.contact {
    padding: var(--section-padding);
    background-color: var(--background-card);
    color: var(--text-color);
    border-top: 1px solid var(--glass-border);
    position: relative;
}

.contact::before {
    display: none;
    /* Remove tech glow */
}

.contact .section-title {
    color: var(--text-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--glass-border);
    background: var(--background-dark);
    color: var(--text-color);
    font-family: inherit;
    border-radius: 6px;
    transition: var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--secondary-color);
}



.contact-form .btn {
    background-color: var(--accent-color);
    /* Terracotta */
    color: var(--text-light);
}

.contact-form .btn:hover {
    background-color: var(--secondary-color);
    /* Slate Grey hover */
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer {
    background-color: rgb(0, 0, 72);
    /* Custom Deep Blue */
    color: white;
    /* White text */
    border-top: none;
    padding: 4rem 0 2rem;
    font-size: 0.95rem;
    position: relative;
    overflow: hidden;
    text-align: center;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

footer .container {
    position: relative;
    z-index: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Mobile menu implementation needed later or simple stack */
    }

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

    .contact-content {
        grid-template-columns: 1fr;
    }
}