:root {
    --bg-color: #0A0F1A;
    --surface-color: #121826;
    --primary-accent: #00A4FF;
    --secondary-accent: #00F5D4;
    --text-primary: #E6F1FF;
    --text-secondary: #A8B2C3;
    --border-color: rgba(0, 164, 255, 0.2);
    --glow-color: rgba(0, 164, 255, 0.5);

    --font-sans: 'Inter', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    --transition-speed: 0.3s;
}

/* --- Base & Reset --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.7;
    overflow-x: hidden;
}

#neural-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image:
        radial-gradient(circle at 20% 20%, rgba(0, 164, 255, 0.1), transparent 30%),
        radial-gradient(circle at 80% 70%, rgba(0, 245, 212, 0.1), transparent 30%);
    animation: pulse 20s infinite alternate;
}

@keyframes pulse {
    0% { opacity: 0.8; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.05); }
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 100px 0;
    position: relative;
}

a {
    color: var(--primary-accent);
    text-decoration: none;
    transition: color var(--transition-speed);
}
a:hover {
    color: var(--secondary-accent);
}

/* --- Header & Navigation --- */
.main-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 15, 26, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
}

#main-nav ul {
    display: flex;
    list-style: none;
    gap: 1rem;
}

#main-nav .nav-link {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    padding: 0.5rem;
    transition: color var(--transition-speed);
}

#main-nav .nav-link:hover, #main-nav .nav-link.active {
    color: var(--primary-accent);
    text-shadow: 0 0 5px var(--glow-color);
}

.hamburger {
    display: none;
    z-index: 1001;
}

/* --- Hero Section --- */
.hero {
    text-align: center;
    padding: 120px 0;
}

.hero h1 {
    font-family: var(--font-mono);
    font-size: clamp(3rem, 10vw, 5rem);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -2px;
    position: relative;
}

@keyframes glitch {
    2%,64%{ transform: translate(2px,0) skew(0deg); }
    4%,60%{ transform: translate(-2px,0) skew(0deg); }
    62%{ transform: translate(0,0) skew(5deg); }
}
.hero h1:hover { animation: glitch 250ms infinite; }

.hero .subtitle {
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    color: var(--primary-accent);
    font-family: var(--font-mono);
    margin-bottom: 2rem;
}

.hero .bio-short {
    max-width: 700px;
    margin: 0 auto 2.5rem auto;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    font-family: var(--font-mono);
    padding: 12px 28px;
    border: 1px solid var(--primary-accent);
    background: transparent;
    color: var(--primary-accent);
    transition: all var(--transition-speed) ease;
    cursor: pointer;
}

.btn:hover {
    background-color: var(--primary-accent);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--glow-color);
}

/* --- Section Styling --- */
.section-title {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 2rem;
    margin-bottom: 4rem;
    color: var(--text-primary);
}

.section-title span { color: var(--primary-accent); }

/* --- Glassmorphism Cards (Nawah & Projects) --- */
.card-grid, .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.info-card, .project-card {
    background: rgba(18, 24, 38, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    transition: all var(--transition-speed) ease;
}

.info-card:hover, .project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-accent);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.info-card h3 {
    font-family: var(--font-mono);
    color: var(--primary-accent);
    margin-bottom: 1.5rem;
    text-align: center;
}

.info-card ul {
    list-style: none;
}

.info-card ul li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 1.5rem;
}
.info-card ul li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--primary-accent);
    font-family: var(--font-mono);
}

.project-card {
    display: flex;
    flex-direction: column;
}

.project-card .card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}
.project-card .card-header i { font-size: 1.5rem; color: var(--primary-accent); }
.project-card h3 { font-size: 1.25rem; }
.project-card p { flex-grow: 1; color: var(--text-secondary); margin-bottom: 1.5rem; }

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.tech-stack {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    background: rgba(0, 164, 255, 0.1);
    color: var(--primary-accent);
    padding: 5px 10px;
    border-radius: 4px;
}

.card-footer a { font-size: 1.5rem; }

/* --- Contact --- */
.contact-prompt {
    text-align: center;
    max-width: 600px;
    margin: -2rem auto 3rem auto;
    color: var(--text-secondary);
}

.contact-grid {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.contact-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    flex-basis: 250px;
    flex-grow: 1;
    transition: all var(--transition-speed);
}
.contact-card:hover {
    border-color: var(--primary-accent);
    transform: translateY(-5px);
}
.contact-card i {
    font-size: 2.5rem;
    color: var(--primary-accent);
    margin-bottom: 1rem;
}
.contact-card p {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    word-break: break-all;
}

/* --- Footer --- */
.main-footer-bottom {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}
.footer-content p {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    .hamburger {
        display: block;
        background: none;
        border: none;
        cursor: pointer;
        padding: 10px;
    }
    .hamburger-bar {
        display: block;
        width: 25px;
        height: 2px;
        margin: 6px 0;
        background-color: var(--text-primary);
        transition: all 0.3s ease-in-out;
    }

    #main-nav {
        display: none;
        position: fixed;
        top: 70px; /* Below header */
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-color);
    }
    #main-nav.open { display: block; }
    #main-nav ul {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        height: 100%;
        gap: 2rem;
    }
    #main-nav .nav-link { font-size: 1.25rem; }

    .hamburger.open .hamburger-bar:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
    .hamburger.open .hamburger-bar:nth-child(2) { opacity: 0; }
    .hamburger.open .hamburger-bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }
    
    .section { padding: 80px 0; }
}