/* Verträge (Büro). Builds on app.css; light and dark via prefers-color-scheme. */
:root {
  --ct-ink: #162b4d; --ct-muted: #4d5b70; --ct-line: #d8cfbd; --ct-soft: #f5f1e8; --ct-card: rgb(255 255 255 / .78);
  --ct-field: #fff; --ct-accent: #9b2c2c; --ct-focus: #2f6fc4;
  --ct-ok: #1d5a2d; --ct-ok-bg: #dcefe1; --ct-warn: #7a2e0b; --ct-warn-bg: #fde8d7; --ct-info: #162b4d; --ct-info-bg: #e6ecf5;
}

[hidden] { display: none !important; }
.ct-body { display: block; padding: 1rem 0 2rem; }
.ct-shell { width: min(100% - 2rem, 72rem); margin: 0 auto; padding: clamp(1.1rem, 4vw, 2.6rem); color: var(--ct-ink); }
.ct-shell h1 { font-size: clamp(2rem, 8vw, 3.4rem); margin: .3rem 0 .6rem; }
.ct-shell h2 { font-size: 1.15rem; margin: 0 0 .6rem; }
.ct-shell h3 { font-size: 1rem; margin: 0 0 .4rem; }
.ct-shell h4 { font-size: .98rem; margin: 0 0 .3rem; display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.ct-lead { margin: 0 0 1rem; }
.ct-skip { position: absolute; left: -999px; top: .5rem; display: inline-flex; min-height: 48px; align-items: center; padding: .6rem 1rem; background: var(--ct-ink); color: var(--ct-field); border-radius: .6rem; z-index: 10; }
.ct-skip:focus { left: .5rem; }
.ct-notice-strong { border: 2px solid var(--ct-ink); border-left-width: 6px; border-radius: .8rem; padding: .7rem .9rem; margin: 0 0 1rem;
  background: var(--ct-info-bg); color: var(--ct-info); font-weight: 600; }
.ct-offline { border: 2px solid var(--ct-accent); border-radius: .8rem; padding: .7rem .9rem; margin: 0 0 1rem;
  background: var(--ct-warn-bg); color: var(--ct-warn); font-weight: 700; }
.ct-layout { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); align-items: start; }
.ct-card { border: 1px solid var(--ct-line); border-radius: 1rem; padding: 1rem; background: var(--ct-card); min-width: 0; }
.ct-wide { grid-column: 1 / -1; }
.ct-hint { color: var(--ct-muted); font-size: .92rem; margin: .2rem 0 .8rem; }
.ct-status { min-height: 1.5rem; font-weight: 600; margin: 0 0 .6rem; }
.ct-status[data-tone="error"], .ct-error { color: var(--ct-accent); font-weight: 600; }
.ct-error:empty { display: none; }
.ct-form { display: grid; gap: .75rem; }
.ct-subform { border-top: 1px solid var(--ct-line); margin-top: 1rem; padding-top: 1rem; }
.ct-field { display: grid; gap: .3rem; font-weight: 600; font-size: .93rem; }
.ct-field input, .ct-field select, .ct-member-row select { width: 100%; min-height: 2.9rem; padding: .55rem .75rem; border: 1px solid var(--ct-line);
  border-radius: .65rem; font: inherit; font-weight: 400; background: var(--ct-field); color: var(--ct-ink); }
.ct-field input[aria-invalid="true"], .ct-field select[aria-invalid="true"], .ct-member-row select[aria-invalid="true"] { border: 2px solid var(--ct-accent); }
.ct-check { display: grid; grid-template-columns: auto 1fr; gap: .6rem; align-items: center; font-size: .93rem; min-height: 2.75rem; }
.ct-check input { width: 1.4rem; height: 1.4rem; margin: 0; }
.ct-check input[aria-invalid="true"] { outline: 3px solid var(--ct-accent); outline-offset: 2px; }
.ct-signature-pad { border: 1px solid var(--ct-line); border-radius: .8rem; padding: .8rem; min-width: 0; }
.ct-signature-pad legend { font-weight: 700; padding: 0 .3rem; }
.ct-signature-pad canvas { display: block; width: 100%; height: 13.75rem; border: 2px solid var(--ct-line); border-radius: .65rem;
  background: #fff; touch-action: none; cursor: crosshair; }
.ct-signature-pad canvas:focus-visible { outline: 3px solid var(--ct-focus); outline-offset: 2px; }
.ct-choices { border: 1px solid var(--ct-line); border-radius: .7rem; padding: .6rem .8rem; margin: 0; min-width: 0; }
.ct-choices legend { font-weight: 700; font-size: .93rem; padding: 0 .3rem; }
.ct-stack { display: grid; gap: .6rem; }
.ct-members { display: grid; gap: .7rem; }
.ct-member-row { display: grid; gap: .3rem .6rem; grid-template-columns: 1fr auto; align-items: end; padding-bottom: .6rem; border-bottom: 1px dashed var(--ct-line); }
.ct-member-row > .ct-field, .ct-member-row > select { grid-column: 1 / -1; }
.ct-member-row > .ct-check { grid-column: 1; }
.ct-discipline-field { grid-column: 1 / -1; min-width: 0; margin: .35rem 0; padding: .7rem; border: 1px solid var(--ct-line); border-radius: .65rem; }
.ct-discipline-field legend { padding: 0 .25rem; font-weight: 650; }
.ct-discipline-field .ct-help { margin: 0 0 .6rem; color: var(--ct-muted); font-size: .9rem; }
.ct-discipline-options { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: .45rem .8rem; }
.ct-discipline-options .ct-check { min-height: 3rem; }
.ct-radios { display: grid; gap: .5rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }
.ct-radio { display: grid; grid-template-columns: auto 1fr; gap: .6rem; align-items: center; padding: .6rem .7rem; border: 1px solid var(--ct-line);
  border-radius: .8rem; background: var(--ct-soft); min-height: 2.75rem; cursor: pointer; }
.ct-radio input { width: 1.4rem; height: 1.4rem; margin: 0; }
.ct-radio:has(input:checked) { border: 2px solid var(--ct-ink); }
.ct-radio:has(input:focus-visible) { outline: 3px solid var(--ct-focus); outline-offset: 2px; }
.ct-radio-text { display: grid; gap: .15rem; }
.ct-row { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .6rem; align-items: center; }
.ct-button { min-height: 3rem; padding: .6rem 1.05rem; border: 0; border-radius: .7rem; background: var(--ct-ink); color: var(--ct-field);
  font: inherit; font-weight: 700; cursor: pointer; }
.ct-button.secondary { background: transparent; color: var(--ct-ink); border: 1px solid var(--ct-ink); }
.ct-button.link { min-width: 3rem; min-height: 3rem; padding: .3rem 0; border: 0; background: transparent; color: var(--ct-ink); text-decoration: underline; text-align: left; }
.ct-button[disabled] { opacity: .55; cursor: not-allowed; }
.ct-shell :is(a, button, input, select, [tabindex="-1"]):focus-visible { outline: 3px solid var(--ct-focus); outline-offset: 2px; }
.ct-list, .ct-plain { list-style: none; margin: .4rem 0 0; padding: 0; display: grid; gap: .45rem; }
.ct-list li { padding: .55rem .7rem; border-radius: .7rem; background: var(--ct-soft); display: grid; gap: .25rem; }
.ct-tariffs { list-style: none; margin: 0; padding: 0; display: grid; gap: .8rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }
.ct-tariff { border: 1px solid var(--ct-line); border-radius: .9rem; padding: .85rem; display: grid; gap: .45rem; align-content: start; background: var(--ct-soft); }
.ct-tariff.is-missing { border-style: dashed; }
.ct-tariff .ct-hint, .ct-tariff .ct-row { margin: 0; }
.ct-price { font-size: 1.15rem; font-weight: 800; margin: 0; }
.ct-versions { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.ct-version { border: 1px solid var(--ct-line); border-radius: .8rem; padding: .7rem; background: var(--ct-soft); }
.ct-version p { margin: .15rem 0; }
.ct-version.is-superseded { border-style: dashed; color: var(--ct-muted); }
.ct-version.is-superseded h4 > span:first-child { text-decoration: line-through; }
.ct-endline { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; font-size: 1.1rem; margin: 0 0 1rem; }
.ct-badge { display: inline-block; width: fit-content; padding: .12rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 800;
  background: var(--ct-info-bg); color: var(--ct-info); }
.ct-badge.warn { background: var(--ct-warn-bg); color: var(--ct-warn); }
.ct-badge.ok { background: var(--ct-ok-bg); color: var(--ct-ok); }
.ct-minor, .ct-gate { border: 2px solid var(--ct-accent); border-radius: .8rem; padding: .8rem; background: var(--ct-warn-bg); color: var(--ct-warn); }
.ct-minor p, .ct-gate { margin: .2rem 0; }
.ct-minor .ct-button.secondary { color: var(--ct-warn); border-color: var(--ct-warn); }
.ct-notice { border-left: 4px solid var(--ct-ink); }
.ct-detail { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); }
.ct-detail section { min-width: 0; }
.ct-meta { display: grid; grid-template-columns: max-content 1fr; gap: .25rem .8rem; margin: 0; }
.ct-meta dt { font-weight: 700; } .ct-meta dd { margin: 0; overflow-wrap: anywhere; }
.ct-plain li { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.ct-mail { display: grid; gap: .65rem; }
.ct-mail-status .ct-row { margin: 0; }
.ct-mail-dialog { width: min(calc(100% - 1rem), 40rem); max-height: calc(100dvh - 2rem); overflow: auto;
  border: 1px solid var(--ct-line); border-radius: 1rem; padding: 1rem; background: var(--ct-field); color: var(--ct-ink); }
.ct-mail-dialog::backdrop { background: rgb(10 20 38 / .72); }
.ct-mail-draft { white-space: pre-line; border: 1px solid var(--ct-line); border-radius: .8rem; padding: .8rem; background: var(--ct-soft); }
.ct-mail-draft p { margin: .5rem 0 0; }
.ct-test-mode { border: 2px solid var(--ct-warn); border-radius: .8rem; padding: .7rem; margin: 0;
  background: var(--ct-warn-bg); color: var(--ct-warn); font-weight: 800; overflow-wrap: anywhere; }
@media (max-width: 30rem) {
  .ct-shell { width: calc(100% - 1rem); padding: 1rem .8rem; border-radius: 1rem; }
  .ct-meta { grid-template-columns: 1fr; }
  .ct-form > .ct-button, .ct-row .ct-button, .ct-subform .ct-button { width: 100%; }
  .ct-mail-dialog { width: calc(100% - .5rem); max-height: calc(100dvh - .5rem); padding: .8rem; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }