:root {
  --ink: #25355f;
  --sky: #dff5ff;
  --yellow: #ffd83d;
  --pink: #ff6b9c;
  --green: #4bc883;
  --red: #ff6363;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  width: 100%;
  min-height: calc(100 * min(var(--vh, 1vh), 1vh));
  font-family: "DM Sans", sans-serif;
  color: var(--ink);
  overflow-x: hidden;
}

.game-root {
      min-height: calc(100 * min(var(--vh, 1vh), 1vh));
      width: 100%;
      position: relative;
      overflow: hidden;
      /* Masukkan link gambar latar belakang awak di sini */
      background-image: url('backgrounds.jpg');
      background-size: cover; /* Pastikan gambar penuh satu skrin */
      background-position: center; /* Kedudukan gambar di tengah */
      background-repeat: no-repeat;  /* Jangan ulang gambar berkali-kali */

    }

.screen {
  display: none;
  width: 100%;
  min-height: calc(100 * min(var(--vh, 1vh), 1vh));
  padding: 1.25rem;
  position: relative;
  z-index: 1;
}

/* 1. Animasi bila skrin BAHARU dibuka (Efek anjal / Spring) */
.screen.active {
  display: flex;
  animation: popMasuk 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) both; 
}

/* 2. Animasi bila skrin LAMA ditutup (Mengecil dan pudar) */
.screen.keluar {
  animation: popKeluar 0.3s ease-in both;
}

.menu-shell, .game-shell, .finish-shell, .records-shell {
  width: 100%;
  max-width: 1080px;
  margin: auto;
}

.menu-shell { max-width: 850px; }

.kid-title {
  font-family: "Fredoka", sans-serif;
  text-shadow: 0 4px 0 rgba(255,255,255,.75);
  letter-spacing: -.03em;
}

.bubble-card {
  border: 5px solid #fff;
  border-radius: 32px;
  box-shadow: 0 12px 0 rgba(37, 53, 95, .13), 0 18px 30px rgba(37,53,95,.12);
}

.choice-card {
  border: 4px solid #fff;
  border-radius: 24px;
  box-shadow: 0 7px 0 rgba(37,53,95,.12);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.choice-card:hover, .choice-card:focus-within {
  transform: translateY(-3px);
  box-shadow: 0 10px 0 rgba(37,53,95,.12);
}

.choice-card input:checked + span {
  outline: 4px solid #25355f;
  outline-offset: 3px;
  transform: scale(1.03);
}

.big-btn {
  border: 0;
  border-bottom: 6px solid rgba(37,53,95,.22);
  border-radius: 20px;
  min-height: 62px;
  transition: transform .16s ease, border-bottom-width .16s ease, filter .16s ease;
}

.big-btn:hover { filter: brightness(1.04); transform: translateY(-2px); }
.big-btn:active { transform: translateY(4px); border-bottom-width: 2px; }
.big-btn:focus-visible, .answer-btn:focus-visible, .match-item:focus-visible {
  outline: 4px solid #25355f;
  outline-offset: 4px;
}

.answer-btn {
  min-height: 92px;
  border: 4px solid #fff;
  border-bottom: 7px solid rgba(37,53,95,.14);
  border-radius: 24px;
  font-family: "Fredoka", sans-serif;
  font-size: clamp(1.4rem, 3vw, 2rem);
  transition: transform .16s ease, background .16s ease;
}
.answer-btn:hover { transform: translateY(-3px); }
.answer-btn:active { transform: translateY(3px); border-bottom-width: 3px; }

.feedback-good { animation: popGood .6s ease; }
.feedback-bad { animation: shakeBad .5s ease; }

.draggable-token {
  cursor: grab;
  user-select: none;
  touch-action: none;
}
.drag-target {
  min-width: 126px;
  min-height: 92px;
  border: 4px dashed #81a1cb;
  border-radius: 22px;
  transition: background .2s, border-color .2s;
}
.drag-target.over { background: #fff4b6; border-color: #f3ae17; }

.match-item {
  border: 4px solid #fff;
  border-radius: 18px;
  min-height: 66px;
  font-family: "Fredoka", sans-serif;
  transition: transform .15s ease, outline .15s ease;
}
.match-item.selected { outline: 5px solid #ffb20f; transform: scale(1.04); }
.match-item.done { background: #baf2c8 !important; pointer-events: none; }

#trace-canvas {
  width: min(100%, 410px);
  aspect-ratio: 1 / .72;
  background: #fffdf4;
  border: 5px dashed #8bb8df;
  border-radius: 24px;
  touch-action: none;
}

.stars { color: #ffb800; filter: drop-shadow(0 2px 0 #bf7d00); }
.hidden { display: none !important; }

/* 3. Pergerakan Kamera (Keyframes) */
@keyframes popMasuk {
  0% { opacity: 0; transform: scale(0.8) translateY(30px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }}

@keyframes popKeluar {
  0% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(0.9); }}

@keyframes popGood { 50% { transform: scale(1.04); background: #c6f6d5; } }
@keyframes shakeBad { 20%, 60% { transform: translateX(-9px); } 40%, 80% { transform: translateX(9px); } }

/* --- KOD GAMBAR BUTANG MULA (SAIZ ASAL) --- */

/* 1. Jadikan latar belakang butang asal 'hilang' supaya tinggal gambar sahaja */
#butangbahasa {
  background: transparent;
  border: none;
  padding: 0;
  outline: none;
  cursor: pointer;
}

/* 2. Sediakan animasi untuk gambar */
#butangbahasa img {
  transition: transform 0.2s ease, filter 0.2s ease;
  border-radius: 20px; /* Letak nilai ini kalau gambar awak segi empat dan nak bucunya bulat */
}

/* 3. Efek Hover: Gambar akan membesar sikit ikut bentuk asalnya */
#butangbahasa:hover img {
  transform: scale(1.06) translateY(-3px); /* Membesar 6% dan naik ke atas sikit */
  filter: drop-shadow(0px 10px 12px rgba(0,0,0,0.3)); /* Bayang-bayang di luar gambar */
}

/* 4. Efek bila butang diklik */
#butangbahasa:active img {
  transform: scale(0.95) translateY(2px); /* Mengecil sikit seolah-olah ditekan */
}

/* 1. Jadikan latar belakang butang asal 'hilang' supaya tinggal gambar sahaja */
#butangmatematik {
  background: transparent;
  border: none;
  padding: 0;
  outline: none;
  cursor: pointer;
}

/* 2. Sediakan animasi untuk gambar */
#butangmatematik img {
  transition: transform 0.2s ease, filter 0.2s ease;
  border-radius: 20px; /* Letak nilai ini kalau gambar awak segi empat dan nak bucunya bulat */
}

/* 3. Efek Hover: Gambar akan membesar sikit ikut bentuk asalnya */
#butangmatematik:hover img {
  transform: scale(1.06) translateY(-3px); /* Membesar 6% dan naik ke atas sikit */
  filter: drop-shadow(0px 10px 12px rgba(0,0,0,0.3)); /* Bayang-bayang di luar gambar */
}

/* 4. Efek bila butang diklik */
#butangmatematik:active img {
  transform: scale(0.95) translateY(2px); /* Mengecil sikit seolah-olah ditekan */
}

/* 1. Jadikan latar belakang butang asal 'hilang' supaya tinggal gambar sahaja */
#butangsains {
  background: transparent;
  border: none;
  padding: 0;
  outline: none;
  cursor: pointer;
}

/* 2. Sediakan animasi untuk gambar */
#butangsains img {
  transition: transform 0.2s ease, filter 0.2s ease;
  border-radius: 20px; /* Letak nilai ini kalau gambar awak segi empat dan nak bucunya bulat */
}

/* 3. Efek Hover: Gambar akan membesar sikit ikut bentuk asalnya */
#butangsains:hover img {
  transform: scale(1.06) translateY(-3px); /* Membesar 6% dan naik ke atas sikit */
  filter: drop-shadow(0px 10px 12px rgba(0,0,0,0.3)); /* Bayang-bayang di luar gambar */
}

/* 4. Efek bila butang diklik */
#butangsains:active img {
  transform: scale(0.95) translateY(2px); /* Mengecil sikit seolah-olah ditekan */
}

/* 1. Jadikan latar belakang butang asal 'hilang' supaya tinggal gambar sahaja */
#butangenglish {
  background: transparent;
  border: none;
  padding: 0;
  outline: none;
  cursor: pointer;
}

/* 2. Sediakan animasi untuk gambar */
#butangenglish img {
  transition: transform 0.2s ease, filter 0.2s ease;
  border-radius: 20px; 
}

/* 3. Efek Hover: Gambar akan membesar sikit ikut bentuk asalnya */
#butangenglish:hover img {
  transform: scale(1.06) translateY(-3px); 
  filter: drop-shadow(0px 10px 12px rgba(0,0,0,0.3)); 
}

/* 4. Efek bila butang diklik */
#butangenglish:active img {
  transform: scale(0.95) translateY(2px); 
}



/* --- KOD UNTUK HILANGKAN LOADING SCREEN --- */
#loading-screen.hilang {
  opacity: 0;
  pointer-events: none; /* Supaya bila dah ghaib, pemain boleh klik butang di belakangnya */
}

/* --- LATAR BELAKANG BINTANG --- */
#home-screen {
  background: radial-gradient(circle at center, #1b4353 0%, #0a1e3f 100%);
}
.bintang-bg {
  position: absolute; width: 100%; height: 100%;
  background-image: radial-gradient(white 1px, transparent 1px);
  background-size: 50px 50px; opacity: 0.3;
}

/* --- ANIMASI ANGKASA --- */
.anim-bumi { animation: pusingBumi 60s linear infinite; }
@keyframes pusingBumi { 100% { transform: translateX(-50%) rotate(360deg); } }

.anim-bulan { animation: pusingBulan 20s linear infinite; }
@keyframes pusingBulan {
  0% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(15deg); }
  100% { transform: translateY(0) rotate(0deg); }
}

.anim-jet { animation: terbangJet 12s ease-in-out infinite; }
@keyframes terbangJet {
  0% { right: -100px; transform: translateY(0) rotate(-10deg); }
  50% { transform: translateY(-50px) rotate(-10deg); }
  100% { right: 110vw; transform: translateY(0) rotate(-10deg); }
}

/* --- ANIMASI KUMPULAN AWAN --- */
.anim-awan-1 { animation: gerakKanan 15s ease-in-out infinite; }
.anim-awan-2 { animation: gerakKiri 12s ease-in-out infinite; }
.anim-awan-3 { animation: gerakKanan 18s ease-in-out infinite; }
.anim-awan-4 { animation: gerakKiri 20s ease-in-out infinite; }
.anim-awan-5 { animation: gerakKanan 14s ease-in-out infinite; }

/* Awan yang bergerak ke Kanan (Ayunan Pendek) */
@keyframes gerakKanan {
  0% { transform: translateX(0px); }
  50% { transform: translateX(40px); } /* Dikurangkan supaya tak keluar dari bumi */
  100% { transform: translateX(0px); }
}

/* Awan yang bergerak ke Kiri (Ayunan Pendek) */
@keyframes gerakKiri {
  0% { transform: translateX(0px); }
  50% { transform: translateX(-40px); } /* Dikurangkan supaya tak keluar dari bumi */
  100% { transform: translateX(0px); }
}


/* Butang Bawah */
.nav-btn {
  display: flex; flex-direction: column; justify-content: center;
  background: #fff; border-radius: 20px; padding: 10px 20px;
  border-bottom: 5px solid #ccc;
  transition: transform 0.1s;
}
.nav-btn:active { transform: translateY(4px); border-bottom-width: 0px; }
.nav-btn p { font-size: 10px; font-weight: bold; margin-top: 5px; color: #333; }

/* --- BUTANG AUDIO TERAPUNG --- */
#btn-audio {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999; /* Pastikan ia sentiasa di depan sekali */
  background-color: #FF9800; /* Warna Oren */
  border: 4px solid #fff;
  border-bottom: 8px solid #E65100; /* Efek 3D */
  border-radius: 50%; /* Jadikan ia bulat penuh */
  width: 65px;
  height: 65px;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.1s ease;
  box-shadow: 0 5px 15px rgba(0,0,0,0.4);
}

/* Efek bila butang ditekan */
#btn-audio:active {
  transform: translateY(4px);
  border-bottom-width: 4px; /* Butang nampak terbenam ke bawah */
}

/* ========================================== */
/* KECERIAAN KOTAK SOALAN & JAWAPAN */
/* ========================================== */

/* 1. Kotak Soalan Utama (Lebih bulat, tebal & 3D) */
#question-card {
  background: linear-gradient(180deg, #ffffff 0%, #f0f7ff 100%);
  border: 6px solid #fff;
  border-radius: 40px; /* Bucu sangat bulat */
  box-shadow: 0 15px 0 #baddff, 0 20px 30px rgba(0,0,0,0.2); /* Efek bayang 3D tebal */
  padding: 3rem 2rem;
}

/* 2. Tajuk Soalan (Warna menonjol) */
#question-prompt {
  color: #1e3a8a;
  text-shadow: 0 3px 0 #baddff; /* Efek huruf timbul */
  line-height: 1.4;
}

/* 3. Butang Pilihan Jawapan A,B,C (Montel & Anjal) */
.answer-btn {
  min-height: 100px;
  border: 6px solid #fff;
  border-radius: 30px;
  font-size: clamp(1.8rem, 5vw, 3rem); /* Huruf sangat besar dan jelas */
  font-weight: 900;
  color: #1e3a8a;
  box-shadow: 0 10px 0 rgba(0,0,0,0.15); /* Ketebalan butang */
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275); /* Pergerakan spring */
}

/* Efek bila 'mouse' di atas butang jawapan */
.answer-btn:hover {
  transform: translateY(-6px) scale(1.05); /* Melompat naik sikit */
  filter: brightness(1.1); /* Warna jadi lebih terang */
}

/* Efek bila butang jawapan ditekan */
.answer-btn:active {
  transform: translateY(10px) scale(0.95); /* Terbenam ke bawah */
  box-shadow: 0 0 0 rgba(0,0,0,0); /* Bayang hilang bila terbenam */
  border-bottom-width: 6px;
}


.toggle-password {
  position: absolute;
  right: 10px;
  cursor: pointer;
  user-select: none;
  font-size: 1.2rem;
}

.about-section {
  background-color: #f9f9f9;
  border-radius: 10px;
  padding: 20px;
  margin: 20px auto;
  max-width: 600px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  font-family: 'Arial', sans-serif;
  color: #333;
}

.about-section h2 {
  text-align: center;
  color: #2c3e50;
  border-bottom: 2px solid #3498db;
  padding-bottom: 10px;
}

.about-content p, .contact-box p {
  line-height: 1.6;
  font-size: 1rem;
}

.contact-box {
  background-color: #e8f4f8;
  padding: 15px;
  border-radius: 8px;
  margin-top: 20px;
}

.contact-box ul {
  list-style-type: none;
  padding: 0;
}

.contact-box ul li {
  margin-bottom: 10px;
  font-size: 0.95rem;
}