:root {
  --bg: #f5f6f8;
  --bg-card: #ffffff;
  --bg-inset: #eef0f3;
  --text: #1c2330;
  --text-muted: #6b7484;
  --border: #dde1e7;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --danger: #dc2626;
  --shadow: 0 1px 3px rgba(16, 24, 40, .08);
  color-scheme: light;
}

html[data-theme="dark"] {
  --bg: #12151b;
  --bg-card: #1a1e26;
  --bg-inset: #232833;
  --text: #e6e9ef;
  --text-muted: #98a1b3;
  --border: #2d3441;
  --accent: #3b82f6;
  --accent-text: #ffffff;
  --danger: #f87171;
  --shadow: 0 1px 3px rgba(0, 0, 0, .4);
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* top bar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 18px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; font-size: 17px; color: var(--text); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand-dot { color: var(--accent); }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.role-chip {
  font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  background: var(--accent); color: var(--accent-text);
  padding: 2px 8px; border-radius: 999px;
}
.icon-btn {
  background: none; border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 4px 9px; cursor: pointer; font-size: 15px;
}
.icon-btn:hover { background: var(--bg-inset); }
html[data-theme="dark"] .theme-icon-dark { display: none; }
html:not([data-theme="dark"]) .theme-icon-light { display: none; }

/* layout */
.wrap { display: flex; gap: 20px; max-width: 1200px; margin: 0 auto; padding: 20px 16px; }
.wrap:not(.with-sidebar) { max-width: 860px; }
.main { flex: 1; min-width: 0; }

/* sidebar */
.sidebar {
  width: 290px; flex-shrink: 0;
  display: flex; flex-direction: column; gap: 10px;
}
.search input {
  width: 100%; padding: 8px 12px;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg-card); color: var(--text); font-size: 14px;
}
.paste-list { display: flex; flex-direction: column; gap: 8px; }
.paste-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 9px 11px; box-shadow: var(--shadow);
}
.paste-link { display: block; color: var(--text); }
.paste-link:hover { text-decoration: none; }
.paste-link:hover .paste-title { color: var(--accent); }
.paste-title {
  display: block; font-weight: 600; font-size: 14px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.paste-meta { display: block; font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.paste-actions { display: flex; gap: 6px; margin-top: 7px; }
.badge {
  display: inline-block; font-size: 11px; padding: 0 5px;
  border-radius: 5px; background: var(--bg-inset); color: var(--text-muted);
}
.badge-draft { background: #b4540a1e; color: #b4540a; }
html[data-theme="dark"] .badge-draft { color: #f59e0b; }
.empty { color: var(--text-muted); font-size: 13px; text-align: center; padding: 14px 0; }

/* cards & forms */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 22px; box-shadow: var(--shadow);
}
.center-card { max-width: 480px; margin: 8vh auto 0; text-align: center; }
.page-title { margin: 0 0 14px; font-size: 20px; letter-spacing: -.01em; }
.section-title { font-size: 15px; margin: 20px 0 8px; }
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; flex: 1; border: 0; padding: 0; }
.field > span { font-size: 13px; font-weight: 600; }
.field small { font-weight: 400; color: var(--text-muted); }
.field-row { display: flex; gap: 14px; }
.field input[type="text"], .field input[type="password"], .field textarea {
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--text); font-size: 14px; width: 100%;
}
.field textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; resize: vertical; }
.field input:focus, .field textarea:focus, .search input:focus {
  outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent);
}
.field input[type="file"] { font-size: 13px; padding: 6px 0; }
.check-field { display: flex; align-items: center; gap: 8px; font-size: 14px; margin-bottom: 14px; }
.form-actions { display: flex; gap: 10px; margin-top: 6px; }

.btn {
  display: inline-block; padding: 9px 18px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg-card); color: var(--text);
  font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn:hover { background: var(--bg-inset); text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-primary:hover { filter: brightness(1.1); background: var(--accent); }
.btn-small { padding: 5px 12px; font-size: 13px; }
.btn-danger { color: var(--danger); }
.mini-btn {
  font-size: 12px; padding: 2px 8px; border-radius: 6px;
  border: 1px solid var(--border); background: none; color: var(--text-muted);
  cursor: pointer;
}
.mini-btn:hover { background: var(--bg-inset); color: var(--text); text-decoration: none; }
.mini-danger:hover, .btn-danger:hover { color: var(--danger); border-color: var(--danger); }
.confirm-armed { color: #fff !important; background: var(--danger) !important; border-color: var(--danger) !important; }

.banner { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.banner-error { background: #dc26261a; color: var(--danger); border: 1px solid #dc262640; }

/* paste view */
.paste-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.head-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.meta-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; color: var(--text-muted); font-size: 13px; margin-bottom: 14px; }
.message {
  background: var(--bg-inset); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 16px; font: 13.5px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap; word-wrap: break-word; overflow-x: auto; margin: 0;
}
.attachments { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.attachment {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-inset); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 12px; font-size: 14px;
}
.att-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.att-size { color: var(--text-muted); font-size: 12px; flex-shrink: 0; }
.att-buttons { margin-left: auto; display: flex; gap: 6px; flex-shrink: 0; }
.att-remove { display: flex; align-items: center; gap: 8px; cursor: pointer; width: 100%; }

/* unlock */
.unlock-form { display: flex; gap: 10px; justify-content: center; margin-top: 16px; }
.unlock-form input {
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--text); font-size: 14px;
}
.muted { color: var(--text-muted); }
.err-code { font-size: 42px; margin: 0 0 6px; color: var(--text-muted); }
.err-msg { margin: 0 0 18px; }

/* text viewer modal */
.viewer {
  width: min(880px, 92vw); height: min(640px, 84vh);
  border: 1px solid var(--border); border-radius: 12px; padding: 0;
  background: var(--bg-card); color: var(--text);
  display: none; flex-direction: column;
}
.viewer[open] { display: flex; }
.viewer::backdrop { background: rgba(0, 0, 0, .55); }
.viewer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 14px;
}
.viewer iframe { flex: 1; width: 100%; border: 0; background: var(--bg-card); }

/* toast */
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--bg);
  padding: 9px 18px; border-radius: 8px; font-size: 14px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .25);
  opacity: 0; transition: opacity .2s; pointer-events: none; z-index: 100;
  max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; }
.toast.err { background: var(--danger); color: #fff; }

/* responsive */
@media (max-width: 760px) {
  .wrap { flex-direction: column; }
  .sidebar { width: 100%; order: 2; }
  .field-row { flex-direction: column; gap: 0; }
  .paste-head { flex-direction: column; }
  .att-buttons { margin-left: 0; }
  .attachment { flex-wrap: wrap; }
}