:root {
    --primary: #2563eb;
    --dark: #0f172a;
    --light: #f8fafc;
    --lightblue: #dbeafe; 
    --navy: #364863;
    --card-bg: #ffffff;
    --border: #e5e7eb;
    --shadow: #092650;
    }


    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Inter', sans-serif;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        background: var(--light);
        color: var(--dark);
        line-height: 1.6;
    }

    /* ===== NAVBAR ===== */
    header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: blur(100px);
        backdrop-filter: blur(8px);
        border-bottom: 1px solid var(--light);
    }

    .navbar {
        max-width: 1100px;
        margin: auto;
        padding: 1rem 1.5rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .logo {
        font-weight: 700;
        font-size: 1.2rem;
        letter-spacing: 0.5px;
    }

    .navbar ul {
        list-style: none;
        display: flex;
        gap: 1.5rem;
    }

    .navbar a {
        text-decoration: none;
        color: var(--dark);
        font-weight: 500;
        transition: color 0.3s;
    }

    .navbar a:hover {
        color: var(--primary);
    }

    /* ===== HERO / LANDING PAGE ===== */
    .hero {
        min-height: 90vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 2rem 1.5rem;
        background: linear-gradient(180deg, var(--lightblue), var(--light));
    }

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

    .hero h1 {
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 1rem;
        text-shadow:
            0 0 8px rgba(37, 99, 235, 0.35),
            0 0 20px rgba(37, 99, 235, 0.25);
        animation: glow 2.5s ease-in-out infinite alternate;
    }

    @keyframes glow {
        from {
            text-shadow:
                0 0 6px rgba(37, 99, 235, 0.3),
                0 0 14px rgba(37, 99, 235, 0.2);
        }
        to {
            text-shadow:
                0 0 12px rgba(37, 99, 235, 0.6),
                0 0 28px rgba(37, 99, 235, 0.4);
        }
    }

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

    .hero p {
        color: var(--navy);
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }

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

    .btn {
        padding: 0.75rem 1.5rem;
        border-radius: 999px;
        border: none;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s;
        text-decoration: none;
    }

    .btn-primary {
        background: var(--primary);
        color: #fff;
    }

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

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

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

    /* ===== SECTION ===== */
    section {
        scroll-margin-top: 60px; /* sesuaikan dengan tinggi navbar kamu */
        max-width: 1100px;
        margin: auto;
        padding: 2rem 1.5rem;
    }

    section h2 {
        font-size: 2rem;
        margin-bottom: 1rem;
    }

    section p {
        color: var(--navy);
        max-width: 700px;
    }


    /* ===== ABOUT SECTION ===== */

    .about {
        background: var(--light);
    }
    .about-grid {
        max-width: 1000px;
        margin: 0 auto;
        padding: 0px 20px;
    }


    .about-intro {
        display: flex;
        align-items: center;
        gap: 40px;
        margin-bottom: 50px;
    }

    .about-intro img{
        width: 220px;
        height: 220px;
        object-fit: cover;
        flex-shrink: 0; /* biar gambar nggak mengecil saat layar sempit */
    }

    .about-text p {
    margin-bottom: 1rem;
    }


    .highlight {
    font-size: 1.05rem;
    color: var(--dark);
    font-size: 1.1rem;
    line-height: 1.6;
    text-align: right;
    }


    .about-note {
    margin-top: 1.5rem;
    font-weight: 500;
    color: var(--shadow);
    }


    /* ===== CARDS ===== */
    .about-cards {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 1rem;
        margin: 1rem 0;
        }

    .marquee {
        width: 100%;
        overflow: hidden;
        position: relative;
        padding: 20px 0;
    }

    .marquee-track {
        display: flex;
        gap: 20px;
        width: max-content;
        animation: scroll-left 15s linear infinite;
    }

    @keyframes scroll-left {
        from { transform: translateX(0); }
        to { transform: translateX(-50%); }
    }


    .card {
        background: var(--card-bg);
        border: 1px solid var(--primary);
        border-radius: 1.25rem;
        padding: 1.75rem 1.5rem;
        transition: all 0.3s ease;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.04);
        position: relative;
        overflow: hidden;
        flex: 0 0 auto;
        width: 220px;
    }


    .card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    }


    .card p {
    font-size: 0.95rem;
    color: var(--navy);
    }

    /* ===== PROJECTS ===== */
    
    .projects {
        background: linear-gradient(180deg, var(--light), var(--lightblue));
    }

    .projects-grid {
        max-width: 1000px;
        margin: 0 auto;
        padding: 0px 20px;
    }

    .projects-grid p {
        margin-bottom: 10px;
        color: var(--navy);
    }

    .filters {
        display: flex;
        flex-wrap: wrap;
        gap: 1.5rem;
        margin: 1.5rem 0 2rem;
        justify-content: center;
    }

    .filter-group {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        flex-wrap: wrap;
    }

    .filter-group label {
        font-weight: 600;
        color: var(--navy);
    }

    .filter-group button {
        padding: 0.4rem 0.9rem;
        border: 1px solid var(--navy);
        background: #fff;
        border-radius: 999px;
        cursor: pointer;
        font-size: 0.85rem;
        transition: all 0.2s;
    }

    .filter-group button:hover {
        border-color: var(--lightblue);
        color: white;
        background: var(--primary);
    }

    .filter-group button.active {
        background: var(--primary);
        color: #fff;
        border-color: var(--lightblue);
    }

    

    .projects-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }

    .project-card {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: 1rem;
        padding: 1.5rem;
        transition: all 0.3s ease;
    }
    
    .project-card:hover {
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
        transform: translateY(-3px);
        transition: all 0.3s ease;
    }

    .project-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 0.5rem;
    }

    .badge {
        font-size: 0.7rem;
        padding: 0.2rem 0.6rem;
        border-radius: 999px;
        font-weight: 600;
        text-transform: uppercase;
    }
    
    .badge-professional {
        background: var(--lightblue);
        color: var(--primary);
    }

    .badge-mini {
        background: #fef3c7;
        color: #b45309;
    }

    .project-desc {
        color: var(--navy);
        font-size: 0.9rem;
    }

    .preview-link {
        text-decoration: none;
        color: var(--primary);
        font-size: 0.85rem;
        font-weight: 600;
    }

    .preview-link:hover {
        text-decoration: underline; /* opsional, kalau mau underline muncul pas hover aja */
    }

    .project-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 0.4rem;
        margin-bottom: 1rem;
    }

    .tag {
        background: #f1f5f9;
        color: var(--dark);
        font-size: 0.75rem;
        padding: 0.25rem 0.6rem;
        border-radius: 0.4rem;
    }

    .project-meta {
        display: flex;
        justify-content: space-between;
        font-size: 0.8rem;
        color: var(--navy);
        border-top: 1px solid var(--border);
        padding-top: 0.75rem;
    }

    .no-result {
        grid-column: 1 / -1;
        text-align: center;
        color: var(--navy);
    }


    .pagination {
        display: flex;
        justify-content: center;
        gap: 0.5rem;
        margin-top: 2rem;
    }

    .pagination button {
        padding: 0.4rem 0.8rem;
        border: 1px solid var(--border);
        background: #fff;
        border-radius: 0.5rem;
        cursor: pointer;
        font-size: 0.85rem;
        transition: all 0.2s;
    }

    .pagination button:hover:not(:disabled) {
        border-color: var(--primary);
        color: var(--primary);
    }

    .pagination button.active {
        color: var(--primary);
        border-color: var(--primary);
    }

    .pagination button:disabled {
        opacity: 0.4;
        cursor: not-allowed;
    }

    /* ===== Library ===== */

    .library {
        background: var(--lightblue);
    }

    .library-grid {
        max-width: 1000px;
        margin: 0 auto;
        padding: 0px 20px;
    }

    .library-grid p {
        margin-bottom: 10px;
        color: var(--navy);
    }


    .library-search {
        margin: 1rem 0 1.5rem;
    }

    .library-search input {
        width: 100%;
        padding: 0.7rem 1rem;
        border: 2px solid var(--border);
        border-radius: 0.75rem;
        font-size: 0.95rem;
        outline: none;
        transition: border-color 0.2s;
    }

    .library-search input:focus {
        border-color: var(--primary);
    }

    .library-card {
       background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: 1rem;
        padding: 1.5rem;
        transition: all 0.3s ease;
    } 
    
    .library-card:hover {
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
        transform: translateY(-3px);
        transition: all 0.3s ease;
    }

    /* ===== FOOTER ===== */
    footer {
        background: linear-gradient(180deg, var(--lightblue), white);
        color: var(--primary);
        padding: 2rem 1.5rem;
        height: 5rem;
    }

    .footer-content {
        max-width: 1100px;
        margin: auto;
        display: flex;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .footer-content span {
        color: var(--primary);
        font-weight: 600;
    }

    .footer-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: rgb(230, 230, 230);
    }

    /* ===== MEDIA QUERIES ===== */

    @media (max-width: 768px) {

        section {
            padding: 1.5rem 1rem;
            align-items: center;
            text-align: center;
        }
    

        .about-intro {
           flex-direction: column;
           align-items: center;
           text-align: center;
           gap: 20px;
        }

        .highlight {
            text-align: center;
        }


    }