/**
 * MD3_FOUNDATION_V230 — Google Material Design 3 Foundation für freizy
 * Additiv zu freizy-md3.css. Alle Klassen mit .md3-* prefix.
 * Farb-Tokens werden aus freizy-md3.css übernommen (:root --md-*).
 */

:root {
  /* Corner Radius Tokens */
  --md3-shape-none:       0;
  --md3-shape-xs:         4px;
  --md3-shape-sm:         8px;
  --md3-shape-md:        12px;
  --md3-shape-lg:        16px;
  --md3-shape-xl:        28px;
  --md3-shape-full:    9999px;

  /* Elevation Tokens (MD3 System Levels 0-5) */
  --md3-elev-0:  none;
  --md3-elev-1:  0 1px 2px 0 rgba(0,0,0,.30), 0 1px 3px 1px rgba(0,0,0,.15);
  --md3-elev-2:  0 1px 2px 0 rgba(0,0,0,.30), 0 2px 6px 2px rgba(0,0,0,.15);
  --md3-elev-3:  0 4px 8px 3px rgba(0,0,0,.15), 0 1px 3px 0 rgba(0,0,0,.30);
  --md3-elev-4:  0 6px 10px 4px rgba(0,0,0,.15), 0 2px 3px 0 rgba(0,0,0,.30);
  --md3-elev-5:  0 8px 12px 6px rgba(0,0,0,.15), 0 4px 4px 0 rgba(0,0,0,.30);

  /* State Layer Opacities */
  --md3-state-hover:    0.08;
  --md3-state-focus:    0.12;
  --md3-state-pressed:  0.12;
  --md3-state-dragged:  0.16;

  /* Motion Tokens */
  --md3-motion-short:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --md3-motion-med:     250ms cubic-bezier(0.4, 0, 0.2, 1);
  --md3-motion-long:    350ms cubic-bezier(0.4, 0, 0.2, 1);
  --md3-motion-emphasized: 500ms cubic-bezier(0.2, 0, 0, 1);

  /* Typography Family */
  --md3-font-plain:     'Inter', system-ui, sans-serif;
  --md3-font-brand:     'Outfit', 'Inter', sans-serif;
}

/* ─────────────────────────────────────────────────
 * TYPOGRAPHY SCALE (MD3)
 * ───────────────────────────────────────────────── */
.md3-display-large   { font: 400 57px/64px var(--md3-font-brand); letter-spacing: -0.25px; }
.md3-display-medium  { font: 400 45px/52px var(--md3-font-brand); }
.md3-display-small   { font: 400 36px/44px var(--md3-font-brand); }
.md3-headline-large  { font: 400 32px/40px var(--md3-font-brand); }
.md3-headline-medium { font: 600 28px/36px var(--md3-font-brand); }
.md3-headline-small  { font: 600 24px/32px var(--md3-font-brand); }
.md3-title-large     { font: 500 22px/28px var(--md3-font-plain); }
.md3-title-medium    { font: 500 16px/24px var(--md3-font-plain); letter-spacing: 0.15px; }
.md3-title-small     { font: 500 14px/20px var(--md3-font-plain); letter-spacing: 0.1px; }
.md3-body-large      { font: 400 16px/24px var(--md3-font-plain); letter-spacing: 0.5px; }
.md3-body-medium     { font: 400 14px/20px var(--md3-font-plain); letter-spacing: 0.25px; }
.md3-body-small      { font: 400 12px/16px var(--md3-font-plain); letter-spacing: 0.4px; }
.md3-label-large     { font: 500 14px/20px var(--md3-font-plain); letter-spacing: 0.1px; }
.md3-label-medium    { font: 500 12px/16px var(--md3-font-plain); letter-spacing: 0.5px; }
.md3-label-small     { font: 500 11px/16px var(--md3-font-plain); letter-spacing: 0.5px; }

/* ─────────────────────────────────────────────────
 * MATERIAL SYMBOLS (Icons)
 * ───────────────────────────────────────────────── */
.material-symbols-outlined,
.material-symbols-rounded,
.material-symbols-sharp {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  font-size: 24px;
  line-height: 1;
  vertical-align: middle;
  display: inline-block;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}
.material-symbols-outlined.md3-icon-sm  { font-size: 20px; font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20; }
.material-symbols-outlined.md3-icon-md  { font-size: 24px; }
.material-symbols-outlined.md3-icon-lg  { font-size: 32px; font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 32; }
.material-symbols-outlined.md3-icon-xl  { font-size: 40px; font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 40; }
.material-symbols-outlined.md3-icon-filled { font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24; }

/* ─────────────────────────────────────────────────
 * STATE LAYER (universelle Hover/Focus/Pressed)
 * ───────────────────────────────────────────────── */
.md3-state {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.md3-state::before {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--md3-motion-short);
  pointer-events: none;
  z-index: 0;
}
.md3-state:hover::before   { opacity: var(--md3-state-hover); }
.md3-state:focus-visible::before { opacity: var(--md3-state-focus); }
.md3-state:active::before  { opacity: var(--md3-state-pressed); }
.md3-state > * { position: relative; z-index: 1; }

/* ─────────────────────────────────────────────────
 * BUTTONS (MD3 5 Varianten)
 * ───────────────────────────────────────────────── */
.md3-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border: none;
  border-radius: var(--md3-shape-full);
  font: 500 14px/20px var(--md3-font-plain);
  letter-spacing: 0.1px;
  cursor: pointer;
  text-decoration: none;
  transition: box-shadow var(--md3-motion-short), background-color var(--md3-motion-short);
  min-height: 40px;
  user-select: none;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.md3-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--md3-motion-short);
  pointer-events: none;
}
.md3-btn > * { position: relative; z-index: 1; }
.md3-btn:hover::before   { opacity: 0.08; }
.md3-btn:focus-visible::before { opacity: 0.12; }
.md3-btn:active::before  { opacity: 0.12; }
.md3-btn:disabled { opacity: 0.38; cursor: not-allowed; pointer-events: none; }
.md3-btn .material-symbols-outlined { font-size: 18px; }

/* Filled (primary) */
.md3-btn-filled { background: var(--md-primary); color: var(--md-on-primary); }
.md3-btn-filled:hover { box-shadow: var(--md3-elev-1); }

/* Tonal (secondary emphasis) */
.md3-btn-tonal { background: var(--md-secondary-cont); color: var(--md-on-secondary-cont); }
.md3-btn-tonal:hover { box-shadow: var(--md3-elev-1); }

/* Outlined */
.md3-btn-outlined { background: transparent; color: var(--md-primary); border: 1px solid var(--md-outline); }
.md3-btn-outlined:hover { border-color: var(--md-primary); }

/* Text */
.md3-btn-text { background: transparent; color: var(--md-primary); padding: 10px 12px; }

/* Elevated */
.md3-btn-elevated { background: var(--md-surf-container-low); color: var(--md-primary); box-shadow: var(--md3-elev-1); }
.md3-btn-elevated:hover { box-shadow: var(--md3-elev-2); }

/* Size variants */
.md3-btn-sm { padding: 6px 16px; min-height: 32px; font-size: 12px; }
.md3-btn-lg { padding: 14px 32px; min-height: 56px; font-size: 16px; }

/* ─────────────────────────────────────────────────
 * FAB — Floating Action Button
 * ───────────────────────────────────────────────── */
.md3-fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px; min-height: 56px;
  border-radius: var(--md3-shape-lg);
  background: var(--md-primary-container);
  color: var(--md-on-primary-cont);
  border: none;
  cursor: pointer;
  box-shadow: var(--md3-elev-3);
  transition: box-shadow var(--md3-motion-short);
  text-decoration: none;
}
.md3-fab:hover { box-shadow: var(--md3-elev-4); }
.md3-fab-sm { min-width: 40px; min-height: 40px; border-radius: var(--md3-shape-md); }
.md3-fab-lg { min-width: 96px; min-height: 96px; border-radius: var(--md3-shape-xl); }
.md3-fab-ext { padding: 0 20px 0 16px; gap: 12px; min-width: auto; font: 500 14px/20px var(--md3-font-plain); }

/* ─────────────────────────────────────────────────
 * CARDS (MD3 3 Varianten)
 * ───────────────────────────────────────────────── */
.md3-card {
  border-radius: var(--md3-shape-md);
  padding: 16px;
  transition: box-shadow var(--md3-motion-short);
}
.md3-card-elevated { background: var(--md-surf-container-low); box-shadow: var(--md3-elev-1); }
.md3-card-elevated:hover { box-shadow: var(--md3-elev-2); }
.md3-card-filled { background: var(--md-surf-container); }
.md3-card-outlined { background: var(--md-surface); border: 1px solid var(--md-outline-variant); }

.md3-card-header  { padding: 0 0 12px; font: 600 16px/24px var(--md3-font-plain); }
.md3-card-body    { padding: 0; }
.md3-card-actions { padding: 8px 0 0; display: flex; gap: 8px; justify-content: flex-end; }

/* ─────────────────────────────────────────────────
 * CHIPS
 * ───────────────────────────────────────────────── */
.md3-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--md3-shape-sm);
  border: 1px solid var(--md-outline);
  background: transparent;
  color: var(--md-on-surface);
  font: 500 14px/20px var(--md3-font-plain);
  cursor: pointer;
  transition: background var(--md3-motion-short);
  text-decoration: none;
}
.md3-chip:hover { background: rgba(0,0,0,0.08); }
.md3-chip-selected { background: var(--md-secondary-cont); color: var(--md-on-secondary-cont); border-color: transparent; }
.md3-chip-assist   { border-color: var(--md-outline); }
.md3-chip-filter   { }
.md3-chip .material-symbols-outlined { font-size: 18px; }

/* ─────────────────────────────────────────────────
 * TEXT FIELDS
 * ───────────────────────────────────────────────── */
.md3-textfield {
  position: relative;
  display: block;
  margin-bottom: 16px;
}
.md3-textfield-input {
  width: 100%;
  padding: 16px 16px 8px;
  border: 1px solid var(--md-outline);
  border-radius: var(--md3-shape-xs);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font: 400 16px/24px var(--md3-font-plain);
  transition: border-color var(--md3-motion-short);
}
.md3-textfield-input:focus {
  outline: none;
  border-color: var(--md-primary);
  border-width: 2px;
  padding: 15px 15px 7px;
}
.md3-textfield-label {
  position: absolute;
  top: 16px; left: 16px;
  color: var(--md-on-surface-variant);
  font: 400 16px/24px var(--md3-font-plain);
  pointer-events: none;
  transition: all var(--md3-motion-short);
  background: var(--md-surface);
  padding: 0 4px;
}
.md3-textfield-input:focus + .md3-textfield-label,
.md3-textfield-input:not(:placeholder-shown) + .md3-textfield-label {
  top: -8px;
  font-size: 12px;
  color: var(--md-primary);
}

/* Filled variant */
.md3-textfield-filled .md3-textfield-input {
  background: var(--md-surf-container-high);
  border: none;
  border-bottom: 1px solid var(--md-outline);
  border-radius: var(--md3-shape-xs) var(--md3-shape-xs) 0 0;
}
.md3-textfield-filled .md3-textfield-input:focus { border-bottom: 2px solid var(--md-primary); padding-bottom: 7px; }

/* ─────────────────────────────────────────────────
 * DIALOG / MODAL
 * ───────────────────────────────────────────────── */
.md3-dialog-scrim {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 9998;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  animation: md3-fade var(--md3-motion-med);
}
.md3-dialog {
  background: var(--md-surf-container-high);
  color: var(--md-on-surface);
  border-radius: var(--md3-shape-xl);
  padding: 24px;
  max-width: 560px;
  width: 100%;
  box-shadow: var(--md3-elev-3);
}
.md3-dialog-title {
  font: 500 24px/32px var(--md3-font-brand);
  margin: 0 0 16px;
  color: var(--md-on-surface);
}
.md3-dialog-body { font: 400 14px/20px var(--md3-font-plain); color: var(--md-on-surface-variant); margin-bottom: 24px; }
.md3-dialog-actions { display: flex; gap: 8px; justify-content: flex-end; }

@keyframes md3-fade { from { opacity: 0; } to { opacity: 1; } }

/* ─────────────────────────────────────────────────
 * SNACKBAR
 * ───────────────────────────────────────────────── */
.md3-snackbar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--md-on-surface);
  color: var(--md-surface);
  padding: 14px 16px;
  border-radius: var(--md3-shape-xs);
  font: 500 14px/20px var(--md3-font-plain);
  box-shadow: var(--md3-elev-3);
  z-index: 9999;
  max-width: 90vw;
  animation: md3-snackbar-in var(--md3-motion-med);
}
@keyframes md3-snackbar-in { from { transform: translate(-50%, 100px); opacity: 0; } to { transform: translate(-50%, 0); opacity: 1; } }

/* ─────────────────────────────────────────────────
 * LIST (MD3)
 * ───────────────────────────────────────────────── */
.md3-list { list-style: none; padding: 8px 0; margin: 0; }
.md3-list-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  min-height: 56px;
  color: var(--md-on-surface);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--md3-motion-short);
}
.md3-list-item:hover { background: rgba(0,0,0,0.08); }
.md3-list-item-leading { color: var(--md-on-surface-variant); flex-shrink: 0; }
.md3-list-item-content { flex: 1; min-width: 0; }
.md3-list-item-title { font: 400 16px/24px var(--md3-font-plain); }
.md3-list-item-support { font: 400 14px/20px var(--md3-font-plain); color: var(--md-on-surface-variant); }
.md3-list-item-trailing { color: var(--md-on-surface-variant); flex-shrink: 0; }

/* ─────────────────────────────────────────────────
 * SURFACES / DIVIDERS / SPACING HELPERS
 * ───────────────────────────────────────────────── */
.md3-divider { height: 1px; background: var(--md-outline-variant); border: 0; margin: 8px 0; }
.md3-surface-container-low  { background: var(--md-surf-container-low); }
.md3-surface-container      { background: var(--md-surf-container); }
.md3-surface-container-high { background: var(--md-surf-container-high); }

/* Utility spacing (4/8/12/16/24/32) */
.md3-gap-1 { gap: 4px; } .md3-gap-2 { gap: 8px; } .md3-gap-3 { gap: 12px; }
.md3-gap-4 { gap: 16px; } .md3-gap-6 { gap: 24px; } .md3-gap-8 { gap: 32px; }
.md3-pad-1 { padding: 4px; } .md3-pad-2 { padding: 8px; } .md3-pad-3 { padding: 12px; }
.md3-pad-4 { padding: 16px; } .md3-pad-6 { padding: 24px; } .md3-pad-8 { padding: 32px; }