@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

    :root {
      --bg: #02070d;
      --panel: rgba(5, 18, 31, .92);
      --panel-2: rgba(7, 29, 48, .84);
      --panel-3: rgba(4, 13, 23, .78);
      --line: #123a5c;
      --line-strong: #087dff;
      --blue: #087dff;
      --cyan: #13d9ff;
      --violet: #965cff;
      --text: #f5f9ff;
      --muted: #a9b6c9;
      --soft: #d7ddeb;
      --ok: #56f07b;
      --warn: #ffa927;
      --danger: #ff4c4c;
      --shadow: 0 22px 70px rgba(0, 0, 0, .45);
      --radius: 14px;
    }

    * { box-sizing: border-box; }
html { scroll-behavior: smooth; }
    html,
    body {
      background-color: #02070d;
      scrollbar-width: thin;
      scrollbar-color: #0b7ee8 transparent;
    }

    html::-webkit-scrollbar,
    body::-webkit-scrollbar,
    *::-webkit-scrollbar {
      width: 10px;
      height: 10px;
    }

    html::-webkit-scrollbar-track,
    body::-webkit-scrollbar-track,
    *::-webkit-scrollbar-track {
      background: transparent !important;
      border-radius: 999px;
    }

    html::-webkit-scrollbar-corner,
    body::-webkit-scrollbar-corner,
    *::-webkit-scrollbar-corner {
      background: transparent !important;
    }

    html::-webkit-scrollbar-thumb,
    body::-webkit-scrollbar-thumb,
    *::-webkit-scrollbar-thumb {
      background: linear-gradient(180deg, #0b8dff, #0757bd);
      border: 2px solid transparent;
      background-clip: padding-box;
      border-radius: 999px;
    }

    html::-webkit-scrollbar-thumb:hover,
    body::-webkit-scrollbar-thumb:hover,
    *::-webkit-scrollbar-thumb:hover {
      background: linear-gradient(180deg, #13d9ff, #087dff);
    }
    body {
      margin: 0;
      min-height: 100vh;
      font-family: Inter, Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 28% -8%, rgba(0, 128, 255, .22), transparent 34%),
        radial-gradient(circle at 88% 14%, rgba(0, 217, 255, .12), transparent 28%),
        linear-gradient(135deg, #02070d 0%, #010409 48%, #000 100%);
    }

    button, input, textarea { font: inherit; }
    button { cursor: pointer; }
    a { color: inherit; }

    .app {
      width: min(1320px, calc(100% - 32px));
      margin: 0 auto;
      padding: 24px 0 28px;
    }

    .topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 18px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 14px;
      min-width: 0;
    }

    .bot-logo {
      position: relative;
      width: 52px;
      height: 52px;
      border: 2px solid var(--blue);
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: var(--blue);
      box-shadow: 0 0 24px rgba(8, 125, 255, .42);
      flex: 0 0 auto;
    }

    .bot-logo::before {
      content: "";
      width: 28px;
      height: 22px;
      border: 2px solid currentColor;
      border-radius: 7px;
      background:
        radial-gradient(circle at 8px 10px, currentColor 0 2px, transparent 2.5px),
        radial-gradient(circle at 20px 10px, currentColor 0 2px, transparent 2.5px);
    }

    .bot-logo::after {
      content: "";
      position: absolute;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: currentColor;
      top: 4px;
      box-shadow: -18px 36px 0 currentColor, 0 36px 0 currentColor, 18px 36px 0 currentColor;
    }

    .brand-logo {
      width: 82px;
      height: 82px;
      border-radius: 18px;
      object-fit: cover;
      flex: 0 0 auto;
      filter: drop-shadow(0 0 18px rgba(8, 125, 255, .36));
    }

    .brand-title {
      font-size: clamp(24px, 3vw, 32px);
      line-height: 1.05;
      font-weight: 800;
      white-space: nowrap;
    }

    .brand-title span { color: var(--blue); }
    .brand-subtitle {
      margin-top: 6px;
      color: var(--muted);
      font-size: 14px;
    }

    .system-pill {
      border: 1px solid #0b456f;
      border-radius: 10px;
      padding: 11px 16px;
      color: var(--cyan);
      background: rgba(4, 19, 32, .68);
      font-weight: 600;
      white-space: nowrap;
    }

    .hero {
      display: grid;
      grid-template-columns: minmax(230px, 340px) 1fr;
      gap: clamp(18px, 3vw, 42px);
      align-items: center;
      border: 1px solid var(--line-strong);
      border-radius: 16px;
      background:
        linear-gradient(110deg, rgba(5, 23, 38, .95), rgba(5, 34, 57, .72)),
        radial-gradient(circle at 20% 50%, rgba(8, 125, 255, .16), transparent 42%);
      padding: clamp(16px, 2.5vw, 24px) clamp(18px, 4vw, 44px);
      margin-bottom: 18px;
      box-shadow: inset 0 0 45px rgba(0, 132, 255, .12), var(--shadow);
      overflow: hidden;
    }

    .car-visual {
      min-height: 145px;
      border-radius: 12px;
      background:
        linear-gradient(155deg, rgba(255, 255, 255, .92), rgba(160, 168, 176, .72) 52%, rgba(26, 35, 44, .15) 53%),
        radial-gradient(ellipse at 35% 75%, #10161c 0 8%, transparent 9%),
        radial-gradient(ellipse at 78% 75%, #10161c 0 8%, transparent 9%),
        linear-gradient(90deg, transparent 0 14%, #eff3f5 15% 80%, transparent 81%);
      clip-path: polygon(3% 58%, 12% 41%, 29% 31%, 58% 23%, 80% 35%, 93% 53%, 96% 70%, 88% 75%, 81% 67%, 72% 67%, 64% 76%, 43% 76%, 35% 67%, 26% 67%, 17% 76%, 5% 71%);
      filter: drop-shadow(0 24px 16px rgba(0, 0, 0, .45));
    }

    .hero-title {
      font-size: clamp(26px, 3.5vw, 34px);
      font-weight: 800;
      margin-bottom: 24px;
    }

    .facts {
      display: grid;
      grid-template-columns: repeat(4, minmax(110px, 1fr));
      gap: 16px;
    }

    .fact {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--muted);
      min-width: 0;
    }

    .fact svg {
      width: 28px;
      height: 28px;
      color: #d7d4ea;
      flex: 0 0 auto;
    }

    .fact strong {
      display: block;
      margin-top: 5px;
      color: #fff;
      font-size: 22px;
      line-height: 1.1;
    }

    .workspace {
      display: grid;
      grid-template-columns: 255px minmax(0, 1fr);
      gap: 18px;
    }

    .side {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .panel {
      border: 1px solid var(--line);
      background: linear-gradient(145deg, var(--panel), rgba(2, 13, 22, .94));
      border-radius: var(--radius);
      box-shadow: 0 14px 44px rgba(0, 0, 0, .23);
    }

    .nav { padding: 12px; }

    .nav button {
      width: 100%;
      height: 50px;
      border: 0;
      background: transparent;
      color: #dce4f0;
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 0 14px;
      border-radius: 10px;
      font-size: 16px;
      text-align: left;
      transition: background .18s, box-shadow .18s, color .18s;
    }

    .nav button svg {
      width: 23px;
      height: 23px;
      color: #e8ecf7;
      flex: 0 0 auto;
    }

    .nav button.active,
    .nav button:hover {
      background: linear-gradient(90deg, #0766f2, #07386f);
      box-shadow: inset 0 0 0 1px var(--blue), 0 0 22px rgba(8, 125, 255, .22);
      color: white;
    }

    .sound-card {
      padding: 18px;
      text-align: center;
      border-color: #9554ff;
      background:
        radial-gradient(circle at 50% 54%, rgba(151, 89, 255, .2), transparent 42%),
        linear-gradient(145deg, rgba(9, 21, 38, .95), rgba(3, 11, 19, .95));
    }

    .sound-card h3 {
      margin: 0 0 8px;
      font-size: 17px;
    }

    .sound-card p {
      color: var(--soft);
      margin: 8px 0;
      line-height: 1.45;
    }

    .rings {
      width: 154px;
      height: 154px;
      margin: 16px auto;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background:
        repeating-radial-gradient(circle, rgba(151, 89, 255, .92) 0 2px, transparent 3px 11px),
        radial-gradient(circle, #151d43 0, #071221 64%);
      box-shadow: 0 0 36px rgba(8, 125, 255, .48);
      animation: pulse 2.6s ease-in-out infinite;
    }

    @keyframes pulse {
      0%, 100% { transform: scale(1); filter: brightness(1); }
      50% { transform: scale(1.025); filter: brightness(1.18); }
    }

    .rings .listen { font-size: 13px; }
    .rings .mic {
      font-size: 42px;
      color: #9f7cff;
      text-shadow: 0 0 14px #008cff;
    }

    .wave {
      height: 42px;
      margin: 8px 0;
      background: repeating-linear-gradient(90deg, #0787ff 0 3px, transparent 3px 12px);
      clip-path: polygon(0 55%,4% 35%,8% 75%,12% 25%,16% 65%,20% 45%,24% 80%,28% 20%,32% 60%,36% 38%,40% 74%,44% 30%,48% 70%,52% 28%,56% 62%,60% 44%,64% 78%,68% 20%,72% 55%,76% 35%,80% 75%,84% 24%,88% 58%,92% 38%,96% 70%,100% 48%,100% 100%,0 100%);
      animation: wave 1.8s steps(2) infinite;
    }

    @keyframes wave { 50% { transform: scaleY(.72); } }
    .sound-link { color: var(--cyan); text-decoration: none; }

    .content {
      min-width: 0;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .main-panel {
      min-height: 640px;
      padding: clamp(16px, 2.4vw, 22px);
    }

    .view { display: none; }
    .view.active { display: block; }

    .head {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: flex-start;
      margin-bottom: 18px;
    }

    .head h1 {
      font-size: clamp(24px, 3vw, 30px);
      margin: 0 0 7px;
      letter-spacing: 0;
    }

    .head p {
      margin: 0;
      color: var(--muted);
    }

    .btn {
      border: 1px solid #173c61;
      background: #071725;
      color: white;
      border-radius: 10px;
      padding: 12px 16px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      text-decoration: none;
      transition: transform .18s, border-color .18s, background .18s;
    }

    .btn:hover {
      transform: translateY(-1px);
      border-color: var(--blue);
      background: #0a2035;
    }

    .btn.blue {
      background: linear-gradient(180deg, #087dff, #064cbf);
      border-color: var(--blue);
    }

    .search {
      display: flex;
      gap: 12px;
      margin-bottom: 16px;
    }

    .search input,
    .composer input {
      width: 100%;
      border: 1px solid var(--line);
      background: #04111d;
      border-radius: 10px;
      color: white;
      outline: none;
    }

    .search input {
      padding: 14px 16px;
      font-size: 15px;
    }

    .search input:focus,
    .composer input:focus { border-color: var(--blue); }

    .grid-2 {
      display: grid;
      grid-template-columns: minmax(0, 1.55fr) minmax(260px, .85fr);
      gap: 16px;
    }

    .card {
      border: 1px solid var(--line);
      background: linear-gradient(145deg, var(--panel-2), rgba(4, 17, 29, .9));
      border-radius: 12px;
      padding: 18px;
      min-width: 0;
    }

    .card h2,
    .card h3 {
      margin: 0 0 10px;
    }

    .card p {
      color: var(--soft);
      line-height: 1.55;
      margin: 7px 0;
    }

    .car-info {
      display: grid;
      grid-template-columns: 1fr minmax(190px, 270px);
      gap: 16px;
      align-items: center;
      margin-bottom: 14px;
    }

    .info-table {
      display: grid;
      grid-template-columns: 130px 1fr;
      gap: 9px 16px;
    }

    .info-table span:nth-child(odd) { color: var(--soft); }

    .car-mini {
      min-height: 160px;
      border-radius: 12px;
      background:
        linear-gradient(155deg, rgba(255, 255, 255, .92), rgba(160, 168, 176, .72) 52%, rgba(26, 35, 44, .15) 53%),
        radial-gradient(ellipse at 35% 75%, #10161c 0 8%, transparent 9%),
        radial-gradient(ellipse at 78% 75%, #10161c 0 8%, transparent 9%);
      clip-path: polygon(3% 58%, 12% 41%, 29% 31%, 58% 23%, 80% 35%, 93% 53%, 96% 70%, 88% 75%, 81% 67%, 72% 67%, 64% 76%, 43% 76%, 35% 67%, 26% 67%, 17% 76%, 5% 71%);
    }

    .spec-list {
      display: grid;
      gap: 12px;
    }

    .spec-list div {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      color: var(--soft);
    }

    .spec-list b { color: white; text-align: right; }

    .quick-grid {
      display: grid;
      grid-template-columns: repeat(5, minmax(90px, 1fr));
      gap: 12px;
      margin-top: 12px;
    }

    .quick {
      min-height: 92px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: var(--panel-3);
      display: grid;
      place-items: center;
      text-align: center;
      gap: 6px;
      padding: 10px;
      color: var(--soft);
      font-size: 14px;
    }

    .quick svg { width: 28px; height: 28px; color: white; }

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

    .row {
      display: grid;
      grid-template-columns: 138px 1fr 120px;
      gap: 16px;
      align-items: center;
      border: 1px solid var(--line);
      background: rgba(7, 26, 42, .72);
      border-radius: 12px;
      padding: 12px 16px;
      min-width: 0;
    }

    .row.featured {
      border-color: var(--blue);
      box-shadow: inset 0 0 0 1px rgba(8, 125, 255, .35);
    }

    .thumb {
      width: 125px;
      height: 78px;
      object-fit: cover;
      border-radius: 8px;
      background:
        radial-gradient(circle at 35% 45%, rgba(255, 255, 255, .28), transparent 18%),
        linear-gradient(135deg, #0a0f14, #2e3843 48%, #080b0f);
      position: relative;
      overflow: hidden;
    }

    .thumb::after {
      content: "";
      position: absolute;
      inset: 14px 22px;
      border: 2px solid rgba(255, 255, 255, .18);
      border-radius: 50%;
      box-shadow: 34px 5px 0 rgba(8, 125, 255, .32), 64px 18px 0 rgba(255, 169, 39, .28);
    }

    .row h3,
    .service h3,
    .manual h3,
    .video-title {
      margin: 0 0 6px;
      font-size: 17px;
      line-height: 1.3;
    }

    .row p,
    .service p,
    .manual p {
      margin: 0;
      color: var(--muted);
      line-height: 1.45;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      background: #0b315d;
      color: #b9d9ff;
      border-radius: 7px;
      padding: 4px 8px;
      font-size: 12px;
      white-space: nowrap;
    }

    .ok { color: var(--ok); font-weight: 700; }
    .warn { color: var(--warn); }
    .danger { color: var(--danger); }

    .service {
      display: grid;
      grid-template-columns: 70px 1fr 160px;
      gap: 16px;
      align-items: center;
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 14px;
      margin-bottom: 10px;
      background: rgba(7, 26, 42, .72);
    }

    .square {
      width: 64px;
      height: 64px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: #123a69;
      color: white;
      font-size: 28px;
      font-weight: 800;
    }

    .square.green { background: #0d5a36; }
    .square.violet { background: #3c1d6f; }
    .square.orange { background: #6b3a11; }
    .square.cyan { background: #056466; }

    .alert {
      border-color: #8c591a;
      background: linear-gradient(90deg, rgba(255, 169, 39, .15), rgba(255, 169, 39, .04));
      margin-bottom: 12px;
    }

    .dtc {
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 18px;
      margin-bottom: 12px;
      background: rgba(7, 26, 42, .72);
    }

    .dtc-top {
      display: grid;
      grid-template-columns: 155px 1fr;
      gap: 18px;
      align-items: start;
    }

    .code {
      font-size: 24px;
      font-weight: 800;
      white-space: nowrap;
    }

    .dtc h3 { margin: 0 0 6px; }
    .dtc p { color: var(--muted); margin: 0; line-height: 1.45; }

    .cols {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 14px;
      color: var(--muted);
      line-height: 1.65;
      border-top: 1px solid var(--line);
      padding-top: 14px;
    }

    .manuals {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
    }

    .manual {
      min-height: 210px;
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 14px;
      background: rgba(7, 26, 42, .72);
    }

    .manual-pic {
      height: 86px;
      border-radius: 8px;
      margin: 10px 0;
      background:
        radial-gradient(circle at 35% 45%, rgba(255, 255, 255, .3), transparent 18%),
        linear-gradient(135deg, #dadde2, #707986 52%, #111923);
    }

    .chat-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(280px, .85fr);
      gap: 16px;
    }

    .messages {
      height: min(52vh, 520px);
      min-height: 330px;
      overflow-y: auto;
      padding-right: 8px;
      scroll-behavior: smooth;
    }

    .messages::-webkit-scrollbar { width: 8px; }
    .messages::-webkit-scrollbar-thumb { background: #0b456f; border-radius: 10px; }

    .bubble {
      background: rgba(8, 35, 58, .9);
      border: 1px solid #174466;
      border-radius: 14px;
      padding: 16px;
      margin-bottom: 12px;
      line-height: 1.6;
      color: var(--soft);
    }

    .bubble.user {
      background: linear-gradient(180deg, #0869f3, #064bbf);
      color: white;
      margin-left: min(90px, 14%);
      border-color: var(--blue);
    }

    .bubble small {
      float: right;
      color: rgba(255, 255, 255, .7);
    }

    .spline-box {
      position: relative;
      height: 218px;
      border-radius: 10px;
      overflow: hidden;
      border: 1px solid var(--line);
      background:
        radial-gradient(circle at 50% 42%, rgba(8, 125, 255, .22), transparent 28%),
        linear-gradient(135deg, #08131f, #101923);
      display: grid;
      place-items: center;
      color: var(--muted);
      text-align: center;
      padding: 22px;
    }

    .spline-box iframe {
      width: 100%;
      height: 100%;
      border: 0;
      position: absolute;
      inset: 0;
    }

    .steps p {
      display: grid;
      grid-template-columns: 26px 1fr;
      gap: 9px;
      align-items: center;
    }

    .num {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: var(--blue);
      color: white;
      font-weight: 800;
      font-size: 12px;
    }

    .settings {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .profile-actions,
    .auth-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 12px;
    }

    .auth-modal {
      position: fixed;
      inset: 0;
      z-index: 120;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 20px;
      background: rgba(0, 0, 0, .64);
      backdrop-filter: blur(10px);
    }

    .auth-modal.show {
      display: flex;
    }

    .auth-dialog {
      position: relative;
      width: min(440px, 100%);
      border: 1px solid var(--line-strong);
      border-radius: 14px;
      background: linear-gradient(145deg, rgba(7, 29, 48, .98), rgba(3, 12, 22, .98));
      box-shadow: 0 24px 80px rgba(0, 0, 0, .55), 0 0 32px rgba(8, 125, 255, .18);
      padding: 22px;
    }

    .auth-dialog h2 {
      margin: 0 0 8px;
      font-size: 24px;
    }

    .auth-dialog p {
      margin: 0 0 18px;
      color: var(--soft);
      line-height: 1.5;
    }

    .auth-dialog .auth-hint {
      margin-top: -8px;
      padding: 10px 12px;
      border: 1px solid rgba(8, 125, 255, .38);
      border-radius: 10px;
      background: rgba(8, 125, 255, .1);
      color: #e9f3ff;
      font-weight: 600;
    }

    .auth-close {
      position: absolute;
      top: 12px;
      right: 12px;
      width: 34px;
      height: 34px;
      border: 1px solid #174466;
      border-radius: 50%;
      background: #071725;
      color: white;
      font-size: 24px;
      line-height: 1;
    }

    .auth-form {
      display: grid;
      gap: 12px;
    }

    .auth-form label {
      display: grid;
      gap: 7px;
      color: var(--soft);
      font-weight: 600;
    }

    .auth-form input {
      width: 100%;
      min-height: 46px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #04111d;
      color: white;
      outline: none;
      padding: 0 14px;
    }

    .auth-form input:focus {
      border-color: var(--blue);
    }

    .auth-status {
      min-height: 22px;
      margin-top: 14px;
      color: var(--ok);
      line-height: 1.45;
    }

    .auth-status.error {
      color: var(--warn);
    }

    .setting-line {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      border-bottom: 1px solid var(--line);
      padding: 10px 0;
      color: var(--muted);
    }

    .setting-line b {
      color: white;
      text-align: right;
    }

    .info-btn {
      width: 34px;
      height: 34px;
      border: 1px solid var(--line);
      border-radius: 50%;
      background: rgba(7, 29, 48, .9);
      color: var(--cyan);
      font-weight: 900;
      flex: 0 0 auto;
    }

    .page-help {
      display: none;
      margin: -6px 0 14px;
      border: 1px solid rgba(8, 125, 255, .36);
      border-radius: 10px;
      background: rgba(8, 125, 255, .08);
      color: var(--soft);
      padding: 12px 14px;
      line-height: 1.5;
    }

    .page-help.show {
      display: block;
    }

    .empty-state {
      border: 1px dashed rgba(8, 125, 255, .42);
      border-radius: 12px;
      color: var(--soft);
      background: rgba(7, 29, 48, .35);
      padding: 18px;
      line-height: 1.5;
    }

    .card-note {
      margin: 6px 0 14px;
      color: var(--muted);
      line-height: 1.45;
      font-size: 14px;
    }

    .language-setting {
      align-items: center;
    }

    .language-toggle {
      display: inline-flex;
      gap: 6px;
      padding: 4px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: rgba(3, 12, 22, .72);
      flex: 0 0 auto;
    }

    .language-btn {
      min-width: 86px;
      min-height: 36px;
      border: 0;
      border-radius: 8px;
      background: transparent;
      color: var(--soft);
      font-weight: 800;
    }

    .language-btn.active {
      background: linear-gradient(180deg, #087dff, #0757bd);
      color: #fff;
      box-shadow: 0 0 18px rgba(8, 125, 255, .34);
    }

    .settings-select {
      min-height: 38px;
      min-width: 132px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #04111d;
      color: #fff;
      padding: 0 12px;
      font-weight: 800;
      outline: none;
    }

    .settings-select:disabled,
    .auth-required.locked {
      cursor: not-allowed;
      opacity: .52;
      filter: grayscale(.25);
    }

    .auth-required.locked.car-photo-upload {
      pointer-events: auto;
    }

    .danger-btn {
      border-color: rgba(255, 76, 76, .55);
      color: #ffdede;
      background: rgba(255, 76, 76, .08);
    }

    .danger-btn:hover {
      border-color: var(--danger);
      background: rgba(255, 76, 76, .16);
    }

    .toggle-switch {
      width: 58px;
      height: 32px;
      border: 1px solid #174466;
      border-radius: 999px;
      background: rgba(4, 13, 23, .95);
      padding: 3px;
      flex: 0 0 auto;
      transition: border-color .18s, background .18s, box-shadow .18s;
    }

    .toggle-switch span {
      display: block;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: #d7ddeb;
      transition: transform .18s, background .18s;
    }

    .toggle-switch.active {
      border-color: var(--blue);
      background: linear-gradient(180deg, #087dff, #064bc2);
      box-shadow: 0 0 18px rgba(8, 125, 255, .3);
    }

    .toggle-switch.active span {
      transform: translateX(26px);
      background: #fff;
    }

    .composer {
      padding: 14px;
      position: sticky;
      bottom: 12px;
      z-index: 12;
      backdrop-filter: blur(12px);
    }

    .composer-line {
      display: flex;
      gap: 12px;
    }

    .composer input {
      border-color: var(--blue);
      border-radius: 13px;
      padding: 17px 20px;
      font-size: 18px;
    }

    .send {
      width: 58px;
      height: 58px;
      border-radius: 50%;
      background: linear-gradient(180deg, #087dff, #064bc2);
      border: 1px solid var(--blue);
      color: white;
      font-size: 25px;
      display: grid;
      place-items: center;
      box-shadow: 0 0 24px rgba(8, 125, 255, .45);
      flex: 0 0 auto;
    }

    .tools {
      display: grid;
      grid-template-columns: 1fr 1fr 104px 1fr 1fr;
      gap: 18px;
      align-items: center;
      margin-top: 14px;
    }

    .bigmic {
      width: 78px;
      height: 78px;
      border-radius: 50%;
      margin: auto;
      border: 2px solid var(--blue);
      background: radial-gradient(circle, #0d5d91, #061f3f);
      display: grid;
      place-items: center;
      font-size: 42px;
      box-shadow: 0 0 30px rgba(8, 125, 255, .75);
    }

    .toast {
      position: fixed;
      right: 20px;
      bottom: 20px;
      max-width: min(420px, calc(100% - 40px));
      border: 1px solid var(--line);
      border-radius: 12px;
      background: rgba(3, 12, 22, .96);
      color: var(--soft);
      padding: 14px 16px;
      box-shadow: var(--shadow);
      transform: translateY(130%);
      transition: transform .22s;
      z-index: 20;
    }

    .toast.show { transform: translateY(0); }

    @media (max-width: 1050px) {
      .workspace,
      .grid-2,
      .chat-grid { grid-template-columns: 1fr; }
      .side { order: 2; }
      .nav {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
      }
      .nav button {
        justify-content: center;
        text-align: center;
      }
      .sound-card { display: none; }
      .facts { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 760px) {
      .app { width: min(100% - 20px, 1320px); padding-top: 14px; }
      .topbar { align-items: flex-start; }
      .system-pill { display: none; }
      .hero { grid-template-columns: 1fr; }
      .car-visual { min-height: 120px; }
      .nav { grid-template-columns: repeat(2, 1fr); }
      .nav button { font-size: 14px; padding: 0 10px; }
      .row,
      .service,
      .dtc-top,
      .car-info { grid-template-columns: 1fr; }
      .row .thumb { width: 100%; height: 150px; }
      .quick-grid,
      .manuals,
      .settings,
      .cols { grid-template-columns: 1fr; }
      .tools { grid-template-columns: 1fr 1fr; gap: 10px; }
      .bigmic { grid-column: 1 / -1; grid-row: 1; }
      .bubble.user { margin-left: 0; }
    }

    @media (max-width: 480px) {
      .brand-title { white-space: normal; }
      .facts,
      .nav { grid-template-columns: 1fr; }
      .head { flex-direction: column; }
      .search,
      .composer-line { flex-direction: column; }
      .send { width: 100%; border-radius: 12px; }
      .tools { grid-template-columns: 1fr; }
    }

    /* ===== Layout fix: ChatGPT-like workspace ===== */
    body { overflow: hidden; }
    .app {
      width: 100%;
      height: 100vh;
      margin: 0;
      padding: 14px 20px 118px;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }

    .topbar {
      position: sticky;
      top: 0;
      z-index: 60;
      margin-bottom: 12px;
      padding-left: 0;
      flex: 0 0 auto;
      background: linear-gradient(180deg, rgba(2,7,13,.98), rgba(2,7,13,.86));
    }

    .brand-title { font-size: clamp(28px, 2.4vw, 36px); }
    .hero { display: none !important; }

    .workspace {
      flex: 1 1 auto;
      min-height: 0;
      display: grid;
      grid-template-columns: 255px minmax(0, 1fr);
      gap: 18px;
      overflow: hidden;
    }

    .side {
      min-height: 0;
      height: 100%;
      overflow-y: auto;
      padding-right: 4px;
    }

    .side::-webkit-scrollbar,
    .assistant-right::-webkit-scrollbar,
    .messages::-webkit-scrollbar { width: 8px; }

    .side::-webkit-scrollbar-thumb,
    .assistant-right::-webkit-scrollbar-thumb,
    .messages::-webkit-scrollbar-thumb {
      background: #0b6fbb;
      border-radius: 10px;
    }

    .content {
      min-height: 0;
      height: 100%;
      overflow: hidden;
      padding-bottom: 0;
    }

    .content > .main-panel {
      min-height: 0;
      height: 100%;
      padding: 0;
      border: 0;
      background: transparent;
      box-shadow: none;
      overflow: hidden;
    }

    .view.active { height: 100%; min-height: 0; }

    #assistant .head {
      margin: 0 0 10px;
      padding: 0 4px;
    }

    #assistant .chat-grid {
      height: 100%;
      min-height: 0;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 18px;
      overflow: hidden;
    }

    .assistant-chat {
      min-height: 0;
      display: flex;
      flex-direction: column;
      overflow: hidden;
      padding: 4px 0 0;
    }

    .messages {
      flex: 1 1 auto;
      height: auto;
      min-height: 0;
      max-height: none;
      overflow-y: auto;
      padding: 0 12px 130px 4px;
    }

    .bubble {
      max-width: 76%;
      font-size: 16px;
    }

    .bubble.user {
      margin-left: auto;
    }

    .assistant-right {
      min-height: 0;
      height: 100%;
      overflow-y: auto;
      padding: 4px 6px 130px 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .assistant-right .card {
      background: linear-gradient(145deg, rgba(7, 29, 48, .92), rgba(4, 17, 29, .92));
    }

    .composer {
      position: fixed;
      left: calc(20px + 255px + 18px);
      right: 20px;
      bottom: 14px;
      z-index: 80;
      padding: 12px;
      background: rgba(3, 12, 22, .96);
      border: 1px solid var(--line-strong);
      border-radius: 14px;
      backdrop-filter: blur(14px);
      box-shadow: 0 -12px 40px rgba(0,0,0,.38);
    }

    .composer-line {
      align-items: center;
    }

    .composer input {
      height: 56px;
      padding: 0 18px;
      font-size: 16px;
    }

    .send {
      width: 58px;
      height: 58px;
    }

    .tools {
      grid-template-columns: 1fr 1fr 84px 1fr 1fr;
      gap: 12px;
      margin-top: 12px;
    }

    .tools .btn {
      min-height: 42px;
      padding: 10px 12px;
    }

    .bigmic {
      width: 64px;
      height: 64px;
      font-size: 32px;
    }

    #car .car-info {
      grid-template-columns: 1fr minmax(210px, 320px);
    }

    #car .car-photo-upload,
    .vehicle-photo-box {
      clip-path: none !important;
      display: grid;
      place-items: center;
      position: relative;
      min-height: 180px;
      border: 1px dashed #0b6fbb;
      border-radius: 12px;
      background:
        radial-gradient(circle at 50% 48%, rgba(8, 125, 255, .16), transparent 35%),
        linear-gradient(135deg, rgba(7,26,42,.92), rgba(3,11,19,.92)) !important;
      color: var(--muted);
      font-weight: 700;
      cursor: pointer;
      background-size: cover !important;
      background-position: center !important;
      text-align: center;
      padding: 16px;
    }

    #car .car-photo-upload input {
      position: absolute;
      inline-size: 1px;
      block-size: 1px;
      opacity: 0;
      pointer-events: none;
    }

    .car-photo-label {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 10px 14px;
      border: 1px solid rgba(8, 125, 255, .62);
      border-radius: 10px;
      background: rgba(5, 18, 31, .86);
      color: #fff;
      box-shadow: 0 0 18px rgba(8, 125, 255, .18);
    }

    .car-photo-upload.has-photo .car-photo-label {
      align-self: end;
    }

    @media (max-width: 1050px) {
      body { overflow: auto; }
      .app { height: auto; overflow: visible; padding: 14px 10px 170px; }
      .workspace { display: block; overflow: visible; }
      .side { height: auto; overflow: visible; }
      .content, .content > .main-panel { height: auto; overflow: visible; }
      #assistant .chat-grid { height: auto; grid-template-columns: 1fr; overflow: visible; }
      .messages { min-height: 420px; max-height: 60vh; padding-bottom: 16px; }
      .assistant-right { height: auto; overflow: visible; padding-bottom: 16px; }
      .composer { left: 10px; right: 10px; bottom: 10px; }
    }
    .bubble a,
    .topic-links a {
      color: var(--cyan);
      text-decoration: underline;
      word-break: break-all;
    }

    .topic-links {
      display: grid;
      gap: 10px;
      margin-top: 8px;
      color: var(--soft);
      line-height: 1.5;
    }

    .topic-link-item {
      display: grid;
      gap: 4px;
      border-top: 1px solid var(--line);
      padding-top: 10px;
    }

    .topic-link-item:first-child {
      border-top: 0;
      padding-top: 0;
    }

    .topic-link-title {
      color: var(--text);
      font-weight: 700;
    }

/* ===== Stable navigation and scroll fix ===== */
.content > .main-panel {
  overflow-y: auto;
  padding-bottom: 150px;
}

.view.active:not(#assistant) {
  min-height: 100%;
  overflow-y: auto;
  padding: 4px 4px 150px;
}

#assistant.view.active {
  overflow: hidden;
}

@media (min-width: 1051px) {
  .messages {
    max-height: calc(100vh - 290px);
  }
}

@media (max-width: 1050px) {
  body {
    overflow: auto !important;
  }

  .app,
  .workspace,
  .content,
  .content > .main-panel,
  .view.active {
    overflow: visible !important;
  }
}

/* ===== Page mode: normal scrolling outside PULS chat ===== */
body.page-mode {
  overflow-y: auto !important;
}

body.page-mode .app {
  height: auto !important;
  min-height: 100vh;
  overflow: visible !important;
  padding-bottom: 150px;
}

body.page-mode .workspace {
  height: auto !important;
  min-height: 0;
  overflow: visible !important;
  align-items: start;
}

body.page-mode .side {
  position: sticky;
  top: 90px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}

body.page-mode .content,
body.page-mode .content > .main-panel {
  height: auto !important;
  min-height: calc(100vh - 120px);
  overflow: visible !important;
}

body.page-mode .view.active {
  height: auto !important;
  min-height: calc(100vh - 160px);
  overflow: visible !important;
  padding: 4px 4px 170px;
}

body.page-mode #assistant.view {
  display: none !important;
}

body.assistant-mode {
  overflow: hidden;
}

body.assistant-mode .app {
  height: 100vh;
  overflow: hidden;
}

/* ===== Compact ChatGPT-like composer ===== */
.composer {
  max-width: min(1240px, calc(100vw - 40px));
}

.composer-line {
  position: relative;
  display: grid !important;
  grid-template-columns: 44px minmax(0, 1fr) 44px 48px;
  gap: 8px !important;
  align-items: center;
}

.composer input {
  height: 48px !important;
  min-height: 48px;
  border-radius: 999px !important;
  padding: 0 16px !important;
  font-size: 15px !important;
}

.composer-icon-btn,
.send {
  width: 44px !important;
  height: 44px !important;
  min-width: 44px;
  border-radius: 50% !important;
  border: 1px solid #12518a;
  background: rgba(6, 21, 35, .96);
  color: white;
  display: grid;
  place-items: center;
  padding: 0;
  font-size: 24px;
  line-height: 1;
  box-shadow: none;
  transition: transform .18s, border-color .18s, background .18s, box-shadow .18s;
}

.composer-icon-btn:hover,
.send:hover {
  transform: translateY(-1px);
  border-color: var(--blue);
  background: #0a2035;
  box-shadow: 0 0 18px rgba(8, 125, 255, .28);
}

.voice-btn {
  font-size: 21px;
}

.send {
  background: linear-gradient(180deg, #087dff, #064bc2) !important;
  border-color: var(--blue) !important;
  font-size: 22px !important;
}

.composer-menu-wrap {
  position: relative;
  z-index: 5;
}

.composer-menu {
  position: absolute;
  left: 0;
  bottom: calc(100% + 12px);
  width: 300px;
  display: none;
  padding: 8px;
  border: 1px solid #14598f;
  border-radius: 14px;
  background: rgba(3, 12, 22, .98);
  box-shadow: 0 18px 48px rgba(0, 0, 0, .46), 0 0 28px rgba(8, 125, 255, .16);
  backdrop-filter: blur(14px);
}

.composer-menu.show {
  display: grid;
  gap: 4px;
}

.composer-menu button {
  width: 100%;
  min-height: 42px;
  white-space: nowrap;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 10px;
  text-align: left;
  font-weight: 600;
}

.composer-menu button:hover {
  background: rgba(8, 125, 255, .16);
}

.composer-menu span {
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  display: grid;
  place-items: center;
  color: var(--cyan);
  font-size: 18px;
}

.tools,
.bigmic {
  display: none !important;
}

@media (min-width: 1051px) {
  .composer {
    left: calc(18px + 220px + 14px) !important;
    right: 18px !important;
    bottom: 14px !important;
    padding: 10px !important;
    border-radius: 24px !important;
  }
}

@media (max-width: 760px) {
  .composer-line {
    grid-template-columns: 42px minmax(0, 1fr) 42px 42px;
  }

  .composer-icon-btn,
  .send {
    width: 42px !important;
    height: 42px !important;
    min-width: 42px;
  }

  .composer-menu {
    width: min(300px, calc(100vw - 36px));
  }
}

/* ===== Keep assistant messages above the fixed composer ===== */
body.assistant-mode .messages {
  padding-bottom: 34px !important;
  scroll-padding-bottom: 34px;
}

body.assistant-mode .bubble:last-child {
  margin-bottom: 22px;
}

@media (min-width: 1051px) {
  body.assistant-mode #assistant .chat-grid {
    height: calc(100vh - 230px) !important;
  }

  body.assistant-mode .assistant-right {
    padding-bottom: 34px !important;
  }
}

/* ===== PULS page: no clipped text or side card ===== */
body.assistant-mode {
  overflow: hidden !important;
}

body.assistant-mode .app {
  height: 100vh !important;
  min-height: 100vh;
  overflow: hidden !important;
  padding-bottom: 0;
}

body.assistant-mode .workspace {
  height: auto !important;
  min-height: 0;
  overflow: visible !important;
  align-items: start;
}

body.assistant-mode .side {
  position: sticky;
  top: 90px;
  height: auto !important;
  max-height: calc(100vh - 110px) !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  scrollbar-color: #0b7ee8 transparent;
}

body.assistant-mode .content,
body.assistant-mode #assistant.view.active,
body.assistant-mode #assistant .chat-grid,
body.assistant-mode .assistant-chat {
  height: auto !important;
  min-height: 0 !important;
  overflow: visible !important;
}

body.assistant-mode .content > .main-panel {
  height: calc(100vh - 132px) !important;
  min-height: 0 !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  padding: 4px 4px 170px;
  scroll-padding-bottom: 130px;
}

body.assistant-mode #assistant.view.active {
  padding: 0;
}

body.assistant-mode #assistant .chat-grid {
  align-items: start;
}

body.assistant-mode .messages {
  height: auto !important;
  max-height: none !important;
  min-height: 0 !important;
  overflow: visible !important;
  padding: 0 12px 34px 4px !important;
}

body.assistant-mode .assistant-right {
  height: auto !important;
  max-height: none !important;
  overflow: visible !important;
  padding-bottom: 34px !important;
}

/* ===== Center composer in the main workspace ===== */
@media (min-width: 1051px) {
  .composer {
    width: min(1240px, calc(100vw - 270px)) !important;
    left: calc(252px + ((100vw - 270px - min(1240px, calc(100vw - 270px))) / 2)) !important;
    right: auto !important;
    transform: none;
  }
}

@media (min-width: 1051px) {
body.assistant-mode .composer {
    width: auto !important;
    max-width: none !important;
    left: clamp(252px, 19vw, 370px) !important;
    right: 24px !important;
    transform: none;
  }
}

/* ===== Header stays fixed to the page without a black strip ===== */
.topbar {
  position: sticky !important;
  top: 0 !important;
  z-index: 90;
  background:
    radial-gradient(circle at 28% -8%, rgba(0, 128, 255, .18), transparent 34%),
    radial-gradient(circle at 88% 14%, rgba(0, 217, 255, .10), transparent 28%),
    linear-gradient(135deg, #02070d 0%, #010409 48%, #000 100%) !important;
  margin-bottom: 18px !important;
  padding-bottom: 10px;
}

/* ===== Transparent menu scrollbar track ===== */
.side,
.content > .main-panel {
  scrollbar-color: #0b7ee8 transparent;
}

.side::-webkit-scrollbar-track,
.content > .main-panel::-webkit-scrollbar-track {
  background: transparent !important;
}

.side::-webkit-scrollbar-thumb,
.content > .main-panel::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #0b8dff, #0757bd) !important;
  border: 2px solid transparent;
  background-clip: padding-box;
  border-radius: 999px;
}

@media (max-width: 1050px) {
  .composer {
    width: auto !important;
    left: 10px !important;
    right: 10px !important;
    transform: none;
  }
}