* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-sans); color: var(--color-text); background: var(--color-page); -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; }
button, [role="button"] { touch-action: manipulation; }
button { cursor: pointer; }
a { color: inherit; }
svg { width: 1.25rem; height: 1.25rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon-sm { width: 1rem; height: 1rem; }
.icon-lg { width: 1.5rem; height: 1.5rem; }
.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; }
.skip-link { position: fixed; left: var(--space-4); top: -5rem; z-index: var(--z-toast); padding: var(--space-3) var(--space-4); color: var(--color-on-primary); background: var(--color-primary); border-radius: var(--radius-sm); }
.skip-link:focus { top: var(--space-4); }

:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }

.btn { min-height: 3rem; display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); padding: 0 var(--space-5); border: 1px solid transparent; border-radius: var(--radius-sm); font-weight: var(--weight-semibold); color: var(--color-text); background: transparent; transition: background var(--duration-fast), border-color var(--duration-fast), box-shadow var(--duration-fast), color var(--duration-fast), opacity var(--duration-fast); }
.btn:hover { background: var(--color-surface-muted); }
.btn:active { opacity: 0.78; }
.btn-primary { color: var(--color-on-primary); background: var(--color-primary); box-shadow: var(--shadow-1); }
.btn-primary:hover { background: var(--color-primary-hover); box-shadow: var(--shadow-2); }
.btn-primary:active { background: var(--color-primary-active); }
.btn-secondary { color: var(--color-primary); background: var(--color-primary-soft); }
.btn-secondary:hover { background: var(--brand-200); }
.btn-outline { color: var(--color-primary); background: var(--color-surface); border-color: var(--color-border-strong); }
.btn-quiet { color: var(--color-primary); }
.btn-danger { color: var(--color-danger); background: var(--color-danger-soft); }
.btn-block { width: 100%; }
.btn-icon { width: 3rem; padding: 0; border-radius: var(--radius-pill); }
.btn-sm { min-height: 2.5rem; padding: 0 var(--space-4); font-size: var(--text-sm); }
.btn[disabled] { cursor: not-allowed; opacity: 0.45; box-shadow: none; }

.badge { display: inline-flex; align-items: center; gap: var(--space-1); min-height: 1.75rem; padding: 0 var(--space-3); border-radius: var(--radius-pill); font-size: var(--text-xs); font-weight: var(--weight-semibold); color: var(--color-primary); background: var(--color-primary-soft); }
.badge-warm { color: var(--warm-900); background: var(--color-accent-soft); }
.badge-warning { color: var(--color-warning); background: var(--color-warning-soft); }
.badge-neutral { color: var(--color-text-secondary); background: var(--color-surface-muted); }
.badge-dot::before { content: ""; width: 0.375rem; height: 0.375rem; border-radius: 50%; background: currentColor; }

.card { color: var(--color-text); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-1); }
.card-warm { background: var(--color-surface-warm); }
.card-soft { background: var(--color-primary-soft); border-color: transparent; box-shadow: none; }
.card-pad { padding: var(--space-5); }

.field { display: grid; gap: var(--space-2); }
.field label, .field-label { font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.field label em { color: var(--color-danger); font-style: normal; }
.field input, .field select, .field textarea { width: 100%; min-height: 3rem; padding: 0 var(--space-4); color: var(--color-text); background: var(--color-surface); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); font-size: var(--text-md); transition: border-color var(--duration-fast), box-shadow var(--duration-fast); }
.field textarea { min-height: 6rem; padding-top: var(--space-3); resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--color-focus); box-shadow: var(--shadow-focus); outline: none; }
.field-hint { margin: 0; color: var(--color-text-muted); font-size: var(--text-xs); line-height: var(--leading-normal); }
.field-error { display: none; margin: 0; color: var(--color-danger); font-size: var(--text-xs); }
.field.invalid input { border-color: var(--color-danger); }
.field.invalid .field-error { display: block; }
.check-row { min-height: 2.75rem; display: flex; align-items: center; gap: var(--space-3); margin-top: var(--space-3); color: var(--color-text-secondary); font-size: var(--text-sm); cursor: pointer; }
.check-row input { width: 1.25rem; height: 1.25rem; accent-color: var(--color-primary); }

.segmented { display: inline-grid; grid-auto-flow: column; gap: var(--space-1); padding: var(--space-1); border-radius: var(--radius-sm); background: var(--neutral-100); }
.segmented button { min-height: 2.5rem; padding: 0 var(--space-4); border: 0; border-radius: calc(var(--radius-sm) - 4px); color: var(--color-text-secondary); background: transparent; font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.segmented button[aria-pressed="true"] { color: var(--color-primary); background: var(--color-surface); box-shadow: var(--shadow-1); }

.progress-steps { display: grid; grid-template-columns: auto 1fr auto 1fr auto; align-items: center; gap: var(--space-2); }
.progress-steps span { height: 1px; background: var(--color-border-strong); }
.progress-steps i { font-style: normal; width: 1.75rem; height: 1.75rem; display: grid; place-items: center; border-radius: 50%; color: var(--color-text-muted); background: var(--neutral-100); font-size: var(--text-xs); font-weight: var(--weight-bold); }
.progress-steps i.done { color: var(--color-on-primary); background: var(--color-primary); }

.notice { display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--space-4); border-radius: var(--radius-sm); color: var(--color-info); background: var(--color-info-soft); font-size: var(--text-sm); line-height: var(--leading-normal); }
.notice-warning { color: var(--color-warning); background: var(--color-warning-soft); }
.notice svg { flex: none; margin-top: 1px; }

.skeleton { position: relative; overflow: hidden; background: var(--neutral-100); border-radius: var(--radius-xs); }
.skeleton::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 10%, var(--color-white-75) 45%, transparent 80%); transform: translateX(-100%); animation: shimmer 1.5s infinite; }
.empty-state { padding: var(--space-8) var(--space-4); color: var(--color-text-muted); text-align: center; font-size: var(--text-sm); }

.modal[hidden], .sheet[hidden], .toast[hidden] { display: none; }
.modal, .sheet { position: fixed; inset: 0; z-index: var(--z-modal); display: grid; place-items: center; padding: var(--space-4); }
.scrim { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: var(--color-scrim); }
.modal-card { position: relative; z-index: 1; width: min(30rem, 100%); max-height: calc(100dvh - 2rem); overflow-y: auto; padding: var(--space-6); background: var(--color-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-3); animation: modal-in var(--duration-normal) var(--ease-out); }
.modal-close { position: absolute; top: var(--space-3); right: var(--space-3); }
.sheet { place-items: end center; padding: 0; }
.sheet-card { position: relative; z-index: 1; width: min(30rem, 100%); max-height: 92dvh; overflow-y: auto; padding: var(--space-6) var(--space-5) calc(var(--space-6) + env(safe-area-inset-bottom)); background: var(--color-surface); border-radius: var(--radius-lg) var(--radius-lg) 0 0; box-shadow: var(--shadow-3); animation: sheet-in var(--duration-slow) var(--ease-out); }
.sheet-handle { display: block; width: 2.5rem; height: 0.25rem; margin: calc(var(--space-3) * -1) auto var(--space-5); border-radius: var(--radius-pill); background: var(--color-border-strong); }
.toast { position: fixed; left: 50%; bottom: calc(var(--space-6) + env(safe-area-inset-bottom)); z-index: var(--z-toast); transform: translateX(-50%); min-width: 15rem; padding: var(--space-3) var(--space-4); color: var(--color-on-primary); background: var(--neutral-950); border-radius: var(--radius-sm); box-shadow: var(--shadow-3); text-align: center; font-size: var(--text-sm); animation: toast-in var(--duration-normal) var(--ease-out); }

@keyframes shimmer { to { transform: translateX(100%); } }
@keyframes modal-in { from { opacity: 0; transform: translateY(0.5rem) scale(0.98); } }
@keyframes sheet-in { from { transform: translateY(100%); } }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 0.75rem); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition-duration: 0.01ms !important; }
}