:root {
  color-scheme: light;

  --color-primary: #243b6b;
  --color-primary-dark: #1a2c50;
  --color-gold: #f4b942;
  --color-teal: #168f83;
  --color-teal-light: #e5f5f2;

  --color-bg: #f7f8fb;
  --color-surface: #ffffff;
  --color-surface-soft: #eef2f9;
  --color-text: #202938;
  --color-muted: #5d6879;
  --color-border: #dce2eb;
  --color-danger: #a83232;

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --radius-pill: 999px;

  --shadow-card: 0 8px 28px rgb(29 47 79 / 7%);
  --content-width: 1160px;
  --header-height: 4.5rem;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
}

a {
  color: var(--color-primary);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-primary-dark);
}

button,
input,
select {
  font: inherit;
}

button,
input,
select,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--color-teal);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  z-index: 10;
  top: var(--space-2);
  left: var(--space-2);
  padding: var(--space-3) var(--space-4);
  transform: translateY(-160%);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  z-index: 5;
  top: 0;
  min-height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  background: rgb(255 255 255 / 96%);
  backdrop-filter: blur(12px);
}

.header-inner,
.page-shell,
.footer-inner {
  width: min(calc(100% - 2rem), var(--content-width));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-primary);
  font-size: 1.25rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.04em;
}

.brand-mark {
  display: grid;
  width: 2.25rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 0.65rem;
  background: var(--color-primary);
  color: var(--color-gold);
  font-size: 1.25rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
}

.site-nav a {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  font-size: 0.925rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--color-surface-soft);
  color: var(--color-primary);
}

.page-shell {
  min-height: calc(100vh - var(--header-height) - 5rem);
  padding-block: var(--space-10) var(--space-12);
}

.page-heading {
  margin-bottom: var(--space-8);
}

.eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-teal);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--color-primary-dark);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

h1 {
  margin: 0 0 var(--space-3);
  font-size: clamp(2rem, 4vw, 3rem);
}

h2 {
  margin: 0 0 var(--space-4);
  font-size: 1.35rem;
}

h3 {
  margin: 0 0 var(--space-2);
  font-size: 1.05rem;
}

p {
  margin: 0 0 var(--space-4);
}

.lead {
  max-width: 62ch;
  color: var(--color-muted);
  font-size: 1.1rem;
}

.muted,
.help-text {
  color: var(--color-muted);
}

.card {
  min-width: 0;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.card + .card {
  margin-top: var(--space-5);
}

.grid {
  display: grid;
  gap: var(--space-5);
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stack {
  display: grid;
  gap: var(--space-4);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-5);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  font-weight: 750;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.button:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

.button-secondary {
  border-color: var(--color-border);
  background: var(--color-surface);
  color: var(--color-primary);
}

.button-secondary:hover {
  background: var(--color-surface-soft);
  color: var(--color-primary-dark);
}

.button-teal {
  background: var(--color-teal);
}

.button-teal:hover {
  background: #11776e;
}

.form-field {
  display: grid;
  gap: var(--space-2);
}

.form-field label,
.fieldset-legend {
  color: var(--color-text);
  font-size: 0.925rem;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 2.85rem;
  padding: var(--space-3) var(--space-4);
  border: 1px solid #aeb9c9;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
}

input::placeholder {
  color: #687487;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

legend {
  padding-inline: var(--space-2);
  font-weight: 750;
}

.metric-value {
  display: block;
  margin-top: var(--space-2);
  color: var(--color-primary);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.05em;
}

.metric-label {
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 650;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--color-teal-light);
  color: #12675e;
  font-size: 0.8rem;
  font-weight: 750;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  text-align: left;
}

caption {
  padding: var(--space-4);
  color: var(--color-muted);
  font-size: 0.9rem;
  text-align: left;
}

th,
td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

th {
  background: var(--color-surface-soft);
  color: var(--color-primary-dark);
  font-size: 0.875rem;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.chart {
  display: flex;
  height: 12rem;
  align-items: end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
}

.chart-column {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  justify-content: end;
  gap: var(--space-2);
  text-align: center;
}

.chart-bar {
  min-height: 0.5rem;
  border-radius: 0.5rem 0.5rem 0 0;
  background: var(--color-teal);
}

.chart-label {
  color: var(--color-muted);
  font-size: 0.75rem;
}

.notice {
  padding: var(--space-4);
  border-left: 4px solid var(--color-gold);
  border-radius: var(--radius-sm);
  background: #fff8e8;
}

.auth-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  align-items: center;
  gap: var(--space-10);
}

.hero-panel {
  padding-block: var(--space-8);
}

.hero-panel h1 {
  max-width: 12ch;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

.auth-card {
  width: 100%;
  max-width: 28rem;
  justify-self: end;
}

.auth-switch {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.auth-switch a {
  font-weight: 750;
}

.faq-list {
  display: grid;
  gap: var(--space-3);
}

details {
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

summary {
  color: var(--color-primary-dark);
  font-weight: 750;
  cursor: pointer;
}

details p {
  margin: var(--space-3) 0 0;
  color: var(--color-muted);
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.footer-inner {
  display: flex;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-muted);
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-links a {
  color: var(--color-primary);
  font-weight: 650;
}

.not-found {
  max-width: 42rem;
  margin-inline: auto;
  padding-block: var(--space-12);
  text-align: center;
}

.not-found-code {
  margin: 0;
  color: var(--color-gold);
  font-size: clamp(5rem, 16vw, 9rem);
  font-weight: 900;
  line-height: 1;
}

@media (max-width: 800px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: var(--space-3);
  }

  .site-nav {
    justify-content: flex-start;
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .auth-layout {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .auth-card {
    max-width: none;
    justify-self: stretch;
  }
}

@media (max-width: 560px) {
  .header-inner,
  .page-shell,
  .footer-inner {
    width: min(calc(100% - 1.25rem), var(--content-width));
  }

  .site-nav {
    width: 100%;
    gap: var(--space-1);
  }

  .site-nav a {
    padding: var(--space-2);
    font-size: 0.82rem;
  }

  .page-shell {
    padding-block: var(--space-6) var(--space-8);
  }

  .card {
    padding: var(--space-4);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-block: var(--space-4);
  }

  .button-row > * {
    width: 100%;
  }

  th,
  td {
    padding: var(--space-3);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* Optionaler Dark Mode, manuell über <html data-theme="dark"> aktivierbar. */
html[data-theme="dark"] {
  color-scheme: dark;

  --color-primary: #a9bff0;
  --color-primary-dark: #d6e2ff;
  --color-teal: #55c8b8;
  --color-teal-light: #183d3a;
  --color-bg: #101827;
  --color-surface: #19263a;
  --color-surface-soft: #22334d;
  --color-text: #f5f7fa;
  --color-muted: #b9c4d4;
  --color-border: #30415b;
  --color-danger: #ff9b9b;
  --shadow-card: 0 8px 28px rgb(0 0 0 / 18%);
}

html[data-theme="dark"] .site-header {
  background: rgb(25 38 58 / 96%);
}

html[data-theme="dark"] .brand-mark {
  background: #22334d;
}

html[data-theme="dark"] .status {
  color: #a9e7dc;
}

html[data-theme="dark"] .notice {
  border-left-color: var(--color-gold);
  background: #3b3320;
}

html[data-theme="dark"] input,
html[data-theme="dark"] select {
  border-color: #596981;
}

html[data-theme="dark"] input::placeholder {
  color: #b9c4d4;
}

html[data-theme="dark"] .button-secondary {
  border-color: var(--color-border);
  color: var(--color-primary-dark);
}

html[data-theme="dark"] .chart-bar {
  background: var(--color-teal);
}




/* AbiKing: Statusmeldungen */
.information-popup {
    position: fixed;
    z-index: 200;
    top: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    width: max-content;
    max-width: min(90vw, 30rem);
    box-sizing: border-box;

    display: flex;
    align-items: flex-start;
    gap: 0.85rem;

    padding: 1rem 2.8rem 1rem 1rem;
    border: 1px solid var(--color-border);
    border-left: 4px solid;
    border-radius: var(--radius-lg);

    background: var(--color-surface);
    color: var(--color-primary-dark);
    font-size: 0.95rem;
    font-weight: 550;
    line-height: 1.5;

    box-shadow: var(--shadow-card);
    cursor: pointer;

    animation: popup-appear 0.25s ease-out;
}

.information-popup--error {
    border-left-color: #dc3545;
    background: #fff5f5;
    color: #842029;
}

.information-popup--success {
    border-left-color: #198754;
    background: #f0faf4;
    color: #146c43;
}

.information-popup__icon {
    flex: 0 0 1.6rem;
    width: 1.6rem;
    height: 1.6rem;

    display: grid;
    place-items: center;

    border-radius: 50%;
    font-size: 0.95rem;
    font-weight: 800;
}

.information-popup--error .information-popup__icon {
    background: #f8d7da;
    color: #b02a37;
}

.information-popup--success .information-popup__icon {
    background: #d1e7dd;
    color: #146c43;
}

.information-popup__text {
    flex: 1;
    overflow-wrap: anywhere;
}

.information-popup__close {
    position: absolute;
    top: 0.45rem;
    right: 0.7rem;

    color: inherit;
    font-size: 1.35rem;
    line-height: 1;
    opacity: 0.65;
}

.information-popup:hover .information-popup__close {
    opacity: 1;
}

#information-popup-checkbox {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

#information-popup-checkbox:checked + .information-popup {
    display: none;
}

@keyframes popup-appear {
    from {
        opacity: 0;
        transform: translate(-50%, -8px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}


/* Lesbare Statusmeldungen */
.information-popup {
    color: #263244 !important;
    font-weight: 400 !important;
    padding-right: 3.5rem;
    box-sizing: border-box;
}

.information-popup--error {
    background: #fff5f5 !important;
    color: #842029 !important;
}

.information-popup--success {
    background: #f0faf4 !important;
    color: #146c43 !important;
}

.information-popup__text {
    color: inherit !important;
    font-weight: 400 !important;
    min-width: 0;
    overflow-wrap: anywhere;
    padding-right: 0.25rem;
}

.information-popup__close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    line-height: 1;
    font-weight: 400;
    color: inherit !important;
    opacity: 0.7;
}

.information-popup:hover .information-popup__close {
    opacity: 1;
}


@media (max-width: 480px) {
    .information-popup {
        top: 0.75rem;
        max-width: calc(100vw - 1.5rem);
        padding: 0.85rem 2.5rem 0.85rem 0.8rem;
        gap: 0.6rem;
        font-size: 0.9rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .information-popup {
        animation: none;
    }
}