:root {
  --bg: #f4f5f6;
  --surface: #ffffff;
  --ink: #14181c;
  --muted: #5a6470;
  --line: #dde1e5;
  --accent: #0a2240;
  --ok: #1f7a4d;
  --warn: #a15c00;
  --bad: #b3261e;
  --radius: 14px;
  font-family: Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; }
button { font: inherit; cursor: pointer; }
[hidden] { display: none !important; }

/* Home */
.home {
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: clamp(24px, 4vw, 64px);
  gap: 32px;
}
.home__header h1 { margin: 0; font-weight: 500; font-size: clamp(32px, 4vw, 56px); letter-spacing: -0.01em; }
.home__sub { margin: 8px 0 0; color: var(--muted); font-size: 18px; }

.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  align-content: start;
}
.tile {
  text-align: left;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform .12s ease, box-shadow .12s ease;
}
.tile:active { transform: scale(.98); }
.tile__name { font-size: 24px; font-weight: 500; }
.tile__url { color: var(--muted); font-size: 14px; word-break: break-all; }
.tile__note { margin-top: auto; font-size: 13px; color: var(--muted); }
.tile--dev { border-style: dashed; }

.statusbar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.pill {
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--muted);
}
.pill--ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, transparent); }
.pill--warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 35%, transparent); }
.pill--bad { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 35%, transparent); }
.linkish { margin-left: auto; background: none; border: 0; color: var(--muted); text-decoration: underline; padding: 6px; }

/* Viewer */
.viewer { position: fixed; inset: 0; background: var(--surface); display: flex; flex-direction: column; z-index: 10; }
.viewer__bar {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px 0 20px;
  background: var(--accent);
  color: #fff;
}
.viewer__title { font-size: 16px; opacity: .9; }
.viewer__close {
  width: 48px; height: 48px;
  border: 0; border-radius: 50%;
  background: transparent; color: inherit;
  font-size: 32px; line-height: 1;
}
.viewer__frame { flex: 1; width: 100%; border: 0; }
.viewer__offline {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; padding: 32px; text-align: center; color: var(--muted);
}
.viewer__offline h2 { margin: 8px 0 0; color: var(--ink); font-weight: 500; }
.viewer__offline p { margin: 0 0 12px; max-width: 420px; }

.btn {
  border: 0; border-radius: 10px;
  padding: 14px 22px; min-height: 48px;
  background: var(--accent); color: #fff;
}
.btn--ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn--danger { background: transparent; color: var(--bad); border: 1px solid color-mix(in srgb, var(--bad) 40%, transparent); }

/* Diagnostics */
.diag {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(520px, 100%);
  background: var(--surface);
  border-left: 1px solid var(--line);
  box-shadow: -8px 0 24px rgba(0,0,0,.08);
  padding: 20px;
  overflow: auto;
  z-index: 20;
}
.diag__head { display: flex; justify-content: space-between; align-items: center; }
.diag__head h2 { margin: 0; font-weight: 500; }
.diag__head .viewer__close { color: var(--ink); }
.diag__list { display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; font-size: 14px; }
.diag__list dt { color: var(--muted); }
.diag__list dd { margin: 0; word-break: break-all; font-family: ui-monospace, Menlo, monospace; font-size: 13px; }
.diag__actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }