:root {
  --bg: #f5f7f9;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #111827;
  --green: #d1fae5;
  --green-border: #86efac;
  --green-strong: #22c55e;
  --orange: #fed7aa;
  --orange-border: #fb923c;
  --red: #fee2e2;
  --red-border: #fca5a5;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container {
  width: min(1150px, calc(100% - 32px));
  margin: 40px auto;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 24px;
}

h1, h2, h3 { margin-top: 0; }

.subtitle {
  color: var(--muted);
  line-height: 1.5;
}

.small-muted {
  color: var(--muted);
  font-size: 13px;
}

.form, .participant-box {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.date-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
}

label span {
  font-size: 14px;
  color: var(--muted);
}

input, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  outline: none;
  font-size: 15px;
  background: #fff;
}

.btn, .link-button, .secondary-btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  border: none;
  background: var(--accent);
  color: white;
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 15px;
  text-decoration: none;
  white-space: nowrap;
}

.secondary-btn {
  background: #e5e7eb;
  color: #111827;
}

.btn.danger { background: #b91c1c; }

.result {
  margin-top: 20px;
  padding: 16px;
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: 14px;
}

.hidden { display: none; }

.survey-layout {
  display: grid;
  grid-template-columns: minmax(0, 720px) minmax(280px, 1fr);
  gap: 24px;
  align-items: start;
}

.survey-layout.single-column {
  grid-template-columns: minmax(0, 560px);
}

.client-centered {
  justify-content: center;
}

.client-main {
  margin: 0 auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.topbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.range-input-card {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--border);
  background: #f9fafb;
  border-radius: 14px;
}

.range-input-title {
  font-weight: 600;
  margin-bottom: 10px;
}

.range-input-row,
.range-search-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}

.range-search-card {
  margin-top: 16px;
}

.range-results {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.range-result-item {
  border: 1px solid var(--border);
  background: #fafafa;
  border-radius: 12px;
  padding: 12px;
}

.legend {
  display: flex;
  gap: 20px;
  margin: 20px 0 10px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.legend-color {
  width: 16px;
  height: 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.legend-color.available {
  background: var(--green);
  border-color: var(--green-border);
}

.legend-color.unavailable {
  background: var(--red);
  border-color: var(--red-border);
}

.calendar-wrapper {
  margin-top: 14px;
  user-select: none;
}

.client-calendar-wrapper {
  max-width: 390px;
}

.admin-calendar-wrapper {
  max-width: 430px;
  margin-top: 18px;
}

.calendar {
  display: grid;
  gap: 8px;
}

.month-title {
  font-size: 18px;
  font-weight: 700;
  margin: 8px 0 4px;
}

.weekday-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 6px;
}

.weekday-cell {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  font-weight: 600;
  padding: 4px 0;
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 14px;
}

.day {
  border: 1px solid var(--green-border);
  background: var(--green);
  border-radius: 12px;
  padding: 8px 4px;
  min-height: 46px;
  cursor: pointer;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  touch-action: none;
}

.client-calendar-wrapper .day {
  min-height: 42px;
  padding: 6px 4px;
}

.day.unavailable {
  background: var(--red);
  border-color: var(--red-border);
}

.day.avail-high {
  background: var(--green);
  border-color: var(--green-strong);
}

.day.avail-mid {
  background: var(--orange);
  border-color: var(--orange-border);
}

.day.avail-low {
  background: var(--red);
  border-color: var(--red-border);
}

.day .date {
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
}

.day .meta {
  font-size: 10px;
  color: var(--muted);
  line-height: 1.1;
  margin-top: 4px;
}

.day.outside {
  visibility: hidden;
  pointer-events: none;
  background: transparent;
  border-color: transparent;
}

.slot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
}

.summary {
  display: grid;
  gap: 14px;
  margin-bottom: 24px;
}

.summary-block {
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
}

.summary-block strong {
  display: block;
  margin-bottom: 8px;
}

.date-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  display: inline-block;
  padding: 8px 10px;
  background: #eef2f7;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
}

.participants-list,
.participant-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.participant-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: #fafafa;
}

.participant-item-title {
  font-weight: 600;
  margin-bottom: 8px;
}

.code-link {
  word-break: break-all;
  font-family: Consolas, monospace;
  background: #f3f4f6;
  padding: 10px 12px;
  border-radius: 10px;
  display: block;
  margin-top: 10px;
}

.admin-links {
  display: grid;
  gap: 14px;
}

.participants-toolbar {
  margin: 8px 0 12px;
}

.toolbar-label {
  margin-bottom: 8px;
}

.save-row {
  margin-top: 18px;
  display: flex;
  justify-content: flex-end;
}

@media (max-width: 900px) {
  .survey-layout { grid-template-columns: 1fr; }
  .calendar-wrapper,
  .client-calendar-wrapper,
  .admin-calendar-wrapper { max-width: 100%; }
}

@media (max-width: 640px) {
  .date-row,
  .range-input-row,
  .range-search-row {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
  }

  .month-grid,
  .weekday-row {
    gap: 5px;
  }

  .day {
    min-height: 42px;
    padding: 6px 3px;
  }

  .day .date {
    font-size: 14px;
  }

  .save-row {
    justify-content: stretch;
  }

  .save-row .btn {
    width: 100%;
  }
}

/* v6 refinements */
.range-input-hint { margin-top: 6px; line-height: 1.25; }
.client-page { width: min(980px, calc(100% - 32px)); }
.client-main { width: 100%; }
.client-desktop-grid { display: grid; grid-template-columns: minmax(300px, 390px) minmax(360px, 1fr); gap: 28px; align-items: start; }
.client-controls { min-width: 0; }
.client-calendar-area { display: flex; justify-content: flex-end; }
.client-calendar-wrapper { max-width: 420px; width: 100%; }
.edit-state-box { display: inline-flex; align-items: center; margin: 4px 0 18px; padding: 8px 12px; border-radius: 999px; font-size: 14px; font-weight: 600; border: 1px solid var(--border); }
.edit-state-box.new { background: #eef2f7; color: #374151; }
.edit-state-box.editing { background: #fef3c7; border-color: #f59e0b; color: #92400e; }
.admin-page { width: min(1180px, calc(100% - 32px)); }
.admin-grid { display: grid; grid-template-columns: minmax(360px, 1fr) minmax(360px, 440px); gap: 28px; align-items: start; }
.admin-calendar-wrapper { max-width: 420px; width: 100%; margin-top: 0; }
.compact-summary { margin-bottom: 0; }
.admin-day-tooltip { position: fixed; z-index: 9999; max-width: 300px; background: #111827; color: #fff; border-radius: 12px; padding: 10px 12px; font-size: 13px; line-height: 1.4; box-shadow: 0 12px 30px rgba(0,0,0,.18); pointer-events: none; display: none; }
.admin-day-tooltip strong { display: block; margin-bottom: 6px; }
.admin-day-tooltip .muted { color: #d1d5db; }
@media (max-width: 950px) {
  .client-page, .admin-page { width: min(720px, calc(100% - 32px)); }
  .client-desktop-grid, .admin-grid { grid-template-columns: 1fr; }
  .client-calendar-area { justify-content: flex-start; }
  .client-calendar-wrapper, .admin-calendar-wrapper { max-width: 100%; }
}


/* v7 tile layout */
.client-page {
  width: min(1180px, calc(100% - 32px));
}

.client-main {
  width: 100%;
}

.client-tile-grid {
  display: grid;
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.calendar-month-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.045);
}

.input-tile {
  position: sticky;
  top: 20px;
}

.month-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 1fr));
  gap: 18px;
  align-items: start;
}

.month-card {
  min-width: 0;
}

.client-calendar-wrapper {
  max-width: none;
  width: 100%;
  margin-top: 0;
}

.client-calendar-wrapper .day {
  min-height: 38px;
  padding: 5px 3px;
  border-radius: 10px;
}

.client-calendar-wrapper .day .date {
  font-size: 13px;
}

.client-calendar-wrapper .month-title,
.admin-calendar-wrapper .month-title {
  margin-top: 0;
}

.client-calendar-wrapper .month-grid,
.admin-calendar-wrapper .month-grid {
  margin-bottom: 0;
}

.admin-page {
  width: min(1180px, calc(100% - 32px));
}

.admin-tile-grid {
  display: grid;
  grid-template-columns: minmax(360px, 430px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.admin-summary-tile {
  position: sticky;
  top: 20px;
}

.admin-calendar-wrapper {
  max-width: none;
  width: 100%;
  margin-top: 0;
}

.admin-month-card-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(280px, 1fr));
  gap: 18px;
  align-items: start;
}

.admin-calendar-wrapper .day {
  min-height: 42px;
  padding: 5px 3px;
  border-radius: 10px;
}

.admin-calendar-wrapper .day .date {
  font-size: 13px;
}

.admin-calendar-wrapper .day .meta {
  font-size: 10px;
  margin-top: 3px;
}

.range-input-card {
  padding: 14px;
}

.range-input-row {
  grid-template-columns: 1fr;
}

.range-input-row .btn {
  width: 100%;
}

.save-row {
  justify-content: stretch;
}

.save-row .btn {
  width: 100%;
}

.admin-links {
  gap: 10px;
}

.range-search-card {
  margin-top: 10px;
}

.summary-block {
  padding: 12px;
}

@media (min-width: 1180px) {
  .month-card-grid {
    grid-template-columns: repeat(2, minmax(250px, 1fr));
  }

  .admin-month-card-grid {
    grid-template-columns: repeat(2, minmax(280px, 1fr));
  }
}

@media (min-width: 1500px) {
  .month-card-grid {
    grid-template-columns: repeat(3, minmax(245px, 1fr));
  }
}

@media (max-width: 980px) {
  .client-page,
  .admin-page {
    width: min(720px, calc(100% - 32px));
  }

  .client-tile-grid,
  .admin-tile-grid {
    grid-template-columns: 1fr;
  }

  .input-tile,
  .admin-summary-tile {
    position: static;
  }

  .month-card-grid,
  .admin-month-card-grid {
    grid-template-columns: 1fr;
  }
}


/* v8 participant desktop layout: Eingabe + Monatskacheln in einem 3er Raster */
@media (min-width: 981px) {
  .client-page {
    width: min(1120px, calc(100% - 32px));
  }

  .client-tile-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(260px, 1fr));
    gap: 18px;
    align-items: start;
  }

  .client-input-tile {
    grid-column: auto;
    min-height: 100%;
  }

  .client-calendar-wrapper {
    display: contents;
  }

  .client-calendar-wrapper > .calendar {
    display: contents;
  }

  .client-calendar-wrapper .calendar-month-card {
    width: 100%;
    min-width: 0;
  }

  .input-tile {
    position: static;
  }

  .month-card-grid {
    display: contents;
  }

  .client-calendar-wrapper .month-grid,
  .client-calendar-wrapper .weekday-row {
    gap: 6px;
  }

  .client-calendar-wrapper .day {
    min-height: 42px;
  }
}

/* Tablet: 2er Raster */
@media (min-width: 701px) and (max-width: 980px) {
  .client-page {
    width: min(760px, calc(100% - 32px));
  }

  .client-tile-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(260px, 1fr));
    gap: 18px;
    align-items: start;
  }

  .client-calendar-wrapper {
    display: contents;
  }

  .client-calendar-wrapper > .calendar {
    display: contents;
  }

  .month-card-grid {
    display: contents;
  }
}

/* Handy bleibt untereinander */
@media (max-width: 700px) {
  .client-tile-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .client-calendar-wrapper,
  .client-calendar-wrapper > .calendar,
  .month-card-grid {
    display: grid;
  }
}


/* v9 participant desktop layout: sticky input column + equal calendar cards */
@media (min-width: 981px) {
  .client-page {
    width: min(1240px, calc(100% - 32px));
  }

  .client-main {
    width: 100%;
  }

  .client-tile-grid {
    display: grid !important;
    grid-template-columns: 260px minmax(0, 1fr) !important;
    gap: 18px !important;
    align-items: start !important;
  }

  .client-input-tile {
    grid-column: 1 !important;
    width: 260px;
    min-height: 560px;
    position: sticky !important;
    top: 20px;
    align-self: start;
  }

  .client-calendar-wrapper {
    grid-column: 2 !important;
    display: block !important;
    width: 100%;
    max-width: none !important;
    margin-top: 0;
  }

  .client-calendar-wrapper > .calendar,
  .client-calendar-wrapper .month-card-grid {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(300px, 1fr)) !important;
    gap: 18px !important;
    align-items: stretch !important;
  }

  .client-calendar-wrapper .calendar-month-card {
    width: 100%;
    min-width: 0;
    min-height: 340px;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .client-calendar-wrapper .month-grid {
    flex: 1;
    align-content: start;
  }

  .client-calendar-wrapper .day {
    min-height: 42px;
    padding: 5px 3px;
    border-radius: 10px;
  }

  .client-calendar-wrapper .day .date {
    font-size: 13px;
  }

  .client-calendar-wrapper .weekday-row,
  .client-calendar-wrapper .month-grid {
    gap: 6px;
  }

  .client-calendar-wrapper .month-title {
    margin-top: 0;
  }
}

/* Tablet: Eingabe oben, Kalender in 2 Spalten */
@media (min-width: 701px) and (max-width: 980px) {
  .client-tile-grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 18px !important;
  }

  .client-calendar-wrapper {
    display: block !important;
    max-width: none !important;
  }

  .client-calendar-wrapper > .calendar,
  .client-calendar-wrapper .month-card-grid {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(260px, 1fr)) !important;
    gap: 18px !important;
  }

  .client-calendar-wrapper .calendar-month-card {
    min-height: 320px;
  }
}

/* Handy bleibt einspaltig */
@media (max-width: 700px) {
  .client-tile-grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
  }

  .client-calendar-wrapper {
    display: block !important;
    max-width: none !important;
  }

  .client-calendar-wrapper > .calendar,
  .client-calendar-wrapper .month-card-grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 18px !important;
  }

  .client-input-tile {
    position: static !important;
    width: auto;
    min-height: auto;
  }

  .client-calendar-wrapper .calendar-month-card {
    min-height: auto;
  }
}


/* v10 info tile above input (not sticky) */
.client-input-column {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.info-tile {
  position: static;
}

@media (min-width: 981px) {
  .client-input-column {
    width: 260px;
  }

  .client-input-tile {
    position: sticky !important;
    top: 140px; /* below info tile */
  }
}



/* v11 admin refinements */
.admin-topbar {
  align-items: flex-start;
}

.admin-header-links {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(220px, 1fr);
  gap: 12px;
  margin-top: 14px;
}

.compact-link {
  margin-top: 6px;
  padding: 8px 10px;
  font-size: 12px;
}

.small-danger {
  padding: 8px 11px;
  font-size: 13px;
  border-radius: 10px;
}

.admin-summary-tile {
  display: grid;
  gap: 0;
}

@media (max-width: 700px) {
  .admin-header-links {
    grid-template-columns: 1fr;
  }
}


/* v12 admin header link positioning + click popup */
.admin-header-grid {
  display: grid;
  grid-template-columns: minmax(220px, 260px) minmax(380px, 1fr) auto;
  gap: 24px;
  align-items: start;
}

.admin-title-block {
  min-width: 0;
}

.admin-header-grid .admin-header-links {
  margin-top: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-self: start;
}

.admin-header-grid .compact-link {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-header-grid .topbar-actions {
  justify-content: flex-end;
}

.day-modal.hidden {
  display: none;
}

.day-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
}

.day-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, 0.35);
}

.day-modal-card {
  position: relative;
  width: min(420px, calc(100% - 32px));
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px rgba(0,0,0,.22);
  padding: 22px;
}

.day-modal-card h2 {
  margin-bottom: 14px;
}

.day-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  border: none;
  background: #f3f4f6;
  border-radius: 999px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}

.day-modal-section {
  border: 1px solid var(--border);
  background: #f9fafb;
  border-radius: 12px;
  padding: 12px;
  margin-top: 10px;
  line-height: 1.45;
}

.admin-calendar-wrapper .day {
  cursor: pointer;
}

@media (max-width: 980px) {
  .admin-header-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .admin-header-grid .admin-header-links {
    grid-template-columns: 1fr;
  }

  .admin-header-grid .topbar-actions {
    justify-content: flex-start;
  }
}


/* v13 admin duplicate-link cleanup */
.admin-links {
  display: none !important;
}

.admin-header-grid {
  display: grid !important;
  grid-template-columns: minmax(220px, 260px) minmax(420px, 1fr) auto !important;
  gap: 24px !important;
  align-items: start !important;
}

.admin-header-grid > .admin-header-links {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 12px !important;
  margin-top: 0 !important;
}

.admin-header-grid .compact-link {
  min-height: 32px;
}

@media (max-width: 980px) {
  .admin-header-grid {
    grid-template-columns: 1fr !important;
  }

  .admin-header-grid > .admin-header-links {
    grid-template-columns: 1fr !important;
  }
}