:root {
  --max-bg: #eef4ff;
  --max-bg-strong: #e4eeff;
  --max-surface: rgba(255, 255, 255, 0.92);
  --max-surface-strong: #ffffff;
  --max-thread: rgba(237, 244, 255, 0.96);
  --max-line: rgba(110, 146, 204, 0.18);
  --max-line-strong: rgba(110, 146, 204, 0.28);
  --max-text: #17345a;
  --max-muted: #7086a6;
  --max-blue: #2f80ff;
  --max-blue-dark: #1f61cd;
  --max-blue-soft: rgba(47, 128, 255, 0.12);
  --max-green: #33c487;
  --max-green-soft: rgba(51, 196, 135, 0.12);
  --max-danger: #d25050;
  --max-danger-soft: rgba(210, 80, 80, 0.12);
  --max-shadow: 0 24px 80px rgba(38, 88, 168, 0.16);
  --max-radius-xl: 28px;
  --max-radius-lg: 22px;
  --max-radius-md: 18px;
  --max-radius-sm: 14px;
  --font-ui: "SF Pro Text", "Avenir Next", "Segoe UI", sans-serif;
  --font-display: "SF Pro Display", "Avenir Next", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  overflow-x: clip;
  background:
    radial-gradient(circle at top left, rgba(47, 128, 255, 0.16), transparent 34%),
    radial-gradient(circle at bottom right, rgba(51, 196, 135, 0.14), transparent 28%),
    linear-gradient(180deg, #f4f8ff 0%, #eef4ff 40%, #e9f1ff 100%);
  color: var(--max-text);
}

body {
  font-family: var(--font-ui);
}

.app {
  min-height: 100vh;
  min-width: 0;
  padding: 6px;
}

.chat-shell {
  width: min(1080px, 100%);
  min-height: calc(100vh - 12px);
  min-width: 0;
  margin: 0 auto;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 8px;
}

.composer-dock {
  border: 1px solid var(--max-line);
  border-radius: var(--max-radius-xl);
  background: var(--max-surface);
  backdrop-filter: blur(24px);
  box-shadow: var(--max-shadow);
}

.send-button {
  appearance: none;
  border: none;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.16s ease, opacity 0.16s ease, background 0.16s ease;
}

.send-button {
  padding: 14px 22px;
  background: linear-gradient(135deg, var(--max-blue), #4ba0ff);
  color: #ffffff;
  box-shadow: 0 16px 32px rgba(47, 128, 255, 0.24);
}

.send-button--icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  min-width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
}

.send-button__icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.send-button:hover {
  transform: translateY(-1px);
}

.send-button:disabled {
  opacity: 0.55;
  cursor: default;
  transform: none;
}

.thread-card {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  border: 1px solid var(--max-line);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.18)),
    var(--max-thread);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
  overflow: hidden;
}

.thread-actions {
  display: flex;
  justify-content: flex-start;
  gap: 10px;
  padding: 10px 12px 0;
}

.thread-button {
  appearance: none;
  border: 1px solid rgba(47, 128, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--max-blue-dark);
  padding: 10px 16px;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.16s ease, opacity 0.16s ease, background 0.16s ease;
}

.thread-button:hover {
  transform: translateY(-1px);
}

.thread-button:disabled {
  opacity: 0.58;
  cursor: default;
  transform: none;
}

.state-banner {
  margin: 14px 14px 0;
  padding: 12px 14px;
  border: 1px solid rgba(110, 146, 204, 0.16);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--max-muted);
  font-size: 14px;
}

.state-banner[hidden] {
  display: none;
}

.state-banner[data-tone="error"] {
  border-color: rgba(210, 80, 80, 0.18);
  background: rgba(255, 244, 244, 0.94);
  color: #b24242;
}

.state-banner[data-tone="success"] {
  border-color: rgba(51, 196, 135, 0.22);
  background: rgba(239, 255, 248, 0.96);
  color: #217755;
}

.comments-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 12px 10px 14px;
  scrollbar-width: thin;
  scrollbar-color: rgba(47, 128, 255, 0.4) transparent;
}

.comments-list > * {
  min-width: 0;
  max-width: 100%;
}

.comments-list::-webkit-scrollbar {
  width: 8px;
}

.comments-list::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(47, 128, 255, 0.3);
}

.day-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 4px 0 2px;
}

.day-divider span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--max-muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 0 8px 20px rgba(65, 109, 177, 0.06);
}

.post-card {
  display: grid;
  min-width: 0;
  gap: 12px;
  margin-bottom: 6px;
  padding: 16px;
  border: 1px solid rgba(47, 128, 255, 0.12);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 249, 255, 0.98)),
    rgba(255, 255, 255, 0.9);
  box-shadow: 0 16px 36px rgba(65, 109, 177, 0.08);
}

.post-card__eyebrow {
  color: var(--max-blue-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.post-card__text {
  margin: 0;
  color: var(--max-text);
  white-space: pre-wrap;
  writing-mode: horizontal-tb;
  text-orientation: mixed;
  word-break: normal;
  overflow-wrap: anywhere;
  hyphens: auto;
  line-height: 1.58;
}

.post-card__text[hidden] {
  display: none;
}

.post-card__media[hidden] {
  display: none;
}

.post-card__media {
  display: grid;
  gap: 10px;
}

.post-card__image {
  display: block;
  width: min(100%, 640px);
  max-width: 100%;
  max-height: 520px;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 12px 28px rgba(57, 105, 184, 0.12);
}

.message {
  --avatar-hue: 210;
  display: flex;
  min-width: 0;
  gap: 8px;
  align-items: end;
  animation: message-appear 180ms ease;
}

.message--self {
  justify-content: flex-end;
}

.message__avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 16px;
  background: linear-gradient(
    135deg,
    hsl(var(--avatar-hue) 76% 92%),
    hsl(var(--avatar-hue) 78% 84%)
  );
  color: hsl(var(--avatar-hue) 46% 34%);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -0.02em;
  box-shadow: 0 8px 18px rgba(57, 105, 184, 0.16);
}

.message--self .message__avatar {
  background: linear-gradient(135deg, var(--max-blue), #63aeff);
  color: #ffffff;
}

.message__content {
  flex: 1 1 auto;
  min-width: 0;
  max-width: calc(100% - 50px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.message--self .message__content {
  flex: 0 1 auto;
  align-items: flex-end;
  text-align: right;
}

.message__meta {
  display: flex;
  min-width: 0;
  align-items: baseline;
  justify-content: flex-start;
  gap: 0;
  margin: 0 0 8px;
  color: var(--max-muted);
}

.message--self .message__meta {
  justify-content: flex-start;
}

.message__author {
  color: var(--max-text);
  min-width: 0;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.message__time {
  display: block;
  font-size: 12px;
  line-height: 1;
  margin-top: 8px;
  margin-left: auto;
  color: var(--max-muted);
  white-space: nowrap;
}

.message--actionable .message__bubble {
  cursor: context-menu;
}

.message__bubble {
  position: relative;
  display: flex;
  flex-direction: column;
  width: auto;
  min-width: 0;
  max-width: min(82%, 760px);
  align-self: flex-start;
  padding: 13px 15px;
  border: 1px solid rgba(110, 146, 204, 0.14);
  border-radius: 20px 20px 20px 10px;
  background: var(--max-surface-strong);
  text-align: left;
  box-shadow: 0 12px 24px rgba(65, 109, 177, 0.08);
}

.message__menu-button {
  position: absolute;
  top: 7px;
  right: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--max-muted);
  font: inherit;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  opacity: 0.72;
}

.message__menu-button:hover {
  background: rgba(47, 128, 255, 0.08);
  opacity: 1;
}

.message__reply[hidden] {
  display: none;
}

.message__reply {
  display: grid;
  min-width: 0;
  gap: 3px;
  margin-bottom: 10px;
  padding: 10px 12px;
  border-left: 3px solid rgba(47, 128, 255, 0.3);
  border-radius: 14px;
  background: rgba(47, 128, 255, 0.06);
}

.message__reply-author {
  color: var(--max-blue-dark);
  font-size: 12px;
  font-weight: 800;
}

.message__reply-text {
  color: var(--max-muted);
  font-size: 13px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.message__media[hidden] {
  display: none;
}

.message__media {
  display: grid;
  gap: 8px;
}

.message__image {
  display: block;
  width: min(100%, 360px);
  max-width: 100%;
  max-height: 420px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 10px 22px rgba(57, 105, 184, 0.14);
}

.message--self .message__bubble {
  align-self: flex-end;
  border-color: rgba(47, 128, 255, 0.12);
  border-radius: 20px 20px 10px 20px;
  background: linear-gradient(180deg, rgba(228, 240, 255, 0.98), rgba(219, 235, 255, 0.98));
}

.message__text {
  display: block;
  max-width: 100%;
  margin: 0;
  white-space: pre-wrap;
  writing-mode: horizontal-tb;
  text-orientation: mixed;
  word-break: normal;
  overflow-wrap: anywhere;
  hyphens: auto;
  line-height: 1.52;
}

.message__text[hidden] {
  display: none;
}

.message__media:not([hidden]) + .message__text:not([hidden]) {
  margin-top: 10px;
}

.message--empty {
  display: block;
}

.message--empty .message__bubble {
  max-width: 100%;
  border-style: dashed;
  background: rgba(255, 255, 255, 0.72);
  color: var(--max-muted);
}

.composer-dock {
  position: sticky;
  bottom: 0;
  padding: 8px 10px;
}

.reply-state[hidden],
.editor-state[hidden] {
  display: none;
}

.reply-state,
.editor-state {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 0 0 8px;
}

.reply-state__copy,
.editor-state__copy {
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid rgba(47, 128, 255, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
}

.reply-state__title,
.editor-state__title {
  color: var(--max-text);
  font-size: 14px;
  font-weight: 700;
}

.reply-state__caption,
.editor-state__caption {
  margin-top: 2px;
  color: var(--max-muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.reply-state__cancel,
.editor-state__cancel {
  appearance: none;
  border: none;
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(24, 52, 90, 0.08);
  color: var(--max-muted);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.composer-preview[hidden] {
  display: none;
}

.composer-preview {
  padding: 0 0 8px;
}

.composer-preview__card {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid rgba(47, 128, 255, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
}

.composer-preview__image {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  object-fit: cover;
  background: rgba(47, 128, 255, 0.08);
}

.composer-preview__meta {
  min-width: 0;
}

.composer-preview__title {
  color: var(--max-text);
  font-size: 14px;
  font-weight: 700;
}

.composer-preview__caption {
  margin-top: 2px;
  color: var(--max-muted);
  font-size: 12px;
}

.composer-preview__remove,
.composer__media-button {
  appearance: none;
  border: none;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.16s ease, opacity 0.16s ease, background 0.16s ease;
}

.composer-preview__remove {
  width: 34px;
  min-width: 34px;
  height: 34px;
  background: rgba(24, 52, 90, 0.08);
  color: var(--max-muted);
  font-size: 24px;
  line-height: 1;
}

.composer-preview__remove:hover,
.composer__media-button:hover {
  transform: translateY(-1px);
}

.composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.composer__media-button {
  width: 44px;
  min-width: 44px;
  height: 44px;
  background: rgba(47, 128, 255, 0.08);
  color: var(--max-blue-dark);
  box-shadow: inset 0 0 0 1px rgba(47, 128, 255, 0.08);
}

.composer__media-button:disabled,
.composer-preview__remove:disabled {
  opacity: 0.55;
  cursor: default;
  transform: none;
}

.composer__media-icon {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.comment-menu-backdrop[hidden],
.comment-menu[hidden] {
  display: none;
}

.comment-menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: transparent;
}

.comment-menu {
  position: fixed;
  z-index: 61;
  min-width: 188px;
  padding: 8px;
  border: 1px solid rgba(47, 128, 255, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 24px 60px rgba(38, 88, 168, 0.2);
  backdrop-filter: blur(24px);
}

.comment-menu__item {
  appearance: none;
  width: 100%;
  border: none;
  border-radius: 12px;
  padding: 12px 14px;
  background: transparent;
  color: var(--max-text);
  text-align: left;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.comment-menu__item:hover {
  background: rgba(47, 128, 255, 0.08);
}

.comment-menu__item--danger {
  color: #b24242;
}

.comment-menu__item--danger:hover {
  background: rgba(210, 80, 80, 0.08);
}

.composer__input {
  width: 100%;
  min-height: 44px;
  max-height: 120px;
  padding: 11px 16px;
  border: 1px solid rgba(47, 128, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.98);
  color: var(--max-text);
  font: inherit;
  font-size: 15px;
  line-height: 1.35;
  resize: none;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86);
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.composer__input:focus {
  border-color: rgba(47, 128, 255, 0.42);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(47, 128, 255, 0.1);
}

.composer__input--error,
.composer__input--error:focus {
  border-color: rgba(210, 80, 80, 0.58);
  background: #fffafa;
  box-shadow: 0 0 0 4px var(--max-danger-soft);
}

.composer__input--singleline {
  overflow-y: auto;
  scrollbar-width: none;
}

.composer__input--singleline::-webkit-scrollbar {
  display: none;
}

.composer-hint {
  margin: 6px 54px 0;
  color: var(--max-muted);
  font-size: 11px;
  line-height: 1.35;
}

.modal-backdrop[hidden] {
  display: none;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(23, 52, 90, 0.22);
  backdrop-filter: blur(10px);
}

.modal-card {
  width: min(420px, 100%);
  padding: 20px;
  border: 1px solid rgba(47, 128, 255, 0.14);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 28px 80px rgba(38, 88, 168, 0.28);
}

.modal-card__title {
  margin: 0;
  color: var(--max-text);
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.2;
}

.modal-card__text {
  margin: 10px 0 18px;
  color: var(--max-muted);
  font-size: 14px;
  line-height: 1.45;
}

.modal-card__button {
  appearance: none;
  width: 100%;
  min-height: 44px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--max-blue), #4ba0ff);
  color: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.modal-card__button--ghost {
  background: rgba(24, 52, 90, 0.08);
  color: var(--max-text);
  box-shadow: none;
}

.report-card {
  display: grid;
  gap: 0;
}

.report-form {
  display: grid;
  gap: 12px;
}

.report-field {
  display: grid;
  gap: 7px;
}

.report-field span {
  color: var(--max-muted);
  font-size: 12px;
  font-weight: 800;
}

.report-field select,
.report-field textarea {
  width: 100%;
  border: 1px solid rgba(47, 128, 255, 0.16);
  border-radius: 16px;
  background: #fff;
  color: var(--max-text);
  font: inherit;
  outline: none;
}

.report-field select {
  height: 44px;
  padding: 0 12px;
}

.report-field textarea {
  min-height: 82px;
  padding: 12px;
  resize: vertical;
}

.report-field select:focus,
.report-field textarea:focus {
  border-color: rgba(47, 128, 255, 0.42);
  box-shadow: 0 0 0 4px rgba(47, 128, 255, 0.1);
}

.report-actions {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 10px;
}

@keyframes message-appear {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .app {
    padding: 4px;
  }

  .chat-shell {
    min-height: calc(100vh - 8px);
    gap: 6px;
  }

  .composer-dock {
    border-radius: 24px;
  }

  .send-button {
    width: 100%;
    justify-content: center;
  }

  .send-button--icon {
    width: 44px;
    min-width: 44px;
  }

  .thread-card {
    min-height: 280px;
    border-radius: 26px;
  }

  .thread-actions {
    padding: 8px 10px 0;
  }

  .message,
  .message--self {
    gap: 6px;
  }

  .message__avatar {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    font-size: 12px;
  }

  .message__bubble {
    max-width: 100%;
  }

  .post-card {
    padding: 14px;
    border-radius: 22px;
  }

  .post-card__image {
    width: 100%;
    max-height: 360px;
  }

  .message__image {
    width: min(100%, 280px);
  }

  .message__meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .message--self .message__meta {
    align-items: flex-end;
  }

  .composer-dock {
    padding: 8px;
  }

  .composer {
    gap: 8px;
  }

  .composer-hint {
    margin: 6px 50px 0;
    font-size: 10.5px;
  }

  .composer-preview__card {
    grid-template-columns: 48px minmax(0, 1fr) auto;
    gap: 10px;
  }

  .composer-preview__image {
    width: 48px;
    height: 48px;
  }

  .reply-state,
  .editor-state {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .comment-menu {
    min-width: 172px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .message,
  .send-button {
    animation: none;
    transition: none;
  }
}