/* =============================================
   SCHULUNGSPORTAL – Stylesheet
   Design: Clean & Modern, Inter + DM Serif
   ============================================= */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink:       #111318;
  --ink-muted: #6b7280;
  --ink-light: #9ca3af;
  --surface:   #ffffff;
  --surface-2: #f8f9fb;
  --surface-3: #f1f3f6;
  --border:    #e4e7ec;
  --accent:    #1d4ed8;
  --accent-2:  #dbeafe;
  --ok:        #16a34a;
  --ok-bg:     #dcfce7;
  --fail:      #dc2626;
  --fail-bg:   #fee2e2;
  --warn:      #b45309;
  --warn-bg:   #fef3c7;
  --radius:    10px;
  --radius-lg: 16px;
  --shadow:    0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 1px 3px rgba(0,0,0,.04);
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--surface-2);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- HEADER ---- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 15px;
  flex-shrink: 0;
}
.main-nav {
  display: flex;
  gap: .25rem;
  flex: 1;
}
.main-nav a {
  text-decoration: none;
  color: var(--ink-muted);
  font-size: 14px;
  padding: .35rem .75rem;
  border-radius: 6px;
  transition: background .15s, color .15s;
}
.main-nav a:hover { background: var(--surface-3); color: var(--ink); }
.main-nav a.active { background: var(--accent-2); color: var(--accent); font-weight: 500; }
.header-user {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
}
.user-name { font-size: 14px; color: var(--ink-muted); }

/* ---- MAIN ---- */
.page-main {
  flex: 1;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

/* ---- FOOTER ---- */
.site-footer {
  text-align: center;
  padding: 1.25rem;
  font-size: 13px;
  color: var(--ink-light);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

/* ---- PAGE TITLES ---- */
.page-title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: .5rem;
}
.page-subtitle {
  color: var(--ink-muted);
  font-size: 15px;
  margin-bottom: 2rem;
}

/* ---- CARDS ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.75rem;
}
.card + .card { margin-top: 1rem; }
.card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.card-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--accent-2);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.card-icon svg { width: 20px; height: 20px; }
.card-title { font-size: 16px; font-weight: 600; }
.card-desc { font-size: 13px; color: var(--ink-muted); margin-top: .15rem; }

/* ---- TRAINING GRID ---- */
.training-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}
.training-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  transition: box-shadow .15s, transform .15s;
}
.training-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.training-card-top {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.training-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.training-icon.blue { background: var(--accent-2); color: var(--accent); }
.training-icon.green { background: var(--ok-bg); color: var(--ok); }
.training-icon.amber { background: var(--warn-bg); color: var(--warn); }
.training-icon svg { width: 24px; height: 24px; }
.training-name { font-weight: 600; font-size: 15px; }
.training-duration { font-size: 13px; color: var(--ink-muted); }

/* ---- BADGES ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: 12px;
  font-weight: 500;
  padding: .25rem .65rem;
  border-radius: 20px;
}
.badge-ok      { background: var(--ok-bg);   color: var(--ok); }
.badge-fail    { background: var(--fail-bg);  color: var(--fail); }
.badge-expired { background: var(--warn-bg);  color: var(--warn); }
.badge-pending { background: var(--surface-3); color: var(--ink-muted); }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem 1.25rem;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background .15s, opacity .15s;
  line-height: 1;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { opacity: .88; }
.btn-secondary { background: var(--surface); border-color: var(--border); color: var(--ink); }
.btn-secondary:hover { background: var(--surface-3); }
.btn-danger { background: var(--fail); color: #fff; }
.btn-danger:hover { opacity: .88; }
.btn-ghost { background: none; border: none; color: var(--ink-muted); font-size: 14px; cursor: pointer; padding: .35rem .6rem; border-radius: 6px; text-decoration: none; }
.btn-ghost:hover { background: var(--surface-3); color: var(--ink); }
.btn-sm { padding: .4rem .85rem; font-size: 13px; }

/* ---- FORMS ---- */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; font-size: 14px; font-weight: 500; margin-bottom: .4rem; }
.form-hint { font-size: 12px; color: var(--ink-muted); margin-top: .25rem; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: .6rem .85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  background: var(--surface);
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
  appearance: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(29,78,216,.12);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .75rem center;
  padding-right: 2.25rem;
}

/* ---- TABLE ---- */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th {
  text-align: left;
  font-weight: 500;
  font-size: 12px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: .6rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
td {
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface-2); }

/* ---- ALERTS ---- */
.alert {
  padding: .85rem 1.1rem;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 1.25rem;
  border: 1px solid transparent;
}
.alert-error   { background: var(--fail-bg);  color: var(--fail);  border-color: #fca5a5; }
.alert-success { background: var(--ok-bg);    color: var(--ok);    border-color: #86efac; }
.alert-info    { background: var(--accent-2); color: var(--accent); border-color: #93c5fd; }

/* ---- LOGIN PAGE ---- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-2);
  padding: 2rem;
}
.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
}
.login-logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-weight: 700;
  font-size: 17px;
  margin-bottom: 1.75rem;
  color: var(--ink);
}

/* ---- QUIZ ---- */
.quiz-question {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1rem;
}
.quiz-q-text { font-weight: 500; margin-bottom: 1rem; }
.quiz-options { display: flex; flex-direction: column; gap: .5rem; }
.quiz-option {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .65rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: background .12s, border-color .12s;
}
.quiz-option:hover { background: var(--surface-3); border-color: var(--accent); }
.quiz-option input[type=radio] { accent-color: var(--accent); }

/* ---- TRAINING CONTENT ---- */
.training-content {
  max-width: 720px;
}
.training-content h2 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.4rem;
  font-weight: 400;
  margin: 1.75rem 0 .6rem;
}
.training-content h3 { font-size: 1rem; font-weight: 600; margin: 1.25rem 0 .4rem; }
.training-content p  { margin-bottom: .85rem; color: #374151; }
.training-content ul, .training-content ol { padding-left: 1.5rem; margin-bottom: .85rem; }
.training-content li { margin-bottom: .35rem; }
.training-content .highlight-box {
  background: var(--accent-2);
  border-left: 3px solid var(--accent);
  padding: .85rem 1.1rem;
  border-radius: 0 8px 8px 0;
  margin: 1rem 0;
  font-size: 14px;
}

/* ---- PROGRESS ---- */
.progress-bar-wrap {
  background: var(--surface-3);
  border-radius: 20px;
  height: 6px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}
.progress-bar-fill {
  background: var(--accent);
  height: 100%;
  border-radius: 20px;
  transition: width .4s ease;
}

/* ---- ADMIN STATS ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
}
.stat-num {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2rem;
  line-height: 1;
  margin-bottom: .25rem;
}
.stat-label { font-size: 13px; color: var(--ink-muted); }
.stat-ok   .stat-num { color: var(--ok); }
.stat-fail .stat-num { color: var(--fail); }
.stat-warn .stat-num { color: var(--warn); }

/* ---- TABS ---- */
.tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem; }
.tab-btn {
  background: none;
  border: none;
  padding: .65rem 1rem;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  color: var(--ink-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color .15s;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 500; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---- MODAL ---- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,.18);
  width: 100%;
  max-width: 480px;
  padding: 2rem;
}
.modal-title { font-size: 17px; font-weight: 600; margin-bottom: 1.25rem; }
.modal-footer { display: flex; justify-content: flex-end; gap: .75rem; margin-top: 1.5rem; }

/* ---- UTILS ---- */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: .5rem; }
.gap-3 { gap: .75rem; }
.mb-1 { margin-bottom: .25rem; }
.mb-2 { margin-bottom: .5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1rem; }
.text-muted { color: var(--ink-muted); font-size: 13px; }
.text-sm { font-size: 13px; }
.font-500 { font-weight: 500; }
.hidden { display: none !important; }

/* ---- RESPONSIVE ---- */
@media (max-width: 640px) {
  .header-inner { gap: 1rem; }
  .main-nav { display: none; }
  .page-title { font-size: 1.5rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}