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

body {
  background: #0a0a1a;
  color: #e0e0e0;
  font-family: 'Segoe UI', Arial, sans-serif;
  min-height: 100vh;
  padding: 24px 16px;
}

h1 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 8px;
  color: #ffffff;
  letter-spacing: 2px;
}

.app-navigatie {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 auto 18px;
}

.app-link {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(159, 211, 255, 0.35);
  background: rgba(20, 33, 61, 0.72);
  color: #dce9ff;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
}

.app-link:hover {
  background: rgba(24, 41, 75, 0.92);
}

.terug-start {
  background: rgba(24, 41, 75, 0.92);
}

.inhoud {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ── Meetpunten bovenaan ── */
.meetpunten {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.kaart {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  padding: 16px 20px;
  flex: 1;
  min-width: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.kaart-a { border: 2px solid rgba(0, 212, 255, 0.3); }
.kaart-b { border: 2px solid rgba(0, 255, 136, 0.3); }

.kaart h2 { font-size: 1rem; letter-spacing: 1px; }
.kaart-a h2 { color: #00d4ff; }
.kaart-b h2 { color: #00ff88; }

.status-klein { font-size: 0.8rem; color: #666; }

.hoek-display {
  font-size: 2.5rem;
  font-weight: 900;
}
.kaart-a .hoek-display { color: #00d4ff; }
.kaart-b .hoek-display { color: #00ff88; }

.vastgelegde-hoek {
  font-size: 0.85rem;
  color: #f39c12;
  min-height: 1.2em;
}

/* ── Berekening ── */
.berekening {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 14px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.berekening label {
  font-size: 0.95rem;
  color: #cfe0ff;
}

.berekening input,
.keuze-select {
  background-color: #14213d;
  color: #f8fbff;
  border: 1px solid #5177c2;
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  color-scheme: dark;
}

.berekening input {
  padding: 10px 14px;
  font-size: 1.1rem;
  width: 120px;
  text-align: center;
}

.berekening input::placeholder {
  color: #b7cfff;
  opacity: 0.85;
}

.berekening input:hover,
.keuze-select:hover {
  border-color: #79a7ff;
  background-color: #18294b;
}

.berekening input:focus,
.keuze-select:focus {
  outline: 2px solid #9fd3ff;
  outline-offset: 2px;
  border-color: #9fd3ff;
}

#teamnaam {
  width: min(100%, 260px);
}

#dag,
#sessie {
  width: min(100%, 260px);
}

.keuze-beheer {
  width: min(100%, 360px);
  background: rgba(20, 33, 61, 0.72);
  border: 1px solid #5177c2;
  border-radius: 10px;
  padding: 8px 10px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.keuze-beheer summary {
  color: #dce9ff;
  cursor: pointer;
  font-size: 0.9rem;
  list-style: none;
  text-align: center;
}

.keuze-beheer summary::-webkit-details-marker {
  display: none;
}

.keuze-beheer-samenvatting {
  display: block;
  color: #c1d5ff;
  font-size: 0.8rem;
  margin-top: 2px;
}

.keuze-beheer-inhoud {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.keuze-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, #dce9ff 50%),
    linear-gradient(135deg, #dce9ff 50%, transparent 50%);
  background-position:
    calc(100% - 18px) calc(50% - 3px),
    calc(100% - 12px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding: 10px 40px 10px 12px;
  font-size: 0.95rem;
}

.keuze-select option {
  background: #14213d;
  color: #f8fbff;
}

.kleine-knop {
  border: none;
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
}

.verwijder-knop {
  background: rgba(255, 107, 107, 0.18);
  border: 1px solid rgba(255, 107, 107, 0.45);
  color: #ffd6d6;
}

.verwijder-knop:hover {
  background: rgba(255, 107, 107, 0.28);
}

#hoogte-display {
  font-size: 3.5rem;
  font-weight: 900;
  color: #f1c40f;
  letter-spacing: 2px;
  text-shadow: 0 0 24px rgba(241, 196, 15, 0.5);
  min-height: 1.2em;
  text-align: center;
}

/* ── Canvas driehoek ── */
#driehoek-canvas {
  display: block;
  background: #050510;
  border-radius: 12px;
  border: 1px solid #222;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
}

/* ── Knoppen ── */
.grote-knop {
  border: none;
  border-radius: 10px;
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s, opacity 0.2s;
}

.grote-knop:hover { opacity: 0.85; transform: scale(1.02); }
.kleine-knop:hover { opacity: 0.9; }

.verbind-knop-a { background: linear-gradient(135deg, #0066cc, #0099ff); color: white; }
.verbind-knop-b { background: linear-gradient(135deg, #006633, #00cc66); color: white; }
.vastleg-knop   { background: rgba(243,156,18,0.15); color: #f39c12; border: 2px solid #f39c12; }
.bereken-knop   { background: linear-gradient(135deg, #c0932c, #f1c40f); color: #000; font-size: 1.1rem; padding: 14px 40px; }
.opslaan-knop   { background: linear-gradient(135deg, #7d3cff, #b36bff); color: white; width: min(100%, 280px); }

.ranglijst-status {
  min-height: 1.2em;
  color: #c7d7ff;
  text-align: center;
  font-size: 0.9rem;
}

.ranglijst-link {
  color: #8fd3ff;
  text-decoration: none;
  font-weight: 700;
}

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