:root {
  --bg: #f4efe7;
  --panel: rgba(255, 251, 245, 0.88);
  --panel-strong: #fff9f2;
  --line: rgba(77, 53, 33, 0.12);
  --text: #2f241a;
  --muted: #7d6a59;
  --accent: #bf5c36;
  --accent-dark: #8d3f21;
  --accent-soft: #f3d4bf;
  --shadow: 0 20px 45px rgba(70, 42, 22, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(191, 92, 54, 0.18), transparent 28%),
    radial-gradient(circle at bottom right, rgba(117, 158, 124, 0.2), transparent 24%),
    linear-gradient(135deg, #f7f1e8 0%, #efe3d5 48%, #f5ecdf 100%);
}

body.modal-open {
  overflow: hidden;
}

button,
input,
a {
  font: inherit;
}

.hidden {
  display: none !important;
}

.settings-button {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 20;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  color: var(--text);
  cursor: pointer;
}

.page-shell {
  width: min(1480px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0 32px;
}

.chat-shell {
  width: min(1540px, calc(100% - 32px));
}

.app-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px;
}

.section-bar,
.section-actions,
.app-header,
.active-room-header,
.rooms-header,
.message-form,
.modal-toolbar,
.modal-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.section-bar {
  margin-bottom: 16px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid rgba(77, 53, 33, 0.12);
  background: transparent;
}

.app-header-wide {
  align-items: flex-start;
  margin-bottom: 8px;
}

.warning-banner {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 16px;
  background: color-mix(in srgb, #ffdb6e 45%, var(--panel-strong));
  border: 1px solid color-mix(in srgb, #d39c00 35%, transparent);
  color: var(--text);
}

.panel-stack,
.chat-layout,
.sidebar,
.chat-panel,
.form-grid,
.room-list,
.messages-list,
.settings-grid,
.preset-grid {
  display: grid;
  gap: 16px;
}

.auth-width {
  width: min(640px, 100%);
}

.wide-chat-layout {
  grid-template-columns: 320px minmax(0, 1fr);
  margin-top: 20px;
}

.card,
.settings-shell {
  border-radius: var(--radius-md);
  background: var(--panel-strong);
  border: 1px solid rgba(77, 53, 33, 0.08);
  box-shadow: var(--shadow);
}

.card {
  padding: 18px;
}

.settings-shell {
  width: min(980px, 100%);
  overflow: hidden;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.card h3,
.app-header h2,
.modal-toolbar h2 {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

.muted,
.status-message {
  color: var(--muted);
  line-height: 1.6;
}

.tabs-card {
  margin-top: 12px;
}

.tabs {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 5px;
  background: var(--accent-soft);
  border-radius: 999px;
  margin-bottom: 18px;
}

.tab-button,
.ghost-button,
.primary-button,
.secondary-button,
.room-button,
.danger-button,
.theme-preset {
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.18s ease, background-color 0.18s ease, opacity 0.18s ease;
}

.tab-button,
.ghost-button,
.secondary-button,
.theme-preset {
  background: transparent;
  color: var(--text);
}

.tab-button {
  padding: 10px 16px;
}

.tab-button.active {
  background: var(--panel-strong);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--text) 10%, transparent);
}

.primary-button,
.secondary-button,
.ghost-button,
.danger-button,
.theme-preset {
  padding: 12px 16px;
  font-weight: 600;
}

.primary-button {
  background: var(--accent);
  color: #fff7f2;
}

.secondary-button {
  background: var(--accent-soft);
}

.ghost-button,
.theme-preset {
  border: 1px solid rgba(77, 53, 33, 0.12);
}

.danger-button {
  background: #a84432;
  color: #fff7f2;
}

.tab-button:hover,
.ghost-button:hover,
.primary-button:hover,
.secondary-button:hover,
.room-button:hover,
.nav-link:hover,
.danger-button:hover,
.theme-preset:hover {
  transform: translateY(-1px);
}

.form-grid label {
  display: grid;
  gap: 8px;
  font-size: 0.92rem;
  color: #5b483a;
}

.form-grid.compact {
  gap: 12px;
}

.checkbox-row {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.checkbox-row input {
  width: 18px;
  height: 18px;
  margin: 0;
}

input {
  width: 100%;
  border: 1px solid rgba(77, 53, 33, 0.12);
  background: rgba(255, 255, 255, 0.92);
  border-radius: 14px;
  padding: 14px 16px;
  color: var(--text);
}

input[type="color"] {
  min-height: 48px;
  padding: 6px;
}

input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 25%, transparent);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}

.rooms-card,
.messages-card {
  min-height: 0;
}

.room-list {
  max-height: 420px;
  overflow: auto;
}

.room-button {
  width: 100%;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--accent-soft) 55%, var(--panel-strong));
  text-align: left;
}

.room-button.active {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 28%, white), color-mix(in srgb, var(--accent-soft) 70%, white));
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
}

.room-button strong,
.join-code-pill strong {
  display: block;
  letter-spacing: 0.12em;
}

.room-button span,
.join-code-pill span {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.join-code-pill {
  padding: 12px 14px;
  border-radius: 18px;
  background: color-mix(in srgb, var(--accent-soft) 50%, var(--panel-strong));
  min-width: 122px;
}

.public-room-card {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--accent-soft) 35%, var(--panel-strong));
  border: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
}

.public-room-card strong {
  display: block;
  margin: 4px 0;
}

.public-room-card span {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.room-tools {
  margin-top: 14px;
}

.tall-messages-card {
  display: grid;
  grid-template-rows: minmax(520px, 1fr) auto auto;
}

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

.sticker-chip {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--accent-soft) 35%, var(--panel-strong));
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
}

.sticker-chip.active {
  background: color-mix(in srgb, var(--accent) 24%, var(--panel-strong));
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.messages-list {
  align-content: start;
  min-height: 0;
  max-height: 68vh;
  overflow: auto;
  padding-right: 6px;
}

.message-bubble {
  padding: 14px 16px;
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel-strong) 84%, var(--accent-soft));
  border: 1px solid rgba(77, 53, 33, 0.08);
}

.message-bubble.current-user {
  background: color-mix(in srgb, var(--accent) 24%, var(--panel-strong));
}

.message-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.message-text {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.55;
}

.message-sticker {
  margin-bottom: 8px;
  font-weight: 600;
}

.message-text:empty {
  display: none;
}

.empty-state {
  place-items: center;
  text-align: center;
  color: var(--muted);
}

.status-message {
  min-height: 24px;
  margin: 18px 2px 0;
}

.overlay-modal {
  position: fixed;
  inset: 0;
  padding: 24px;
  background: rgba(44, 30, 20, 0.7);
  backdrop-filter: blur(10px);
  z-index: 1000;
}

.overlay-modal.hidden {
  display: none;
}

.settings-shell {
  margin: 0 auto;
}

.modal-toolbar {
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

.settings-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 20px;
}

.preset-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.modal-actions,
.settings-actions {
  margin-top: 0;
}

@media (max-width: 960px) {
  .wide-chat-layout,
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .page-shell,
  .chat-shell {
    width: min(100% - 20px, 100%);
    padding: 72px 0 24px;
  }

  .app-panel {
    padding: 18px;
  }

  .settings-button {
    top: 12px;
    right: 12px;
  }

  .section-bar,
  .section-actions,
  .active-room-header,
  .rooms-header,
  .message-form,
  .modal-toolbar,
  .modal-actions,
  .settings-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .join-code-pill,
  .message-form button,
  .nav-link,
  .danger-button,
  .theme-preset {
    width: 100%;
  }

  .overlay-modal {
    padding: 10px;
  }
}