:root {
  color-scheme: light;
  --bg: #fafafc;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  --surface-muted: #f5f7fb;
  --border: #ececec;
  --text: #171717;
  --text-muted: #6b7280;
  --primary: #6d5bff;
  --primary-hover: #5a46ff;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 16px 40px rgba(23, 23, 23, 0.06);
  --shadow-soft: 0 10px 32px rgba(26, 32, 44, 0.08);
  --radius: 20px;
  --radius-sm: 14px;
  --radius-xs: 10px;
  --transition: 180ms ease;
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0f1220;
  --surface: #171b2e;
  --surface-elevated: #1d233a;
  --surface-muted: #111522;
  --border: rgba(255, 255, 255, 0.1);
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #8b7bff;
  --primary-hover: #7a6bff;
  --shadow: 0 16px 40px rgba(2, 8, 23, 0.35);
  --shadow-soft: 0 10px 32px rgba(2, 8, 23, 0.24);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at top left, rgba(109, 91, 255, 0.13), transparent 22%), var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
  min-height: 100vh;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
  border: 0;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(109, 91, 255, 0.24);
  outline-offset: 2px;
}

.app-shell {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px 18px 20px;
  border-right: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
}

:root[data-theme='dark'] .sidebar {
  background: rgba(23, 27, 46, 0.76);
}

.sidebar__top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--primary), #8b7bff);
  box-shadow: var(--shadow-soft);
}

.brand__name {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

.brand__caption {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 0.76rem;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.icon-button:hover {
  transform: translateY(-1px);
  border-color: rgba(109, 91, 255, 0.24);
}

.icon-button svg,
.search svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-button--ghost {
  background: transparent;
  box-shadow: none;
  border-color: transparent;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.nav__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav__label {
  margin: 0 0 4px 10px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--text-muted);
  text-decoration: none;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.nav__item:hover {
  background: rgba(109, 91, 255, 0.08);
  color: var(--text);
  transform: translateX(2px);
}

.nav__item--active {
  background: linear-gradient(135deg, rgba(109, 91, 255, 0.12), rgba(255, 255, 255, 0.4));
  color: var(--text);
  font-weight: 600;
}

.nav__icon {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  font-size: 0.95rem;
}

.sidebar__footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.upgrade-card,
.info-card,
.profile-card,
.panel,
.stat-card,
.conversation-item,
.message-bubble,
.composer {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.upgrade-card {
  padding: 16px;
  border-radius: 18px;
}

.upgrade-card__badge {
  display: inline-flex;
  padding: 4px 8px;
  border-radius: 999px;
  margin-bottom: 10px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(109, 91, 255, 0.12);
}

.upgrade-card__title {
  margin: 0 0 6px;
  font-weight: 700;
}

.upgrade-card__text {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

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

.button--primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  box-shadow: 0 12px 24px rgba(109, 91, 255, 0.22);
}

.button--ghost {
  color: var(--text);
  background: var(--surface-muted);
}

.profile-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 16px;
}

.profile-card__name {
  margin: 0;
  font-weight: 700;
}

.profile-card__role {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 0.84rem;
}

.dashboard {
  display: grid;
  grid-template-columns: minmax(300px, 330px) minmax(0, 1fr) minmax(280px, 330px);
  gap: 18px;
  padding: 18px;
}

.panel {
  border-radius: 24px;
  padding: 18px;
  min-height: 0;
}

.inbox-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.panel__header,
.conversation-panel__header,
.info-panel__hero,
.info-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.eyebrow {
  margin: 0 0 4px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
}

.panel__header h2,
.info-panel__hero h3,
.info-card__header h4 {
  margin: 0;
}

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

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab {
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--text-muted);
  background: transparent;
  font-weight: 600;
  transition: background var(--transition), color var(--transition);
}

.tab.is-active {
  color: var(--primary);
  background: rgba(109, 91, 255, 0.12);
}

.search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
}

.search input {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--text);
}

.search input::placeholder {
  color: var(--text-muted);
}

.conversation-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-right: 4px;
  overflow: auto;
}

.conversation-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border-radius: 16px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.conversation-item:hover {
  transform: translateY(-2px);
  border-color: rgba(109, 91, 255, 0.2);
}

.conversation-item.is-active {
  border-color: rgba(109, 91, 255, 0.22);
  box-shadow: 0 16px 34px rgba(109, 91, 255, 0.14);
}

.conversation-item__meta {
  min-width: 0;
}

.conversation-item__title {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 4px;
  font-weight: 700;
}

.conversation-item__preview {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.86rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conversation-item__time {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.avatar {
  display: grid;
  place-items: center;
  color: white;
  font-weight: 700;
  border-radius: 50%;
  background: linear-gradient(135deg, #7c8cff, #5f6ef9);
}

.avatar--small {
  width: 40px;
  height: 40px;
  font-size: 0.88rem;
}

.avatar--large {
  width: 58px;
  height: 58px;
  font-size: 1.05rem;
}

.avatar--gradient {
  background: linear-gradient(135deg, var(--primary), #8b7bff);
}

.badge,
.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(109, 91, 255, 0.12);
}

.pill--soft {
  color: var(--text-muted);
  background: var(--surface-muted);
}

.conversation-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.conversation-panel__person {
  display: flex;
  align-items: center;
  gap: 12px;
}

.conversation-panel__name {
  margin: 0 0 3px;
  font-weight: 700;
}

.conversation-panel__meta {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.message-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
  overflow: auto;
  padding: 6px 2px 0;
}

.message-bubble {
  max-width: min(78%, 600px);
  padding: 14px 16px;
  border-radius: 18px 18px 18px 6px;
  box-shadow: var(--shadow-soft);
}

.message-bubble--pending {
  opacity: 0.75;
  border: 1px dashed rgba(109, 91, 255, 0.35);
}

.message-bubble--error {
  border-color: rgba(239, 68, 68, 0.35);
  background: rgba(239, 68, 68, 0.06);
}

.message-bubble--self {
  align-self: flex-end;
  border-radius: 18px 18px 6px 18px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: white;
}

.message-bubble__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 0.78rem;
  opacity: 0.9;
}

.message-bubble p {
  margin: 0;
  line-height: 1.6;
}

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

.attach-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  background: rgba(255, 255, 255, 0.16);
}

.composer {
  border-radius: 20px;
  padding: 14px;
}

.composer__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.composer__chip {
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--text);
  background: var(--surface-muted);
}

.composer__form {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.composer__form textarea {
  flex: 1;
  resize: none;
  min-height: 52px;
  max-height: 140px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
  color: var(--text);
}

.composer__hint {
  margin: 8px 0 0;
  color: var(--text-muted);
  font-size: 0.82rem;
}

.app-status {
  display: none;
  padding: 10px 12px;
  border-radius: 14px;
  color: var(--text);
  background: var(--surface-muted);
  border: 1px solid var(--border);
  font-size: 0.9rem;
}

.app-status--loading {
  display: block;
  color: var(--primary);
  background: rgba(109, 91, 255, 0.08);
  border-color: rgba(109, 91, 255, 0.16);
}

.app-status--success {
  display: block;
  color: #15803d;
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.14);
}

.app-status--error {
  display: block;
  color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.16);
}

.assistant-card {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.assistant-card__meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  opacity: 0.9;
}

.assistant-card ul {
  margin: 8px 0 0;
  padding-left: 18px;
}

.info-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.info-panel__hero {
  align-items: flex-start;
}

.muted {
  margin: 4px 0 0;
  color: var(--text-muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.stat-card {
  border-radius: 16px;
  padding: 12px;
}

.stat-card__label {
  margin: 0 0 6px;
  color: var(--text-muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.stat-card__value {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
}

.detail-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border-radius: 16px;
  background: var(--surface-muted);
}

.detail-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.9rem;
}

.detail-row span {
  color: var(--text-muted);
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  line-height: 1.5;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.timeline__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.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;
}

.auth-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: radial-gradient(circle at top left, rgba(109, 91, 255, 0.16), transparent 28%), rgba(250, 250, 252, 0.95);
  backdrop-filter: blur(16px);
  z-index: 60;
}

.auth-card {
  width: min(100%, 460px);
  padding: 28px;
  border-radius: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.auth-brand {
  margin-bottom: 8px;
}

.auth-card h2 {
  margin: 8px 0 8px;
  font-size: 1.5rem;
}

.auth-card__text {
  margin: 0 0 16px;
  color: var(--text-muted);
  line-height: 1.6;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 600;
}

.auth-field input {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
  color: var(--text);
}

.auth-submit {
  margin-top: 8px;
}

.auth-social {
  width: 100%;
  margin-top: 12px;
  justify-content: center;
}

.auth-status {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.auth-toggle {
  margin-top: 16px;
  background: transparent;
  color: var(--primary);
  font-weight: 700;
}

.workspace-editor-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.workspace-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.workspace-form__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.workspace-form select,
.workspace-form textarea {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
  color: var(--text);
  resize: vertical;
}

.workspace-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.workspace-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
}

.workspace-item strong {
  display: block;
  margin-bottom: 2px;
}

.workspace-item span {
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .dashboard {
    grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  }

  .info-panel {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .info-panel__hero {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  .sidebar {
    position: fixed;
    z-index: 40;
    inset: 0 auto 0 0;
    width: 270px;
    transform: translateX(-102%);
    transition: transform var(--transition);
  }

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

  .app-shell {
    grid-template-columns: 1fr;
  }

  .dashboard {
    grid-template-columns: 1fr;
    padding: 14px;
  }

  .inbox-panel {
    order: 2;
  }

  .conversation-panel {
    order: 1;
  }

  .info-panel {
    grid-template-columns: 1fr;
    order: 3;
  }
}

@media (max-width: 640px) {
  .panel {
    padding: 14px;
  }

  .panel__toolbar,
  .conversation-panel__header,
  .composer__form {
    flex-direction: column;
    align-items: stretch;
  }

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

  .workspace-form__row {
    grid-template-columns: 1fr;
  }

  .message-bubble {
    max-width: 100%;
  }
}