/* --- Variables --- */
:root {
  --green: #0a4;
  --green-dark: #083;
  --green-light: #e8f5ec;
  --white: #fff;
  --black: #000;
  --gray: #eee;
  --gray-mid: #ccc;
  --gray-text: #666;
  --red: #d32;
  --orange: #e80;
  --font: 'Ubuntu', 'Montserrat', sans-serif;
  --radius: 1rem;
  --radius-sm: .5rem;
}

@font-face { font-family: 'Ubuntu'; font-style: normal; font-weight: normal; src: url('https://gcm.schule/fonts/ubuntu-r.woff2') format('woff2'); }
@font-face { font-family: 'Ubuntu'; font-style: normal; font-weight: bold; src: url('https://gcm.schule/fonts/ubuntu-b.woff2') format('woff2'); }

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--white);
  color: var(--black);
}

input, button, textarea, select { font: inherit; }

::selection { background: var(--green); color: var(--white); }

a { color: var(--green); }

/* --- Header --- */
.cis-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--green);
  color: var(--white);
  height: 3rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 1rem;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  text-decoration: none;
  color: var(--white);
  font-weight: bold;
  font-size: 1.1rem;
}

.header-logo { font-size: 1.3rem; }

.header-nav {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.nav-user {
  font-weight: bold;
  opacity: .85;
  font-size: .9rem;
}

.nav-link {
  color: var(--white);
  text-decoration: none;
  padding: .25rem .6rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  transition: background .15s;
}
.nav-link:hover { background: rgba(255,255,255,.2); }
.nav-admin { background: rgba(255,255,255,.15); }

.nav-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--white);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .55rem 1.25rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-weight: bold;
  text-decoration: none;
  transition: filter .15s;
  font-size: 1rem;
}
.btn:hover { filter: brightness(1.1); }

.btn-primary   { background: var(--green); color: var(--white); }
.btn-secondary { background: var(--gray); color: var(--black); }
.btn-warn      { background: var(--orange); color: var(--white); }
.btn-ok        { background: var(--green); color: var(--white); }
.btn-danger    { background: var(--red); color: var(--white); }
.btn-full      { width: 100%; }
.btn-attendee  { width: 100%; text-align: left; background: var(--tile); border: 2px solid var(--border); color: var(--text); margin-bottom: .5rem; font-size: 1rem; }
.btn-attendee:hover { border-color: var(--green); color: var(--green); background: var(--tile); }
.attendee-list { display: flex; flex-direction: column; margin-top: 1rem; }
.btn-sm        { padding: .35rem .8rem; font-size: .85rem; }
.btn-xs        { padding: .2rem .55rem; font-size: .78rem; font-weight: normal; border-radius: 4px; }

/* --- Alerts --- */
.alert {
  padding: .75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-weight: bold;
}
.alert-error { background: #fde; color: var(--red); }
.alert-ok    { background: var(--green-light); color: var(--green-dark); }

/* --- Forms --- */
.form-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1rem;
}
.form-page.wide { max-width: 700px; margin: 0 auto; align-items: stretch; }

.form-card {
  background: var(--white);
  border: 1px solid var(--gray-mid);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.form-page.wide .form-card { max-width: none; }

.form-card h1 { margin: 0 0 .25rem; font-size: 1.5rem; }
.form-card h2 { margin: 0 0 1rem; font-size: 1.2rem; }
.form-sub { color: var(--gray-text); margin: 0 0 1.5rem; font-size: .9rem; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  margin-bottom: 1rem;
}
.form-group label { font-size: .85rem; font-weight: bold; color: var(--gray-text); }
.form-group input,
.form-group textarea,
.form-group select {
  padding: .6rem .8rem;
  border: 1.5px solid var(--gray-mid);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .15s;
  width: 100%;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--green); }

.form-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.form-row .form-group { flex: 1; min-width: 150px; }

/* --- Leaderboard --- */
.lb-page {
  max-width: 700px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

.gaming-banner {
  text-align: center;
  padding: 1rem;
  border-radius: var(--radius);
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 1rem;
}
.gaming-active { background: var(--green); color: var(--white); }
.gaming-locked { background: var(--gray); color: var(--black); }

.progress-wrap { margin-bottom: 1.5rem; }
.progress-bar {
  height: 1.2rem;
  background: var(--gray);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: .4rem;
}
.progress-fill {
  height: 100%;
  background: var(--green);
  border-radius: 999px;
  transition: width .5s ease;
  min-width: 2px;
}
.progress-label {
  text-align: center;
  font-size: .85rem;
  color: var(--gray-text);
}
.lb-total-pts-count {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--black);
  line-height: 1;
}

.lb-scroll {
  overflow-y: auto;
  max-height: calc(100dvh - 17rem);
  min-height: 3rem;
}
.lb-page.dashboard-mode .lb-scroll {
  overflow: hidden;
}

.lb-container { background: var(--white); }

.lb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
}
.lb-table th {
  text-align: left;
  padding: .6rem .75rem;
  font-size: .8rem;
  color: var(--gray-text);
  border-bottom: 2px solid var(--gray);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.lb-table td { padding: .7rem .75rem; border-bottom: 1px solid var(--gray); }
.lb-table tr:last-child td { border-bottom: none; }
.lb-table tr.lb-me td { background: var(--green-light); font-weight: bold; }
.lb-rank { font-size: 1.2rem; width: 3rem; }
.lb-pts  { font-weight: bold; text-align: right; color: var(--green); }
.lb-name { word-break: break-word; }
.lb-empty { text-align: center; color: var(--gray-text); padding: 2rem; }

.lb-scroll-toggle-wrap {
  text-align: right;
  margin-top: .75rem;
}

.lb-cta {
  text-align: center;
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--green-light);
  border-radius: var(--radius);
}
.lb-cta p { color: var(--gray-text); margin: .75rem 0 0; }

/* --- Scan result --- */
.scan-result { text-align: center; }
.scan-result h1 { font-size: 2rem; margin: .5rem 0; }
.scan-icon {
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin: 0 auto 1rem;
}
.scan-ok   { background: var(--green); color: var(--white); }
.scan-warn { background: var(--orange); color: var(--white); }
.scan-err  { background: var(--red); color: var(--white); }

/* --- Workshop list --- */
.activity-list { display: flex; flex-direction: column; gap: .75rem; }
.activity-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .75rem 1rem;
  background: var(--gray);
  border-radius: var(--radius-sm);
}
.activity-info { display: flex; flex-direction: column; gap: .25rem; }
.activity-desc { font-size: .85rem; color: var(--gray-text); }

.badge {
  display: inline-block;
  padding: .15rem .5rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: bold;
}
.badge-ok      { background: var(--green); color: var(--white); }
.badge-pending { background: var(--orange); color: var(--white); }

/* --- QR --- */
.qr-card { text-align: center; }
.qr-img {
  display: block;
  margin: 1rem auto;
  width: 220px;
  height: 220px;
  image-rendering: pixelated;
  border: 4px solid var(--black);
  border-radius: var(--radius-sm);
}
.qr-url {
  display: block;
  font-size: .75rem;
  color: var(--gray-text);
  word-break: break-all;
  margin: .5rem 0;
}
.qr-pts { color: var(--green-dark); font-size: .95rem; }
.last-scan-info {
  margin-top: .75rem;
  padding: .6rem .9rem;
  background: var(--green-light);
  border-radius: var(--radius-sm);
  font-size: .88rem;
  color: var(--green-dark);
}

/* --- Admin --- */
.admin-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}
.admin-page h1 { font-size: 1.8rem; margin-bottom: 1.5rem; }

.admin-stats {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.stat-card {
  flex: 1;
  min-width: 120px;
  background: var(--gray);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
}
.stat-val { font-size: 2rem; font-weight: bold; color: var(--green); }
.stat-lbl { font-size: .8rem; color: var(--gray-text); margin-top: .25rem; }

.admin-section {
  background: var(--white);
  border: 1px solid var(--gray-mid);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.admin-section h2 { margin: 0 0 1rem; font-size: 1.15rem; }
.admin-form { display: flex; flex-direction: column; gap: 0; }

.admin-table-wrap { overflow-x: auto; }
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
.admin-table th {
  text-align: left;
  padding: .5rem .75rem;
  font-size: .78rem;
  color: var(--gray-text);
  border-bottom: 2px solid var(--gray);
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}
.admin-table td {
  padding: .6rem .75rem;
  border-bottom: 1px solid var(--gray);
  vertical-align: middle;
}
.admin-table tr:last-child td { border-bottom: none; }
.action-col { white-space: nowrap; display: flex; gap: .35rem; align-items: center; }

.inline-form { display: flex; gap: .35rem; align-items: center; }
.pts-input {
  width: 80px;
  padding: .2rem .4rem;
  border: 1px solid var(--gray-mid);
  border-radius: 4px;
  font-size: .85rem;
}

.muted { color: var(--gray-text); font-size: .85rem; }

/* --- Responsive --- */
@media (max-width: 600px) {
  .header-title { display: none; }
  .form-card { padding: 1.25rem; }
  .admin-stats { gap: .5rem; }
  .stat-card { padding: .75rem .5rem; }
  .stat-val { font-size: 1.5rem; }
}