:root {
  --bg: #f6f7fb;
  --fg: #1f2330;
  --muted: #6b7280;
  --line: #e5e7eb;
  --card: #ffffff;
  --primary: #0078d4;
  --primary-fg: #ffffff;
  --danger: #c62828;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 4px 12px rgba(0,0,0,.04);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; color: var(--fg); background: var(--bg); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--danger); }

.topbar { display: flex; align-items: center; gap: 1.25rem; padding: .75rem 1.25rem; background: var(--card); border-bottom: 1px solid var(--line); }
.topbar .brand a { color: var(--fg); font-weight: 700; }
.topbar .nav { display: flex; gap: 1rem; flex: 1; }
.topbar .nav a { color: var(--muted); padding: .25rem .25rem; border-bottom: 2px solid transparent; }
.topbar .nav a.active, .topbar .nav a:hover { color: var(--fg); border-bottom-color: var(--primary); text-decoration: none; }
.topbar .user { display: flex; align-items: center; gap: .75rem; font-size: 13px; color: var(--muted); }
.topbar .user em { font-style: normal; opacity: .8; }

.container { max-width: 1100px; margin: 1.5rem auto; padding: 0 1.25rem; }
.foot { text-align: center; color: var(--muted); padding: 2rem 0; }

.card { background: var(--card); padding: 1.5rem; border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); }
.centered { max-width: 420px; margin: 4rem auto; text-align: center; }

.btn { display: inline-block; padding: .5rem .9rem; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--fg); cursor: pointer; font-size: 14px; }
.btn:hover { border-color: #c8ccd4; text-decoration: none; }
.btn.primary { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); }
.btn.big { padding: .75rem 1.25rem; font-size: 16px; }
.btn.small { padding: .25rem .5rem; font-size: 12px; }
.btn.danger { color: var(--danger); border-color: #f0c8c8; }
.btn.link { background: transparent; border: 0; color: var(--primary); padding: 0; cursor: pointer; }
.inline { display: inline; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.tile { display: block; padding: 1rem; border-radius: 10px; background: var(--card); border: 1px solid var(--line); border-top: 4px solid var(--accent, var(--primary)); color: var(--fg); box-shadow: var(--shadow); transition: transform .08s ease, box-shadow .08s ease; }
.tile:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(0,0,0,.07); }
.tile-name { font-weight: 600; }
.tile-desc { color: var(--muted); margin-top: .25rem; font-size: 13px; }
.tile-mode { color: var(--muted); margin-top: .5rem; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }

.viewer-bar { display: flex; align-items: center; gap: 1rem; padding: .5rem 0; }
.viewer-bar .viewer-title { flex: 1; font-weight: 600; }
.iframe-wrap { position: relative; height: calc(100vh - 220px); min-height: 480px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; }
.iframe-wrap iframe { width: 100%; height: 100%; border: 0; }

.page-head { display: flex; align-items: center; justify-content: space-between; }
.data { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.data th, .data td { padding: .55rem .75rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data tr:last-child td { border-bottom: 0; }
.data th { background: #fafbfd; color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.row-actions { white-space: nowrap; }
.url { word-break: break-all; }

.form { display: grid; gap: .75rem; max-width: 560px; }
.form label { display: grid; gap: .25rem; font-weight: 500; }
.form input, .form select, .form textarea { padding: .5rem; border: 1px solid var(--line); border-radius: 6px; font: inherit; background: #fff; }
.form fieldset { border: 1px solid var(--line); border-radius: 6px; padding: .75rem; }
.form fieldset legend { padding: 0 .25rem; color: var(--muted); font-size: 12px; }
.form .check { display: inline-flex; gap: .35rem; margin-right: 1rem; font-weight: 400; }
.form-actions { display: flex; gap: .5rem; margin-top: .25rem; }

.badge { display: inline-block; padding: .1rem .5rem; border-radius: 999px; background: #eef2f7; color: #334; font-size: 12px; }
.badge.role-SUPERADMIN { background: #fde8e8; color: #b00020; }
.badge.role-PENDING { background: #fff4d6; color: #8a6d00; }

.filters { display: flex; gap: .75rem; align-items: end; margin: .75rem 0; flex-wrap: wrap; }
.filters label { display: grid; gap: .25rem; font-size: 12px; color: var(--muted); }
.filters input, .filters select { padding: .35rem .5rem; border: 1px solid var(--line); border-radius: 6px; }

.pager { display: flex; align-items: center; gap: 1rem; margin-top: 1rem; color: var(--muted); }