[hidden] { display: none !important; }

.topbar { border-bottom: 1px solid var(--color-border); background: var(--color-surface); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; min-height: 52px; gap: 12px; }
.topbar h1 { margin: 0; font-size: 17px; }
.topbar a { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; margin-right: -10px; border-radius: 50%; color: var(--color-text-muted); }
.topbar a:hover { background: color-mix(in srgb, var(--color-text) 8%, transparent); }
.layout { max-width: 700px; padding-block: 32px 48px; }
.intro { margin-bottom: 24px; }
.eyebrow { margin: 0 0 8px; color: var(--color-accent); font-size: 13px; font-weight: 700; letter-spacing: .08em; }
.intro h2 { margin: 0; font-size: clamp(26px, 6vw, 34px); line-height: 1.3; }
.intro > p:last-child { margin: 10px 0 0; color: var(--color-text-muted); }
.card { padding: clamp(20px, 5vw, 32px); border: 1px solid var(--color-border); border-radius: 18px; background: var(--color-surface); }
.field label { display: block; margin-bottom: 8px; font-weight: 600; }
.amount-control { display: flex; align-items: center; gap: 8px; border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-bg); }
.amount-control:focus-within { border-color: var(--color-focus); }
.amount-control input { width: 100%; min-width: 0; min-height: 58px; padding: 8px 14px; border: 0; background: none; font-size: 26px; font-weight: 600; outline: none; }
.amount-control span { flex: none; max-width: 35%; padding-right: 14px; color: var(--color-text-muted); font-size: 14px; }
.field-error { margin: 6px 0 0; color: var(--color-accent); font-size: 13px; }
.currency-row { display: grid; grid-template-columns: minmax(0, 1fr) 48px minmax(0, 1fr); align-items: end; gap: 10px; margin-top: 24px; }
.currency-field { position: relative; min-width: 0; }
.currency-field select { display: block; width: 100%; min-width: 0; height: 52px; padding: 0 28px 0 10px; border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-bg); font-size: 16px; text-overflow: ellipsis; cursor: pointer; -webkit-appearance: none; appearance: none; }
.currency-field::after { position: absolute; right: 15px; bottom: 23px; width: 8px; height: 8px; border-right: 2px solid var(--color-text-muted); border-bottom: 2px solid var(--color-text-muted); content: ''; pointer-events: none; transform: rotate(45deg); }
.swap { width: 48px; height: 52px; padding: 0; border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-bg); font-size: 25px; cursor: pointer; }
.swap:hover, .actions button:hover { border-color: var(--color-accent); }
.conversion { margin-top: 28px; padding: 22px; border-radius: 14px; background: color-mix(in srgb, var(--color-accent) 8%, var(--color-bg)); }
.conversion-label { margin: 0; color: var(--color-text-muted); font-size: 14px; }
.conversion-value { overflow-wrap: anywhere; margin: 8px 0 0; font-size: 24px; font-weight: 600; line-height: 1.25; font-variant-numeric: tabular-nums; }
.conversion-value.has-value { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 12px; }
.conversion-number { font-size: clamp(36px, 8vw, 52px); font-weight: 700; letter-spacing: -.035em; }
.conversion-unit { color: var(--color-accent); font-size: clamp(17px, 4vw, 22px); font-weight: 700; letter-spacing: .02em; }
.conversion-rate { margin: 10px 0 0; font-size: 14px; }
.conversion-status { margin: 4px 0 0; color: var(--color-text-muted); font-size: 13px; }
.conversion-status:empty { display: none; }
.actions { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; margin-top: 18px; color: var(--color-text-muted); font-size: 13px; }
.actions button { min-height: 44px; padding: 0 14px; border: 1px solid var(--color-border); border-radius: 10px; background: var(--color-bg); cursor: pointer; }
.action-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.actions button:disabled { opacity: .5; cursor: not-allowed; }
.save-status { margin: 8px 0 0; color: var(--color-text-muted); font-size: 13px; }
.save-status:empty { display: none; }
.saved { margin-top: 16px; }
.saved-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.saved-heading h2 { margin: 0; font-size: 18px; }
.saved-heading button, .saved-list-button { min-height: 44px; padding: 0 8px; border: 0; background: none; color: var(--color-accent); cursor: pointer; }
.saved-note { margin: 2px 0 12px; color: var(--color-text-muted); font-size: 13px; }
.saved ul { margin: 0; padding: 0; list-style: none; }
.saved li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-top: 1px solid var(--color-border); }
.saved li > div { min-width: 0; }
.saved li p { overflow-wrap: anywhere; margin: 0; }
.saved li p + p { color: var(--color-text-muted); font-size: 13px; }
.tool-notes a { display: inline-flex; align-items: center; min-height: 44px; vertical-align: middle; }
@media (max-width: 480px) {
  .layout { padding-block: 20px 32px; }
  .intro { margin-bottom: 16px; }
  .card { padding: 16px; }
  .currency-row { grid-template-columns: minmax(0, 1fr) 44px minmax(0, 1fr); gap: 6px; margin-top: 18px; }
  .currency-field select { padding-inline: 7px 22px; font-size: 14px; }
  .currency-field::after { right: 10px; }
  .swap { width: 44px; }
  .conversion { margin-top: 18px; }
}