/* ============================================================
   AVENTURAT E PEPPËS — Libër Interaktiv për Fëmijë
   style.css — Sistemi i dizajnit dhe animacionet
   ============================================================ */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@500;600;700;800&family=Nunito:wght@400;600;700;800&display=swap');

/* ---------- Token System (Ngjyrat & Madhësitë) ---------- */
:root{
  /* Palette — e ngrohtë, e butë, gazmore */
  --sky:        #BFE8F7;
  --sky-deep:   #8FD3EE;
  --grass:      #CFF0BE;
  --grass-deep: #A6DE8C;
  --sun:        #FFDE7A;
  --sun-deep:   #FFC94D;
  --peppa-pink: #FF9EB5;
  --peppa-deep: #FF6F91;
  --mud:        #D8B48B;
  --cream:      #FFF8EC;
  --ink:        #4A3B36;
  --ink-soft:   #7A6A63;
  --white:      #FFFFFF;
  --shadow:     rgba(74, 59, 54, 0.18);

  /* Radius & Space */
  --r-lg: 32px;
  --r-md: 22px;
  --r-sm: 14px;
  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 36px;
  --sp-5: 56px;

  /* Type */
  --font-display: 'Baloo 2', system-ui, sans-serif;
  --font-body: 'Nunito', system-ui, sans-serif;
}

*{ box-sizing: border-box; }

html, body{
  margin:0;
  padding:0;
  height:100%;
  font-family: var(--font-body);
  color: var(--ink);
  -webkit-tap-highlight-color: transparent;
}

body{
  min-height:100vh;
  background: linear-gradient(180deg, var(--sky) 0%, var(--sky) 35%, var(--cream) 35%, var(--cream) 100%);
  overflow-x:hidden;
  transition: background 0.8s ease;
  position:relative;
}

button{
  font-family: var(--font-display);
  cursor:pointer;
  border:none;
  outline:none;
}
button:focus-visible, a:focus-visible{
  outline: 4px solid #4A90D9;
  outline-offset: 3px;
}

h1,h2,h3{ font-family: var(--font-display); margin:0; }
p{ margin:0; }

img{ max-width:100%; display:block; }

/* ---------- Sfondi animuar (re, diell, gjethe) ---------- */
.bg-scene{
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  overflow:hidden;
}

.sun{
  position:absolute;
  top: 6%;
  right: 8%;
  width: 90px;
  height: 90px;
  border-radius:50%;
  background: radial-gradient(circle at 35% 35%, #FFF3C4, var(--sun-deep));
  box-shadow: 0 0 40px 10px rgba(255, 201, 77, 0.55);
  animation: sun-pulse 4s ease-in-out infinite;
}
@keyframes sun-pulse{
  0%,100%{ transform: scale(1); }
  50%{ transform: scale(1.08); }
}

.cloud{
  position:absolute;
  background: var(--white);
  border-radius: 50px;
  opacity:0.9;
  filter: drop-shadow(0 6px 4px rgba(0,0,0,0.05));
}
.cloud::before, .cloud::after{
  content:"";
  position:absolute;
  background: var(--white);
  border-radius:50%;
}
.cloud-a{ width:90px; height:34px; top:12%; left:-120px; animation: drift 34s linear infinite; }
.cloud-a::before{ width:50px; height:50px; top:-24px; left:10px; }
.cloud-a::after{ width:38px; height:38px; top:-16px; left:50px; }
.cloud-b{ width:60px; height:24px; top:20%; left:-100px; animation: drift 26s linear infinite; animation-delay: -10s; }
.cloud-b::before{ width:34px; height:34px; top:-16px; left:6px; }
.cloud-b::after{ width:26px; height:26px; top:-10px; left:32px; }
.cloud-c{ width:75px; height:28px; top:8%; left:-110px; animation: drift 40s linear infinite; animation-delay:-22s; }
.cloud-c::before{ width:42px; height:42px; top:-20px; left:8px; }
.cloud-c::after{ width:30px; height:30px; top:-12px; left:40px; }

@keyframes drift{
  from{ transform: translateX(0); }
  to{ transform: translateX(calc(100vw + 200px)); }
}

.leaf{
  position:absolute;
  top:-40px;
  font-size: 22px;
  animation: fall linear infinite;
  opacity:0.85;
}
@keyframes fall{
  0%{ transform: translateY(0) rotate(0deg); opacity:0.9; }
  100%{ transform: translateY(110vh) rotate(340deg); opacity:0.6; }
}

/* Temat sipas historisë (ndryshojnë ngjyrat e sfondit) */
body[data-theme="rain"]{ background: linear-gradient(180deg, #C9D6E3 0%, #C9D6E3 35%, var(--cream) 35%, var(--cream) 100%); }
body[data-theme="night"]{ background: linear-gradient(180deg, #4B5C86 0%, #4B5C86 35%, var(--cream) 35%, var(--cream) 100%); }
body[data-theme="farm"]{ background: linear-gradient(180deg, var(--grass) 0%, var(--grass) 35%, var(--cream) 35%, var(--cream) 100%); }
body[data-theme="party"]{ background: linear-gradient(180deg, #FFD6E7 0%, #FFD6E7 35%, var(--cream) 35%, var(--cream) 100%); }

/* ---------- Layout i përgjithshëm ---------- */
.app{
  position:relative;
  z-index:1;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  padding: var(--sp-3);
}

.screen{
  width:100%;
  max-width: 780px;
  display:none;
  flex-direction:column;
  align-items:center;
  animation: rise-in 0.5s ease;
}
.screen.active{ display:flex; }

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

/* ---------- Faqja Cover ---------- */
.cover-card{
  background: var(--white);
  border-radius: var(--r-lg);
  box-shadow: 0 18px 40px var(--shadow);
  padding: var(--sp-5) var(--sp-4);
  text-align:center;
  width:100%;
  margin-top: var(--sp-4);
  position:relative;
  overflow:hidden;
}

.cover-title{
  font-size: clamp(2.4rem, 7vw, 3.6rem);
  color: var(--peppa-deep);
  text-shadow: 3px 3px 0 var(--sun);
  line-height:1.1;
}

.cover-sub{
  margin-top: var(--sp-2);
  font-size: 1.2rem;
  color: var(--ink-soft);
  font-weight:700;
}

.cover-mascot{
  width: 190px;
  margin: var(--sp-3) auto;
  animation: bob 3s ease-in-out infinite;
}
@keyframes bob{
  0%,100%{ transform: translateY(0) rotate(-2deg); }
  50%{ transform: translateY(-14px) rotate(2deg); }
}

.big-btn{
  font-size: 1.5rem;
  font-weight:700;
  color: var(--white);
  background: linear-gradient(180deg, var(--peppa-pink), var(--peppa-deep));
  padding: 20px 44px;
  border-radius: 100px;
  box-shadow: 0 8px 0 #E0567A, 0 14px 24px var(--shadow);
  margin-top: var(--sp-3);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.big-btn:hover{ transform: translateY(-2px); }
.big-btn:active{
  transform: translateY(6px);
  box-shadow: 0 2px 0 #E0567A, 0 6px 12px var(--shadow);
}

.cover-nav{
  display:flex;
  flex-wrap:wrap;
  gap: var(--sp-2);
  justify-content:center;
  margin-top: var(--sp-4);
}

.pill-btn{
  font-family: var(--font-body);
  font-weight:800;
  font-size: 1rem;
  color: var(--ink);
  background: var(--sun);
  padding: 14px 24px;
  border-radius: 100px;
  box-shadow: 0 5px 0 var(--sun-deep);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.pill-btn:hover{ transform: translateY(-2px); }
.pill-btn:active{ transform: translateY(4px); box-shadow: 0 1px 0 var(--sun-deep); }
.pill-btn.alt{ background: var(--grass); box-shadow: 0 5px 0 var(--grass-deep); }
.pill-btn.alt2{ background: var(--sky); box-shadow: 0 5px 0 var(--sky-deep); }

/* ---------- Faqja e Librit (story page) — Header ngjitës (sticky) ---------- */
.book-header{
  position: sticky;
  top: 0;
  z-index: 30;
  width:100%;
  background: var(--cream);
  padding: 10px 6px 12px;
  border-radius: 0 0 var(--r-md) var(--r-md);
  box-shadow: 0 8px 18px rgba(74,59,54,0.12);
  margin-bottom: var(--sp-2);
}

.topbar-row{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: var(--sp-1);
  margin-bottom: 10px;
}

.topbar-left{
  display:flex;
  align-items:center;
  gap: var(--sp-1);
  flex-shrink:0;
}

.audio-controls-icons{
  display:flex;
  align-items:center;
  gap: 6px;
  flex-wrap:nowrap;
}

.progress-wrap{
  width:100%;
  height: 14px;
  background: rgba(255,255,255,0.85);
  border-radius: 100px;
  overflow:hidden;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}
.progress-fill{
  height:100%;
  background: linear-gradient(90deg, var(--peppa-pink), var(--sun-deep));
  border-radius:100px;
  transition: width 0.4s ease;
}

.page-count{
  font-family: var(--font-display);
  font-weight:700;
  background: var(--white);
  padding: 6px 16px;
  border-radius: 100px;
  box-shadow: 0 3px 0 rgba(0,0,0,0.08);
  white-space:nowrap;
}

.mini-nav{
  display:flex;
  gap: 8px;
  flex-shrink:0;
}
.mini-nav-btn{
  width:40px; height:40px;
  border-radius:50%;
  background: linear-gradient(180deg, var(--peppa-pink), var(--peppa-deep));
  color: var(--white);
  font-size:1.15rem;
  font-weight:800;
  box-shadow: 0 4px 0 #E0567A;
  display:flex; align-items:center; justify-content:center;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.mini-nav-btn:hover{ transform: translateY(-2px); }
.mini-nav-btn:active{ transform: translateY(3px); box-shadow: 0 1px 0 #E0567A; }
.mini-nav-btn[disabled]{
  opacity:0.35;
  cursor:not-allowed;
  transform:none !important;
  box-shadow: 0 4px 0 rgba(0,0,0,0.08) !important;
  background: #D8D3CC;
}

.home-btn{
  width:40px; height:40px;
  border-radius:50%;
  background: var(--white);
  font-size:1.2rem;
  box-shadow: 0 3px 0 rgba(0,0,0,0.08);
  display:flex; align-items:center; justify-content:center;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  flex-shrink:0;
}
.home-btn:hover{ transform: translateY(-2px); }
.home-btn:active{ transform: translateY(3px); box-shadow: 0 1px 0 rgba(0,0,0,0.08); }
.home-btn[disabled]{
  opacity:0.35;
  cursor:not-allowed;
  transform:none !important;
  box-shadow: 0 3px 0 rgba(0,0,0,0.05) !important;
}

/* Butonat e audios — të njëjtin stil rrethor si Audio On/Off,
   me ngjyrë të lehtë rozë kur janë aktivë për t'u dalluar pak. */
.audio-icon-btn{
  background: var(--white);
}
.audio-icon-btn:not([disabled]){
  background: linear-gradient(180deg, #FFE3EC, var(--white));
}

.story-card{
  background: var(--white);
  border-radius: var(--r-lg);
  box-shadow: 0 18px 40px var(--shadow);
  padding: var(--sp-3);
  width:100%;
  position:relative;
}

.illustration-frame{
  width:100%;
  aspect-ratio: 4/3;
  border-radius: var(--r-md);
  overflow:hidden;
  background: linear-gradient(160deg, var(--grass), var(--sky));
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
}
.illustration-frame img{
  width:100%; height:100%; object-fit:contain;
  animation: illo-in 0.6s ease;
}
@keyframes illo-in{
  from{ opacity:0; transform: scale(0.94); }
  to{ opacity:1; transform: scale(1); }
}

.story-title{
  font-size: clamp(1.5rem, 5vw, 2.1rem);
  color: var(--peppa-deep);
  margin-top: var(--sp-3);
  text-align:center;
}

.story-text{
  font-size: clamp(1.05rem, 3.2vw, 1.25rem);
  line-height:1.7;
  font-weight:700;
  color: var(--ink);
  text-align:left;
  margin-top: var(--sp-2);
  padding: 0 var(--sp-1);
  max-height: 46vh;
  overflow-y: auto;
  scrollbar-width: thin;
}
.story-text p{
  margin: 0 0 1em 0;
}
.story-text p:last-child{ margin-bottom:0; }
.story-text::-webkit-scrollbar{ width:8px; }
.story-text::-webkit-scrollbar-thumb{ background: var(--sun-deep); border-radius:8px; }

/* Ndriçimi rreth ilustrimit ndërsa po luhet zëri — sinjali kryesor
   që sinkronizon vizualisht audio-n me atë çka shikon fëmija. */
.illustration-frame.narrating{
  box-shadow: 0 0 0 5px var(--peppa-pink), 0 0 26px 6px rgba(255, 158, 181, 0.55);
  animation: narrating-pulse 1.3s ease-in-out infinite;
}
@keyframes narrating-pulse{
  0%,100%{ box-shadow: 0 0 0 5px var(--peppa-pink), 0 0 26px 6px rgba(255, 158, 181, 0.45); }
  50%{ box-shadow: 0 0 0 8px var(--peppa-pink), 0 0 34px 10px rgba(255, 158, 181, 0.65); }
}

.lesson-badge{
  margin-top: var(--sp-3);
  background: var(--grass);
  border-radius: var(--r-sm);
  padding: var(--sp-2);
  font-weight:700;
  text-align:center;
  color:#3E6B2C;
  display:flex;
  align-items:center;
  gap:10px;
  justify-content:center;
}

/* ---------- Statusi i audios (p.sh. regjistrim mungues) ---------- */
.voice-fallback{
  margin-top: var(--sp-1);
  font-size: 0.9rem;
  color: var(--ink-soft);
  text-align:center;
  font-weight:700;
}

/* ---------- Page turn transition ---------- */
.turning-next .story-card{ animation: turn-next 0.5s ease; }
.turning-prev .story-card{ animation: turn-prev 0.5s ease; }
@keyframes turn-next{
  0%{ transform: rotateY(0deg); opacity:1; }
  45%{ transform: rotateY(-10deg); opacity:0.5; }
  55%{ transform: rotateY(10deg); opacity:0.5; }
  100%{ transform: rotateY(0deg); opacity:1; }
}
@keyframes turn-prev{
  0%{ transform: rotateY(0deg); opacity:1; }
  45%{ transform: rotateY(10deg); opacity:0.5; }
  55%{ transform: rotateY(-10deg); opacity:0.5; }
  100%{ transform: rotateY(0deg); opacity:1; }
}

/* ---------- Faqja fundit (celebrimi) ---------- */
.end-card{
  background: var(--white);
  border-radius: var(--r-lg);
  box-shadow: 0 18px 40px var(--shadow);
  padding: var(--sp-5) var(--sp-4);
  text-align:center;
  width:100%;
}
.end-emoji{ font-size:4rem; animation: bob 2s ease-in-out infinite; }
.end-title{ font-size: clamp(1.8rem,6vw,2.6rem); color:var(--peppa-deep); margin-top:var(--sp-2); }

/* ---------- Modal: Zgjidh një tregim ---------- */
.modal-overlay{
  position:fixed; inset:0;
  background: rgba(74,59,54,0.55);
  display:none;
  align-items:center; justify-content:center;
  z-index:50;
  padding: var(--sp-2);
}
.modal-overlay.active{ display:flex; }

.modal-box{
  background: var(--cream);
  border-radius: var(--r-lg);
  padding: var(--sp-3);
  width:100%;
  max-width: 640px;
  max-height: 82vh;
  overflow-y:auto;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}
.modal-title{
  font-size:1.6rem;
  color:var(--peppa-deep);
  text-align:center;
  margin-bottom: var(--sp-2);
}
.story-grid{
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(130px,1fr));
  gap: var(--sp-2);
}
.story-thumb{
  background: var(--white);
  border-radius: var(--r-sm);
  padding: var(--sp-1);
  text-align:center;
  box-shadow: 0 4px 0 rgba(0,0,0,0.08);
  transition: transform 0.12s ease;
}
.story-thumb:hover{ transform: translateY(-3px); }
.story-thumb img{ border-radius:10px; aspect-ratio:1; object-fit:cover; width:100%; }
.story-thumb .thumb-num{
  font-family: var(--font-display);
  font-weight:700;
  font-size:0.85rem;
  margin-top:6px;
  color: var(--ink-soft);
}
.close-modal{
  display:block;
  margin: var(--sp-2) auto 0;
  background: var(--peppa-pink);
  color:var(--white);
  padding: 12px 30px;
  border-radius:100px;
  font-weight:800;
  box-shadow: 0 5px 0 var(--peppa-deep);
}

/* ---------- Konfeti ---------- */
.confetti-piece{
  position:fixed;
  top:-20px;
  width:10px; height:14px;
  z-index:60;
  pointer-events:none;
  animation: confetti-fall linear forwards;
}
@keyframes confetti-fall{
  to{ transform: translateY(105vh) rotate(600deg); opacity:0.9; }
}

/* ---------- Toggle Muzika ---------- */
.music-toggle-btn{
  transition: transform 0.12s ease;
}
.music-toggle-btn:hover{ transform: translateY(-2px); }
.music-toggle-btn:active{ transform: translateY(2px); }
#music-toggle{
  font-size:1.3rem;
}

/* ---------- Responsive ---------- */
@media (max-width:600px){
  .app{ padding: var(--sp-2); }
  .cover-card{ padding: var(--sp-4) var(--sp-2); }
  .story-card{ padding: var(--sp-2); }
  .audio-controls-icons{ gap:4px; }
  .home-btn, .mini-nav-btn{ width:36px; height:36px; font-size:1.05rem; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* Screen reader only */
.sr-only{
  position:absolute; width:1px; height:1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap;
}