/* ============================================================
   LAYOUT — Header, Sidebar, Main grid
   ============================================================ */

.xh-landing,
.xh-loading-screen,
body {
  background: #0A0A0A;
}

.xh-app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header (sticky 52px) */
.xh-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--panel-pad);
  height: 52px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.xh-logo {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-0);
}

.xh-logo span { color: var(--cyan); }

.xh-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.xh-nav-btn {
  background: none;
  border: none;
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 14px;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.15s;
  letter-spacing: 0.06em;
}

.xh-nav-btn:hover { color: var(--text-1); background: var(--bg-3); }
.xh-nav-btn.active { color: var(--cyan); background: var(--cyan-dim); }

.xh-header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.xh-status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-2);
  letter-spacing: 0.06em;
}

.xh-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: var(--cyan-glow);
}

.xh-entity-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-1);
}

/* Body: sidebar + main */
.xh-body {
  display: flex;
  flex: 1;
  min-height: 0;
}

/* Sidebar (220px fixed) */
.xh-sidebar {
  width: 220px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  background: var(--bg-1);
  padding: var(--panel-pad);
  overflow-y: auto;
}

.xh-sidebar-section {
  margin-bottom: var(--panel-pad);
}

.xh-sidebar-title {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-2);
  margin-bottom: 8px;
}

.xh-sidebar-item {
  font-size: 12px;
  color: var(--text-1);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}

/* Main scroll area */
.xh-main {
  flex: 1;
  overflow-y: auto;
  padding: var(--panel-pad);
}

.xh-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--panel-pad);
  flex-wrap: wrap;
  gap: 12px;
}

.xh-page-title {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-0);
}

.xh-grid {
  display: grid;
  gap: var(--panel-pad);
}

.xh-grid-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.xh-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.xh-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (max-width: 1200px) {
  .xh-grid-5 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .xh-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .xh-sidebar { display: none; }
  .xh-grid-5, .xh-grid-3, .xh-grid-2 { grid-template-columns: 1fr; }
}

/* Landing */
.xh-landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--panel-pad);
}
.xh-landing-header { text-align: center; margin-bottom: 24px; }
.xh-landing-sub { font-family: var(--font-mono); font-size: 11px; color: var(--text-2); margin-top: 4px; }
.xh-landing-main { max-width: 420px; width: 100%; }
.xh-hero {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-0);
  margin-bottom: 12px;
  line-height: 1.4;
}
.xh-hero-desc { font-size: 12px; color: var(--text-1); margin-bottom: 24px; line-height: 1.5; }
.xh-form .xh-btn-primary { width: 100%; margin-top: 8px; }
.xh-required { color: var(--red); }
.xh-optional { color: var(--text-2); font-size: 11px; }

.xh-auth-row {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-2);
}

.xh-auth-row-label {
  margin-bottom: 8px;
}

.xh-auth-buttons {
  display: flex;
  gap: 8px;
}

.xh-auth-btn {
  flex: 1;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-1);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.xh-auth-btn:hover {
  background: #FFFFFF;
  color: #000000;
  border-color: #FFFFFF;
}

/* Loading screen */
.xh-loading-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--panel-pad);
}
.xh-loading-logo { font-family: var(--font-mono); font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.xh-loading-logo span { color: var(--cyan); }
.xh-loading-sub { font-family: var(--font-mono); font-size: 11px; color: var(--text-2); margin-bottom: 24px; }
.xh-loading-steps { width: 100%; max-width: 400px; margin-bottom: 24px; }
.xh-loading-progress { width: 100%; max-width: 400px; height: 4px; background: var(--bg-3); border-radius: 999px; overflow: hidden; }