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

/* Variables */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --gray-color: #94a3b8;
    --white-color: #ffffff;
    --transition: all 0.3s ease;
    --shadow: 0 5px 6px rgba(0, 64, 144, 0.8);
    --border-radius: 8px;
}

/* Base Styles */
body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--primary-color);
    color: var(--white-color);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white-color);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white-color);
    box-shadow: var(--shadow);
    filter: drop-shadow var(--shadow);
    transition: all 0.2s ease;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    margin-left: 10px;
}

.logo a span {
    color: #2563eb; 
    font-weight: 600; 
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-item {
    margin: 0 1rem;
}

.nav-link {
    color: var(--dark-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(30, 64, 175, 0.1) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    z-index: -1;
}

.hero-container {
    text-align: center;
    padding: 0 20px;
}

.profile-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--white-color);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 1.5rem; 
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: var(--dark-color);
}

.hero h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    color: var(--dark-color);
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* About Section */
.about {
    padding: 5rem 0;
    margin-top: 40px;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.about-img {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-direction: row; /* ⬅️ ini penting biar sejajar kanan-kiri */
}

.about-img img {
    width: 100%;
    max-width: 400px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    filter: drop-shadow var(--shadow:); /* Efek glow biru */
    transition: all 0.3s ease;
}

.about-img img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow);
    filter: drop-shadow var(--shadow);
}

/* Kotak 3 foto di samping */
.side-photos {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.side-photos img {
    width: 140px;
    height: 140px;
    object-fit: cover;
    border-radius: var(--border-radius);
    border: 2px solid #1d3557; /* ganti warna sesuai tema kamu */
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.side-photos img:hover {
    transform: scale(1.05);
}

/* Responsif di layar kecil */
@media (max-width: 768px) {
    .about-content {
        flex-direction: column;
        text-align: center;
    }

    .about-img {
        flex-direction: column;
    }

    .side-photos {
        flex-direction: row;
        justify-content: center;
    }

    .side-photos img {
        width: 80px;
        height: 80px;
    }
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

/* Skills Section */
.skills {
    padding: 5rem 0;
    background-color: #f1f5f9;
    margin-top: 40px;
}

.skills-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--white-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
    text-align: center;
}

.skill {
    margin-bottom: 1.5rem;
}

.skill:last-child {
    margin-bottom: 0;
}

.skill-name {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.skill-name i {
    font-size: 1.2rem;
    margin-right: 0.5rem;
    color: var(--primary-color);
}

.skill-bar {
    height: 10px;
    background: #e2e8f0;
    border-radius: 5px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--primary-color);
    border-radius: 5px;
    position: relative;
    width: 0;
    transition: width 1s ease-in-out;
}

.skill-percent {
    float: right;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dark-color);
}

/* Projects Section */
.projects {
    padding: 5rem 0;
    margin-top: 40px;
}

.project-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.filter-btn {
    padding: 8px 20px;
    background: var(--white-color);
    border: 1px solid var(--gray-color);
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    align-items: stretch;
}

.project-card {
    background: var(--white-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.project-info p {
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.project-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-links .btn {
    flex: 1;
    text-align: center;
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* Certificates Section */
.certificates {
    padding: 5rem 0;
    background-color: #f1f5f9;
    margin-top: 40px;
}

.certificate-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.certificate-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.certificate-item {
    background: var(--white-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.certificate-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.certificate-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.certificate-item:hover img {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

.certificate-info {
    padding: 1.5rem;
}

.certificate-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.certificate-info p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* Lightbox (popup sertifikat) style */
.lightboxOverlay {
    background: rgba(15, 23, 42, 0.9) !important;
}

.lb-data .lb-caption {
    font-size: 0.95rem;
    color: #f8fafc;
    text-align: center;
    margin-top: 10px;
}

.lb-data .lb-number {
    display: none;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    margin-top: 40px;
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.contact-info p {
    margin-bottom: 2rem;
    color: var(--dark-color);
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
    color: var(--dark-color);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white-color);
    border-radius: 50%;
    font-size: 1.2rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white-color);
    padding: 2rem 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-logo a {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white-color);
    text-decoration: none;
    margin-bottom: 1rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white-color);
    border-radius: 50%;
    font-size: 1.2rem;
    transition: var(--transition);
    text-decoration: none;
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-info p {
    font-size: 0.9rem;
    color: var(--gray-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--white-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-color);
    background: none;
    border: none;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    color: var(--white-color);
    font-size: 2rem;
    cursor: pointer;
}