@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Page */
  --color-bg: #f7f9fc;
  --color-surface: #ffffff;
  --color-border: #e4e8ef;
  --color-border-subtle: #f1f5f9;
  --color-text: #111827;
  --color-muted: #4b5563;
  --color-muted-light: #9ca3af;

  /* Klay petrol teal */
  --color-accent: #17abc8;
  --color-accent-tint: #e0f7fa;
  --color-accent-dark: #0f8fa8;

  /* Method badges — pastel pills */
  --m-get-bg:    #d1fae5; --m-get:    #065f46;
  --m-post-bg:   #dbeafe; --m-post:   #1e40af;
  --m-put-bg:    #fef3c7; --m-put:    #92400e;
  --m-patch-bg:  #ede9fe; --m-patch:  #5b21b6;
  --m-delete-bg: #fee2e2; --m-delete: #991b1b;

  --text-base: 0.9375rem;
  --text-sm:   0.84375rem;
  --text-xs:   0.75rem;
  --sidebar-w: 300px;
  --topbar-h:  56px;
  --radius: 6px;
  --space-section: 3rem;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

pre, .example {
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
}

/* ── Topbar ── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1.75rem;
  height: var(--topbar-h);
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
}

.topbar__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  flex-shrink: 0;
}

.topbar__logo-mark {
  width: 20px;
  height: 20px;
}

.topbar__brand {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.topbar__label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-left: 0.1rem;
}

.topbar__version {
  margin-left: auto;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  letter-spacing: 0.01em;
}

/* ── Layout ── */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  align-items: start;
  min-height: calc(100vh - var(--topbar-h));
}

/* ── Sidebar ── */
.sidebar {
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1.25rem 1rem 2rem 1rem;
  border-right: 1px solid var(--color-border);
  background: #ffffff;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.nav__group { margin-bottom: 0.125rem; }

.nav__tag {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-muted);
  padding: 0.875rem 0.5rem 0.3rem 0.5rem;
  letter-spacing: 0.005em;
  display: block;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.5rem 0.4rem 0.5rem;
  text-decoration: none;
  color: var(--color-text);
  font-size: var(--text-sm);
  line-height: 1.4;
  transition: background 120ms var(--ease);
}

.nav__link:hover { background: #f1f5f9; }

.nav__link.is-active {
  background: var(--color-accent-tint);
  color: var(--color-accent-dark);
  font-weight: 500;
}

.nav__method {
  font-size: 0.575rem;
  font-weight: 700;
  padding: 0.14rem 0.42rem;
  border-radius: 3px;
  flex-shrink: 0;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.2;
}

.nav__method--get    { background: var(--m-get-bg);    color: var(--m-get); }
.nav__method--post   { background: var(--m-post-bg);   color: var(--m-post); }
.nav__method--put    { background: var(--m-put-bg);    color: var(--m-put); }
.nav__method--patch  { background: var(--m-patch-bg);  color: var(--m-patch); }
.nav__method--delete { background: var(--m-delete-bg); color: var(--m-delete); }

.nav__label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.nav__path {
  font-size: var(--text-sm);
  overflow-wrap: anywhere;
  word-break: break-all;
  min-width: 0;
}

/* ── Main panel ── */
.main {
  padding: 2.75rem clamp(2.5rem, 2rem + 3vw, 5rem) 5rem;
  background: #ffffff;
  min-height: calc(100vh - var(--topbar-h));
  width: 100%;
}

/* ── Operation section ── */
.op {
  padding-bottom: var(--space-section);
  margin-bottom: var(--space-section);
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--topbar-h) + 1rem);
}

.op:last-child { border-bottom: none; }

.op__head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 0.625rem;
}

.op__method {
  font-weight: 700;
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  padding: 0.22rem 0.55rem;
  border-radius: 4px;
  flex-shrink: 0;
  text-transform: uppercase;
  line-height: 1.2;
}

/* Method badge colors — pastel */
.op__method--get    { background: var(--m-get-bg);    color: var(--m-get); }
.op__method--post   { background: var(--m-post-bg);   color: var(--m-post); }
.op__method--put    { background: var(--m-put-bg);    color: var(--m-put); }
.op__method--patch  { background: var(--m-patch-bg);  color: var(--m-patch); }
.op__method--delete { background: var(--m-delete-bg); color: var(--m-delete); }

.op__path {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-muted);
}

.op__auth {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-muted-light);
  margin-left: auto;
}

.op__summary {
  font-size: clamp(1.25rem, 1.1rem + 0.65vw, 1.5625rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
  color: var(--color-text);
  line-height: 1.25;
}

.op__desc {
  color: var(--color-muted);
  font-size: var(--text-sm);
  margin: 0 0 0.75rem;
  line-height: 1.65;
}

.op__subhead {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-muted-light);
  margin: 2rem 0 0.75rem;
}

/* ── Fields table ── */
.fields {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.fields th {
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-muted-light);
  border-bottom: 1px solid var(--color-border);
  padding: 0.5rem 0.875rem;
}

.fields td {
  border-bottom: 1px solid var(--color-border-subtle);
  padding: 0.625rem 0.875rem;
  vertical-align: top;
}

.fields tr:last-child td { border-bottom: none; }

.field__name {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text);
}

.field__req {
  margin-left: 0.4rem;
  font-size: 0.575rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.field__type {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.field__desc {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

/* ── Response rows ── */
.resp {
  display: flex;
  align-items: baseline;
  gap: 0.875rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.resp:last-child { border-bottom: none; }

.resp__code {
  font-weight: 700;
  font-size: 0.78rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.resp__desc {
  font-size: 0.9rem;
  color: var(--color-text);
}

.resp .fields { flex-basis: 100%; margin-top: 0.5rem; }

.resp--ok .resp__code  { background: var(--color-accent-tint); color: var(--color-accent); }
.resp--err .resp__code { background: #fde8e8; color: #b91c1c; }

/* ── Example code block ── */
.example {
  background: #f8fafc;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.125rem;
  overflow-x: auto;
  font-size: 0.775rem;
  margin-top: 0.875rem;
  line-height: 1.6;
  color: var(--color-text);
}

/* ── Flag badges ── */
.flag {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  margin: 0.75rem 0;
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius);
  background: #f8fafc;
  border: 1px solid var(--color-border);
  font-size: var(--text-sm);
}

.flag__label {
  font-weight: 600;
  font-size: var(--text-xs);
  white-space: nowrap;
  padding: 0.1rem 0.5rem;
  border-radius: 20px;
  flex-shrink: 0;
}

.flag__note { color: var(--color-muted); }

.flag--suspected-bug { background: var(--color-accent-tint); border-color: #a5e0ec; }
.flag--suspected-bug .flag__label { background: var(--color-accent); color: #fff; }

.flag--not-implemented {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 5px;
  background: #fef08a;
  border: 1px solid #fcd34d;
  font-size: 1rem;
  line-height: 1;
  flex-direction: row;
  gap: 0;
  cursor: default;
}
.flag--not-implemented .flag__label,
.flag--not-implemented .flag__note { display: none; }

.flag--undocumented { background: #fafafa; border-color: #e5e7eb; }
.flag--undocumented .flag__label { background: #9ca3af; color: #fff; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .main { padding: 1.5rem 1.25rem 3rem; max-width: none; }
}

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }