/* Variabel Warna (Dark Theme & Blue Accent) */
:root {
    --bg-color: #0b1121; /* Biru sangat gelap (Background utama) */
    --second-bg-color: #111827; /* Biru gelap (Background seksi) */
    --text-color: #f3f4f6; /* Putih keabu-abuan (Teks) */
    --main-color: #3b82f6; /* Biru dominan / aksen */
    --main-hover: #2563eb;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-decoration: none;
    list-style: none;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Typography Umum */
section {
    padding: 100px 10%;
}
.heading {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}
.heading span {
    color: var(--main-color);
}

/* Navigasi */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 10%;
    background-color: rgba(11, 17, 33, 0.9);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}
.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-color);
}
.logo span {
    color: var(--main-color);
}
.nav-links {
    display: flex;
}
.nav-links li {
    margin: 0 15px;
}
.nav-links a {
    color: var(--text-color);
    font-size: 1rem;
    transition: 0.3s;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--main-color);
}
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}
.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 4px 0;
    transition: 0.3s;
}

/* Home Section */
.home {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 100vh;
    background-color: var(--bg-color);
}
.home-content h1 {
    font-size: 3rem;
}
.highlight {
    color: var(--main-color);
}
.home-content h3 {
    font-size: 1.8rem;
    margin: 10px 0;
}
.home-content p {
    font-size: 1rem;
    margin-bottom: 20px;
    line-height: 1.6;
    color: #9ca3af;
}
.btn {
    display: inline-block;
    padding: 10px 28px;
    background: var(--main-color);
    color: #fff;
    border-radius: 5px;
    font-weight: bold;
    transition: 0.3s;
}
.btn:hover {
    background: var(--main-hover);
    box-shadow: 0 0 15px var(--main-color);
}
.home-img img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--main-color);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
}

/* Tentang Section */
.tentang {
    background-color: var(--second-bg-color);
}
.tentang-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.tentang-text p {
    line-height: 1.8;
    margin-bottom: 20px;
    color: #d1d5db;
}
.hobi-list ul {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 10px;
    flex-wrap: wrap;
}
.hobi-list li {
    background: var(--bg-color);
    padding: 10px 20px;
    border-radius: 5px;
    border: 1px solid var(--main-color);
}

/* Pendidikan Section */
.pendidikan {
    background-color: var(--bg-color);
}
.timeline {
    max-width: 600px;
    margin: 0 auto;
    border-left: 2px solid var(--main-color);
    padding-left: 20px;
}
.timeline-item {
    margin-bottom: 30px;
    position: relative;
}
.timeline-dot {
    width: 15px;
    height: 15px;
    background: var(--main-color);
    border-radius: 50%;
    position: absolute;
    left: -28.5px;
    top: 5px;
}
.timeline-content {
    background: var(--second-bg-color);
    padding: 15px;
    border-radius: 8px;
}

/* Keahlian Section */
.keahlian {
    background-color: var(--second-bg-color);
}
.skills-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.skill-box {
    background: var(--bg-color);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    width: 150px;
    border-bottom: 3px solid var(--main-color);
    transition: 0.3s;
}
.skill-box:hover {
    transform: translateY(-10px);
}
.skill-box i {
    font-size: 3rem;
    color: var(--main-color);
    margin-bottom: 10px;
}

/* Proyek Section */
.proyek {
    background-color: var(--bg-color);
}
.proyek-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.proyek-card {
    background: var(--second-bg-color);
    padding: 20px;
    border-radius: 10px;
    width: 300px;
    border: 1px solid #1f2937;
}
.proyek-card h3 {
    margin-bottom: 10px;
    color: var(--main-color);
}

/* Kontak Section */
.kontak {
    background-color: var(--second-bg-color);
    text-align: center;
}
.kontak-info p {
    font-size: 1.2rem;
    margin-bottom: 20px;
}
.social-media a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 2px solid var(--main-color);
    border-radius: 50%;
    color: var(--main-color);
    font-size: 1.2rem;
    margin: 0 10px;
    transition: 0.3s;
}
.social-media a:hover {
    background: var(--main-color);
    color: #fff;
    box-shadow: 0 0 10px var(--main-color);
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    background: var(--bg-color);
}

/* Responsivitas (Mobile Menu) */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    .nav-links {
        position: absolute;
        top: 100%;
        left: -100%;
        width: 100%;
        background-color: rgba(11, 17, 33, 0.95);
        flex-direction: column;
        align-items: center;
        transition: 0.3s;
    }
    .nav-links.active {
        left: 0;
    }
    .nav-links li {
        margin: 20px 0;
    }
    .home {
        flex-direction: column;
        text-align: center;
        padding-top: 120px;
    }
    .home-img {
        margin-top: 30px;
    }
}