/* ===== Material Design 3 Design System ===== */

/* --- Color Tokens (Light) --- */
:root {
  --md-primary: #6750A4;
  --md-on-primary: #FFFFFF;
  --md-primary-container: #EADDFF;
  --md-on-primary-container: #21005D;
  --md-secondary: #625B71;
  --md-on-secondary: #FFFFFF;
  --md-secondary-container: #E8DEF8;
  --md-on-secondary-container: #1D192B;
  --md-tertiary: #7D5260;
  --md-on-tertiary: #FFFFFF;
  --md-tertiary-container: #FFD8E4;
  --md-on-tertiary-container: #31111D;
  --md-error: #B3261E;
  --md-on-error: #FFFFFF;
  --md-error-container: #F9DEDC;
  --md-on-error-container: #410E0B;
  --md-background: #FEF7FF;
  --md-on-background: #1D1B20;
  --md-surface: #FEF7FF;
  --md-on-surface: #1D1B20;
  --md-surface-variant: #E7E0EC;
  --md-on-surface-variant: #49454F;
  --md-surface-container-lowest: #FFFFFF;
  --md-surface-container-low: #F7F2FA;
  --md-surface-container: #F3EDF7;
  --md-surface-container-high: #ECE6F0;
  --md-surface-container-highest: #E6E0E9;
  --md-outline: #79747E;
  --md-outline-variant: #CAC4D0;
  --md-inverse-surface: #322F35;
  --md-inverse-on-surface: #F5EFF7;
  --md-inverse-primary: #D0BCFF;
  --md-success: #2E7D32;
  --md-success-container: #C8E6C9;
  --md-on-success-container: #00390A;
  --md-warning: #F57C00;
  --md-warning-container: #FFE0B2;
  --md-on-warning-container: #432C00;
  --md-scrim: #000000;
  --md-shadow: rgba(0,0,0,0.15);

  /* Shape Tokens */
  --md-shape-xs: 4px;
  --md-shape-sm: 8px;
  --md-shape-md: 12px;
  --md-shape-lg: 16px;
  --md-shape-xl: 28px;
  --md-shape-full: 999px;

  /* Motion */
  --md-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-duration-short: 150ms;
  --md-duration-medium: 250ms;
  --md-duration-long: 400ms;

  /* Elevation */
  --md-elev-1: 0 1px 2px rgba(0,0,0,0.1), 0 1px 3px rgba(0,0,0,0.08);
  --md-elev-2: 0 1px 2px rgba(0,0,0,0.1), 0 2px 6px rgba(0,0,0,0.10);
  --md-elev-3: 0 1px 3px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.10);
  --md-elev-4: 0 2px 3px rgba(0,0,0,0.12), 0 6px 10px rgba(0,0,0,0.12);
  --md-elev-5: 0 4px 4px rgba(0,0,0,0.12), 0 8px 12px rgba(0,0,0,0.14);

  /* Layout */
  --md-nav-rail-width: 80px;
  --md-nav-rail-extended-width: 200px;
  --md-topbar-height: 64px;
  --md-bottom-nav-height: 80px;
}

/* --- Color Tokens (Dark) --- */
[data-theme="dark"] {
  --md-primary: #D0BCFF;
  --md-on-primary: #381E72;
  --md-primary-container: #4F378B;
  --md-on-primary-container: #EADDFF;
  --md-secondary: #CCC2DC;
  --md-on-secondary: #332D41;
  --md-secondary-container: #4A4458;
  --md-on-secondary-container: #E8DEF8;
  --md-tertiary: #EFB8C8;
  --md-on-tertiary: #492532;
  --md-tertiary-container: #633B48;
  --md-on-tertiary-container: #FFD8E4;
  --md-error: #F2B8B5;
  --md-on-error: #601410;
  --md-error-container: #8C1D18;
  --md-on-error-container: #F9DEDC;
  --md-background: #141218;
  --md-on-background: #E6E0E9;
  --md-surface: #141218;
  --md-on-surface: #E6E0E9;
  --md-surface-variant: #49454F;
  --md-on-surface-variant: #CAC4D0;
  --md-surface-container-lowest: #0F0D13;
  --md-surface-container-low: #1D1B20;
  --md-surface-container: #211F26;
  --md-surface-container-high: #2B2930;
  --md-surface-container-highest: #36343B;
  --md-outline: #938F99;
  --md-outline-variant: #49454F;
  --md-inverse-surface: #E6E0E9;
  --md-inverse-on-surface: #322F35;
  --md-inverse-primary: #6750A4;
  --md-success: #81C784;
  --md-success-container: #1B5E20;
  --md-on-success-container: #C8E6C9;
  --md-warning: #FFB74D;
  --md-warning-container: #E65100;
  --md-on-warning-container: #FFE0B2;
  --md-scrim: #000000;
  --md-shadow: rgba(0,0,0,0.35);
}

/* ===== Base Reset ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  background: var(--md-background);
  color: var(--md-on-background);
  font-family: 'Roboto', -apple-system, 'PingFang SC', 'Helvetica Neue', sans-serif;
  transition: background var(--md-duration-medium) var(--md-easing-standard),
              color var(--md-duration-medium) var(--md-easing-standard);
  overflow-x: hidden;
}

/* ===== App Layout ===== */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.app-content {
  flex: 1;
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* ===== Navigation Rail (Desktop) ===== */
.nav-rail {
  width: var(--md-nav-rail-width);
  background: var(--md-surface-container);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 0;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
  flex-shrink: 0;
  border-right: 1px solid var(--md-outline-variant);
  z-index: 100;
  transition: background var(--md-duration-medium) var(--md-easing-standard),
              border-color var(--md-duration-medium) var(--md-easing-standard);
}

.nav-rail .nav-brand {
  width: 48px;
  height: 48px;
  border-radius: var(--md-shape-md);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  flex-shrink: 0;
}

.nav-rail-item {
  width: 56px;
  padding: 8px 0;
  border-radius: var(--md-shape-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  color: var(--md-on-surface-variant);
  text-decoration: none;
  transition: background var(--md-duration-short) var(--md-easing-standard),
              color var(--md-duration-short) var(--md-easing-standard);
  position: relative;
  border: none;
  background: transparent;
  font-family: inherit;
}

.nav-rail-item:hover {
  background: var(--md-surface-container-high);
}

.nav-rail-item.active {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.nav-rail-item .nav-icon {
  font-size: 1.5rem;
  line-height: 1;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-rail-item .nav-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.nav-rail-spacer { flex: 1; }

/* ===== Bottom Navigation (Mobile) ===== */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--md-bottom-nav-height);
  background: var(--md-surface-container);
  border-top: 1px solid var(--md-outline-variant);
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.bottom-nav-items {
  display: flex;
  height: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  color: var(--md-on-surface-variant);
  text-decoration: none;
  border: none;
  background: transparent;
  font-family: inherit;
  transition: color var(--md-duration-short) var(--md-easing-standard);
  position: relative;
  padding: 8px 0;
}

.bottom-nav-item.active {
  color: var(--md-on-surface);
}

.bottom-nav-item .nav-icon-pill {
  width: 64px;
  height: 32px;
  border-radius: var(--md-shape-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  transition: background var(--md-duration-short) var(--md-easing-standard);
}

.bottom-nav-item.active .nav-icon-pill {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.bottom-nav-item .nav-label {
  font-size: 0.7rem;
  font-weight: 500;
}

/* Mobile bottom padding for content */
@media (max-width: 840px) {
  .nav-rail { display: none; }
  .bottom-nav { display: block; }
  .app-content { padding: 16px 16px calc(var(--md-bottom-nav-height) + 24px); }
}

/* ===== Top App Bar ===== */
.topbar {
  height: var(--md-topbar-height);
  background: var(--md-surface);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: border-color var(--md-duration-short);
}

.topbar.scrolled {
  border-color: var(--md-outline-variant);
  background: var(--md-surface-container);
}

.topbar-title {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--md-on-surface);
  flex: 1;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ===== Buttons ===== */
.md-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 24px;
  height: 40px;
  border-radius: var(--md-shape-full);
  border: none;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: box-shadow var(--md-duration-short) var(--md-easing-standard),
              background var(--md-duration-short) var(--md-easing-standard);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  white-space: nowrap;
  outline: none;
}

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

.md-btn-tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}
.md-btn-tonal:hover { box-shadow: var(--md-elev-1); }

.md-btn-outlined {
  background: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline);
}
.md-btn-outlined:hover { background: var(--md-primary-container); color: var(--md-on-primary-container); }

.md-btn-text {
  background: transparent;
  color: var(--md-primary);
  padding: 0 12px;
}
.md-btn-text:hover { background: var(--md-primary-container); color: var(--md-on-primary-container); }

.md-btn-elevated {
  background: var(--md-surface-container-low);
  color: var(--md-primary);
  box-shadow: var(--md-elev-1);
}
.md-btn-elevated:hover { box-shadow: var(--md-elev-2); }

/* Icon Button */
.md-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  transition: background var(--md-duration-short) var(--md-easing-standard);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.md-icon-btn:hover { background: var(--md-surface-container-high); }
.md-icon-btn:active { background: var(--md-surface-container-highest); }

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

/* FAB */
.md-fab {
  width: 56px;
  height: 56px;
  border-radius: var(--md-shape-lg);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--md-elev-3);
  transition: box-shadow var(--md-duration-short) var(--md-easing-standard);
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 80;
  overflow: hidden;
}

.md-fab:hover { box-shadow: var(--md-elev-4); }
.md-fab:active { box-shadow: var(--md-elev-1); transform: scale(0.96); }

@media (max-width: 840px) {
  .md-fab { bottom: calc(var(--md-bottom-nav-height) + 16px); }
}

/* ===== Cards ===== */
.md-card {
  background: var(--md-surface-container);
  border-radius: var(--md-shape-xl);
  padding: 24px;
  box-shadow: var(--md-elev-1);
  transition: box-shadow var(--md-duration-short) var(--md-easing-standard),
              transform var(--md-duration-short) var(--md-easing-standard);
  position: relative;
  overflow: hidden;
}

.md-card-elevated {
  background: var(--md-surface-container-low);
  box-shadow: var(--md-elev-1);
}

.md-card-filled {
  background: var(--md-surface-container-highest);
  box-shadow: none;
}

.md-card-outlined {
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
  box-shadow: none;
}

.md-card:hover {
  box-shadow: var(--md-elev-2);
}

.md-card.clickable {
  cursor: pointer;
}

.md-card.clickable:hover {
  transform: translateY(-2px);
  box-shadow: var(--md-elev-3);
}

.md-card.clickable:active {
  transform: translateY(0);
}

/* ===== Chips ===== */
.md-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  height: 32px;
  border-radius: var(--md-shape-sm);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-low);
  color: var(--md-on-surface-variant);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--md-duration-short) var(--md-easing-standard);
}

.md-chip:hover { background: var(--md-surface-container-high); }
.md-chip.selected {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border-color: transparent;
}

/* ===== Text Fields ===== */
.md-text-field {
  position: relative;
  width: 100%;
}

.md-text-field input,
.md-text-field textarea,
.md-text-field select {
  width: 100%;
  padding: 16px;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-sm);
  background: var(--md-surface-container-lowest);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color var(--md-duration-short), box-shadow var(--md-duration-short);
}

.md-text-field input:focus,
.md-text-field textarea:focus,
.md-text-field select:focus {
  border-color: var(--md-primary);
  border-width: 2px;
  padding: 15px;
  box-shadow: none;
}

.md-text-field textarea {
  resize: vertical;
  min-height: 80px;
  font-family: inherit;
}

.md-text-field input::placeholder,
.md-text-field textarea::placeholder {
  color: var(--md-on-surface-variant);
  opacity: 0.7;
}

/* ===== Dialog (Modal) ===== */
.md-scrim {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 999;
  display: none;
  opacity: 0;
  transition: opacity var(--md-duration-medium) var(--md-easing-standard);
}

.md-scrim.active {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
}

.md-dialog {
  background: var(--md-surface-container-high);
  border-radius: var(--md-shape-xl);
  padding: 24px;
  max-width: 440px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--md-elev-3);
  transform: scale(0.9);
  opacity: 0;
  transition: transform var(--md-duration-medium) var(--md-easing-emphasized),
              opacity var(--md-duration-medium) var(--md-easing-standard);
}

.md-scrim.active .md-dialog {
  transform: scale(1);
  opacity: 1;
}

.md-dialog-title {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--md-on-surface);
  margin-bottom: 16px;
}

.md-dialog-content {
  color: var(--md-on-surface-variant);
  line-height: 1.6;
  margin-bottom: 24px;
}

.md-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ===== List ===== */
.md-list {
  display: flex;
  flex-direction: column;
}

.md-list-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-radius: var(--md-elev-1);
  color: var(--md-on-surface);
  text-decoration: none;
  transition: background var(--md-duration-short) var(--md-easing-standard);
  cursor: pointer;
}

.md-list-item:hover {
  background: var(--md-surface-container-high);
}

.md-list-item .md-list-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.md-list-item .md-list-text {
  flex: 1;
  min-width: 0;
}

.md-list-item .md-list-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--md-on-surface);
}

.md-list-item .md-list-subtitle {
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
  margin-top: 2px;
}

/* ===== Progress Indicators ===== */
.md-progress-linear {
  width: 100%;
  height: 4px;
  background: var(--md-surface-container-highest);
  border-radius: var(--md-shape-full);
  overflow: hidden;
}

.md-progress-linear .bar {
  height: 100%;
  background: var(--md-primary);
  border-radius: var(--md-shape-full);
  transition: width var(--md-duration-long) var(--md-easing-standard);
}

.md-progress-circular {
  width: 36px;
  height: 36px;
  border: 3px solid var(--md-surface-container-highest);
  border-top-color: var(--md-primary);
  border-radius: 50%;
  animation: md-spin 0.8s linear infinite;
}

@keyframes md-spin {
  to { transform: rotate(360deg); }
}

/* ===== Badge ===== */
.md-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  border-radius: var(--md-shape-full);
  background: var(--md-error);
  color: var(--md-on-error);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0 5px;
}

/* ===== Snackbar ===== */
.md-snackbar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--md-inverse-surface);
  color: var(--md-inverse-on-surface);
  padding: 14px 16px;
  border-radius: var(--md-shape-xs);
  box-shadow: var(--md-elev-3);
  z-index: 1000;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 280px;
  max-width: 90vw;
  opacity: 0;
  transition: transform var(--md-duration-medium) var(--md-easing-emphasized),
              opacity var(--md-duration-medium) var(--md-easing-standard);
}

.md-snackbar.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

@media (max-width: 840px) {
  .md-snackbar { bottom: calc(var(--md-bottom-nav-height) + 16px); }
}

/* ===== Ripple Effect ===== */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.15;
  pointer-events: none;
  transform: scale(0);
  animation: md-ripple var(--md-duration-long) var(--md-easing-standard);
}

@keyframes md-ripple {
  to { transform: scale(3); opacity: 0; }
}

/* ===== State Layer ===== */
.md-btn-filled:hover::before,
.md-btn-tonal:hover::before,
.md-icon-btn:hover::before {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0.08;
  pointer-events: none;
}

/* ===== Typography ===== */
.md-headline-large { font-size: 2rem; font-weight: 500; line-height: 1.2; }
.md-headline-medium { font-size: 1.6rem; font-weight: 500; line-height: 1.3; }
.md-headline-small { font-size: 1.3rem; font-weight: 500; line-height: 1.4; }
.md-title-large { font-size: 1.1rem; font-weight: 500; }
.md-title-medium { font-size: 1rem; font-weight: 500; }
.md-body-large { font-size: 1rem; line-height: 1.5; }
.md-body-medium { font-size: 0.9rem; line-height: 1.5; }
.md-body-small { font-size: 0.8rem; line-height: 1.4; color: var(--md-on-surface-variant); }
.md-label-large { font-size: 0.9rem; font-weight: 500; letter-spacing: 0.02em; }
.md-label-small { font-size: 0.7rem; font-weight: 500; letter-spacing: 0.04em; }

/* ===== Grid System ===== */
.md-grid {
  display: grid;
  gap: 16px;
}

.md-grid-2 { grid-template-columns: repeat(2, 1fr); }
.md-grid-3 { grid-template-columns: repeat(3, 1fr); }
.md-grid-auto { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }

@media (max-width: 600px) {
  .md-grid-2, .md-grid-3 { grid-template-columns: 1fr; }
  .md-grid-auto { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
}

/* ===== Utility ===== */
.md-flex { display: flex; }
.md-flex-col { display: flex; flex-direction: column; }
.md-flex-center { display: flex; align-items: center; justify-content: center; }
.md-gap-sm { gap: 8px; }
.md-gap-md { gap: 16px; }
.md-gap-lg { gap: 24px; }
.md-mt-sm { margin-top: 8px; }
.md-mt-md { margin-top: 16px; }
.md-mt-lg { margin-top: 24px; }
.md-mb-sm { margin-bottom: 8px; }
.md-mb-md { margin-bottom: 16px; }
.md-mb-lg { margin-bottom: 24px; }
.md-text-center { text-align: center; }
.md-hidden { display: none !important; }
.md-w-full { width: 100%; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--md-outline-variant); border-radius: var(--md-shape-full); }
::-webkit-scrollbar-thumb:hover { background: var(--md-outline); }
/* ===== Material Icons + Badge Patch ===== */

/* Material Icons in nav-rail */
.nav-rail-item .material-icons {
  font-size: 1.5rem;
  margin-bottom: 2px;
  line-height: 1;
}
.nav-rail-item .nav-label { font-size: 0.65rem; }

/* Material Icons in bottom-nav */
.bottom-nav-item .nav-icon-pill .material-icons,
.bottom-nav-item .material-icons.nav-icon-pill {
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 16px;
  transition: background 0.2s;
}
.bottom-nav-item.active .material-icons.nav-icon-pill {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* User Badge Button - top right */
.md-badge-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 40px;
  min-width: 40px;
  padding: 0 16px;
  border-radius: 20px;
  border: 1px solid transparent;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  outline: none;
  user-select: none;
  background: var(--md-primary);
  color: var(--md-on-primary);
  border-color: var(--md-primary);
}
.md-badge-btn:hover {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: var(--md-primary-container);
}
.md-badge-btn .material-icons {
  font-size: 1.2rem;
  line-height: 1;
  flex-shrink: 0;
}
.md-badge-btn .material-icons.user-avatar {
  font-size: 1.1rem;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--md-on-primary);
  color: var(--md-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.md-badge-btn .login-text {
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1;
}
.md-badge-btn .user-name {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1;
}
.md-badge-btn.logged-in {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  border-color: var(--md-outline);
}
.md-badge-btn.logged-in:hover {
  background: var(--md-surface-container-highest);
  border-color: var(--md-on-surface-variant);
}
.md-badge-btn.logged-in .material-icons.user-avatar {
  background: transparent !important;
  color: var(--md-primary) !important;
  width: auto !important;
  height: auto !important;
  border-radius: 0 !important;
  font-size: 1.2rem !important;
}

/* Theme toggle icon */
.md-icon-btn .material-icons { font-size: 1.3rem; }

/* 封禁横幅样式 */
#banBanner {
  animation: ban-pulse 2s ease-in-out infinite;
}
@keyframes ban-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(244, 67, 54, 0.3); }
  50% { box-shadow: 0 0 0 4px rgba(244, 67, 54, 0); }
}

/* SD监控样式 */
#sdMonitor {
  background: var(--md-surface-container);
  border-radius: var(--md-shape-lg);
  padding: 16px;
  margin-bottom: 20px;
}

/* 封禁预设按钮激活状态 */
.ban-preset.active {
  background: var(--md-primary) !important;
  color: var(--md-on-primary) !important;
}

/* 文件操作小按钮 */
.file-item .md-icon-btn {
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.2s;
}
.file-item .md-icon-btn:hover {
  background: var(--md-surface-container-high);
}
.file-item .md-icon-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
/* ===== Badge Button - 独立完整样式（不依赖md-icon-btn）===== */
.md-badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  min-width: 40px;
  padding: 0 14px;
  border-radius: 20px;
  border: 1px solid var(--md-outline-variant);
  background: var(--md-primary);
  color: var(--md-on-primary);
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  outline: none;
  user-select: none;
}
.md-badge-btn:hover {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: var(--md-primary-container);
}
.md-badge-btn .material-icons {
  font-size: 1.2rem;
  line-height: 1;
}
.md-badge-btn .login-text {
  font-size: 0.82rem;
  font-weight: 500;
}
.md-badge-btn.not-logged-in {
  background: var(--md-primary);
  color: var(--md-on-primary);
  border-color: var(--md-primary);
}
.md-badge-btn.not-logged-in:hover {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: var(--md-primary-container);
}
.md-badge-btn.logged-in {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  border-color: var(--md-outline);
}
.md-badge-btn.logged-in:hover {
  background: var(--md-surface-container-highest);
  border-color: var(--md-on-surface-variant);
}
.md-badge-btn .user-name {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.85rem;
  font-weight: 500;
}
.md-badge-btn .user-avatar {
  font-size: 1.1rem !important;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--md-primary);
  color: var(--md-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 覆盖旧的双类选择器 */
.md-icon-btn.md-badge-btn {
  width: auto !important;
  min-width: 40px;
  border-radius: 20px !important;
  padding: 0 14px !important;
  gap: 6px;
  border: 1px solid var(--md-outline-variant);
  background: var(--md-primary) !important;
  color: var(--md-on-primary) !important;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

/* 封禁横幅 */
#banBanner { animation: ban-pulse 2s ease-in-out infinite; }
@keyframes ban-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(244,67,54,0.3); }
  50% { box-shadow: 0 0 0 4px rgba(244,67,54,0); }
}

/* SD监控 */
#sdMonitor {
  background: var(--md-surface-container);
  border-radius: var(--md-shape-lg);
  padding: 16px;
  margin-bottom: 20px;
}

/* 封禁预设 */
.ban-preset.active {
  background: var(--md-primary) !important;
  color: var(--md-on-primary) !important;
}

/* 文件操作小按钮 */
.file-item .md-icon-btn { border: none; background: transparent; cursor: pointer; display: flex; align-items: center; justify-content: center; border-radius: 50%; transition: background 0.2s; }
.file-item .md-icon-btn:hover { background: var(--md-surface-container-high); }
.file-item .md-icon-btn:disabled { opacity: 0.3; cursor: not-allowed; }