/* ============================================================
   Sacred Birman Colour Calculator — Stylesheet
   Aesthetic: Refined luxury — deep sapphire, warm gold, ivory
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500&display=swap');

/* ── Design tokens ─────────────────────────────────────────── */
#birman-colour-calculator {
  --sapphire:    #1A2E5A;
  --sapphire-d:  #111E3C;
  --sapphire-l:  #2A4480;
  --gold:        #B8902A;
  --gold-l:      #D4AC4A;
  --gold-pale:   #F5EDD0;
  --ivory:       #FDFAF4;
  --ivory-d:     #F3EDE0;
  --warm-grey:   #8A8070;
  --warm-grey-l: #C8C0B0;
  --white:       #FFFFFF;
  --error:       #C0392B;
  --success:     #2E7D52;
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --shadow-sm:   0 2px 8px rgba(26,46,90,0.10);
  --shadow-md:   0 6px 24px rgba(26,46,90,0.16);
  --shadow-lg:   0 16px 48px rgba(26,46,90,0.22);
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --transition:   all 0.22s cubic-bezier(0.4,0,0.2,1);

  font-family: var(--font-body);
  color: var(--sapphire-d);
  background: transparent;
  box-sizing: border-box;
  line-height: 1.6;
}

#birman-colour-calculator *,
#birman-colour-calculator *::before,
#birman-colour-calculator *::after { box-sizing: inherit; }

/* ── Init loader ────────────────────────────────────────────── */
.birman-loading-init {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 60px 20px;
  color: var(--warm-grey);
  font-size: 0.95rem;
}

.birman-paw-spinner svg {
  width: 64px;
  height: 64px;
  fill: var(--gold);
  animation: birman-pulse 1.4s ease-in-out infinite;
}

@keyframes birman-pulse {
  0%, 100% { opacity: 0.4; transform: scale(0.92); }
  50%       { opacity: 1;   transform: scale(1.08); }
}

/* ── App wrapper ────────────────────────────────────────────── */
.birman-app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px 60px;
}

/* ── Header ─────────────────────────────────────────────────── */
.birman-header {
  text-align: center;
  padding: 48px 20px 36px;
  position: relative;
}

.birman-header::before {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 0 auto 24px;
}

.birman-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--sapphire);
  margin: 0 0 10px;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.birman-header h1 em {
  font-style: italic;
  color: var(--gold);
}

.birman-header p {
  font-size: 0.95rem;
  color: var(--warm-grey);
  max-width: 520px;
  margin: 0 auto;
  font-weight: 300;
}

/* ── Form card ──────────────────────────────────────────────── */
.birman-form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--ivory-d);
  padding: 36px;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}

.birman-form-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--sapphire), var(--gold), var(--sapphire));
}

.birman-parents-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

@media (max-width: 680px) {
  .birman-parents-grid { grid-template-columns: 1fr; }
  .birman-form-card { padding: 24px 20px; }
}

/* ── Parent panels ──────────────────────────────────────────── */
.birman-parent-panel {
  background: var(--ivory);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--ivory-d);
}

.birman-parent-panel h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--sapphire);
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.birman-parent-panel h3 .role-badge {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--sapphire);
  color: var(--white);
  padding: 3px 10px;
  border-radius: 20px;
}

.birman-parent-panel h3 .role-badge.female { background: var(--gold); }

/* ── Form fields ────────────────────────────────────────────── */
.birman-field {
  margin-bottom: 16px;
}

.birman-field label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--warm-grey);
  margin-bottom: 6px;
}

.birman-field select,
.birman-field input[type="text"] {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--warm-grey-l);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--sapphire-d);
  transition: var(--transition);
  appearance: none;
  -webkit-appearance: none;
  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 d='M1 1l5 5 5-5' stroke='%238A8070' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
}

.birman-field select:focus,
.birman-field input[type="text"]:focus {
  outline: none;
  border-color: var(--sapphire);
  box-shadow: 0 0 0 3px rgba(26,46,90,0.1);
}

/* ── Toggle (checkbox) fields ───────────────────────────────── */
.birman-toggle-field {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  cursor: pointer;
}

.birman-toggle {
  position: relative;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}

.birman-toggle input { opacity: 0; width: 0; height: 0; position: absolute; }

.birman-toggle-track {
  position: absolute;
  inset: 0;
  background: var(--warm-grey-l);
  border-radius: 11px;
  transition: var(--transition);
}

.birman-toggle-thumb {
  position: absolute;
  left: 3px;
  top: 3px;
  width: 16px;
  height: 16px;
  background: var(--white);
  border-radius: 50%;
  transition: var(--transition);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.birman-toggle input:checked ~ .birman-toggle-track { background: var(--sapphire); }
.birman-toggle input:checked ~ .birman-toggle-thumb { transform: translateX(18px); }

.birman-toggle-label {
  font-size: 0.88rem;
  color: var(--sapphire-d);
  user-select: none;
}

/* ── Color swatch preview ───────────────────────────────────── */
.birman-swatch-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  padding: 6px 10px;
  background: var(--ivory-d);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--warm-grey);
}

.birman-swatch-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1.5px solid rgba(0,0,0,0.12);
  flex-shrink: 0;
  transition: var(--transition);
}

/* ── Calculate button ───────────────────────────────────────── */
.birman-calculate-btn {
  width: 100%;
  padding: 16px 24px;
  margin-top: 24px;
  background: linear-gradient(135deg, var(--sapphire), var(--sapphire-l));
  color: var(--white);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.birman-calculate-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(184,144,42,0.25));
  opacity: 0;
  transition: var(--transition);
}

.birman-calculate-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.birman-calculate-btn:hover::before { opacity: 1; }
.birman-calculate-btn:active { transform: translateY(0); }
.birman-calculate-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.birman-btn-icon { margin-right: 8px; font-size: 1rem; }

/* ── Loading state ──────────────────────────────────────────── */
.birman-loading {
  text-align: center;
  padding: 48px 20px;
  display: none;
}

.birman-loading.active { display: block; }

.birman-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--ivory-d);
  border-top-color: var(--sapphire);
  border-radius: 50%;
  animation: birman-spin 0.9s linear infinite;
  margin: 0 auto 16px;
}

@keyframes birman-spin { to { transform: rotate(360deg); } }

.birman-loading p {
  font-size: 0.9rem;
  color: var(--warm-grey);
  font-style: italic;
}

/* ── Error message ──────────────────────────────────────────── */
.birman-error {
  background: #FDF0EE;
  border: 1.5px solid #E8B0A8;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  color: var(--error);
  font-size: 0.9rem;
  display: none;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.birman-error.active { display: flex; }
.birman-error-icon { font-size: 1.2rem; flex-shrink: 0; }

/* ── Results section ────────────────────────────────────────── */
.birman-results { display: none; }
.birman-results.active { display: block; }

.birman-results-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--ivory-d);
}

.birman-results-header h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--sapphire);
  margin: 0;
}

.birman-parent-summary {
  font-size: 0.82rem;
  color: var(--warm-grey);
  font-style: italic;
}

/* ── Result cards grid ──────────────────────────────────────── */
.birman-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}

.birman-result-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--ivory-d);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(12px);
  animation: birman-fadeup 0.4s forwards;
}

.birman-result-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--gold-l);
}

@keyframes birman-fadeup {
  to { opacity: 1; transform: translateY(0); }
}

.birman-result-top {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
}

.birman-result-swatch {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid rgba(0,0,0,0.1);
  flex-shrink: 0;
  position: relative;
}

.birman-result-swatch::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
}

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

.birman-result-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--sapphire);
  line-height: 1.2;
  margin: 0 0 4px;
}

.birman-result-code {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--warm-grey);
  font-family: 'Courier New', monospace;
  text-transform: uppercase;
}

/* ── Probability bar ────────────────────────────────────────── */
.birman-prob-bar-wrap {
  margin-top: 12px;
}

.birman-prob-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 5px;
}

.birman-prob-pct {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--sapphire);
  line-height: 1;
}

.birman-prob-of { font-size: 0.75rem; color: var(--warm-grey); }

.birman-bar-track {
  height: 6px;
  background: var(--ivory-d);
  border-radius: 3px;
  overflow: hidden;
}

.birman-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--sapphire), var(--gold));
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.7s cubic-bezier(0.4,0,0.2,1);
}

.birman-result-card.visible .birman-bar-fill {
  transform: scaleX(1);
}

/* ── Sex breakdown ──────────────────────────────────────────── */
.birman-sex-breakdown {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.birman-sex-chip {
  flex: 1;
  background: var(--ivory);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  text-align: center;
}

.birman-sex-chip .sex-icon { font-size: 0.9rem; }
.birman-sex-chip .sex-pct {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--sapphire-d);
}
.birman-sex-chip .sex-label {
  font-size: 0.68rem;
  color: var(--warm-grey);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.birman-female-only-badge {
  display: inline-block;
  margin-top: 10px;
  background: linear-gradient(135deg, #8B4B8B, #C47AC4);
  color: var(--white);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 12px;
}

/* ── Photos gallery ─────────────────────────────────────────── */
.birman-photos-section {
  margin-top: 40px;
}

.birman-photos-section h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--sapphire);
  margin: 0 0 4px;
}

.birman-photos-section .birman-photos-subtitle {
  font-size: 0.82rem;
  color: var(--warm-grey);
  font-style: italic;
  margin-bottom: 18px;
}

.birman-photos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.birman-photo-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--ivory-d);
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.birman-photo-item:hover { transform: scale(1.03); box-shadow: var(--shadow-md); }

.birman-photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.birman-photo-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(17,30,60,0.75));
  color: var(--white);
  font-size: 0.72rem;
  padding: 16px 10px 8px;
  opacity: 0;
  transition: var(--transition);
}

.birman-photo-item:hover .birman-photo-caption { opacity: 1; }

.birman-photo-source {
  position: absolute;
  top: 8px; right: 8px;
  background: rgba(17,30,60,0.65);
  color: rgba(255,255,255,0.9);
  font-size: 0.62rem;
  padding: 2px 7px;
  border-radius: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Genetics notes ─────────────────────────────────────────── */
.birman-genetics-notes {
  margin-top: 32px;
  background: var(--gold-pale);
  border: 1px solid rgba(184,144,42,0.25);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.birman-genetics-notes h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--sapphire);
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.birman-genetics-notes p,
.birman-genetics-notes ul {
  font-size: 0.82rem;
  color: var(--warm-grey);
  line-height: 1.7;
  margin: 4px 0;
}

.birman-genetics-notes ul { padding-left: 18px; }

/* ── Footer credit ──────────────────────────────────────────── */
.birman-footer {
  text-align: center;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--ivory-d);
  font-size: 0.75rem;
  color: var(--warm-grey-l);
}

.birman-footer a { color: var(--gold); text-decoration: none; }
.birman-footer a:hover { text-decoration: underline; }

/* ── Animation delays for result cards ─────────────────────── */
.birman-result-card:nth-child(1)  { animation-delay: 0.05s; }
.birman-result-card:nth-child(2)  { animation-delay: 0.10s; }
.birman-result-card:nth-child(3)  { animation-delay: 0.15s; }
.birman-result-card:nth-child(4)  { animation-delay: 0.20s; }
.birman-result-card:nth-child(5)  { animation-delay: 0.25s; }
.birman-result-card:nth-child(6)  { animation-delay: 0.30s; }
.birman-result-card:nth-child(7)  { animation-delay: 0.35s; }
.birman-result-card:nth-child(8)  { animation-delay: 0.40s; }
.birman-result-card:nth-child(9)  { animation-delay: 0.45s; }
.birman-result-card:nth-child(10) { animation-delay: 0.50s; }
.birman-result-card:nth-child(n+11) { animation-delay: 0.55s; }

/* ── Naam-invoerveld ────────────────────────────────────────── */
.birman-field input[type="text"] {
  background-image: none; /* geen pijl zoals bij select */
}

/* ── Naam-tag in uitkomst ───────────────────────────────────── */
.birman-parent-name-tag {
  display: inline-block;
  background: var(--sapphire);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  padding: 3px 14px 4px;
  border-radius: 20px;
  margin: 0 4px;
  letter-spacing: 0.02em;
}

/* ── Printknop ──────────────────────────────────────────────── */
.birman-print-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 22px;
  background: var(--white);
  color: var(--sapphire);
  border: 2px solid var(--sapphire);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  align-self: flex-start;
}

.birman-print-btn:hover {
  background: var(--sapphire);
  color: var(--white);
}

/* ── Oudersamenvatting voor afdruk ──────────────────────────── */
.birman-print-summary {
  margin-bottom: 28px;
  display: none; /* alleen zichtbaar bij afdrukken */
}

.birman-print-parents {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.birman-print-parents th,
.birman-print-parents td {
  padding: 8px 12px;
  border: 1px solid var(--ivory-d);
  text-align: left;
}

.birman-print-parents th {
  background: var(--sapphire);
  color: var(--white);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

.birman-print-parents tr:nth-child(even) td { background: var(--ivory); }

/* ── Responsive tweaks ──────────────────────────────────────── */
@media (max-width: 500px) {
  .birman-results-grid { grid-template-columns: 1fr; }
  .birman-photos-grid  { grid-template-columns: 1fr 1fr; }
}