:root {
      color-scheme: dark;
      --bg: #0b1020;
      --surface: rgba(18, 26, 46, 0.88);
      --surface-2: #111a2e;
      --text: #f3f6ff;
      --muted: #9aa8c2;
      --line: rgba(164, 181, 216,  0.16);
      --accent: #6d8cff;
      --accent-2: #8d6bff;
      --danger: #ff8d9b;
      --radius: 22px;
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: var(--text);
      background:
        radial-gradient(ellipse at 12% 8%, rgba(91, 111, 255, .16), transparent 34%),
        radial-gradient(ellipse at 88% 80%, rgba(141, 107, 255, .12), transparent 32%),
        var(--bg);
    }

    a { color: inherit; text-decoration: none; }

    .site-header {
      width: min(1180px, calc(100% - 48px));
      margin: 0 auto;
      min-height: 92px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .upload-layout {
      width: min(100%, 1000px);
      /*display: grid;*/
      grid-template-columns: 1fr 420px;
      align-items: center;
      gap: clamp(42px, 8vw, 100px);
      /*border: 1px solid green;*/
    }

    .upload-card {
      padding: clamp(26px, 4vw, 38px);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      box-shadow: 0 28px 80px rgba(0,0,0,.28);
      backdrop-filter: blur(18px);
      /*border: 1px solid red;*/
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-size: 1.08rem;
      font-weight: 800;
      letter-spacing: .12em;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow: 0 8px 28px rgba(109, 140, 255, .26);
      color: white;
      font-size: 1.1rem;
      letter-spacing: 0;
    }

    .nav {
      display: flex;
      align-items: center;
      gap: clamp(18px, 3vw, 34px);
      color: var(--muted);
      font-size: .92rem;
    }

    .nav a { transition: color .2s ease; }
    .nav a:hover, .nav a:focus-visible { color: var(--text); }

    .header-cta {
      padding: 10px 15px;
      border: 1px solid var(--line);
      border-radius: 11px;
      color: var(--text) !important;
      background: rgba(255,255,255,.035);
    }

    main {
      min-height: calc(100vh - 92px);
      display: grid;
      place-items: center;
      padding: 42px 24px 72px;
    }

    .login-layout {
      width: min(100%, 1000px);
      display: grid;
      grid-template-columns: 1fr 420px;
      align-items: center;
      gap: clamp(42px, 8vw, 100px);
    }

    .intro { max-width: 470px; }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      margin-bottom: 20px;
      color: #aebdff;
      font-size: .78rem;
      font-weight: 700;
      letter-spacing: .14em;
      text-transform: uppercase;
    }

    .eyebrow::before {
      content: "";
      width: 24px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    h1 {
      margin: 0;
      max-width: 560px;
      font-size: clamp(2.55rem, 5vw, 4.25rem);
      line-height: 1.04;
      letter-spacing: -.055em;
    }

    h1 span {
      background: linear-gradient(100deg, #a8b8ff, #b49aff 70%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .intro p {
      max-width: 420px;
      margin: 22px 0 0;
      color: var(--muted);
      font-size: 1.02rem;
      line-height: 1.8;
    }

    .trust-note {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 34px;
      color: #aebbd2;
      font-size: .85rem;
    }

    .trust-icon {
      width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      border: 1px solid var(--line);
      border-radius: 10px;
      color: #aebdff;
      background: rgba(255,255,255,.035);
    }

    .login-card {
      padding: clamp(26px, 4vw, 38px);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      box-shadow: 0 28px 80px rgba(0,0,0,.28);
      backdrop-filter: blur(18px);
    }

    .card-heading { margin-bottom: 28px; }
    .card-heading h2 {
      margin: 0 0 8px;
      font-size: 1.65rem;
      letter-spacing: -.035em;
    }
    .card-heading p {
      margin: 0;
      color: var(--muted);
      font-size: .92rem;
    }

    .field { margin-bottom: 19px; }
    label {
      display: block;
      margin-bottom: 9px;
      color: #dce4f5;
      font-size: .87rem;
      font-weight: 600;
    }

    .input-wrap { position: relative; }
    input[type="email"], input[type="password"], input[type="text"] {
      width: 100%;
      min-height: 49px;
      padding: 0 14px;
      border: 1px solid rgba(164,181,216,.2);
      border-radius: 12px;
      outline: none;
      color: var(--text);
      background: rgba(7, 12, 25, .58);
      font: inherit;
      transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }

    input::placeholder { color: #687792; }
    input:focus {
      border-color: var(--accent);
      background: rgba(7, 12, 25, .82);
      box-shadow: 0 0 0 4px rgba(109,140,255,.13);
    }

    .password-input { padding-right: 76px !important; }
    .toggle-password {
      position: absolute;
      top: 50%;
      right: 12px;
      transform: translateY(-50%);
      padding: 5px;
      border: 0;
      color: #aebdff;
      background: transparent;
      font: inherit;
      font-size: .78rem;
      cursor: pointer;
    }

    .form-options {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin: 5px 0 23px;
      font-size: .82rem;
    }

    .remember {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin: 0;
      color: var(--muted);
      font-weight: 400;
      cursor: pointer;
    }

    .remember input { accent-color: var(--accent); }
    .text-link { color: #aebdff; }
    .text-link:hover { color: white; text-decoration: underline; }

    .submit-btn {
      width: 100%;
      min-height: 51px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      border: 0;
      border-radius: 12px;
      color: white;
      background: linear-gradient(100deg, #6485ff, #8567f7);
      box-shadow: 0 10px 25px rgba(104, 125, 255, .22);
      font: inherit;
      font-weight: 700;
      cursor: pointer;
      transition: transform .2s ease, filter .2s ease, box-shadow .2s ease;
    }

    .submit-btn:hover {
      transform: translateY(-1px);
      filter: brightness(1.08);
      box-shadow: 0 14px 30px rgba(104, 125, 255, .3);
    }
    .submit-btn:active { transform: translateY(0); }

    .form-message {
      min-height: 20px;
      margin: 12px 0 0;
      color: var(--danger);
      font-size: .82rem;
      line-height: 1.5;
    }

    .divider {
      display: flex;
      align-items: center;
      gap: 14px;
      margin: 21px 0;
      color: #74829b;
      font-size: .77rem;
    }
    .divider::before, .divider::after {
      content: "";
      flex: 1;
      height: 1px;
      background: var(--line);
    }

    .signup {
      margin: 0;
      color: var(--muted);
      text-align: center;
      font-size: .87rem;
    }

    .card-footer {
      margin-top: 24px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      color: #74829b;
      text-align: center;
      font-size: .75rem;
      line-height: 1.6;
      font-family: monospace;
    }

    :focus-visible { outline: 2px solid #aebdff; outline-offset: 3px; }

    @media (max-width: 800px) {
      .login-layout {
        grid-template-columns: 1fr;
        max-width: 460px;
        gap: 34px;
      }
      .intro { text-align: center; margin: 0 auto; }
      .intro p { margin-left: auto; margin-right: auto; }
      .eyebrow { justify-content: center; }
      .trust-note { justify-content: center; margin-top: 22px; }
      main { padding-top: 28px; }
    }

    @media (max-width: 560px) {
      .site-header {
        width: calc(100% - 32px);
        min-height: 78px;
        flex-wrap: wrap;
        padding: 15px 0;
        gap: 16px;
      }
      .nav { width: 100%; justify-content: space-between; gap: 12px; font-size: .83rem; }
      .header-cta { padding: 7px 10px; }
      main { min-height: auto; padding: 34px 16px 48px; }
      .login-card { padding: 25px 21px; }
      h1 { font-size: 2.65rem; }
      .form-options { align-items: flex-start; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
    }

/*############ drop-area #######################*/

    #drop-area {
      border: 3px dashed #888;
      padding: 30px;
      text-align: center;
      border-radius: 10px;
      background: #11192c;
    }
    #drop-area.highlight { background-color: #11192c; border-color: #06c; }
    #fileElem { display: none; }
    #fileList, 
    #uploadedList { margin-top:0px;width:100%; }
    .file-item, .uploaded-item { margin: 3px;list-style: circle; }
    #progress-container { margin-top: 20px; display:inline-block; }
    #progress-bar { width: 100%; background: #eee; border-radius: 5px; overflow: hidden; }
    #progress-bar-fill {
      height: 20px; width: 0%;
      background: #4caf50; color: #fff;
      text-align: center; line-height: 20px;
      transition: width 0.3s;
    }
    
    .file-inviato{
        color: #333333;
        padding: 0px;
    }