:root {
      color-scheme: dark;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: var(--bt-page);
      color: var(--bt-text);
      font-synthesis: none;
      text-rendering: optimizeLegibility;
    }

    * { box-sizing: border-box; }

    html[data-text-size="large"] { font-size: 18px; }
    html[data-contrast="high"] { color-scheme: dark; }
    html[data-contrast="high"] .login-card { border-color: color-mix(in srgb, var(--bt-border) 42%, transparent); }
    html[data-contrast="high"] .subtitle, html[data-contrast="high"] .demo-access span { color: var(--bt-text); }

    body {
      min-width: 320px;
      min-height: 100vh;
      margin: 0;
      background-color: var(--bt-page);
      background-image: linear-gradient(90deg, color-mix(in srgb, var(--bt-page) 3%, transparent) 35%, color-mix(in srgb, var(--bt-page) 10%, transparent) 53%, color-mix(in srgb, var(--bt-page) 28%, transparent) 100%), url("../Imagens/Background%20Login");
      background-position: center;
      background-repeat: no-repeat;
      background-size: cover;
    }

    main {
      min-height: 100vh;
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(360px, 440px);
      align-items: center;
      gap: clamp(24px, 5vw, 80px);
      padding: clamp(24px, 5vw, 76px);
    }

    .login-card {
      width: 100%;
      padding: clamp(28px, 4vw, 42px);
      border: 1px solid color-mix(in srgb, var(--bt-border) 14%, transparent);
      border-radius: 22px;
      background: color-mix(in srgb, var(--bt-page) 91%, transparent);
      box-shadow: 0 24px 80px rgba(0, 0, 0, .48), inset 0 1px var(--bt-accent-glow);
      backdrop-filter: blur(14px);
    }

    .eyebrow {
      margin: 0 0 10px;
      color: var(--bt-accent);
      font-size: .77rem;
      font-weight: 700;
      letter-spacing: .14em;
      text-transform: uppercase;
    }

    h1 {
      margin: 0;
      font-size: clamp(1.8rem, 3vw, 2.2rem);
      letter-spacing: -.045em;
      line-height: 1.15;
    }

    .subtitle {
      margin: 10px 0 30px;
      color: var(--bt-muted);
      font-size: .98rem;
      line-height: 1.55;
    }

    .field { margin-bottom: 19px; }

    label {
      display: block;
      margin-bottom: 8px;
      color: var(--bt-text);
      font-size: .88rem;
      font-weight: 600;
    }

    input {
      width: 100%;
      min-height: 50px;
      padding: 0 15px;
      border: 1px solid var(--bt-border);
      border-radius: 10px;
      outline: none;
      background: var(--bt-surface);
      color: var(--bt-text);
      font: inherit;
      transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
    }

    input::placeholder { color: var(--bt-muted); }
    input:focus { border-color: var(--bt-accent-border); box-shadow: 0 0 0 3px var(--bt-accent-glow); background: var(--bt-surface-soft); }

    .password-wrap { position: relative; }
    .password-wrap input { padding-right: 74px; }

    .show-password {
      position: absolute;
      top: 50%;
      right: 9px;
      transform: translateY(-50%);
      padding: 8px;
      border: 0;
      border-radius: 7px;
      background: transparent;
      color: var(--bt-accent);
      font: inherit;
      font-size: .78rem;
      font-weight: 650;
      cursor: pointer;
    }

    .show-password:hover { color: var(--bt-text); background: color-mix(in srgb, var(--bt-accent) 9%, transparent); }
    .show-password:focus-visible, a:focus-visible, .submit:focus-visible { outline: 2px solid var(--bt-accent-border); outline-offset: 3px; }

    .forgot-row { display: flex; justify-content: flex-end; margin: -5px 0 23px; }
    a { color: var(--bt-accent); text-decoration: none; }
    a:hover { color: var(--bt-text); text-decoration: underline; text-underline-offset: 3px; }

    .submit {
      width: 100%;
      min-height: 51px;
      border: 0;
      border-radius: 10px;
      background: var(--bt-accent-button);
      color: white;
      font: inherit;
      font-size: .98rem;
      font-weight: 720;
      cursor: pointer;
      box-shadow: 0 8px 24px var(--bt-accent-glow);
      transition: background .18s ease, transform .18s ease;
    }

    .submit:hover { background: var(--bt-accent-button); transform: translateY(-1px); }
    .signup { margin: 24px 0 0; color: var(--bt-muted); text-align: center; font-size: .9rem; }
    .signup a { margin-left: 4px; font-weight: 700; }
    .demo-access { margin-top: 20px; padding: 13px 14px; border: 1px solid color-mix(in srgb, var(--bt-accent-border) 24%, transparent); border-radius: 12px; background: color-mix(in srgb, var(--bt-surface-soft) 38%, transparent); }
    .demo-access > div { display: grid; gap: 3px; }
    .demo-access strong { color: var(--bt-text); font-size: .8rem; }
    .demo-access span { color: var(--bt-muted); font-size: .76rem; line-height: 1.45; }
    .demo-access button { margin-top: 10px; padding: 0; border: 0; background: none; color: var(--bt-accent); font: inherit; font-size: .82rem; font-weight: 700; cursor: pointer; }
    .demo-access button:hover { color: var(--bt-text); text-decoration: underline; text-underline-offset: 3px; }
    .login-message { display: none; margin: 8px 0 0; color: var(--bt-warning); font-size: .8rem; line-height: 1.45; }
    .login-message.visible { display: block; }

    .signup-modal {
      width: min(560px, calc(100% - 32px));
      max-width: none;
      max-height: min(92dvh, 900px);
      padding: 0;
      overflow: hidden;
      border: 1px solid color-mix(in srgb, var(--bt-border) 17%, transparent);
      border-radius: 22px;
      background: var(--bt-surface);
      color: var(--bt-text);
      box-shadow: 0 28px 90px rgba(0, 0, 0, .58);
    }

    .signup-modal::backdrop { background: rgba(0, 0, 0, .68); backdrop-filter: blur(3px); }
    .signup-modal[open] { display: flex; flex-direction: column; }
    .modal-heading { display: flex; flex: 0 0 auto; justify-content: space-between; gap: 20px; padding: 27px 30px 17px; }
    .modal-heading .eyebrow { margin-bottom: 7px; }
    .modal-heading h2 { margin: 0; font-size: 1.75rem; letter-spacing: -.04em; }
    .modal-intro { margin: 8px 0 0; color: var(--bt-muted); font-size: .92rem; line-height: 1.5; }

    .close-modal {
      flex: 0 0 auto;
      width: 44px;
      height: 44px;
      margin: 0 -8px 0 0;
      border: 1px solid var(--bt-border);
      border-radius: 11px;
      background: var(--bt-surface);
      color: var(--bt-text);
      font: inherit;
      font-size: 1.55rem;
      line-height: 1;
      cursor: pointer;
    }

    .close-modal:hover { border-color: var(--bt-accent-border); color: var(--bt-accent); }
    #signup-form { display: flex; min-height: 0; flex: 1 1 auto; flex-direction: column; }
    .modal-fields { min-height: 0; overflow-y: auto; padding: 0 30px 4px; scrollbar-color: var(--bt-scroll-thumb) var(--bt-scroll-track); }
    .modal-fields .field { margin-bottom: 16px; }
    .modal-fields input, .modal-fields select, .modal-fields textarea {
      width: 100%;
      min-height: 47px;
      padding: 11px 14px;
      border: 1px solid var(--bt-border);
      border-radius: 10px;
      outline: none;
      background: var(--bt-surface);
      color: var(--bt-text);
      font: inherit;
      font-size: .92rem;
    }

    .modal-fields textarea { min-height: 68px; resize: vertical; }
    .modal-fields select:focus, .modal-fields textarea:focus, .modal-fields input:focus { border-color: var(--bt-accent-border); box-shadow: 0 0 0 3px var(--bt-accent-glow); }
    .modal-fields select:invalid { color: var(--bt-muted); }
    .modal-fields option { color: var(--bt-text); background: var(--bt-surface); }
    .optional { color: var(--bt-muted); font-weight: 400; }
    .modal-footer { flex: 0 0 auto; padding: 12px 30px 24px; border-top: 1px solid color-mix(in srgb, var(--bt-border) 10%, transparent); background: var(--bt-surface); }
    .modal-footer .submit { min-height: 49px; }
    .modal-footer .signup { margin: 15px 0 0; }
    .form-message { display: none; margin: 0 0 10px; color: var(--bt-accent); font-size: .88rem; line-height: 1.45; }
    .form-message.visible { display: block; }
    .signup-modal:focus-visible { outline: 2px solid var(--bt-accent-border); outline-offset: 2px; }

    @media (max-width: 760px) {
      body {
        background-image: linear-gradient(180deg, color-mix(in srgb, var(--bt-page) 25%, transparent), color-mix(in srgb, var(--bt-page) 66%, transparent) 45%, var(--bt-page) 100%), url("../Imagens/Background%20Login");
        background-position: 34% center;
        background-size: auto 100vh;
      }

      main {
        min-height: 100svh;
        min-height: 100dvh;
        grid-template-columns: 1fr;
        align-content: space-between;
        gap: 32px;
        padding: max(20px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
      }

      .login-card { justify-self: center; max-width: 440px; padding: clamp(22px, 7vw, 29px) clamp(18px, 6vw, 24px); }
      .subtitle { margin-bottom: 25px; }
      .signup-modal { width: calc(100% - 24px); max-height: 94dvh; border-radius: 18px; }
      .modal-heading { padding: 22px 21px 15px; }
      .modal-fields { padding: 0 21px 4px; }
      .modal-footer { padding: 11px 21px 19px; }
    }

    @media (max-width: 380px) {
      main { padding-inline: 13px; }
      .login-card { padding: 25px 19px; }
      .signup-modal { width: calc(100% - 16px); max-height: 96dvh; }
      .modal-heading { padding-inline: 17px; }
      .modal-fields { padding-inline: 17px; }
      .modal-footer { padding-inline: 17px; }
    }