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

:root {
  --mor: #6d5efc;
  --mor-koyu: #4b3fd6;
  --yesil: #16a34a;
  --kirmizi: #dc2626;
  --metin: #1e2030;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, #6d5efc 0%, #8f6dfd 50%, #c86dd7 100%);
  color: var(--metin);
}

.kart {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 22px;
  padding: 36px 30px;
  box-shadow: 0 25px 60px rgba(40, 20, 90, 0.35);
  animation: girisAnim 0.5s ease;
}

@keyframes girisAnim {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

h1 {
  font-size: 1.55rem;
  text-align: center;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--mor), #c86dd7);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.aciklama {
  text-align: center;
  font-size: 0.92rem;
  color: #5b5f72;
  margin-bottom: 26px;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

input {
  width: 100%;
  padding: 14px 16px;
  font-size: 1.05rem;
  border: 2px solid #e3e3ef;
  border-radius: 12px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus {
  border-color: var(--mor);
  box-shadow: 0 0 0 4px rgba(109, 94, 252, 0.15);
}

button {
  width: 100%;
  margin-top: 18px;
  padding: 14px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--mor), var(--mor-koyu));
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(75, 63, 214, 0.4);
}

button:active {
  transform: translateY(0);
}

.sonuc {
  margin-top: 22px;
  padding: 18px;
  border-radius: 14px;
  text-align: center;
  font-size: 1rem;
  line-height: 1.5;
  animation: girisAnim 0.35s ease;
}

.sonuc .puan {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  margin: 4px 0;
}

.sonuc.basarili {
  background: #eaf7ef;
  color: var(--yesil);
}

.sonuc.imkansiz {
  background: #fdeaea;
  color: var(--kirmizi);
}

.sonuc.hata {
  background: #fff6e5;
  color: #b45309;
  font-size: 0.95rem;
}

.sonuc small {
  color: #5b5f72;
  font-weight: 500;
}

.kurallar {
  margin-top: 22px;
  text-align: center;
  font-size: 0.78rem;
  color: #9094a6;
}

@media (max-width: 460px) {
  .kart { padding: 28px 20px; }
  h1 { font-size: 1.35rem; }
}