/* ============================================================
   theme.css — Unified Material + UI Token Model
   ============================================================ */

/* ---------- Base Material Tokens (fallbacks) ---------- */
:root {
  --md-sys-color-primary: #268bd2;
  --md-sys-color-on-primary: #ffffff;

  --md-sys-color-surface: #fdf6e3;
  --md-sys-color-on-surface: #073642;

  --md-sys-color-surface-variant: #eee8d5;
  --md-sys-color-outline: #93a1a1;

  /* ---------- Derived UI Tokens (ThemeEngine overwrites) ---------- */
  --bg-app: var(--md-sys-color-surface);
  --bg-card: var(--md-sys-color-surface-variant);
  --text-main: var(--md-sys-color-on-surface);
  --text-primary: var(--md-sys-color-on-surface);
  --card-border: var(--md-sys-color-outline);
  --table-header-bg: var(--md-sys-color-surface-variant);

  /* Toggles */
  --toggle-off-track: var(--card-border);
  --toggle-on-track: var(--md-sys-color-primary);
  --toggle-knob: var(--md-sys-color-on-primary);

  /* Buttons */
  --button-hover: rgba(255, 255, 255, 0.15);

  /* Toast */
  --toast-bg-success: var(--md-sys-color-primary);
  --toast-bg-error: var(--md-sys-color-outline);
  --toast-fg: var(--md-sys-color-on-primary);

  /* Card shadow */
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* ============================================================
   Global App Scaffolding
   ============================================================ */

body {
  margin: 0;
  background: var(--bg-app);
  color: var(--text-main);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app-header {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  box-shadow: var(--card-shadow);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-title h1 {
  margin: 0;
  font-size: 1.4rem;
}

.header-title .subtitle {
  margin: 2px 0 0;
  font-size: 0.85rem;
  opacity: 0.9;
}

.header-nav {
  display: flex;
  gap: 8px;
}

.nav-btn {
  text-decoration: none;
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  color: var(--md-sys-color-on-primary);
  transition: background 0.2s ease;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

.header-accent {
  height: 3px;
  background: linear-gradient(90deg, var(--md-sys-color-primary), transparent);
}

.page-content {
  max-width: 1100px;
  margin: 16px auto;
  padding: 0 16px 24px;
}

/* Toast */

.toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--toast-bg-success);
  color: var(--toast-fg);
  padding: 8px 14px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease-out, transform 0.2s ease-out;
  font-size: 0.85rem;
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(-4px);
}

.toast.error {
  background: var(--toast-bg-error);
}