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

        body {
            background: #050505;
            color: #e5e5e5;
            font-family: 'Space Mono', 'Courier New', monospace;
            display: flex;
            justify-content: center;
            padding: 2rem 1rem;
            min-height: 100vh;
        }

        .container {
            max-width: 1280px;
            width: 100%;
            border: 1px solid #1f1f1f;
            background: #0a0a0a;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9);
            background-image:
            linear-gradient(#222 1px, transparent 1px),
            linear-gradient(90deg, #222 1px, transparent 1px);
            /* background-size: 48px 48px; */
            /* opacity: 0.2; */
        }

        /* ---------- HEADER (title bar) ---------- */
        .window-header {
            height: 48px;
            border-bottom: 1px solid #1f1f1f;
            background: #141414;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 1rem;
        }

        .window-header .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #6b6b6b;
            display: inline-block;
        }
        .window-header .dot.green {
            background: #4ade80;
            animation: pulse 1.5s ease-in-out infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .window-header .version {
            font-size: 10px;
            color: #6b6b6b;
            letter-spacing: 0.05em;
        }

        /* ---------- NAV (social) ---------- */
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            padding: 0.5rem 1rem;
            border-bottom: 1px solid #1f1f1f;
            background: #0a0a0a;
        }

        .nav-bar a {
            display: inline-flex;
            padding: 6px;
            border-radius: 8px;
            border: 1px solid transparent;
            transition: all 0.25s;
            color: #a3a3a3;
            text-decoration: none;
        }
        .nav-bar a:hover {
            border-color: rgba(74, 222, 128, 0.3);
            background: rgba(74, 222, 128, 0.08);
            color: #4ade80;
        }

        .nav-bar svg {
            width: 22px;
            height: 22px;
            fill: currentColor;
            display: block;
        }

        .nav-bar .sys-status {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 8px;
            color: #6b6b6b;
        }
        .nav-bar .sys-status .led {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #4ade80;
        }

        /* ---------- HERO / INTRO ---------- */
        .hero {
            padding: 2rem 1.5rem 1.5rem;
            border-bottom: 1px solid #1f1f1f;
            background: #0d0d0d;
            background-image:
            linear-gradient(#191717 0.5px, transparent 1px),
            linear-gradient(90deg, #191717 0.5px, transparent 1px);
            background-size: 68px 68px;
            /* opacity: 0.5; */
        }

        .hero .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 10px;
            color: #4ade80;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.75rem;
        }
        .hero .badge .line {
            width: 32px;
            height: 1px;
            background: rgba(74, 222, 128, 0.4);
        }
        .hero .badge .circle {
            width: 8px;
            height: 8px;
            border: 1px solid rgba(74, 222, 128, 0.4);
            border-radius: 50%;
        }

        .hero h1 {
            font-size: 4rem;
            font-weight: 700;
            letter-spacing: -0.04em;
            line-height: 1;
            color: #ffffff;
        }
        .hero h1 span {
            background: linear-gradient(to right, #404040, #1a1a1a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            -webkit-text-stroke: 1px #737373;
        }

        /* .hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            letter-spacing: -0.03em;
            color: #fff;
        }
        .hero h1 span {
            background: linear-gradient(to right, #404040, #1a1a1a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            -webkit-text-stroke: 1px #737373;
        } */

        .hero .tagline {
            margin-top: 1rem;
            padding-left: 1.2rem;
            border-left: 2px solid rgba(74, 222, 128, 0.2);
            font-size: 0.85rem;
            color: #a3a3a3;
            line-height: 1.6;
        }
        .hero .tagline strong {
            color: #e5e5e5;
        }

        .hero .topics {
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.8rem;
            margin-top: 1rem;
            padding-top: 1rem;
            /* border-top: 1px solid #1f1f1f; */
        }
        .hero .topics span {
            font-size: 0.65rem;
            color: #a3a3a3;
            background: #1a1a1a;
            padding: 0.2rem 0.6rem;
            border-radius: 4px;
            letter-spacing: 0.02em;
        }
        .hero .topics span.highlight {
            color: #4ade80;
            border: 1px solid rgba(74, 222, 128, 0.2);
            background: transparent;
        }

        /* ---------- SECTION HEADER ---------- */
        .section-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.5rem 1.5rem 0.5rem;
        }
        .section-header h2 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
        }
        .section-header .line {
            flex: 1;
            height: 1px;
            background: #1f1f1f;
        }
        .section-header .count {
            font-size: 0.65rem;
            color: #6b6b6b;
            background: #1a1a1a;
            padding: 0.1rem 0.6rem;
            border-radius: 20px;
        }

        /* ---------- GRID WRITEUPS ---------- */
        .writeups-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            padding: 1rem 1.5rem 2rem;
        }

        @media (min-width: 640px) {
            .writeups-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .writeups-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* ---------- CARD ---------- */
        .card {
            border: 1px solid #262626;
            background: #0d0d0d;
            display: flex;
            flex-direction: column;
            transition: border-color 0.25s, transform 0.15s;
            position: relative;
        }
        .card:hover {
            border-color: rgba(74, 222, 128, 0.3);
            transform: translateY(-2px);
        }

        /* --- thumbnail --- */
        .card .thumb {
            width: 100%;
            aspect-ratio: 16 / 9;
            background: #1a1a1a;
            overflow: hidden;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            border-bottom: 1px solid #1f1f1f;
        }
        .card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .card .thumb .placeholder {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 0.3rem;
            color: #6b6b6b;
            font-size: 0.6rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            width: 100%;
            height: 100%;
            background: #141414;
            background-image:
                radial-gradient(circle at 20% 30%, rgba(74, 222, 128, 0.03) 0%, transparent 60%),
                radial-gradient(circle at 80% 70%, rgba(74, 222, 128, 0.03) 0%, transparent 60%);
        }
        .card .thumb .placeholder .icon {
            font-size: 2.2rem;
            line-height: 1;
            opacity: 0.5;
        }
        .card .thumb .placeholder .cat-tag {
            background: rgba(74, 222, 128, 0.12);
            padding: 0.15rem 0.6rem;
            border-radius: 12px;
            color: #4ade80;
            font-size: 0.5rem;
            border: 1px solid rgba(74, 222, 128, 0.1);
        }

        /* --- body --- */
        .card .body {
            padding: 1rem 1rem 0.75rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card .body .category {
            font-size: 0.55rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: #4ade80;
            margin-bottom: 0.35rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .card .body .category .dot-sep {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: #4ade80;
            opacity: 0.4;
        }
        .card .body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 0.4rem;
            letter-spacing: -0.01em;
        }
        .card .body p {
            font-size: 0.7rem;
            color: #a3a3a3;
            line-height: 1.6;
            flex: 1;
        }
        .card .body .divider {
            height: 1px;
            background: #1f1f1f;
            margin: 0.6rem 0 0.5rem;
        }
        .card .body .link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.65rem;
            font-weight: 700;
            color: #a3a3a3;
            text-decoration: none;
            padding: 0.3rem 0.6rem 0.3rem 0;
            transition: color 0.2s;
            letter-spacing: 0.01em;
        }
        .card .body .link:hover {
            color: #4ade80;
        }
        .card .body .link svg {
            width: 14px;
            height: 14px;
            stroke: currentColor;
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        /* ---------- ABOUT / FOOTER ---------- */
        .about-section {
            padding: 1.5rem;
            border-top: 1px solid #1f1f1f;
            background: #0d0d0d;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .about-section h2 {
            font-size: 1.1rem;
            color: #fff;
            letter-spacing: -0.02em;
        }
        .about-section p {
            font-size: 0.75rem;
            color: #a3a3a3;
            line-height: 1.7;
            max-width: 700px;
        }
        .about-section .social-links {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        .about-section .social-links a {
            font-size: 0.7rem;
            color: #a3a3a3;
            text-decoration: none;
            border-bottom: 1px solid transparent;
            transition: color 0.2s, border-color 0.2s;
            padding-bottom: 0.1rem;
        }
        .about-section .social-links a:hover {
            color: #4ade80;
            border-bottom-color: rgba(74, 222, 128, 0.3);
        }

        .about-section .badge-resp {
            display: inline-block;
            font-size: 0.6rem;
            background: #1a1a1a;
            padding: 0.2rem 0.8rem;
            border-radius: 16px;
            color: #6b6b6b;
            border: 1px solid #1f1f1f;
            letter-spacing: 0.02em;
            align-self: flex-start;
        }
        .about-section .badge-resp strong {
            color: #4ade80;
            font-weight: 400;
        }

        /* ---------- SCROLLBAR ---------- */
        ::-webkit-scrollbar {
            width: 6px;
            background: #0a0a0a;
        }
        ::-webkit-scrollbar-thumb {
            background: #2a2a2a;
            border-radius: 4px;
        }

        /* --- PUBLISHER BADGE (baru) --- */
        .card .body .publisher {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.55rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            padding: 0.15rem 0.6rem 0.15rem 0.5rem;
            border-radius: 20px;
            background: #1a1a1a;
            border: 1px solid #2a2a2a;
            color: #a3a3a3;
            margin-bottom: 8px;
            margin-top: 4px;
            align-self: flex-start;
            transition: border-color 0.2s;
        }
        .card .body .publisher img {
            width: 24px;
            height: 24px;
            border-radius: 4px;
            object-fit: contain;
            background: #0d0d0d;
            flex-shrink: 0;
            display: block;
        }
        .card .body .publisher .pub-icon {
            width: 12px;
            height: 12px;
            border-radius: 4px;
            background: #2a2a2a;
            display: inline-block;
            flex-shrink: 0;
        }
        .card .body .publisher .pub-icon.cyber {
            background: #4ade80;
        }
        .card .body .publisher .pub-icon.infosec {
            background: #60a5fa;
        }

        .card .body .publisher.cyber {
            border-color: rgba(74, 222, 128, 0.3);
            color: #4ade80;
        }
        .card .body .publisher.infosec {
            border-color: rgba(96, 165, 250, 0.3);
            color: #60a5fa;
        }