:root {
  --ink: #24313a;
  --muted: #66737d;
  --line: #dce1e5;
  --bg: #f6f7f8;
  --card: #fff;
  --accent: #8b0801;
  --accent2: #a9140c;
  --nav: #5a6a77;
  --danger: #b42318;
  --ok: #166534;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
.top { background: var(--nav); color: #fff; box-shadow: 0 2px 8px #0002; }
.top-inner { max-width: 1100px; margin: auto; min-height: 64px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: #fff; text-decoration: none; font-size: 1.35rem; font-weight: 800; }
.brand span { font-weight: 500; }
.user { display: flex; align-items: center; gap: 16px; font-size: .92rem; }
.user form { margin: 0; }
.link-button { border: 0; background: none; color: #fff; text-decoration: underline; cursor: pointer; font: inherit; }
.page { max-width: 1100px; margin: 36px auto; padding: 0 20px 60px; }
h1, h2 { line-height: 1.2; margin-top: 0; }
h1 { font-size: clamp(1.8rem, 4vw, 2.55rem); margin-bottom: .4rem; }
h2 { font-size: 1.2rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 5px 18px #27313a0d; padding: 24px; }
.login-card { max-width: 480px; margin: 8vh auto; }
.stack { display: grid; gap: 10px; margin-top: 24px; }
label { display: block; font-weight: 700; margin-bottom: 6px; }
input, textarea { width: 100%; border: 1px solid #b9c1c7; border-radius: 8px; background: #fff; color: var(--ink); font: inherit; padding: 11px 12px; }
input:focus, textarea:focus { outline: 3px solid #8b080126; border-color: var(--accent); }
small, .meta { color: var(--muted); font-size: .88rem; }
.button, button { display: inline-flex; align-items: center; justify-content: center; border: 1px solid #aeb7be; border-radius: 8px; background: #fff; color: var(--ink); padding: 9px 14px; text-decoration: none; font: 600 .94rem/1.2 system-ui, -apple-system, "Segoe UI", sans-serif; cursor: pointer; }
.button:hover, button:hover { filter: brightness(.97); }
.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.primary:hover { background: var(--accent2); }
.danger { color: var(--danger); border-color: #e7aaa5; }
.headline-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.headline-row p { margin: .2rem 0; color: var(--muted); }
.notice { border-radius: 9px; padding: 12px 15px; margin: 0 0 20px; border: 1px solid; }
.notice.error { background: #fef3f2; border-color: #fecdca; color: #912018; }
.notice.success { background: #ecfdf3; border-color: #abefc6; color: var(--ok); }
.project-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.project-card h2 { margin-bottom: 10px; }
.url { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; color: #44515a; overflow-wrap: anywhere; font-size: .88rem; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.delete-form { margin: 0; }
.empty { text-align: center; padding: 52px 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 20px; }
.form-grid.single { grid-template-columns: 1fr; }
.editor-head { display: flex; justify-content: space-between; align-items: end; gap: 12px; }
.paste-row { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin: 0 0 18px; }
.paste-message { margin: -8px 0 18px; }
.paste-message:empty { display: none; }
.editor-form textarea { min-height: 520px; resize: vertical; border-radius: 8px; font: 14px/1.5 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace; tab-size: 2; white-space: pre; }
.editor-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 15px; }
.qr-dialog { width: min(96vw, 1100px); height: 96vh; max-width: none; max-height: none; padding: 20px; border: 0; border-radius: 16px; background: #fff; color: var(--ink); }
.qr-dialog::backdrop { background: #111c; }
.qr-dialog-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.qr-dialog-head h2 { margin: 0; font-size: clamp(1.4rem, 3vw, 2.2rem); }
.qr-close { border: 0; background: transparent; font-size: 2.5rem; line-height: 1; padding: 4px 10px; }
.qr-code { height: calc(100% - 150px); min-height: 300px; display: flex; align-items: center; justify-content: center; padding: 8px; }
.qr-code svg { display: block; width: min(72vw, 72vh); height: min(72vw, 72vh); max-width: 100%; }
.qr-url { margin: 0; text-align: center; font: 600 clamp(.85rem, 1.5vw, 1.1rem)/1.3 ui-monospace, SFMono-Regular, Consolas, monospace; overflow-wrap: anywhere; }
.qr-dialog-actions { display: flex; justify-content: center; gap: 12px; margin-top: 12px; }
.qr-dialog.fullscreen-view { position: fixed; inset: 0; width: 100vw; height: 100vh; margin: 0; border-radius: 0; }
.delete-dialog { width: min(92vw, 520px); padding: 26px; border: 0; border-radius: 14px; background: #fff; color: var(--ink); box-shadow: 0 20px 70px #0005; }
.delete-dialog::backdrop { background: #1119; }
.delete-dialog h2 { margin-bottom: 14px; }
.delete-dialog p { margin: 8px 0; }
.delete-dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }
.delete-confirm { background: var(--danger); border-color: var(--danger); color: #fff; }

@media (max-width: 700px) {
  .top-inner, .headline-row, .user { align-items: flex-start; }
  .top-inner { padding-block: 14px; }
  .headline-row, .top-inner { flex-direction: column; }
  .user { width: 100%; justify-content: space-between; }
  .form-grid { grid-template-columns: 1fr; }
  .paste-row { align-items: flex-start; }
  .qr-dialog { width: 100vw; height: 100vh; border-radius: 0; padding: 12px; }
  .qr-code { height: calc(100% - 170px); }
  .qr-code svg { width: min(88vw, 68vh); height: min(88vw, 68vh); }
  .page { margin-top: 24px; }
  .editor-form { padding: 15px; }
  .editor-form textarea { min-height: 420px; }
  .actions .button, .actions form { flex: 1; }
  .actions form button { width: 100%; }
}

.result-toggle { display: flex; align-items: flex-start; gap: 11px; margin: -4px 0 22px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 9px; background: #fafbfb; cursor: pointer; font-weight: 400; }
.result-toggle input { width: 18px; height: 18px; margin: 3px 0 0; flex: 0 0 auto; accent-color: var(--accent); }
.result-toggle span { display: grid; gap: 2px; }
.result-toggle strong { font-weight: 700; }
.result-toggle small { display: block; font-weight: 400; }
.results-table-wrap { overflow-x: auto; }
.results-table { width: 100%; border-collapse: collapse; }
.results-table th, .results-table td { padding: 12px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.results-table th { font-size: .86rem; color: var(--muted); }
.results-table details { min-width: 110px; }
.results-table summary { cursor: pointer; font-weight: 650; }
.results-table pre { max-width: 560px; max-height: 360px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; background: #f6f7f8; border: 1px solid var(--line); border-radius: 8px; padding: 12px; font-size: .82rem; }

/* Freundliche Ergebnisdarstellung */
.results-toolbar { display: flex; justify-content: flex-end; margin: -10px 0 12px; }
.results-toolbar form { margin: 0; }
.result-percent { margin-top: 2px; color: var(--muted); font-size: .84rem; font-weight: 500; }
.result-details summary { user-select: none; }
.result-detail-panel { width: min(620px, 70vw); margin-top: 12px; }
.result-summary-line { display: flex; justify-content: space-between; gap: 16px; padding: 12px 14px; margin-bottom: 10px; border-radius: 9px; background: #f6f7f8; }
.answer-list { display: grid; gap: 10px; }
.answer-card { padding: 14px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.answer-card.is-correct { border-left: 4px solid #22863a; }
.answer-card.is-wrong { border-left: 4px solid #b42318; }
.answer-head { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 7px; }
.answer-status { font-size: .9rem; font-weight: 750; }
.is-correct .answer-status { color: #166534; }
.is-wrong .answer-status { color: #b42318; }
.answer-task { margin-bottom: 10px; }
.answer-given { display: flex; gap: 10px; align-items: baseline; padding-top: 9px; border-top: 1px solid #edf0f2; }
.answer-given span { color: var(--muted); font-size: .86rem; }
.answer-points { margin-top: 5px; color: var(--muted); font-size: .86rem; }
.result-delete-form { display: flex; justify-content: flex-end; margin-top: 12px; }
@media (max-width: 700px) {
  .result-detail-panel { width: 76vw; }
  .result-summary-line, .answer-head { flex-direction: column; gap: 4px; }
}

/* AIS-Ergebnisstandard: kompakte Hilfe für Lehrkräfte */
.results-prompt-box { display: flex; align-items: center; gap: 12px; margin: -12px 0 22px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 9px; background: #fff; }
.results-prompt-box[hidden] { display: none; }
.results-prompt-box > div { display: grid; gap: 1px; flex: 1; }
.results-prompt-box small { color: var(--muted); font-weight: 400; }
.results-prompt-box .meta { min-width: 58px; }
@media (max-width: 700px) {
  .results-prompt-box { align-items: flex-start; flex-wrap: wrap; }
}

/* Projektbezogene Bilder */
.project-images-card { margin-top: 20px; }
.project-images-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.project-images-head h2 { margin-bottom: 3px; }
.project-images-head p { margin: 0; }
.image-upload-form { display: flex; align-items: center; gap: 10px; margin-top: 16px; }
.image-upload-form input[type="file"] { max-width: 460px; }
.project-images-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 14px; margin-top: 18px; }
.project-image-item { display: grid; gap: 9px; padding: 10px; border: 1px solid var(--line); border-radius: 10px; background: #fafbfb; }
.project-image-item img { width: 100%; height: 150px; object-fit: contain; background: #fff; border: 1px solid #edf0f2; border-radius: 7px; }
.project-image-info { display: grid; gap: 7px; }
.project-image-info strong { overflow-wrap: anywhere; font-size: .9rem; }
.project-image-item form { margin: 0; }
.project-image-item form button { width: 100%; }
#image-copy-message { margin: 12px 0 0; }
@media (max-width: 700px) {
  .project-images-head, .image-upload-form { align-items: stretch; flex-direction: column; }
  .image-upload-form input[type="file"] { max-width: none; }
}