/* ── Layout ───────────────────────────────────────────────────── */
.app-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, #0f1a30 0%, #16213e 100%);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}

.app-brand {
  display: flex; align-items: center; gap: 0.75rem;
  font-family: var(--font-char); font-size: 1.25rem; font-weight: bold;
  color: var(--accent); cursor: pointer;
}
.app-brand svg { flex-shrink: 0; }

.app-user {
  display: flex; align-items: center; gap: 0.75rem;
}
.app-user img {
  width: 32px; height: 32px; border-radius: 50%;
  border: 2px solid var(--accent-dim);
}
.app-user-name {
  font-size: 0.875rem; color: var(--text-dim);
  max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.app-main {
  max-width: 1100px; margin: 0 auto; padding: 1.5rem;
}

/* ── Dev Mode Banner ──────────────────────────────────────────── */
.dev-banner {
  background: linear-gradient(90deg, #2c3e50, #34495e);
  color: #f39c12; text-align: center;
  padding: 0.4rem 1rem; font-size: 0.8rem;
  border-bottom: 1px solid #f39c12;
}

/* ── Setup Message ────────────────────────────────────────────── */
.setup-message {
  max-width: 600px; margin: 3rem auto; padding: 2rem;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); text-align: center;
}
.setup-message h2 { color: var(--accent); margin-bottom: 1rem; }
.setup-message code {
  display: block; background: var(--bg-input); padding: 1rem;
  border-radius: var(--radius); margin: 1rem 0; text-align: left;
  font-size: 0.85rem; white-space: pre-wrap; word-break: break-all;
}

/* ── Section Headers ──────────────────────────────────────────── */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1rem; margin-top: 2rem;
}
.section-header:first-child { margin-top: 0; }
.section-title { font-size: 1.25rem; font-weight: 600; color: var(--text-bright); }

/* ── App Body Layout ──────────────────────────────────────────── */
.app-body {
  display: flex;
  min-height: calc(100vh - 70px);
}
.app-body.has-sidebar {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 0;
}

/* ── Campaign Sidebar Layout ─────────────────────────────────── */
.campaign-sidebar {
  padding: 1rem 0;
  border-right: 1px solid var(--border);
  position: sticky;
  top: 80px;
  height: fit-content;
}
.campaign-sidebar-back {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  text-decoration: none;
  padding: 0.3rem 1rem;
  margin-bottom: 0.5rem;
}
.campaign-sidebar-back:hover { color: var(--text); }
.campaign-sidebar-title {
  font-family: var(--font-char);
  font-size: 1.1rem;
  color: var(--accent);
  padding: 0.5rem 1rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}
.campaign-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.campaign-sidebar-link {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  text-decoration: none;
  border-radius: var(--radius);
  transition: all var(--transition);
  border-left: 3px solid transparent;
}
.campaign-sidebar-link:hover {
  color: var(--text);
  background: var(--bg-input);
}
.campaign-sidebar-link.active {
  color: var(--accent);
  background: rgba(212, 165, 90, 0.08);
  border-left-color: var(--accent);
}
.campaign-content {
  padding: 1rem 0;
  min-width: 0;
}
@media (max-width: 768px) {
  .campaign-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .campaign-sidebar {
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
  }
  .campaign-sidebar-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.25rem;
  }
  .campaign-sidebar-link {
    border-left: none;
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
  }
  .campaign-sidebar-link.active { border-left: none; }
}

/* ── Responsive (T2-07) ──────────────────────────────────────── */
@media (max-width: 600px) {
  .app-header { padding: 0.5rem 0.75rem; flex-wrap: wrap; gap: 0.5rem; }
  .app-main { padding: 0.75rem; }
  .sheet-name { font-size: 1.5rem; }
  .card-grid { grid-template-columns: 1fr; }
  /* Party portraits shrink on phones so multiple fit per row. */
  .party-portrait { width: 60px; height: 60px; }
  /* Touch targets: ensure buttons meet ~44px minimum on phones. */
  .btn-sm { min-height: 40px; padding: 0.5rem 0.75rem; }
  .toast-container { bottom: 0.75rem; right: 0.75rem; left: 0.75rem; }
  .toast { max-width: none; }
  /* Responsive forms shouldn't force horizontal scroll. */
  .form-input, .form-select, .form-textarea { width: 100%; box-sizing: border-box; }
}
/* Larger-tablet adjustments — keep the 2-col grid but tighten padding. */
@media (max-width: 900px) {
  .card-grid { gap: 0.75rem; }
  .app-main { padding: 1rem; }
}