:root {
      --bg-primary: #080b10;
      --bg-secondary: #101820;
      --bg-card: #141f29;
      --text-primary: #f1f5f2;
      --text-secondary: #98a7ae;
      --accent: #5eead4;
      --accent-warm: #fb7185;
      --accent-glow: rgba(94, 234, 212, 0.24);
      --nav-bg: rgba(8, 11, 16, 0.82);
      --hero-glow: rgba(94, 234, 212, 0.1);
      --hero-warm-glow: rgba(251, 113, 133, 0.08);
      --green: #25D366;
      --border: rgba(214, 240, 235, 0.1);
      --radius: 14px;
      --max-width: 1100px;
      --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    body {
      font-family: "DM Sans", sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.6;
      overflow-x: hidden;
    }

    h1, h2, h3, h4, .nav-logo-text, .btn { font-family: "Space Grotesk", sans-serif; }

    a { color: var(--accent); text-decoration: none; transition: var(--transition); }
    a:hover { opacity: 0.8; }
    img { max-width: 100%; display: block; }

    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ─── Navbar ─── */
    nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      padding: 16px 24px;
      background: var(--nav-bg);
      backdrop-filter: blur(16px) saturate(180%);
      -webkit-backdrop-filter: blur(16px) saturate(180%);
      border-bottom: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
    }

    .nav-logo-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--accent), #38bdf8);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 800;
      color: #061014;
      flex-shrink: 0;
    }

    .nav-logo-icon img {
      width: 100%;
      height: 100%;
      border-radius: inherit;
      object-fit: cover;
    }

    .nav-logo-text {
      font-size: 18px;
      font-weight: 700;
      letter-spacing: -0.3px;
      color: var(--text-primary);
    }

    .nav-links { display: flex; gap: 28px; align-items: center; }
    .nav-main-links,
    .nav-actions { display: flex; align-items: center; }
    .nav-main-links { gap: 24px; }
    .nav-actions { gap: 10px; }
    .nav-links a {
      color: var(--text-secondary);
      font-size: 14px;
      font-weight: 500;
      position: relative;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: var(--transition);
    }
    .nav-links a:hover { color: var(--text-primary); }
    .nav-links a:hover::after { width: 100%; }

    .nav-icon-link {
      width: 34px;
      height: 34px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border);
      border-radius: 50%;
      font-size: 15px;
    }
    .nav-icon-link::after { display: none; }
    .nav-icon-link:hover {
      color: var(--text-primary);
      border-color: var(--accent);
      background: rgba(56, 189, 248, 0.08);
      opacity: 1;
    }

    .nav-resume {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 9px 15px;
      border: 1px solid rgba(56, 189, 248, 0.45);
      border-radius: 9px;
      color: var(--accent) !important;
      font-size: 13px !important;
      font-weight: 700 !important;
    }
    .nav-resume::after { display: none; }
    .nav-resume:hover {
      background: rgba(56, 189, 248, 0.12);
      opacity: 1;
    }

    .nav-hamburger {
      display: none;
      background: none;
      border: none;
      color: var(--text-primary);
      font-size: 24px;
      cursor: pointer;
      padding: 4px;
    }

    /* ─── Hero ─── */
    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 120px 24px 80px;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background:
        radial-gradient(ellipse at 30% 40%, var(--hero-glow) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 60%, var(--hero-warm-glow) 0%, transparent 50%);
      animation: heroShift 20s ease-in-out infinite alternate;
    }

    @keyframes heroShift {
      0% { transform: translate(0, 0) rotate(0deg); }
      100% { transform: translate(-2%, -2%) rotate(3deg); }
    }

    .hero-content { position: relative; z-index: 1; }

    .hero-profile-frame {
      width: 136px;
      height: 136px;
      margin: 0 auto 28px;
      padding: 5px;
      border: 1px solid rgba(56, 189, 248, 0.6);
      border-radius: 50%;
      background: rgba(56, 189, 248, 0.08);
      box-shadow: 0 0 0 10px rgba(56, 189, 248, 0.04), 0 0 36px rgba(56, 189, 248, 0.16);
    }
    .hero-profile-frame img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      object-fit: cover;
      background: var(--bg-card);
    }

    .hero-badge {
      display: inline-block;
      padding: 6px 16px;
      border-radius: 100px;
      background: rgba(56, 189, 248, 0.1);
      border: 1px solid rgba(56, 189, 248, 0.2);
      color: var(--accent);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      margin-bottom: 24px;
    }

    .hero h1 {
      font-size: clamp(40px, 7vw, 72px);
      font-weight: 800;
      letter-spacing: -1.5px;
      line-height: 1.1;
      margin-bottom: 16px;
    }

    .hero h1 span {
      background: linear-gradient(135deg, var(--accent), #38bdf8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero p {
      font-size: clamp(16px, 2vw, 20px);
      color: var(--text-secondary);
      max-width: 560px;
      margin: 0 auto 32px;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: 12px;
      font-size: 15px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: var(--transition);
      text-decoration: none;
    }

    .btn-primary {
      background: var(--accent);
      color: #000;
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 32px var(--accent-glow);
      opacity: 1;
    }

    .btn-secondary {
      background: var(--bg-card);
      color: var(--text-primary);
      border: 1px solid var(--border);
    }
    .btn-secondary:hover {
      transform: translateY(-2px);
      border-color: var(--accent);
      opacity: 1;
    }

    .btn-whatsapp {
      background: var(--green);
      color: #fff;
    }
    .btn-whatsapp:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 32px rgba(37, 211, 102, 0.3);
      opacity: 1;
    }

    .hero-stats {
      display: flex;
      gap: 40px;
      justify-content: center;
      margin-top: 48px;
    }
    .hero-stat strong {
      display: block;
      font-size: 28px;
      font-weight: 800;
      color: var(--text-primary);
    }
    .hero-stat span {
      font-size: 13px;
      color: var(--text-secondary);
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    /* ─── Section ─── */
    section { padding: 112px 0; }
    section:nth-of-type(even) { background: rgba(16, 24, 32, 0.38); }

    .section-label {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: var(--accent);
      margin-bottom: 8px;
    }

    .section-title {
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 700;
      letter-spacing: -0.5px;
      margin-bottom: 16px;
    }

    .section-desc {
      color: var(--text-secondary);
      font-size: 16px;
      max-width: 600px;
      margin-bottom: 48px;
    }

    /* ─── About ─── */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .about-text p { margin-bottom: 16px; color: var(--text-secondary); }
    .about-text strong { color: var(--text-primary); }

    .about-highlights {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .highlight-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
      text-align: center;
      transition: var(--transition);
    }
    .highlight-card:hover {
      transform: translateY(-4px);
      border-color: rgba(56, 189, 248, 0.2);
    }
    .highlight-card i {
      font-size: 28px;
      color: var(--accent);
      margin-bottom: 12px;
    }
    .highlight-card h4 { font-size: 15px; margin-bottom: 4px; }
    .highlight-card p { font-size: 13px; color: var(--text-secondary); }

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

    .skill-category {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px;
      transition: var(--transition);
    }
    .skill-category:hover { border-color: rgba(94, 234, 212, 0.32); transform: translateY(-3px); }

    .skill-category h4 {
      font-size: 14px;
      font-weight: 600;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .skill-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .skill-tag {
      padding: 6px 14px;
      border-radius: 8px;
      background: rgba(56, 189, 248, 0.06);
      border: 1px solid rgba(56, 189, 248, 0.1);
      font-size: 13px;
      color: var(--text-secondary);
      transition: var(--transition);
    }
    .skill-tag:hover {
      background: rgba(56, 189, 248, 0.12);
      color: var(--accent);
    }

    /* ─── Experience ─── */
    .timeline {
      position: relative;
      --tl-col: 56px;
    }

    .timeline::before {
      content: '';
      position: absolute;
      left: calc(var(--tl-col) / 2);
      top: 8px;
      bottom: 0;
      width: 1.5px;
      transform: translateX(-50%);
      background: linear-gradient(to bottom, var(--accent), transparent 100%);
    }

    .timeline-item {
      position: relative;
      margin-bottom: 40px;
      padding-left: var(--tl-col);
    }

    .timeline-item::before {
      content: '';
      position: absolute;
      left: calc(var(--tl-col) / 2);
      top: 8px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--accent);
      transform: translateX(-50%);
      box-shadow: 0 0 0 8px rgba(56, 189, 248, 0.1);
    }

    .timeline-item:first-child::before {
      animation: timelinePulse 2.2s ease-in-out infinite;
    }

    @keyframes timelinePulse {
      0%, 100% {
        transform: translateX(-50%) scale(1);
        box-shadow: 0 0 0 8px rgba(56, 189, 248, 0.1);
      }
      50% {
        transform: translateX(-50%) scale(1.25);
        box-shadow: 0 0 0 12px rgba(56, 189, 248, 0.16), 0 0 20px rgba(56, 189, 248, 0.45);
      }
    }

    .timeline-date {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 4px;
    }

    .timeline-company {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 2px;
    }

    .timeline-role {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 12px;
    }

    .timeline-details {
      list-style: none;
    }
    .timeline-details li {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 6px;
      padding-left: 20px;
      position: relative;
    }
    .timeline-details li::before {
      content: '→';
      position: absolute;
      left: 0;
      color: var(--accent);
    }

    /* ─── Education ─── */
    .edu-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }

    .edu-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px;
      transition: var(--transition);
    }
    .edu-card:hover { transform: translateY(-4px); }

    .edu-card h4 { font-size: 16px; margin-bottom: 4px; }
    .edu-card .edu-meta {
      font-size: 13px;
      color: var(--accent);
      margin-bottom: 8px;
    }
    .edu-card .edu-score {
      font-size: 13px;
      color: var(--text-secondary);
    }

    /* ─── Contact ─── */
    .contact-section {
      text-align: center;
      background: var(--bg-secondary);
      border-radius: var(--radius);
      padding: 64px 32px;
    }
    .contact-section h3 { font-size: 28px; margin-bottom: 12px; }
    .contact-section p { color: var(--text-secondary); margin-bottom: 32px; max-width: 480px; margin-left: auto; margin-right: auto; }
    .contact-links { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

    /* ─── WhatsApp Float ─── */
    .whatsapp-float {
      position: fixed;
      bottom: 24px;
      right: 24px;
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: var(--green);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 26px;
      text-decoration: none;
      box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
      transition: var(--transition);
      z-index: 99;
    }
    .whatsapp-float:hover {
      transform: scale(1.1);
      box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
      opacity: 1;
    }

    /* ─── Footer ─── */
    footer {
      text-align: center;
      padding: 32px 24px;
      color: var(--text-secondary);
      font-size: 13px;
      border-top: 1px solid var(--border);
    }

    /* ─── Scroll Animations ─── */
    .reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* ─── Responsive ─── */
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border);
        gap: 16px;
      }
      .nav-main-links,
      .nav-actions {
        width: 100%;
        flex-direction: column;
        gap: 16px;
      }
      .nav-actions {
        padding-top: 16px;
        border-top: 1px solid var(--border);
      }
      .nav-icon-link,
      .nav-resume { width: 100%; }
      .nav-icon-link { border-radius: 9px; }
      .nav-resume { justify-content: center; }
      .nav-links.open { display: flex; }
      .nav-hamburger { display: block; }

      .about-grid { grid-template-columns: 1fr; }
      .hero-stats { gap: 24px; }
      .hero-stat strong { font-size: 22px; }

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

    @media (max-width: 480px) {
      .about-highlights { grid-template-columns: 1fr; }
      .skills-grid { grid-template-columns: 1fr; }
      section { padding: 60px 0; }
      .hero { padding: 100px 16px 60px; }
    }

    @media (prefers-color-scheme: light) {
      :root {
        --bg-primary: #f4f8f7;
        --bg-secondary: #e6f0ee;
        --bg-card: #ffffff;
        --text-primary: #102127;
        --text-secondary: #52666b;
        --accent: #087f78;
        --accent-warm: #d94f67;
        --accent-glow: rgba(8, 127, 120, 0.2);
        --nav-bg: rgba(244, 248, 247, 0.86);
        --hero-glow: rgba(8, 127, 120, 0.11);
        --hero-warm-glow: rgba(217, 79, 103, 0.08);
        --border: rgba(16, 33, 39, 0.12);
      }

      .nav-logo-icon { color: #ffffff; }
      .nav-hamburger { color: var(--text-primary); }
      .nav-links { background: var(--nav-bg); }
      .btn-primary { color: #ffffff; }
      section:nth-of-type(even) { background: rgba(230, 240, 238, 0.56); }
      .contact-section { background: linear-gradient(135deg, #e6f0ee, #ffffff); }
    }