/*
 * birdwatch — Material 3 Expressive (Mono scheme), Twitter-style timeline
 *
 * Color roles: exact values from the brief (light + dark, high-contrast mono).
 * Shape: small radii across the scale (buttons 8–12, dialogs 12, FAB 16);
 * the timeline is boxless rows with hairline dividers, avatars round.
 * Type: Roboto Serif everywhere, emphasized (heavy) weights for headings,
 * button labels and tabs per M3 Expressive; compact mobile sizes.
 * Motion: expressive spring (linear() curve below) for view transitions,
 * live insertions and press feedback.
 */

/* ---------------------------------------------------------------- fonts */

@font-face {
  font-family: "Roboto Serif";
  src: url("roboto-serif-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Material Symbols Rounded";
  src: url("material-symbols-rounded.woff2") format("woff2");
  font-weight: 100 700;
  font-style: normal;
  font-display: block;
}

.msr {
  font-family: "Material Symbols Rounded";
  font-weight: normal;
  font-style: normal;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

.msr--fill { font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24; }
.msr--outline { font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24; }
.msr--inline { font-size: 14px; vertical-align: -2px; }

/* ---------------------------------------------------------------- tokens */

:root {
  /* Mono light scheme (from the brief; derived roles kept in family) */
  --md-sys-color-primary: #332D41;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #4A4459;
  --md-sys-color-on-primary-container: #FFFFFF;
  --md-sys-color-secondary: #332D41;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #48464D;
  --md-sys-color-on-secondary-container: #FFFFFF;
  --md-sys-color-tertiary: #524346;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #524346;
  --md-sys-color-on-tertiary-container: #FFFFFF;
  --md-sys-color-error: #B3261E;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #F9DEDC;
  --md-sys-color-on-error-container: #410E0B;
  --md-sys-color-background: #FAF8FE;
  --md-sys-color-on-background: #010003;
  --md-sys-color-surface: #FAF8FE;
  --md-sys-color-on-surface: #010003;
  --md-sys-color-surface-variant: #E3E2E7;
  --md-sys-color-on-surface-variant: #1D1A23;
  --md-sys-color-outline: #322F39;
  --md-sys-color-outline-variant: #322F39;
  --md-sys-color-surface-container-lowest: #FFFFFF;
  --md-sys-color-surface-container-low: #F4F3F8;
  --md-sys-color-surface-container: #EFEDF3;
  --md-sys-color-surface-container-high: #E9E7ED;
  --md-sys-color-surface-container-highest: #E3E2E7;
  --md-sys-color-inverse-surface: #313034;
  --md-sys-color-inverse-on-surface: #F2F0F5;
  --md-sys-color-inverse-primary: #CAC3DC;
  --md-sys-color-scrim: #000000;
  --md-sys-color-shadow: #000000;
  --md-sys-color-surface-dim: #DCD9E0;
  --md-sys-color-surface-bright: #FAF8FE;
  --md-sys-color-surface-tint: #4A4459;

  /* app-level tokens */
  --font-serif: "Roboto Serif", "Noto Serif JP", "Noto Serif CJK JP",
                "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-card: 8px;
  --radius-fab: 16px;
  --pad-screen: 16px;
  --appbar-h: 64px;
  --navbar-h: 80px;
  --elevation-3:
    0 1px 3px rgba(0, 0, 0, 0.16),
    0 4px 8px 3px rgba(0, 0, 0, 0.14),
    0 1px 3px 1px rgba(0, 0, 0, 0.12);
  --ease-spring: linear(0.0000, 0.0290, 0.1041, 0.2089, 0.3300, 0.4562,
    0.5794, 0.6934, 0.7945, 0.8803, 0.9503, 1.0046, 1.0444, 1.0713, 1.0872,
    1.0941, 1.0940, 1.0887, 1.0799, 1.0690, 1.0572, 1.0453, 1.0340, 1.0238,
    1.0150, 1.0076, 1.0000);
  --ease-spring-soft: linear(0.0000, 0.1041, 0.3300, 0.5794, 0.7945, 0.9503,
    1.0444, 1.0872, 1.0940, 1.0799, 1.0572, 1.0340, 1.0150, 1.0000);

  /* M3 type scale on the serif family */
  --md-sys-typescale-display-large-font: var(--font-serif);
  --md-sys-typescale-display-medium-font: var(--font-serif);
  --md-sys-typescale-display-small-font: var(--font-serif);
  --md-sys-typescale-headline-large-font: var(--font-serif);
  --md-sys-typescale-headline-medium-font: var(--font-serif);
  --md-sys-typescale-headline-small-font: var(--font-serif);
  --md-sys-typescale-title-large-font: var(--font-serif);
  --md-sys-typescale-title-medium-font: var(--font-serif);
  --md-sys-typescale-title-small-font: var(--font-serif);
  --md-sys-typescale-body-large-font: var(--font-serif);
  --md-sys-typescale-body-medium-font: var(--font-serif);
  --md-sys-typescale-body-small-font: var(--font-serif);
  --md-sys-typescale-label-large-font: var(--font-serif);
  --md-sys-typescale-label-medium-font: var(--font-serif);
  --md-sys-typescale-label-small-font: var(--font-serif);

  /* emphasized: heavier weights for headings, buttons, tabs */
  --md-sys-typescale-title-large-weight: 700;
  --md-sys-typescale-headline-large-weight: 700;
  --md-sys-typescale-headline-medium-weight: 700;
  --md-sys-typescale-headline-small-weight: 700;
  --md-sys-typescale-label-large-weight: 700;
  --md-sys-typescale-label-medium-weight: 700;
  --md-sys-typescale-label-small-weight: 700;

  /* small shape scale for md components */
  --md-filled-button-container-shape: 12px;
  --md-outlined-button-container-shape: 12px;
  --md-text-button-container-shape: 12px;
  --md-filled-tonal-button-container-shape: 12px;
  --md-fab-container-shape: 16px;
  --md-dialog-container-shape: 12px;
  --md-snackbar-container-shape: 8px;
  --md-outlined-text-field-container-shape: 8px;
  --md-navigation-bar-active-indicator-height: 32px;
  --md-navigation-bar-active-indicator-width: 64px;
  --md-navigation-bar-active-indicator-shape: 9999px;
  --md-navigation-bar-label-text-weight: 700;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Mono dark scheme */
    --md-sys-color-primary: #F3EEFE;
    --md-sys-color-on-primary: #010003;
    --md-sys-color-primary-container: #CAC3DC;
    --md-sys-color-on-primary-container: #010003;
    --md-sys-color-secondary: #F3EEFE;
    --md-sys-color-on-secondary: #010003;
    --md-sys-color-secondary-container: #C8C5CD;
    --md-sys-color-on-secondary-container: #010003;
    --md-sys-color-tertiary: #D4C2C6;
    --md-sys-color-on-tertiary: #020000;
    --md-sys-color-tertiary-container: #D4C2C6;
    --md-sys-color-on-tertiary-container: #020000;
    --md-sys-color-error: #F2B8B5;
    --md-sys-color-on-error: #601410;
    --md-sys-color-error-container: #8C1D18;
    --md-sys-color-on-error-container: #F9DEDC;
    --md-sys-color-background: #141317;
    --md-sys-color-on-background: #FFFFFF;
    --md-sys-color-surface: #141317;
    --md-sys-color-on-surface: #FFFFFF;
    --md-sys-color-surface-variant: #353438;
    --md-sys-color-on-surface-variant: #F3EFFC;
    --md-sys-color-outline: #E5E0EE;
    --md-sys-color-outline-variant: #E5E0EE;
    --md-sys-color-surface-container-lowest: #0F0E12;
    --md-sys-color-surface-container-low: #1C1B1F;
    --md-sys-color-surface-container: #201F23;
    --md-sys-color-surface-container-high: #2B292D;
    --md-sys-color-surface-container-highest: #353438;
    --md-sys-color-inverse-surface: #E3E2E7;
    --md-sys-color-inverse-on-surface: #313034;
    --md-sys-color-inverse-primary: #615B71;
    --md-sys-color-surface-dim: #141317;
    --md-sys-color-surface-bright: #3B393E;
    --md-sys-color-surface-tint: #CAC3DC;
  }
}

/* ---------------------------------------------------------------- base */

*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface);
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100dvh;
}

a { color: inherit; }
code {
  font-family: ui-monospace, monospace;
  font-size: 0.85em;
  word-break: break-all;
}

md-icon-button,
md-filled-button,
md-text-button,
md-outlined-button,
md-filled-tonal-button,
md-fab {
  font-family: var(--font-serif);
  --md-icon-button-icon-size: 24px;
}

/* ------------------------------------------------------------- app bar */

.app-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--appbar-h);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

/* scroll: surface → surfaceContainer (CSS scroll-driven; static fallback) */
@supports (animation-timeline: scroll()) {
  .app-bar {
    animation: appbar-fill linear both;
    animation-timeline: scroll(root);
    animation-range: 0 80px;
  }
  @keyframes appbar-fill {
    to {
      background: var(--md-sys-color-surface-container);
      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.10), 0 1px 3px 1px rgba(0, 0, 0, 0.06);
    }
  }
}

.app-bar__title {
  flex: 1;
  font-size: 20px;   /* titleLarge */
  font-weight: 700;  /* emphasized */
  letter-spacing: 0.15px;
  padding-left: 8px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-bar__button { --md-icon-button-icon-size: 24px; }

.app-bar__brand {
  display: flex;
  align-items: center;
  margin-left: 4px;
  border-radius: 9px; /* hit target stays friendly, art gets the rounding */
}

.app-bar__logo {
  display: block;
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

/* ------------------------------------------------------------- layout */

.content {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px var(--pad-screen) calc(var(--navbar-h) + 32px);
}

.page-title {
  font-size: 20px;
  font-weight: 700;
  margin: 4px 0 12px;
  line-height: 1.3;
}

.section-title {
  font-size: 16px;
  font-weight: 700;
  margin: 20px 0 8px;
  line-height: 1.3;
}

.section-title__count {
  font-size: 13px;
  font-weight: 400;
  color: var(--md-sys-color-on-surface-variant);
}

.page { display: block; }

/* ------------------------------------------------------------- timeline */

.feed { display: flex; flex-direction: column; }

/* One timeline row: avatar link + main block (header row + body). No box —
   rows are separated by hairline dividers, Twitter-style. */
.tl-item {
  display: flex;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--md-sys-color-surface-container-highest);
}

.feed .tl-item:last-child { border-bottom: 0; }

.tl-item__avatar { flex: 0 0 auto; }

.tl-item__main {
  flex: 1;
  min-width: 0;
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform 0.3s var(--ease-spring);
}

.tl-item__main:active { transform: scale(0.99); }

.tl-item__head {
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
}

.tl-item__name {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--md-sys-color-on-surface);
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tl-item__name--sm { font-size: 14px; }

.tl-item__time {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.3;
  white-space: nowrap;
}

.tl-item__time::before { content: "·"; margin-right: 5px; }

.tl-item__body {
  display: block;
  margin-top: 2px;
  font-size: 15px;
  line-height: 1.45;
  color: var(--md-sys-color-on-surface);
  overflow-wrap: break-word;
}

.note-url {
  color: var(--md-sys-color-inverse-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  overflow-wrap: anywhere;
}

/* detail: roomier body, no divider under the focused note */
.tl-item--detail { border-bottom: 0; padding: 16px 0 8px; }
.tl-item__body--detail { font-size: 17px; line-height: 1.5; margin-top: 6px; }

/* comments under the detail */
.tl-item--comment { border-bottom: 0; padding: 10px 0; }
.tl-item--comment .tl-item__body { font-size: 15px; }

.comments {
  display: flex;
  flex-direction: column;
  margin-top: 4px;
}

.comments .tl-item + .tl-item {
  border-top: 1px solid var(--md-sys-color-surface-container-highest);
}

/* avatars: kind-0 picture in a circle, account_circle fallback */
.avatar {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface-variant);
}

.avatar img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar .avatar__fallback { display: none; }
.avatar:not(:has(img)) .avatar__fallback,
.avatar--fallback .avatar__fallback { display: inline-block; }
.avatar--fallback img { display: none; }

.avatar--sm { width: 36px; height: 36px; }
.avatar--sm .avatar__fallback { font-size: 32px; }
.avatar--md { width: 40px; height: 40px; }
.avatar--md .avatar__fallback { font-size: 36px; }
.avatar--lg { width: 44px; height: 44px; }
.avatar--lg .avatar__fallback { font-size: 40px; }
.avatar--xl { width: 64px; height: 64px; }
.avatar--xl .avatar__fallback { font-size: 56px; }

/* row entering live from SSE */
.tl-item--enter {
  animation: tl-in 0.45s var(--ease-spring) both;
}

@keyframes tl-in {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
}

/* --------------------------------------------------------- note actions */

.thread-section { margin-top: 8px; }

.note-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 40px;
}

.note-actions__form { display: inline-flex; }

.like-button .msr { font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24; }

.like-button--liked .msr {
  font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24;
  color: var(--md-sys-color-primary);
}

.note-actions__count {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  margin-right: 8px;
}

.fav-toggle {
  border: 0;
  background: none;
  padding: 8px;
  cursor: pointer;
  color: var(--md-sys-color-on-surface-variant);
  border-radius: 50%;
  transition: transform 0.25s var(--ease-spring);
}

.fav-toggle:active { transform: scale(0.88); }
.fav-toggle[data-fav="1"] .msr {
  font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24;
  color: var(--md-sys-color-tertiary);
}

.note-actions__form--end { margin-left: auto; }

.danger-button {
  --md-text-button-label-text-color: var(--md-sys-color-error);
  --md-text-button-icon-color: var(--md-sys-color-error);
  --md-text-button-hover-label-text-color: var(--md-sys-color-error);
  --md-text-button-hover-state-layer-color: var(--md-sys-color-error);
}

.reply-box {
  margin: 8px 0 4px;
  background: var(--md-sys-color-surface);
  border-radius: var(--radius-card);
  padding: 12px;
}

.reply-form { display: flex; flex-direction: column; gap: 8px; }

.reply-form__submit { align-self: flex-end; }

.compose-textarea {
  width: 100%;
  border: 0;
  resize: vertical;
  background: transparent;
  color: var(--md-sys-color-on-surface);
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.5;
  outline: none;
}

.compose-textarea--compact { font-size: 16px; }

/* ------------------------------------------------------------ FAB / nav */

.compose-fab {
  position: fixed;
  right: 16px;
  bottom: calc(var(--navbar-h) + 16px);
  z-index: 30;
  box-shadow: var(--elevation-3); /* level 3 */
  transition: transform 0.3s var(--ease-spring);
}

.compose-fab:active { transform: scale(0.94); }

.nav-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  background: var(--md-sys-color-surface-container); /* per sketch */
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.nav-bar md-navigation-bar {
  --md-navigation-bar-height: 80px;
  --md-navigation-bar-container-color: var(--md-sys-color-surface-container);
}

/* --------------------------------------------------------------- pages */

.add-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.add-form {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.add-form__input,
.search-input,
.field__input {
  flex: 1;
  min-width: 0;
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--md-sys-color-on-surface);
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-sm);
  padding: 12px;
  outline: none;
  transition: border-color 0.2s ease;
}

.add-form__input:focus,
.search-input:focus,
.field__input:focus { border-color: var(--md-sys-color-primary); }

.search-form {
  display: flex;
  gap: 8px;
  align-items: stretch;
  margin-bottom: 16px;
}

.search-form md-filled-button { align-self: stretch; }

/* rows: follows / search profiles */
.follow-list,
.profile-list,
.relay-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.profile-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  min-width: 0;
  flex: 1;
}

.profile-row__avatar { font-size: 36px; color: var(--md-sys-color-on-surface-variant); }

.profile-row__body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.profile-row__name {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-row__sub {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.follow-row {
  display: flex;
  align-items: center;
  background: var(--md-sys-color-surface);
  border-radius: var(--radius-card);
  padding: 4px 8px 4px 4px;
}

.unfollow-button {
  --md-icon-button-icon-color: var(--md-sys-color-error);
}

.relay-row {
  position: relative;
  background: var(--md-sys-color-surface);
  border-radius: var(--radius-card);
  padding: 12px 44px 12px 16px;
}

.relay-row__head {
  display: flex;
  align-items: center;
  gap: 8px;
}

.relay-row__url {
  font-size: 15px;
  font-weight: 700;
  min-width: 0;
  overflow-wrap: anywhere;
}

.state-badge {
  margin-left: auto;
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface-variant);
}

.state-badge--connected {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.relay-flags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin-top: 8px;
  align-items: center;
}

.relay-flag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
}

.relay-flag input { accent-color: var(--md-sys-color-primary); }

.relay-remove {
  position: absolute;
  top: 8px;
  right: 4px;
  --md-icon-button-icon-color: var(--md-sys-color-error);
}

.advertise-button { align-self: flex-start; }

/* ------------------------------------------------------------- profile */

.profile-header {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--md-sys-color-surface);
  border-radius: var(--radius-card);
  padding: 16px;
}

.profile-header__body { min-width: 0; flex: 1; }

.profile-header__name {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.profile-header__sub {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
}

.profile-header__nip05 { display: flex; align-items: center; gap: 4px; }

.profile-about {
  margin: 8px 4px 0;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 15px;
  line-height: 1.5;
}

.follow-button,
.following-button {
  border: 0;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  transition: transform 0.3s var(--ease-spring);
}

.following-button {
  background: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface);
}

.follow-button:active,
.following-button:active { transform: scale(0.95); }

/* ------------------------------------------------------------ settings */

.settings-card {
  background: var(--md-sys-color-surface);
  border-radius: var(--radius-card);
  padding: 16px;
  margin-bottom: 16px;
}

.settings-card__title {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 12px;
}

.settings-card__body {
  margin: 8px 0;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 14px;
  line-height: 1.5;
}

.settings-card__body--muted { font-size: 12px; }

.settings-row {
  display: flex;
  gap: 12px;
  padding: 6px 0;
  align-items: baseline;
}

.settings-row__label {
  flex: 0 0 88px;
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
}

.settings-row__value { min-width: 0; overflow-wrap: anywhere; }

.settings-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
}

.field__label {
  font-size: 12px;
  font-weight: 700;
  color: var(--md-sys-color-on-surface-variant);
}

/* --------------------------------------------------------- empty state */

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--md-sys-color-on-surface-variant);
}

.empty-state--page { padding-top: 72px; }
.empty-state--compact { padding: 24px; }

.empty-state__icon { font-size: 40px; opacity: 0.7; }

.empty-state__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  margin: 12px 0 4px;
}

.empty-state__body {
  font-size: 13px;
  line-height: 1.5;
  margin: 0 0 16px;
}

.empty-state md-filled-button { margin: 0 auto; }

/* ---------------------------------------------------------- flash/toast */

.flash { display: none; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--navbar-h) + 16px);
  transform: translate(-50%, 16px);
  z-index: 60;
  max-width: min(420px, calc(100vw - 32px));
  background: var(--md-sys-color-inverse-surface);
  color: var(--md-sys-color-inverse-on-surface);
  border-radius: var(--radius-sm);
  box-shadow: var(--elevation-3);
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.4;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.35s var(--ease-spring);
}

.toast--show {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

/* --------------------------------------------------------------- dialog */

.compose-dialog,
.confirm-dialog {
  --md-dialog-container-shape: var(--radius-md);
}

.compose-dialog md-dialog,
.confirm-dialog md-dialog { max-width: 400px; }

.confirm-dialog__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
}

/* ---------------------------------------------------- view transitions */

@view-transition {
  navigation: auto;
}

::view-transition-group(root) {
  animation-duration: 0.45s;
  animation-timing-function: var(--ease-spring);
}

::view-transition-old(root) {
  animation: 0.3s var(--ease-spring-soft) both vt-out;
}

::view-transition-new(root) {
  animation: 0.45s var(--ease-spring) both vt-in;
}

@keyframes vt-out {
  to {
    opacity: 0;
    transform: translateY(-10px) scale(0.99);
  }
}

@keyframes vt-in {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.99);
  }
}

/* back = the forward transition played in reverse */
html:active-view-transition-type(back)::view-transition-old(root) {
  animation: 0.3s var(--ease-spring-soft) both vt-out-back;
}

html:active-view-transition-type(back)::view-transition-new(root) {
  animation: 0.45s var(--ease-spring) both vt-in-back;
}

@keyframes vt-out-back {
  to {
    opacity: 0;
    transform: translateY(10px) scale(0.99);
  }
}

@keyframes vt-in-back {
  from {
    opacity: 0;
    transform: translateY(-14px) scale(0.99);
  }
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root),
  .tl-item--enter {
    animation: none !important;
  }
}