:root {
    /* Color Palette - Tech Dark Theme */
    --bg-main: #0a0e1c;
    --bg-card: #151a2d;
    --text-main: #ffffff;
    --text-muted: #a3a8b5;
    --primary: #00c8e8;
    --primary-hover: #00b0cc;
    --secondary: #1a2238;
    --secondary-hover: #26314f;
    --accent: #00c8e8;
    
    /* Layout */
    --container-width: 1100px;
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

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

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

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

/* Navbar (Glassmorphism) */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 14, 28, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: none;
    padding: 1rem 0;
    transition: var(--transition);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.23);
}

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

.btn-secondary:hover {
    background-color: var(--secondary-hover);
    transform: translateY(-2px);
}

/* Main Layout */
main {
    margin-top: 80px; /* Offset for fixed navbar */
    min-height: calc(100vh - 160px);
}

/* Hero Section */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, transparent 70%);
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

.highlight {
    color: transparent;
    background-clip: text;
    -webkit-background-clip: text;
    background-image: linear-gradient(90deg, var(--primary), var(--accent));
}

.hero-text h2 {
    font-size: 1.5rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero-text p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 480px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--bg-card), rgba(59,130,246,0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.image-placeholder .icon {
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.5;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* Page Sections */
.hero, .page-section {
    scroll-margin-top: 100px;
}

.page-section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    border-color: rgba(59,130,246,0.3);
}

.project-image {
    height: 200px;
    background: rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.project-info {
    padding: 1.5rem;
}

.project-info p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.project-tags span {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    background: rgba(59,130,246,0.1);
    color: var(--primary);
    border-radius: 100px;
}

/* Contact Form */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    background: var(--bg-card);
    padding: 3rem;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
}

.contact-info p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.contact-details p {
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    color: var(--text-main);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.2);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    border-top: 1px solid rgba(255,255,255,0.05);
    margin-top: 2rem;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.service-card {
    background: rgba(10, 14, 28, 0.6);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    border: 1px solid rgba(0, 200, 232, 0.1);
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 200, 232, 0.3);
    box-shadow: 0 10px 30px rgba(0, 200, 232, 0.1);
}

.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, rgba(0,200,232,0.2) 0%, rgba(0,200,232,0) 70%);
    border-radius: 16px;
    border: 1px solid rgba(0,200,232,0.2);
    font-size: 1.8rem;
    color: var(--primary);
    box-shadow: inset 0 0 15px rgba(0,200,232,0.1);
}

.service-card h4 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--text-main);
    margin-bottom: 1rem;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.service-card .btn-link {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: auto;
}

.service-card .btn-link:hover {
    color: var(--primary-hover);
    gap: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content, .contact-wrapper {
        grid-template-columns: 1fr;
    }
    .hero-text h1 {
        font-size: 2.5rem;
    }
    .nav-links {
        display: none; /* Mobile menu can be added later */
    }
}