body {
    font-family: 'Poppins', 'Roboto', Arial, sans-serif;
    margin: 0;
    background: #f6f6f6;
    color: #232323;
    line-height: 1.7;
}
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 8%;
    background: #fff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    position: sticky;
    top: 0;
    z-index: 10;
}
nav .logo {
    font-size: 2rem;
    font-weight: 700;
    color: #232323;
    letter-spacing: 1px;
}
nav .logo span {
    color: #888;
    font-weight: 700;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 32px;
    margin: 0;
    padding: 0;
}
nav ul li a {
    text-decoration: none;
    color: #232323;
    font-weight: 500;
    font-family: 'Roboto', Arial, sans-serif;
    transition: color 0.2s, border-bottom 0.2s;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
}
nav ul li a:hover, nav ul li a:focus {
    color: #888;
    border-bottom: 2px solid #888;
}
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 80px 8% 64px 8%;
    background: linear-gradient(90deg, #fff 60%, #ededed 100%);
    min-height: 70vh;
}
.hero-text h1 {
    font-size: 2.8rem;
    margin-bottom: 0.5em;
    font-weight: 700;
    letter-spacing: 1px;
}
.hero-text .highlight {
    color: #232323;
    background: linear-gradient(90deg, #ededed 30%, #cccccc 100%);
    padding: 0 8px;
    border-radius: 6px;
}
.hero-text p {
    font-size: 1.2rem;
    margin-bottom: 1.5em;
    color: #555;
}
.hero-text .btn {
    background: linear-gradient(90deg, #232323 60%, #888 100%);
    color: #fff;
    padding: 14px 38px;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(34,34,34,0.08);
    transition: background 0.2s, transform 0.2s;
    cursor: pointer;
    letter-spacing: 1px;
}
.hero-text .btn:hover {
    background: linear-gradient(90deg, #444 60%, #232323 100%);
    transform: translateY(-2px) scale(1.04);
}
.hero-img img {
    width: 300px;
    border-radius: 18px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    border: 4px solid #fff;
    background: #fff;
    object-fit: cover;
}
.about {
    padding: 64px 8%;
    background: #fff;
}
.about h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: #232323;
    margin-bottom: 32px;
    letter-spacing: 1px;
}
.about-content {
    display: flex;
    align-items: flex-start;
    gap: 48px;
}
.about-content img {
    width: 220px;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    border: 3px solid #888;
    background: #fff;
    object-fit: cover;
}
.about-content div > p {
    text-align: justify;
}
.about-content ul {
    margin-top: 18px;
    padding-left: 0;
    list-style: none;
}
.about-content ul li {
    margin-bottom: 8px;
    font-size: 1rem;
}
.skills {
    padding: 64px 8%;
    background: #ededed;
}
.skills h2 {
    font-size: 2rem;
    color: #232323;
    margin-bottom: 28px;
    font-weight: 700;
}
.skills-list {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}
.skills-list h3 {
    margin-bottom: 12px;
    color: #232323;
    font-weight: 600;
}
.skills-list ul {
    list-style: disc inside;
    padding-left: 0;
    color: #444;
    /* hilangkan bullet jika ada gambar */
}
.skills-list ul.tools-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 18px 32px;
    align-items: center;
    padding-left: 0;
    margin-top: 8px;
}
.skills-list ul.tools-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.05rem;
    margin-bottom: 8px;
    background: none;
    border: none;
}
.skills-list ul.tools-list img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 1px 4px rgba(34,34,34,0.07);
    margin-right: 6px;
}
.projects {
    padding: 64px 8%;
    background: #fff;
}
.projects h2 {
    font-size: 2rem;
    color: #232323;
    margin-bottom: 28px;
    font-weight: 700;
}
.project-list {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}
.project-item {
    background: #ededed;
    border-radius: 14px;
    padding: 24px 18px 18px 18px;
    width: 300px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    text-align: center;
    transition: transform 0.18s, box-shadow 0.18s;
}
.project-item:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 8px 32px rgba(34,34,34,0.10);
}
.project-item img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 14px;
    object-fit: cover;
    height: 140px;
    background: #fff;
}
.project-item h4 {
    margin: 10px 0 8px 0;
    font-size: 1.15rem;
    color: #232323;
    font-weight: 600;
}
.project-item p {
    color: #555;
    font-size: 0.98rem;
    min-height: 48px;
}
.project-item a {
    display: inline-block;
    margin-top: 10px;
    color: #888;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1.5px solid #888;
    transition: color 0.18s, border 0.18s;
}
.project-item a:hover {
    color: #232323;
    border-bottom: 1.5px solid #232323;
}
.activities {
    padding: 64px 8%;
    background: #f6f6f6;
    color: #232323;
}
.activities h2 {
    font-size: 2rem;
    color: #232323;
    margin-bottom: 28px;
    font-weight: 700;
}
.activities-list {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}
.activities-list h3 {
    margin-bottom: 12px;
    color: #232323;
    font-weight: 600;
}
.activities-list ul {
    list-style: disc inside;
    padding-left: 0;
}
.activities-list ul li {
    /* hilangkan display flex di sini, gunakan di .activity-item saja */
    margin-bottom: 8px;
    font-size: 1.05rem;
}
.activity-item {
    display: flex;
    justify-content: flex-start; /* rata kiri untuk isi */
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    /* text tetap rata kiri, button tetap di kanan setelah teks */
    width: 100%;
}
.activity-item button {
    flex-shrink: 0;
    margin-left: 18px;
    /* tetap di sebelah kanan teks */
    /* jika ingin button selalu rata kanan, gunakan margin-left: auto; */
}
.certificates {
    display: flex;
    gap: 16px;
    margin-top: 8px;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.certificates img {
    width: 120px;
    border-radius: 8px;
    border: 2px solid #fff;
    background: #fff;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: transform 0.18s, border 0.18s;
    display: block;
    margin-left: auto;
    margin-right: auto;
}
.contact {
    padding: 64px 8%;
    background: #fff;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.contact h2 {
    font-size: 2rem;
    color: #232323;
    margin-bottom: 18px;
    font-weight: 700;
}
.contact-social-title {
    font-size: 1.05rem;
    color: #888;
    margin-bottom: 10px;
    margin-top: 10px;
    font-weight: 500;
    letter-spacing: 1px;
}
.contact-social {
    display: flex;
    gap: 18px;
    margin-bottom: 10px;
    align-items: center;
}
.contact-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ededed;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    transition: background 0.18s, box-shadow 0.18s, border 0.18s;
    box-shadow: 0 2px 8px rgba(34,34,34,0.06);
    border: 1.5px solid #ccc;
}
.contact-social a:hover {
    background: #232323;
    border-color: #232323;
}
.contact-social svg {
    display: block;
    margin: auto;
    stroke: #232323;
    transition: stroke 0.18s;
}
.contact-social a:hover svg {
    stroke: #fff;
}
.contact-info {
    margin-top: 8px;
    color: #444;
    font-size: 1rem;
    text-align: left;
}
.contact-info a {
    color: #232323;
    text-decoration: underline dotted;
    transition: color 0.18s;
}
.contact-info a:hover {
    color: #888;
}
@media (max-width: 900px) {
    .hero, .about-content, .skills-list, .activities-list, .project-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
    }
    .hero-img img, .about-content img {
        width: 180px;
    }
    .project-item {
        width: 100%;
    }
    .contact-form-wrapper {
        padding: 20px 10px 16px 10px;
    }
    .contact-social {
        gap: 12px;
    }
    .modal-certificate img {
        max-width: 95vw;
        max-height: 60vh;
    }
}
  
.modal-certificate .modal-content {
    background: #fff;
   
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(34,34,34,0.18);
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.modal-certificate img {
    max-width: 70vw;
    max-height: 70vh;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(34,34,34,0.10);
}
.modal-imgs {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    align-items: center;
}
.modal-imgs img {
    max-width: 320px;
    max-height: 320px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(34,34,34,0.10);
    margin-bottom: 12px;
    background: #fff;
}
.close-modal {
    position: absolute;
    top: 10px; right: 18px;
    font-size: 2rem;
    color: #888;
    cursor: pointer;
    font-weight: bold;
    transition: color 0.18s;
    z-index: 10;
    display: none;
}
.close-modal:hover {
    color: #232323;
}
@media (max-width: 900px) {
    .hero, .about-content, .skills-list, .activities-list, .project-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
    }
    .hero-img img, .about-content img {
        width: 180px;
    }
    .project-item {
        width: 100%;
    }
    .contact-form-wrapper {
        padding: 20px 10px 16px 10px;
    }
    .contact-social {
        gap: 12px;
    }
    .modal-certificate img {
        max-width: 95vw;
        max-height: 60vh;
    }
}
   
.modal-imgs {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    align-items: center;
}
.modal-imgs img {
    max-width: 320px;
    max-height: 320px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(34,34,34,0.10);
    margin-bottom: 12px;
    background: #fff;
}
.close-modal {
    position: absolute;
    top: 10px; right: 18px;
    font-size: 2rem;
    color: #888;
    cursor: pointer;
    font-weight: bold;
    transition: color 0.18s;
    z-index: 10;
}
.close-modal:hover {
    color: #232323;
}
@media (max-width: 900px) {
    .hero, .about-content, .skills-list, .activities-list, .project-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
    }
    .hero-img img, .about-content img {
        width: 180px;
    }
    .project-item {
        width: 100%;
    }
    .contact-form-wrapper {
        padding: 20px 10px 16px 10px;
    }
    .contact-social {
        gap: 12px;
    }
    .modal-certificate img {
        max-width: 95vw;
        max-height: 60vh;
    }
}
footer {
    text-align: center;
    padding: 24px 0;
    background: #ededed;
    color: #888;
    font-size: 1rem;
    margin-top: 32px;
    letter-spacing: 1px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

img {
    max-width: 100%;
    height: auto;
}

section {
    scroll-margin-top: 96px;
}

nav {
    flex-wrap: wrap;
    gap: 16px;
}

nav ul {
    flex-wrap: wrap;
    justify-content: flex-end;
}

.hero-text > div {
    display: flex !important;
    gap: 12px;
    flex-wrap: wrap;
}

.project-list {
    justify-content: center;
    align-items: stretch;
}

.project-item {
    flex: 1 1 280px;
    max-width: 320px;
    width: auto;
}

.modal-certificate {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(35, 35, 35, 0.65);
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 24px;
}

.modal-certificate .modal-content {
    max-width: min(92vw, 1100px);
    max-height: 90vh;
    overflow: auto;
}

.close-modal {
    display: block;
}

@media (max-width: 1024px) {
    nav {
        padding: 18px 4%;
    }

    nav .logo {
        font-size: 1.7rem;
    }

    nav ul {
        gap: 16px 20px;
    }

    .hero,
    .about,
    .skills,
    .projects,
    .activities,
    .contact {
        padding-left: 4%;
        padding-right: 4%;
    }

    .hero {
        min-height: auto;
        padding-top: 64px;
        padding-bottom: 56px;
    }

    .hero-text h1 {
        font-size: 2.35rem;
    }

    .hero-img img,
    .about-content img {
        width: 240px;
    }
}

@media (max-width: 900px) {
    .hero,
    .about-content,
    .skills-list,
    .activities-list,
    .project-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 28px;
    }

    .project-item {
        width: 100%;
        max-width: 100%;
    }

    .contact-social {
        flex-wrap: wrap;
    }

    .modal-certificate img {
        max-width: 95vw;
        max-height: 60vh;
    }
}

@media (max-width: 768px) {
    nav {
        align-items: flex-start;
    }

    nav .logo {
        font-size: 1.5rem;
    }

    nav ul {
        width: 100%;
        justify-content: flex-start;
    }

    .hero {
        padding-top: 48px;
        padding-bottom: 48px;
        gap: 28px;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-text p {
        font-size: 1.05rem;
    }

    .hero-text > div {
        width: 100%;
    }

    .hero-text .btn {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .about h2,
    .skills h2,
    .projects h2,
    .activities h2,
    .contact h2 {
        font-size: 1.7rem;
    }

    .skills-list ul.tools-list {
        gap: 12px 18px;
    }

    .project-item {
        padding: 20px 16px 16px;
    }

    .contact-info {
        font-size: 0.95rem;
    }
}

@media (max-width: 600px) {
    .hero,
    .about,
    .skills,
    .projects,
    .activities,
    .contact {
        padding-left: 16px;
        padding-right: 16px;
    }

    .hero-text h1 {
        font-size: 1.8rem;
    }

    .hero-img img,
    .about-content img {
        width: min(72vw, 260px);
    }

    .activity-item {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }

    .activity-item button {
        margin-left: 0;
    }

    .contact-social {
        gap: 10px;
    }

    .contact-social a {
        width: 40px;
        height: 40px;
    }

    .project-item p {
        min-height: auto;
    }

    .nav-toggle {
        right: 12px;
        top: 12px;
    }

    nav ul {
        gap: 10px 14px;
    }
}