.muted { color: var(--muted); }
.small { font-size: 13px; }
.err { color: var(--bad); min-height: 1.2em; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.card h2 { margin: 0 0 12px; font-size: 18px; }

.login { position: fixed; inset: 0; display: grid; place-items: center; padding: 16px; }
.login form { width: min(420px, 100%); display: grid; gap: 12px; }
.login h1 { margin: 0; font-size: 26px; }
.login input { padding: 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--text); font-size: 16px; }

.screen {
  min-height: 100vh; padding: 20px 24px; display: grid; gap: 16px;
  grid-template-columns: minmax(0, 1fr) 320px;
  grid-template-rows: auto auto 1fr auto;
  grid-template-areas: "top top" "banner banner" "viewer side" "foot foot";
}
.top { grid-area: top; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.top h1 { margin: 0; font-size: clamp(24px, 2.6vw, 40px); }
.top p { margin: 4px 0 0; font-size: clamp(14px, 1.2vw, 20px); }
.tools { display: flex; gap: 10px; flex-wrap: wrap; }
.banner { grid-area: banner; padding: 12px 16px; border-radius: 10px; background: #3b1d1d; border: 1px solid var(--bad); }

.viewer { grid-area: viewer; min-width: 0; }
.viewer-head { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; min-height: 40px; }
.mode { padding: 4px 12px; border-radius: 999px; background: var(--accent); color: #1a1200; font-weight: 700; }
.tabs { display: flex; gap: 8px; }
.tabs button { border: 1px solid var(--line); background: var(--panel-2); color: var(--muted); border-radius: 999px; padding: 6px 14px; }
.tabs button.on { color: #1a1200; background: var(--text); border-color: var(--text); }
.frame .verdict { font-size: clamp(18px, 1.6vw, 28px); }
.placeholder {
  display: grid; place-items: center; align-content: center; gap: 10px; min-height: 50vh; text-align: center;
  border: 2px dashed var(--line); border-radius: var(--radius); color: var(--muted); font-size: 20px; padding: 24px;
}
.placeholder .big { font-size: clamp(26px, 3vw, 44px); color: var(--text); font-weight: 700; }

.side { grid-area: side; display: grid; gap: 16px; align-content: start; }
.qr-card { text-align: center; }
.qr svg { width: 100%; height: auto; max-width: 260px; border-radius: 10px; }
.stages.vertical { flex-direction: column; }
.stages.vertical .stage { flex-direction: row; justify-content: flex-start; padding: 8px 12px; gap: 12px; text-align: left; }
.stages.vertical .stage .name { flex: 1; font-size: 16px; }
.total { margin: 12px 0 0; font-weight: 700; min-height: 1.2em; }
.disclaimer { grid-area: foot; }

@media (max-width: 900px) {
  .screen { grid-template-columns: 1fr; grid-template-areas: "top" "banner" "side" "viewer" "foot"; padding: 16px; }
  .pair { grid-template-columns: 1fr; }
}