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

  :root {
    --bg:       #080b10;
    --surface:  #0e1219;
    --card:     #131820;
    --border:   #1e2535;
    --accent:   #00e5ff;
    --accent2:  #ff4d6d;
    --accent3:  #b8ff57;
    --text:     #e2e8f0;
    --muted:    #4a5568;
    --muted2:   #718096;
    --success:  #b8ff57;
    --error:    #ff4d6d;
    --mono:     'JetBrains Mono', monospace;
    --sans:     'Syne', sans-serif;
  }

  body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding: 0;
    overflow-x: hidden;
  }

  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(rgba(0,229,255,.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,229,255,.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
  }

  header {
    position: relative;
    z-index: 1;
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(180deg, rgba(0,229,255,.04) 0%, transparent 100%);
  }

  .logo {
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--accent);
    font-family: var(--mono);
  }
  .logo span { color: var(--muted2); font-weight: 400; }

  .version-tag {
    font-family: var(--mono);
    font-size: .7rem;
    padding: .2rem .6rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--muted2);
    letter-spacing: .06em;
  }

  main {
    position: relative;
    z-index: 1;
    max-width: 960px;
    margin: 0 auto;
    padding: 2.5rem 2rem 4rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .section-label {
    font-family: var(--mono);
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: .75rem;
    display: flex;
    align-items: center;
    gap: .5rem;
  }
  .section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
  }

  .card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
  }
  .card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
  }
  .card.get-card::before  { background: linear-gradient(90deg, var(--accent), transparent); }
  .card.patch-card::before { background: linear-gradient(90deg, var(--accent2), transparent); }

  .method-badge {
    display: inline-block;
    font-family: var(--mono);
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .1em;
    padding: .2rem .55rem;
    border-radius: 4px;
    margin-bottom: 1rem;
  }
  .badge-get   { background: rgba(0,229,255,.12);  color: var(--accent);  border: 1px solid rgba(0,229,255,.25); }
  .badge-patch { background: rgba(255,77,109,.12); color: var(--accent2); border: 1px solid rgba(255,77,109,.25); }

  .field-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: .75rem;
    margin-bottom: .75rem;
  }

  .field {
    display: flex;
    flex-direction: column;
    gap: .35rem;
  }

  label {
    font-family: var(--mono);
    font-size: .65rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--muted2);
  }

  input {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: .5rem .75rem;
    color: var(--text);
    font-family: var(--mono);
    font-size: .85rem;
    transition: border-color .15s, box-shadow .15s;
    width: 100%;
  }
  input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0,229,255,.08);
  }
  input.patch-input:focus {
    border-color: var(--accent2);
    box-shadow: 0 0 0 3px rgba(255,77,109,.08);
  }
  input::placeholder { color: var(--muted); }

  .btn {
    font-family: var(--mono);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    border: none;
    border-radius: 6px;
    padding: .6rem 1.4rem;
    cursor: pointer;
    transition: opacity .15s, transform .1s;
    display: inline-flex;
    align-items: center;
    gap: .5rem;
  }
  .btn:hover  { opacity: .85; }
  .btn:active { transform: scale(.97); }
  .btn-get    { background: var(--accent);  color: var(--bg); }
  .btn-patch  { background: var(--accent2); color: #fff; }

  .response-block {
    margin-top: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    display: none;
  }
  .response-block.visible { display: block; }

  .response-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .5rem .9rem;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,.02);
  }
  .response-header span {
    font-family: var(--mono);
    font-size: .68rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--muted2);
  }

  .status-pill {
    font-family: var(--mono);
    font-size: .7rem;
    font-weight: 700;
    padding: .15rem .5rem;
    border-radius: 20px;
  }
  .status-ok    { background: rgba(184,255,87,.12);  color: var(--success); }
  .status-err   { background: rgba(255,77,109,.12);  color: var(--error); }
  .status-wait  { background: rgba(255,255,255,.06); color: var(--muted2); }

  pre {
    padding: 1rem;
    font-family: var(--mono);
    font-size: .78rem;
    line-height: 1.7;
    color: var(--text);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 360px;
    overflow-y: auto;
  }
  pre::-webkit-scrollbar { width: 4px; }
  pre::-webkit-scrollbar-track { background: transparent; }
  pre::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

  .json-key    { color: var(--accent); }
  .json-str    { color: var(--accent3); }
  .json-num    { color: #f9826c; }
  .json-bool   { color: var(--accent2); }
  .json-null   { color: var(--muted2); }

  .spinner {
    width: 14px; height: 14px;
    border: 2px solid rgba(255,255,255,.1);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin .6s linear infinite;
    display: none;
  }
  .spinner.active { display: inline-block; }
  @keyframes spin { to { transform: rotate(360deg); } }

  .hint {
    font-family: var(--mono);
    font-size: .7rem;
    color: var(--muted);
    margin-top: .4rem;
  }

  .curl-block {
    margin-top: .75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: .6rem 1rem;
    font-family: var(--mono);
    font-size: .72rem;
    color: var(--muted2);
    white-space: pre-wrap;
    word-break: break-all;
    line-height: 1.6;
  }
  .curl-block .curl-method { color: var(--accent2); font-weight: 700; }
  .curl-block .curl-url    { color: var(--accent); }

  footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 1.5rem;
    font-family: var(--mono);
    font-size: .68rem;
    color: var(--muted);
    border-top: 1px solid var(--border);
    letter-spacing: .06em;
  }