/* ==========================================================================
   CUEVANCE Layout Styles - Time & Duration Calculator
   ========================================================================== */

.app-container {
  max-width: 480px;
  margin: 0 auto;
  min-height: auto;
  display: flex;
  flex-direction: column;
  padding: 16px 14px;
  position: relative;
  box-sizing: border-box;
}

@media (max-width: 600px) {
  .app-container {
    height: 100vh;
    height: 100dvh;
    max-height: 100dvh;
    padding: 8px 12px 10px;
    overflow: hidden;
  }
}

/* Top Header */
.top-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 2px 8px;
  border-bottom: 1px solid var(--bg-card-border);
  margin-bottom: 8px;
  flex-shrink: 0;
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.brand-logo-img {
  display: block;
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px var(--accent-cyan-glow));
}

.brand-title {
  font-size: var(--text-base);
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent-cyan);
  white-space: nowrap;
  line-height: 1.2;
}

.header-right-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* Tab Switcher */
.tab-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-bottom: 8px;
  background: var(--bg-input);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--bg-card-border);
  flex-shrink: 0;
}

.btn-nav-tab {
  padding: 6px 10px;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-nav-tab:hover {
  color: var(--text-primary);
}

.btn-nav-tab.tab-active {
  background: var(--bg-card);
  color: var(--accent-cyan);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  border: 1px solid var(--accent-cyan-glow);
}

.tab-badge {
  background: var(--accent-cyan);
  color: var(--accent-on-cyan);
  font-size: 9px;
  font-weight: 800;
  padding: 1px 6px;
  border-radius: var(--radius-full);
}

/* Main Flow Container */
.main-flow-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
  overflow: hidden;
}

.tab-content-panel {
  display: none;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  min-height: 0;
  height: 100%;
}

.tab-content-panel.active-panel {
  display: flex;
}

/* Footer */
.app-footer {
  margin-top: auto;
  padding-top: 6px;
  border-top: 1px solid var(--bg-card-border);
  flex-shrink: 0;
}

.footer-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-dim);
}

.footer-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}