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

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent: #ffffff;
    --border: #333333;
    --hover-bg: #2a2a2a;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: transparent;
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo img {
    height: 32px; /* Anda bisa sesuaikan ukurannya */
    width: auto;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Hamburger Menu Icon */
.hamburger {
    display: none; /* Hidden by default on desktop */
    cursor: pointer;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    -webkit-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
    background-color: var(--text-primary);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden; /* Menyembunyikan bagian slider yang keluar */
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    /* Menambahkan padding untuk memberi ruang bagi navbar yang fixed */
    padding-top: 5rem;
}

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

.hero-title {
    font-family: 'Inter', sans-serif;
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
}

.hero-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--accent);
    color: var(--bg-primary);
    text-decoration: none;
    font-weight: 600;
    border-radius: 0;
    transition: all 0.3s ease;
    border: 2px solid var(--accent);
    font-family: 'Roboto Mono', monospace;
}

.cta-button:hover {
    background: transparent;
    color: var(--accent);
    transform: translateY(-2px);
}

/* Floating particles */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    bottom: 0; /* Memberikan posisi awal di bagian bawah */
    width: 2px;
    height: 2px;
    background: var(--accent);
    border-radius: 50%;
    /* Menggunakan animasi baru yang bergerak dari bawah ke atas */
    animation: float-up 10s linear infinite;
    opacity: 0; /* Mulai dengan transparan */
}

/* Animasi baru untuk membuat partikel melayang ke atas */
@keyframes float-up {
    0% { transform: translateY(0); opacity: 1; }
    50% { opacity: 1; }
    100% { transform: translateY(-100vh); opacity: 0; }
}

/* Section Styling */
.section {
    padding: 6rem 0;
    position: relative;
}

/* Padding vertikal untuk section, agar konsisten */
.section-padding {
    padding-top: 12rem;
}

.section-title {
    font-family: 'Inter', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--accent);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 2rem;
}

.about-image {
    width: 300px;
    height: 300px;
    justify-self: center;
    position: relative;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--border);
    background: var(--bg-card);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.about-image:hover img {
    transform: scale(1.1);
}

.about-details {
    display: flex;
    flex-direction: column;
}

.about-text {    
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Projects Section Header */
.projects-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.projects-header .section-title {
    margin-bottom: 0;
    text-align: left;
}

.projects-header .section-title::after {
    left: 0;
    transform: translateX(0);
}

.projects-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-input {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-family: 'Roboto Mono', monospace;
    width: 250px;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-secondary);
}

.slider-nav {
    display: flex;
    gap: 0.5rem;
}

.slider-nav-btn {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-nav-btn:hover {
    background: var(--hover-bg);
    border-color: var(--accent);
}

.slider-nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--bg-card);
    border-color: var(--border);
}

.slider-nav-btn svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* Projects Section */
.projects-slider-wrapper {
    overflow: hidden;
    position: relative;
}

.projects-grid {
    display: flex;
    gap: 2rem;
    transition: transform 0.5s ease-in-out;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    /* padding dipindahkan ke .project-card-content */
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    /* Tambahan untuk alignment tombol */
    display: flex;
    flex-direction: column;
    /* Atur lebar tetap untuk slider */
    flex: 0 0 calc((100% / 3) - (4rem / 3));
    min-width: 350px;
}
.project-card.hidden {
    display: none;
}


.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent) 0%, transparent 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.project-card:hover {
    background: var(--hover-bg);
    transform: translateY(-10px);
}

.project-image-container {
    height: 200px;
    overflow: hidden;
}

.project-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project-card:hover .project-card-image {
    transform: scale(1.05);
}

.project-card-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1; /* Memastikan konten mengisi sisa ruang */
}

.project-card:hover .project-description::after {
    background: linear-gradient(to top, var(--hover-bg), transparent);
}

.project-title {
    font-family: 'Inter', sans-serif;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;    
    /* Tambahan untuk membatasi panjang dan efek fade */
    position: relative;
    max-height: 4.5em; /* Sekitar 3 baris (0.9rem * 1.6 line-height * 3) */
    overflow: hidden;
}

/* Efek gradien transparan untuk teks yang terpotong */
.project-description::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1.5em; /* Tinggi area gradien */
    background: linear-gradient(to top, var(--bg-card), transparent);
    pointer-events: none; /* Agar tidak mengganggu interaksi mouse */
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
    border: 1px solid var(--border);
    font-family: 'Roboto Mono', monospace;
}

.project-links {
    display: flex;
    gap: 18px;
    margin-top: 16px;
    /* Mendorong link ke bawah kartu */
    margin-top: auto;
    align-items: center;
}

.project-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: var(--accent);
}

/* Project Detail Page */
.project-detail-container {
    max-width: 900px;
    background: var(--bg-secondary);
    padding: 2rem 3rem 3rem;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.project-detail-container .section-title {
    text-align: left;
    margin-bottom: 1rem;
}

.project-detail-container .section-title::after {
    left: 0;
    transform: translateX(0);
}

.project-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.tag { /* Kelas ini dibuat oleh JS di project_detail.html */
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 0.4rem 0.9rem;
    font-size: 0.85rem;
    border: 1px solid var(--border);
    font-family: 'Roboto Mono', monospace;
    border-radius: 4px;
}

.project-image {
    width: 100%;
    max-width: 100%;
    /* Hapus properti yang tidak relevan untuk slider */
    margin: 0;
    border: none;
    border-radius: 0;
    display: block;
}

/* Project Image Slider */
.project-image-slider {
    position: relative;
    width: 100%;
    max-width: 100%;
    margin: 2rem 0;
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid var(--border);
    background-color: var(--bg-card);
}

.slider-image-wrapper {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slider-image-wrapper .project-image {
    width: 100%;
    flex-shrink: 0;
    object-fit: contain; /* 'contain' agar gambar tidak terpotong */
    max-height: 500px; /* Batasi tinggi maksimum gambar */
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(10, 10, 10, 0.6);
    color: white;
    border: 1px solid var(--border);
    cursor: pointer;
    z-index: 10;
    transition: background-color 0.3s ease;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background-color: rgba(10, 10, 10, 0.9);
}

.slider-btn.prev { left: 16px; }
.slider-btn.next { right: 16px; }

.slider-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

#project-description {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}
.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    border: 1px solid rgba(0,0,0,0.2);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.dot.active {
    background-color: white;
}

.project-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.metric-item { /* Kelas ini dibuat oleh JS */
    background: var(--bg-card);
    padding: 1.5rem;
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
}

.metric-item h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.metric-item p {
    font-size: 1.5rem;
    color: var(--text-primary);
    font-weight: 700;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr; /* Kolom kiri lebih kecil dari kanan */
    gap: 4rem;
    align-items: start;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 3rem;
    margin-top: 3rem; /* Jarak dari judul section */
}

.contact-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    text-align: left;
}

.contact-links {
    display: flex;
    justify-content: flex-start; /* Ratakan ikon ke kiri */
    flex-wrap: wrap;
    gap: 1rem;
}

.contact-link {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.contact-link:hover {
    color: var(--accent);
    background: var(--hover-bg);
    transform: scale(1.1);
}

.contact-icon {
    width: 24px;
    height: 24px;
    fill: currentColor;
    flex-shrink: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem; /* Jarak antar kolom form */
    text-align: left;
}

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

.form-label {
    display: block;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    text-align: left;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

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

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-button {
    width: 100%;
    padding: 1rem;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    font-family: 'Roboto Mono', monospace;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid var(--accent);
}

.form-button:hover {
    background: transparent;
    color: var(--accent);
}

/* Form Status Message */
.form-status-message {
    padding: 1rem;
    margin-top: 1.5rem;
    text-align: center;
    font-weight: 500;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    display: none; /* Mulai dengan tersembunyi */
}

.form-status-message.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.form-status-message.success {
    background-color: #2f9e44; /* Hijau yang lebih bagus */
    color: #ffffff;
}
.form-status-message.error {
    background-color: #e03131; /* Merah yang lebih bagus */
    color: #ffffff;
}
/* Footer */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        /* Menambah padding atas & bawah pada mobile untuk memberi ruang */
        /* bagi navbar dan skill slider, dan memastikan konten tetap di tengah. */
        padding-top: 8rem; /* Menambah jarak dari navbar */
        padding-bottom: 4rem; /* Menyesuaikan padding bawah agar tetap seimbang */
        text-align: center;
    }

    .hero-content {
        /* Padding ini dipindahkan ke parent (.hero) untuk menghindari masalah alignment */
        padding-bottom: 0;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 5rem; /* Sesuaikan dengan tinggi navbar */
        gap: 0;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        height: calc(100vh - 5rem);
        text-align: center;
        transition: 0.3s;
        padding-top: 2rem;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links li {
        padding: 1.5rem 0;
    }

    .nav-links a {
        font-size: 1.2rem;
    }

    .projects-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .projects-controls {
        width: 100%;
    }

    .search-input {
        flex-grow: 1;
    }

    .project-card {
        flex: 0 0 90%;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-image {
        width: 250px;
        height: 250px;
    }

    /* .projects-grid {
        grid-template-columns: 1fr;
    } */

    .contact-container {
        grid-template-columns: 1fr; /* Buat menjadi 1 kolom */
        gap: 3rem;
        padding: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    #contact .section-title {
        font-size: 1.8rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}