/*
 * Elevionis Experience Foundation (UX-1)
 *
 * This layer is intentionally opt-in. It may only affect descendants of
 * `.experience-shell`; Staff and Student retain their existing visual systems.
 */

.experience-shell {
  color-scheme: light;

  /* Typography */
  --experience-font-family: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --experience-type-label: 0.75rem;
  --experience-type-caption: 0.8125rem;
  --experience-type-support: 0.875rem;
  --experience-type-body: 1rem;
  --experience-type-control: 1rem;
  --experience-type-lead: 1.125rem;
  --experience-type-step: clamp(1.375rem, 1.1rem + 1vw, 1.5rem);
  --experience-type-page: clamp(1.75rem, 1.3rem + 1.7vw, 2rem);
  --experience-type-hero: clamp(2rem, 1.35rem + 2.7vw, 3.5rem);
  --experience-leading-tight: 1.08;
  --experience-leading-body: 1.6;

  /* Color */
  --experience-color-page: #fcfbff;
  --experience-color-surface: #ffffff;
  --experience-color-surface-soft: #f8f5ff;
  --experience-color-ink: #25143d;
  --experience-color-muted: #6a5c79;
  --experience-color-brand: #6d3df0;
  --experience-color-brand-strong: #552acb;
  --experience-color-brand-soft: #f1ecff;
  --experience-color-border: #ded7e8;
  --experience-color-border-strong: #bbaee0;
  --experience-color-success: #237a5a;
  --experience-color-success-soft: #e7f6f0;
  --experience-color-danger: #a63a4a;
  --experience-color-danger-soft: #fff0f2;
  --experience-color-warning: #8a5b00;
  --experience-color-warning-soft: #fff6df;
  --experience-color-info: #285c91;
  --experience-color-info-soft: #edf6ff;
  --experience-color-focus: #25143d;
  --experience-color-on-brand: #ffffff;

  /* Spacing */
  --experience-space-1: 0.25rem;
  --experience-space-2: 0.5rem;
  --experience-space-3: 0.75rem;
  --experience-space-4: 1rem;
  --experience-space-6: 1.5rem;
  --experience-space-8: 2rem;
  --experience-space-12: 3rem;
  --experience-space-16: 4rem;

  /* Geometry and elevation */
  --experience-radius-control: 0.75rem;
  --experience-radius-choice: 1rem;
  --experience-radius-panel: 1.5rem;
  --experience-radius-pill: 999px;
  --experience-shadow-flat: none;
  --experience-shadow-raised: 0 16px 40px rgba(55, 31, 83, 0.1);
  --experience-shadow-overlay: 0 28px 80px rgba(43, 24, 67, 0.18);

  /* Layout */
  --experience-container-reading: 42.5rem;
  --experience-container-form: 47.5rem;
  --experience-container-journey: 73.75rem;
  --experience-container-auth: 90rem;
  --experience-gutter: clamp(1rem, 3vw, 2rem);

  /* Motion */
  --experience-motion-fast: 120ms;
  --experience-motion-normal: 180ms;
  --experience-motion-slow: 280ms;
  --experience-ease-standard: cubic-bezier(0.2, 0, 0, 1);

  font-family: var(--experience-font-family);
  color: var(--experience-color-ink);
  text-rendering: optimizeLegibility;
}

.experience-shell,
.experience-shell * {
  box-sizing: border-box;
}

/* Dark tokens are opt-in and currently consumed only by Admission. */
html[data-theme="dark"] .experience-shell.experience-admission,
.experience-shell.experience-theme-dark {
  color-scheme: dark;
  --experience-color-page: #17131f;
  --experience-color-surface: #241e31;
  --experience-color-surface-soft: #2d253c;
  --experience-color-ink: #f5f1ff;
  --experience-color-muted: #b9b1c9;
  --experience-color-brand: #aa8cff;
  --experience-color-brand-strong: #c0a9ff;
  --experience-color-brand-soft: #352a4d;
  --experience-color-border: #4d4261;
  --experience-color-border-strong: #75668f;
  --experience-color-success: #7fd4b5;
  --experience-color-success-soft: #183d32;
  --experience-color-danger: #ff9fac;
  --experience-color-danger-soft: #4a232c;
  --experience-color-warning: #f7ca75;
  --experience-color-warning-soft: #493817;
  --experience-color-info: #9ac9fa;
  --experience-color-info-soft: #1f3954;
  --experience-color-focus: #dccfff;
  --experience-color-on-brand: #20142f;
  --experience-shadow-raised: 0 18px 46px rgba(0, 0, 0, 0.3);
  --experience-shadow-overlay: 0 30px 90px rgba(0, 0, 0, 0.46);
}

/* Responsive container primitives. */
.experience-container {
  width: min(100% - (2 * var(--experience-gutter)), var(--experience-container-journey));
  margin-inline: auto;
}

.experience-container--reading { max-width: var(--experience-container-reading); }
.experience-container--form { max-width: var(--experience-container-form); }
.experience-container--journey { max-width: var(--experience-container-journey); }
.experience-container--auth {
  width: min(100% - (2 * var(--experience-gutter)), var(--experience-container-auth));
  max-width: var(--experience-container-auth);
}

/* Surface primitives. */
.experience-page {
  min-block-size: 100dvh;
  background: var(--experience-color-page);
  color: var(--experience-color-ink);
}

.experience-panel,
.experience-card,
.experience-selectable-card {
  border: 1px solid var(--experience-color-border);
  background: var(--experience-color-surface);
}

.experience-panel {
  border-radius: var(--experience-radius-panel);
  box-shadow: var(--experience-shadow-raised);
}

.experience-card {
  border-radius: var(--experience-radius-choice);
  box-shadow: var(--experience-shadow-flat);
}

.experience-selectable-card {
  border-radius: var(--experience-radius-choice);
  transition:
    border-color var(--experience-motion-normal) var(--experience-ease-standard),
    background-color var(--experience-motion-normal) var(--experience-ease-standard),
    box-shadow var(--experience-motion-normal) var(--experience-ease-standard),
    transform var(--experience-motion-fast) var(--experience-ease-standard);
}

/* Type utilities for refreshed public journeys. */
.experience-type-label {
  font-size: var(--experience-type-label);
  font-weight: 800;
  letter-spacing: 0.11em;
  line-height: 1.4;
  text-transform: uppercase;
}

.experience-type-caption { font-size: var(--experience-type-caption); }
.experience-type-support { font-size: var(--experience-type-support); }
.experience-type-body { font-size: var(--experience-type-body); line-height: var(--experience-leading-body); }
.experience-type-lead { font-size: var(--experience-type-lead); line-height: 1.55; }
.experience-type-step { font-size: var(--experience-type-step); line-height: 1.16; }
.experience-type-page { font-size: var(--experience-type-page); line-height: var(--experience-leading-tight); }
.experience-type-hero { font-size: var(--experience-type-hero); line-height: 1.02; }

/* Button hierarchy. */
.experience-shell .experience-button,
.experience-shell .experience-auth-method,
.experience-shell .experience-text-action {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--experience-space-2);
  min-block-size: 2.75rem;
  border-radius: var(--experience-radius-control);
  font: 750 var(--experience-type-control) / 1.2 var(--experience-font-family);
  text-decoration: none;
  cursor: pointer;
  transition:
    color var(--experience-motion-fast) var(--experience-ease-standard),
    border-color var(--experience-motion-fast) var(--experience-ease-standard),
    background-color var(--experience-motion-fast) var(--experience-ease-standard),
    box-shadow var(--experience-motion-fast) var(--experience-ease-standard),
    transform var(--experience-motion-fast) var(--experience-ease-standard);
}

.experience-shell .experience-button {
  min-block-size: 3rem;
  padding: 0.75rem 1.125rem;
  border: 1px solid transparent;
}

.experience-shell .experience-button--primary {
  background: var(--experience-color-brand);
  color: var(--experience-color-on-brand);
  box-shadow: 0 8px 20px rgba(109, 61, 240, 0.2);
}

.experience-shell .experience-button--primary:hover { background: var(--experience-color-brand-strong); }
.experience-shell .experience-button--primary:active { box-shadow: none; transform: translateY(1px); }

.experience-shell .experience-button--secondary {
  border-color: var(--experience-color-border);
  background: var(--experience-color-surface);
  color: var(--experience-color-brand-strong);
}

.experience-shell .experience-button--secondary:hover {
  border-color: var(--experience-color-border-strong);
  background: var(--experience-color-brand-soft);
}

.experience-shell .experience-button--quiet,
.experience-shell .experience-text-action {
  border-color: transparent;
  background: transparent;
  color: var(--experience-color-brand-strong);
  box-shadow: none;
}

.experience-shell .experience-button--quiet:hover,
.experience-shell .experience-text-action:hover {
  background: var(--experience-color-brand-soft);
}

.experience-shell .experience-button--destructive {
  border-color: color-mix(in srgb, var(--experience-color-danger) 34%, var(--experience-color-border));
  background: var(--experience-color-danger-soft);
  color: var(--experience-color-danger);
}

.experience-shell .experience-button:disabled,
.experience-shell .experience-auth-method:disabled,
.experience-shell :is(.experience-button, .experience-auth-method)[aria-disabled="true"] {
  opacity: 0.58;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.experience-shell :is(.experience-button, .experience-auth-method)[aria-busy="true"] {
  cursor: progress;
}

.experience-shell :is(.experience-button, .experience-auth-method)[aria-busy="true"]::after {
  width: 0.875rem;
  height: 0.875rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  content: "";
  opacity: 0.78;
  animation: experience-spin 700ms linear infinite;
}

/* Google/email method primitive. The actual peer-method flow arrives in UX-2. */
.experience-shell .experience-auth-method {
  width: 100%;
  min-block-size: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--experience-color-border);
  background: var(--experience-color-surface);
  color: var(--experience-color-ink);
  box-shadow: var(--experience-shadow-flat);
}

.experience-shell .experience-auth-method:hover {
  border-color: var(--experience-color-brand);
  background: var(--experience-color-brand-soft);
}

.experience-auth-method__icon {
  display: inline-grid;
  flex: 0 0 1.25rem;
  width: 1.25rem;
  height: 1.25rem;
  place-items: center;
}

.experience-auth-method__icon svg { display: block; width: 100%; height: 100%; }

/* Form controls. */
.experience-field {
  display: grid;
  gap: var(--experience-space-2);
}

.experience-field__label {
  color: var(--experience-color-ink);
  font-size: var(--experience-type-support);
  font-weight: 750;
}

.experience-field__help,
.experience-validation {
  color: var(--experience-color-muted);
  font-size: var(--experience-type-caption);
  line-height: 1.5;
}

.experience-shell .experience-control {
  width: 100%;
  min-block-size: 3rem;
  padding: 0.75rem 0.875rem;
  border: 1px solid var(--experience-color-border);
  border-radius: var(--experience-radius-control);
  background: var(--experience-color-surface);
  color: var(--experience-color-ink);
  caret-color: var(--experience-color-brand);
  font: 500 var(--experience-type-control) / 1.35 var(--experience-font-family);
  transition:
    border-color var(--experience-motion-fast) var(--experience-ease-standard),
    background-color var(--experience-motion-fast) var(--experience-ease-standard),
    box-shadow var(--experience-motion-fast) var(--experience-ease-standard);
}

.experience-shell textarea.experience-control { min-block-size: 7rem; resize: vertical; }
.experience-shell .experience-control:hover { border-color: var(--experience-color-border-strong); }
.experience-shell .experience-control::placeholder { color: color-mix(in srgb, var(--experience-color-muted) 86%, transparent); }

.experience-shell .experience-control[aria-invalid="true"],
.experience-shell .experience-field[data-state="invalid"] .experience-control {
  border-color: var(--experience-color-danger);
  background: color-mix(in srgb, var(--experience-color-danger-soft) 42%, var(--experience-color-surface));
}

.experience-shell .experience-validation[data-tone="danger"] { color: var(--experience-color-danger); }
.experience-shell .experience-validation[data-tone="success"] { color: var(--experience-color-success); }

.experience-shell .experience-control:disabled {
  background: var(--experience-color-surface-soft);
  color: var(--experience-color-muted);
  cursor: not-allowed;
  opacity: 0.72;
}

.experience-shell .experience-control:-webkit-autofill,
.experience-shell .experience-control:-webkit-autofill:hover,
.experience-shell .experience-control:-webkit-autofill:focus {
  border-color: var(--experience-color-border);
  box-shadow: 0 0 0 1000px var(--experience-color-surface) inset;
  -webkit-text-fill-color: var(--experience-color-ink);
  caret-color: var(--experience-color-brand);
}

/* Native radio/checkbox-backed choice card. */
.experience-choice-card {
  position: relative;
  display: block;
  cursor: pointer;
}

.experience-choice-card > :is(input[type="radio"], input[type="checkbox"]) {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.experience-choice-card__surface {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--experience-space-3);
  min-block-size: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--experience-color-border);
  border-radius: var(--experience-radius-choice);
  background: var(--experience-color-surface);
  color: var(--experience-color-ink);
  font-weight: 700;
  transition:
    border-color var(--experience-motion-fast) var(--experience-ease-standard),
    background-color var(--experience-motion-fast) var(--experience-ease-standard),
    box-shadow var(--experience-motion-fast) var(--experience-ease-standard),
    transform var(--experience-motion-fast) var(--experience-ease-standard);
}

.experience-choice-card__surface::after {
  display: grid;
  width: 1.35rem;
  height: 1.35rem;
  border: 1px solid var(--experience-color-border-strong);
  border-radius: 50%;
  color: var(--experience-color-on-brand);
  content: "";
  line-height: 1;
  opacity: 0;
  place-items: center;
  transform: scale(0.72);
  transition:
    opacity var(--experience-motion-fast) var(--experience-ease-standard),
    transform var(--experience-motion-fast) var(--experience-ease-standard);
}

.experience-choice-card__surface::before {
  position: absolute;
  z-index: 1;
  right: 1.42rem;
  width: 0.32rem;
  height: 0.6rem;
  border-right: 2px solid var(--experience-color-on-brand);
  border-bottom: 2px solid var(--experience-color-on-brand);
  content: "";
  opacity: 0;
  transform: rotate(45deg) scale(0.72);
  transition: opacity var(--experience-motion-fast) var(--experience-ease-standard), transform var(--experience-motion-fast) var(--experience-ease-standard);
}

.experience-choice-card:hover .experience-choice-card__surface {
  border-color: var(--experience-color-brand);
  transform: translateY(-1px);
}

.experience-choice-card > :is(input[type="radio"], input[type="checkbox"]):checked + .experience-choice-card__surface {
  border-color: var(--experience-color-brand);
  background: var(--experience-color-brand-soft);
  color: var(--experience-color-brand-strong);
  box-shadow: 0 0 0 1px var(--experience-color-brand);
}

.experience-choice-card > :is(input[type="radio"], input[type="checkbox"]):checked + .experience-choice-card__surface::after {
  border-color: var(--experience-color-brand);
  background: var(--experience-color-brand);
  opacity: 1;
  transform: scale(1);
}

.experience-choice-card > :is(input[type="radio"], input[type="checkbox"]):checked + .experience-choice-card__surface::before {
  opacity: 1;
  transform: rotate(45deg) scale(1);
}

.experience-choice-card > :is(input[type="radio"], input[type="checkbox"]):disabled + .experience-choice-card__surface {
  background: var(--experience-color-surface-soft);
  color: var(--experience-color-muted);
  cursor: not-allowed;
  opacity: 0.62;
}

.experience-choice-card[data-state="error"] .experience-choice-card__surface {
  border-color: var(--experience-color-danger);
  background: var(--experience-color-danger-soft);
}

/* Semantic progress primitive. */
.experience-progress {
  display: grid;
  gap: var(--experience-space-2);
}

.experience-progress__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--experience-space-3);
  color: var(--experience-color-muted);
  font-size: var(--experience-type-caption);
  font-weight: 750;
}

.experience-progress__track {
  height: 0.4375rem;
  overflow: hidden;
  border-radius: var(--experience-radius-pill);
  background: var(--experience-color-brand-soft);
}

.experience-progress__fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--experience-color-brand);
  transition: width var(--experience-motion-slow) var(--experience-ease-standard);
}

/* One consistent keyboard-focus contract for refreshed surfaces. */
.experience-shell.experience-admission :where(a[href], button, input:not([type="hidden"]), select, textarea, [tabindex]):focus-visible,
#login-screen.experience-shell .login-card :where(a[href], button, input:not([type="hidden"]), select, textarea, [tabindex]):focus-visible,
.experience-choice-card > :is(input[type="radio"], input[type="checkbox"]):focus-visible + .experience-choice-card__surface {
  outline: 3px solid var(--experience-color-focus);
  outline-offset: 3px;
}

/* Auth compatibility aliases: token adoption without changing the Auth layout. */
#login-screen.experience-auth {
  --login-bg: var(--experience-color-page);
  --login-surface: var(--experience-color-surface);
  --login-lavender: var(--experience-color-brand-soft);
  --login-text: var(--experience-color-ink);
  --login-muted: var(--experience-color-muted);
  --login-primary: var(--experience-color-brand);
  --login-primary-active: var(--experience-color-brand-strong);
  --login-line: var(--experience-color-border);
}

#login-screen.experience-auth .login-card .form-control {
  border-color: var(--experience-color-border);
  border-radius: var(--experience-radius-control);
  font-family: var(--experience-font-family);
}

#login-screen.experience-auth .login-card .btn-primary {
  border-radius: var(--experience-radius-control);
  background: var(--experience-color-brand);
}

#login-screen.experience-auth .public-oauth-grid { grid-template-columns: minmax(0, 1fr); }

#login-screen.experience-auth .public-oauth-button.experience-auth-method {
  min-height: 3rem;
  border-color: var(--experience-color-border);
  border-radius: var(--experience-radius-control);
  background: var(--experience-color-surface);
  color: var(--experience-color-ink);
  font-size: var(--experience-type-support);
}

#login-screen.experience-auth .public-oauth-button.experience-auth-method:hover {
  border-color: var(--experience-color-brand);
  background: var(--experience-color-brand-soft);
}

#login-screen.experience-auth .experience-text-action { min-height: 2.75rem; }

#login-screen.experience-auth .login-support a {
  display: inline-flex;
  align-items: center;
  min-block-size: 2.75rem;
  padding-inline: var(--experience-space-2);
  border-radius: var(--experience-radius-control);
}

/* Admission compatibility aliases and controlled primitive migration. */
.experience-shell.experience-admission {
  --ink: var(--experience-color-ink);
  --muted: var(--experience-color-muted);
  --line: var(--experience-color-border);
  --paper: color-mix(in srgb, var(--experience-color-surface) 92%, transparent);
  --surface: var(--experience-color-page);
  --accent: var(--experience-color-brand);
  --accent-dark: var(--experience-color-brand-strong);
  --soft: var(--experience-color-brand-soft);
  --success: var(--experience-color-success);
  --danger: var(--experience-color-danger);
  --shadow: var(--experience-shadow-raised);
  background: var(--experience-color-page);
  color: var(--experience-color-ink);
}

.experience-admission .admission-shell {
  width: min(var(--experience-container-journey), calc(100% - (2 * var(--experience-gutter))));
}

.experience-admission .admission-brand { min-block-size: 2.75rem; }

.experience-admission :is(.admission-progress, .admission-card) {
  border-color: color-mix(in srgb, var(--experience-color-border) 72%, transparent);
  box-shadow: var(--experience-shadow-raised);
}

.experience-admission .admission-progress { border-radius: var(--experience-radius-panel); }
.experience-admission .admission-card { border-radius: var(--experience-radius-panel); }
.experience-admission .eyebrow { font-size: var(--experience-type-label); }
.experience-admission .chapter-heading h2 { font-size: var(--experience-type-page); }
.experience-admission .chapter-heading > p:last-child { font-size: var(--experience-type-body); line-height: var(--experience-leading-body); }

.experience-admission :is(button, .secondary-button[for]) { min-block-size: 2.75rem; }

.experience-admission :is(.primary-button, .secondary-button) {
  min-block-size: 3rem;
  border-radius: var(--experience-radius-control);
  font-family: var(--experience-font-family);
}

.experience-admission .primary-button {
  background: var(--experience-color-brand);
  color: var(--experience-color-on-brand);
  box-shadow: 0 8px 20px rgba(109, 61, 240, 0.2);
}

.experience-admission .primary-button:hover { background: var(--experience-color-brand-strong); }
.experience-admission .secondary-button { border-color: var(--experience-color-border); background: var(--experience-color-surface); color: var(--experience-color-brand-strong); }

.experience-admission :is(.field input, .field select, .field textarea, .availability-row input, .availability-row select) {
  min-block-size: 3rem;
  border-color: var(--experience-color-border);
  border-radius: var(--experience-radius-control);
  background: var(--experience-color-surface);
  color: var(--experience-color-ink);
  font-size: var(--experience-type-control);
}

.experience-admission :is(.choice-row, .choice-grid) label:not(.experience-choice-card) > span {
  position: relative;
  gap: var(--experience-space-2);
  min-block-size: 3rem;
  border-color: var(--experience-color-border);
  border-radius: var(--experience-radius-choice);
  background: var(--experience-color-surface);
  color: var(--experience-color-muted);
}

.experience-admission :is(.choice-row, .choice-grid) label:not(.experience-choice-card) > span::after {
  display: grid;
  flex: 0 0 1.25rem;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--experience-color-brand);
  color: var(--experience-color-on-brand);
  content: "";
  opacity: 0;
  place-items: center;
  transform: scale(0.72);
  transition: opacity var(--experience-motion-fast) var(--experience-ease-standard), transform var(--experience-motion-fast) var(--experience-ease-standard);
}

.experience-admission :is(.choice-row, .choice-grid) label:not(.experience-choice-card) > span::before {
  position: absolute;
  right: 1.42rem;
  width: 0.3rem;
  height: 0.56rem;
  border-right: 2px solid var(--experience-color-on-brand);
  border-bottom: 2px solid var(--experience-color-on-brand);
  content: "";
  opacity: 0;
  transform: rotate(45deg) scale(0.72);
  transition: opacity var(--experience-motion-fast) var(--experience-ease-standard), transform var(--experience-motion-fast) var(--experience-ease-standard);
}

.experience-admission :is(.choice-row, .choice-grid) label:not(.experience-choice-card) > input:checked + span::after {
  opacity: 1;
  transform: scale(1);
}

.experience-admission :is(.choice-row, .choice-grid) label:not(.experience-choice-card) > input:checked + span::before {
  opacity: 1;
  transform: rotate(45deg) scale(1);
}

.experience-admission :is(.choice-row, .choice-grid) label:not(.experience-choice-card) > input:checked + span {
  border-color: var(--experience-color-brand);
  background: var(--experience-color-brand-soft);
  color: var(--experience-color-brand-strong);
}

.experience-admission :is(.progress-meter, .assessment-progress) {
  background: var(--experience-color-brand-soft);
}

.experience-admission .progress-meter > .experience-progress__fill,
.experience-admission .assessment-progress > #assessment-progress-fill {
  background: var(--experience-color-brand);
}

.experience-admission .progress-meter {
  display: grid;
  gap: var(--experience-space-2);
  height: auto;
  overflow: visible;
  background: transparent;
}

.experience-admission .progress-meter::after {
  grid-area: 2 / 1;
  height: 0.4375rem;
  border-radius: var(--experience-radius-pill);
  background: var(--experience-color-brand-soft);
  content: "";
}

.experience-admission .progress-meter > .experience-progress__fill {
  z-index: 1;
  grid-area: 2 / 1;
  height: 0.4375rem;
}

.experience-admission .experience-progress-text {
  display: block;
  grid-area: 1 / 1;
  width: auto;
  height: auto;
  border-radius: 0;
  background: transparent;
  color: var(--experience-color-muted);
  font-size: var(--experience-type-caption);
  font-weight: 750;
  line-height: 1.4;
}

@keyframes experience-spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 48rem) {
  .experience-shell { --experience-gutter: 0.875rem; }
  .experience-actions--mobile-stack { display: grid; grid-template-columns: 1fr; }
  .experience-actions--mobile-stack > * { width: 100%; }
}

@media (max-width: 30rem) {
  .experience-shell { --experience-gutter: 0.625rem; }
  .experience-shell .experience-button { min-block-size: 3.125rem; }
}

@media (min-width: 120rem) {
  .experience-shell { --experience-gutter: 3rem; }
}

@media (prefers-reduced-motion: reduce) {
  .experience-shell,
  .experience-shell * {
    scroll-behavior: auto;
  }

  .experience-shell *,
  .experience-shell *::before,
  .experience-shell *::after {
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
    transition-duration: 0.01ms;
  }
}