@import url("https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,400;14..32,500;14..32,600;14..32,700&family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;700&family=JetBrains+Mono:wght@400;500;600&display=swap");

/* === Aida AI Design System v2 =================================== */
/* Tokens first, then components, then utilities. Each is in its  */
/* own file under design/. Old class names in the rest of this    */
/* file continue to work via backward-compat aliases appended at   */
/* the bottom.                                                     */
@import url("./design/tokens.css");
@import url("./design/components.css");
@import url("./design/utilities.css");

:root {
  color-scheme: dark;
  --bg: #06111f;
  --bg-deep: #040b15;
  --surface: rgba(10, 19, 34, 0.82);
  --surface-raised: rgba(14, 26, 46, 0.9);
  --surface-strong: rgba(15, 28, 49, 0.96);
  --surface-soft: rgba(255, 255, 255, 0.04);
  --text: #f5f7fb;
  --muted: #96a8c3;
  --line: rgba(159, 180, 216, 0.14);
  --line-strong: rgba(177, 196, 229, 0.2);
  --accent: #7a95ff;
  --accent-strong: #b8c8ff;
  --accent-2: #4fe0c1;
  --accent-warm: #ff7a45;
  --danger: #ff9d8d;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.36);
  --shadow-soft: 0 18px 46px rgba(0, 0, 0, 0.2);
  --radius-panel: 30px;
  --radius-card: 24px;
  --radius-control: 18px;
  --backdrop: blur(20px);
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Inter", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(137, 168, 255, 0.24), transparent 26%),
    radial-gradient(circle at 88% 4%, rgba(103, 219, 197, 0.12), transparent 22%),
    radial-gradient(circle at 50% 100%, rgba(243, 201, 128, 0.06), transparent 24%),
    linear-gradient(180deg, #07111f 0%, #06101c 34%, #040b15 100%);
  background-attachment: fixed, fixed, fixed, fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.55), transparent 88%);
  opacity: 0.22;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

code {
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid rgba(243, 201, 128, 0.14);
  background: rgba(243, 201, 128, 0.08);
  color: #f7ebcc;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}

button,
.button {
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  background: transparent;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    background 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    color 0.18s ease;
}

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

button:disabled,
.button:disabled,
input:disabled,
textarea:disabled,
select:disabled {
  opacity: 0.58;
  cursor: not-allowed;
}

.button.primary,
button.primary,
.primary {
  color: #06101c;
  background:
    linear-gradient(135deg, var(--accent-warm), #ffe0a8 38%, #fff0d0 100%);
  box-shadow:
    0 16px 36px rgba(243, 201, 128, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.48);
}

.button.primary:hover,
button.primary:hover,
.primary:hover {
  box-shadow:
    0 22px 42px rgba(243, 201, 128, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.button.secondary,
button.secondary,
.secondary {
  border-color: var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.button.secondary:hover,
button.secondary:hover,
.secondary:hover {
  border-color: var(--line-strong);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.025)),
    rgba(7, 15, 29, 0.95);
  color: var(--text);
  padding: 14px 16px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 10px 24px rgba(0, 0, 0, 0.14);
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;
}

input::placeholder,
textarea::placeholder {
  color: rgba(150, 168, 195, 0.72);
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible,
button:focus-visible,
.button:focus-visible,
a:focus-visible {
  outline: none;
  border-color: rgba(243, 201, 128, 0.55);
  box-shadow:
    0 0 0 4px rgba(243, 201, 128, 0.12),
    0 16px 36px rgba(0, 0, 0, 0.18);
}

textarea {
  min-height: 130px;
  resize: vertical;
}

select {
  appearance: none;
  padding-right: 46px;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(243, 201, 128, 0.92) 50%),
    linear-gradient(135deg, rgba(243, 201, 128, 0.92) 50%, transparent 50%);
  background-position:
    calc(100% - 22px) calc(50% - 3px),
    calc(100% - 16px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

option,
optgroup {
  background: #091322;
  color: var(--text);
}

code,
pre,
kbd,
samp {
  font-family: "IBM Plex Mono", monospace;
}

.shell {
  max-width: 1360px;
  margin: 0 auto;
  padding: 40px 22px 68px;
}

.topbar,
.brand,
.layout,
.cards,
.hero-actions,
.button-row,
.stats,
.line,
.form-grid,
.table-row-head,
.chat-head,
.chat-session-head,
.chat-session-tools,
.chat-message-head,
.chat-message-head-main,
.metric-row,
.chat-compose-row,
.chat-compose-actions {
  display: flex;
  gap: 14px;
}

.topbar,
.line,
.table-row-head,
.chat-message-head,
.metric-row {
  align-items: center;
  justify-content: space-between;
}

.line {
  flex-wrap: wrap;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 12;
  margin: 0 0 18px;
  padding: 18px 0 10px;
  backdrop-filter: blur(18px);
}

.brand {
  align-items: center;
  min-width: 0;
}

.brand img {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  filter: drop-shadow(0 12px 24px rgba(137, 168, 255, 0.26));
}

.brand-copy {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.brand-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-subtitle,
.muted,
.panel p,
.panel li,
label {
  color: var(--muted);
}

.brand-subtitle {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.button-row {
  flex-wrap: wrap;
  align-items: center;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.topbar .button-row {
  justify-content: flex-end;
}

.topbar .button-row > * {
  flex: 0 0 auto;
}

.layout {
  align-items: flex-start;
}

.sidebar {
  width: 248px;
  position: sticky;
  top: 92px;
  padding: 20px;
}

.content {
  flex: 1;
  min-width: 0;
  display: grid;
  gap: var(--space-6);
  padding-top: 4px;
}

.panel,
.sidebar,
.nav a,
.stat,
.table-row,
.form-card,
.mini-card,
.metric-card,
.hero-card,
.chat-bubble,
.chat-session-item,
.empty-note {
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02)),
    var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: var(--backdrop);
}

.panel,
.sidebar,
.form-card {
  padding: 24px;
}

.panel {
  overflow: hidden;
}

.nav {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}

.nav a {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav a.active,
.nav a:hover {
  border-color: rgba(243, 201, 128, 0.26);
  background:
    linear-gradient(180deg, rgba(243, 201, 128, 0.18), rgba(137, 168, 255, 0.08));
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.35rem, 5vw, 3.45rem);
  line-height: 0.94;
}

h2 {
  font-size: 1.55rem;
}

h3 {
  font-size: 1.08rem;
}

.panel > h1,
.panel > h2,
.panel > h3,
.form-card > h1,
.form-card > h2,
.form-card > h3 {
  margin-top: var(--space-4);
}

.panel > p,
.form-card > p {
  margin: var(--space-4) 0 0;
  max-width: 74ch;
  line-height: 1.72;
}

.eyebrow,
.tag,
.badge {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  width: fit-content;
  max-width: 100%;
  min-width: 0;
  min-height: 34px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-warm), #fff0d4);
  box-shadow: 0 0 14px rgba(243, 201, 128, 0.42);
}

.tag,
.badge {
  color: #d8e0ef;
  font-size: 0.78rem;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.tag code,
.badge code,
.eyebrow code,
.panel p code,
.panel li code,
.mini-card code,
.notice code {
  max-width: 100%;
}

.cards,
.stats {
  flex-wrap: wrap;
}

.stats.compact .stat {
  flex: 1 1 180px;
}

.stat {
  flex: 1 1 210px;
  padding: 20px;
  border-radius: 26px;
}

.stat strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.9rem;
  letter-spacing: -0.04em;
}

.table {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.table-row {
  padding: var(--space-5);
  border-radius: 24px;
}

.table-row strong {
  display: block;
}

.table-row:last-child {
  margin-bottom: 0;
}

.stack {
  display: grid;
  gap: var(--space-3);
}

.stack.stack-fill {
  min-width: min(100%, 320px);
  flex: 1 1 320px;
}

.field {
  display: grid;
  gap: 10px;
  margin-top: var(--space-4);
}

.field.compact {
  margin-top: 0;
}

.form-grid {
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: 18px;
}

.form-grid .field {
  flex: 1 1 220px;
  margin-top: 0;
}

.field.span-all {
  grid-column: 1 / -1;
}

/* === Password visibility toggle ============================== */
.password-field {
  position: relative;
  display: flex;
  align-items: center;
}
.password-field > input {
  width: 100%;
  padding-right: 44px;
}
.password-toggle {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  border-radius: 8px;
  color: var(--color-text-muted, #98a2c2);
  cursor: pointer;
  font-size: 16px;
  transition: background 0.15s ease, color 0.15s ease;
}
.password-toggle:hover,
.password-toggle:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text, #f4f6ff);
  outline: none;
}

/* === No-JS fallback ========================================== */
.noscript-fallback {
  max-width: 720px;
  margin: 24px auto;
  padding: 16px 20px;
  border-radius: 12px;
  background: rgba(220, 80, 80, 0.12);
  border: 1px solid rgba(220, 80, 80, 0.35);
  color: #ffd9d9;
  font-size: 14px;
  line-height: 1.45;
  text-align: center;
}

.form-card {
  position: relative;
  max-width: 540px;
  margin: 48px auto;
  overflow: hidden;
}

.form-card::before,
.hero-card::before,
.panel::before,
.sidebar::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.08), transparent 32%);
  opacity: 0.55;
}

.panel,
.sidebar,
.form-card,
.hero-card {
  position: relative;
}

.notice {
  margin-top: var(--space-4);
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.025));
  color: var(--muted);
  line-height: 1.6;
}

.notice code {
  white-space: pre-wrap;
  word-break: break-word;
}

.button-row.top-gap,
.hero-actions.top-gap {
  margin-top: var(--space-4);
}

.top-gap {
  margin-top: var(--space-4);
}

.muted-note {
  margin-top: 8px;
}

.kicker {
  color: rgba(243, 201, 128, 0.92);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.summary-grid,
.insight-grid {
  display: grid;
  gap: 18px;
}

.site-footer {
  margin-top: 34px;
  padding: 18px 0 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.footer-links a {
  color: #d9e2f0;
}

.footer-links a:hover {
  color: #fff2cf;
}

.summary-grid {
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.95fr);
}

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

.hero-slab,
.section-stack,
.list-grid {
  display: grid;
  gap: 16px;
}

.hero-card {
  padding: 24px;
  border-radius: 30px;
  background:
    radial-gradient(circle at top right, rgba(243, 201, 128, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    var(--surface-raised);
}

.hero-card strong {
  display: block;
  margin-top: 10px;
  font-size: clamp(2.2rem, 4vw, 3rem);
  letter-spacing: -0.05em;
}

.hero-card p {
  margin: 14px 0 0;
}

.mini-card,
.metric-card {
  padding: var(--space-5);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.02)),
    rgba(9, 17, 31, 0.92);
}

.legal-layout {
  display: grid;
  gap: var(--space-6);
}

.legal-card {
  display: grid;
  gap: var(--space-4);
}

.legal-card section {
  display: grid;
  gap: 10px;
}

.legal-card h2 {
  font-size: 1.2rem;
}

.legal-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.legal-card p {
  margin: 0;
  max-width: none;
}

.support-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: var(--space-6);
}

.support-list,
.ticket-list {
  display: grid;
  gap: var(--space-4);
}

.ticket-list {
  margin-top: 18px;
}

.ticket-card {
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02)),
    rgba(8, 15, 28, 0.92);
  box-shadow: var(--shadow-soft);
}

.ticket-card p {
  margin: 12px 0 0;
  max-width: none;
}

.ticket-reply {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.ticket-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.mini-card strong,
.metric-card strong {
  display: block;
  margin-bottom: 10px;
}

.metric-row {
  align-items: baseline;
  flex-wrap: wrap;
}

.empty-note {
  padding: var(--space-5);
  border-style: dashed;
  border-width: 1px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.015)),
    rgba(7, 14, 27, 0.82);
}

.chat-shell {
  display: grid;
  gap: var(--space-5);
  min-height: 72vh;
  min-width: 0;
}

.chat-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.82fr) minmax(300px, 340px);
  gap: var(--space-6);
  align-items: start;
}

.chat-session-panel {
  position: sticky;
  top: 92px;
  display: grid;
  gap: var(--space-4);
  padding-top: 0;
  min-width: 0;
}

.chat-session-list {
  display: grid;
  gap: 10px;
  max-height: 68vh;
  overflow-y: auto;
  padding-right: 4px;
}

.chat-session-item {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018)),
    rgba(8, 14, 26, 0.88);
  box-shadow: var(--shadow-soft);
}

.chat-session-item.active {
  border-color: rgba(243, 201, 128, 0.28);
  background:
    linear-gradient(180deg, rgba(243, 201, 128, 0.14), rgba(137, 168, 255, 0.05)),
    rgba(10, 18, 33, 0.92);
}

.chat-session-head,
.chat-session-tools {
  align-items: center;
}

.chat-session-head {
  justify-content: space-between;
  gap: 10px;
}

.chat-session-main {
  display: block;
  min-width: 0;
  padding: 0;
  min-height: auto;
  justify-content: flex-start;
  border: 0;
  background: transparent;
  box-shadow: none;
  text-align: left;
}

.chat-session-main:hover {
  transform: none;
}

.chat-session-title {
  display: block;
  min-width: 0;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.45;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-session-time,
.chat-session-rename,
.chat-session-meta {
  color: var(--muted);
  font-size: 0.71rem;
}

.chat-session-meta {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-session-preview {
  display: none;
}

.chat-session-rename {
  min-height: auto;
  min-width: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 2px;
}

.chat-session-rename:hover,
.chat-session-rename:focus-visible {
  color: var(--text);
  transform: none;
  text-decoration-color: currentColor;
  box-shadow: none;
}

.compact-button {
  min-height: 38px;
  padding: 0 14px;
}

.chat-head {
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
}

.chat-summary {
  max-width: 840px;
}

.chat-stream {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 440px;
  max-height: 64vh;
  overflow-y: auto;
  padding: 8px 4px 8px 0;
  scroll-behavior: smooth;
}

.chat-empty {
  display: grid;
  gap: 8px;
  padding: 22px;
  border-radius: 24px;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    rgba(7, 14, 27, 0.84);
}

.chat-message {
  display: flex;
  padding-inline: 4px;
}

.chat-message.user {
  justify-content: flex-end;
}

.chat-message.assistant,
.chat-message.service {
  justify-content: flex-start;
}

.chat-bubble {
  width: min(84%, 980px);
  padding: 18px 18px 16px;
  border-radius: 26px;
}

.chat-message.user .chat-bubble {
  margin-left: 52px;
  background:
    linear-gradient(135deg, rgba(243, 201, 128, 0.24), rgba(243, 201, 128, 0.09)),
    rgba(19, 25, 36, 0.9);
  border-bottom-right-radius: 12px;
}

.chat-message.assistant .chat-bubble {
  margin-right: 52px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.022)),
    rgba(9, 16, 29, 0.92);
  border-bottom-left-radius: 12px;
}

.chat-message.assistant .chat-bubble.thinking {
  position: relative;
  overflow: hidden;
}

.chat-message.assistant .chat-bubble.thinking::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(243, 201, 128, 0.12) 50%, transparent 100%);
  transform: translateX(-100%);
  animation: thinking-sheen 1.8s linear infinite;
  pointer-events: none;
}

.chat-message.service .chat-bubble {
  background:
    linear-gradient(180deg, rgba(255, 157, 141, 0.14), rgba(255, 157, 141, 0.05)),
    rgba(20, 17, 20, 0.88);
  border-color: rgba(255, 157, 141, 0.18);
}

.chat-message-head {
  align-items: flex-start;
  margin-bottom: 10px;
}

.chat-message-head-main {
  flex-wrap: wrap;
  min-width: 0;
}

.chat-author {
  font-size: 0.9rem;
  font-weight: 700;
}

.chat-meta {
  color: var(--muted);
  font-size: 0.76rem;
  text-align: right;
}

.chat-copy-button {
  min-height: 30px;
  min-width: 30px;
  padding: 0 10px;
  border-radius: 999px;
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  box-shadow: none;
  font-size: 0.72rem;
}

.chat-copy-button:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.typing-dots {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
  vertical-align: middle;
}

.typing-dots span {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent-warm);
  opacity: 0.28;
  animation: typing-dot 1s ease-in-out infinite;
}

.typing-dots span:nth-child(2) {
  animation-delay: 0.16s;
}

.typing-dots span:nth-child(3) {
  animation-delay: 0.32s;
}

.chat-text {
  font-size: 0.89rem;
  line-height: 1.64;
  color: var(--text);
  word-break: break-word;
}

.chat-text > *:first-child {
  margin-top: 0;
}

.chat-text > *:last-child {
  margin-bottom: 0;
}

.chat-text p,
.chat-text ul,
.chat-text ol,
.chat-text pre,
.chat-text h1,
.chat-text h2,
.chat-text h3,
.chat-text blockquote,
.chat-text table {
  margin: 0 0 12px;
}

.chat-text h1,
.chat-text h2,
.chat-text h3 {
  line-height: 1.14;
  letter-spacing: -0.03em;
}

.chat-text h1 {
  font-size: 1.18rem;
}

.chat-text h2 {
  font-size: 1.06rem;
}

.chat-text h3 {
  font-size: 0.97rem;
}

.chat-text ul,
.chat-text ol {
  padding-left: 20px;
}

.chat-text li + li {
  margin-top: 6px;
}

.chat-text code {
  padding: 3px 7px;
  border-radius: 8px;
  border: 1px solid rgba(243, 201, 128, 0.16);
  background: rgba(243, 201, 128, 0.08);
  font-size: 0.94em;
}

.chat-text pre {
  overflow-x: auto;
  padding: 16px 18px;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(3, 8, 16, 0.98), rgba(8, 14, 24, 0.98));
  border: 1px solid rgba(243, 201, 128, 0.14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.chat-text pre code {
  padding: 0;
  border: 0;
  background: transparent;
  color: #eef6ff;
  white-space: pre;
  font-size: 0.9rem;
  line-height: 1.6;
}

.chat-text a {
  color: var(--accent-warm);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.chat-text blockquote {
  padding-left: 14px;
  border-left: 2px solid rgba(243, 201, 128, 0.34);
  color: #c6d2e6;
}

.chat-text table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 14px;
  overflow: hidden;
  font-size: 0.89rem;
}

.chat-text th,
.chat-text td {
  padding: 8px 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
  vertical-align: top;
}

.chat-text thead th {
  background: rgba(255, 255, 255, 0.06);
}

.chat-media-grid {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.chat-media-card {
  margin: 0;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.chat-media-card img,
.chat-media-card video {
  display: block;
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  background: rgba(4, 10, 19, 0.82);
}

.chat-composer {
  display: grid;
  gap: 14px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.chat-input-field {
  gap: 10px;
}

.chat-input-shell {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018)),
    rgba(7, 14, 26, 0.94);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 16px 40px rgba(0, 0, 0, 0.2);
}

.chat-input-shell:focus-within {
  border-color: rgba(243, 201, 128, 0.38);
  box-shadow:
    0 0 0 4px rgba(243, 201, 128, 0.08),
    0 18px 44px rgba(0, 0, 0, 0.24);
}

.chat-composer textarea {
  min-height: 126px;
  max-height: 240px;
  border: 0;
  background: transparent;
  box-shadow: none;
  padding-right: 236px;
  resize: none;
}

.compact-tool-button {
  position: absolute;
  bottom: 14px;
  width: 38px;
  min-width: 38px;
  min-height: 38px;
  height: 38px;
  padding: 0;
  border-radius: 999px;
  justify-content: center;
}

.reasoning-select {
  position: absolute;
  right: 142px;
  bottom: 14px;
  width: 112px;
  min-height: 38px;
  padding: 0 38px 0 12px;
  border-radius: 999px;
  font-size: 0.8rem;
}

.voice-button {
  right: 98px;
}

.attach-button {
  right: 54px;
}

.action-button {
  right: 12px;
}

.voice-glyph,
.attach-glyph,
.action-glyph {
  display: inline-block;
  width: 16px;
  height: 16px;
  position: relative;
}

.voice-glyph::before,
.voice-glyph::after,
.attach-glyph::before,
.attach-glyph::after,
.action-glyph::before,
.action-glyph::after {
  content: "";
  position: absolute;
}

.voice-glyph::before {
  left: 4px;
  top: 1px;
  width: 8px;
  height: 10px;
  border: 2px solid currentColor;
  border-bottom-left-radius: 7px;
  border-bottom-right-radius: 7px;
  border-top-left-radius: 7px;
  border-top-right-radius: 7px;
}

.voice-glyph::after {
  left: 1px;
  top: 10px;
  width: 14px;
  height: 5px;
  border: 2px solid currentColor;
  border-top: 0;
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
}

.attach-glyph::before {
  content: "📎";
  left: 50%;
  top: 50%;
  width: auto;
  height: auto;
  font-size: 16px;
  line-height: 1;
  transform: translate(-50%, -56%);
}

.attach-glyph::after {
  display: none;
}

.action-glyph::before {
  left: 3px;
  top: 2px;
  width: 10px;
  height: 10px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
}

.action-glyph::after {
  left: 2px;
  top: 7px;
  width: 12px;
  height: 2px;
  background: currentColor;
}

.action-button.is-stop {
  background: linear-gradient(135deg, rgba(248, 113, 113, 0.92), rgba(239, 68, 68, 0.9));
  color: #fff5f5;
  box-shadow: 0 12px 28px rgba(127, 29, 29, 0.28);
}

.action-button.is-stop .action-glyph::before {
  left: 2px;
  top: 2px;
  width: 12px;
  height: 12px;
  border: 0;
  border-radius: 3px;
  background: currentColor;
  transform: none;
}

.action-button.is-stop .action-glyph::after {
  display: none;
}

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

.chat-attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.045);
  font-size: 0.78rem;
}

.chat-attachment-chip button {
  min-height: auto;
  min-width: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  box-shadow: none;
}

.chat-attachment-chip button:hover {
  color: var(--text);
  transform: none;
}

.chat-compose-row {
  gap: var(--space-4);
  align-items: stretch;
  justify-content: space-between;
  flex-wrap: wrap;
}

.chat-compose-row .notice {
  margin-top: 0;
  flex: 1 1 320px;
}

.chat-compose-actions {
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.chat-session-list::-webkit-scrollbar,
.chat-stream::-webkit-scrollbar {
  width: 8px;
}

.chat-session-list::-webkit-scrollbar-thumb,
.chat-stream::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

@keyframes thinking-sheen {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

@keyframes typing-dot {
  0%,
  100% {
    opacity: 0.24;
    transform: translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateY(-2px);
  }
}

@media (max-width: 1220px) {
  .layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    position: static;
    top: 0;
  }

  .summary-grid,
  .insight-grid,
  .chat-workspace,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .chat-session-panel {
    position: static;
    order: -1;
  }
}

@media (max-width: 900px) {
  .shell {
    padding: 24px 16px 40px;
  }

  .topbar {
    position: static;
    padding-top: 0;
  }

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

  .topbar,
  .chat-head,
  .chat-compose-row {
    flex-direction: column;
    align-items: stretch;
  }

  .topbar .button-row {
    width: 100%;
  }

  .topbar .button-row,
  .chat-compose-actions {
    justify-content: flex-start;
  }

  .topbar .button-row {
    gap: 8px;
  }

  .chat-composer textarea {
    padding-right: 18px;
    padding-bottom: 92px;
  }

  .reasoning-select {
    right: 140px;
    bottom: 12px;
    width: calc(100% - 152px);
    max-width: 180px;
  }

  .voice-button {
    right: 96px;
  }

  .attach-button {
    right: 52px;
  }

  .action-button {
    right: 10px;
  }
}

@media (max-width: 720px) {
  h1 {
    font-size: clamp(2rem, 10vw, 2.65rem);
  }

  .panel,
  .sidebar,
  .form-card {
    padding: 18px;
    border-radius: 24px;
  }

  .content {
    gap: 18px;
  }

  .sidebar {
    padding: 16px;
  }

  .nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 0;
  }

  .nav a {
    min-height: 44px;
    padding: 10px 12px;
    font-size: 0.92rem;
  }

  .topbar {
    gap: 12px;
    margin-bottom: 16px;
  }

  .topbar .button-row > * {
    flex: 1 1 calc(50% - 4px);
    min-width: 0;
  }

  .form-grid .field {
    flex: 1 1 100%;
  }

  .form-card {
    margin: 24px auto;
  }

  .form-card .button-row > * {
    flex: 1 1 100%;
  }

  .footer-links {
    gap: 8px 12px;
  }

  .stats.compact .stat,
  .stat {
    flex: 1 1 100%;
    padding: 18px;
  }

  .table-row-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .table-row {
    padding: 18px;
  }

  .table-row .tag-row {
    gap: 10px;
  }

  .chat-session-panel {
    order: 1;
    gap: 12px;
  }

  .chat-session-list {
    max-height: 40vh;
  }

  .chat-stream {
    min-height: 320px;
    max-height: none;
  }

  .chat-text table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .chat-composer textarea {
    min-height: 148px;
    padding-bottom: 136px;
  }

  .reasoning-select {
    left: 12px;
    right: 12px;
    bottom: 58px;
    width: auto;
    max-width: none;
  }

  .voice-button {
    right: 96px;
    bottom: 12px;
  }

  .attach-button {
    right: 52px;
    bottom: 12px;
  }

  .action-button {
    right: 10px;
    bottom: 12px;
  }

  .chat-bubble {
    width: min(92%, 980px);
    padding: 16px;
  }

  .chat-message.user .chat-bubble {
    margin-left: 10px;
  }

  .chat-message.assistant .chat-bubble {
    margin-right: 10px;
  }
}

@media (max-width: 480px) {
  .shell {
    padding: 18px 12px 28px;
  }

  button,
  .button {
    min-height: 44px;
    padding: 0 14px;
    font-size: 0.94rem;
  }

  input,
  textarea,
  select {
    padding: 12px 14px;
  }

  h1 {
    font-size: clamp(1.72rem, 11vw, 2.2rem);
  }

  h2 {
    font-size: 1.28rem;
  }

  .panel,
  .sidebar,
  .form-card {
    padding: 14px;
    border-radius: 20px;
  }

  .brand img {
    width: 40px;
    height: 40px;
  }

  .brand-subtitle {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
  }

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

  .line {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .button-row {
    gap: 10px;
  }

  .button-row > * {
    flex: 1 1 100%;
  }

  .topbar .button-row > * {
    flex-basis: 100%;
  }

  .mini-card,
  .metric-card,
  .table-row,
  .empty-note,
  .ticket-card,
  .stat {
    padding: 14px;
  }

  .tag-row {
    gap: 8px;
  }

  .eyebrow,
  .tag,
  .badge {
    min-height: 30px;
    padding: 7px 10px;
    gap: 6px;
    font-size: 0.74rem;
  }

  .notice {
    padding: 12px 14px;
  }

  .table-row .tag,
  .table-row .badge {
    width: 100%;
    justify-content: flex-start;
    border-radius: 18px;
  }

  .table-row-head .button,
  .table-row-head button {
    width: 100%;
  }

  .form-card {
    margin: 14px auto;
  }

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

  .chat-session-list {
    max-height: 34vh;
  }

  .chat-compose-actions > * {
    flex: 1 1 100%;
  }

  .chat-composer textarea {
    min-height: 168px;
    padding: 14px 14px 166px;
  }

  .reasoning-select {
    left: 12px;
    right: 12px;
    bottom: 104px;
    width: auto;
  }

  .voice-button {
    right: 100px;
    bottom: 58px;
  }

  .attach-button {
    right: 56px;
    bottom: 58px;
  }

  .action-button {
    right: 12px;
    bottom: 58px;
  }

  .chat-bubble {
    width: 100%;
    padding: 14px 12px 12px;
  }
}

@media (max-width: 390px) {
  .shell {
    padding: 16px 10px 24px;
  }

  h1 {
    font-size: clamp(1.58rem, 10.5vw, 2rem);
  }

  .topbar {
    gap: 10px;
    margin-bottom: 14px;
  }

  .panel,
  .sidebar,
  .form-card,
  .mini-card,
  .metric-card,
  .table-row,
  .empty-note,
  .ticket-card,
  .stat {
    padding: 12px;
    border-radius: 18px;
  }

  .tag,
  .badge,
  .eyebrow {
    font-size: 0.72rem;
    padding: 6px 9px;
  }

  .chat-composer textarea {
    min-height: 160px;
    padding: 12px 12px 162px;
  }

  .reasoning-select {
    left: 10px;
    right: 10px;
    bottom: 102px;
  }

  .voice-button {
    right: 96px;
    bottom: 56px;
  }

  .attach-button {
    right: 53px;
    bottom: 56px;
  }

  .action-button {
    right: 10px;
    bottom: 56px;
  }
}

@media (max-width: 360px) {
  .brand-title {
    font-size: 0.98rem;
  }

  .brand-subtitle {
    font-size: 0.64rem;
    letter-spacing: 0.06em;
  }

  .topbar .button-row > *,
  .button-row > * {
    font-size: 0.9rem;
  }

  .chat-composer textarea {
    min-height: 156px;
    padding-bottom: 158px;
  }
}

/* ============================================================
   Animation utilities & landing page enhancements
   ============================================================ */

@keyframes fade-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in-scale {
  from { opacity: 0; transform: scale(0.96) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(255, 196, 86, 0.18), 0 16px 36px rgba(0, 0, 0, 0.22); }
  50% { box-shadow: 0 0 36px rgba(255, 196, 86, 0.32), 0 20px 48px rgba(0, 0, 0, 0.28); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes aurora-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes border-glow {
  0%, 100% { border-color: rgba(255, 196, 86, 0.22); }
  50% { border-color: rgba(255, 196, 86, 0.48); }
}

@keyframes counter-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }
.animate-delay-4 { transition-delay: 0.4s; }
.animate-delay-5 { transition-delay: 0.5s; }

.glow-border {
  animation: border-glow 3s ease-in-out infinite;
}

.float-anim {
  animation: float 4s ease-in-out infinite;
}

.shimmer-text {
  background: linear-gradient(
    90deg,
    var(--text) 0%,
    var(--accent-strong) 25%,
    var(--accent-2) 50%,
    var(--accent-strong) 75%,
    var(--text) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

.pulse-glow {
  animation: glow-pulse 2.5s ease-in-out infinite;
}

/* Landing-specific overrides */
.landing-aurora-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 600px 400px at 15% 20%, rgba(137, 168, 255, 0.28), transparent),
    radial-gradient(ellipse 500px 350px at 80% 15%, rgba(103, 219, 197, 0.18), transparent),
    radial-gradient(ellipse 400px 300px at 50% 80%, rgba(255, 196, 86, 0.1), transparent);
  background-size: 200% 200%;
  animation: aurora-shift 12s ease-in-out infinite;
}

.landing-hero-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

.landing-hero-glow--accent {
  background: var(--accent);
  top: -100px;
  left: -100px;
  animation: float 8s ease-in-out infinite;
}

.landing-hero-glow--teal {
  background: var(--accent-2);
  top: -50px;
  right: -150px;
  animation: float 10s ease-in-out infinite reverse;
}

.landing-tag-animated {
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
  background-origin: border-box;
  background-clip: padding-box, border-box;
  background-image:
    linear-gradient(var(--surface), var(--surface)),
    linear-gradient(135deg, var(--accent), var(--accent-2), var(--accent-warm), var(--accent));
  background-size: 100% 100%, 300% 300%;
  animation: aurora-shift 6s ease-in-out infinite;
}

.landing-stat-number {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  font-family: "Space Grotesk", sans-serif;
  animation: counter-up 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.landing-section-divider {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
  margin: 8px 0;
}

.landing-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: linear-gradient(135deg, rgba(137, 168, 255, 0.15), rgba(103, 219, 197, 0.1));
  border: 1px solid var(--line);
  margin-bottom: 12px;
}

.landing-cta-glow {
  position: relative;
  overflow: hidden;
}

.landing-cta-glow::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--accent-warm), var(--accent-2), var(--accent));
  background-size: 300% 300%;
  animation: aurora-shift 4s ease-in-out infinite;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.landing-cta-glow:hover::before {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll,
  .float-anim,
  .shimmer-text,
  .pulse-glow,
  .glow-border,
  .landing-tag-animated,
  .landing-aurora-bg,
  .landing-hero-glow {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* =========================================================================
 * Backward-compat aliases (v1 -> v2)
 * Old class names and tokens used in the v1 codebase still resolve to
 * the v2 tokens. Each alias is one line so it is easy to find and delete
 * once a page is fully migrated to v2.
 * ========================================================================= */

/* === Token aliases =================================================== */
:root {
  --bg: var(--color-bg-canvas);
  --bg-deep: var(--color-bg-deep);
  --surface: var(--color-bg-elevated);
  --surface-raised: var(--color-bg-raised);
  --surface-strong: var(--color-bg-overlay);
  --surface-soft: var(--color-bg-subtle);
  --text: var(--color-text-primary);
  --muted: var(--color-text-muted);
  --line: var(--color-border-subtle);
  --line-strong: var(--color-border-default);
  --accent: var(--color-accent-primary);
  --accent-strong: var(--color-accent-hover);
  --accent-2: var(--color-accent-secondary);
  --accent-warm: var(--color-accent-warm);
  --danger: var(--color-danger);
  --shadow: var(--shadow-lg);
  --shadow-soft: var(--shadow-md);
  --radius-panel: var(--radius-2xl);
  --radius-card: var(--radius-xl);
  --radius-control: var(--radius-md);
  --backdrop: var(--backdrop-blur);
}

/* === Class aliases =================================================== */
/* .tag -> .badge (same shape) */
.tag {
  display: inline-flex; align-items: center; gap: var(--space-1);
  height: 26px; padding: 0 var(--space-3);
  font-size: var(--font-size-xs); font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.tag-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* .button -> .btn */
.button {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--space-2); height: 44px; padding: 0 var(--space-5);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1; text-decoration: none; white-space: nowrap;
  cursor: pointer; user-select: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: background var(--duration-fast) var(--easing-standard),
              color var(--duration-fast) var(--easing-standard),
              border-color var(--duration-fast) var(--easing-standard);
}
.button.primary {
  background: linear-gradient(135deg, var(--color-accent-primary), #9aaeff);
  color: var(--color-accent-on);
  box-shadow: 0 8px 24px rgba(122, 149, 255, 0.32);
}
.button.primary:hover { background: linear-gradient(135deg, var(--color-accent-hover), #aebeff); }
.button.secondary {
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
  border-color: var(--color-border-default);
}
.button.secondary:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-strong);
}

/* .button-row -> utility */
.button-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* .panel / .sidebar / .hero-card -> .card shape */
.panel, .sidebar, .hero-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  backdrop-filter: var(--backdrop-blur);
  box-shadow: var(--shadow-md);
}
.hero-card { padding: var(--space-12) var(--space-8); }
.panel, .sidebar { padding: var(--space-6); }

/* .muted -> .u-text-muted */
.muted { color: var(--color-text-muted); }

/* .top-gap -> .u-mt-6 */
.top-gap { margin-top: var(--space-6); }