@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@500;600;700&family=Rubik:wght@400;500;600;700;800&display=swap');

:root {
  --color-bg: #fff6e9;
  --color-pink: #ff6b9d;
  --color-pink-dark: #e0447c;
  --color-orange: #ff9f45;
  --color-orange-dark: #e97e1f;
  --color-teal: #2ec4b6;
  --color-teal-dark: #1f9c90;
  --color-blue: #4d8dff;
  --color-blue-dark: #2f6ede;
  --color-purple: #9b5de5;
  --color-purple-dark: #7c3fc2;
  --color-yellow: #ffd23f;
  --color-yellow-dark: #e0a800;
  --color-green: #6bcb77;
  --color-green-dark: #45a852;
  --color-correct: #4caf50;
  --color-wrong: #ff5c5c;
  --color-text: #3a2e5c;
  --card-radius: 28px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Rubik', 'Heebo', 'Assistant', sans-serif;
  background:
    radial-gradient(circle at 10% 15%, rgba(255,159,69,0.16) 0, transparent 40%),
    radial-gradient(circle at 90% 10%, rgba(77,141,255,0.14) 0, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(155,93,229,0.14) 0, transparent 40%),
    radial-gradient(circle at 15% 90%, rgba(46,196,182,0.14) 0, transparent 40%),
    var(--color-bg);
  color: var(--color-text);
  font-size: 20px;
  line-height: 1.7;
}

header.site-header {
  position: relative;
  background: linear-gradient(120deg, var(--color-pink), var(--color-orange) 45%, var(--color-purple) 100%);
  color: white;
  padding-block: 30px 40px;
  padding-inline: 20px;
  text-align: center;
  border-end-start-radius: 40px;
  border-end-end-radius: 40px;
  box-shadow: 0 6px 0 rgba(0,0,0,0.12);
  overflow: hidden;
}

header.site-header::before,
header.site-header::after {
  content: '⭐';
  position: absolute;
  font-size: 1.8rem;
  animation: floaty 3.5s ease-in-out infinite;
  opacity: 0.85;
}

header.site-header::before {
  inset-inline-start: 8%;
  top: 18%;
  animation-delay: 0s;
}

header.site-header::after {
  inset-inline-end: 10%;
  top: 55%;
  animation-delay: 1.2s;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(12deg); }
}

header.site-header h1 {
  margin: 0;
  font-family: 'Fredoka', 'Rubik', sans-serif;
  font-size: 2.6rem;
  font-weight: 600;
  text-shadow: 0 3px 0 rgba(0,0,0,0.15);
}

header.site-header p {
  margin-block-start: 10px;
  font-size: 1.2rem;
  font-weight: 500;
  opacity: 0.97;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 30px 20px 60px;
}

.card {
  background: white;
  border-radius: var(--card-radius);
  padding: 26px;
  box-shadow: 0 8px 0 rgba(0,0,0,0.06), 0 10px 24px rgba(155,93,229,0.14);
  margin-block-end: 26px;
  border: 3px solid #fff;
}

.btn {
  display: inline-block;
  font-family: 'Fredoka', 'Rubik', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: white;
  background: var(--color-blue);
  border: none;
  border-radius: 999px;
  padding: 16px 36px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 5px 0 var(--color-blue-dark);
}

.btn:hover {
  transform: translateY(-3px) scale(1.03);
}

.btn:active {
  transform: translateY(3px) scale(0.98);
  box-shadow: 0 2px 0 var(--color-blue-dark);
}

.btn-primary {
  background: var(--color-pink);
  box-shadow: 0 5px 0 var(--color-pink-dark);
}

.btn-secondary {
  background: var(--color-teal);
  box-shadow: 0 4px 0 var(--color-teal-dark);
  font-size: 1rem;
  padding: 10px 22px;
}

.btn-link {
  background: transparent;
  color: var(--color-blue);
  box-shadow: none;
  padding: 8px 4px;
  text-decoration: underline;
}

.center {
  text-align: center;
}

/* Letter cards grid */
.letters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-block: 26px;
}

.letter-card {
  background: white;
  border-radius: var(--card-radius);
  padding: 22px 16px;
  text-align: center;
  box-shadow: 0 8px 0 rgba(0,0,0,0.06), 0 10px 20px rgba(0,0,0,0.08);
  border-block-end: 8px solid var(--card-color, var(--color-purple));
  animation: pop-in 0.5s ease backwards;
  transition: transform 0.2s ease;
}

.letter-card:hover {
  transform: translateY(-6px) rotate(-1deg);
}

.letter-card:nth-child(1) { --card-color: var(--color-pink); animation-delay: 0.05s; }
.letter-card:nth-child(2) { --card-color: var(--color-orange); animation-delay: 0.15s; }
.letter-card:nth-child(3) { --card-color: var(--color-teal); animation-delay: 0.25s; }
.letter-card:nth-child(4) { --card-color: var(--color-blue); animation-delay: 0.35s; }
.letter-card:nth-child(5) { --card-color: var(--color-purple); animation-delay: 0.45s; }

@keyframes pop-in {
  0% { opacity: 0; transform: scale(0.7) translateY(14px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

.letter-card .big-letters {
  font-family: 'Fredoka', sans-serif;
  font-size: 3.4rem;
  font-weight: 600;
  color: var(--card-color, var(--color-purple));
  direction: ltr;
  unicode-bidi: isolate;
  line-height: 1;
  margin-block-end: 6px;
}

.letter-card .emoji {
  font-size: 3.4rem;
  margin-block: 8px;
  display: inline-block;
  animation: wiggle 2.5s ease-in-out infinite;
}

@keyframes wiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-8deg); }
  75% { transform: rotate(8deg); }
}

.letter-card .en-word {
  direction: ltr;
  unicode-bidi: isolate;
  font-family: 'Fredoka', sans-serif;
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--color-text);
}

.letter-card .he-word {
  color: #7a7194;
  font-size: 1.05rem;
  margin-block-start: 2px;
  font-weight: 500;
}

.letter-card .phonetic {
  color: #a49dbf;
  font-size: 0.9rem;
  margin-block-start: 4px;
}

.speak-btn {
  margin-block-start: 14px;
  background: var(--card-color, var(--color-teal));
  box-shadow: 0 4px 0 rgba(0,0,0,0.18);
  font-size: 1.05rem;
  padding: 10px 22px;
}

/* Quiz */
.quiz-question {
  display: none;
}

.quiz-question.active {
  display: block;
}

.quiz-prompt {
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
  margin-block-end: 6px;
}

.quiz-emoji {
  font-size: 4.5rem;
  text-align: center;
  margin-block: 12px;
  animation: pop-in 0.4s ease;
}

.quiz-options {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-block: 22px;
}

.quiz-option {
  font-family: 'Fredoka', sans-serif;
  font-size: 2.1rem;
  font-weight: 600;
  width: 88px;
  height: 88px;
  border-radius: 24px;
  border: 4px solid var(--color-blue);
  background: white;
  color: var(--color-blue);
  cursor: pointer;
  direction: ltr;
  unicode-bidi: isolate;
  box-shadow: 0 5px 0 rgba(0,0,0,0.08);
  transition: transform 0.12s ease;
}

.quiz-option:hover:not(:disabled) {
  transform: scale(1.08) rotate(-2deg);
}

.quiz-option:disabled {
  cursor: default;
}

.quiz-option.correct {
  background: var(--color-correct);
  border-color: var(--color-correct);
  color: white;
  animation: bounce-happy 0.5s ease;
}

.quiz-option.wrong {
  background: var(--color-wrong);
  border-color: var(--color-wrong);
  color: white;
  animation: shake 0.4s ease;
}

@keyframes bounce-happy {
  0% { transform: scale(1); }
  40% { transform: scale(1.25) rotate(8deg); }
  70% { transform: scale(0.95); }
  100% { transform: scale(1.1); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

.quiz-feedback {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 600;
  min-height: 1.6em;
}

.quiz-feedback.correct { color: var(--color-correct); }
.quiz-feedback.wrong { color: var(--color-wrong); }

.progress-bar {
  height: 14px;
  background: #f1ecff;
  border-radius: 10px;
  overflow: hidden;
  margin-block-end: 22px;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-pink), var(--color-orange), var(--color-yellow), var(--color-green), var(--color-blue));
  width: 0%;
  border-radius: 10px;
  transition: width 0.4s ease;
}

.quiz-result {
  display: none;
  text-align: center;
}

.quiz-result.active {
  display: block;
  animation: pop-in 0.4s ease;
}

.quiz-result .score {
  font-family: 'Fredoka', sans-serif;
  font-size: 3rem;
  font-weight: 600;
  color: var(--color-pink);
  margin-block: 10px;
}

footer {
  text-align: center;
  color: #9c92b8;
  font-size: 0.95rem;
  padding-block: 24px;
}

footer p {
  margin-block: 4px;
}

footer .copyright {
  font-size: 0.8rem;
}

@media (max-width: 480px) {
  header.site-header h1 { font-size: 1.8rem; }
  header.site-header::before,
  header.site-header::after { display: none; }
  .letter-card .big-letters { font-size: 2.8rem; }
  .quiz-option { width: 74px; height: 74px; font-size: 1.8rem; }
}