/* ══════════════════════════════════════════════════════════════
   Förderverein KGS Lindenburger Allee – Stylesheet
   Farben und Typografie angelehnt an kgs-lindenburger-allee.de
   ══════════════════════════════════════════════════════════════ */

:root {
  --blau:        #1a4a6b;
  --blau-hell:   #2a6496;
  --blau-bg:     #f0f6fb;
  --gruen:       #0d522a;
  --gruen-hell:  #27ae60;
  --gruen-bg:    #e6f4ea;
  --akzent:      #e8a020;
  --text:        #333333;
  --grau:        #666666;
  --grau-hell:   #f5f5f5;
  --rand:        #dde4ea;
  --weiss:       #ffffff;
  --fehler:      #c0392b;
  --fehler-bg:   #fdf0ee;
  --erfolg:      #27ae60;
  --radius:      4px;
  --schatten:    0 2px 12px rgba(0,0,0,0.08);
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Georgia', 'Times New Roman', serif;
  color: var(--text);
  background: #eef2f6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ──────────────────────────────────────────────────── */
.site-header {
  background: var(--weiss);
  border-bottom: 3px solid var(--gruen);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.header-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo {
  height: 64px;
  width: auto;
  flex-shrink: 0;
}

.header-text h1 {
  font-size: 1.4rem;
  color: var(--gruen);
  font-weight: normal;
  letter-spacing: 0.3px;
}

.header-text p {
  font-size: 0.85rem;
  color: var(--grau);
  font-family: Arial, Helvetica, sans-serif;
  margin-top: 2px;
}

/* ── Main ────────────────────────────────────────────────────── */
.main-content {
  flex: 1;
  padding: 32px 16px;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
}

/* ── Formular-Card ───────────────────────────────────────────── */
.form-card {
  background: var(--weiss);
  border-radius: var(--radius);
  box-shadow: var(--schatten);
  padding: 40px 48px;
  border-top: 4px solid var(--gruen);
}

.form-title {
  font-size: 1.6rem;
  color: var(--gruen);
  font-weight: normal;
  margin-bottom: 10px;
}

.form-intro {
  font-size: 0.95rem;
  color: var(--grau);
  line-height: 1.7;
  margin-bottom: 28px;
  font-family: Arial, Helvetica, sans-serif;
}

/* ── Fehlermeldungen ─────────────────────────────────────────── */
.fehler-box {
  background: var(--fehler-bg);
  border-left: 4px solid var(--fehler);
  padding: 14px 18px;
  margin-bottom: 24px;
  border-radius: var(--radius);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
}

.fehler-box strong { color: var(--fehler); display: block; margin-bottom: 6px; }
.fehler-box ul { margin-left: 18px; }
.fehler-box li { margin-top: 4px; color: var(--fehler); }

/* ── Fieldsets ───────────────────────────────────────────────── */
fieldset {
  border: 1px solid var(--rand);
  border-radius: var(--radius);
  padding: 20px 24px 16px;
  margin-bottom: 24px;
}

legend {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--gruen);
  padding: 0 8px;
  background: var(--weiss);
}

/* ── Felder ──────────────────────────────────────────────────── */
.feld {
  margin-bottom: 16px;
}

.feld-gruppe {
  display: grid;
  gap: 16px;
}

.zwei-spalten { grid-template-columns: 1fr 1fr; }

.feld-schmal { max-width: 120px; }

label {
  display: block;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.85rem;
  color: var(--grau);
  margin-bottom: 5px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--rand);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--weiss);
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--gruen-hell);
  box-shadow: 0 0 0 3px rgba(39,174,96,0.12);
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2327ae60' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.hinweis {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  color: var(--grau);
  display: block;
  margin-top: 4px;
}

.pflicht { color: var(--fehler); }
.optional { color: var(--grau); font-weight: normal; font-style: italic; }

/* ── SEPA-Mandat-Box ─────────────────────────────────────────── */
.mandat-box {
  background: var(--gruen-bg);
  border: 1px solid #c5d8e8;
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-top: 16px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.85rem;
  line-height: 1.6;
  color: #444;
}

/* ── Checkboxen ──────────────────────────────────────────────── */
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.88rem;
  line-height: 1.5;
  margin-top: 12px;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--gruen);
  cursor: pointer;
}

.checkbox-label a { color: var(--gruen); }
.checkbox-label a:hover { text-decoration: underline; }

.zustimmungen { border-style: dashed; }

/* ── Beitrag Optionen (Radio-Buttons) ────────────────────────── */
.beitrag-optionen {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.beitrag-radio {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border: 2px solid var(--rand);
  border-radius: var(--radius);
  background: var(--weiss);
  cursor: pointer;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  transition: all 0.15s;
}

.beitrag-radio:hover {
  border-color: var(--gruen-hell);
  background: var(--gruen-bg);
}

.beitrag-radio input[type="radio"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--gruen);
}

.beitrag-radio input[type="radio"]:checked + .radio-label {
  font-weight: bold;
  color: var(--gruen);
}

.beitrag-radio input[type="radio"]:checked {
  accent-color: var(--gruen);
}

.beitrag-radio:has(input[type="radio"]:checked) {
  border-color: var(--gruen);
  background: var(--gruen-bg);
}

.radio-label {
  font-weight: normal;
  color: var(--text);
}

/* ── Honeypot – für Bots unsichtbar ──────────────────────────── */
.hp-feld {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  tab-index: -1;
}

/* ── Proof-of-Work Status ────────────────────────────────────── */
.pow-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.85rem;
  color: var(--grau);
  padding: 10px 0 6px;
}

.pow-status.fertig { color: var(--erfolg); }

.pow-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--rand);
  border-top-color: var(--gruen);
  border-radius: 50%;
  animation: drehen 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes drehen {
  to { transform: rotate(360deg); }
}

/* ── Submit-Button ───────────────────────────────────────────── */
.submit-btn {
  display: block;
  width: 100%;
  padding: 14px;
  background: var(--gruen);
  color: var(--weiss);
  border: none;
  border-radius: var(--radius);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  margin-top: 8px;
}

.submit-btn:hover:not(:disabled) { background: var(--gruen-hell); }
.submit-btn:active:not(:disabled) { transform: translateY(1px); }

.submit-btn:disabled {
  background: var(--rand);
  color: var(--grau);
  cursor: not-allowed;
}

.pflicht-hinweis {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.8rem;
  color: var(--grau);
  margin-top: 12px;
  text-align: right;
}

/* ── Erfolgsseite ────────────────────────────────────────────── */
.success-card { text-align: center; }

.success-icon {
  width: 64px;
  height: 64px;
  background: var(--erfolg);
  color: var(--weiss);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 20px;
}

.success-card h2 {
  font-size: 1.6rem;
  color: var(--gruen);
  font-weight: normal;
  margin-bottom: 16px;
}

.success-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 24px;
}

.success-details {
  background: var(--gruen-bg);
  border: 1px solid #c5d8e8;
  border-radius: var(--radius);
  padding: 16px 24px;
  margin: 0 auto 20px;
  max-width: 420px;
  text-align: left;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  line-height: 1.8;
}

.success-hinweis {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.88rem;
  color: var(--grau);
  margin-bottom: 28px;
}

.zurueck-btn {
  display: inline-block;
  padding: 11px 28px;
  background: var(--gruen);
  color: var(--weiss);
  text-decoration: none;
  border-radius: var(--radius);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.92rem;
  transition: background 0.15s;
}

.zurueck-btn:hover { background: var(--gruen-hell); }

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--gruen);
  color: rgba(255,255,255,0.7);
  margin-top: auto;
}

.footer-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px 24px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  text-align: center;
}

.site-footer a { color: rgba(255,255,255,0.85); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 620px) {
  .form-card { padding: 24px 20px; }
  .zwei-spalten { grid-template-columns: 1fr; }
  .feld-schmal { max-width: 100%; }
  .header-inner { gap: 12px; }
  .logo { height: 48px; }
}

/* ── Statische Seiten (Impressum, Datenschutz) ───────────────── */
.static-page h3 {
  font-size: 1rem;
  color: var(--gruen);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: bold;
  margin-bottom: 8px;
}

.abschnitt {
  margin-bottom: 2em;
}

.abschnitt:last-of-type {
  border-bottom: none;
}

.abschnitt p {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 10px;
}

.abschnitt ul {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text);
  margin: 8px 0 10px 20px;
}

.abschnitt li {
  margin-bottom: 4px;
}

.abschnitt a {
  color: var(--gruen);
}

.zurueck-link {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--rand);
}

.zurueck-link a {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.88rem;
  color: var(--gruen);
  text-decoration: none;
}

.zurueck-link a:hover {
  text-decoration: underline;
}