@import url('https://fonts.googleapis.com/css2?family=Jost:ital,wght@0,100..900;1,100..900&display=swap');
        :root {
            --bg-body: #0d1117;
            --bg-panel: #161b22;
            --text-main: #c9d1d9;
            --text-white: #ffffff;
            --text-muted: #8b949e;
            --grad-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
        }

           * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: "Jost", sans-serif;
            font-optical-sizing: auto;
            font-weight: <weight>;
            font-style: normal;
           }

        body {
            background-color: var(--bg-body);
            color: var(--text-main);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        /* === 2. HEADER MINIMALIS === */
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 25px 5%;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
        }

        .logo {
            font-size: clamp(24px, 4vw, 28px);
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -1px;
            text-decoration: none;
        }

        .nav-links a {
            color: var(--text-white);
            text-decoration: none;
            font-weight: 600;
            font-size: 15px;
            transition: color 0.2s;
        }
        
        .nav-links a:hover { color: #3b82f6; }

        /* === 3. HERO SECTION (AREA UPLOAD) === */
        main {
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 60px 20px;
            text-align: center;
        }

        h1 {
            font-size: clamp(36px, 6vw, 64px);
            color: var(--text-white);
            line-height: 1.1;
            margin-bottom: 20px;
            font-weight: 800;
            letter-spacing: -1px;
            max-width: 800px;
        }

        .subtitle {
            font-size: clamp(16px, 3vw, 22px);
            color: var(--text-muted);
            margin-bottom: 40px;
            font-weight: 400;
        }

        /* Tombol Upload Utama */
        .btn-upload {
            background: var(--text-white);
            color: var(--bg-body);
            border: none;
            padding: 16px 40px;
            border-radius: 50px; /* Bentuk Pil Khas Web Modern */
            font-size: 18px;
            font-weight: 700;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-upload:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(255,255,255,0.1);
        }

        /* Input File Asli (Disembunyikan) */
        #file-input { display: none; }

        /* === 4. ANIMASI PROGRESS BAR (MUNCUL SAAT UPLOAD) === */
        .upload-process-area {
            display: none; /* Hilang di awal */
            width: 100%;
            max-width: 500px;
            margin-top: 20px;
            background: var(--bg-panel);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid rgba(255,255,255,0.05);
        }

        .progress-title {
            color: var(--text-white);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .progress-bar-bg {
            width: 100%;
            height: 12px;
            background-color: var(--bg-body);
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .progress-fill {
            height: 100%;
            width: 0%;
            background: var(--grad-primary);
            border-radius: 10px;
            transition: width 0.3s ease-out; /* Animasi mulus saat nambah persen */
        }

        .progress-text {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* === 5. HASIL AKHIR (MUNCUL SAAT 100%) === */
        .result-area {
            display: none; /* Hilang di awal */
            width: 100%;
            max-width: 500px;
            margin-top: 20px;
            background: var(--bg-panel);
            padding: 40px 30px;
            border-radius: 12px;
            border: 1px solid rgba(255,255,255,0.05);
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }

        .result-msg {
            font-size: 18px;
            color: var(--text-white);
            font-weight: 600;
        }

        .result-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: -10px;
        }

        .btn-create-account {
            background: var(--grad-primary);
            color: white;
            border: none;
            padding: 14px 35px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            text-decoration: none;
            transition: opacity 0.2s;
        }
        
        .btn-create-account:hover { opacity: 0.9; }

        /* === 6. ARTIKEL SEO === */
        .seo-article {
            width: 100%;
            max-width: 800px;
            margin: 60px auto 40px auto;
            padding: 0 20px;
            text-align: center;
        }

        .seo-article h2 {
            font-size: clamp(20px, 4vw, 24px);
            color: var(--text-white);
            margin-bottom: 15px;
        }

        .seo-article p {
            font-size: clamp(14px, 3vw, 16px);
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* === 7. FOOTER === */
        footer {
            display: flex;
            justify-content: center;
            gap: 30px;
            padding: 40px 20px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        footer a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.2s;
        }

        footer a:hover { color: var(--text-white); }