:root {
  color-scheme: light;
  --bg: #f8fafc;
  --bg-alt: #edf3f9;
  --surface: rgba(255, 255, 255, 0.94);
  --surface-strong: #ffffff;
  --surface-soft: rgba(255, 255, 255, 0.78);
  --line: rgba(20, 28, 38, 0.07);
  --line-strong: rgba(20, 28, 38, 0.1);
  --text: #14202b;
  --muted: #5f6b7a;
  --muted-strong: #7b8796;
  --accent: #0f766e;
  --accent-2: #1e88e5;
  --accent-soft: rgba(15, 118, 110, 0.1);
  --warn: #cc5c31;
  --shadow: 0 12px 36px rgba(25, 38, 54, 0.06);
  --shadow-soft: 0 8px 18px rgba(25, 38, 54, 0.04);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 13px;
  --radius-sm: 10px;
  --font-display: "Avenir Next", "Avenir", "Helvetica Neue", "Segoe UI", sans-serif;
  --font-body: "Avenir Next", "Avenir", "Helvetica Neue", "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", "SF Mono", "Menlo", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 20% 18%, rgba(15, 118, 110, 0.08), transparent 0 24%),
    radial-gradient(circle at 82% 12%, rgba(30, 136, 229, 0.07), transparent 0 16%),
    radial-gradient(circle at 70% 84%, rgba(216, 161, 90, 0.05), transparent 0 18%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(20, 28, 38, 0.012) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 28, 38, 0.012) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.06), transparent 82%);
}

body[data-view="auth"] {
  overflow: auto;
}

body[data-view="auth"]::before {
  background-image:
    linear-gradient(rgba(20, 28, 38, 0.01) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 28, 38, 0.01) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.045), transparent 86%);
}

body[data-view="auth"] .orb {
  opacity: 0.12;
  filter: blur(40px);
}

body[data-view="auth"] .mesh {
  background:
    linear-gradient(180deg, rgba(248, 250, 252, 0.06), rgba(248, 250, 252, 0.22)),
    radial-gradient(circle at top, transparent, rgba(248, 250, 252, 0.12) 80%);
}

body[data-view="app"] {
  overflow-x: hidden;
}

body[data-modal="settings"],
body[data-modal="alert"],
body[data-modal="billing"] {
  overflow: hidden;
}

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

button {
  border: 0;
  cursor: pointer;
}

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

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

.orb {
  position: fixed;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  filter: blur(32px);
  opacity: 0.18;
  pointer-events: none;
}

.orb-left {
  top: -10rem;
  left: -10rem;
  background: radial-gradient(circle, rgba(15, 118, 110, 0.38), transparent 68%);
}

.orb-right {
  right: -10rem;
  top: 10rem;
  background: radial-gradient(circle, rgba(30, 136, 229, 0.34), transparent 68%);
}

.mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(248, 250, 252, 0.02), rgba(248, 250, 252, 0.18)),
    radial-gradient(circle at top, transparent, rgba(248, 250, 252, 0.18) 80%);
}

.glass-card {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}

.auth-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.35rem, 2.5vw, 2rem);
  justify-items: center;
  align-content: center;
  min-height: 100dvh;
  padding: clamp(1.25rem, 4vw, 3rem);
  max-width: 42rem;
  margin: 0 auto;
}

.auth-story {
  display: grid;
  gap: 1rem;
  justify-items: center;
  justify-self: center;
  text-align: center;
  max-width: 38rem;
  padding: clamp(0.4rem, 2vw, 1.5rem) 0;
}

.auth-story-head {
  max-width: 38rem;
}

.eyebrow {
  margin: 0 0 0.55rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.auth-story h1,
.panel-intro h1,
.app-bar h2 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.auth-story h1 {
  max-width: 15ch;
  font-size: clamp(3.3rem, 5.2vw, 5.5rem);
  text-wrap: balance;
}

.panel-intro h1 {
  max-width: 11ch;
  font-size: clamp(1.8rem, 2.9vw, 3rem);
  color: #111b18;
}

.app-bar h2 {
  font-size: 1.35rem;
}

.lede {
  margin: 0.9rem 0 0;
  margin-inline: auto;
  max-width: 34ch;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.58;
}

.lede.compact {
  max-width: 52ch;
}

.auth-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 0.15rem;
}

.metric-card {
  display: grid;
  gap: 0.55rem;
  padding: 1rem 1rem 1.05rem;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-soft);
  min-height: 8.5rem;
}

.metric-index {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.metric-card h3 {
  margin: 0;
  color: var(--text);
  font-size: 1.02rem;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.metric-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.preview-canvas {
  width: min(100%, 60rem);
  border-radius: 30px;
  padding: 1rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.9));
  border: 1px solid var(--line);
  box-shadow: 0 24px 72px rgba(25, 38, 54, 0.1);
  display: grid;
  gap: 0.9rem;
}

.preview-canvas-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.micro-label {
  margin: 0 0 0.18rem;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.preview-canvas-head strong {
  display: block;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

.preview-live {
  align-self: flex-start;
  padding: 0.36rem 0.72rem;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.1);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 750;
  white-space: nowrap;
}

.preview-canvas-body {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 1rem;
  align-items: stretch;
}

.preview-rail {
  display: grid;
  gap: 0.55rem;
  padding: 0.45rem;
  border-radius: 24px;
  background: rgba(248, 250, 252, 0.92);
  border: 1px solid var(--line);
}

.rail-item {
  padding: 0.8rem 0.9rem;
  border-radius: 16px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.rail-item.is-active {
  background: rgba(255, 255, 255, 0.98);
  color: var(--text);
  box-shadow: 0 8px 18px rgba(25, 38, 54, 0.06);
}

.preview-main {
  display: grid;
  gap: 0.85rem;
  padding: 0.15rem 0;
  align-content: start;
}

.preview-feature {
  display: grid;
  gap: 0.6rem;
  padding: 1rem;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.preview-feature-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.preview-feature h2 {
  margin: 0;
  max-width: 22ch;
  font-size: 1.08rem;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.preview-feature p {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
}

.preview-chat {
  display: grid;
  gap: 0.65rem;
  padding-top: 0.05rem;
}

.preview-message {
  max-width: 92%;
  padding: 0.82rem 0.95rem;
  border-radius: 18px;
  line-height: 1.55;
  font-size: 0.93rem;
  word-break: break-word;
  box-shadow: 0 8px 18px rgba(25, 38, 54, 0.06);
}

.preview-message.incoming {
  justify-self: start;
  background: rgba(255, 255, 255, 0.95);
  color: var(--text);
  border: 1px solid var(--line);
  border-bottom-left-radius: 8px;
}

.preview-message.outgoing {
  justify-self: end;
  background: linear-gradient(180deg, #128078, var(--accent));
  color: #fff;
  border-bottom-right-radius: 8px;
}

.auth-card {
  justify-self: center;
  align-self: center;
  display: grid;
  gap: 0.85rem;
  width: min(100%, 30rem);
  border-radius: 28px;
  padding: 1.1rem;
  box-shadow: 0 26px 72px rgba(25, 38, 54, 0.12);
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field span {
  color: var(--muted-strong);
  font-size: 0.82rem;
  font-weight: 700;
}

.input-row {
  display: flex;
  gap: 0.65rem;
  align-items: stretch;
}

.auth-swap {
  position: relative;
  min-height: 5.85rem;
}

.auth-stage-panel {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: start;
  gap: 0.35rem;
  transition:
    opacity 240ms ease,
    transform 320ms ease,
    filter 240ms ease;
}

.auth-email-panel {
  opacity: 1;
  transform: translateY(0);
  filter: none;
  pointer-events: auto;
}

.auth-code-panel {
  opacity: 0;
  transform: translateY(14px) scale(0.985);
  filter: blur(4px);
  pointer-events: none;
}

.auth-card[data-auth-stage="code"] .auth-email-panel {
  opacity: 0;
  transform: translateY(-10px) scale(0.985);
  filter: blur(4px);
  pointer-events: none;
}

.auth-card[data-auth-stage="code"] .auth-code-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: none;
  pointer-events: auto;
}

.auth-input-surface {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
  padding: 0.35rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 24px rgba(25, 38, 54, 0.05);
}

.auth-input-surface input {
  min-width: 0;
  border: 0;
  padding: 0.76rem 0.85rem;
  background: transparent;
  box-shadow: none;
}

.auth-input-surface input:focus {
  box-shadow: none;
  background: transparent;
}

.otp-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.45rem;
}

.otp-digit {
  height: 3.35rem;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--text);
  font-size: 1.16rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.03em;
  box-shadow: 0 10px 24px rgba(25, 38, 54, 0.05);
  opacity: 0;
  transform: translateY(10px) scale(0.94);
  transition:
    opacity 240ms ease,
    transform 320ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.auth-card[data-auth-stage="code"] .otp-digit {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.auth-card[data-auth-stage="code"] .otp-digit:nth-child(1) {
  transition-delay: 20ms;
}

.auth-card[data-auth-stage="code"] .otp-digit:nth-child(2) {
  transition-delay: 40ms;
}

.auth-card[data-auth-stage="code"] .otp-digit:nth-child(3) {
  transition-delay: 60ms;
}

.auth-card[data-auth-stage="code"] .otp-digit:nth-child(4) {
  transition-delay: 80ms;
}

.auth-card[data-auth-stage="code"] .otp-digit:nth-child(5) {
  transition-delay: 100ms;
}

.auth-card[data-auth-stage="code"] .otp-digit:nth-child(6) {
  transition-delay: 120ms;
}

.otp-digit::placeholder {
  color: rgba(95, 107, 122, 0.4);
}

.otp-digit:hover {
  border-color: rgba(15, 118, 110, 0.18);
}

.otp-digit:focus {
  outline: none;
  border-color: rgba(15, 118, 110, 0.34);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.1), 0 12px 28px rgba(25, 38, 54, 0.08);
  background: rgba(255, 255, 255, 1);
}

.auth-submit-button {
  position: relative;
  min-height: 3.35rem;
  overflow: hidden;
  margin-top: 0.1rem;
}

.button-label {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  transition:
    opacity 220ms ease,
    transform 260ms ease;
}

.button-label-login {
  opacity: 1;
  transform: translateY(0);
}

.button-label-verify {
  opacity: 0;
  transform: translateY(120%);
}

.auth-card[data-auth-stage="code"] .button-label-login {
  opacity: 0;
  transform: translateY(-120%);
}

.auth-card[data-auth-stage="code"] .button-label-verify {
  opacity: 1;
  transform: translateY(0);
}

.auth-card[data-auth-stage="code"] .auth-submit-button {
  box-shadow: 0 14px 26px rgba(15, 118, 110, 0.2);
}

.auth-card[data-auth-stage="code"] .auth-submit-button:hover,
.auth-card[data-auth-stage="code"] .auth-submit-button:focus-visible {
  transform: translateY(-1px);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  padding: 0.8rem 0.9rem;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease,
    background 160ms ease;
}

.field input::placeholder,
.field textarea::placeholder {
  color: rgba(95, 107, 122, 0.7);
}

.field textarea {
  min-height: 5rem;
  resize: vertical;
  line-height: 1.55;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: rgba(15, 118, 110, 0.34);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.1);
  background: rgba(255, 255, 255, 0.98);
}

.primary-button,
.ghost-button,
.text-button,
.tab-button,
.subtab-button,
.menu-button,
.menu-item {
  border-radius: 999px;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    box-shadow 160ms ease;
}

.primary-button {
  padding: 0.8rem 1rem;
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: linear-gradient(180deg, #128078, var(--accent));
  box-shadow: 0 10px 20px rgba(15, 118, 110, 0.16);
  white-space: nowrap;
}

.primary-button.small {
  padding: 0.68rem 0.9rem;
  font-size: 0.9rem;
}

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

.ghost-button {
  padding: 0.78rem 0.95rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line-strong);
}

.ghost-button:hover,
.ghost-button:focus-visible {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.94);
  border-color: rgba(15, 118, 110, 0.22);
}

.ghost-button.danger {
  color: #8c2f14;
  border-color: rgba(204, 92, 49, 0.22);
}

.ghost-button.danger:hover,
.ghost-button.danger:focus-visible {
  background: rgba(204, 92, 49, 0.08);
  border-color: rgba(204, 92, 49, 0.34);
}

.ghost-button.small {
  padding: 0.58rem 0.8rem;
  font-size: 0.86rem;
}

.text-button {
  padding: 0;
  color: var(--muted-strong);
  background: transparent;
  border: 0;
  font-size: 0.88rem;
  text-align: left;
}

.text-button:hover,
.text-button:focus-visible {
  color: var(--text);
}

.auth-actions {
  display: none;
  gap: 0.9rem;
  justify-content: center;
  align-items: center;
  margin-top: 0.75rem;
}

.auth-card[data-auth-stage="code"] .auth-actions {
  display: flex;
}

.auth-message {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
  min-height: 1.5em;
  text-align: center;
}

.demo-note {
  margin: 0.85rem 0 0;
  color: var(--accent);
  font-size: 0.92rem;
}

.auth-foot {
  margin-top: 1.2rem;
  padding: 1rem 1rem 0.2rem;
  border-top: 1px solid var(--line);
}

.auth-foot span {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.auth-foot p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.6;
}

.app-shell {
  position: relative;
  z-index: 1;
  --shell-pad: 0.85rem;
  display: grid;
  gap: 0.85rem;
  align-content: start;
  max-width: 1540px;
  margin: 0 auto;
  padding: var(--shell-pad);
  min-height: 100vh;
  transition:
    filter 280ms ease,
    transform 280ms ease;
  will-change: filter, transform;
}

body[data-modal="billing"] .app-shell {
  filter: none;
  transform: none;
}

.app-bar {
  position: sticky;
  top: 0.7rem;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "brand actions"
    "tabs actions";
  gap: 0.8rem 1rem;
  align-content: start;
  align-items: center;
  margin-inline: calc(var(--shell-pad) * -1);
  padding: 0.45rem var(--shell-pad) 0.95rem;
  background:
    linear-gradient(180deg, rgba(248, 250, 252, 0.92) 0%, rgba(248, 250, 252, 0.66) 100%);
  border-bottom: 1px solid rgba(20, 28, 38, 0.08);
  border-radius: 0;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.8) inset,
    0 12px 24px rgba(25, 38, 54, 0.04);
  backdrop-filter: blur(14px) saturate(145%);
}

.brand-block {
  grid-area: brand;
  display: flex;
  align-items: center;
  min-width: 0;
  padding-top: 0.05rem;
}

.brand-logo {
  display: block;
  height: clamp(5rem, 7.8vw, 6.2rem);
  width: auto;
}

.tab-strip {
  grid-area: tabs;
  display: inline-flex;
  gap: 0.3rem;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-self: start;
  justify-self: start;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.3rem;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(20, 28, 38, 0.07);
  border-radius: 999px;
  box-shadow: 0 8px 18px rgba(25, 38, 54, 0.04);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.tab-strip::-webkit-scrollbar {
  display: none;
}

.tab-button,
.subtab-button {
  flex: 0 0 auto;
  padding: 0.72rem 1rem;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font-weight: 650;
  font-size: 0.94rem;
  border-radius: 999px;
  white-space: nowrap;
}

.tab-button.is-active,
.subtab-button.is-active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(20, 28, 38, 0.08);
  box-shadow: 0 8px 16px rgba(25, 38, 54, 0.06);
}

.topbar-actions {
  grid-area: actions;
  display: flex;
  justify-content: flex-end;
  align-items: flex-start;
  gap: 0.55rem;
  flex-wrap: wrap;
  align-self: start;
  padding-top: 0.05rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(20, 28, 38, 0.07);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 650;
  box-shadow: 0 6px 14px rgba(25, 38, 54, 0.04);
}

.status-dot {
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.1);
}

.status-pill.is-loading {
  color: var(--muted);
}

.status-pill.is-warn {
  color: var(--warn);
  background: rgba(204, 92, 49, 0.08);
  border-color: rgba(204, 92, 49, 0.18);
}

.billing-page {
  width: min(100%, 76rem);
  justify-self: center;
  gap: 1rem;
}

.billing-page-header {
  display: flex;
  align-items: center;
}

.billing-help-strip {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
  padding: 1rem 1.15rem;
  border-radius: 24px;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.93), rgba(248, 251, 252, 0.9)),
    linear-gradient(135deg, rgba(15, 118, 110, 0.05), rgba(30, 136, 229, 0.03));
  border: 1px solid rgba(20, 28, 38, 0.08);
  box-shadow: 0 18px 48px rgba(16, 38, 40, 0.08);
}

.billing-help-copy {
  display: grid;
  gap: 0.35rem;
  align-content: start;
  min-width: 0;
}

.billing-help-summary {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.6;
}

.billing-help-actions {
  align-self: start;
}

.billing-help-button {
  display: inline-grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: 999px;
  border: 1px solid rgba(15, 118, 110, 0.18);
  background: rgba(15, 118, 110, 0.08);
  color: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.billing-help-button:hover,
.billing-help-button:focus-visible {
  transform: translateY(-1px);
  background: rgba(15, 118, 110, 0.12);
  border-color: rgba(15, 118, 110, 0.24);
  box-shadow: 0 10px 24px rgba(15, 118, 110, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.billing-help-popover {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 2vw, 1.5rem);
  background: rgba(20, 28, 38, 0);
  opacity: 0;
  pointer-events: none;
  isolation: isolate;
  backdrop-filter: blur(0px) saturate(100%);
  transition:
    opacity 220ms ease,
    background-color 320ms ease,
    backdrop-filter 420ms ease;
  will-change: opacity, background-color, backdrop-filter;
}

.billing-help-popover.is-open {
  background: rgba(20, 28, 38, 0.3);
  opacity: 1;
  pointer-events: auto;
  backdrop-filter: blur(24px) saturate(140%);
}

.billing-help-dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 34rem);
  max-height: calc(100svh - 2rem);
  overflow: auto;
  display: grid;
  gap: 0.85rem;
  padding: 1rem 1rem 0.95rem;
  border-radius: 24px;
  color: #eef9f8;
  background:
    linear-gradient(180deg, rgba(16, 40, 38, 0.98), rgba(21, 55, 65, 0.98)),
    linear-gradient(135deg, rgba(15, 118, 110, 0.2), rgba(30, 136, 229, 0.12));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 28px 70px rgba(16, 38, 40, 0.28);
  opacity: 0;
  transform: translateY(18px) scale(0.98);
  transition:
    transform 360ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 220ms ease,
    box-shadow 320ms ease;
  will-change: transform, opacity;
}

.billing-help-popover.is-open .billing-help-dialog {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.billing-help-popover.is-hidden {
  display: none;
}

.billing-help-popover-head {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.billing-help-popover-head strong {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.billing-help-close {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  cursor: pointer;
  font-size: 1.15rem;
  line-height: 1;
  transition: background 160ms ease, transform 160ms ease;
}

.billing-help-close:hover,
.billing-help-close:focus-visible {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.16);
}

.billing-help-body {
  display: grid;
  gap: 0.7rem;
}

.billing-help-body p {
  margin: 0;
  color: rgba(238, 249, 248, 0.82);
  font-size: 0.94rem;
  line-height: 1.55;
}

.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;
}

.billing-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.95fr);
  gap: 1.1rem 1.3rem;
  align-items: start;
  padding: 1.5rem;
  border-radius: 36px;
  color: #eef9f8;
  background:
    radial-gradient(circle at top right, rgba(84, 172, 160, 0.26), transparent 30%),
    linear-gradient(135deg, #102826 0%, #153741 52%, #143b56 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 28px 80px rgba(16, 38, 40, 0.22);
}

.billing-hero-copy {
  display: grid;
  gap: 0.7rem;
  align-content: start;
  max-width: 46rem;
}

.billing-hero-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.3rem);
  letter-spacing: -0.05em;
  line-height: 0.98;
  text-wrap: balance;
  max-width: 11ch;
}

.billing-hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  align-self: stretch;
}

.billing-metric {
  display: grid;
  gap: 0.38rem;
  min-height: 8.75rem;
  align-content: space-between;
  padding: 1rem 1.02rem 1.05rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.09);
  backdrop-filter: blur(10px);
}

.billing-metric span {
  color: rgba(238, 249, 248, 0.72);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.billing-metric strong {
  font-size: clamp(0.88rem, 1.2vw, 1.16rem);
  letter-spacing: -0.03em;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.billing-metric.is-date strong {
  font-size: clamp(0.82rem, 1.08vw, 0.98rem);
  line-height: 1.12;
  max-width: 14ch;
}

.billing-mix {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.25rem;
  min-height: 0.85rem;
  padding: 0.2rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.billing-status-banner {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1.05rem 1.15rem;
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(248, 251, 252, 0.88)),
    linear-gradient(135deg, rgba(15, 118, 110, 0.06), rgba(30, 136, 229, 0.04));
  border: 1px solid rgba(20, 28, 38, 0.08);
  box-shadow: 0 20px 50px rgba(16, 38, 40, 0.08);
}

.billing-status-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  width: 7rem;
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.08), transparent 72%);
  pointer-events: none;
}

.billing-status-banner.is-warn {
  border-color: rgba(204, 92, 49, 0.16);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 248, 244, 0.94)),
    linear-gradient(135deg, rgba(204, 92, 49, 0.06), rgba(15, 118, 110, 0.03));
}

.billing-status-banner.is-loading {
  opacity: 0.96;
}

.billing-status-copy {
  display: grid;
  gap: 0.25rem;
  min-width: 0;
  position: relative;
  z-index: 1;
}

.billing-status-message {
  margin: 0;
  color: var(--text);
  font-size: 1.02rem;
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.35;
}

.billing-status-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.55;
  max-width: 52ch;
}

.billing-refresh-button {
  justify-self: end;
  white-space: nowrap;
  min-width: 10.75rem;
  position: relative;
  z-index: 1;
}

.billing-mix-segment {
  min-width: 0.25rem;
  border-radius: 999px;
  background: var(--billing-model-color, var(--accent));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.billing-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  align-items: start;
}

.billing-card {
  align-content: start;
  min-width: 0;
  padding: 1.05rem;
}

.billing-model-list,
.billing-history-list {
  display: grid;
  gap: 0.4rem;
}

.billing-tool-list {
  display: grid;
  gap: 0.4rem;
}

.billing-tool {
  border-top: 1px solid var(--line);
  padding-top: 0.65rem;
}

.billing-tool:first-child {
  border-top: 0;
  padding-top: 0;
}

.billing-tool summary {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) auto auto auto;
  gap: 0.8rem;
  align-items: center;
  cursor: pointer;
  list-style: none;
  padding: 0.2rem 0;
}

.billing-tool summary::-webkit-details-marker {
  display: none;
}

.billing-tool-label {
  display: grid;
  gap: 0.18rem;
  min-width: 0;
}

.billing-tool-label strong {
  font-size: 1.02rem;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.billing-tool-label span {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
  max-width: 32ch;
}

.billing-tool-stat {
  display: grid;
  gap: 0.18rem;
  text-align: right;
}

.billing-tool-stat span {
  color: var(--muted-strong);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.billing-tool-stat strong {
  font-size: 0.95rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.billing-tool-body {
  display: grid;
  gap: 0.65rem;
  padding: 0.7rem 0.15rem 0;
}

.billing-model-row {
  display: grid;
  grid-template-columns: 0.72rem minmax(0, 1fr) auto;
  gap: 0.85rem;
  align-items: start;
  padding: 0.92rem 0;
  border-top: 1px solid var(--line);
}

.billing-model-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.billing-model-swatch {
  width: 0.72rem;
  height: 100%;
  min-height: 2.6rem;
  border-radius: 999px;
  background: var(--billing-model-color, var(--accent));
  box-shadow: 0 8px 18px rgba(25, 38, 54, 0.08);
}

.billing-model-copy {
  display: grid;
  gap: 0.25rem;
  min-width: 0;
}

.billing-model-copy strong {
  font-size: 1rem;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.billing-model-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
  max-width: 40ch;
}

.billing-model-stats {
  display: grid;
  gap: 0.2rem;
  text-align: right;
}

.billing-model-stats strong {
  font-size: 1rem;
  font-weight: 750;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.billing-model-stats span {
  color: var(--muted-strong);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.billing-month {
  border-top: 1px solid var(--line);
  padding-top: 0.65rem;
}

.billing-month:first-child {
  border-top: 0;
  padding-top: 0;
}

.billing-month summary {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) auto auto auto;
  gap: 0.8rem;
  align-items: center;
  cursor: pointer;
  list-style: none;
  padding: 0.2rem 0;
}

.billing-month summary::-webkit-details-marker {
  display: none;
}

.billing-month-label {
  display: grid;
  gap: 0.18rem;
  min-width: 0;
}

.billing-month-label strong {
  font-size: 1.02rem;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.billing-month-label span {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
  max-width: 32ch;
}

.billing-month-stat {
  display: grid;
  gap: 0.18rem;
  text-align: right;
}

.billing-month-stat span {
  color: var(--muted-strong);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.billing-month-stat strong {
  font-size: 0.95rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.billing-month-caret {
  color: var(--muted-strong);
  font-size: 0.95rem;
  transition: transform 160ms ease;
}

.billing-month[open] .billing-month-caret {
  transform: rotate(90deg);
}

.billing-month-body {
  display: grid;
  gap: 0.6rem;
  padding: 0.7rem 0.15rem 0;
}

.billing-month-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.billing-empty {
  margin: 0;
  padding: 1rem 1.05rem;
  border-radius: 22px;
  border: 1px dashed rgba(20, 28, 38, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(250, 251, 252, 0.78));
}

.billing-empty h3 {
  font-size: 1rem;
}

.billing-empty p {
  max-width: 42ch;
}

.billing-empty.is-warn {
  border-color: rgba(204, 92, 49, 0.22);
  background: linear-gradient(180deg, rgba(255, 250, 246, 0.95), rgba(255, 246, 241, 0.9));
}

.menu-wrap {
  position: relative;
}

.menu-button {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.56rem 0.78rem;
  min-width: 11rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(20, 28, 38, 0.07);
  color: var(--text);
  text-align: left;
  border-radius: 999px;
  box-shadow: 0 8px 18px rgba(25, 38, 54, 0.04);
}

.menu-button:hover,
.menu-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.22);
  box-shadow: 0 12px 24px rgba(25, 38, 54, 0.08);
}

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.62rem;
  height: 1.62rem;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.15), rgba(30, 136, 229, 0.12));
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  flex: 0 0 auto;
}

.menu-copy {
  display: grid;
  gap: 0.1rem;
  min-width: 0;
}

.menu-label {
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.menu-copy strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.84rem;
  font-weight: 750;
}

.menu-caret {
  color: var(--muted);
  margin-left: auto;
}

.menu-popover {
  position: absolute;
  right: 0;
  top: calc(100% + 0.65rem);
  min-width: 12rem;
  padding: 0.55rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: grid;
  gap: 0.25rem;
}

.menu-item {
  width: 100%;
  padding: 0.72rem 0.85rem;
  background: transparent;
  color: var(--text);
  text-align: left;
  border: 1px solid transparent;
  border-radius: 12px;
}

.menu-item:hover,
.menu-item:focus-visible {
  background: rgba(15, 118, 110, 0.08);
}

.menu-item.danger {
  color: #8c2f14;
}

.menu-divider {
  height: 1px;
  margin: 0.2rem 0.15rem;
  background: var(--line);
}

.tab-panel {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.feature-page {
  gap: 1.3rem;
}

.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 24;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 2vw, 1.5rem);
  background: rgba(248, 250, 252, 0);
  opacity: 0;
  pointer-events: none;
  transform: translateY(0);
  backdrop-filter: blur(0px) saturate(100%);
  transition:
    opacity 220ms ease,
    background-color 320ms ease,
    backdrop-filter 420ms ease,
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform, backdrop-filter, background-color;
}

.settings-overlay.is-open {
  background: rgba(248, 250, 252, 0.56);
  opacity: 1;
  pointer-events: auto;
  backdrop-filter: blur(20px) saturate(145%);
}

.settings-dialog {
  width: min(100%, 760px);
  max-height: calc(100svh - 2rem);
  overflow: auto;
  display: grid;
  gap: 0.85rem;
  padding: 1rem;
  border-radius: 30px;
  box-shadow: 0 28px 80px rgba(25, 38, 54, 0.14);
  opacity: 0;
  transform: translateY(24px) scale(0.98);
  transition:
    transform 360ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 220ms ease,
    box-shadow 320ms ease;
  will-change: transform, opacity;
}

.settings-overlay.is-open .settings-dialog {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.auth-alert-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 2vw, 1.5rem);
  background: rgba(20, 28, 38, 0);
  opacity: 0;
  pointer-events: none;
  isolation: isolate;
  backdrop-filter: blur(0px) saturate(100%);
  transition:
    opacity 220ms ease,
    background-color 320ms ease,
    backdrop-filter 420ms ease;
  will-change: opacity, backdrop-filter, background-color;
}

.auth-alert-overlay.is-open {
  background: rgba(20, 28, 38, 0.28);
  opacity: 1;
  pointer-events: auto;
  backdrop-filter: blur(18px) saturate(130%);
}

.auth-alert-dialog {
  width: min(100%, 30rem);
  display: grid;
  gap: 1rem;
  padding: 1.1rem;
  border-radius: 28px;
  box-shadow: 0 28px 80px rgba(25, 38, 54, 0.14);
  opacity: 0;
  transform: translateY(18px) scale(0.98);
  transition:
    transform 360ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 220ms ease,
    box-shadow 320ms ease;
  will-change: transform, opacity;
}

.auth-alert-overlay.is-open .auth-alert-dialog {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.auth-alert-head {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
}

.auth-alert-icon {
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  background: rgba(204, 92, 49, 0.12);
  color: var(--warn);
  font-size: 1.35rem;
  font-weight: 800;
}

.auth-alert-icon[data-tone="success"] {
  background: rgba(22, 163, 74, 0.14);
  color: #15803d;
}

.auth-alert-copy {
  min-width: 0;
}

.auth-alert-copy h2 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.auth-alert-copy .lede {
  margin-top: 0.45rem;
}

.auth-alert-actions {
  display: flex;
  justify-content: flex-end;
}

.auth-alert-actions .primary-button.small {
  min-width: 6.5rem;
}

.settings-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.settings-head h1 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -0.045em;
  line-height: 1.02;
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
}

.settings-head .lede {
  margin-top: 0.55rem;
  max-width: 44ch;
}

.settings-close {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  color: var(--muted);
  font-size: 1.5rem;
  line-height: 1;
  flex: 0 0 auto;
  box-shadow: 0 6px 12px rgba(25, 38, 54, 0.05);
}

.settings-close:hover,
.settings-close:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 1);
  border-color: rgba(15, 118, 110, 0.22);
}

@media (prefers-reduced-motion: reduce) {
  .settings-overlay,
  .settings-dialog,
  .auth-alert-overlay,
  .auth-alert-dialog,
  .billing-help-popover,
  .billing-help-dialog,
  .app-shell {
    transition: none;
    transform: none;
  }

  body[data-modal="billing"] .app-shell {
    filter: none;
  }
}

.panel-intro {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  padding: 0.2rem 0 0;
}

.panel-intro > div:first-child {
  max-width: 50rem;
}

.card-grid {
  display: grid;
  gap: 0.75rem;
  align-items: start;
}

.preview-grid,
.settings-pane-grid {
  grid-template-columns: 1fr;
  width: min(100%, 60rem);
  align-items: start;
}

.feature-list-grid {
  width: min(100%, 60rem);
}

.feature-list-grid {
  display: grid;
  gap: 0.85rem;
  align-items: start;
}

.feature-card,
.config-card,
.preview-card,
.settings-card,
.studio-hero,
.billing-card,
.empty-state {
  border-radius: var(--radius-xl);
  padding: 1rem;
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.feature-card {
  position: relative;
  width: 100%;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  text-align: left;
  appearance: none;
}

.feature-card-button {
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.feature-card-button:hover,
.feature-card-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.18);
  box-shadow: 0 16px 30px rgba(25, 38, 54, 0.08);
  background: rgba(255, 255, 255, 0.98);
}

.feature-card-head {
  display: block;
  padding-right: 5.4rem;
}

.feature-card h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.feature-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.38rem 0.72rem;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.1);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 750;
  white-space: nowrap;
}

.feature-card-status {
  position: absolute;
  top: 1rem;
  right: 1rem;
}

.feature-card-copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.55;
}

.feature-meta {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.feature-meta span {
  padding: 0.42rem 0.62rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
  color: var(--muted-strong);
  font-size: 0.8rem;
  font-weight: 650;
}

.card-head h3 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.compact {
  margin-bottom: 0.05rem;
}

.phone-shell {
  border-radius: 22px;
  padding: 0.85rem;
  background: linear-gradient(180deg, #fbfdff, #f5f8fc);
  border: 1px solid var(--line);
}

.phone-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.8rem;
}

.phone-name {
  font-size: 0.9rem;
  font-weight: 750;
}

.phone-badge {
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.08);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.approval-thread {
  display: grid;
  gap: 0.72rem;
}

.approval-field {
  display: grid;
  gap: 0.35rem;
}

.approval-label {
  color: var(--muted-strong);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bubble {
  max-width: 88%;
  padding: 0.82rem 0.92rem;
  border-radius: 16px;
  line-height: 1.52;
  font-size: 0.92rem;
  white-space: pre-wrap;
  word-break: break-word;
  box-shadow: 0 8px 18px rgba(25, 38, 54, 0.06);
}

.bubble.incoming {
  justify-self: start;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
  border: 1px solid var(--line);
  border-bottom-left-radius: 8px;
}

.bubble.outgoing {
  justify-self: end;
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.96), rgba(15, 118, 110, 0.9));
  color: #fff;
  border-bottom-right-radius: 8px;
}

.approval-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.approval-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.5;
}

.preview-actions {
  display: flex;
  justify-content: flex-start;
}

.feature-page-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.panel-spotlight {
  display: flex;
  justify-content: flex-end;
  align-self: stretch;
}

.feature-status.is-sent {
  background: rgba(90, 102, 118, 0.12);
  color: var(--muted-strong);
}

.simulator-grid {
  width: min(100%, 74rem);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

.simulator-compose-card {
  grid-column: 1 / -1;
}

.simulator-inbox-card,
.simulator-detail-card {
  align-content: start;
  min-width: 0;
}

.simulator-form-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.simulator-queue {
  display: grid;
  gap: 0.65rem;
  max-height: 34rem;
  overflow: auto;
  padding-right: 0.1rem;
}

.simulator-queue-item {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  text-align: left;
  cursor: pointer;
  appearance: none;
  padding: 0.95rem;
  border-radius: 20px;
  display: grid;
  gap: 0.7rem;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.simulator-queue-item:hover,
.simulator-queue-item:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.18);
  box-shadow: 0 16px 30px rgba(25, 38, 54, 0.08);
  background: rgba(255, 255, 255, 0.98);
}

.simulator-queue-item.is-active {
  border-color: rgba(15, 118, 110, 0.24);
  box-shadow: 0 18px 34px rgba(15, 118, 110, 0.12);
  background: rgba(255, 255, 255, 0.98);
}

.simulator-queue-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.simulator-queue-head h4 {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.simulator-queue-meta {
  margin: 0.18rem 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.45;
}

.simulator-queue-copy {
  margin: 0;
  color: var(--text);
  font-size: 0.92rem;
  line-height: 1.55;
}

.simulator-queue-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted-strong);
  font-size: 0.75rem;
  font-weight: 650;
}

.simulator-shell {
  padding: 0.95rem;
  background: linear-gradient(180deg, #fcfeff, #f4f8fb);
}

.simulator-reply {
  width: 100%;
  min-height: 7.5rem;
  resize: vertical;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  font: inherit;
  line-height: 1.6;
  padding: 0.95rem 1rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.simulator-context-block {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.9rem;
}

.simulator-context-list {
  display: grid;
  gap: 0.45rem;
}

.simulator-context-item {
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  color: var(--muted-strong);
  line-height: 1.55;
  font-size: 0.87rem;
  padding: 0.68rem 0.8rem;
}

.simulator-context-item.is-primary {
  color: var(--text);
  border-color: rgba(15, 118, 110, 0.18);
  background: rgba(15, 118, 110, 0.06);
}

.prompt-details {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  padding: 0.85rem 0.95rem;
}

.prompt-details summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  list-style: none;
}

.prompt-details summary::-webkit-details-marker {
  display: none;
}

.prompt-details pre {
  margin: 0.75rem 0 0;
  white-space: pre-wrap;
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.6;
  font-family: var(--font-mono);
}

.settings-switcher {
  display: inline-flex;
  gap: 0.45rem;
  padding: 0.4rem;
  border-radius: 999px;
  width: fit-content;
  max-width: 100%;
}

.subtab-button {
  padding: 0.68rem 0.92rem;
  background: rgba(255, 255, 255, 0.5);
  color: var(--muted);
  border: 1px solid transparent;
}

.detail-stack {
  display: grid;
  gap: 0.6rem;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}

.detail-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.detail-key {
  color: var(--muted-strong);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.card-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
}

.card-actions .ghost-button {
  flex: 1 1 10rem;
}

.feature-page-header {
  position: sticky;
  top: 0.7rem;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  margin-inline: calc(var(--shell-pad) * -1);
  padding: 0.45rem var(--shell-pad) 0.95rem;
  background:
    linear-gradient(180deg, rgba(248, 250, 252, 0.92) 0%, rgba(248, 250, 252, 0.66) 100%);
  border-bottom: 1px solid rgba(20, 28, 38, 0.08);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.8) inset,
    0 12px 24px rgba(25, 38, 54, 0.04);
  backdrop-filter: blur(14px) saturate(145%);
}

.feature-page-header-center {
  display: grid;
  gap: 0.55rem;
  justify-items: center;
  align-content: center;
  min-width: 0;
}

.feature-page-header-label {
  margin: 0;
  justify-self: center;
  text-align: center;
  white-space: nowrap;
}

.feature-page-nav {
  display: inline-flex;
  gap: 0.35rem;
  padding: 0.35rem;
  border-radius: 999px;
  border: 1px solid rgba(20, 28, 38, 0.08);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 8px 18px rgba(25, 38, 54, 0.04);
  max-width: 100%;
}

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

.feature-page-header-actions {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-self: end;
}

.feature-back-button {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid rgba(20, 28, 38, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(25, 38, 54, 0.05);
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
  justify-self: start;
}

.feature-back-button:hover,
.feature-back-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.22);
  box-shadow: 0 12px 24px rgba(25, 38, 54, 0.08);
  background: rgba(255, 255, 255, 0.98);
}

.feature-menu-wrap {
  position: relative;
}

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

.feature-menu-button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.68rem 0.9rem;
  border: 1px solid rgba(20, 28, 38, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(25, 38, 54, 0.05);
}

.feature-menu-button:hover,
.feature-menu-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.22);
  box-shadow: 0 12px 24px rgba(25, 38, 54, 0.08);
}

.feature-menu-button-label {
  white-space: nowrap;
}

.feature-menu-popover {
  min-width: 14rem;
  right: 0;
  top: calc(100% + 0.55rem);
}

.feature-page-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(18rem, 0.92fr);
  gap: 1.1rem 1.35rem;
  align-items: start;
  width: min(100%, 76rem);
  padding-top: 0.35rem;
  justify-self: center;
  justify-items: start;
  text-align: left;
}

.feature-page-intro-main {
  display: grid;
  gap: 0.85rem;
  align-content: start;
}

.feature-page-intro h1 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5vw, 4.8rem);
  letter-spacing: -0.05em;
  line-height: 0.96;
  text-wrap: balance;
}

.feature-page-description {
  margin: 0;
  max-width: 70ch;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.68;
}

.feature-page-meta {
  margin-top: 0.15rem;
  justify-content: flex-start;
}

.feature-page-pitch {
  max-width: 42ch;
  color: var(--text);
}

.feature-page-example {
  justify-self: stretch;
  align-self: stretch;
  display: grid;
  gap: 0;
  min-height: clamp(25rem, 46vw, 31rem);
}

.feature-page-example.whatsapp-preview {
  position: relative;
  overflow: hidden;
  border-radius: 32px;
  padding: 0;
  border: 1px solid rgba(15, 118, 110, 0.16);
  background: linear-gradient(180deg, #0b7669 0 7rem, #edf7f1 7rem 100%);
  box-shadow: 0 26px 60px rgba(16, 38, 40, 0.12);
}

.feature-page-example.whatsapp-preview::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 16%, rgba(37, 211, 102, 0.16), transparent 20%),
    radial-gradient(circle at 82% 10%, rgba(255, 255, 255, 0.18), transparent 16%),
    radial-gradient(circle at 72% 68%, rgba(15, 118, 110, 0.08), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 42%);
  pointer-events: none;
}

.whatsapp-preview-topbar {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  min-height: 7rem;
  padding: 1.2rem 1.35rem 1.45rem;
  color: #fff;
}

.whatsapp-preview-contact {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  min-width: 0;
}

.whatsapp-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  flex: 0 0 auto;
}

.whatsapp-preview-contact-copy {
  display: grid;
  gap: 0.22rem;
  min-width: 0;
  padding-top: 0.15rem;
}

.whatsapp-preview-contact-copy .phone-name {
  color: #fff;
  font-size: 1.1rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.whatsapp-preview-meta {
  color: rgba(225, 255, 246, 0.78);
  font-size: 0.72rem;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.whatsapp-preview-body {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.95rem;
  padding: 1.2rem 1.15rem 1rem;
  background: linear-gradient(180deg, rgba(234, 245, 240, 0.72), rgba(242, 248, 245, 0.96));
}

.whatsapp-preview-body::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(15, 118, 110, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 118, 110, 0.03) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.7;
  pointer-events: none;
}

.whatsapp-preview-body > * {
  position: relative;
  z-index: 1;
}

.whatsapp-preview .approval-field {
  gap: 0.45rem;
}

.whatsapp-preview .approval-label {
  color: #6b7a89;
  letter-spacing: 0.16em;
}

.whatsapp-preview .bubble {
  max-width: 90%;
  padding: 0.95rem 1rem;
  border-radius: 20px;
  line-height: 1.55;
  font-size: 0.95rem;
}

.whatsapp-preview .bubble.incoming {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-left-radius: 8px;
}

.whatsapp-preview .bubble.outgoing {
  background: linear-gradient(180deg, #128c7e, #0f766e);
  border-bottom-right-radius: 8px;
}

.whatsapp-preview-footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0 1.15rem 1.15rem;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.whatsapp-preview-footer .status-dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 999px;
  background: #25d366;
  box-shadow: 0 0 0 0.45rem rgba(37, 211, 102, 0.12);
}

.feature-activation-grid {
  display: grid;
  gap: 1rem;
  width: min(100%, 84rem);
  justify-self: center;
  align-items: start;
  padding-top: 0.35rem;
}

.feature-activation-hero {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: start;
  padding: 1.45rem;
  border-radius: 32px;
  background:
    linear-gradient(145deg, rgba(15, 118, 110, 0.08), rgba(30, 136, 229, 0.04)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 251, 253, 0.92));
  border: 1px solid rgba(20, 28, 38, 0.08);
  box-shadow: 0 24px 60px rgba(16, 38, 40, 0.08);
  animation: rise 420ms ease both;
}

.feature-activation-hero-copy {
  display: grid;
  gap: 0.85rem;
  max-width: 46rem;
}

.feature-activation-hero-copy h2 {
  margin: 0;
  max-width: 16ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.2vw, 3.4rem);
  letter-spacing: -0.05em;
  line-height: 0.98;
}

.feature-activation-hero-copy .feature-page-description {
  max-width: 50ch;
  font-size: 1.02rem;
}

.feature-activation-hero-form {
  display: grid;
  gap: 1rem;
  align-content: start;
  min-width: 0;
  width: 100%;
  padding-left: clamp(0rem, 2.4vw, 2rem);
  border-left: 1px solid rgba(20, 28, 38, 0.08);
}

.activation-form-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: minmax(0, 1fr);
}

.field-help {
  display: block;
  margin-top: 0.34rem;
  color: var(--muted-strong);
  font-size: 0.8rem;
  line-height: 1.45;
}

.field-error {
  display: block;
  margin-top: 0.34rem;
  color: #b42318;
  font-size: 0.8rem;
  line-height: 1.45;
  font-weight: 650;
}

.field.has-error input {
  border-color: rgba(180, 35, 24, 0.32);
  background: rgba(255, 244, 243, 0.9);
  box-shadow: 0 0 0 1px rgba(180, 35, 24, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.field.has-error input:focus,
.field.has-error input:focus-visible {
  border-color: rgba(180, 35, 24, 0.6);
  box-shadow: 0 0 0 4px rgba(180, 35, 24, 0.12), 0 0 0 1px rgba(180, 35, 24, 0.22);
}

.activation-summary {
  color: var(--muted-strong);
  margin: 0;
}

.activation-summary.is-loading {
  color: var(--accent);
  font-weight: 700;
}

.feature-activation-grid.is-loading .feature-activation-hero {
  border-color: rgba(15, 118, 110, 0.16);
  box-shadow: 0 24px 60px rgba(16, 38, 40, 0.1);
}

.feature-activation-grid.is-loading .feature-activation-hero {
  background:
    linear-gradient(145deg, rgba(15, 118, 110, 0.1), rgba(30, 136, 229, 0.06)),
    rgba(255, 255, 255, 0.95);
}

.feature-activation-actions {
  width: 100%;
  justify-content: flex-end;
  align-items: center;
  margin-top: 0.15rem;
  padding-top: 0.95rem;
  border-top: 1px solid rgba(20, 28, 38, 0.08);
}

.feature-activation-actions .primary-button {
  min-width: 12rem;
}

.feature-activation-actions .primary-button.is-loading {
  position: relative;
  padding-right: 2.8rem;
  cursor: progress;
}

.feature-activation-actions .primary-button.is-loading::after {
  content: "";
  position: absolute;
  right: 0.95rem;
  top: 50%;
  width: 0.95rem;
  height: 0.95rem;
  margin-top: -0.48rem;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.34);
  border-top-color: rgba(255, 255, 255, 0.95);
  animation: spin 760ms linear infinite;
}

.feature-page-header .feature-status {
  justify-self: end;
}

.settings-pane-grid {
  grid-template-columns: 1fr;
}

.studio-hero {
  width: min(100%, 60rem);
  border-radius: 28px;
  padding: 1.05rem 1.1rem;
}

.studio-hero-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.studio-meta {
  margin-top: 0.15rem;
}

.studio-fields {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: min(100%, 76rem);
  justify-self: center;
  align-items: start;
}

.setup-card {
  grid-column: 1 / -1;
}

.editor-activation-card {
  gap: 0.9rem;
  background:
    linear-gradient(145deg, rgba(15, 118, 110, 0.08), rgba(30, 136, 229, 0.04)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 251, 253, 0.92));
}

.editor-activation-actions {
  justify-content: flex-start;
  padding-top: 0.25rem;
}

.editor-activation-actions .primary-button,
.editor-activation-actions .ghost-button {
  min-width: 12rem;
}

.setup-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.setup-list {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  line-height: 1.55;
}

.setup-list strong {
  color: var(--text);
}

.empty-state {
  background: rgba(255, 255, 255, 0.88);
  border: 1px dashed var(--line-strong);
}

.empty-state h3,
.empty-state p {
  margin: 0;
}

.empty-state h3 {
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.empty-state p {
  color: var(--muted);
  line-height: 1.6;
}

.settings-card {
  max-width: 100%;
}

.settings-card .card-actions {
  justify-content: flex-start;
}

.settings-card .ghost-button {
  width: auto;
  flex: 0 0 auto;
  min-width: 9rem;
}

.panel-intro,
.app-bar,
.feature-page-header,
.feature-page-intro,
.feature-page-example,
.feature-row,
.billing-hero,
.billing-card,
.billing-month,
.billing-tool,
.billing-model-row,
.detail-row,
.card-actions {
  animation: rise 420ms ease both;
}

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

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 860px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }

  .auth-card {
    justify-self: center;
    width: min(100%, 30rem);
  }

  .preview-canvas-body {
    grid-template-columns: 1fr;
  }

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

  .app-bar {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "brand actions"
      "tabs tabs";
    align-items: start;
  }

  .status-pill {
    display: none;
  }

  .brand-block {
    grid-area: brand;
  }

  .tab-strip {
    grid-area: tabs;
    justify-content: flex-start;
    width: 100%;
    justify-self: stretch;
    padding-bottom: 0.3rem;
  }

  .topbar-actions {
    grid-area: actions;
    justify-content: flex-end;
    align-items: flex-start;
    gap: 0.55rem;
  }

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

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

  .simulator-compose-card {
    grid-column: auto;
  }

  .simulator-form-grid {
    grid-template-columns: 1fr;
  }

  .billing-hero {
    grid-template-columns: 1fr;
  }

  .billing-help-strip {
    grid-template-columns: 1fr;
  }

  .billing-help-actions {
    justify-self: start;
  }

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

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

  .billing-status-banner {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .billing-status-message,
  .billing-status-meta {
    max-width: none;
  }

  .billing-refresh-button {
    justify-self: start;
    width: auto;
  }

  .simulator-queue {
    max-height: none;
  }

  .panel-intro {
    flex-direction: column;
  }

  .feature-page-header {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 0.65rem;
  }

  .feature-activation-hero {
    grid-template-columns: 1fr;
  }

  .feature-page-header-label {
    justify-self: center;
  }
}

@media (max-width: 700px) {
  .auth-shell,
  .app-shell {
    padding: 1rem;
  }

  .app-shell {
    --shell-pad: 1rem;
  }

  .auth-shell,
  .feature-page-intro,
  .feature-page-header,
  .feature-list-grid,
  .studio-hero,
  .studio-fields,
  .preview-grid,
  .simulator-grid,
  .simulator-form-grid,
  .billing-page,
  .settings-pane-grid {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .app-bar {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "brand actions"
      "tabs tabs";
    align-items: start;
  }

  .feature-page-header {
    position: static;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "back actions"
      "center center";
    gap: 0.55rem 0.65rem;
    align-items: start;
  }

  .feature-page-intro {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .feature-activation-grid {
    width: 100%;
  }

  .feature-activation-hero {
    padding: 1.1rem;
  }

  .feature-activation-hero-form {
    padding-left: 0;
    padding-top: 1rem;
    border-left: 0;
    border-top: 1px solid rgba(20, 28, 38, 0.08);
  }

  .activation-form-grid {
    grid-template-columns: 1fr;
  }

  .feature-activation-actions {
    flex-direction: column;
    align-items: stretch;
    position: static;
    padding: 0.9rem 0 0;
    border: 0;
    box-shadow: none;
    background: transparent;
  }

  .feature-activation-actions .primary-button {
    width: 100%;
    min-width: 0;
  }

  .feature-page-example {
    width: 100%;
  }

  .setup-card {
    grid-column: auto;
  }

  .brand-block {
    grid-area: brand;
  }

  .tab-strip {
    grid-area: tabs;
    width: 100%;
    justify-content: flex-start;
    justify-self: stretch;
  }

  .topbar-actions {
    grid-area: actions;
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
  }

  .auth-story h1 {
    font-size: clamp(2.6rem, 14vw, 4rem);
  }

  .auth-story {
    max-width: 34rem;
  }

  .panel-intro h1 {
    font-size: clamp(1.8rem, 8vw, 2.8rem);
  }

  .input-row,
  .card-actions,
  .studio-hero-top,
  .phone-status,
  .detail-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .feature-back-button {
    grid-area: back;
    justify-self: start;
  }

  .feature-page-header-center {
    grid-area: center;
    justify-self: stretch;
  }

  .feature-page-header-label {
    justify-self: center;
  }

  .feature-page-header-actions {
    grid-area: actions;
    justify-self: end;
  }

  .feature-page-nav {
    width: 100%;
  }

  .feature-page-nav .subtab-button {
    flex: 1 1 0;
  }

  .feature-page-description {
    max-width: 52ch;
    font-size: 1.02rem;
  }

  .feature-page-intro h1 {
    font-size: clamp(2.2rem, 11vw, 3.2rem);
    max-width: 18ch;
  }

  .preview-canvas {
    padding: 0.9rem;
  }

  .preview-canvas-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .preview-canvas-body {
    grid-template-columns: 1fr;
  }

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

  .preview-feature-head {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .billing-help-strip {
    gap: 0.85rem;
  }

  .billing-help-summary {
    max-width: none;
  }

  .billing-help-popover {
    width: min(100%, 24rem);
  }

  .billing-hero-metrics {
    grid-template-columns: 1fr;
  }

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

  .billing-tool summary {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .billing-tool-stat {
    text-align: left;
  }

  .billing-month summary {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .billing-month-stat {
    text-align: left;
  }

  .billing-month-caret {
    display: none;
  }

  .billing-model-row {
    grid-template-columns: 0.72rem minmax(0, 1fr);
  }

  .billing-model-stats {
    grid-column: 2;
    text-align: left;
  }

  .billing-model-swatch {
    min-height: 2.2rem;
  }

  .primary-button,
  .ghost-button,
  .text-button,
  .subtab-button,
  .menu-item {
    width: 100%;
  }

  .menu-button {
    min-width: 0;
    width: auto;
    padding: 0.44rem;
    gap: 0;
  }

  .menu-copy,
  .menu-caret {
    display: none;
  }

  .avatar {
    width: 2rem;
    height: 2rem;
    font-size: 0.76rem;
  }

  .menu-popover {
    width: min(16rem, calc(100vw - 2rem));
    min-width: 0;
  }
}