:root {
  --bg: #f3f4f6;
  --card: #ffffff;
  --text: #000000;
  --muted: #374151;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --soft-accent: #dfe8ff;
  --soft-gray: #f5f5f5;
  --brand: #24415a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.wrap {
  max-width: 1000px;
  margin: 0 auto;
}

[id] {
  scroll-margin-top: 85px;
}

/* Header */

.topbar {
  box-shadow: 0 2px 6px rgba(156, 156, 156, 0.39);
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: #fff;
}

.topbar-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.topbar a {
  color: var(--brand);
  text-decoration: none;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  font-weight: bold;
}

.topbar-right a {
  font-weight: initial;
  font-size: initial;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: black;
}

.brand img {
  display: block;
}

/* Layout */

.hero {
  text-align: center;
  padding: 56px 24px 20px;
}

.hero-title {
  margin: 0 0 0.4rem;
  text-align: left;
  font-size: 2.2rem;
  font-weight: 700;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-top: 24px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}

h2 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.45rem;
}

p {
  margin: 0 0 14px;
}

.lead {
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  margin: 0 auto 10px;
  max-width: 850px;
}

.lead strong {
  font-weight: 700;
}

.muted {
  color: var(--muted);
}

.footer-note {
  margin-top: 22px;
  font-size: 0.98rem;
  color: var(--muted);
}

/* Buttons */

.button-row {
  margin: 28px 0 14px;
  text-align: center;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 22px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease;
}

.button:hover {
  background: var(--accent-hover);
}

.button-secondary {
  background: #111827;
}

.button-secondary:hover {
  background: #000000;
}

/* Images / Code */

.responsive-img {
  width: 100%;
  max-width: 400px;
  height: auto;
  display: block;
  margin: 0 auto 25px;
}

.code-line {
  font-family: Consolas, Monaco, monospace;
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin: 10px 0;
  overflow-x: auto;
}

.example {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

/* KW Detail Hero */

.kw {
  font-size: clamp(5rem, 16vw, 10rem);
  font-weight: 400;
  line-height: 1;
  margin: 12px 0 20px;
  letter-spacing: 2px;
}

.hero-date {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 700;
  margin: 16px 0 0;
}

.hero-range {
  display: flex;
  align-items: baseline;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 40px;
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: #111827;
  margin: 0.5rem 0 2rem;
  gap: 0.2em;
}

.hero-range span {
  white-space: nowrap;
}

.hero-range-sep {
  font-size: 0.35em;
  font-weight: 600;
  color: #64748b;
  margin: 0 0.25em;
}

/* Picker */

.picker-group {
  display: grid;
  gap: 14px;
  margin: 18px 0 22px;
}

.picker-row {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.picker-row label {
  font-weight: 700;
}

.picker-row input[type="date"],
.picker-row select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  background: #fff;
  color: var(--text);
  min-width: 110px;
}

/* Month Calendar */

.kw-month-box {
  display: flex;
  justify-content: center;
  margin: 30px 0;
}

.kw-month-box table {
  border-collapse: collapse;
  width: 100%;
  max-width: 520px;
  background: #fff;
}

.kw-month-box th,
.kw-month-box td {
  border: 1px solid #777;
  text-align: center;
  padding: 6px 8px;
  min-width: 42px;
  font-family: Arial, Helvetica, sans-serif;
}

.kw-month-box .head th {
  background: #f3f4f6;
  font-weight: 700;
}

.kw-month-box .month-title {
  font-size: 1.2rem;
  font-weight: 700;
  background: #fff;
}

.kw-cell {
  width: 56px;
  font-weight: 700;
  background: #fafafa;
}

.other-month {
  background: var(--soft-gray);
  color: #bbb;
}

.current-week-row {
  outline: 2px solid var(--brand);
  outline-offset: -2px;
}

.current-week-row td {
  background: var(--soft-accent);
}

.selected-date-cell {
  outline: 2px solid #111827;
  outline-offset: -2px;
  font-weight: 700;
  position: relative;
  z-index: 1;
}

.today-cell {
  background: #2563eb !important;
  color: #fff !important;
  font-weight: 700;
}

.today-cell a {
  color: #fff;
}

.kw-month-box td a {
  color: inherit;
  text-decoration: none;
}

.kw-month-box td a:hover {
  text-decoration: underline;
}

/* KW nav */

.kw-nav {
  position: relative;
}

.kw-nav span {
  display: inline-block;
}

.kw-nav-prev,
.kw-nav-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  text-decoration: none;
  font-weight: 700;
  color: inherit;
  padding: 0 0.6rem;
  white-space: nowrap;
}

.kw-nav-prev {
  left: 0.4rem;
}

.kw-nav-next {
  right: 0.4rem;
}

/* Tables */

.table-responsive {
  overflow-x: auto;
}

.kw-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

.kw-table th,
.kw-table td {
  padding: 10px;
  border: 1px solid #ddd;
  vertical-align: top;
  text-align: left;
}

.kw-table tr {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  background: #fff;
}

:target td {
  animation: highlightTarget 0.6s ease forwards;
}

@keyframes highlightTarget {
  0% {
    background: transparent;
  }

  100% {
    background: color-mix(in srgb, #2563eb 10%, white);
  }
}

/* KW cards: aktuelle + nächste Wochen */

.kw-next-list {
  list-style: none;
  padding: 0;
  margin: 1rem auto 0;
  max-width: 560px;
}

.kw-next-list li {
  margin: 0.65rem 0;
}

.kw-next-list a {
  display: block;
  padding: 0.9rem 1rem;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  text-decoration: none;
  color: #111827;
  background: #fff;
  text-align: center;
}

.kw-next-list a:hover {
  border-color: var(--brand);
  background: #f8fafc;
}

.kw-line {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.kw-next-list strong {
  color: var(--brand);
}

.kw-next-type {
  font-weight: 600;
  color: #64748b;
}

.kw-status {
  display: none;
  margin-top: 0.55rem;
  font-weight: 700;
}

.kw-status.ok {
  display: block;
  color: #166534;
}

.kw-status.not-ok {
  display: block;
  color: #991b1b;
}

.kw-next-list li.is-ok a {
  border: 2px solid #16a34a;
  background: #dcfce7;
}

.kw-next-list li.is-not-ok a {
  border: 2px solid #dc2626;
  background: #fee2e2;
}

/* Termin-Tool */

.kw-tool {
  margin-top: 1.4rem;
  display: grid;
  gap: 1.2rem;
}

.kw-tool-group {
  border: 0;
  padding: 0;
  margin: 0;
}

.kw-tool-group legend {
  font-weight: 800;
  color: var(--brand);
  margin-bottom: 0.55rem;
}

.chip-grid {
  display: grid;
  gap: 0.65rem;
}

.chip-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.chip-grid.days {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.chip {
  cursor: pointer;
}

.chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.chip span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 0.85rem;
  border: 1px solid #dbe1e7;
  border-radius: 14px;
  background: #fff;
  font-weight: 700;
  color: #111827;
  transition: 0.15s ease;
}

.chip input:checked + span {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
  box-shadow: 0 6px 16px rgba(36, 65, 90, 0.18);
}

.chip:hover span {
  border-color: var(--brand);
}

.kw-tool-fields {
  display: grid;
  gap: 1rem;
}

.field-box {
  max-width: 260px;
}

.field-box label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 800;
  color: var(--brand);
}

.field-box input {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid #d1d5db;
  border-radius: 12px;
  font: inherit;
}

.date-range {
  max-width: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 220px));
  gap: 1rem;
}

#termine-berechnen .button {
  justify-self: start;
  margin-top: 0.2rem;
  font-size: 1.05rem;
  padding: 0.9rem 1.4rem;
  border-radius: 14px;
}

/* Tool result */

.kw-result {
  margin-top: 1.6rem;
}

.kw-result .kw-next-list {
  margin: 0;
  margin-left: 2rem;
  list-style: initial;
  max-width: none;
}

.kw-result .kw-next-list li {
  padding: 0.45rem 0;
  font-weight: 700;
  color: var(--brand);
}

.kw-result .kw-next-list a {
  display: inline;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
}

/* ICS Export */

.kw-export-box {
  margin-top: 1.4rem;
  padding: 1.1rem;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  background: #f8fafc;
  display: grid;
  gap: 0.9rem;
  max-width: 520px;
}

.kw-export-box label {
  font-weight: 700;
  color: var(--brand);
}

.kw-export-box input[type="text"],
.kw-export-box input[type="time"] {
  padding: 0.65rem 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font: inherit;
  background: #fff;
}

.kw-export-box input[type="text"] {
  width: 100%;
}

.kw-export-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.kw-export-options label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid #dbe1e7;
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
}

.kw-export-options input {
  accent-color: var(--brand);
}

.kw-export-time {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.kw-export-box .button {
  justify-self: start;
  margin-top: 0.2rem;
}

/* Responsive */

@media (min-width: 601px) {
  .kw-table th,
  .kw-table td {
    padding: 12px 14px;
  }
}

@media (max-width: 700px) {
  .chip-grid.two,
  .chip-grid.days,
  .date-range {
    grid-template-columns: 1fr;
  }

  #termine-berechnen .button {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .hero-range {
    font-size: clamp(2rem, 12vw, 4rem);
    letter-spacing: -0.03em;
    line-height: 1.1;
  }

  .hero-range-sep {
    display: block;
    width: 100%;
    text-align: center;
    margin: 0.2em 0;
    font-size: 0.45em;
  }

  .picker-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .picker-row:first-child .date-inline {
    display: flex;
    gap: 10px;
    width: 100%;
  }

  .picker-row .kw-select-group {
    display: flex;
    gap: 10px;
    width: 100%;
  }

  .picker-row .kw-select-group select {
    flex: 1;
  }

  .kw-nav-prev,
  .kw-nav-next {
    padding: 0 0.4rem;
    font-size: 0.9em;
  }

  .kw-nav span {
    margin: 0 0.5rem;
  }

  .table-responsive {
    overflow-x: visible;
  }

  .kw-table {
    min-width: 0;
    width: 100%;
  }

  .kw-table thead {
    display: none;
  }

  .kw-table,
  .kw-table tbody,
  .kw-table tr,
  .kw-table td {
    display: block;
    width: 100%;
  }

  .kw-table tr {
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
  }

  .kw-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #eee;
    overflow-wrap: break-word;
    word-break: break-word;
  }

  .kw-table td:last-child {
    border-bottom: none;
  }

  .kw-table td::before {
    content: attr(data-label);
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
    color: #666;
    font-size: 13px;
  }

  .kw-next-list a {
    text-align: center;
  }

  .kw-export-box {
    max-width: none;
  }

  .kw-export-time {
    display: grid;
    grid-template-columns: 1fr;
  }

  .kw-export-box .button {
    width: 100%;
  }
}