:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --panel: #0f1620;
  --panel2: #0d131c;
  --text: #e7eef8;
  --muted: #9bb0c9;
  --border: rgba(255, 255, 255, 0.08);
  --accent: #4c7dff;
  --accent2: #a855f7;
  --danger: #ff5b6e;
  --shadow: rgba(0, 0, 0, 0.35);
  --content-max: 980px;
  --content-pad: max(16px, calc((100% - var(--content-max)) / 2));
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  overflow: hidden;
  background: radial-gradient(1200px 700px at 30% 10%, rgba(76, 125, 255, 0.16), transparent 55%),
    radial-gradient(900px 500px at 70% 20%, rgba(168, 85, 247, 0.12), transparent 60%), var(--bg);
  color: var(--text);
}

body.theme-light {
  color-scheme: light;
  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel2: #f1f5f9;
  --text: #0b1220;
  --muted: #475569;
  --border: rgba(15, 23, 42, 0.14);
  --shadow: rgba(15, 23, 42, 0.14);
  background: radial-gradient(1200px 700px at 30% 10%, rgba(76, 125, 255, 0.18), transparent 55%),
    radial-gradient(900px 500px at 70% 20%, rgba(168, 85, 247, 0.16), transparent 60%), var(--bg);
}

.theme-light .sidebar {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.03), transparent), var(--panel2);
}

.theme-light .topbar,
.theme-light .composer {
  background: rgba(255, 255, 255, 0.78);
}

.theme-light .msg--assistant {
  background: rgba(15, 23, 42, 0.02);
}

.theme-light .select,
.theme-light .composer__input,
.theme-light .accountCard__name,
.theme-light .accountCard__prompt,
.theme-light .replaceSlot__prompt {
  background: rgba(15, 23, 42, 0.03);
}

.theme-light .thumb__remove {
  background: rgba(255, 255, 255, 0.92);
}

.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
}

.sidebar {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent), var(--panel2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-width: 260px;
  min-height: 0;
}

.sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 14px 10px 14px;
  border-bottom: 1px solid var(--border);
}

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

.view-batch #batchBtn {
  background: rgba(76, 125, 255, 0.08);
  border-color: rgba(76, 125, 255, 0.25);
  color: var(--text);
}

.brand {
  font-weight: 650;
  letter-spacing: 0.2px;
}

.chatList {
  padding: 10px;
  overflow: auto;
  min-height: 0;
}

.chatItem {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  padding: 10px 10px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  gap: 10px;
  align-items: center;
}

.chatItem:hover {
  background: rgba(255, 255, 255, 0.04);
}

.chatItem--active {
  background: rgba(76, 125, 255, 0.08);
  border-color: rgba(76, 125, 255, 0.25);
}

.chatItem__title {
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 13px;
  color: var(--text);
}

.chatItem__meta {
  font-size: 12px;
  color: var(--muted);
}

.main {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-width: 0;
  min-height: 0;
}

.topbar {
  padding: calc(12px + env(safe-area-inset-top)) calc(var(--content-pad) + env(safe-area-inset-right)) 12px
    calc(var(--content-pad) + env(safe-area-inset-left));
  border-bottom: 1px solid var(--border);
  background: rgba(15, 22, 32, 0.75);
  backdrop-filter: blur(10px);
}

.topbar__menu {
  display: none;
}

.topbar__title {
  display: none;
  max-width: 220px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 12px;
  color: var(--muted);
  padding-bottom: 2px;
}

.controls {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
}

.field {
  display: grid;
  gap: 6px;
}

.field__label {
  font-size: 12px;
  color: var(--muted);
}

.select {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 10px;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  user-select: none;
}

.toggle input {
  width: 16px;
  height: 16px;
}

.status {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
  min-height: 16px;
}

.status--error {
  color: var(--danger);
}

.messages {
  overflow: auto;
  padding: 16px var(--content-pad);
  display: grid;
  gap: 12px;
  min-height: 0;
  grid-row: 2;
}

.batchView {
  overflow: auto;
  padding: 16px var(--content-pad);
  min-height: 0;
  grid-row: 2;
}

.batchPage {
  display: grid;
  gap: 12px;
}

.batchHead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.batchHead__title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.batchHead__sub {
  margin-top: 4px;
  font-size: 12px;
  color: var(--muted);
}

.batchHead__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.batchGrid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 12px;
  align-items: start;
}

.panel {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
  padding: 12px;
  display: grid;
  gap: 10px;
  box-shadow: 0 10px 30px var(--shadow);
}

.theme-light .panel {
  background: rgba(15, 23, 42, 0.02);
}

.panel__title {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.batchAccountsList {
  display: grid;
  gap: 12px;
  grid-auto-flow: column;
  grid-auto-columns: minmax(300px, 1fr);
  align-items: start;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  padding-bottom: 6px;
  scroll-snap-type: x proximity;
}

.batchAccountsList > .accountCard {
  scroll-snap-align: start;
}

.batchResults {
  display: grid;
  gap: 10px;
}

.msg {
  display: grid;
  gap: 8px;
  max-width: 860px;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px var(--shadow);
}

.msg--user {
  margin-left: auto;
  background: rgba(76, 125, 255, 0.09);
  border-color: rgba(76, 125, 255, 0.25);
}

.msg--assistant {
  margin-right: auto;
  background: rgba(255, 255, 255, 0.03);
}

.msg__role {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.msg__text {
  white-space: pre-wrap;
  line-height: 1.42;
  font-size: 14px;
  color: var(--text);
}

.msg__img {
  width: min(100%, 720px);
  max-height: 70vh;
  max-height: 70dvh;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
  object-fit: contain;
}

.msg__imgGrid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.msg__imgThumb {
  width: 160px;
  max-width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
}

.msg__actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.btn--tiny {
  padding: 7px 10px;
  border-radius: 10px;
  font-size: 12px;
}

.btn--left {
  margin-right: auto;
}

.composer {
  border-top: 1px solid var(--border);
  padding: 12px calc(var(--content-pad) + env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom))
    calc(var(--content-pad) + env(safe-area-inset-left));
  background: rgba(15, 22, 32, 0.75);
  backdrop-filter: blur(10px);
  display: grid;
  gap: 10px;
  grid-row: 3;
}

.batchComposer {
  align-content: center;
}

.batchComposer__actions {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.batchComposer__export {
  flex: 1 1 260px;
  min-width: 180px;
  padding: 9px 10px;
  width: auto;
}

.composer__input {
  width: 100%;
  resize: none;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  outline: none;
  line-height: 1.35;
  font-size: 14px;
}

.composer__input:focus {
  border-color: rgba(76, 125, 255, 0.4);
  box-shadow: 0 0 0 4px rgba(76, 125, 255, 0.12);
}

.composer__actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.attachmentBar {
  display: grid;
  gap: 10px;
}

.attachmentBar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.uploadMeta {
  color: var(--muted);
  font-size: 12px;
}

.uploadMeta code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.attachmentPreview {
  display: flex;
  gap: 10px;
  overflow: auto;
  padding-bottom: 2px;
}

.accountCard {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.16);
  padding: 12px;
  display: grid;
  gap: 10px;
}

.accountCard__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.accountCard__name {
  flex: 1;
  min-width: 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 12px;
  outline: none;
  font-size: 14px;
}

.accountCard__name:focus {
  border-color: rgba(76, 125, 255, 0.4);
  box-shadow: 0 0 0 4px rgba(76, 125, 255, 0.12);
}

.accountCard__prompt {
  width: 100%;
  resize: none;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  outline: none;
  line-height: 1.35;
  font-size: 13px;
}

.accountCard__prompt:focus {
  border-color: rgba(76, 125, 255, 0.4);
  box-shadow: 0 0 0 4px rgba(76, 125, 255, 0.12);
}

.replaceGrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.replaceSlot {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px;
  display: grid;
  gap: 8px;
  background: rgba(255, 255, 255, 0.02);
  min-width: 0;
}

.replaceSlot__label {
  font-size: 12px;
  color: var(--muted);
}

.replaceSlot__prompt {
  width: 100%;
  resize: none;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 12px;
  outline: none;
  line-height: 1.3;
  font-size: 13px;
}

.replaceSlot__prompt:focus {
  border-color: rgba(76, 125, 255, 0.4);
  box-shadow: 0 0 0 4px rgba(76, 125, 255, 0.12);
}

.replaceSlot__row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.replaceSlot__thumb {
  width: 54px;
  height: 96px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
  object-fit: cover;
  flex: 0 0 auto;
}

.replaceSlot__buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.thumb {
  position: relative;
  width: 84px;
  height: 84px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
  flex: 0 0 auto;
  overflow: hidden;
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.thumb__remove {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 24px;
  height: 24px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(15, 22, 32, 0.8);
  color: var(--text);
  cursor: pointer;
  line-height: 1;
  font-weight: 700;
}

.thumb__remove:hover {
  filter: brightness(1.12);
}

.btn {
  appearance: none;
  border: 1px solid rgba(76, 125, 255, 0.35);
  background: linear-gradient(180deg, rgba(76, 125, 255, 0.23), rgba(76, 125, 255, 0.12));
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
}

.btn:hover {
  filter: brightness(1.06);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn--secondary {
  border-color: rgba(168, 85, 247, 0.32);
  background: linear-gradient(180deg, rgba(168, 85, 247, 0.22), rgba(168, 85, 247, 0.12));
}

.btn--ghost {
  border-color: var(--border);
  background: transparent;
  color: var(--muted);
}

.backdrop {
  display: none;
}

body.sidebar-open {
  overflow: hidden;
}

@media (max-width: 920px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .topbar__menu {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 10px;
  }

  .topbar__title {
    display: block;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(86vw, 340px);
    transform: translateX(-110%);
    transition: transform 180ms ease;
    z-index: 60;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.55);
  }

  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

  .backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease;
    z-index: 50;
  }

  body.sidebar-open .backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .messages {
    padding: 14px 12px;
  }

  .batchView {
    padding: 14px 12px;
  }

  .msg {
    max-width: 100%;
  }

  .replaceGrid {
    grid-template-columns: 1fr;
  }

  .batchAccountsList {
    grid-auto-columns: 88vw;
  }

  .batchGrid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .controls {
    gap: 10px;
    align-items: center;
  }

  .status {
    flex-basis: 100%;
    margin-left: 0;
  }

  .composer__actions {
    flex-wrap: wrap;
  }

  .composer__actions .btn {
    flex: 1 1 170px;
  }

  .batchComposer__export {
    flex-basis: 100%;
  }

  .batchComposer__actions .btn {
    flex: 1 1 140px;
  }
}