:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-strong: #f9fafb;
  --ink: #101827;
  --muted: #667085;
  --line: #e5e7eb;
  --primary: #111827;
  --primary-soft: #eef2ff;
  --accent: #2563eb;
  --danger: #b42318;
  --danger-soft: #fff1f0;
  --ok: #067647;
  --ok-soft: #ecfdf3;
  --warn: #b54708;
  --warn-soft: #fffaeb;
  --shadow: 0 20px 55px rgba(16, 24, 40, 0.08);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --container: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 32rem),
    radial-gradient(circle at top right, rgba(17, 24, 39, 0.12), transparent 36rem),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

.app-shell {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.app-header {
  position: sticky;
  top: 12px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px;
  margin-bottom: 28px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(229, 231, 235, 0.86);
  border-radius: 999px;
  box-shadow: 0 18px 60px rgba(16, 24, 40, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  min-width: 220px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 16px;
  color: #ffffff;
  background: linear-gradient(135deg, #111827 0%, #2563eb 100%);
  font-weight: 800;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.brand strong { display: block; letter-spacing: -0.02em; }
.brand small { display: block; color: var(--muted); font-size: 0.78rem; }

.top-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  overflow-x: auto;
  padding: 2px;
}

.nav-button {
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  color: var(--muted);
  background: transparent;
  white-space: nowrap;
}

.nav-button:hover,
.nav-button:focus-visible {
  color: var(--ink);
  background: var(--surface-strong);
  outline: none;
}

.nav-button.is-active {
  color: #ffffff;
  background: var(--primary);
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.18);
}

.view { display: none; }
.view.is-active { display: block; animation: fadeIn 160ms ease-out; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.8fr);
  gap: 18px;
}

.hero-card,
.status-card,
.section-card,
.metric-card,
.day-card,
.exercise-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(229, 231, 235, 0.9);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: clamp(28px, 5vw, 56px);
  min-height: 280px;
  background:
    linear-gradient(135deg, rgba(17, 24, 39, 0.95), rgba(37, 99, 235, 0.86)),
    var(--primary);
  color: #ffffff;
  overflow: hidden;
  position: relative;
}

.hero-card::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  right: -80px;
  top: -80px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

.hero-card h1,
.page-heading h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.hero-text {
  max-width: 720px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.06rem;
}

.hero-actions,
.button-row,
.inline-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-actions { margin-top: 28px; }

.status-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
}

.status-card h2 { margin: 0; font-size: 1.8rem; letter-spacing: -0.04em; }

.eyebrow {
  margin: 0 0 8px;
  color: #2563eb;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-card .eyebrow { color: rgba(255, 255, 255, 0.72); }
.muted { color: var(--muted); margin: 0; }

.primary-action,
.secondary-action,
.danger-action,
.file-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 999px;
  padding: 10px 16px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  transition: transform 130ms ease, box-shadow 130ms ease, background 130ms ease;
}

.primary-action {
  color: #ffffff;
  background: #2563eb;
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.28);
}

.secondary-action,
.file-button {
  color: var(--ink);
  background: var(--surface);
  border-color: var(--line);
}

.hero-card .secondary-action {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.22);
}

.danger-action {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: #ffd2cc;
}

.primary-action:hover,
.secondary-action:hover,
.danger-action:hover,
.file-button:hover {
  transform: translateY(-1px);
}

.file-button { position: relative; overflow: hidden; cursor: pointer; }
.file-button input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.date-picker,
.search-input,
.tracking-table input,
.tracking-table select,
.tracking-table textarea,
.reflection-card textarea,
.code-editor {
  width: 100%;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #ffffff;
  outline: none;
}

.date-picker,
.search-input {
  min-height: 44px;
  padding: 10px 13px;
}

.date-picker-label { color: var(--muted); font-size: 0.85rem; font-weight: 700; }

.date-picker:focus,
.search-input:focus,
.tracking-table input:focus,
.tracking-table select:focus,
.tracking-table textarea:focus,
.reflection-card textarea:focus,
.code-editor:focus {
  border-color: rgba(37, 99, 235, 0.75);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.metric-card { padding: 18px; border-radius: var(--radius-lg); }
.metric-card strong { display: block; font-size: 2rem; letter-spacing: -0.05em; }
.metric-card span { color: var(--muted); font-size: 0.9rem; }

.section-card { padding: 22px; margin-top: 18px; }
.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 18px;
}
.section-heading h2 { margin: 0; font-size: 1.55rem; letter-spacing: -0.035em; }
.page-heading { margin-bottom: 20px; }
.compact-heading { margin-bottom: 12px; }

.soft-badge,
.category-badge,
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.78rem;
  font-weight: 800;
  white-space: nowrap;
}
.soft-badge { color: #344054; background: #f2f4f7; }
.category-badge { color: #1d2939; background: #eef2ff; }
.status-pill.status-erledigt { color: var(--ok); background: var(--ok-soft); }
.status-pill.status-angepasst { color: var(--warn); background: var(--warn-soft); }
.status-pill.status-ausgelassen { color: var(--danger); background: var(--danger-soft); }
.status-pill.status-offen { color: #475467; background: #f2f4f7; }

.timeline {
  position: relative;
  display: grid;
  gap: 12px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
}

.time-token {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding-top: 15px;
  color: var(--muted);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.timeline-content {
  position: relative;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
}

.timeline-content::before {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  left: -22px;
  top: 22px;
  border: 3px solid #ffffff;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--line);
}

.timeline-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.timeline-content h3 { margin: 0; font-size: 1.05rem; }
.timeline-content p { margin: 8px 0 0; color: var(--muted); }
.addon-list { margin: 10px 0 0; padding: 0; display: grid; gap: 8px; list-style: none; }
.addon-list li { padding: 9px 10px; border-radius: var(--radius-sm); background: #ffffff; border: 1px solid var(--line); }

.week-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(170px, 1fr));
  gap: 14px;
  align-items: start;
}
.day-card { padding: 16px; border-radius: var(--radius-lg); }
.day-card h2 { margin: 0 0 12px; font-size: 1.15rem; letter-spacing: -0.03em; }
.day-card ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.day-card li { padding: 10px; background: var(--surface-strong); border: 1px solid var(--line); border-radius: var(--radius-md); }
.day-card time { display: block; color: #2563eb; font-size: 0.8rem; font-weight: 900; font-variant-numeric: tabular-nums; }
.day-card strong { display: block; margin-top: 4px; line-height: 1.25; }
.day-card small { display: block; margin-top: 4px; color: var(--muted); }

.overflow-card { overflow: hidden; }
.table-wrap { overflow-x: auto; }
.tracking-table { width: 100%; border-collapse: collapse; min-width: 980px; }
.tracking-table th,
.tracking-table td { text-align: left; padding: 12px; border-top: 1px solid var(--line); vertical-align: top; }
.tracking-table th { color: var(--muted); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; background: var(--surface-strong); }
.tracking-table input,
.tracking-table select,
.tracking-table textarea { min-height: 40px; padding: 8px 10px; border-radius: var(--radius-sm); }
.tracking-table textarea { min-height: 42px; resize: vertical; }
.planned-cell strong { display: block; }
.planned-cell small { color: var(--muted); }
.deviation-input { max-width: 120px; }

.reflection-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.reflection-card label { display: grid; gap: 8px; color: var(--muted); font-size: 0.88rem; font-weight: 800; }
.reflection-card textarea { min-height: 110px; padding: 12px; resize: vertical; }
.slider-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 14px; }
.slider-grid input { width: 100%; }

.exercise-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.exercise-card { padding: 18px; border-radius: var(--radius-lg); }
.exercise-card header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.exercise-card h2 { margin: 0; font-size: 1.15rem; letter-spacing: -0.03em; }
.exercise-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.exercise-card ul,
.exercise-card ol { padding-left: 1.1rem; color: var(--muted); }
.exercise-card li + li { margin-top: 5px; }

.settings-grid { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 18px; align-items: start; }
.code-editor {
  min-height: 440px;
  padding: 14px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.86rem;
  line-height: 1.55;
}
.feedback { min-height: 22px; color: var(--muted); margin: 10px 0 0; }
.feedback.is-ok { color: var(--ok); }
.feedback.is-error { color: var(--danger); }
.agent-doc { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.agent-doc article { padding: 16px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface-strong); }
.agent-doc h3 { margin: 0 0 8px; }
.agent-doc code { display: inline-block; padding: 2px 6px; border-radius: 7px; background: #eef2ff; color: #1e3a8a; }
.agent-doc ul { margin: 8px 0 0; padding-left: 1.1rem; color: var(--muted); }

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 50;
  max-width: min(420px, calc(100vw - 40px));
  padding: 14px 16px;
  color: #ffffff;
  background: var(--primary);
  border-radius: 16px;
  box-shadow: var(--shadow);
  transform: translateY(20px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
}
.toast.is-visible { opacity: 1; transform: translateY(0); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1180px) {
  .week-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .exercise-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  .app-shell { width: min(100% - 20px, var(--container)); padding-top: 10px; }
  .app-header { align-items: stretch; flex-direction: column; border-radius: 24px; top: 8px; }
  .brand { min-width: 0; }
  .top-nav { justify-content: flex-start; width: 100%; }
  .hero-grid, .settings-grid, .reflection-grid, .slider-grid, .agent-doc { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .week-grid { grid-template-columns: 1fr; }
  .exercise-grid { grid-template-columns: 1fr; }
  .section-heading { flex-direction: column; align-items: stretch; }
  .inline-controls { align-items: stretch; }
  .inline-controls > * { flex: 1 1 auto; }
  .timeline-item { grid-template-columns: 66px minmax(0, 1fr); gap: 10px; }
  .timeline-content::before { left: -16px; }
}

@media (max-width: 520px) {
  .hero-card { border-radius: 22px; }
  .hero-card h1, .page-heading h1 { font-size: 2.25rem; }
  .metric-grid { grid-template-columns: 1fr; }
  .section-card { padding: 16px; border-radius: 22px; }
  .timeline-item { grid-template-columns: 1fr; }
  .time-token { justify-content: flex-start; padding-top: 0; }
  .timeline-content::before { display: none; }
}

@media print {
  body { background: #ffffff; }
  .app-header, .hero-actions, .button-row, .inline-controls, .toast, .date-picker, .search-input { display: none !important; }
  .view { display: block !important; }
  .hero-card, .section-card, .metric-card, .day-card, .exercise-card, .status-card { box-shadow: none; break-inside: avoid; }
}