/* Atrium shell: layout and components. Tokens live in theme.css. */
.muted { color: var(--muted); }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.hidden, [hidden] { display: none !important; }

/* Buttons */
button.primary, button.secondary, button.danger, a.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 36px; padding: 7px 14px;
  border-radius: var(--radius-small); border: 1px solid var(--line-strong); background: var(--panel); color: var(--text);
  font-weight: 600; text-decoration: none; transition: background var(--fast) var(--ease), border-color var(--fast) var(--ease);
}
button.primary, a.button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button.primary:hover, a.button.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
button.secondary:hover, a.button:hover { background: var(--soft); }
button.danger { color: var(--danger); border-color: var(--line-strong); }
button.danger:hover { background: var(--danger-soft); }
button:disabled { opacity: .55; cursor: not-allowed; }
.icon-button { width: 28px; height: 28px; border-radius: 7px; border: 1px solid var(--line-strong); background: var(--panel);
  color: var(--text); font-size: 17px; line-height: 1; display: inline-grid; place-items: center; }
.icon-button:hover { background: var(--soft); }
.link-button { background: none; border: none; padding: 6px 0; color: var(--muted); text-align: left; }
.link-button:hover { color: var(--text); text-decoration: underline; }

/* Top bar and layout */
.topbar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 20px; background: var(--panel); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 17px; }
.topbar-actions { display: flex; align-items: center; gap: 14px; min-width: 0; }
#identity { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 40vw; }
.layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); min-height: calc(100vh - 57px); }
.sidebar { display: flex; flex-direction: column; gap: 4px; padding: 18px 14px; border-right: 1px solid var(--line); background: var(--raised); }
.sidebar-heading { display: flex; align-items: center; justify-content: space-between; margin: 16px 8px 6px;
  font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.folder-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; overflow: auto; }
.nav-link { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 7px 10px; border-radius: 7px;
  color: var(--text); text-decoration: none; overflow: hidden; }
.nav-link span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-link:hover { background: var(--soft); }
.nav-link[aria-current="page"] { background: var(--soft); font-weight: 600; box-shadow: inset 3px 0 0 var(--accent); }
.nav-count { color: var(--muted); font-size: 12px; }
.sidebar-foot { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 2px; }
.main { padding: 28px 32px 48px; min-width: 0; outline: none; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.page-head h1 { margin-bottom: 4px; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Sign-in */
.signed-out { display: grid; place-items: center; min-height: calc(100vh - 57px); padding: 24px 16px; }
.sign-in { max-width: 460px; width: 100%; }
.sign-in h1 { font-size: 30px; }
.sign-in form { display: grid; gap: 10px; margin-top: 12px; }

/* Tabs */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 20px; overflow-x: auto; }
.tabs button { background: none; border: none; padding: 9px 12px; color: var(--muted); font-weight: 600; border-bottom: 2px solid transparent; }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.card { display: flex; flex-direction: column; gap: 8px; padding: 16px; background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); text-align: left; color: var(--text); min-height: 132px;
  transition: border-color var(--fast) var(--ease), transform var(--fast) var(--ease), box-shadow var(--fast) var(--ease); }
.card:hover { border-color: var(--line-strong); box-shadow: var(--shadow); transform: translateY(-1px); }
.card h3 { margin: 0; overflow-wrap: anywhere; }
.card .meta { color: var(--muted); font-size: 13px; margin-top: auto; }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--soft); color: var(--muted); white-space: nowrap; }
.badge.accent { background: var(--danger-soft); color: var(--accent); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--text); }
.empty { padding: 36px; text-align: center; color: var(--muted); border: 1px dashed var(--line-strong); border-radius: var(--radius); }

/* Tables and lists */
.table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table th { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); background: var(--raised); }
.table tr:last-child td { border-bottom: none; }
.table td.actions { text-align: right; white-space: nowrap; }
.table-wrap { overflow-x: auto; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.section { margin-bottom: 32px; }
.section > h2 { margin-bottom: 10px; }

/* Forms and dialogs */
label { display: block; font-weight: 600; margin: 12px 0 5px; }
input[type="text"], input[type="email"], input[type="search"], input[type="number"], select, textarea {
  width: 100%; min-height: 38px; padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: var(--radius-small);
  background: var(--panel); color: var(--text); }
textarea { min-height: 72px; resize: vertical; }
input[type="file"] { width: 100%; padding: 8px 0; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; margin: 8px 0; }
.check input { margin-top: 4px; }
.check small { display: block; color: var(--muted); }
.hint { color: var(--muted); font-size: 13px; margin: 4px 0 0; }
dialog { border: none; padding: 0; background: transparent; max-width: min(620px, calc(100vw - 24px)); width: 100%; }
.modal { background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 14px; padding: 22px; box-shadow: var(--shadow);
  max-height: calc(100vh - 48px); overflow: auto; }
.modal .actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; flex-wrap: wrap; }
.picker-results { list-style: none; margin: 6px 0 0; padding: 0; border: 1px solid var(--line); border-radius: var(--radius-small); max-height: 220px; overflow: auto; }
.picker-results li button { width: 100%; text-align: left; padding: 8px 10px; background: var(--panel); border: none; border-bottom: 1px solid var(--line); color: var(--text); }
.picker-results li:last-child button { border-bottom: none; }
.picker-results li button:hover, .picker-results li button[aria-selected="true"] { background: var(--soft); }
.secret { display: flex; gap: 8px; align-items: center; padding: 10px; border-radius: var(--radius-small); background: var(--raised);
  border: 1px solid var(--line-strong); overflow-wrap: anywhere; font-family: var(--mono); font-size: 13px; }
.secret code { flex: 1; }
pre.snippet { background: var(--raised); border: 1px solid var(--line); border-radius: var(--radius-small); padding: 12px; overflow-x: auto; white-space: pre; }
.notice { padding: 10px 12px; border-radius: var(--radius-small); background: var(--warn-soft); margin: 10px 0; }
.progress { height: 6px; border-radius: 3px; background: var(--soft); overflow: hidden; }
.progress > div { height: 100%; background: var(--accent); width: 0; transition: width var(--fast) linear; }

/* Viewer */
.viewer { position: fixed; inset: 57px 0 0 0; z-index: 4; display: flex; flex-direction: column; background: var(--bg); }
.viewer-bar { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.viewer-title { flex: 1; min-width: 160px; display: flex; align-items: baseline; gap: 10px; overflow: hidden; }
.viewer-title h2 { margin: 0; font-size: 17px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.viewer-actions { display: flex; gap: 8px; flex-wrap: wrap; }
#frame { flex: 1; width: 100%; border: 0; background: #fff; }
.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); max-width: calc(100vw - 32px); padding: 10px 16px;
  border-radius: var(--radius-small); background: var(--text); color: var(--bg); font-weight: 500; opacity: 0; pointer-events: none;
  transition: opacity var(--medium) var(--ease); z-index: 20; }
.toast.visible { opacity: 1; }
.consent { max-width: 620px; margin: 40px auto; }
.consent fieldset { border: 1px solid var(--line); border-radius: var(--radius-small); padding: 8px 14px 12px; margin: 14px 0; }
.consent legend { font-weight: 700; padding: 0 6px; }
.consent-option { display: flex; gap: 8px; align-items: baseline; font-weight: 400; margin: 6px 0; }
main > section.panel { max-width: 620px; margin: 40px auto; }

@media (max-width: 760px) {
  .topbar { padding: 10px 16px; }
  .layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--line); padding: 10px 16px; }
  .folder-list { flex-direction: row; overflow-x: auto; gap: 6px; padding-bottom: 4px; }
  .folder-list .nav-link { white-space: nowrap; border: 1px solid var(--line); }
  .sidebar-foot { flex-direction: row; flex-wrap: wrap; gap: 12px; margin-top: 8px; padding-top: 8px; }
  .main { padding: 20px 16px 40px; }
  .viewer { inset: 53px 0 0 0; }
  #identity { display: none; }
}