:root {
  --accent: #1f5fae;
  --pin: #d32f2f;
  --danger: #c62828;
  --bg: #f3f4f6;
  --border: #d9dce1;
  --text: #1f2328;
  --muted: #6b7280;
  --topbar-h: 52px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); }
a { color: var(--accent); }
h1 { font-size: 1.4rem; margin: 0 0 1rem; }
h2 { font-size: 1.05rem; margin: 0 0 .6rem; }
.muted { color: var(--muted); }
.error, .errorlist { color: var(--danger); }
[hidden] { display: none !important; }

/* --- controls ----------------------------------------------------------- */

button, .button {
  font: inherit;
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .4rem .8rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
button:hover, .button:hover { background: #f0f2f5; }
.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.primary:hover { background: #184d8f; }
.danger { color: var(--danger); }
.small { padding: .2rem .55rem; font-size: .85rem; }
button.link {
  border: 0; background: none; padding: 0; color: var(--accent); text-decoration: underline;
}
button.link.danger { color: var(--danger); }

input[type=text], input[type=password], input[type=number], input[type=file], textarea {
  font: inherit;
  width: 100%;
  padding: .45rem .6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
}
textarea { resize: vertical; }
label { display: block; margin-bottom: .8rem; font-size: .9rem; }
label > input, label > textarea { margin-top: .25rem; }

/* --- layout ------------------------------------------------------------- */

.topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1rem;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 1.1rem; text-decoration: none; color: var(--text); }
.brand span { color: var(--accent); }
.user-menu { margin-left: auto; display: flex; align-items: center; gap: .9rem; font-size: .9rem; }
.user-menu form { margin: 0; }

.container { max-width: 1000px; margin: 1.5rem auto; padding: 0 1rem; }
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}
.card.narrow { max-width: 380px; margin: 4rem auto; }

.messages { list-style: none; margin: 1rem auto 0; padding: 0 1rem; max-width: 1000px; }
.messages li { padding: .6rem .9rem; border-radius: 6px; background: #e7f0fb; margin-bottom: .5rem; }
.messages li.error { background: #fdecec; }

.upload-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 1rem; align-items: end; }
.upload-form label { margin: 0; }
@media (max-width: 700px) { .upload-form { grid-template-columns: 1fr; } }

table.documents { width: 100%; border-collapse: collapse; }
table.documents th, table.documents td {
  text-align: left; padding: .55rem .4rem; border-bottom: 1px solid var(--border);
}
table.documents th { font-size: .8rem; text-transform: uppercase; color: var(--muted); }
td.actions { display: flex; gap: 1rem; justify-content: flex-end; }
td.actions form { margin: 0; }

/* --- viewer ------------------------------------------------------------- */

.viewer-page { height: 100vh; overflow: hidden; }
.viewer-page .messages { position: fixed; top: calc(var(--topbar-h) + .5rem); right: 1rem; z-index: 20; }
.viewer {
  display: grid;
  grid-template-columns: 1fr 340px;
  height: calc(100vh - var(--topbar-h));
}

.toolbar { display: flex; align-items: center; gap: .6rem; flex: 1; min-width: 0; }
.toolbar .group { display: inline-flex; align-items: center; gap: .25rem; font-size: .9rem; }
.toolbar .rename { flex: 1; min-width: 120px; max-width: 360px; margin: 0; }
.toolbar .rename input { border-color: transparent; font-weight: 600; }
.toolbar .rename input:hover, .toolbar .rename input:focus { border-color: var(--border); }
.page-nav input { width: 4.2rem; padding: .3rem .4rem; }
#zoom-label { min-width: 3.2rem; justify-content: center; display: inline-block; }

.pages {
  overflow: auto;
  padding: 24px;
  background: #525659;
  outline: none;
}
.pages #loading { color: #ddd; }

.page {
  position: relative;
  margin: 0 auto 24px;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .35);
  cursor: crosshair;
}
.page canvas { display: block; width: 100%; height: 100%; }
.pin-layer { position: absolute; inset: 0; }
.page-label {
  position: absolute; bottom: -20px; right: 0; font-size: .75rem; color: #ccc;
}

.pin {
  position: absolute;
  width: 28px;
  height: 28px;
  padding: 0;
  justify-content: center;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 2px solid #fff;
  background: var(--pin);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 1px 4px rgba(0, 0, 0, .5);
  cursor: grab;
  touch-action: none;
  user-select: none;
}
.pin:hover { background: #b71c1c; }
.pin.selected { outline: 3px solid #ffca28; outline-offset: 1px; z-index: 2; }
.pin.dragging { cursor: grabbing; opacity: .85; z-index: 3; }

.sidebar {
  overflow-y: auto;
  background: #fff;
  border-left: 1px solid var(--border);
  padding: 1rem;
}
.hint { font-size: .85rem; color: var(--muted); margin-top: 0; }

.editor {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .9rem;
  margin-bottom: 1.2rem;
  background: #fafbfc;
}
.editor header { display: flex; align-items: baseline; justify-content: space-between; }
.editor h2 span { color: var(--pin); }
.status { font-size: .8rem; min-height: 1em; margin: -.4rem 0 .6rem; white-space: pre-line; }
.photos-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .5rem; }
.photos-head label { margin: 0; }
.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .4rem; }
.photo-grid figure { position: relative; margin: 0; aspect-ratio: 1; }
.photo-grid img { width: 100%; height: 100%; object-fit: cover; border-radius: 4px; display: block; }
.photo-grid .remove {
  position: absolute; top: 2px; right: 2px; width: 22px; height: 22px; padding: 0;
  justify-content: center; border-radius: 50%; background: rgba(0, 0, 0, .6); color: #fff; border: 0;
}
.editor-actions { display: flex; justify-content: space-between; margin-top: 1rem; }

.marker-list { list-style: none; margin: 0; padding: 0; }
.marker-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: .6rem;
  padding: .5rem;
  border-radius: 6px;
  cursor: pointer;
}
.marker-list li:hover { background: #f3f4f6; }
.marker-list li.selected { background: #fff8e1; }
.marker-list .badge {
  grid-row: span 2;
  width: 26px; height: 26px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--pin); color: #fff; font-size: .8rem; font-weight: 700;
}
.marker-list .excerpt { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .9rem; }
.marker-list .meta { font-size: .78rem; }

@media (max-width: 900px) {
  .viewer-page { height: auto; overflow: auto; }
  .viewer { grid-template-columns: 1fr; height: auto; }
  .pages { height: 70vh; }
  .sidebar { border-left: 0; border-top: 1px solid var(--border); }
  .toolbar .rename, .user-menu .muted { display: none; }
}