:root {
  color-scheme: dark;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.18);
  --shadow-md: 0 18px 40px rgba(0, 0, 0, 0.1);
  --shadow-panel-inset: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  --transition-theme: 420ms cubic-bezier(0.22, 1, 0.36, 1);
  --theme-color: #111315;
  --bg: #0e1013;
  --bg-glow-a: rgba(255, 255, 255, 0.04);
  --bg-glow-b: rgba(114, 129, 109, 0.09);
  --surface: rgba(18, 20, 24, 0.88);
  --surface-strong: rgba(20, 22, 26, 0.96);
  --surface-soft: rgba(255, 255, 255, 0.03);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #f6f2ea;
  --text-soft: rgba(246, 242, 234, 0.72);
  --text-muted: rgba(246, 242, 234, 0.44);
  --accent: #6e846d;
  --accent-strong: #7b9279;
  --accent-contrast: #f9f6ef;
  --danger: #d98989;
  --success-bg: rgba(97, 143, 98, 0.2);
  --error-bg: rgba(168, 97, 97, 0.2);
  --busy-bg: rgba(255, 255, 255, 0.07);
}

html[data-theme='light'] {
  color-scheme: light;
  --theme-color: #f4eee5;
  --bg: #f4eee5;
  --bg-glow-a: rgba(255, 255, 255, 0.82);
  --bg-glow-b: rgba(137, 121, 93, 0.08);
  --surface: rgba(255, 252, 248, 0.9);
  --surface-strong: rgba(255, 253, 249, 0.96);
  --surface-soft: rgba(80, 63, 39, 0.03);
  --line: rgba(96, 77, 47, 0.07);
  --line-strong: rgba(96, 77, 47, 0.12);
  --text: #28231d;
  --text-soft: rgba(40, 35, 29, 0.7);
  --text-muted: rgba(40, 35, 29, 0.45);
  --accent: #5d735d;
  --accent-strong: #526851;
  --accent-contrast: #fffdfa;
  --danger: #b46b66;
  --success-bg: rgba(100, 136, 100, 0.14);
  --error-bg: rgba(187, 118, 111, 0.14);
  --busy-bg: rgba(59, 50, 41, 0.06);
  --shadow-lg: 0 6px 24px rgba(96, 77, 47, 0.04), 0 1px 3px rgba(96, 77, 47, 0.02);
  --shadow-md: 0 3px 12px rgba(96, 77, 47, 0.03);
  --shadow-panel-inset: inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

html {
  background: var(--bg);
  transition: background-color var(--transition-theme);
}

body {
  background:
    radial-gradient(circle at top left, var(--bg-glow-a), transparent 34%),
    radial-gradient(circle at bottom right, var(--bg-glow-b), transparent 30%),
    linear-gradient(180deg, var(--bg), color-mix(in srgb, var(--bg) 88%, #000 12%));
  color: var(--text);
  font-family:
    'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', 'Segoe UI', sans-serif;
  transition:
    background var(--transition-theme),
    color var(--transition-theme);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
}

button:disabled,
input:disabled,
textarea:disabled {
  cursor: not-allowed;
}

img {
  display: block;
  max-width: 100%;
}

[hidden],
.is-hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.panel,
.screen-header,
.screen-title h1,
.theme-switch,
.theme-switch__thumb,
.theme-switch__option,
.account-trigger,
.account-trigger__status,
.account-popover,
.account-popover__badge,
.account-action,
.editor-panel__textarea,
.panel-label,
.panel-count,
.counter,
.image-card__frame,
.image-card__remove,
.image-add-card,
.schedule-panel__value,
.submit-button {
  transition:
    background-color var(--transition-theme),
    background var(--transition-theme),
    color var(--transition-theme),
    border-color var(--transition-theme),
    box-shadow var(--transition-theme),
    opacity var(--transition-theme),
    transform 0.22s ease;
}

.screen-shell {
  width: min(100%, 560px);
  margin: 0 auto;
  padding:
    calc(var(--safe-top) + 22px)
    16px
    calc(var(--safe-bottom) + 24px);
  min-width: 0;
  max-width: 100%;
}

.composer-screen {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.screen-header {
  position: sticky;
  top: calc(var(--safe-top) + 8px);
  z-index: 7;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: color-mix(in srgb, var(--surface-strong) 92%, transparent);
  backdrop-filter: blur(28px);
}

.screen-header__lead {
  display: flex;
  align-items: center;
  min-width: 0;
  flex: 1;
}

.screen-header__actions {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.theme-switch:hover,
.theme-switch:focus-visible,
.account-trigger:hover,
.account-trigger:focus-visible,
.image-add-card:hover,
.image-add-card:focus-visible,
.submit-button:hover,
.submit-button:focus-visible,
.account-action:hover,
.account-action:focus-visible,
.schedule-panel__value:hover,
.schedule-panel__value:focus-visible {
  transform: translateY(-1px);
}

.screen-title {
  min-width: 0;
  display: flex;
  align-items: center;
  min-height: 42px;
}

.screen-title h1 {
  margin: 0;
  font-size: clamp(1.6rem, 4vw, 1.92rem);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.theme-switch {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  align-items: center;
  width: 138px;
  min-width: 138px;
  padding: 5px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-strong) 90%, transparent);
  box-shadow:
    var(--shadow-panel-inset),
    var(--shadow-md);
  overflow: hidden;
  isolation: isolate;
}

.theme-switch__thumb {
  position: absolute;
  top: 5px;
  left: 5px;
  width: calc(50% - 5px);
  height: calc(100% - 10px);
  border-radius: 999px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 28%, var(--surface-strong)), color-mix(in srgb, var(--surface-strong) 88%, #fff 12%));
  box-shadow:
    0 12px 26px rgba(0, 0, 0, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);
  transition:
    transform var(--transition-theme),
    background var(--transition-theme),
    box-shadow var(--transition-theme);
}

html[data-theme='dark'] .theme-switch__thumb {
  transform: translateX(100%);
}

.theme-switch__option {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  min-height: 42px;
  color: var(--text-muted);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  transition:
    color var(--transition-theme),
    transform 0.22s ease,
    opacity var(--transition-theme);
}

html[data-theme='light'] .theme-switch__option[data-theme-value='light'],
html[data-theme='dark'] .theme-switch__option[data-theme-value='dark'] {
  color: var(--text);
  transform: scale(1.02);
}

.account-menu {
  position: relative;
}

.account-trigger {
  position: relative;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 54%, var(--surface-strong)), color-mix(in srgb, var(--surface-strong) 88%, #fff 12%));
  color: var(--accent-contrast);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.16),
    var(--shadow-md);
}

.account-trigger__label {
  font-size: 0.94rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.account-trigger__status {
  position: absolute;
  right: 4px;
  bottom: 4px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 2px solid color-mix(in srgb, var(--surface-strong) 92%, transparent);
  background: color-mix(in srgb, var(--text-muted) 80%, transparent);
}

.account-trigger[data-account-state='verified'] .account-trigger__status {
  background: var(--accent);
}

.account-trigger[data-account-state='error'] .account-trigger__status {
  background: var(--danger);
}

.account-popover {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  z-index: 9;
  width: min(296px, calc(100vw - 40px));
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface-strong) 96%, transparent), color-mix(in srgb, var(--surface) 94%, transparent));
  box-shadow: var(--shadow-panel-inset), var(--shadow-lg);
  backdrop-filter: blur(28px);
  opacity: 0;
  transform: translateY(-8px) scale(0.96);
  transform-origin: top right;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 0.22s ease,
    transform 0.22s ease,
    visibility 0s linear 0.22s;
}

.account-menu.is-open .account-popover,
.account-menu.is-closing .account-popover {
  visibility: visible;
  transition-delay: 0s;
}

.account-menu.is-open .account-popover {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.account-menu.is-closing .account-popover {
  opacity: 0;
  transform: translateY(-8px) scale(0.96);
  pointer-events: none;
}

.account-menu.is-open .account-trigger {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 18px 34px rgba(0, 0, 0, 0.16);
}

.account-popover__identity {
  display: grid;
  gap: 10px;
}

.account-popover__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface-soft);
  color: var(--text-soft);
  font-size: 0.84rem;
}

.account-popover__copy {
  min-width: 0;
}

.account-popover__copy strong,
.account-popover__copy p {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.account-popover__copy strong {
  font-size: 0.95rem;
  font-weight: 500;
}

.account-popover__copy p {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 0.86rem;
}

.account-popover__actions {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.account-action,
.account-action:visited {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--text-soft);
}

.composer-form {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow-panel-inset), var(--shadow-lg);
  backdrop-filter: blur(22px);
  min-width: 0;
  max-width: 100%;
}

.editor-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 450px;
  padding: 24px 20px 16px;
}

.editor-panel__overlay {
  position: absolute;
  inset: 24px 20px auto;
  display: grid;
  gap: 14px;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.editor-panel.is-filled .editor-panel__overlay {
  opacity: 0;
}

.editor-panel__subtitle {
  margin: 0;
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.8;
}

.editor-panel__textarea {
  width: 100%;
  min-height: 360px;
  flex: 1;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  resize: none;
  outline: none;
  font-size: 1.04rem;
  line-height: 1.95;
  caret-color: var(--accent-strong);
}

.editor-panel__textarea::placeholder {
  color: transparent;
}

.editor-panel__footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 10px;
}

.counter,
.panel-count {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.media-panel {
  padding: 16px 16px 14px;
  width: 100%;
  min-width: 0;
}

.panel-head,
.schedule-panel__main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  color: var(--text-soft);
  font-size: 0.96rem;
}

.image-grid {
  display: flex;
  align-items: stretch;
  flex-wrap: nowrap;
  gap: 10px;
  margin-top: 14px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 2px 2px 8px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}

.image-card,
.image-add-card {
  flex: 0 0 92px;
  width: 92px;
  scroll-snap-align: start;
}

.image-card,
.image-card__frame,
.image-add-card {
  border-radius: 16px;
}

.image-card__frame,
.image-add-card {
  position: relative;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 1;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--surface-strong) 82%, transparent);
}

.image-grid::-webkit-scrollbar {
  height: 6px;
}

.image-grid::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: color-mix(in srgb, var(--line-strong) 85%, transparent);
}

.image-card__preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-card__remove {
  position: absolute;
  top: 8px;
  right: 8px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: rgba(255, 250, 245, 0.92);
  color: #6a4337;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

html[data-theme='dark'] .image-card__remove {
  background: rgba(255, 248, 241, 0.96);
}

.image-add-card {
  display: grid;
  place-items: center;
  border-style: dashed;
  color: var(--text-muted);
  font-size: 2rem;
  transition:
    border-color 0.22s ease,
    color 0.22s ease,
    background-color 0.22s ease,
    transform 0.22s ease;
}

.image-add-card:hover,
.image-add-card:focus-visible {
  border-color: var(--line-strong);
  color: var(--text-soft);
  background: var(--surface-soft);
}

.image-add-card:disabled {
  opacity: 0.42;
  transform: none;
}

.account-action,
.schedule-panel__value {
  color: var(--text-soft);
  transition:
    color var(--transition-theme),
    transform 0.22s ease;
}

.account-action {
  padding: 0 14px;
}

.account-action:hover,
.account-action:focus-visible,
.schedule-panel__value:hover,
.schedule-panel__value:focus-visible {
  color: var(--text);
  background: color-mix(in srgb, var(--surface-soft) 82%, var(--accent) 18%);
}

.schedule-panel {
  padding: 18px 20px;
}

.status-banner {
  position: fixed;
  left: 50%;
  bottom: calc(var(--safe-bottom) + 86px);
  z-index: 10;
  width: min(calc(100vw - 34px), 22rem);
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: color-mix(in srgb, var(--surface-strong) 62%, transparent);
  color: var(--text-soft);
  text-align: center;
  font-size: 0.86rem;
  line-height: 1.55;
  box-shadow:
    0 14px 30px rgba(0, 0, 0, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(18px);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%);
  pointer-events: none;
  transition:
    opacity 0.22s ease,
    visibility 0s linear 0.22s,
    background-color var(--transition-theme),
    color var(--transition-theme),
    border-color var(--transition-theme),
    box-shadow var(--transition-theme);
}

.status-banner.is-visible,
.status-banner.is-fading {
  visibility: visible;
  transition-delay: 0s;
}

.status-banner.is-visible {
  opacity: 1;
}

.status-banner.is-fading {
  opacity: 0;
}

.status-banner[data-tone='success'] {
  border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
  background: color-mix(in srgb, var(--success-bg) 92%, var(--surface) 8%);
  color: var(--text);
}

.status-banner[data-tone='error'] {
  border-color: color-mix(in srgb, var(--danger) 28%, var(--line));
  background: color-mix(in srgb, var(--error-bg) 92%, var(--surface) 8%);
  color: var(--text);
}

.status-banner[data-tone='busy'] {
  border-color: var(--line-strong);
  background: color-mix(in srgb, var(--busy-bg) 92%, var(--surface) 8%);
  color: var(--text);
}

html[data-theme='light'] .account-menu.is-open .account-trigger {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 4px 12px rgba(111, 91, 62, 0.05);
}

html[data-theme='light'] .image-card__remove {
  box-shadow: 0 3px 8px rgba(96, 77, 47, 0.06);
}

html[data-theme='light'] .status-banner {
  box-shadow:
    0 4px 16px rgba(111, 91, 62, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

html[data-theme='light'] .submit-button {
  box-shadow: 0 6px 18px rgba(93, 115, 93, 0.1), 0 2px 4px rgba(93, 115, 93, 0.04);
}

.schedule-panel__main {
  flex-wrap: wrap;
}

.schedule-panel__value-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.schedule-panel__value {
  padding: 0;
  white-space: nowrap;
}

.submit-button {
  position: sticky;
  bottom: calc(var(--safe-bottom) + 8px);
  z-index: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 58px;
  padding: 0 20px;
  border-radius: 18px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent-strong) 90%, #000 10%), var(--accent));
  color: var(--accent-contrast);
  box-shadow: 0 20px 36px rgba(62, 79, 63, 0.22);
  transition:
    transform 0.24s ease,
    box-shadow 0.24s ease,
    opacity 0.24s ease;
}

.submit-button__label {
  font-size: 1.22rem;
  letter-spacing: 0.12em;
}

.submit-button:disabled {
  opacity: 0.6;
  transform: none;
  box-shadow: none;
}

@media (max-width: 420px) {
  .screen-shell {
    padding-left: 12px;
    padding-right: 12px;
  }

  .screen-header {
    top: calc(var(--safe-top) + 6px);
    gap: 12px;
    padding: 12px 14px;
  }

  .screen-header__actions {
    gap: 8px;
  }

  .theme-switch {
    width: 126px;
    min-width: 126px;
  }

  .account-trigger {
    width: 40px;
    height: 40px;
  }

  .account-popover {
    width: min(280px, calc(100vw - 28px));
  }

  .editor-panel {
    min-height: 420px;
    padding-left: 18px;
    padding-right: 18px;
  }

  .editor-panel__overlay {
    left: 18px;
    right: 18px;
  }

  .image-grid {
    gap: 8px;
  }

  .image-card,
  .image-add-card {
    flex-basis: 84px;
    width: 84px;
  }

  .submit-button__label {
    font-size: 1.12rem;
  }

  .status-banner {
    bottom: calc(var(--safe-bottom) + 74px);
    width: min(calc(100vw - 22px), 20rem);
    padding: 9px 12px;
    border-radius: 14px;
    font-size: 0.82rem;
  }
}

@media (max-width: 359px) {
  .panel-head,
  .schedule-panel__main {
    flex-direction: column;
    align-items: flex-start;
  }

  .account-popover__identity {
    gap: 8px;
  }

  .image-card,
  .image-add-card {
    flex-basis: 78px;
    width: 78px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}