:root {
  --bg: #0f1117;
  --panel: #171a22;
  --border: #2a3040;
  --text: #e8ecf4;
  --muted: #9aa3b5;
  --accent: #7c5cff;
  --accent-soft: rgba(124, 92, 255, 0.15);
  --ok: #3ecf8e;
  --warn: #f5a623;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}
.login-card {
  width: min(400px, 100%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  display: grid;
  gap: 1rem;
}
.login-card h1 { margin: 0; font-size: 1.5rem; }
.subtitle, .lede { color: var(--muted); margin: 0; line-height: 1.5; }
label { display: grid; gap: 0.35rem; font-size: 0.9rem; }
input {
  background: #0c0e13;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.65rem 0.75rem;
}
.btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { font-size: 0.85rem; padding: 0.35rem 0.6rem; }
.login-error { color: #ff7b7b; margin: 0; font-size: 0.9rem; }

.app { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  border-right: 1px solid var(--border);
  background: #12151c;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.sidebar-brand { display: grid; gap: 0.5rem; margin-bottom: 1rem; }
.nav-section {
  margin-top: 0.75rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.nav-item {
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  cursor: pointer;
  color: var(--muted);
}
.nav-item.active, .nav-item:hover {
  background: var(--accent-soft);
  color: var(--text);
}
.sidebar-foot {
  margin-top: auto;
  display: grid;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.main { padding: 1.5rem 2rem; }
.view-head { display: flex; justify-content: space-between; align-items: start; gap: 1rem; }
.badge {
  background: rgba(245, 166, 35, 0.15);
  color: var(--warn);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-size: 0.8rem;
}
.cards { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); margin-top: 1rem; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  cursor: pointer;
}
.card h3 { margin: 0 0 0.35rem; }
.subnav { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.subnav button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  cursor: pointer;
}
.subnav button.active { border-color: var(--accent); color: var(--text); background: var(--accent-soft); }
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  line-height: 1.55;
}
.panel dl { display: grid; grid-template-columns: 140px 1fr; gap: 0.35rem 1rem; margin: 0; }
.panel dt { color: var(--muted); }
.panel dd { margin: 0; }

.grade-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-bottom: 0.5rem;
  padding: 0.75rem 1rem;
  background: #12151c;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.9rem;
}
.grade-note { margin: 0.5rem 0 1rem; }
.grade-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.15rem;
  margin-bottom: 1rem;
}
.grade-card.graded { opacity: 0.55; }
.grade-card-head h3 { margin: 0.15rem 0 0.35rem; font-size: 1.05rem; }
.grade-card .meta { margin: 0; color: var(--muted); font-size: 0.8rem; }
.grade-card h4 { margin: 0 0 0.4rem; font-size: 0.85rem; color: var(--muted); font-weight: 600; }
.grade-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 0.75rem 0;
}
.bubble.comment {
  margin: 0;
  padding: 0.75rem;
  background: #0c0e13;
  border-radius: 8px;
  white-space: pre-wrap;
  line-height: 1.45;
}
.draft-edit {
  width: 100%;
  min-height: 110px;
  background: #0c0e13;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.65rem 0.75rem;
  font: inherit;
  line-height: 1.45;
  resize: vertical;
}
.grade-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.grade-btn.good { background: rgba(62, 207, 142, 0.2); border-color: var(--ok); }
.grade-btn.tweak { background: var(--accent-soft); border-color: var(--accent); }
.grade-btn.never { background: rgba(255, 123, 123, 0.15); border-color: #ff7b7b; }
.grade-btn.skip { color: var(--muted); }
.vid-link { font-size: 0.85rem; color: var(--accent); }
.pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}
.playbook {
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 0;
  max-height: 70vh;
  overflow: auto;
}
.muted { color: var(--muted); }

@media (max-width: 800px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
  .grade-grid { grid-template-columns: 1fr; }
}