:root {
  --ai-bg: #101114;
  --ai-surface: #17181c;
  --ai-surface-raised: #1f2025;
  --ai-surface-soft: #25262c;
  --ai-input: #0d0e11;
  --ai-border: #303139;
  --ai-border-strong: #464854;
  --ai-text: #f5f6f8;
  --ai-muted: #a5a8b2;
  --ai-faint: #737681;
  --ai-accent: #60a5fa;
  --ai-accent-strong: #3b82f6;
  --ai-accent-soft: rgba(59, 130, 246, 0.14);
  --ai-success: #34d399;
  --ai-success-soft: rgba(52, 211, 153, 0.12);
  --ai-warning: #fbbf24;
  --ai-warning-soft: rgba(251, 191, 36, 0.12);
  --ai-danger: #fb7185;
  --ai-danger-soft: rgba(251, 113, 133, 0.12);
  --ai-overlay: rgba(0, 0, 0, 0.62);
  --ai-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
  --ai-radius-sm: 8px;
  --ai-radius: 12px;
  --ai-radius-lg: 18px;
}

body[data-theme="light"] {
  --ai-bg: #ffffff;
  --ai-surface: #ffffff;
  --ai-surface-raised: #ffffff;
  --ai-surface-soft: #f4f4f4;
  --ai-input: #ffffff;
  --ai-border: #111111;
  --ai-border-strong: #000000;
  --ai-text: #000000;
  --ai-muted: #111111;
  --ai-faint: #333333;
  --ai-accent: #000000;
  --ai-accent-strong: #000000;
  --ai-accent-soft: rgba(0, 0, 0, 0.08);
  --ai-success: #000000;
  --ai-success-soft: rgba(0, 0, 0, 0.06);
  --ai-warning: #000000;
  --ai-warning-soft: rgba(0, 0, 0, 0.06);
  --ai-danger: #000000;
  --ai-danger-soft: rgba(0, 0, 0, 0.06);
  --ai-overlay: rgba(0, 0, 0, 0.36);
  --ai-shadow: 0 16px 42px rgba(0, 0, 0, 0.18);
}

.ai-header-menu {
  position: relative;
  flex: 0 0 auto;
}

.ai-header-btn {
  min-height: 34px;
  padding: 7px 11px;
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius-sm);
  background: var(--ai-surface-raised);
  color: var(--ai-text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  white-space: nowrap;
  font: inherit;
  font-size: 12px;
  font-weight: 650;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.ai-header-btn:hover,
.ai-header-btn[aria-expanded="true"] {
  background: var(--ai-accent-soft);
  border-color: var(--ai-accent);
  color: var(--ai-accent);
}

.ai-header-btn:active {
  transform: translateY(1px);
}

.ai-launcher-status {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ai-faint);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ai-faint) 15%, transparent);
}

.ai-launcher-status.ready {
  background: var(--ai-success);
  box-shadow: 0 0 0 3px var(--ai-success-soft);
}

.ai-launcher-popover {
  position: absolute;
  z-index: 1550;
  top: calc(100% + 10px);
  right: 0;
  width: min(350px, calc(100vw - 24px));
  padding: 10px;
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius);
  background: var(--ai-surface);
  color: var(--ai-text);
  box-shadow: var(--ai-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px) scale(0.98);
  transform-origin: top right;
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
}

.ai-launcher-popover.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.ai-launcher-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 7px 11px;
}

.ai-launcher-head strong {
  display: block;
  font-size: 14px;
}

.ai-launcher-head small {
  display: block;
  margin-top: 3px;
  color: var(--ai-muted);
  font-size: 11px;
  font-weight: 400;
}

.ai-launcher-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}

.ai-launcher-item {
  min-width: 0;
  padding: 11px;
  border: 1px solid var(--ai-border);
  border-radius: 10px;
  background: var(--ai-surface-raised);
  color: var(--ai-text);
  text-align: left;
  cursor: pointer;
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 9px;
  align-items: center;
  font: inherit;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.ai-launcher-item:hover {
  border-color: var(--ai-accent);
  background: var(--ai-accent-soft);
  transform: translateY(-1px);
}

.ai-launcher-item > i {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--ai-accent-soft);
  color: var(--ai-accent);
}

.ai-launcher-item strong,
.ai-launcher-item small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ai-launcher-item strong {
  font-size: 12px;
}

.ai-launcher-item small {
  margin-top: 3px;
  color: var(--ai-muted);
  font-size: 10px;
  line-height: 1.35;
}

.ai-launcher-settings {
  width: 30px;
  height: 30px;
  border: 1px solid var(--ai-border);
  border-radius: 8px;
  background: transparent;
  color: var(--ai-muted);
  cursor: pointer;
}

.ai-launcher-settings:hover {
  color: var(--ai-text);
  border-color: var(--ai-border-strong);
}

.ai-drawer-scrim {
  position: fixed;
  z-index: 1590;
  inset: 0;
  background: var(--ai-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s;
}

.ai-drawer-scrim.open {
  opacity: 1;
  visibility: visible;
}

.ai-assistant-drawer {
  position: fixed;
  z-index: 1600;
  top: 0;
  right: 0;
  width: min(480px, 96vw);
  height: 100dvh;
  background: var(--ai-bg);
  color: var(--ai-text);
  border-left: 1px solid var(--ai-border);
  box-shadow: var(--ai-shadow);
  transform: translateX(102%);
  transition: transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.ai-assistant-drawer.open {
  transform: translateX(0);
}

.ai-drawer-header {
  min-height: 62px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--ai-border);
  background: var(--ai-surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.ai-drawer-title {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.ai-drawer-title-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  background: linear-gradient(135deg, var(--ai-accent-strong), #7c3aed);
  color: #fff;
}

.ai-drawer-header h2,
.ai-modal-title {
  margin: 0;
  color: var(--ai-text);
  font-size: 16px;
  line-height: 1.2;
}

.ai-drawer-header small {
  display: block;
  margin-top: 3px;
  color: var(--ai-muted);
  font-size: 11px;
}

.ai-icon-btn {
  width: 34px;
  height: 34px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--ai-muted);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 15px;
}

.ai-icon-btn:hover {
  color: var(--ai-text);
  background: var(--ai-surface-soft);
  border-color: var(--ai-border);
}

.ai-context-card {
  margin: 12px 14px 0;
  padding: 11px 12px;
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius);
  background: var(--ai-surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.ai-context-main {
  min-width: 0;
}

.ai-context-main small {
  display: block;
  color: var(--ai-muted);
  font-size: 10px;
  margin-bottom: 3px;
}

.ai-context-main strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
}

.ai-provider-chip {
  flex: 0 0 auto;
  padding: 5px 8px;
  border-radius: 999px;
  border: 1px solid var(--ai-border);
  color: var(--ai-muted);
  background: var(--ai-surface-raised);
  font-size: 10px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.ai-provider-chip.ready {
  border-color: color-mix(in srgb, var(--ai-success) 45%, var(--ai-border));
  color: var(--ai-success);
  background: var(--ai-success-soft);
}

.ai-provider-chip.warning {
  border-color: color-mix(in srgb, var(--ai-warning) 45%, var(--ai-border));
  color: var(--ai-warning);
  background: var(--ai-warning-soft);
}

.ai-exam-lock {
  margin: 10px 14px 0;
  padding: 10px 11px;
  border-radius: 10px;
  color: var(--ai-warning);
  background: var(--ai-warning-soft);
  border: 1px solid color-mix(in srgb, var(--ai-warning) 35%, var(--ai-border));
  display: none;
  font-size: 11px;
  line-height: 1.5;
}

.ai-action-area {
  padding: 12px 14px;
  border-bottom: 1px solid var(--ai-border);
}

.ai-section-label {
  margin: 0 0 8px;
  color: var(--ai-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ai-quick-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
}

.ai-action-btn,
.ai-primary-btn,
.ai-secondary-btn {
  min-height: 36px;
  border-radius: var(--ai-radius-sm);
  border: 1px solid var(--ai-border);
  padding: 8px 10px;
  cursor: pointer;
  color: var(--ai-text);
  background: var(--ai-surface-raised);
  font: inherit;
  font-size: 11px;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.ai-action-btn {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 8px 4px;
}

.ai-action-btn i {
  color: var(--ai-accent);
}

.ai-action-btn:hover,
.ai-secondary-btn:hover {
  border-color: var(--ai-accent);
  background: var(--ai-accent-soft);
}

.ai-action-btn:active,
.ai-secondary-btn:active,
.ai-primary-btn:active {
  transform: translateY(1px);
}

.ai-hint-rail {
  margin-top: 9px;
  display: grid;
  grid-template-columns: auto repeat(3, 1fr);
  align-items: center;
  gap: 6px;
}

.ai-hint-label {
  color: var(--ai-muted);
  font-size: 10px;
  padding-right: 2px;
}

.ai-hint-btn {
  min-height: 30px;
  padding: 5px 7px;
  flex-direction: row;
  font-size: 10px;
}

.ai-hint-btn::before {
  content: attr(data-step);
  width: 17px;
  height: 17px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--ai-surface-soft);
  color: var(--ai-muted);
  font-size: 9px;
}

.ai-primary-btn {
  background: var(--ai-accent-strong);
  border-color: var(--ai-accent-strong);
  color: #fff;
  font-weight: 700;
}

.ai-primary-btn:hover {
  background: color-mix(in srgb, var(--ai-accent-strong) 86%, #000);
}

.ai-primary-btn:disabled,
.ai-action-btn:disabled,
.ai-secondary-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.ai-chat-log {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  scroll-behavior: smooth;
}

.ai-empty-state {
  margin: auto 0;
  padding: 24px 18px;
  border: 1px dashed var(--ai-border-strong);
  border-radius: var(--ai-radius-lg);
  text-align: center;
  background: var(--ai-surface);
}

.ai-empty-state > i {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  margin: 0 auto 12px;
  color: var(--ai-accent);
  background: var(--ai-accent-soft);
  font-size: 19px;
}

.ai-empty-state h3 {
  margin: 0 0 6px;
  color: var(--ai-text);
  font-size: 14px;
}

.ai-empty-state p {
  margin: 0;
  color: var(--ai-muted);
  font-size: 11px;
  line-height: 1.6;
}

.ai-starter-prompts {
  margin-top: 13px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
}

.ai-starter-prompt {
  padding: 6px 9px;
  border: 1px solid var(--ai-border);
  border-radius: 999px;
  background: var(--ai-surface-raised);
  color: var(--ai-muted);
  cursor: pointer;
  font: inherit;
  font-size: 10px;
}

.ai-starter-prompt:hover {
  color: var(--ai-accent);
  border-color: var(--ai-accent);
}

.ai-message-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 94%;
}

.ai-message-wrap.user {
  align-self: flex-end;
  align-items: flex-end;
}

.ai-message-wrap.assistant {
  align-self: flex-start;
  align-items: flex-start;
}

.ai-message-meta {
  padding: 0 3px;
  color: var(--ai-faint);
  font-size: 9px;
}

.ai-message {
  width: 100%;
  border-radius: 13px;
  padding: 11px 12px;
  line-height: 1.65;
  overflow-wrap: anywhere;
  color: var(--ai-text);
  font-size: 12px;
}

.ai-message.user {
  background: var(--ai-accent-strong);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.ai-message.assistant {
  background: var(--ai-surface);
  border: 1px solid var(--ai-border);
  border-bottom-left-radius: 4px;
}

.ai-message.error {
  border-color: color-mix(in srgb, var(--ai-danger) 40%, var(--ai-border));
  background: var(--ai-danger-soft);
  color: var(--ai-danger);
}

.ai-message p {
  margin: 0 0 8px;
}

.ai-message p:last-child {
  margin-bottom: 0;
}

.ai-message ul,
.ai-message ol {
  margin: 7px 0 8px 20px;
}

.ai-message code:not(pre code) {
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--ai-surface-soft);
  color: var(--ai-accent);
  font-family: "Fira Code", Consolas, monospace;
  font-size: 0.93em;
}

.ai-code-block {
  margin: 9px 0 2px;
  border: 1px solid var(--ai-border);
  border-radius: 9px;
  overflow: hidden;
  background: var(--ai-input);
}

.ai-code-head {
  min-height: 30px;
  padding: 5px 8px 5px 10px;
  border-bottom: 1px solid var(--ai-border);
  color: var(--ai-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 9px;
  text-transform: uppercase;
}

.ai-copy-btn {
  border: 0;
  background: transparent;
  color: var(--ai-muted);
  cursor: pointer;
  font: inherit;
  font-size: 9px;
}

.ai-copy-btn:hover {
  color: var(--ai-accent);
}

.ai-code-block pre {
  margin: 0;
  max-height: 280px;
  padding: 11px;
  overflow: auto;
  white-space: pre;
}

.ai-code-block code {
  color: var(--ai-text);
  font-family: "Fira Code", Consolas, monospace;
  font-size: 11px;
}

.ai-loading-dots {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  min-height: 18px;
}

.ai-loading-dots i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ai-muted);
  animation: aiPulse 1s infinite ease-in-out;
}

.ai-loading-dots i:nth-child(2) { animation-delay: 0.15s; }
.ai-loading-dots i:nth-child(3) { animation-delay: 0.3s; }

@keyframes aiPulse {
  0%, 60%, 100% { opacity: 0.35; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

.ai-chat-compose {
  padding: 12px 14px 14px;
  border-top: 1px solid var(--ai-border);
  background: var(--ai-surface);
}

.ai-compose-box {
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius);
  background: var(--ai-input);
  overflow: hidden;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.ai-compose-box:focus-within {
  border-color: var(--ai-accent);
  box-shadow: 0 0 0 3px var(--ai-accent-soft);
}

.ai-chat-compose textarea {
  display: block;
  width: 100%;
  min-height: 60px;
  max-height: 150px;
  resize: none;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ai-text);
  padding: 11px 12px 5px;
  font: inherit;
  font-size: 12px;
  line-height: 1.5;
}

.ai-chat-compose textarea::placeholder,
.ai-field input::placeholder,
.ai-field textarea::placeholder {
  color: var(--ai-faint);
}

.ai-compose-footer {
  padding: 5px 6px 6px 11px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.ai-compose-footer small {
  color: var(--ai-faint);
  font-size: 9px;
}

.ai-send-btn {
  min-width: 72px;
  min-height: 32px;
  padding: 6px 11px;
}

.ai-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1700;
  background: var(--ai-overlay);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 22px;
  backdrop-filter: blur(3px);
}

.ai-modal-backdrop.open {
  display: flex;
}

.ai-modal {
  width: min(1080px, 96vw);
  max-height: 92dvh;
  overflow: auto;
  border-radius: var(--ai-radius-lg);
  background: var(--ai-bg);
  color: var(--ai-text);
  border: 1px solid var(--ai-border);
  box-shadow: var(--ai-shadow);
}

.ai-modal.small {
  width: min(620px, 96vw);
}

.ai-modal.generator {
  width: min(860px, 96vw);
}

.ai-modal-head {
  position: sticky;
  top: 0;
  z-index: 2;
  min-height: 62px;
  background: color-mix(in srgb, var(--ai-surface) 93%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--ai-border);
  padding: 13px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.ai-modal-subtitle {
  margin-top: 3px;
  color: var(--ai-muted);
  font-size: 10px;
}

.ai-modal-body {
  padding: 18px;
}

.ai-dashboard-hero {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.ai-mastery-overview {
  min-height: 178px;
  padding: 16px;
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius);
  background: linear-gradient(145deg, var(--ai-surface), var(--ai-surface-raised));
  display: grid;
  place-items: center;
  text-align: center;
}

.ai-mastery-ring {
  --value: 0;
  width: 104px;
  height: 104px;
  border-radius: 50%;
  background: conic-gradient(var(--ai-accent-strong) calc(var(--value) * 1%), var(--ai-surface-soft) 0);
  display: grid;
  place-items: center;
  position: relative;
}

.ai-mastery-ring::before {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 50%;
  background: var(--ai-surface);
}

.ai-mastery-ring strong {
  position: relative;
  font-size: 25px;
}

.ai-mastery-overview span {
  color: var(--ai-muted);
  font-size: 10px;
}

.ai-dashboard-summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.ai-stat-card,
.ai-dashboard-card,
.ai-generated-card,
.ai-subject-card {
  padding: 14px;
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius);
  background: var(--ai-surface);
}

.ai-stat-card {
  min-height: 84px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.ai-stat-card span {
  color: var(--ai-muted);
  font-size: 10px;
}

.ai-stat-card strong {
  display: block;
  margin-top: 6px;
  font-size: 22px;
  color: var(--ai-text);
}

.ai-subject-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(130px, 1fr));
  gap: 10px;
}

.ai-subject-card {
  min-width: 0;
}

.ai-subject-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.ai-subject-head b {
  font-size: 12px;
}

.ai-subject-head strong {
  color: var(--ai-accent);
  font-size: 17px;
}

.ai-subject-card small {
  display: block;
  margin-top: 7px;
  color: var(--ai-muted);
  font-size: 9px;
}

.ai-mastery-bar {
  height: 6px;
  border-radius: 999px;
  margin-top: 10px;
  background: var(--ai-surface-soft);
  overflow: hidden;
}

.ai-mastery-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--ai-accent-strong), #8b5cf6);
}

.ai-dashboard-columns {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 12px;
  margin-top: 12px;
}

.ai-dashboard-card h3 {
  margin: 0 0 12px;
  font-size: 13px;
}

.ai-trend-card {
  margin-top: 12px;
}

.ai-trend-chart {
  width: 100%;
  height: 150px;
  display: block;
  overflow: visible;
}

.ai-trend-grid {
  stroke: var(--ai-border);
  stroke-width: 1;
}

.ai-trend-area {
  fill: color-mix(in srgb, var(--ai-accent) 12%, transparent);
}

.ai-trend-line {
  fill: none;
  stroke: var(--ai-accent);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ai-trend-dot {
  fill: var(--ai-surface);
  stroke: var(--ai-accent);
  stroke-width: 2;
}

.ai-trend-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 5px;
  color: var(--ai-faint);
  font-size: 9px;
}

.ai-plan-row,
.ai-weak-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--ai-border);
}

.ai-plan-row:last-child,
.ai-weak-row:last-child {
  border-bottom: 0;
}

.ai-plan-copy {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 9px;
}

.ai-plan-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  color: var(--ai-accent);
  background: var(--ai-accent-soft);
  font-size: 11px;
}

.ai-plan-copy span {
  font-size: 11px;
  line-height: 1.45;
}

.ai-plan-row.done {
  opacity: 0.58;
}

.ai-plan-row.done .ai-plan-copy span {
  text-decoration: line-through;
}

.ai-weak-row span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ai-muted);
  font-size: 11px;
}

.ai-weak-row b {
  flex: 0 0 auto;
  color: var(--ai-danger);
  font-size: 10px;
}

.ai-empty-inline {
  padding: 18px 10px;
  color: var(--ai-muted);
  text-align: center;
  font-size: 11px;
}

.ai-field {
  margin-bottom: 14px;
}

.ai-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.ai-field label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  color: var(--ai-text);
  font-size: 11px;
  font-weight: 650;
}

.ai-field label small {
  color: var(--ai-muted);
  font-size: 9px;
  font-weight: 400;
}

.ai-field input,
.ai-field select,
.ai-field textarea {
  width: 100%;
  min-height: 40px;
  box-sizing: border-box;
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius-sm);
  background: var(--ai-input);
  color: var(--ai-text);
  padding: 9px 10px;
  outline: 0;
  font: inherit;
  font-size: 12px;
}

.ai-field input:focus,
.ai-field select:focus,
.ai-field textarea:focus {
  border-color: var(--ai-accent);
  box-shadow: 0 0 0 3px var(--ai-accent-soft);
}

.ai-provider-status {
  padding: 10px 11px;
  border: 1px solid var(--ai-border);
  border-radius: 9px;
  background: var(--ai-surface-raised);
  color: var(--ai-muted);
  font-size: 10px;
  line-height: 1.55;
}

.ai-provider-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
}

.ai-provider-item {
  padding: 9px;
  border: 1px solid var(--ai-border);
  border-radius: 9px;
  background: var(--ai-surface-raised);
}

.ai-provider-item strong {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  text-transform: capitalize;
}

.ai-provider-item small {
  display: block;
  margin-top: 4px;
  color: var(--ai-muted);
  font-size: 9px;
}

.ai-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ai-danger);
}

.ai-status-dot.ready {
  background: var(--ai-success);
}

.ai-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 17px;
}

.ai-generator-intro {
  margin-bottom: 15px;
  padding: 12px;
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius);
  background: var(--ai-accent-soft);
  color: var(--ai-muted);
  font-size: 11px;
  line-height: 1.55;
}

.ai-generator-intro strong {
  color: var(--ai-text);
}

.ai-generation-state {
  margin-top: 14px;
  padding: 20px;
  border: 1px dashed var(--ai-border-strong);
  border-radius: var(--ai-radius);
  text-align: center;
  color: var(--ai-muted);
  font-size: 11px;
}

.ai-generation-state i {
  display: block;
  margin-bottom: 9px;
  color: var(--ai-accent);
  font-size: 20px;
}

.ai-generated-card {
  margin-top: 15px;
}

.ai-generated-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.ai-generated-meta span {
  padding: 4px 7px;
  border-radius: 999px;
  background: var(--ai-surface-soft);
  color: var(--ai-muted);
  font-size: 9px;
}

.ai-generated-card h3 {
  margin: 0 0 11px;
  color: var(--ai-text);
  font-size: 15px;
}

.ai-generated-card p {
  color: var(--ai-muted);
  font-size: 12px;
  line-height: 1.65;
}

.ai-question-options {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}

.ai-question-option {
  text-align: left;
}

.ai-question-option.correct {
  border-color: var(--ai-success);
  background: var(--ai-success-soft);
  color: var(--ai-success);
}

.ai-question-option.incorrect {
  border-color: var(--ai-danger);
  background: var(--ai-danger-soft);
  color: var(--ai-danger);
}

.ai-code-preview {
  white-space: pre;
  overflow: auto;
  max-height: 300px;
  padding: 13px;
  border-radius: 9px;
  background: var(--ai-input);
  color: var(--ai-text);
  border: 1px solid var(--ai-border);
  font-family: "Fira Code", Consolas, monospace;
  font-size: 11px;
}

.ai-toast-region {
  position: fixed;
  z-index: 1900;
  right: 18px;
  bottom: 18px;
  width: min(360px, calc(100vw - 28px));
  display: grid;
  gap: 8px;
  pointer-events: none;
}

.ai-toast {
  padding: 11px 12px;
  border: 1px solid var(--ai-border);
  border-radius: 10px;
  background: var(--ai-surface);
  color: var(--ai-text);
  box-shadow: var(--ai-shadow);
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 11px;
  line-height: 1.5;
  animation: aiToastIn 0.2s ease;
}

.ai-toast.success i { color: var(--ai-success); }
.ai-toast.error i { color: var(--ai-danger); }
.ai-toast.info i { color: var(--ai-accent); }

@keyframes aiToastIn {
  from { opacity: 0; transform: translateY(8px); }
}

.ai-header-btn:focus-visible,
.ai-launcher-item:focus-visible,
.ai-action-btn:focus-visible,
.ai-primary-btn:focus-visible,
.ai-secondary-btn:focus-visible,
.ai-icon-btn:focus-visible,
.ai-question-option:focus-visible {
  outline: 2px solid var(--ai-accent);
  outline-offset: 2px;
}

@media (max-width: 1450px) {
  .ai-header-btn .ai-header-label {
    display: inline;
    font-size: 0;
  }

  .ai-header-btn .ai-header-label::after {
    content: "";
    font-size: 10px;
  }

  .ai-header-btn {
    min-width: 46px;
    padding: 6px 8px;
  }
}

@media (max-width: 900px) {
  .ai-dashboard-hero,
  .ai-dashboard-columns {
    grid-template-columns: 1fr;
  }

  .ai-dashboard-summary {
    grid-template-columns: repeat(3, 1fr);
  }

  .ai-subject-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .ai-modal-backdrop {
    padding: 0;
    align-items: flex-end;
  }

  .ai-modal,
  .ai-modal.small,
  .ai-modal.generator {
    width: 100%;
    max-height: 94dvh;
    border-radius: 18px 18px 0 0;
  }

  .ai-drawer-scrim {
    display: none;
  }

  .ai-assistant-drawer {
    width: 100vw;
    border-left: 0;
  }

  .ai-quick-actions {
    grid-template-columns: repeat(4, 1fr);
  }

  .ai-dashboard-summary,
  .ai-field-row {
    grid-template-columns: 1fr;
  }

  .ai-provider-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ai-assistant-drawer,
  .ai-drawer-scrim,
  .ai-launcher-popover,
  .ai-toast,
  .ai-loading-dots i {
    transition: none;
    animation: none;
  }
}