:root {
  --bg: #0b1016;
  --panel: rgba(16, 21, 30, 0.86);
  --panel-strong: rgba(12, 17, 25, 0.98);
  --border: rgba(255, 255, 255, 0.08);
  --text: #edf3ff;
  --muted: #9ca9c2;
  --accent: #f6c177;
  --accent-2: #66d9ef;
  --good: #7ee787;
  --bad: #ff7b72;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.36);
  --radius: 22px;
  --radius-sm: 14px;
  --nav-width: 300px;
  --context-width: 300px;
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(102, 217, 239, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(246, 193, 119, 0.15), transparent 24%),
    linear-gradient(180deg, #06080c 0%, #0a0e14 100%);
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.86rem 1.05rem;
  background: linear-gradient(135deg, var(--accent), #e89d58);
  color: #18130b;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(246, 193, 119, 0.18);
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

button.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  box-shadow: none;
  border: 1px solid var(--border);
}

button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}

button:disabled,
input:disabled,
select:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

input,
select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 0.92rem 1rem;
  outline: none;
}

input:focus,
select:focus {
  border-color: rgba(102, 217, 239, 0.45);
  box-shadow: 0 0 0 4px rgba(102, 217, 239, 0.12);
}

.shell {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  padding: 24px;
}

.backdrop {
  position: absolute;
  border-radius: 999px;
  filter: blur(10px);
  pointer-events: none;
}

.backdrop-a {
  width: 320px;
  height: 320px;
  top: -80px;
  left: -40px;
  background: rgba(246, 193, 119, 0.15);
}

.backdrop-b {
  width: 420px;
  height: 420px;
  right: -80px;
  bottom: -180px;
  background: rgba(102, 217, 239, 0.12);
}

.panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.auth-panel {
  max-width: 560px;
  margin: 8vh auto 0;
  padding: 32px;
  border-radius: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 28px;
}

.brand-mark,
.avatar {
  display: inline-grid;
  place-items: center;
  border-radius: 18px;
  font-weight: 900;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, rgba(246, 193, 119, 0.22), rgba(102, 217, 239, 0.22));
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.brand-mark {
  width: 62px;
  height: 62px;
  letter-spacing: 0.08em;
}

.avatar {
  flex: none;
  border-radius: 999px;
  color: #f8fbff;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
}

.avatar-sm {
  width: 28px;
  height: 28px;
  font-size: 0.7rem;
}

.avatar-md {
  width: 42px;
  height: 42px;
  font-size: 0.85rem;
}

.avatar-lg {
  width: 58px;
  height: 58px;
  font-size: 0.95rem;
}

html[data-avatars="hide"] .avatar {
  display: none;
}

html[data-motion="reduce"] *,
html[data-motion="reduce"] *::before,
html[data-motion="reduce"] *::after {
  animation: none !important;
  transition-duration: 0s !important;
  scroll-behavior: auto !important;
}

html[data-density="compact"] .nav-panel,
html[data-density="compact"] .main-panel,
html[data-density="compact"] .context-panel {
  padding: 14px;
}

html[data-density="compact"] .message,
html[data-density="compact"] .card,
html[data-density="compact"] .setting-row,
html[data-density="compact"] .context-block,
html[data-density="compact"] .room-item,
html[data-density="compact"] .member-item {
  padding: 12px;
}

html[data-compact-time="1"] .message-meta {
  margin-bottom: 4px;
}

.brand h1,
.screen-header h2,
.context-header h2,
.nav-user h2 {
  margin: 0;
}

.brand h1 {
  font-size: 2.15rem;
}

.brand p,
.eyebrow,
.room-meta,
.message-time,
.member-meta,
.form-error,
.screen-note,
.nav-hint {
  color: var(--muted);
}

.auth-form {
  display: grid;
  gap: 16px;
}

.auth-form label {
  display: grid;
  gap: 8px;
  font-size: 0.95rem;
}

.auth-form button {
  margin-top: 8px;
}

.form-error {
  min-height: 1.2rem;
}

.workspace {
  min-height: calc(100vh - 48px);
  display: grid;
  grid-template-columns: var(--nav-width) minmax(0, 1fr) var(--context-width);
  gap: 18px;
  align-items: stretch;
}

.nav-panel,
.main-panel,
.context-panel {
  border-radius: 26px;
  padding: 18px;
  min-height: 0;
}

.nav-panel,
.context-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow: hidden;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
}

.dot-online {
  background: var(--good);
  box-shadow: 0 0 0 4px rgba(126, 231, 135, 0.12);
}

.dot-offline {
  background: var(--bad);
  box-shadow: 0 0 0 4px rgba(255, 123, 114, 0.12);
}

.nav-actions,
.nav-group-header,
.screen-actions,
.message-actions,
.composer {
  display: flex;
  gap: 10px;
}

.nav-actions {
  flex-wrap: wrap;
}

.nav-group {
  display: grid;
  gap: 10px;
  min-height: 0;
}

.nav-group h3 {
  margin: 0;
  font-size: 0.96rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-list,
.room-list,
.member-list {
  display: grid;
  gap: 8px;
}

.nav-item,
.room-item,
.member-item,
.context-block,
.card,
.search-result,
.notification-item,
.pin-item,
.friend-item,
.setting-row,
.channel-card,
.dm-card {
  border-radius: 16px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.nav-item,
.room-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  text-align: left;
  padding: 12px 14px;
}

.member-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid transparent;
  cursor: pointer;
}

.member-item:hover {
  border-color: rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.07);
}

.nav-item.active,
.room-item.active {
  border-color: rgba(102, 217, 239, 0.34);
  background: rgba(102, 217, 239, 0.12);
}

.nav-item:hover:not(.active),
.room-item:hover:not(.active),
.search-result:hover,
.notification-item:hover,
.pin-item:hover,
.friend-item:hover,
.channel-card:hover,
.dm-card:hover {
  border-color: rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.07);
}

.nav-label,
.room-label,
.card strong,
.result-title,
.notification-title,
.friend-title,
.pin-title {
  font-weight: 700;
}

.room-sub,
.nav-sub,
.card p,
.result-meta,
.notification-meta,
.friend-meta,
.pin-meta {
  color: var(--muted);
  font-size: 0.88rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.6rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: rgba(102, 217, 239, 0.14);
  color: var(--accent-2);
  font-size: 0.76rem;
  font-weight: 700;
}

.main-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-height: 0;
}

.screen-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.screen-host {
  overflow: auto;
  min-height: 0;
  padding: 16px 6px 8px 0;
}

.screen {
  display: grid;
  gap: 14px;
}

.screen-grid {
  display: grid;
  gap: 12px;
}

.screen-grid.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.screen-grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.message-list {
  display: grid;
  gap: 12px;
}

.message {
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.035);
}

.message.system {
  background: rgba(102, 217, 239, 0.08);
}

.message.private {
  background: rgba(246, 193, 119, 0.09);
}

.message.mention {
  border-color: rgba(246, 193, 119, 0.28);
}

.message.pinned {
  border-color: rgba(126, 231, 135, 0.26);
}

.message-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.message-author-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.message-kind {
  color: var(--muted);
  font-size: 0.82rem;
}

.message-body {
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.45;
}

.message-reactions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.reaction-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 0.86rem;
}

.message-actions {
  margin-top: 10px;
  flex-wrap: wrap;
}

.message-actions button,
.compact-action,
.context-link {
  padding: 0.52rem 0.8rem;
  font-size: 0.85rem;
}

.composer-bar {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.composer {
  flex-wrap: wrap;
  align-items: center;
}

.composer input {
  flex: 1;
}

.composer-hint,
.screen-note {
  width: 100%;
  font-size: 0.88rem;
}

.empty-state,
.loading-state {
  color: var(--muted);
  text-align: center;
  padding: 24px 0;
  border: 1px dashed rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
}

.card,
.context-block,
.channel-card,
.dm-card,
.search-result,
.notification-item,
.pin-item,
.friend-item,
.setting-row {
  padding: 14px;
}

.card-head,
.channel-card-head,
.dm-card-head,
.notification-head,
.friend-head,
.pin-head,
.setting-row-head {
  display: flex;
  gap: 12px;
  align-items: center;
}

.card-body,
.context-body,
.channel-card-body,
.dm-card-body,
.notification-body,
.pin-body,
.setting-row-body {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.pill-row,
.chip-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 0.82rem;
}

.context-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.member-list {
  overflow: auto;
  padding-right: 4px;
}

.workspace-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 10, 0.56);
  backdrop-filter: blur(2px);
}

.mobile-only {
  display: none;
}

.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;
}

.screen-section {
  display: grid;
  gap: 14px;
}

.small {
  font-size: 0.86rem;
}

.settings-grid {
  display: grid;
  gap: 10px;
}

.setting-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.setting-toggle label {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.setting-toggle input[type="checkbox"] {
  width: auto;
  min-width: 20px;
  box-shadow: none;
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .nav-panel,
  .context-panel {
    position: fixed;
    inset: 12px auto 12px 12px;
    width: min(90vw, 340px);
    z-index: 30;
    transform: translateX(-110%);
    transition: transform 0.16s ease;
  }

  .context-panel {
    inset: 12px 12px 12px auto;
    transform: translateX(110%);
  }

  .nav-panel.open,
  .context-panel.open {
    transform: translateX(0);
  }

  .workspace-overlay {
    display: block;
  }

  .mobile-only {
    display: inline-flex;
  }

  .screen-grid.cols-2,
  .screen-grid.cols-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .shell {
    padding: 12px;
  }

  .auth-panel,
  .nav-panel,
  .main-panel,
  .context-panel {
    border-radius: 20px;
  }

  .screen-header,
  .context-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .composer {
    flex-direction: column;
    align-items: stretch;
  }
}