/* ============================================
   Berichtsheft — minimal design system
   ============================================ */

/* Tokens — light */
:root {
  /* surfaces */
  --bg:           #fafafa;
  --bg-elev:      #ffffff;
  --bg-sunken:    #f4f4f5;
  --bg-hover:     #f4f4f5;
  --bg-active:    #ececef;
  /* text */
  --fg:           #18181b;
  --fg-muted:     #71717a;
  --fg-subtle:    #a1a1aa;
  --fg-on-accent: #ffffff;
  /* borders */
  --border:       #e4e4e7;
  --border-strong:#d4d4d8;
  /* accents */
  --accent:       #6366f1;
  --accent-hover: #4f46e5;
  --accent-soft:  #eef2ff;
  /* semantic */
  --success:      #16a34a;
  --warning:      #d97706;
  --danger:       #dc2626;
  --danger-soft:  #fef2f2;
  /* misc */
  --shadow-sm:    0 1px 2px rgba(0,0,0,0.04);
  --shadow:       0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg:    0 10px 25px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.04);
  --radius-sm:    6px;
  --radius:       8px;
  --radius-lg:    12px;
  --sidebar-w:    232px;
}

/* Tokens — dark */
[data-theme="dark"] {
  --bg:           #0a0a0b;
  --bg-elev:      #131316;
  --bg-sunken:    #08080a;
  --bg-hover:     #1d1d22;
  --bg-active:    #26262d;
  --fg:           #f4f4f5;
  --fg-muted:     #a1a1aa;
  --fg-subtle:    #71717a;
  --border:       #26262d;
  --border-strong:#3f3f46;
  --accent:       #818cf8;
  --accent-hover: #a5b4fc;
  --accent-soft:  #1e1b4b;
  --danger-soft:  #2a1212;
  --shadow-sm:    0 1px 2px rgba(0,0,0,0.5);
  --shadow:       0 1px 3px rgba(0,0,0,0.5), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-lg:    0 10px 25px rgba(0,0,0,0.5), 0 4px 6px rgba(0,0,0,0.3);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI",
               Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; padding: 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}
.sidebar {
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 16px 12px;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.sidebar .brand {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px 16px;
  font-weight: 600; font-size: 15px;
  color: var(--fg);
}
.sidebar .brand-dot {
  width: 22px; height: 22px;
  background: var(--accent);
  border-radius: 6px;
  display: grid; place-items: center;
  color: var(--fg-on-accent);
  font-size: 12px; font-weight: 700;
}
.sidebar .nav {
  display: flex; flex-direction: column; gap: 2px;
  flex: 1;
}
.sidebar .nav-section {
  font-size: 11px;
  font-weight: 600;
  color: var(--fg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 16px 10px 6px;
}
.sidebar a.nav-item, .sidebar .nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  color: var(--fg-muted);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  transition: background .12s, color .12s;
}
.sidebar a.nav-item:hover { background: var(--bg-hover); color: var(--fg); }
.sidebar a.nav-item.active { background: var(--bg-active); color: var(--fg); }
.sidebar a.nav-item svg { width: 16px; height: 16px; opacity: .8; }

.main {
  min-width: 0;
  display: flex; flex-direction: column;
}
.topbar {
  height: 52px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  background: var(--bg);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(180%) blur(8px);
}
.topbar-title { font-weight: 600; font-size: 14.5px; }
.topbar-actions { display: flex; align-items: center; gap: 8px; }

.content {
  padding: 28px 32px 64px;
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
}
.content-narrow { max-width: 720px; }

/* Typography */
h1, h2, h3 { color: var(--fg); font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 24px; margin-bottom: 8px; }
h2 { font-size: 18px; margin-bottom: 6px; }
h3 { font-size: 15px; margin-bottom: 4px; }
.muted { color: var(--fg-muted); }
.subtle { color: var(--fg-subtle); }
.text-sm { font-size: 12.5px; }
.text-xs { font-size: 11.5px; }
.mono { font-family: ui-monospace, "JetBrains Mono", "SF Mono", Consolas, monospace; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  color: var(--fg);
  font-weight: 500;
  font-size: 13.5px;
  transition: background .12s, border-color .12s, transform .06s;
  user-select: none;
}
.btn:hover { background: var(--bg-hover); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn[disabled], .btn.is-loading { opacity: .55; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  color: var(--fg-on-accent);
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--bg-hover); }
.btn-danger { color: var(--danger); border-color: var(--border-strong); }
.btn-danger:hover { background: var(--danger-soft); border-color: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12.5px; }
.btn-icon { width: 32px; height: 32px; padding: 0; }
.btn svg { width: 14px; height: 14px; }

/* Inputs */
.input, .textarea, .select {
  display: block;
  width: 100%;
  padding: 8px 11px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  color: var(--fg);
  font-size: 14px;
  transition: border-color .12s, box-shadow .12s;
}
.input-lg {
  padding: 11px 14px;
  font-size: 15.5px;
  font-weight: 500;
}
.textarea { min-height: 92px; resize: vertical; line-height: 1.55; font-family: inherit; }
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.input::placeholder, .textarea::placeholder { color: var(--fg-subtle); }
.label {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--fg-muted);
  margin-bottom: 5px;
}
.field { margin-bottom: 16px; }
.field-row { display: flex; gap: 12px; align-items: end; }
.field-row > * { flex: 1; }
.help-text { font-size: 12px; color: var(--fg-muted); margin-top: 4px; }
.error-text { font-size: 12px; color: var(--danger); margin-top: 4px; }

/* Cards */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
}
.card-title { font-weight: 600; font-size: 14.5px; }
.card + .card { margin-top: 14px; }

/* Badges */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 500;
  background: var(--bg-sunken);
  color: var(--fg-muted);
  border: 1px solid var(--border);
}
.badge-accent { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.badge-success { background: rgba(22,163,74,.1); color: var(--success); border-color: transparent; }
.badge-warning { background: rgba(217,119,6,.1); color: var(--warning); border-color: transparent; }
.badge-danger { background: var(--danger-soft); color: var(--danger); border-color: transparent; }

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.table th, .table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.table th {
  font-weight: 500;
  color: var(--fg-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  background: var(--bg-sunken);
}
.table tbody tr:hover { background: var(--bg-hover); }

/* KW Grid (dashboard) */
.kw-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 10px;
}
.kw-cell {
  display: flex; flex-direction: column; gap: 6px;
  padding: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--fg);
  transition: border-color .12s, transform .06s;
  position: relative;
  min-height: 78px;
}
.kw-cell:hover {
  border-color: var(--border-strong);
  text-decoration: none;
  transform: translateY(-1px);
}
.kw-cell .kw-num { font-weight: 600; font-size: 13px; }
.kw-cell .kw-meta { font-size: 11px; color: var(--fg-muted); }
.kw-cell .kw-dot {
  position: absolute; top: 10px; right: 10px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--border-strong);
}
.kw-cell.kw-partial .kw-dot { background: var(--warning); }
.kw-cell.kw-complete .kw-dot { background: var(--success); }
.kw-cell.kw-current { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.kw-cell.kw-future { opacity: .55; pointer-events: none; }
.kw-cell .kw-type { font-size: 11px; }

/* Year selector pills */
.year-tabs { display: inline-flex; gap: 4px; padding: 3px; background: var(--bg-sunken); border-radius: var(--radius-sm); margin-bottom: 22px; }
.year-tabs a {
  padding: 5px 12px; border-radius: 5px;
  color: var(--fg-muted); font-size: 13px; font-weight: 500;
  text-decoration: none;
}
.year-tabs a.active { background: var(--bg-elev); color: var(--fg); box-shadow: var(--shadow-sm); }
.year-tabs a:hover { color: var(--fg); text-decoration: none; }

/* Toggle (segmented control) */
.segmented {
  display: inline-flex;
  background: var(--bg-sunken);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
}
.segmented input { display: none; }
.segmented label {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--fg-muted);
  cursor: pointer;
  font-weight: 500;
}
.segmented input:checked + label {
  background: var(--bg-elev);
  color: var(--fg);
  box-shadow: var(--shadow-sm);
}

/* Day card (week editor) */
.day-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
  padding: 16px;
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  margin-bottom: 12px;
  transition: border-color .12s;
}
.day-card.is-empty { border-style: dashed; background: var(--bg); }
.day-card.is-generating { border-color: var(--accent); }
.day-card.is-hidden { display: none; }
.day-card.is-weekend .day-name::after {
  content: "Wochenende";
  display: inline-block;
  margin-left: 6px;
  font-size: 10.5px;
  font-weight: 500;
  color: var(--fg-subtle);
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--bg-sunken);
  vertical-align: middle;
}
.day-card .day-head { display: flex; flex-direction: column; gap: 4px; }
.day-card .day-name { font-weight: 600; font-size: 14px; }
.day-card .day-date { font-size: 12px; color: var(--fg-muted); }
.day-card .day-body { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.day-card .day-row {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 14px;
}
.day-card .day-actions {
  display: flex; gap: 8px; align-items: center; justify-content: space-between;
  flex-wrap: wrap;
}
.day-card .ai-feedback { font-size: 12px; color: var(--fg-muted); }
.day-card .ai-feedback.is-error { color: var(--danger); }

@media (max-width: 720px) {
  .day-card { grid-template-columns: 1fr; }
  .day-card .day-row { grid-template-columns: 1fr; }
  .school-day .fach-row-head { grid-template-columns: 1fr; }
}

/* School week — multi-Fach rows */
.school-day { background: var(--bg-elev); }
.school-day .day-body { gap: 14px; }
.fach-list { display: flex; flex-direction: column; gap: 10px; }
.fach-row {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  background: var(--bg);
  display: flex; flex-direction: column; gap: 8px;
}
.fach-row-head {
  display: grid;
  grid-template-columns: 200px 1fr 80px 32px;
  gap: 8px;
  align-items: stretch;
}
.fach-row .fach-name {
  font-weight: 600;
  background: var(--bg-elev);
}
.fach-row-head .btn-icon { align-self: center; }
.fach-add-btn {
  align-self: flex-start;
  border-style: dashed;
  color: var(--fg-muted);
}
.fach-add-btn:hover { color: var(--fg); }
.school-day.is-empty .fach-list:empty + .fach-add-btn { background: var(--accent-soft); color: var(--accent); border-style: solid; border-color: transparent; }

/* Shimmer for generating state */
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
.shimmer {
  background: linear-gradient(90deg, var(--bg-sunken) 0%, var(--bg-hover) 50%, var(--bg-sunken) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
  border-radius: var(--radius-sm);
  color: transparent !important;
  pointer-events: none;
}

/* Sticky fill-week pill */
.fill-pill {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 20;
  box-shadow: var(--shadow-lg);
}

/* Flash messages */
.flash {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 13.5px;
}
.flash-success { background: rgba(22,163,74,.08); color: var(--success); border: 1px solid rgba(22,163,74,.2); }
.flash-error   { background: var(--danger-soft); color: var(--danger); border: 1px solid rgba(220,38,38,.2); }
.flash-info    { background: var(--accent-soft); color: var(--accent); border: 1px solid transparent; }

/* Auth pages */
.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--bg);
}
.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
}
.auth-card .brand { justify-content: center; padding-bottom: 24px; }

/* Utilities */
.row { display: flex; align-items: center; gap: 10px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.col { display: flex; flex-direction: column; gap: 10px; }
.gap-2 { gap: 8px; } .gap-4 { gap: 16px; } .gap-6 { gap: 24px; }
.mt-2 { margin-top: 8px; } .mt-4 { margin-top: 16px; } .mt-6 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; } .mb-4 { margin-bottom: 16px; } .mb-6 { margin-bottom: 24px; }
.w-full { width: 100%; }
.hidden { display: none !important; }

/* Print view */
@media print {
  .sidebar, .topbar, .fill-pill, .no-print { display: none !important; }
  .app { grid-template-columns: 1fr; }
  .content { padding: 0; max-width: none; }
  .card, .day-card { border: 1px solid #000; box-shadow: none; break-inside: avoid; }
  body { background: #fff; color: #000; font-size: 11pt; }
}

/* Copy feedback */
.copy-flash {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11.5px;
  color: var(--success);
  opacity: 0;
  transition: opacity .2s;
}
.copy-flash.show { opacity: 1; }

/* PDF (used by Dompdf, simplified for it) */
.pdf-page { font-family: DejaVu Sans, sans-serif; font-size: 10pt; color: #000; }