:root {
  --kn-gold: #D8BF2D;
  --kn-gold-dark: #b8a326;
  --kn-black: #1a1a1a;
  --kn-gray: #6b6b6b;
  --kn-light: #f7f6f2;
  --kn-border: #e5e2d8;
  --font-head: "Oswald", "Arial Narrow", sans-serif;
  --font-serif: "EB Garamond", Georgia, serif;
}

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

body {
  font-family: var(--font-serif);
  color: var(--kn-black);
  background: #fff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--kn-border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 96px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 20px;
  text-decoration: none;
  color: inherit;
}

.brand-logo svg {
  display: block;
  width: 48px;
  height: 96px;
}

.brand-title {
  display: block;
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  line-height: 1.1;
}

.brand-sub {
  display: block;
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--kn-gray);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.account-info {
  font-size: 15px;
  color: var(--kn-gray);
}

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-head);
  font-size: 15px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  padding: 10px 18px;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn-gold {
  background: var(--kn-gold);
  color: #fff;
}
.btn-gold:hover { background: var(--kn-gold-dark); }

.btn-outline {
  background: transparent;
  color: var(--kn-black);
  border: 1px solid var(--kn-black);
}
.btn-outline:hover {
  background: var(--kn-black);
  color: #fff;
}

.btn-large {
  font-size: 18px;
  padding: 14px 28px;
}

/* ---------- Main ---------- */
.main {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.page-title {
  font-family: var(--font-head);
  font-size: 34px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.page-title::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  background: var(--kn-gold);
  margin-top: 8px;
}

.panel {
  background: var(--kn-light);
  border: 1px solid var(--kn-border);
  padding: 40px;
}

.notice h2 {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.notice code {
  font-family: Consolas, monospace;
  background: #fff;
  border: 1px solid var(--kn-border);
  padding: 1px 5px;
  font-size: 0.9em;
}

.login-panel {
  text-align: center;
  padding: 72px 40px;
}

.login-panel .page-title::after { margin-left: auto; margin-right: auto; }

.lede {
  font-size: 20px;
  margin: 20px 0 32px;
}

.hint {
  margin-top: 20px;
  color: var(--kn-gray);
  font-size: 15px;
}

/* ---------- Kalender ---------- */
.calendar-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.calendar-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.range-label {
  font-family: var(--font-head);
  font-size: 16px;
  letter-spacing: 0.5px;
  min-width: 190px;
  text-align: center;
}

.status {
  padding: 14px 18px;
  border: 1px solid var(--kn-border);
  background: var(--kn-light);
  margin-bottom: 20px;
  font-size: 16px;
}

.status.error {
  border-color: #c0392b;
  background: #fdf1ef;
  color: #8e2417;
}

/* ---------- Wochenraster ---------- */
.week-grid {
  border: 1px solid var(--kn-border);
  background: #fff;
  overflow-x: auto;
}

.week-grid-header,
.week-grid-allday,
.week-grid-body {
  display: grid;
  grid-template-columns: 60px repeat(var(--kn-col-count), minmax(110px, 1fr));
  min-width: 620px;
}

.week-grid-header {
  border-bottom: 2px solid var(--kn-gold);
}

.time-col-spacer { border-right: 1px solid var(--kn-border); }

.day-col-header {
  text-align: center;
  padding: 10px 4px;
  border-left: 1px solid var(--kn-border);
}

.day-col-header .day-col-name {
  display: block;
  font-family: var(--font-head);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--kn-gray);
}

.day-col-header .day-col-date {
  display: block;
  font-family: var(--font-head);
  font-size: 17px;
  margin-top: 2px;
}

.day-col-header.today { background: var(--kn-light); }
.day-col-header.today .day-col-name { color: var(--kn-gold-dark); }

.week-grid-allday {
  border-bottom: 1px solid var(--kn-border);
}

.allday-label {
  font-size: 12px;
  color: var(--kn-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4px;
}

.allday-col {
  border-left: 1px solid var(--kn-border);
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.allday-chip {
  background: var(--kn-gold);
  color: #fff;
  font-size: 13px;
  padding: 3px 6px;
  border-radius: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.week-grid-body { position: relative; }

.time-col { position: relative; border-right: 1px solid var(--kn-border); }

.time-slot-label {
  position: absolute;
  left: 0;
  right: 4px;
  transform: translateY(-50%);
  font-size: 12px;
  color: var(--kn-gray);
  text-align: right;
}

.day-col.hour-col {
  position: relative;
  border-left: 1px solid var(--kn-border);
}

.day-col.hour-col.today { background: rgba(216, 191, 45, 0.06); }

.hour-line {
  position: absolute;
  left: 0;
  right: 0;
  border-top: 1px solid var(--kn-border);
}

.current-time-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 0;
  border-top: 2px solid #c0392b;
  z-index: 2;
}
.current-time-line::before {
  content: "";
  position: absolute;
  left: -4px;
  top: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #c0392b;
}

.grid-event {
  position: absolute;
  overflow: hidden;
  background: var(--kn-gold);
  color: #fff;
  border-radius: 3px;
  padding: 3px 6px;
  font-size: 13px;
  line-height: 1.25;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
  cursor: default;
  z-index: 1;
}

.grid-event-subject {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.grid-event-time {
  font-size: 12px;
  opacity: 0.9;
}

.empty-hint {
  text-align: center;
  color: var(--kn-gray);
  padding: 14px 0 0;
  font-size: 15px;
  font-style: italic;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--kn-border);
  padding: 18px 24px;
  text-align: center;
  font-size: 14px;
  color: var(--kn-gray);
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .header-inner { flex-direction: column; align-items: flex-start; padding: 12px 16px; }
  .brand-logo svg { width: 36px; height: 72px; }
  .brand-title { font-size: 22px; }
  .week-grid-header,
  .week-grid-allday,
  .week-grid-body { grid-template-columns: 44px repeat(var(--kn-col-count), minmax(88px, 1fr)); }
}