.session-page {
  min-height: 100dvh;
  width: 100%;
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  background:
    radial-gradient(circle at top left, rgba(201,168,76,0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(123,157,201,0.12), transparent 26%),
    linear-gradient(180deg, rgba(255,255,255,0.02), transparent 34%),
    var(--bg-base);
}

.session-hero {
  position: relative;
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 430px);
  gap: clamp(var(--space-6), 4vw, var(--space-12));
  align-items: center;
  padding: clamp(var(--space-6), 5vw, var(--space-10));
  border: 1px solid var(--border-subtle);
  border-radius: clamp(var(--radius-xl), 4vw, 36px);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015)),
    var(--bg-surface);
  box-shadow: var(--shadow-frame);
  overflow: hidden;
}

.session-hero::after {
  content: '';
  position: absolute;
  inset: auto -12% -28% auto;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,168,76,0.16), transparent 68%);
  pointer-events: none;
}

.session-hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(6px);
  pointer-events: none;
}

.session-hero-orb-a {
  top: -72px;
  left: -56px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(201,168,76,0.22), transparent 72%);
}

.session-hero-orb-b {
  right: 10%;
  bottom: -96px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(123,157,201,0.16), transparent 68%);
}

.session-copy,
.session-card-stack {
  position: relative;
  z-index: 1;
}

.session-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.session-brand {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: var(--space-3);
  color: var(--text-strong);
  text-decoration: none;
}

.session-brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--text-accent);
  color: var(--bg-base);
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: var(--weight-bold);
  box-shadow: 0 12px 30px var(--gold-18);
}

.session-brand > span:last-child {
  display: flex;
  flex-direction: column;
}

.session-brand strong {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
}

.session-brand small {
  color: var(--text-dim);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.session-eyebrow {
  display: inline-flex;
  align-self: flex-start;
  padding: 5px var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-default);
  background: var(--gold-04);
  color: var(--text-accent);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.session-eyebrow i {
  margin-right: var(--space-1);
}

.session-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(2.35rem, 6vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  color: var(--text-strong);
  max-width: 13ch;
}

.session-subtitle {
  margin: 0;
  max-width: 42ch;
  font-size: var(--text-lg);
  line-height: var(--leading-loose);
  color: var(--text-secondary);
}

.session-points {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 44ch;
}

.session-point {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  color: var(--text-primary);
  line-height: var(--leading-normal);
}

.session-point i {
  color: var(--text-accent);
  font-size: 1.05rem;
  margin-top: 2px;
}

.session-card-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.session-auth-panel {
  padding: clamp(var(--space-5), 3vw, var(--space-7));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
}

.session-auth-heading span {
  color: var(--text-accent);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.session-auth-heading h2 {
  margin: var(--space-2) 0 var(--space-1);
  font-family: var(--font-serif);
  font-size: clamp(1.65rem, 3vw, 2.1rem);
  color: var(--text-strong);
}

.session-auth-heading p {
  margin: 0;
  color: var(--text-secondary);
}

.session-product-preview {
  width: min(580px, 100%);
  padding: var(--space-5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(201,168,76,0.14), transparent 34%),
    var(--bg-elevated);
  box-shadow: var(--shadow-lg);
  transform: rotate(-1deg);
}

.session-preview-topbar,
.session-preview-book {
  display: flex;
  align-items: center;
}

.session-preview-topbar {
  justify-content: space-between;
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

.session-preview-avatar {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gold-18);
  color: var(--text-accent);
  font-weight: var(--weight-semibold);
}

.session-preview-heading {
  margin: var(--space-3) 0;
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  color: var(--text-strong);
}

.session-preview-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) repeat(2, minmax(80px, 0.7fr));
  gap: var(--space-2);
}

.session-preview-book,
.session-preview-stat {
  min-height: 82px;
  padding: var(--space-3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
}

.session-preview-book {
  gap: var(--space-3);
}

.session-preview-book > span:last-child,
.session-preview-stat {
  display: flex;
  flex-direction: column;
}

.session-preview-cover {
  width: 42px;
  height: 54px;
  display: grid;
  place-items: center;
  flex: 0 0 42px;
  border-radius: 8px;
  background: linear-gradient(145deg, var(--gold-18), var(--bg-overlay));
  color: var(--text-accent);
}

.session-preview-book small,
.session-preview-stat span {
  color: var(--text-dim);
  font-size: var(--text-xs);
}

.session-preview-book strong {
  margin-top: 3px;
  color: var(--text-primary);
  font-size: var(--text-sm);
  line-height: var(--leading-tight);
}

.session-preview-stat {
  justify-content: center;
}

.session-preview-stat strong {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  color: var(--text-strong);
}

.session-preview-progress {
  height: 5px;
  margin-top: var(--space-3);
  overflow: hidden;
  border-radius: var(--radius-full);
  background: var(--bg-overlay);
}

.session-preview-progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--gold-strong), var(--gold));
}

.install-prompt {
  position: fixed;
  right: clamp(var(--space-4), 3vw, var(--space-8));
  bottom: clamp(var(--space-4), 3vw, var(--space-8));
  z-index: 1100;
  width: min(510px, calc(100vw - var(--space-8)));
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  background: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
  box-shadow: var(--shadow-frame);
  backdrop-filter: blur(20px);
  animation: installPromptIn 280ms var(--ease-out);
}

.install-prompt[hidden] {
  display: none;
}

.install-prompt-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--gold-12);
  color: var(--text-accent);
  font-size: 1.2rem;
}

.install-prompt-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.install-prompt-copy strong {
  color: var(--text-strong);
}

.install-prompt-copy span {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.install-prompt-dismiss {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
}

.install-prompt-dismiss:hover {
  background: var(--bg-overlay);
  color: var(--text-primary);
}

@keyframes installPromptIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.session-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-4);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg-surface));
  box-shadow: var(--shadow-sm);
  text-align: left;
  cursor: pointer;
  transition:
    transform var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    background var(--duration-base) var(--ease-out);
}

.session-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-default);
  box-shadow: var(--shadow-md);
}

.session-card:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--gold-12), var(--shadow-md);
}

.session-card:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.session-card-primary {
  background:
    linear-gradient(180deg, rgba(201,168,76,0.08), rgba(255,255,255,0.02)),
    var(--bg-elevated);
}

.session-card-unavailable {
  cursor: default;
}

.session-card-unavailable:hover {
  transform: none;
  box-shadow: var(--shadow-sm);
  border-color: var(--border-subtle);
}

.session-card-disabled {
  opacity: 0.9;
}

.session-help-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
}

.session-help-copy {
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}

.session-help-link {
  flex: 0 0 auto;
  color: var(--text-accent);
  font-weight: var(--weight-medium);
  white-space: nowrap;
}

.session-point-warning {
  color: var(--text-primary);
}

.session-point-warning i {
  color: var(--color-warning);
}

.session-card-icon {
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--gold-12);
  color: var(--text-accent);
  font-size: 1.2rem;
}

.session-card-primary .session-card-icon {
  background: var(--gold-18);
}

.session-card-content {
  flex: 1;
  min-width: 0;
}

.session-card-title {
  font-family: var(--font-serif);
  font-size: var(--text-md);
  color: var(--text-strong);
}

.session-card-body {
  margin-top: 4px;
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}

.session-card-action {
  color: var(--text-tertiary);
  flex: 0 0 auto;
  font-size: 1.05rem;
}

.session-fineprint {
  margin: 0;
  padding: 0 var(--space-1);
  color: var(--text-dim);
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
}

.session-loading-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-secondary);
}

.session-loading-spinner {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  border-radius: 50%;
  border: 2px solid var(--border-default);
  border-top-color: var(--text-accent);
  animation: sessionSpin 1s linear infinite;
}

.session-loading-card .session-card-title {
  font-size: var(--text-base);
}

.session-loading-card .session-card-body {
  margin-top: 2px;
}

.session-link-btn {
  align-self: center;
  margin-top: calc(var(--space-1) * -1);
  border: 0;
  background: transparent;
  color: var(--text-accent);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
}

.session-link-btn:hover {
  text-decoration: underline;
}

.session-auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  padding: 4px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-overlay);
}

.session-auth-tab {
  min-height: 40px;
  border: 0;
  border-radius: calc(var(--radius-lg) - 4px);
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
}

.session-auth-tab.active {
  background: var(--bg-elevated);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.session-email-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-1);
}

.session-email-form .btn {
  justify-content: center;
}

.session-signin-mode,
.session-reset-mode {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.session-signin-mode[hidden],
.session-reset-mode[hidden] {
  display: none;
}

.session-reset-mode .btn {
  width: 100%;
}

.session-reset-mode .session-link-btn,
.session-link-btn {
  align-self: flex-start;
}

.session-auth-error {
  margin: 0;
  color: var(--color-danger);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.session-fallback-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: var(--space-4);
  background: rgba(8, 7, 6, 0.72);
  backdrop-filter: blur(12px);
}

.session-fallback-modal[hidden] {
  display: none;
}

.session-fallback-card {
  width: min(420px, 100%);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-frame);
}

.session-fallback-title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-serif);
  color: var(--text-strong);
}

.session-fallback-copy {
  margin: 0;
  color: var(--text-secondary);
  line-height: var(--leading-loose);
}

.session-fallback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@keyframes sessionSpin {
  to { transform: rotate(360deg); }
}

body.session-choice-active {
  overflow-x: hidden;
  overflow-y: auto;
}

body.session-choice-active .app-shell {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  min-height: 100dvh;
}

body.session-choice-active .sidebar,
body.session-choice-active .mobile-topbar,
body.session-choice-active #sidebar,
body.session-choice-active #sidebarOverlay {
  display: none !important;
}

body.session-choice-active #app {
  min-height: 100dvh;
}

body.session-choice-active #mainContent {
  grid-column: 1;
  min-height: 100dvh;
  display: block;
  width: 100%;
  overflow: visible;
}

body.session-choice-active .session-page {
  min-height: 100dvh;
}

body.session-choice-active .toast-container {
  bottom: var(--space-4);
  right: var(--space-4);
}

@media (max-width: 960px) {
  .session-hero {
    grid-template-columns: 1fr;
  }

  .session-title {
    max-width: 12ch;
  }
}

@media (max-width: 640px) {
  .session-preview-grid {
    grid-template-columns: 1fr 1fr;
  }

  .session-preview-book {
    grid-column: 1 / -1;
  }

  .install-prompt {
    left: var(--space-3);
    right: var(--space-3);
    bottom: var(--space-3);
    width: auto;
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    gap: var(--space-2);
    padding: var(--space-2);
  }

  .install-prompt .btn {
    grid-column: 3;
    grid-row: 1;
  }

  .install-prompt-dismiss {
    grid-column: 4;
    grid-row: 1;
  }

  .install-prompt-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
  }

  .install-prompt-copy span {
    font-size: 0.72rem;
  }
}

@media (max-width: 640px) {
  .session-page {
    align-items: start;
    padding:
      max(calc(env(safe-area-inset-top) + 8px), 8px)
      calc(var(--space-3) + env(safe-area-inset-right))
      calc(var(--space-3) + env(safe-area-inset-bottom))
      calc(var(--space-3) + env(safe-area-inset-left));
  }

  .session-hero {
    width: min(100%, 430px);
    padding: var(--space-3);
    border-radius: 24px;
    gap: var(--space-3);
  }

  .session-copy {
    gap: var(--space-3);
  }

  .session-eyebrow {
    padding: 4px var(--space-2);
    letter-spacing: 0.06em;
  }

  .session-title {
    font-size: clamp(1.9rem, 10vw, 2.7rem);
    line-height: 0.98;
    max-width: 9ch;
  }

  .session-subtitle {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    max-width: 34ch;
    color: var(--text-primary);
  }

  .session-points {
    gap: var(--space-2);
    max-width: none;
  }

  .session-point {
    gap: var(--space-2);
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    color: var(--text-body);
  }

  .session-point i {
    margin-top: 1px;
    font-size: 1rem;
  }

  .session-card-stack {
    gap: var(--space-3);
  }

  .session-card {
    padding: var(--space-3);
    gap: var(--space-3);
    border-radius: 22px;
    align-items: flex-start;
  }

  .session-card-icon {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
    border-radius: 14px;
  }

  .session-card-title {
    font-size: var(--text-base);
    line-height: var(--leading-snug);
  }

  .session-card-body,
  .session-help-copy,
  .session-fineprint {
    font-size: var(--text-sm);
  }

  .session-card-body {
    line-height: var(--leading-normal);
  }

  .session-card-action {
    align-self: center;
    margin-left: auto;
  }

  .session-auth-tabs {
    gap: 3px;
    padding: 3px;
  }

  .session-auth-tab {
    min-height: 40px;
    font-size: var(--text-sm);
  }

  .session-email-form {
    gap: var(--space-2);
  }

  .session-signin-mode,
  .session-reset-mode {
    gap: var(--space-2);
  }

  .session-email-form .form-input {
    min-height: 42px;
    padding: 0.7rem var(--space-3);
    font-size: var(--text-sm);
  }

  .session-email-form .btn {
    min-height: 44px;
    padding-inline: var(--space-4);
  }

  .session-link-btn {
    margin-top: 0;
  }

  .session-help-callout {
    padding: var(--space-3);
  }

  .session-help-callout {
    flex-direction: column;
    align-items: flex-start;
  }

  .session-fineprint {
    line-height: var(--leading-normal);
    color: var(--text-secondary);
  }
}

@media (max-width: 430px) {
  .session-page {
    padding-top: max(calc(env(safe-area-inset-top) + 4px), 6px);
  }

  .session-hero {
    width: 100%;
    padding: 0.7rem;
    border-radius: 22px;
  }

  .session-title {
    font-size: clamp(1.8rem, 11vw, 2.35rem);
    max-width: 10ch;
  }

  .session-subtitle {
    max-width: none;
  }

  .session-point {
    font-size: var(--text-sm);
  }

  .session-card {
    padding: var(--space-3);
    gap: var(--space-2);
  }

  .session-card-body {
    font-size: var(--text-xs);
  }

  .session-auth-tab {
    min-height: 38px;
    font-size: var(--text-sm);
  }

  .session-email-form .form-input {
    min-height: 40px;
  }
}

@media (max-width: 360px) {
  .session-page {
    padding-top: max(calc(env(safe-area-inset-top) + 2px), 4px);
  }

  .session-hero {
    padding: 0.65rem;
    border-radius: 20px;
  }

  .session-title {
    font-size: clamp(1.65rem, 10vw, 2.1rem);
  }

  .session-subtitle,
  .session-fineprint,
  .session-help-copy {
    font-size: 0.9rem;
  }

  .session-card {
    border-radius: 20px;
  }

  .session-card-icon {
    width: 40px;
    height: 40px;
    flex-basis: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .session-card {
    transition-duration: 0.01ms !important;
  }
}