/* Scoped supporting screen styles; the shared shell stays independent. */
@scope (.legacy-content) {
  * {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: var(--font);
    background:
      radial-gradient(
        circle at top left,
        rgba(141, 199, 255, 0.12),
        transparent 26%
      ),
      radial-gradient(
        circle at 88% 8%,
        rgba(255, 207, 125, 0.12),
        transparent 20%
      ),
      linear-gradient(180deg, #0b1017 0%, #0a1017 52%, #080c12 100%);
    line-height: 1.5;
  }

  body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
      radial-gradient(
        circle at 20% 16%,
        rgba(255, 255, 255, 0.05),
        transparent 22%
      ),
      radial-gradient(
        circle at 78% 82%,
        rgba(255, 255, 255, 0.04),
        transparent 26%
      );
    opacity: 0.45;
  }

  a {
    color: inherit;
    text-decoration: none;
  }
  img {
    display: block;
    max-width: 100%;
  }
  button,
  textarea {
    font: inherit;
  }

  .container {
    width: min(1320px, calc(100% - 28px));
    margin: 0 auto;
  }

  body.details-collapsed [data-diagnostic="true"] {
    display: none;
  }

  header {
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--line);
    background: rgba(9, 13, 19, 0.88);
    backdrop-filter: blur(20px);
  }

  .nav {
    min-height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
  }

  .logo img {
    height: 60px;
    width: auto;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-menu a,
  .auth-links a {
    color: var(--muted);
    font-size: 0.96rem;
    padding: 10px 14px;
    border-radius: 999px;
    transition:
      background 0.18s ease,
      color 0.18s ease,
      transform 0.18s ease;
  }

  .nav-menu a:hover,
  .auth-links a:hover,
  .nav-menu a.active {
    color: var(--text);
    background: rgba(109, 178, 255, 0.12);
    transform: translateY(-1px);
  }

  .auth-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: transparent;
    color: var(--text);
    cursor: pointer;
  }

  main {
    padding: 22px 0 34px;
  }

  .hero {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    background:
      radial-gradient(
        circle at 12% 18%,
        rgba(141, 199, 255, 0.16),
        transparent 24%
      ),
      radial-gradient(
        circle at 82% 22%,
        rgba(255, 207, 125, 0.12),
        transparent 24%
      ),
      linear-gradient(180deg, rgba(18, 25, 36, 0.96), rgba(12, 17, 26, 0.98));
    box-shadow: var(--shadow);
    padding: clamp(26px, 5vw, 48px);
    isolation: isolate;
  }

  .hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(
        115deg,
        transparent 0 56%,
        rgba(255, 255, 255, 0.03) 64%,
        transparent 76%
      ),
      linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 26%);
    pointer-events: none;
  }

  .hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.8fr);
    gap: 22px;
    align-items: end;
  }

  .eyebrow,
  .chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border-radius: 999px;
    border: 1px solid rgba(124, 145, 179, 0.34);
    background: rgba(7, 13, 25, 0.65);
    padding: 8px 14px;
    font-family: var(--font);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #d8e1f8;
  }

  .eyebrow-dot,
  .status-dot {
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: var(--gold);
    box-shadow: 0 0 0 6px rgba(249, 180, 79, 0.12);
    flex: 0 0 auto;
  }

  .status-dot.live,
  .eyebrow-dot.live {
    background: var(--success);
    box-shadow: 0 0 0 6px rgba(74, 222, 128, 0.12);
  }

  h1 {
    margin: 16px 0 14px;
    font-size: clamp(2.6rem, 6vw, 5.4rem);
    line-height: 0.95;
    letter-spacing: -0.04em;
  }

  .hero p {
    max-width: 760px;
    margin: 0;
    color: #d4dcf0;
    font-size: 1.04rem;
  }

  .hero-copy strong {
    color: #ffffff;
  }

  .hero-side {
    display: grid;
    gap: 12px;
  }

  .hero-side-card,
  .card,
  .stat {
    border: 1px solid var(--line);
    background: var(--panel);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
  }

  .hero-side-card {
    padding: 16px 18px;
  }

  .hero-side-card h2,
  .section-title strong {
    margin: 0 0 10px;
    font-size: 0.95rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-family: var(--font);
    color: #d6def4;
  }

  .hero-side-card p,
  .hero-side-card li,
  .panel p,
  .tiny {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
  }

  .hero-side-card ul {
    margin: 0;
    padding-left: 18px;
    display: grid;
    gap: 8px;
  }

  .stats {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .stat {
    padding: 18px;
    background: linear-gradient(
      180deg,
      rgba(18, 25, 36, 0.96),
      rgba(13, 18, 27, 0.98)
    );
  }

  .stat label {
    display: block;
    margin-bottom: 6px;
    font-family: var(--font);
    color: var(--muted);
    font-size: 0.74rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .stat strong {
    display: block;
    font-size: 1.1rem;
    color: var(--text);
  }

  .stat span {
    display: block;
    margin-top: 8px;
    color: var(--muted);
    font-size: 0.88rem;
  }

  .workspace {
    margin-top: 18px;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.92fr);
    gap: 16px;
    align-items: start;
  }

  .card {
    overflow: hidden;
    background: linear-gradient(
      180deg,
      rgba(16, 22, 31, 0.96),
      rgba(12, 17, 26, 0.98)
    );
  }

  .card-header,
  .panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.015);
  }

  .section-title span {
    display: block;
    margin-top: 4px;
    color: var(--muted);
    font-size: 0.9rem;
  }

  .toolbar,
  .panel-actions,
  .chip-row,
  .quick-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
  }

  .btn {
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(18, 24, 35, 0.84);
    color: var(--text);
    padding: 11px 16px;
    cursor: pointer;
    transition:
      transform 0.18s ease,
      background 0.18s ease,
      border-color 0.18s ease;
    font-family: var(--font);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }

  .btn:hover {
    transform: translateY(-1px);
    background: rgba(109, 178, 255, 0.12);
    border-color: var(--line-strong);
  }

  .btn.primary {
    background: linear-gradient(
      135deg,
      rgba(141, 199, 255, 0.22),
      rgba(138, 226, 211, 0.12)
    );
    border-color: rgba(141, 199, 255, 0.32);
  }

  .chat-shell {
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    min-height: 780px;
  }

  .quick-row {
    padding: 14px 18px 0;
  }

  .chip {
    cursor: pointer;
    transition:
      transform 0.18s ease,
      border-color 0.18s ease,
      background 0.18s ease;
  }

  .chip:hover {
    transform: translateY(-1px);
    border-color: rgba(109, 178, 255, 0.5);
    background: rgba(109, 178, 255, 0.12);
  }

  .typing {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 12px 18px 0;
    font-family: var(--font);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    font-size: 0.78rem;
  }

  .typing-dots {
    display: inline-flex;
    gap: 5px;
  }

  .typing-dots i {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    animation: pulse 1.05s infinite;
  }

  .typing-dots i:nth-child(2) {
    animation-delay: 0.12s;
  }
  .typing-dots i:nth-child(3) {
    animation-delay: 0.24s;
  }

  @keyframes pulse {
    0%,
    80%,
    100% {
      transform: translateY(0);
      opacity: 0.4;
    }
    40% {
      transform: translateY(-4px);
      opacity: 1;
    }
  }

  .messages {
    padding: 16px 18px;
    overflow: auto;
    display: grid;
    gap: 12px;
    align-content: start;
  }

  .message {
    display: flex;
    gap: 12px;
    align-items: flex-end;
  }

  .message.user {
    justify-content: flex-end;
  }

  .avatar {
    width: 38px;
    height: 38px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.03);
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    font-family: var(--font);
    font-size: 0.82rem;
    color: #d9e2fa;
  }

  .bubble-wrap {
    max-width: min(82%, 760px);
  }

  .bubble {
    padding: 15px 17px;
    border-radius: 20px;
    border: 1px solid rgba(168, 183, 205, 0.18);
    background: rgba(18, 24, 35, 0.9);
    color: var(--text);
    white-space: pre-wrap;
    word-break: break-word;
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.16);
  }

  .message.user .bubble {
    background: linear-gradient(
      135deg,
      rgba(141, 199, 255, 0.18),
      rgba(138, 226, 211, 0.08)
    );
    border-color: rgba(141, 199, 255, 0.28);
  }

  .meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
  }

  .meta span {
    border-radius: 999px;
    border: 1px solid rgba(124, 145, 179, 0.24);
    padding: 4px 8px;
    color: var(--muted);
    font-family: var(--font);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }

  .composer {
    padding: 16px 18px 18px;
    border-top: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.015);
    display: grid;
    gap: 12px;
  }

  .composer textarea {
    width: 100%;
    min-height: 112px;
    resize: vertical;
    border-radius: 20px;
    border: 1px solid rgba(168, 183, 205, 0.2);
    background: rgba(13, 18, 27, 0.96);
    color: var(--text);
    padding: 16px 18px;
    outline: none;
    font-size: 1rem;
    line-height: 1.5;
  }

  .composer textarea:focus {
    border-color: rgba(109, 178, 255, 0.6);
    box-shadow: 0 0 0 1px rgba(109, 178, 255, 0.32);
  }

  .composer-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
  }

  .composer-note {
    color: var(--muted);
    font-size: 0.9rem;
  }

  .stack {
    display: grid;
    gap: 12px;
  }

  .panel {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: linear-gradient(
      180deg,
      rgba(16, 22, 31, 0.96),
      rgba(12, 17, 26, 0.98)
    );
    box-shadow: var(--shadow);
    overflow: hidden;
  }

  .panel-body {
    padding: 16px 18px;
    display: grid;
    gap: 12px;
  }

  .mono,
  pre,
  code {
    font-family: var(--font);
  }

  pre {
    margin: 0;
    color: #dbe4fa;
    font-size: 0.86rem;
    line-height: 1.55;
    white-space: pre-wrap;
    word-break: break-word;
  }

  .meter {
    height: 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    overflow: hidden;
    border: 1px solid rgba(124, 145, 179, 0.18);
  }

  .meter > div {
    height: 100%;
    width: 26%;
    background: linear-gradient(
      90deg,
      var(--success),
      var(--blue),
      var(--gold)
    );
  }

  .status-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .status-box {
    padding: 12px;
    border-radius: 16px;
    border: 1px solid rgba(124, 145, 179, 0.18);
    background: rgba(255, 255, 255, 0.02);
  }

  .status-box label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.72rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-family: var(--font);
  }

  .status-box strong,
  .status-box span {
    display: block;
  }

  .status-box span {
    margin-top: 4px;
    color: var(--muted);
    font-size: 0.88rem;
  }

  .file-list {
    display: grid;
    gap: 8px;
    max-height: 280px;
    overflow: auto;
  }

  .file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 11px 12px;
    border-radius: 14px;
    border: 1px solid rgba(124, 145, 179, 0.18);
    background: rgba(255, 255, 255, 0.02);
    color: #dde5fa;
    font-size: 0.9rem;
  }

  .file-item small {
    color: var(--muted);
    font-family: var(--font);
    font-size: 0.72rem;
    text-transform: uppercase;
  }

  .path {
    display: block;
    color: var(--muted);
    font-family: var(--font);
    font-size: 0.8rem;
    line-height: 1.6;
    word-break: break-word;
  }

  .command-list {
    display: grid;
    gap: 10px;
  }

  .command {
    border-radius: 16px;
    border: 1px solid rgba(124, 145, 179, 0.18);
    background: rgba(255, 255, 255, 0.02);
    padding: 12px;
  }

  .command strong {
    display: block;
    margin-bottom: 6px;
    font-size: 0.82rem;
    color: #eef2ff;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-family: var(--font);
  }

  footer {
    padding: 8px 0 28px;
    color: var(--muted);
    text-align: center;
    font-size: 0.9rem;
  }

  @media (max-width: 1180px) {
    .hero-grid,
    .workspace,
    .stats {
      grid-template-columns: 1fr;
    }

    .chat-shell {
      min-height: auto;
    }
  }

  @media (max-width: 920px) {
    .menu-toggle {
      display: inline-grid;
      place-items: center;
    }

    .nav-menu {
      position: fixed;
      left: 14px;
      right: 14px;
      top: calc(var(--header-h) - 2px);
      display: none;
      flex-direction: column;
      align-items: stretch;
      padding: 12px;
      background: rgba(7, 11, 22, 0.98);
      border: 1px solid var(--line);
      border-radius: 22px;
      box-shadow: var(--shadow);
    }

    .nav-menu.open {
      display: flex;
    }

    .auth-links {
      display: none;
    }

    h1 {
      font-size: clamp(2.4rem, 12vw, 4rem);
    }

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

    .bubble-wrap {
      max-width: 100%;
    }
  }
}