/* ============================================================
   Klimaführerschein – Quiz  |  Stylesheet
   Color palette inspired by Bündnis 90 / Die Grünen
   ============================================================ */

:root {
  --color-primary:      #3a7c1e;
  --color-primary-dark: #1e5c0a;
  --color-primary-light:#4c9e2a;
  --color-accent:       #f5d600;
  --color-correct:      #1e7e34;
  --color-correct-bg:   #d4edda;
  --color-wrong:        #b02020;
  --color-wrong-bg:     #f8d7da;
  --color-neutral:      #edf5e9;
  --color-text:         #1a2e0e;
  --color-text-muted:   #4a6b3a;
  --color-border:       #b0cfa0;
  --color-white:        #ffffff;
  --radius:             10px;
  --shadow:             0 2px 12px rgba(0,0,0,0.10);
  --shadow-large:       0 6px 30px rgba(0,0,0,0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: #e4edd9;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#app {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* ---- Header ---- */
header {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.header-logo {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  height: 100px;
  width: auto;
}

.header-content {
  max-width: 820px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

header h1 {
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-align: center;
}

/* ---- Progress bar ---- */
.progress-bar {
  height: 6px;
  background: rgba(255,255,255,0.25);
  border-radius: 3px;
  overflow: hidden;
}

#progress-fill {
  height: 100%;
  width: 0%;
  background: var(--color-accent);
  border-radius: 3px;
  transition: width 0.4s ease;
}

#progress-text {
  font-size: 0.8rem;
  opacity: 0.85;
  text-align: center;
}

/* ---- Main ---- */
main {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

/* ---- Teaser ---- */
.teaser {
  background: var(--color-primary-dark);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 14px 20px;
  margin-bottom: 24px;
  font-size: 0.95rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.5;
}

.teaser strong {
  color: var(--color-accent);
}

/* ---- Category headers ---- */
.category-header {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-white);
  background: var(--color-primary-dark);
  border-radius: var(--radius);
  padding: 10px 18px;
  margin: 24px 0 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.category-header:first-child {
  margin-top: 0;
}

.subcategory-header {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  border-left: 4px solid var(--color-accent);
  padding: 6px 12px;
  margin: 14px 0 8px;
  background: var(--color-neutral);
  border-radius: 0 6px 6px 0;
  letter-spacing: 0.02em;
}

/* ---- Question card ---- */
.question-card {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  margin-bottom: 18px;
  border-left: 5px solid var(--color-border);
  transition: border-color 0.3s;
}

.question-card.answered {
  border-left-color: var(--color-primary);
}

.question-card.correct-marked {
  border-left-color: var(--color-correct);
  background: #f4fbf4;
}

.question-card.wrong-marked {
  border-left-color: var(--color-wrong);
  background: #fff6f6;
}

.question-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.question-number {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--color-white);
  color: var(--color-primary);
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  outline: 4px solid rgba(58, 124, 30, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.question-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  flex: 1;
  padding-top: 3px;
}

/* ---- Answer options ---- */
.answer-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.answer-label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  user-select: none;
  font-size: 0.95rem;
}

.answer-label:hover {
  border-color: var(--color-primary-light);
  background: var(--color-neutral);
}

.answer-label input[type="radio"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.answer-label.selected {
  border-color: var(--color-primary);
  background: #e8f5e0;
}

/* Evaluation styles */
.answer-label.correct {
  border-color: var(--color-correct);
  background: var(--color-correct-bg);
  color: var(--color-correct);
  font-weight: 600;
}

.answer-label.wrong-selected {
  border-color: var(--color-wrong);
  background: var(--color-wrong-bg);
  color: var(--color-wrong);
  font-weight: 600;
}

.answer-label.locked {
  cursor: default;
  pointer-events: none;
}

.answer-icon {
  margin-left: auto;
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* ---- Question status message ---- */
.question-status {
  margin-top: 12px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  display: none;
}

.question-status.correct {
  display: block;
  background: var(--color-correct-bg);
  color: var(--color-correct);
}

.question-status.wrong {
  display: block;
  background: var(--color-wrong-bg);
  color: var(--color-wrong);
}

/* ---- Actions ---- */
.actions {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hint-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* ---- Buttons ---- */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, opacity 0.2s;
  letter-spacing: 0.02em;
  min-width: 220px;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 3px 10px rgba(58,124,30,0.35);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-light);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-neutral);
}

/* ---- Error banner ---- */
#error-banner {
  display: none;
  background: var(--color-wrong-bg);
  border: 1px solid #f5c6cb;
  color: var(--color-wrong);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 20px;
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
}

#error-banner.visible {
  display: block;
}

/* ============================================================
   LICENSE CARD
   ============================================================ */
#certificate-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 28px 16px 36px;
  gap: 24px;
  background: #e4edd9;
}

/* Outer wrapper reserves layout space for the 2× scaled card */
.license-card-outer {
  width: 171.2mm;   /* 2 × 85.60mm */
  height: 107.96mm; /* 2 × 53.98mm */
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

#license-card {
  font-size: 9.5px; /* base for em units inside; doubled by scale(2) = 19px effective */
  width: 85.60mm;
  height: 53.98mm;
  flex-shrink: 0;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow-large);
  background: #f5fbf0;
  transform: scale(2);
  transform-origin: top center;
  display: flex;
  flex-direction: column;
}

/* Top strip */
.license-strip {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 10px;
}

.license-strip-stars {
  font-size: 0.65em;
  letter-spacing: 4px;
  color: var(--color-accent);
  white-space: nowrap;
}

.license-strip-title {
  position: absolute;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 1em;
  font-weight: 900;
  letter-spacing: 0.18em;
  pointer-events: none;
}

.license-strip-icon {
  font-size: 1.4em;
}

/* Card body */
.license-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Left column */
.license-left {
  background: #d4e8c4;
  border-right: 1px solid #9ec47e;
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-width: 72px;
  width: 72px;
}

.license-badge {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

.license-badge-logo {
  width: 32px;
  height: auto;
}

.license-category-label {
  font-size: 0.65em;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.license-category-value {
  font-size: 1.2em;
  font-weight: 900;
  color: var(--color-primary-dark);
  letter-spacing: 0.12em;
}

.license-nr-label {
  margin-top: 6px;
  font-size: 0.65em;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.license-nr-value {
  font-size: 0.72em;
  color: var(--color-primary-dark);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: center;
}

/* Right column */
.license-right {
  flex: 1;
  padding: 9px 11px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.license-field-row {
  display: flex;
  gap: 6px;
}

.license-field-row .license-field {
  flex: 1;
  min-width: 0;
}

.license-field {
  display: flex;
  align-items: flex-start;
  gap: 4px;
}

.license-field-nr {
  font-size: 0.72em;
  color: var(--color-text-muted);
  min-width: 11px;
  padding-top: 7px;
  font-weight: 600;
}

.license-field-body {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex: 1;
}

.license-field-label {
  font-size: 0.65em;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.license-field-value {
  font-size: 0.95em;
  font-weight: 600;
  color: var(--color-text);
}

/* Name input within the license */
.name-input {
  width: 100%;
  font-size: 1.05em;
  font-weight: 700;
  color: var(--color-text);
  border: none;
  border-bottom: 1px solid var(--color-text-muted);
  background: transparent;
  padding: 1px 0;
  outline: none;
  font-family: inherit;
}

#birthdate-display {
  cursor: pointer;
}

.name-input::placeholder {
  color: #aac09a;
  font-weight: 400;
  font-size: 0.9em;
}

.date-wrapper {
  position: relative;
  width: 100%;
}


.name-input.input-error {
  border-bottom-color: var(--color-wrong);
  animation: shake 0.3s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25%       { transform: translateX(-6px); }
  75%       { transform: translateX(6px); }
}

.license-signature {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-top: 3px;
}

.license-signature-line {
  width: 100%;
  height: 1px;
  background: var(--color-text-muted);
  margin-top: 14px;
}

.license-confirmed {
  margin-top: auto;
  padding-top: 8px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  border-top: 1px solid #9ec47e;
  font-style: italic;
}

/* Bottom accent strip */
.license-bottom-strip {
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-dark) 0%, var(--color-primary-light) 50%, var(--color-primary-dark) 100%);
}

/* ---- License / certificate actions ---- */
.success-banner-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.success-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 20px 28px;
  width: 100%;
  max-width: 680px;
}

.success-banner-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
}

.success-banner-text {
  font-size: 1.05rem;
  line-height: 1.5;
}

.success-banner-text strong {
  display: block;
  font-size: 1.3rem;
  margin-bottom: 2px;
}

.certificate-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 680px;
}

/* ---- Footer ---- */
footer {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: rgba(255,255,255,0.9);
  margin-top: 48px;
}

.footer-content {
  max-width: 820px;
  margin: 0 auto;
  padding: 36px 20px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.footer-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-white);
}

.footer-divider {
  width: 60px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  margin: 10px 0;
}

.footer-contact {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  padding: 14px 22px;
  margin-top: 4px;
}

.footer-contact-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-contact-icon svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
}

.footer-contact-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  text-align: left;
}

.footer-contact-label {
  font-size: 0.8rem;
  opacity: 0.8;
}

.footer-contact-link {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.footer-contact-link:hover {
  text-decoration: underline;
}

.footer-copy {
  margin-top: 12px;
  font-size: 0.75rem;
  opacity: 0.5;
}

/* ---- Utility ---- */
.hidden {
  display: none !important;
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  @page {
    margin: 0;
  }

  html, body {
    width: 100%;
    height: 100%;
    min-height: 0;
    margin: 0;
    padding: 0;
    background: white;
    overflow: hidden;
  }

  body {
    display: block;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  header,
  #quiz-section,
  #error-banner,
  footer,
  .no-print {
    display: none !important;
  }

  #app {
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
  }

  #certificate-section {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0;
    gap: 0;
    background: white;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .license-card-outer {
    width: 85.60mm;
    height: 53.98mm;
    margin: 0;
  }

  #license-card {
    width: 85.60mm;
    height: 53.98mm;
    transform: none !important;
    box-shadow: none;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .name-input {
    border-bottom: none;
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 600px) {
  .header-logo {
    height: 80px;
  }

  .header-content {
    padding: 12px 90px;
  }

  header h1 {
    font-size: 1.6rem;
  }

  main {
    padding: 16px 10px 36px;
  }

  .question-card {
    padding: 16px 14px;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    min-width: unset;
  }

  .license-card-outer {
    width: 100vw;
    overflow: visible;
  }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #d6e8cc;
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 6px;
  border: 2px solid #d6e8cc;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-dark);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) #d6e8cc;
}