* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}

:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --accent-color: #38bdf8;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
}

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

/* --- ANIMASI SCROLL EFFECT --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- NAVBAR --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
}

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

/* Mengatur ukuran gambar logo agar proporsional di navbar */
/* Mengatur gambar logo menjadi lebih besar dan berbentuk lingkaran */
.logo-img {
    height: 100px;
    width: 100px;
    object-fit: cover;       /* Memotong gambar agar memenuhi area kotak */
    object-position: center; /* TAMBAHKAN INI: Memastikan potongan gambar pas di tengah */
    border-radius: 50%;
    border: 2px solid var(--accent-color);
    display: block;
}
.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
}

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

/* --- HERO SECTION --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 2rem;
    text-align: center;
    background: radial-gradient(circle at center, rgba(56, 189, 248, 0.08) 0%, transparent 70%);
    display: flex;
    flex-direction: column; /* Ini yang memaksa teks h1, p, dan tombol turun ke bawah */
    align-items: center;    /* Agar semua teks tetap berada di tengah */
    gap: 20px;              /* Memberikan jarak vertikal antar elemen (h1, p, dan tombol) */
}

.hero-content {
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.hero-content h1 span {
    color: var(--accent-color);
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: #0f172a;
    padding: 0.8rem 2.2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(56, 189, 248, 0.25);
}

/* --- SECTION GENERAL --- */
section {
    padding: 6rem 2rem 2rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 4px;
    background-color: var(--accent-color);
    margin: 10px auto 0 auto;
    border-radius: 2px;
}

/* --- PROJECTS --- */
.project-grid {
    display: grid;
    /* Membuat kolom otomatis dengan lebar minimal 300px. Jika layar muat, proyek akan berjejer ke samping */
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
    gap: 30px; /* Jarak antar kotak proyek (atas, bawah, kiri, kanan) */
    padding: 20px 0;
}

.project-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.03);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Mengubah rasio gambar khusus untuk proyek ini menjadi landscape 16:9 */
.project-img.project-wide img {
    aspect-ratio: 16 / 9; 
    object-fit: cover;
}

/* Opsional: Membuat kartu proyek ini melebar penuh mengambil 2 kolom di layar laptop */
@media (min-width: 768px) {
    .project-card.project-wide {
        grid-column: span 2; 
    }
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.project-img {
    width: 100%;
    overflow: hidden; /* Agar sudut gambar terpotong rapi mengikuti card */
}

.project-img img {
    width: 100%;
    aspect-ratio: 1 / 1; /* Membuat gambar kotak sempurna */
    object-fit: cover;   /* Memotong gambar secara proporsional agar tidak gepeng */
    display: block;      /* Menghilangkan celah kosong kecil di bawah gambar */
}

.project-info {
    position: relative; /* Menjadikan teks berada normal di bawah gambar */
    padding: 20px;       /* Memberikan jarak teks dari pinggir kotak card */
}


.project-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.project-info p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.2rem;
}

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

.tag {
    background-color: rgba(56, 189, 248, 0.08);
    color: var(--accent-color);
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* --- SKILLS --- */
.skills-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;  
}

.skill-badge {
    background-color: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.skill-badge:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: scale(1.05);
}

/* --- CONTACT FORM --- */
.contact-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background-color: var(--bg-color);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--text-main);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.btn-submit {
    width: 100%;
    background-color: var(--accent-color);
    color: #0f172a;
    border: none;
    padding: 1rem;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.btn-submit:hover {
    opacity: 0.9;
}

/* --- FOOTER & SOCIALS --- */
footer {
    text-align: center;
    padding: 4rem 2rem;
    margin-top: 5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.social-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

footer p {
    font-size: 0.9rem;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
    .contact-container {
        padding: 1.5rem;
    }
}