/* --- CSS VARIABLES & RESET --- */
    :root {
      --bg-body: #0a192f;
      --bg-card: #112240;
      --bg-nav: rgba(10, 25, 47, 0.85);
      --text-primary: #ccd6f6;
      --text-secondary: #8892b0;
      --accent: #64ffda;
      /* Cyan Elegan */
      --accent-glow: rgba(100, 255, 218, 0.15);
      --gradient-text: linear-gradient(90deg, #64ffda, #a78bfa);

      --font-heading: "Poppins", sans-serif;
      --font-body: "Inter", sans-serif;
      --font-code: "Fira Code", monospace;

      --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
      --border-radius: 8px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background-color: var(--bg-body);
      color: var(--text-primary);
      font-family: var(--font-body);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }

    ul {
      list-style: none;
    }

    section {
      padding: 100px 20px;
      max-width: 1200px;
      margin: 0 auto;
    }

    /* --- UTILITIES --- */
    .code-font {
      font-family: var(--font-code);
      color: var(--accent);
      font-size: 0.9rem;
      margin-bottom: 1rem;
      display: block;
    }

    .section-title {
      font-family: var(--font-heading);
      font-size: 2rem;
      margin-bottom: 2.5rem;
      color: var(--text-primary);
      display: flex;
      align-items: center;
    }

    .section-title::after {
      content: "";
      display: block;
      width: 200px;
      height: 1px;
      background-color: var(--bg-card);
      margin-left: 20px;
      background: linear-gradient(90deg, var(--bg-card), #233554);
    }

    .btn {
      display: inline-block;
      padding: 12px 28px;
      border: 1px solid var(--accent);
      border-radius: 4px;
      color: var(--accent);
      font-family: var(--font-code);
      font-size: 0.9rem;
      background: transparent;
      cursor: pointer;
      transition: var(--transition);
    }

    .btn:hover {
      background-color: var(--accent-glow);
      transform: translateY(-3px);
    }

    .btn-solid {
      background-color: var(--accent);
      color: var(--bg-body);
      font-weight: 600;
    }

    .btn-solid:hover {
      background-color: #4cdbb9;
      color: var(--bg-body);
    }

    /* --- NAVIGATION --- */
    nav {
      position: fixed;
      top: 0;
      width: 100%;
      height: 80px;
      background-color: var(--bg-nav);
      backdrop-filter: blur(10px);
      z-index: 1000;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0 50px;
      box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
    }

    .logo {
      font-family: var(--font-code);
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--accent);
      border: 2px solid var(--accent);
      padding: 5px 10px;
      border-radius: 4px;
    }

    /* CV Download Button - Top Left */
    .cv-download-btn {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 6px 12px;
      background: rgba(100, 255, 218, 0.1);
      border: 1px solid var(--accent);
      border-radius: 6px;
      color: var(--accent);
      font-family: var(--font-code);
      font-size: 0.85rem;
      font-weight: 600;
      transition: var(--transition);
    }

    .cv-download-btn:hover {
      background: var(--accent);
      color: var(--bg-primary);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(100, 255, 218, 0.3);
    }

    .cv-download-btn svg {
      width: 16px;
      height: 16px;
    }

    .nav-links {
      display: flex;
      gap: 30px;
    }

    .nav-links a {
      font-family: var(--font-code);
      font-size: 0.9rem;
      color: var(--text-primary);
    }

    .nav-links a:hover {
      color: var(--accent);
    }

    .nav-links span {
      color: var(--accent);
      margin-right: 5px;
    }

    .hamburger {
      display: none;
      cursor: pointer;
      font-size: 1.5rem;
      color: var(--accent);
    }

    /* --- HERO SECTION (UPDATED) --- */
    .hero {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
      /* Vertikal Tengah */
      align-items: center;
      /* Horizontal Tengah (Changed from flex-start) */
      text-align: center;
      /* Text Alignment Tengah */
      padding-top: 80px;
    }

    .hero-intro {
      font-family: var(--font-code);
      color: var(--accent);
      font-size: 1rem;
      margin-bottom: 1.5rem;
    }

    .hero h1 {
      font-family: var(--font-heading);
      font-size: 3.5rem;
      line-height: 1.1;
      color: var(--text-primary);
      margin-bottom: 10px;
    }

    .hero h2 {
      font-family: var(--font-heading);
      font-size: 2.5rem;
      line-height: 1.1;
      color: var(--text-secondary);
      margin-bottom: 20px;
    }

    .hero p {
      max-width: 600px;
      /* Sedikit diperlebar agar seimbang di tengah */
      color: var(--text-secondary);
      font-size: 1.1rem;
      margin-bottom: 3rem;
      margin-left: auto;
      margin-right: auto;
    }

    /* --- ABOUT & EXPERIENCE --- */
    .about-container {
      display: grid;
      grid-template-columns: 3fr 2fr;
      gap: 50px;
      align-items: start;
    }

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

    .info-cards-wrapper {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .info-card {
      background-color: var(--bg-card);
      padding: 1.5rem;
      border-radius: var(--border-radius);
      position: relative;
    }

    .info-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--gradient-text);
      border-radius: var(--border-radius) var(--border-radius) 0 0;
    }

    .card-title {
      font-family: var(--font-heading);
      font-size: 1.1rem;
      color: var(--text-primary);
      margin-bottom: 0.5rem;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .card-subtitle {
      color: var(--accent);
      font-family: var(--font-code);
      font-size: 0.85rem;
      margin-bottom: 1rem;
      display: block;
    }

    .exp-item {
      margin-bottom: 0.8rem;
      padding-bottom: 0.8rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .exp-item:last-child {
      margin-bottom: 0;
      padding-bottom: 0;
      border-bottom: none;
    }

    .exp-role {
      font-weight: 600;
      color: var(--text-primary);
      font-size: 0.95rem;
    }

    .exp-company {
      font-family: var(--font-code);
      font-size: 0.85rem;
      color: var(--accent);
    }

    .exp-date {
      font-size: 0.8rem;
      color: var(--text-secondary);
      font-style: italic;
    }

    /* --- SKILLS --- */
    .skills-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
    }

    .skill-category {
      background-color: var(--bg-card);
      padding: 2rem;
      border-radius: var(--border-radius);
      transition: var(--transition);
    }

    .skill-category:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
    }

    .skill-icon {
      font-size: 2rem;
      margin-bottom: 1rem;
      color: var(--accent);
    }

    .skill-category h3 {
      font-family: var(--font-heading);
      font-size: 1.2rem;
      margin-bottom: 1rem;
      color: var(--text-primary);
    }

    .tech-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tech-tag {
      font-family: var(--font-code);
      font-size: 0.8rem;
      color: var(--text-secondary);
      background-color: var(--bg-body);
      padding: 5px 10px;
      border-radius: 4px;
    }

    /* --- PORTFOLIO --- */
    .projects-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

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

    .project-card:hover {
      transform: translateY(-7px);
    }

    .project-image {
      width: 100%;
      height: 280px;
      background-color: #1a1f35;
      position: relative;
      overflow: hidden;
    }

    .project-image img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      transition: var(--transition);
      filter: grayscale(100%);
    }

    .project-card:hover .project-image img {
      filter: grayscale(0%);
      transform: scale(1.05);
    }

    .project-content {
      padding: 1.5rem;
    }

    .project-title {
      font-family: var(--font-heading);
      font-size: 1.25rem;
      color: var(--text-primary);
      margin-bottom: 0.5rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .project-desc {
      font-size: 0.95rem;
      color: var(--text-secondary);
      margin-bottom: 1.5rem;
    }

    .project-tech {
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      font-family: var(--font-code);
      font-size: 0.8rem;
      color: var(--text-secondary);
      margin-bottom: 1.5rem;
    }

    .project-links a {
      color: var(--text-primary);
      font-size: 1.2rem;
      margin-right: 15px;
    }

    .project-links a:hover {
      color: var(--accent);
    }

    /* Expand Button & Details */
    .expand-btn {
      display: inline-block;
      margin-top: 1rem;
      padding: 8px 20px;
      border: 1px solid var(--accent);
      border-radius: 4px;
      color: var(--accent);
      font-family: var(--font-code);
      font-size: 0.85rem;
      background: transparent;
      cursor: pointer;
      transition: var(--transition);
    }

    .expand-btn:hover {
      background-color: var(--accent-glow);
      transform: translateY(-2px);
    }

    .project-details {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease-out, opacity 0.4s ease-out;
      opacity: 0;
      margin-top: 0;
    }

    .project-details.show {
      max-height: 1000px;
      opacity: 1;
      margin-top: 1rem;
    }

    .project-details h4 {
      font-family: var(--font-heading);
      font-size: 1rem;
      color: var(--accent);
      margin-bottom: 0.8rem;
      margin-top: 1rem;
    }

    .project-details ul {
      list-style: none;
      padding-left: 0;
    }

    .project-details li {
      color: var(--text-secondary);
      font-size: 0.9rem;
      margin-bottom: 0.5rem;
      padding-left: 1.5rem;
      position: relative;
    }

    .project-details li::before {
      content: "▹";
      position: absolute;
      left: 0;
      color: var(--accent);
      font-size: 1.2rem;
      line-height: 1;
    }

    /* --- CONTACT --- */
    .contact-container {
      text-align: center;
      max-width: 600px;
      margin: 0 auto;
    }

    .contact-container h2 {
      font-family: var(--font-heading);
      font-size: 3rem;
      color: var(--text-primary);
      margin-bottom: 1rem;
    }

    .contact-container p {
      color: var(--text-secondary);
      font-size: 1.1rem;
      margin-bottom: 2.5rem;
    }

    /* --- FOOTER --- */
    footer {
      text-align: center;
      padding: 20px;
      color: var(--text-secondary);
      font-family: var(--font-code);
      font-size: 0.8rem;
      margin-bottom: 20px;
    }

    .social-links {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-top: 15px;
      margin-bottom: 20px;
    }

    .social-links a {
      color: var(--text-secondary);
      font-size: 1.2rem;
    }

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

    /* --- RESPONSIVE --- */
    @media (max-width: 768px) {
      section {
        padding: 80px 20px;
      }

      nav {
        padding: 0 25px;
      }

      .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 70%;
        background-color: #112240;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateX(100%);
        transition: var(--transition);
        box-shadow: -10px 0px 30px -15px rgba(2, 12, 27, 0.7);
      }

      .nav-links.active {
        transform: translateX(0);
      }

      /* Hide CV text on mobile, keep icon */
      .cv-download-btn span {
        display: none;
      }

      .cv-download-btn {
        padding: 8px;
      }

      .hamburger {
        display: block;
        z-index: 1001;
      }

      .hero h1 {
        font-size: 2.5rem;
      }

      .hero h2 {
        font-size: 2rem;
      }

      .about-container {
        grid-template-columns: 1fr;
      }

      .projects-grid {
        grid-template-columns: 1fr;
      }

      .section-title::after {
        width: 100px;
      }
    }

    /* --- PRINT STYLES FOR PDF --- */
    @media print {

      /* Hide interactive elements */
      nav,
      .blob,
      .blob-1,
      .blob-2,
      .expand-btn,
      .mobile-menu-toggle,
      #contact form {
        display: none !important;
      }

      /* Reset colors for print */
      body {
        background: white !important;
        color: #000 !important;
      }

      /* Show all project details by default */
      .project-details {
        display: block !important;
        opacity: 1 !important;
        max-height: none !important;
      }

      /* Optimize layout */
      section {
        page-break-inside: avoid;
        padding: 20px 0 !important;
      }

      .hero {
        padding-top: 30px !important;
      }

      .section-title {
        color: #000 !important;
        page-break-after: avoid;
      }

      /* Project cards */
      .projects-grid {
        grid-template-columns: 1fr !important;
      }

      .project-card {
        page-break-inside: avoid;
        background: white !important;
        border: 1px solid #ddd !important;
        margin-bottom: 20px;
      }

      .project-image {
        height: 200px !important;
      }

      .project-image img {
        filter: none !important;
      }

      /* Skills */
      .skills-grid {
        grid-template-columns: repeat(2, 1fr) !important;
      }

      /* Text optimization */
      h1,
      h2,
      h3,
      h4 {
        color: #000 !important;
      }

      p,
      li,
      span {
        color: #333 !important;
      }

      /* Links */
      a {
        color: #0066cc !important;
        text-decoration: underline;
      }

      /* Remove animations */
      * {
        animation: none !important;
        transition: none !important;
      }
    }

    @page {
      size: A4;
      margin: 15mm;
    }

    /* --- ANIMATIONS & AMBIENCE --- */
    @keyframes float {
      0% {
        transform: translate(0px, 0px) scale(1);
      }

      33% {
        transform: translate(30px, -50px) scale(1.1);
      }

      66% {
        transform: translate(-20px, 20px) scale(0.9);
      }

      100% {
        transform: translate(0px, 0px) scale(1);
      }
    }

    .blob {
      position: fixed;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(100, 255, 218, 0.08) 0%, rgba(10, 25, 47, 0) 70%);
      border-radius: 50%;
      z-index: -1;
      pointer-events: none;
      animation: float 20s infinite ease-in-out;
    }

    .blob-1 {
      top: -100px;
      left: -100px;
      animation-delay: 0s;
    }

    .blob-2 {
      bottom: -100px;
      right: -100px;
      background: radial-gradient(circle, rgba(167, 139, 250, 0.08) 0%, rgba(10, 25, 47, 0) 70%);
      animation-delay: -5s;
    }

    /* Reveal Animation Classes */
    .reveal-up {
      opacity: 0;
      transform: translateY(30px);
      transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
    }

    .reveal-up.active {
      opacity: 1;
      transform: translateY(0);
    }

    /* Hidden class for typing effect */
    .typing-cursor::after {
      content: '|';
      animation: blink 1s step-end infinite;
    }

    @keyframes blink {

      0%,
      100% {
        opacity: 1;
      }

      50% {
        opacity: 0;
      }
    }