/* ─────────────────────────────────────────────────────────────────
   25-shared.css — Shared Components (Base)

   Foundation layer used by ALL redesigned areas (24+). Defines:
   • .mb-btn — Button system (primary/secondary/danger/ghost · xs/sm/md/lg)
   • .mb-icon-btn — Icon-only buttons
   • .mb-field — Form controls (input/select/textarea/check/radio)
   • .mb-modal — Modal shell + backdrop (.mb-modal-bg)
   • .mb-pill — Status badges
   • .mb-seg — Segmented controls
   • .mb-toast — Toasts
   • .mb-empty — Empty-state template
   • .mb-skeleton — Skeleton loader
   • .mb-paywall — Feature-gate overlay
   • .mb-theme-toggle — 3-segment theme switch
   • .mb-mono — Tabular numeric font

   Tokens from 01-base.css. No hardcoded colors.
   Namespace .mb-* — never collides with existing .btn/.card/.field/.modal/.mbg.
   ───────────────────────────────────────────────────────────────── */

/* ══ BUTTONS ═════════════════════════════════════════════════════ */
.mb-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 34px; padding: 0 14px;
  border: 1px solid var(--b1); background: var(--s2); color: var(--t1);
  border-radius: var(--r); cursor: pointer;
  font: inherit; font-size: 12.5px; font-weight: 500;
  transition: var(--tr);
  white-space: nowrap;
}
.mb-btn:hover { background: var(--s3); }
.mb-btn:focus-visible { outline: 2px solid var(--np); outline-offset: 2px; }
.mb-btn:disabled, .mb-btn[aria-disabled="true"] {
  opacity: 0.5; cursor: not-allowed; pointer-events: none;
}

.mb-btn--primary {
  background: var(--np); border-color: transparent; color: #fff;
}
.mb-btn--primary:hover { filter: brightness(1.08); background: var(--np); }

.mb-btn--danger {
  background: transparent; border-color: var(--b2); color: #e05252;
}
.mb-btn--danger:hover { background: rgba(224,82,82,.1); border-color: #e05252; }

.mb-btn--ghost { background: transparent; border-color: transparent; }
.mb-btn--ghost:hover { background: var(--s2); border-color: var(--b1); }

.mb-btn--outline { background: transparent; }
.mb-btn--outline:hover { background: var(--s2); }

.mb-btn--xs { height: 24px; padding: 0 8px; font-size: 11px; border-radius: 5px; }
.mb-btn--sm { height: 30px; padding: 0 12px; font-size: 12px; }
.mb-btn--lg { height: 42px; padding: 0 18px; font-size: 14px; }
.mb-btn--block { width: 100%; height: 38px; font-size: 13px; }

.mb-btn--loading { pointer-events: none; position: relative; color: transparent !important; }
.mb-btn--loading::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 14px; height: 14px; border-radius: 999px;
  border: 2px solid currentColor; border-top-color: transparent;
  animation: mb-spin .7s linear infinite;
  color: var(--t1);
}
.mb-btn--primary.mb-btn--loading::after { color: #fff; }
@keyframes mb-spin { to { transform: rotate(360deg); } }

/* ── Icon buttons ──────────────────────────────────────────────── */
.mb-icon-btn {
  width: 30px; height: 30px; border-radius: var(--r);
  border: 1px solid var(--b1); background: var(--s1);
  display: inline-grid; place-items: center;
  color: var(--t2); cursor: pointer; transition: var(--tr);
  flex-shrink: 0;
}
.mb-icon-btn:hover { background: var(--s2); color: var(--t1); }
.mb-icon-btn:focus-visible { outline: 2px solid var(--np); outline-offset: 2px; }
.mb-icon-btn--sm { width: 26px; height: 26px; }
.mb-icon-btn--lg { width: 34px; height: 34px; }
.mb-icon-btn--danger:hover { color: #e05252; border-color: #e05252; }

/* ══ FORMS ═══════════════════════════════════════════════════════ */
.mb-field {
  display: flex; flex-direction: column; gap: 6px;
  min-width: 0;
}
.mb-field__label {
  font-size: 12px; font-weight: 500; color: var(--t2);
  display: flex; align-items: center; gap: 6px;
}
.mb-field__label-req {
  color: var(--np); font-weight: 600;
}

.mb-field__input,
.mb-field__select,
.mb-field__textarea {
  width: 100%;
  height: 36px; padding: 0 12px;
  background: var(--s1);
  border: 1px solid var(--b1); border-radius: var(--r);
  color: var(--t1);
  font: inherit; font-size: 13px;
  transition: var(--tr);
  outline: none;
}
.mb-field__textarea { height: auto; min-height: 80px; padding: 10px 12px; resize: vertical; line-height: 1.5; }
.mb-field__input::placeholder,
.mb-field__textarea::placeholder { color: var(--t4); }
.mb-field__input:hover,
.mb-field__select:hover,
.mb-field__textarea:hover { border-color: var(--b2); }
.mb-field__input:focus,
.mb-field__select:focus,
.mb-field__textarea:focus {
  border-color: var(--np); background: var(--s1);
  box-shadow: 0 0 0 3px rgba(200,149,90,.15);
}

.mb-field--invalid .mb-field__input,
.mb-field--invalid .mb-field__select,
.mb-field--invalid .mb-field__textarea {
  border-color: #e05252;
  box-shadow: 0 0 0 3px rgba(224,82,82,.12);
}

.mb-field__hint { font-size: 11.5px; color: var(--t3); line-height: 1.4; }
.mb-field__error { font-size: 11.5px; color: #e05252; font-weight: 500; }

/* input with prefix/suffix */
.mb-field__group {
  display: flex; align-items: center;
  background: var(--s1); border: 1px solid var(--b1);
  border-radius: var(--r); transition: var(--tr);
}
.mb-field__group:focus-within {
  border-color: var(--np);
  box-shadow: 0 0 0 3px rgba(200,149,90,.15);
}
.mb-field__group .mb-field__input {
  background: transparent; border: 0; box-shadow: none;
}
.mb-field__group .mb-field__input:focus { box-shadow: none; }
.mb-field__affix {
  padding: 0 12px; font-size: 12.5px; color: var(--t3);
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.mb-field__affix--pre { border-right: 1px solid var(--b1); }
.mb-field__affix--suf { border-left: 1px solid var(--b1); }

/* select */
.mb-field__select {
  appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path fill='none' stroke='%238a8a8a' stroke-width='1.5' stroke-linecap='round' d='M1 1l4 4 4-4'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

/* check / radio */
.mb-check, .mb-radio {
  display: inline-flex; align-items: center; gap: 8px;
  cursor: pointer; font-size: 13px; color: var(--t1);
  user-select: none;
}
.mb-check input, .mb-radio input {
  appearance: none; -webkit-appearance: none;
  width: 16px; height: 16px;
  border: 1.5px solid var(--b2); background: var(--s1);
  cursor: pointer; transition: var(--tr);
  flex-shrink: 0;
  margin: 0;
}
.mb-check input { border-radius: 4px; }
.mb-radio input { border-radius: 999px; }
.mb-check input:hover, .mb-radio input:hover { border-color: var(--np); }
.mb-check input:checked, .mb-radio input:checked {
  background: var(--np); border-color: var(--np);
}
.mb-check input:checked {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='8' viewBox='0 0 10 8'><path fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' d='M1 4l3 3 5-6'/></svg>");
  background-repeat: no-repeat; background-position: center;
}
.mb-radio input:checked::after {
  content: ""; display: block; width: 6px; height: 6px; border-radius: 999px;
  background: #fff; margin: 3px auto;
}

/* switch */
.mb-switch {
  position: relative; display: inline-block;
  width: 36px; height: 20px; flex-shrink: 0;
}
.mb-switch input {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; margin: 0;
}
.mb-switch__track {
  position: absolute; inset: 0;
  background: var(--s3); border-radius: 999px;
  transition: var(--tr);
}
.mb-switch__track::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; border-radius: 999px;
  background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.2);
  transition: var(--tr);
}
.mb-switch input:checked ~ .mb-switch__track { background: var(--np); }
.mb-switch input:checked ~ .mb-switch__track::after { transform: translateX(16px); }

/* field row — 2 columns */
.mb-field-row {
  display: grid; gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.mb-field-row--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 640px) {
  .mb-field-row, .mb-field-row--3 { grid-template-columns: 1fr; }
}

/* ══ PILLS / BADGES ═══════════════════════════════════════════════ */
.mb-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 9px; border-radius: 999px;
  background: var(--s2); color: var(--t2);
  font-size: 11.5px; font-weight: 500; letter-spacing: 0.1px;
  white-space: nowrap;
}
.mb-pill::before {
  content: ""; width: 5px; height: 5px; border-radius: 999px; background: var(--t3);
}
.mb-pill--ok         { background: rgba(29,217,122,.12); color: var(--ng); }
.mb-pill--ok::before { background: var(--ng); }
.mb-pill--info       { background: rgba(59,158,255,.12); color: var(--nb); }
.mb-pill--info::before { background: var(--nb); }
.mb-pill--warn       { background: rgba(212,148,58,.15); color: var(--na); }
.mb-pill--warn::before { background: var(--na); }
.mb-pill--active     { background: rgba(212,148,58,.15); color: var(--na); }
.mb-pill--active::before { background: var(--na); }
.mb-pill--danger     { background: rgba(224,82,82,.12); color: #e05252; }
.mb-pill--danger::before { background: #e05252; }
.mb-pill--pending    { background: var(--s2); color: var(--t3); }
.mb-pill--plain::before { display: none; }

/* ══ SEGMENTED CONTROL ════════════════════════════════════════════ */
.mb-seg {
  display: inline-flex; gap: 4px; padding: 3px;
  background: var(--s2); border-radius: 7px;
}
.mb-seg__btn {
  padding: 4px 10px; border: 0; background: transparent;
  color: var(--t3); font: inherit; font-size: 12px; cursor: pointer;
  border-radius: 5px;
  transition: var(--tr);
}
.mb-seg__btn:hover { color: var(--t2); }
.mb-seg__btn.is-active {
  background: var(--s1); color: var(--t1);
  box-shadow: 0 1px 2px rgba(0,0,0,.05); font-weight: 500;
}

/* ══ MODAL ════════════════════════════════════════════════════════ */
.mb-modal-bg {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px);
  display: grid; place-items: center;
  padding: 20px;
  animation: mb-fade-in .18s ease;
}
@keyframes mb-fade-in { from { opacity: 0; } to { opacity: 1; } }

.mb-modal {
  width: 100%; max-width: 480px;
  background: var(--s1);
  border: 1px solid var(--b1);
  border-radius: var(--r3);
  box-shadow: var(--sh);
  display: flex; flex-direction: column;
  max-height: calc(100vh - 40px);
  overflow: hidden;
  animation: mb-modal-in .22s cubic-bezier(.4,0,.2,1);
}
@keyframes mb-modal-in {
  from { opacity: 0; transform: translateY(8px) scale(.98); }
  to   { opacity: 1; transform: translateY(0)   scale(1); }
}

.mb-modal--sm { max-width: 360px; }
.mb-modal--md { max-width: 480px; }
.mb-modal--lg { max-width: 720px; }
.mb-modal--xl { max-width: 1040px; }
.mb-modal--full {
  max-width: none; width: 100%; height: 100%; max-height: 100vh;
  border-radius: 0;
}

.mb-modal__hd {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--b1);
}
.mb-modal__title {
  font-size: 15px; font-weight: 600; color: var(--t1);
  letter-spacing: -0.2px; margin: 0;
  flex: 1; min-width: 0;
}
.mb-modal__close {
  width: 28px; height: 28px; border-radius: var(--r);
  border: 0; background: transparent; color: var(--t3);
  display: grid; place-items: center; cursor: pointer;
  flex-shrink: 0;
}
.mb-modal__close:hover { background: var(--s2); color: var(--t1); }

.mb-modal__bd {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
  color: var(--t1); font-size: 13px; line-height: 1.55;
}
.mb-modal__bd > * + * { margin-top: 14px; }

.mb-modal__ft {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--b1);
  background: var(--s2);
}
.mb-modal__ft-spacer { flex: 1; }

@media (max-width: 640px) {
  .mb-modal-bg { padding: 0; align-items: flex-end; }
  .mb-modal {
    max-width: none; width: 100%;
    border-radius: var(--r3) var(--r3) 0 0;
    max-height: 92vh;
    animation: mb-sheet-in .25s cubic-bezier(.4,0,.2,1);
  }
  .mb-modal--full { border-radius: 0; max-height: 100vh; }
}
@keyframes mb-sheet-in {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

/* ══ TOAST ═══════════════════════════════════════════════════════ */
.mb-toasts {
  position: fixed; top: 16px; right: 16px; z-index: 200;
  display: flex; flex-direction: column; gap: 8px;
  pointer-events: none;
  max-width: calc(100vw - 32px);
}
.mb-toast {
  pointer-events: auto;
  display: flex; align-items: flex-start; gap: 10px;
  min-width: 280px; max-width: 380px;
  padding: 12px 14px;
  background: var(--s1); color: var(--t1);
  border: 1px solid var(--b1); border-left: 3px solid var(--t3);
  border-radius: var(--r2);
  box-shadow: var(--sh);
  font-size: 13px; line-height: 1.4;
  animation: mb-toast-in .22s cubic-bezier(.4,0,.2,1);
}
@keyframes mb-toast-in {
  from { opacity: 0; transform: translateX(16px); }
  to   { opacity: 1; transform: translateX(0); }
}
.mb-toast--success { border-left-color: var(--ng); }
.mb-toast--info    { border-left-color: var(--nb); }
.mb-toast--warn    { border-left-color: var(--na); }
.mb-toast--error   { border-left-color: #e05252; }

.mb-toast__icon { flex-shrink: 0; margin-top: 1px; color: var(--t3); }
.mb-toast--success .mb-toast__icon { color: var(--ng); }
.mb-toast--info    .mb-toast__icon { color: var(--nb); }
.mb-toast--warn    .mb-toast__icon { color: var(--na); }
.mb-toast--error   .mb-toast__icon { color: #e05252; }

.mb-toast__body { flex: 1; min-width: 0; }
.mb-toast__title { font-weight: 600; font-size: 13px; }
.mb-toast__msg   { color: var(--t3); font-size: 12px; margin-top: 2px; }
.mb-toast__close {
  background: transparent; border: 0; cursor: pointer;
  color: var(--t3); padding: 0; margin-left: 4px;
  flex-shrink: 0;
}
.mb-toast__close:hover { color: var(--t1); }

@media (max-width: 640px) {
  .mb-toasts { left: 16px; right: 16px; top: auto; bottom: 16px; }
  .mb-toast { min-width: 0; max-width: none; width: 100%; }
}

/* ══ EMPTY STATE ═════════════════════════════════════════════════ */
.mb-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px;
  padding: 48px 24px;
  text-align: center;
  color: var(--t3);
}
.mb-empty__icon {
  width: 56px; height: 56px; border-radius: var(--r3);
  background: var(--s2); color: var(--t3);
  display: grid; place-items: center;
  margin-bottom: 4px;
}
.mb-empty__title {
  font-size: 15px; font-weight: 600; color: var(--t1); letter-spacing: -0.2px;
  margin: 0;
}
.mb-empty__msg {
  font-size: 13px; color: var(--t3); line-height: 1.55; max-width: 360px;
  margin: 0;
}
.mb-empty__actions { display: flex; gap: 8px; margin-top: 6px; }

/* ══ SKELETON ════════════════════════════════════════════════════ */
.mb-skeleton {
  display: block;
  background: linear-gradient(90deg, var(--s2) 0%, var(--s3) 50%, var(--s2) 100%);
  background-size: 200% 100%;
  animation: mb-shimmer 1.4s ease-in-out infinite;
  border-radius: var(--r);
}
@keyframes mb-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.mb-skeleton--text  { height: 12px; border-radius: 4px; }
.mb-skeleton--title { height: 18px; border-radius: 4px; }
.mb-skeleton--line  { height: 10px; border-radius: 4px; }
.mb-skeleton--block { height: 64px; }
.mb-skeleton--avatar { width: 36px; height: 36px; border-radius: 999px; }
.mb-skeleton--circle { border-radius: 999px; }

.mb-skeleton-group { display: flex; flex-direction: column; gap: 8px; }

/* ══ PAYWALL / FEATURE-GATE ═════════════════════════════════════ */
.mb-paywall {
  position: relative;
  border: 1px solid var(--b1);
  border-radius: var(--r2);
  background: var(--s1);
  overflow: hidden;
}
.mb-paywall__content {
  filter: blur(4px) saturate(.7);
  opacity: 0.5;
  pointer-events: none;
  user-select: none;
}
.mb-paywall__overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px;
  padding: 24px;
  text-align: center;
  background: linear-gradient(180deg, transparent 0%, var(--s1) 60%);
}
.mb-paywall__lock {
  width: 40px; height: 40px; border-radius: 999px;
  background: var(--np); color: #fff;
  display: grid; place-items: center;
  box-shadow: 0 4px 12px rgba(200,149,90,.3);
}
.mb-paywall__title {
  font-size: 14px; font-weight: 600; color: var(--t1); margin: 0;
}
.mb-paywall__msg {
  font-size: 12.5px; color: var(--t3); margin: 0; max-width: 320px; line-height: 1.5;
}

/* ══ THEME TOGGLE (3-segment Auto/Hell/Dunkel) ═════════════════ */
.mb-theme-toggle {
  display: inline-flex; gap: 2px; padding: 2px;
  background: var(--s2);
  border: 1px solid var(--b1);
  border-radius: 7px;
}
.mb-theme-toggle__btn {
  width: 30px; height: 26px;
  display: grid; place-items: center;
  background: transparent; border: 0; cursor: pointer;
  color: var(--t3);
  border-radius: 5px;
  transition: var(--tr);
}
.mb-theme-toggle__btn:hover { color: var(--t1); }
.mb-theme-toggle__btn.is-active {
  background: var(--s1); color: var(--t1);
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
}

/* ══ UTILS ═══════════════════════════════════════════════════════ */
.mb-mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.mb-sr   { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ══ CARD ═══════════════════════════════════════════════════════ */
.mb-card {
  background: var(--s1);
  border: 1px solid var(--b1);
  border-radius: var(--r2);
  overflow: hidden;
}
.mb-card__hd {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--b1);
}
.mb-card__title {
  font-size: 13.5px; font-weight: 600; color: var(--t1); margin: 0;
  letter-spacing: -0.2px;
}
.mb-card__meta { font-size: 12px; color: var(--t3); }
.mb-card__bd { padding: 16px; }
.mb-card__ft {
  padding: 12px 16px;
  border-top: 1px solid var(--b1);
  background: var(--s2);
  font-size: 12px; color: var(--t3);
}

/* ══ TAB ═════════════════════════════════════════════════════════ */
.mb-tabs {
  display: flex; gap: 2px;
  border-bottom: 1px solid var(--b1);
  overflow-x: auto;
  scrollbar-width: none;
}
.mb-tabs::-webkit-scrollbar { display: none; }
.mb-tab {
  padding: 10px 14px;
  background: transparent; border: 0;
  color: var(--t3); cursor: pointer;
  font: inherit; font-size: 13px; font-weight: 500;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--tr);
  white-space: nowrap;
  display: inline-flex; align-items: center; gap: 6px;
}
.mb-tab:hover { color: var(--t2); }
.mb-tab.is-active {
  color: var(--t1);
  border-bottom-color: var(--np);
}
.mb-tab__count {
  font-size: 10.5px; font-variant-numeric: tabular-nums;
  padding: 0 6px; border-radius: 999px;
  background: var(--s3); color: var(--t3);
  line-height: 18px; min-width: 18px; text-align: center;
}
.mb-tab.is-active .mb-tab__count { background: var(--np); color: #fff; }