/* ========== RESET & BASE ========== */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0f0f23;--card:#1a1a3e;--accent:#ff6b6b;--accent2:#4ecdc4;
  --accent3:#ffe66d;--accent4:#a78bfa;--text:#e8e8f0;--text2:#b0b0c8;
  --radius:16px;--shadow:0 8px 32px rgba(0,0,0,.4);
}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);
  min-height:100vh;overflow-x:hidden;
  background:linear-gradient(135deg,#0f0f23 0%,#1a1040 50%,#0f0f23 100%);
}

/* ========== PROGRESS BAR ========== */
.progress-bar{position:fixed;top:0;left:0;width:100%;height:5px;background:rgba(255,255,255,.08);z-index:100}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2),var(--accent3));width:6.67%;transition:width .5s cubic-bezier(.4,0,.2,1);border-radius:0 3px 3px 0}

/* ========== NAV ========== */
.nav-arrows{position:fixed;bottom:0;left:0;width:100%;display:flex;justify-content:space-between;align-items:center;padding:12px 24px;background:rgba(15,15,35,.92);backdrop-filter:blur(12px);z-index:100;border-top:1px solid rgba(255,255,255,.06)}
.nav-btn{background:var(--card);color:var(--text);border:1px solid rgba(255,255,255,.1);padding:10px 24px;border-radius:12px;cursor:pointer;font-size:15px;transition:all .25s}
.nav-btn:hover{background:var(--accent2);color:#000;border-color:var(--accent2)}
.nav-btn:disabled{opacity:.3;cursor:not-allowed}
.page-indicator{color:var(--text2);font-size:14px;font-weight:600}

/* ========== PAGES ========== */
.page{display:none;min-height:100vh;padding:60px 24px 100px;animation:fadeSlideIn .5s ease}
.page.active{display:flex;justify-content:center}
.page-content{max-width:900px;width:100%;margin:0 auto}
.page-content.centered{text-align:center}
.page-content.centered .checklist,.page-content.centered .subtitle{display:inline-block;text-align:left}

@keyframes fadeSlideIn{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

/* ========== TYPOGRAPHY ========== */
h1{font-size:clamp(28px,5vw,48px);margin-bottom:20px;line-height:1.2}
.mega-title{font-size:clamp(36px,7vw,64px);background:linear-gradient(135deg,var(--accent),var(--accent3),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:glow 3s ease-in-out infinite alternate}
@keyframes glow{from{filter:drop-shadow(0 0 8px rgba(255,107,107,.4))}to{filter:drop-shadow(0 0 20px rgba(78,205,196,.6))}}
.subtitle{font-size:20px;color:var(--text2);margin-bottom:24px}
.definition{font-size:18px;margin:20px 0;padding:20px;background:var(--card);border-radius:var(--radius);border-left:4px solid var(--accent2);line-height:1.7}

/* ========== CHECKLIST ========== */
.checklist{list-style:none;font-size:20px;line-height:2}
.checklist li{padding:4px 0}

/* ========== TASK BOX ========== */
.task-box{margin-top:32px;padding:24px;background:linear-gradient(135deg,rgba(78,205,196,.12),rgba(167,139,250,.12));border:1px solid rgba(78,205,196,.2);border-radius:var(--radius);text-align:left}
.task-box h3{font-size:20px;margin-bottom:12px;color:var(--accent2)}
.task-box p{font-size:16px;margin:4px 0;line-height:1.6}
.example{color:var(--text2);font-style:italic;margin-top:8px!important}

/* ========== VOCAB ========== */
.vocab-box{margin-top:24px;padding:20px;background:var(--card);border-radius:var(--radius)}
.vocab-box h3{margin-bottom:12px}
.vocab-grid,.word-options{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.vocab-tag{background:rgba(255,107,107,.15);color:var(--accent);padding:6px 16px;border-radius:20px;font-size:15px;font-weight:600;border:1px solid rgba(255,107,107,.25);transition:all .3s}
.vocab-tag:hover{background:var(--accent);color:#000;transform:scale(1.08)}
.option-tag{background:rgba(78,205,196,.15);color:var(--accent2);padding:6px 16px;border-radius:20px;font-size:15px;font-weight:600;border:1px solid rgba(78,205,196,.25)}

/* ========== MEME GALLERY ========== */
.meme-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin:24px 0}
.meme-card{background:var(--card);border-radius:var(--radius);overflow:hidden;border:2px solid rgba(255,255,255,.06);transition:transform .3s,box-shadow .3s;cursor:pointer}
.meme-card:hover{transform:translateY(-6px) rotate(-1deg);box-shadow:var(--shadow)}
.meme-img{font-size:80px;text-align:center;padding:40px 20px 20px;background:linear-gradient(135deg,rgba(255,230,109,.08),rgba(255,107,107,.08))}
.meme-caption{padding:16px;text-align:center;font-weight:600;font-size:14px;color:var(--text2);border-top:1px solid rgba(255,255,255,.06)}

/* ========== EMOTIONS GRID ========== */
.emotions-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:14px;margin:24px 0}
.emotion-card{background:var(--card);border-radius:var(--radius);padding:20px 12px;text-align:center;border:2px solid transparent;transition:all .3s;cursor:pointer}
.emotion-card:hover{border-color:var(--accent3);transform:scale(1.06);background:rgba(255,230,109,.08)}
.emotion-card .emoji{font-size:44px;display:block;margin-bottom:8px}
.emotion-card .word{font-size:14px;font-weight:700;color:var(--accent3);text-transform:uppercase;letter-spacing:.5px}

.demo-emoji{font-size:80px;margin:20px 0;animation:pulse 1.5s infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.15)}}

.answer-reveal{font-size:28px;font-weight:700;color:var(--accent2);min-height:40px;margin-top:8px;transition:opacity .3s}

/* ========== GUESS GRID ========== */
.guess-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin:24px 0}
.guess-card{background:var(--card);border-radius:var(--radius);padding:24px;text-align:center;border:2px solid rgba(255,255,255,.06);transition:all .3s}
.guess-card .animal{font-size:64px;margin-bottom:8px}
.guess-card .scene{font-size:14px;color:var(--text2);margin-bottom:8px}
.guess-card .answer{font-size:18px;font-weight:700;color:var(--accent2);opacity:0;transition:opacity .3s}
.guess-card.revealed .answer{opacity:1}
.guess-card.revealed{border-color:var(--accent2)}

/* ========== VOCAB SHOWCASE ========== */
.vocab-showcase{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px;margin:24px 0}
.vocab-card{background:var(--card);border-radius:14px;padding:20px 12px;text-align:center;border:1px solid rgba(255,255,255,.06);transition:all .3s;cursor:pointer;position:relative;overflow:hidden}
.vocab-card:hover{transform:translateY(-4px);border-color:var(--accent4)}
.vocab-card .vc-icon{font-size:36px;margin-bottom:8px}
.vocab-card .vc-word{font-size:15px;font-weight:700;color:var(--accent4)}
.vocab-card .vc-ru{font-size:12px;color:var(--text2);margin-top:4px;opacity:0;transition:opacity .3s}
.vocab-card:hover .vc-ru{opacity:1}

.random-word-display{margin-top:16px;padding:20px;background:var(--card);border-radius:var(--radius);text-align:center;min-height:80px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.random-word-display .rw-ru{font-size:24px;color:var(--accent3);font-weight:700}
.random-word-display .rw-en{font-size:32px;color:var(--accent2);font-weight:800;margin-top:8px;opacity:0;transition:opacity .4s}
.random-word-display .rw-en.show{opacity:1}

/* ========== PHRASES GRID ========== */
.phrases-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;margin:24px 0}
.phrase-card{background:var(--card);border-radius:var(--radius);padding:20px;text-align:center;border:2px solid rgba(255,255,255,.06);transition:all .3s;cursor:pointer}
.phrase-card:hover{border-color:var(--accent);transform:translateY(-4px)}
.phrase-card .ph-text{font-size:18px;font-weight:800;color:var(--accent)}
.phrase-card .ph-emoji{font-size:40px;margin-bottom:10px}
.phrase-card .ph-ru{font-size:13px;color:var(--text2);margin-top:8px}

/* ========== QUIZ ========== */
.quiz-container{margin:24px 0}
.quiz-card{display:none;flex-direction:column;align-items:center;gap:20px}
.quiz-card.active{display:flex}
.quiz-emoji{font-size:100px;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.quiz-options{display:flex;flex-direction:column;gap:12px;width:100%;max-width:400px}
.quiz-option{padding:16px 24px;background:var(--card);border:2px solid rgba(255,255,255,.1);border-radius:14px;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);transition:all .25s;text-align:left}
.quiz-option:hover{border-color:var(--accent2);background:rgba(78,205,196,.08)}
.quiz-option.correct{border-color:#4ade80;background:rgba(74,222,128,.15);color:#4ade80}
.quiz-option.wrong{border-color:var(--accent);background:rgba(255,107,107,.1);color:var(--accent)}
.quiz-nav{display:flex;justify-content:center;align-items:center;gap:20px;margin-top:16px}
.quiz-counter{color:var(--text2);font-weight:600}

/* ========== SENTENCE STARTERS ========== */
.sentence-starters{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin:24px 0}
.sentence-card{background:var(--card);border-radius:var(--radius);padding:24px;text-align:center;border:2px solid rgba(255,230,109,.15);transition:all .3s}
.sentence-card:hover{border-color:var(--accent3);transform:translateY(-3px)}
.sentence-card .s-phrase{font-size:20px;font-weight:800;color:var(--accent3)}
.sentence-card .s-hint{font-size:14px;color:var(--text2);margin-top:8px}

/* ========== SITUATIONS ========== */
.situations-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:24px 0}
.situation-card{background:var(--card);border-radius:var(--radius);padding:20px;text-align:left;border:2px solid rgba(255,255,255,.06);cursor:pointer;transition:all .3s}
.situation-card:hover{border-color:var(--accent2)}
.situation-card.selected{border-color:var(--accent2);background:rgba(78,205,196,.08)}
.situation-card .sit-text{font-size:16px;font-weight:600;margin-bottom:6px}
.situation-card .sit-ru{font-size:13px;color:var(--text2)}
.situation-card .sit-answer{margin-top:10px;font-size:15px;font-weight:700;color:var(--accent2);opacity:0;transition:opacity .3s}
.situation-card.selected .sit-answer{opacity:1}

.emotion-palette{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0;justify-content:center}
.emotion-chip{padding:10px 20px;background:var(--card);border:2px solid rgba(255,255,255,.1);border-radius:30px;cursor:pointer;font-size:15px;font-weight:600;color:var(--text);transition:all .25s}
.emotion-chip:hover,.emotion-chip.active{border-color:var(--accent3);background:rgba(255,230,109,.12);color:var(--accent3)}

/* ========== BUILD FLOW ========== */
.build-flow{display:flex;flex-direction:column;align-items:center;gap:8px;margin:40px 0}
.flow-step{background:var(--card);border-radius:var(--radius);padding:24px 40px;text-align:center;border:2px solid rgba(255,255,255,.08);transition:all .4s}
.flow-step.highlight{border-color:var(--accent3);background:rgba(255,230,109,.08);animation:pulse 2s infinite}
.flow-step.final{border-color:var(--accent2);background:rgba(78,205,196,.12);transform:scale(1.1)}
.step-icon{font-size:48px}
.step-label{font-size:18px;font-weight:700;margin-top:8px}
.flow-arrow{font-size:28px;color:var(--text2);animation:float 1.5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

/* ========== PRACTICE GRID ========== */
.practice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin:24px 0}
.practice-card{background:var(--card);border-radius:var(--radius);padding:24px;text-align:center;border:2px solid rgba(255,255,255,.06);transition:all .3s}
.practice-card:hover{border-color:var(--accent2)}
.practice-card .pr-emoji{font-size:72px;margin-bottom:12px}
.practice-card input{width:100%;padding:10px 14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:10px;color:var(--text);font-size:15px;margin-top:8px}
.practice-card input:focus{outline:none;border-color:var(--accent2)}
.practice-card input::placeholder{color:var(--text2);opacity:.6}

/* ========== MEME EDITOR ========== */
.instructions-box{background:var(--card);border-radius:var(--radius);padding:24px;margin-bottom:24px;border:1px solid rgba(255,255,255,.06)}
.instructions-box h3{color:var(--accent3);margin-bottom:12px}
.instructions-box ol{padding-left:24px;font-size:16px;line-height:2}

.meme-editor{display:grid;grid-template-columns:280px 1fr;gap:24px;margin-top:20px}
@media(max-width:700px){.meme-editor{grid-template-columns:1fr}}

.editor-sidebar{background:var(--card);border-radius:var(--radius);padding:20px;border:1px solid rgba(255,255,255,.06)}
.editor-sidebar h3{margin-bottom:14px}
.upload-btn{display:block;padding:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#000;font-weight:700;text-align:center;border-radius:12px;cursor:pointer;font-size:15px;transition:transform .2s}
.upload-btn:hover{transform:scale(1.04)}
.editor-controls{margin-top:16px}
.editor-controls label{display:block;font-size:13px;color:var(--text2);margin-top:10px;margin-bottom:4px}
.editor-controls input[type="text"]{width:100%;padding:10px 12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:10px;color:var(--text);font-size:14px}
.editor-controls input[type="text"]:focus{outline:none;border-color:var(--accent2)}
.editor-controls input[type="range"]{width:100%;accent-color:var(--accent2)}

.editor-canvas-wrap{position:relative;background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;min-height:400px}
#memeCanvas{display:block;max-width:100%}
.canvas-placeholder{position:absolute;text-align:center;font-size:20px;color:var(--text2);opacity:.6;pointer-events:none;line-height:2}

/* ========== SPEECH TEMPLATE ========== */
.speech-template{background:var(--card);border-radius:var(--radius);padding:32px;margin:24px auto;max-width:500px;border:2px solid rgba(255,230,109,.2);text-align:left}
.speech-template p{font-size:18px;line-height:2}

/* ========== REACTIONS ========== */
.reaction-box{margin-top:32px}
.reaction-box h3{margin-bottom:14px;color:var(--accent2)}
.reactions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.reaction-btn{padding:12px 24px;background:var(--card);border:2px solid rgba(255,255,255,.08);border-radius:30px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;transition:all .25s}
.reaction-btn:hover{transform:scale(1.1);border-color:var(--accent3);background:rgba(255,230,109,.1)}

/* ========== CONGRATS ========== */
.congrats-list{margin:32px auto;max-width:600px}
.congrats-item{padding:14px 20px;margin:10px 0;background:var(--card);border-radius:14px;font-size:18px;border:1px solid rgba(255,255,255,.06);animation:slideIn .5s ease backwards}
.congrats-item:nth-child(1){animation-delay:.1s}
.congrats-item:nth-child(2){animation-delay:.2s}
.congrats-item:nth-child(3){animation-delay:.3s}
.congrats-item:nth-child(4){animation-delay:.4s}
.congrats-item:nth-child(5){animation-delay:.5s}
@keyframes slideIn{from{opacity:0;transform:translateX(-30px)}to{opacity:1;transform:translateX(0)}}

.trophy{font-size:clamp(32px,6vw,56px);margin-top:32px;animation:bounce 1s infinite;color:var(--accent3)}
#confettiCanvas{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:200}

/* ========== FUN BUTTON ========== */
.fun-btn{padding:12px 28px;background:linear-gradient(135deg,var(--accent2),var(--accent4));color:#000;font-weight:700;border:none;border-radius:12px;cursor:pointer;font-size:15px;transition:all .25s}
.fun-btn:hover{transform:scale(1.06);box-shadow:0 4px 20px rgba(78,205,196,.3)}
.fun-btn.secondary{background:linear-gradient(135deg,var(--accent),var(--accent3))}

/* ========== BOUNCE ANIMATION ========== */
.bounce-in{animation:bounceIn .8s cubic-bezier(.68,-.55,.265,1.55)}
@keyframes bounceIn{from{opacity:0;transform:scale(.3)}to{opacity:1;transform:scale(1)}}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--card);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--accent4)}

/* ========== RESPONSIVE ========== */
@media(max-width:600px){
  .nav-arrows{padding:10px 16px}
  .nav-btn{padding:8px 16px;font-size:13px}
  .page{padding:60px 16px 100px}
  .meme-gallery,.guess-grid,.phrases-grid,.practice-grid{grid-template-columns:1fr}
  .emotions-grid{grid-template-columns:repeat(3,1fr)}
  .vocab-showcase{grid-template-columns:repeat(3,1fr)}
  .meme-editor{grid-template-columns:1fr}
}