/* LadeDave — Corporate Design v1.0
   Ink / Volt / Netzgrün / Papier · Space Grotesk + IBM Plex Sans + IBM Plex Mono */

/* Lokal eingebundene Schriften (SIL OFL), kein Google-Fonts-Request zur Laufzeit. */
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/space-grotesk-variable.woff2") format("woff2-variations"),
       url("fonts/space-grotesk-variable.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-variable.woff2") format("woff2-variations"),
       url("fonts/ibm-plex-sans-variable.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-400.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-500.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-600.woff2") format("woff2");
}

:root {
  --ink: #0B1210;
  --ink-soft: #12312A;
  --volt: #C8F751;
  --volt-dark: #B6E63C;
  --volt-tint: #FBFFEE;
  --netz: #0F6B5C;
  --netz-tint: #E8F6F2;
  --aqua: #7FE3D2;
  --papier: #F5F4EF;
  --card: #FFFFFF;
  --field: #FBFBF8;
  --grau: #6E756F;
  --grau-hell: #B9C2BC;
  --kante: #E4E3DC;
  --hinweis: #E07A1F;
  --hinweis-bg: #FDF1E3;
  --hinweis-text: #A85809;
  --danger: #B4271F;
  --danger-bg: #FCF3F2;

  /* Aliase für Bestandsklassen */
  --text: var(--ink);
  --text-muted: var(--grau);
  --border: var(--kante);
  --accent: var(--netz);
  --accent-dark: var(--ink);

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-text: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --r-field: 10px;
  --r-btn: 12px;
  --r-card: 18px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-text);
  background: var(--papier);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--netz); }
a:hover { color: var(--ink); }

/* ---------- Kopfbereich & Marke ---------- */

.topbar {
  background: var(--ink);
  padding: 20px 20px 18px;
}

.topbar-inner,
.hero-inner {
  max-width: 900px;
  margin: 0 auto;
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--volt);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.brand-mark::before {
  content: "";
  width: 8px;
  height: 19px;
  background: var(--ink);
  clip-path: polygon(58% 0, 0 56%, 40% 56%, 26% 100%, 100% 40%, 52% 40%);
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--papier);
}

.brand-text span { color: var(--aqua); }

.brand-claim {
  font-size: 0.85rem;
  color: var(--grau-hell);
}

.topbar-back {
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--grau-hell);
  text-decoration: none;
}

.topbar-back:hover { color: var(--volt); }

.hero-band {
  background: var(--ink);
  padding: 6px 20px 56px;
}

.hero-band h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 4.4vw, 2.5rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--papier);
  margin: 0 0 12px;
  text-wrap: pretty;
}

.hero-band p {
  margin: 0;
  color: var(--grau-hell);
  font-size: 0.98rem;
  line-height: 1.55;
  max-width: 58ch;
}

.page {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.page.page-pulled { margin-top: -32px; padding-top: 0; }

/* ---------- Karten ---------- */

.card {
  background: var(--card);
  border: 1px solid var(--kante);
  border-radius: var(--r-card);
  box-shadow: none;
  padding: 26px 28px;
  margin-bottom: 16px;
}

.card h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  margin: 0 0 4px;
}

details.card summary {
  cursor: pointer;
  list-style: none;
}

details.card summary::-webkit-details-marker { display: none; }
details.card summary h2 { display: inline-block; }

details.card summary h2::before {
  content: "▾ ";
  font-size: 0.8em;
  color: var(--grau);
}

details.card:not([open]) summary h2::before { content: "▸ "; }

/* ---------- Formular ---------- */

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.form-grid[hidden] { display: none; }

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--grau);
  margin-bottom: 6px;
}

.field input,
.field select {
  width: 100%;
  padding: 11px 13px;
  border: 1.5px solid var(--kante);
  border-radius: var(--r-field);
  font-size: 1rem;
  font-family: var(--font-text);
  color: var(--ink);
  background: var(--field);
}

.field input[type="number"] { font-family: var(--font-mono); }

.field input:focus,
.field select:focus,
.contact-form .field textarea:focus {
  outline: none;
  border-color: var(--ink);
  background: var(--card);
  box-shadow: 0 0 0 3px rgba(200, 247, 81, 0.55);
}

.toggle-group {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.toggle-group button {
  flex: 1;
  padding: 11px;
  border-radius: var(--r-field);
  border: 1.5px solid var(--kante);
  background: var(--card);
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-text);
  font-size: 0.9rem;
  color: var(--grau);
  transition: all 0.15s ease;
}

.toggle-group button:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.toggle-group button.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--papier);
}

.calc-btn {
  width: 100%;
  margin-top: 20px;
  padding: 15px;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-text);
  color: var(--ink);
  background: var(--volt);
  border: none;
  border-radius: var(--r-btn);
  cursor: pointer;
  transition: background 0.15s ease;
}

.calc-btn:hover { background: var(--volt-dark); }

/* ---------- Ergebnis ---------- */

#results { display: none; }
#results.visible { display: block; }

.summary-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.summary-chip {
  flex: 1;
  min-width: 140px;
  background: var(--ink);
  border-radius: 14px;
  padding: 16px 18px;
  box-shadow: none;
  text-align: left;
}

.summary-chip .value {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--papier);
}

.summary-chip:first-child .value { color: var(--volt); }

.summary-chip .label {
  font-size: 0.78rem;
  color: var(--grau-hell);
  margin-top: 3px;
}

#screenshot-area {
  background: var(--card);
  border: 1px solid var(--kante);
  border-radius: var(--r-card);
  padding: 26px 28px;
  box-shadow: none;
}

#screenshot-area .ss-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 12px;
}

#screenshot-area .ss-header h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

#screenshot-area .ss-header span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--grau);
}

.tariff-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 14px;
  border-radius: var(--r-btn);
  margin-bottom: 8px;
  border: 1.5px solid var(--kante);
  background: var(--card);
}

.tariff-row.rank-1 {
  border-color: var(--ink);
  background: var(--volt-tint);
}

.tariff-row.rank-2,
.tariff-row.rank-3 {
  border-color: var(--kante);
  background: var(--card);
}

.rank-badge {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--papier);
  color: var(--grau);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  flex-shrink: 0;
  font-size: 0.85rem;
}

.rank-1 .rank-badge {
  background: var(--volt);
  color: var(--ink);
}

.rank-2 .rank-badge,
.rank-3 .rank-badge {
  background: var(--papier);
  color: var(--grau);
}

.tariff-info { flex: 1; min-width: 0; }

.tariff-info .name {
  font-weight: 700;
  font-size: 0.95rem;
}

.tariff-info .sub {
  font-size: 0.78rem;
  color: var(--grau);
  margin-top: 2px;
}

.anbieter-link {
  color: var(--netz);
  font-weight: 600;
  text-decoration: none;
}

.anbieter-link:hover { text-decoration: underline; }

.tariff-info .estimated-tag {
  display: inline-block;
  margin-left: 6px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--hinweis-bg);
  color: var(--hinweis-text);
  padding: 2px 7px;
  border-radius: 6px;
  font-weight: 600;
}

.tariff-cost { text-align: right; flex-shrink: 0; }

.tariff-cost .total {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.tariff-cost .breakdown {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--grau);
}

.footnotes {
  margin-top: 18px;
  font-size: 0.78rem;
  color: var(--grau);
  line-height: 1.55;
  border-top: 1px dashed var(--kante);
  padding-top: 12px;
}

.footnotes strong { color: var(--ink); }

.hint-row {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--grau);
  line-height: 1.5;
}

/* ---------- Ladekarten-Auswahl ---------- */

.karten-option {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.9rem;
  padding: 8px 10px;
  border-radius: var(--r-field);
  cursor: pointer;
}

.karten-option:hover { background: var(--papier); }

.karten-option input {
  width: 16px;
  height: 16px;
  accent-color: var(--ink);
  flex-shrink: 0;
}

.karten-option-keine {
  font-weight: 700;
  border: 1.5px solid var(--ink);
  margin-bottom: 14px;
  background: var(--volt-tint);
}

.karten-auswahl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px 20px;
}

.karten-gruppe {
  border: 1px solid var(--kante);
  border-radius: var(--r-btn);
  padding: 8px;
}

.karten-gruppe-titel {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--grau);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 4px 10px 6px;
}

/* ---------- Footer ---------- */

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

.site-footer > * { max-width: 900px; }

.site-footer {
  padding: 32px 20px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

.affiliate-btn {
  display: inline-block;
  padding: 13px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  background: transparent;
  border: 1.5px solid var(--ink);
  border-radius: var(--r-btn);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.affiliate-btn:hover {
  background: var(--ink);
  color: var(--papier);
}

.affiliate-tag {
  font-size: 0.72rem;
  color: var(--grau);
}

.footer-nav { margin-top: 4px; }

.footer-nav a {
  font-size: 0.8rem;
  color: var(--grau);
  font-weight: 400;
}

.footer-nav a:hover { color: var(--ink); }

.footer-nav-link {
  font-size: 0.85rem;
  color: var(--grau-hell);
}

.footer-nav-link:hover { color: var(--volt); }

/* ---------- Rechtstexte & Kontakt ---------- */

.legal-card h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: -0.03em;
  margin-top: 0;
}

.legal-card h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  margin-top: 28px;
}

.legal-card h3 {
  font-size: 0.95rem;
  margin-top: 22px;
}

.legal-card h4 {
  font-size: 0.88rem;
  color: var(--grau);
  margin-top: 18px;
}

.legal-card p,
.legal-card li {
  line-height: 1.65;
  color: var(--text);
  font-size: 0.92rem;
}

.contact-form {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-form .field textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1.5px solid var(--kante);
  border-radius: var(--r-field);
  font-size: 1rem;
  font-family: var(--font-text);
  background: var(--field);
  color: var(--ink);
  resize: vertical;
}

.checkbox-field .checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text);
  cursor: pointer;
  line-height: 1.5;
}

.checkbox-field input[type="checkbox"] {
  width: auto;
  margin-top: 3px;
  flex-shrink: 0;
  accent-color: var(--ink);
}

.honeypot-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-error {
  background: var(--danger-bg);
  border: 1.5px solid var(--danger);
  color: var(--danger);
  border-radius: var(--r-field);
  padding: 12px 16px;
  margin-top: 16px;
  font-size: 0.9rem;
}

@media (max-width: 480px) {
  .tariff-row { flex-wrap: wrap; }
  .tariff-cost { text-align: left; width: 100%; }
  .card { padding: 20px 18px; }
  .brand-claim { display: none; }
}