:root {
  --primary: #2D3EF5;
  --primary-light: #6B7BFF;
  --primary-dark: #1A2AC0;
  --success: #2ED573;
  --warning: #FFB800;
  --danger: #FF4757;
  --bg: #F8F7FF;
  --card: #FFFFFF;
  --text: #1A1A2E;
  --text-muted: #6B7280;
  --border: #E5E4F0;
  --shadow: 0 4px 24px rgba(45,62,245,0.10);
  --radius: 16px;
  --navy: #1A1A2E;
}
* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
body { font-family: 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; overflow-x: hidden; }
.screen { display: none; min-height: 100vh; padding: 16px; max-width: 680px; margin: 0 auto; }
.screen.active { display: block; }

/* ── HEADER ── */
.app-header { display: flex; align-items: center; justify-content: space-between; padding: 8px 0 16px; }
.app-logo { font-size: 1.4rem; font-weight: 900; color: var(--primary); letter-spacing: -0.5px; }
.app-logo span { color: var(--warning); }
.header-stats { display: flex; gap: 8px; align-items: center; }
.streak-badge { background: linear-gradient(135deg,var(--warning),var(--danger)); color:#fff; border-radius: 20px; padding: 4px 12px; font-size: 0.85rem; font-weight: 700; }
.xp-badge { background: var(--primary); color:#fff; border-radius: 20px; padding: 4px 12px; font-size: 0.85rem; font-weight: 700; }

/* ── CARDS ── */
.card { background: var(--card); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 16px; }
.card-title { font-size: 0.8rem; font-weight: 800; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px; }

/* ── XP BAR ── */
.xp-bar-wrap { background: var(--border); border-radius: 8px; height: 10px; overflow: hidden; margin: 8px 0; }
.xp-bar-fill { background: linear-gradient(90deg, var(--primary), var(--primary-light)); height: 100%; border-radius: 8px; transition: width 0.6s ease; }

/* ── BUTTONS ── */
.btn { display: block; width: 100%; padding: 16px; border: none; border-radius: var(--radius); font-size: 1rem; font-weight: 800; cursor: pointer; transition: all 0.15s; text-align: center; letter-spacing: 0.01em; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(45,62,245,0.35); }
.btn-primary:active { background: var(--primary-dark); transform: scale(0.98); }
.btn-success { background: var(--success); color: var(--navy); box-shadow: 0 4px 16px rgba(46,213,115,0.35); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-gold { background: var(--warning); color: var(--navy); box-shadow: 0 4px 16px rgba(255,184,0,0.35); }
.btn-sm { padding: 10px 20px; width: auto; display: inline-block; font-size: 0.85rem; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-ghost { background: transparent; border: 2px solid var(--border); color: var(--text-muted); font-weight: 600; }

/* ── HERO GRADIENT ── */
.hero-gradient { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); border-radius: var(--radius); padding: 32px 24px; text-align: center; margin-bottom: 24px; color: #fff; position: relative; overflow: hidden; }
.hero-gradient::before { content:''; position:absolute; top:-30px; right:-30px; width:140px; height:140px; background:rgba(255,255,255,0.08); border-radius:50%; }
.hero-gradient::after { content:''; position:absolute; bottom:-40px; left:-20px; width:100px; height:100px; background:rgba(255,255,255,0.06); border-radius:50%; }
.hero-trophy { font-size: 3.5rem; margin-bottom: 8px; position:relative; z-index:1; }
.hero-title { font-size: 2.2rem; font-weight: 900; position:relative; z-index:1; letter-spacing:-1px; }
.hero-title em { color: var(--warning); font-style:normal; }
.hero-sub { font-size: 0.95rem; opacity: 0.85; margin-top: 6px; position:relative; z-index:1; }

/* ── TEXT INPUTS ── */
.text-input { width: 100%; padding: 16px 18px; border: 2px solid var(--border); border-radius: var(--radius); font-size: 1rem; font-weight: 600; color: var(--text); background: #fff; outline: none; transition: border-color 0.2s; margin-bottom: 12px; }
.text-input:focus { border-color: var(--primary); }
.text-input.error { border-color: var(--danger); animation: shake 0.3s; }
@keyframes shake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-8px)} 75%{transform:translateX(8px)} }
.input-label { font-size: 0.8rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; display: block; }

/* ── SUBJECT TOGGLE ── */
.subject-toggle { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin-bottom: 12px; }
.subj-btn { background: var(--card); border: 2px solid var(--border); border-radius: 12px; padding: 12px 8px; text-align: center; cursor: pointer; font-weight: 700; font-size: 0.85rem; transition: all 0.2s; color: var(--text-muted); }
.subj-btn.active { border-color: var(--primary); background: linear-gradient(135deg,#EEF0FF,#E8EAFF); color: var(--primary); }

/* ── TOPIC PICK TOGGLE ── */
.pick-toggle { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 12px; }
.pick-btn { border-radius: 12px; padding: 12px; text-align: center; font-weight: 700; font-size: 0.85rem; cursor: pointer; border: 2px solid var(--border); background: var(--card); color: var(--text-muted); transition: all 0.2s; }
.pick-btn.active { border-color: var(--primary); background: var(--primary); color: #fff; }
.topic-list-panel { display: none; max-height: 240px; overflow-y: auto; border: 2px solid var(--border); border-radius: 12px; background: #fff; }
.topic-list-panel.open { display: block; }
.topic-list-item { padding: 12px 16px; font-weight: 600; font-size: 0.9rem; cursor: pointer; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; transition: background 0.15s; }
.topic-list-item:last-child { border-bottom: none; }
.topic-list-item:hover, .topic-list-item.selected { background: #EEF0FF; color: var(--primary); }
.topic-list-item .tli-icon { font-size: 1.2rem; }

/* ── FLAG BUTTON ── */
.flag-btn { background:none; border:2px solid var(--border); border-radius:20px; padding:6px 14px; font-size:0.82rem; font-weight:700; color:var(--text-muted); cursor:pointer; transition:all 0.2s; display:inline-flex; align-items:center; gap:6px; }
.flag-btn:active { transform:scale(0.96); }
.flag-btn.flagged { border-color:var(--danger); color:var(--danger); background:#FFF5F5; }

/* ── QUIZ SCREEN ── */
.quiz-header { margin-bottom: 16px; }
.quiz-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.topic-tag { background: var(--primary); color: #fff; padding: 4px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 800; }
.level-tag { padding: 4px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 800; transition: background 0.2s; }
.progress-bar-wrap { background: var(--border); border-radius: 8px; height: 8px; overflow: hidden; }
.progress-bar-fill { background: linear-gradient(90deg, var(--success), #1DB954); height: 100%; border-radius: 8px; transition: width 0.4s ease; }
.q-number { font-size: 0.8rem; color: var(--text-muted); text-align: right; margin-top: 4px; font-weight: 600; }
.question-card { background: var(--card); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); margin-bottom: 16px; min-height: 120px; border-left: 5px solid var(--primary); }
.question-text { font-size: 1.15rem; font-weight: 700; line-height: 1.5; color: var(--navy); }
.options-grid { display: flex; flex-direction: column; gap: 10px; }
.option-btn { background: var(--card); border: 2px solid var(--border); border-radius: 14px; padding: 16px 20px; font-size: 1rem; font-weight: 600; cursor: pointer; text-align: left; transition: all 0.15s; width: 100%; color: var(--text); }
.option-btn:active, .option-btn.picked { border-color: var(--primary); background: linear-gradient(135deg,#EEF0FF,#E8EAFF); transform: scale(0.99); }
.option-btn:disabled { cursor: default; }
.skip-btn { background: transparent; border: 2px solid var(--border); color: var(--text-muted); border-radius: 12px; padding: 12px 20px; font-size: 0.9rem; font-weight: 700; cursor: pointer; margin-top: 12px; width: 100%; transition: all 0.2s; }
.skip-btn:hover { border-color: var(--text-muted); }

/* ── END SCREEN ── */
.trophy-section { text-align: center; padding: 28px 0 16px; }
.trophy-icon { font-size: 5rem; margin-bottom: 8px; }
.score-big { font-size: 3.5rem; font-weight: 900; color: var(--primary); letter-spacing: -2px; }
.score-label { color: var(--text-muted); font-size: 1rem; font-weight: 600; }
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 16px 0; }
.stat-box { background: var(--card); border-radius: 12px; padding: 14px; text-align: center; box-shadow: var(--shadow); }
.stat-val { font-size: 1.5rem; font-weight: 900; color: var(--primary); }
.stat-lbl { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.review-list { display: flex; flex-direction: column; gap: 12px; }
.review-item { background: var(--card); border-radius: 14px; padding: 16px; box-shadow: var(--shadow); border-left: 4px solid var(--danger); }
.review-item .q-text { font-weight: 700; margin-bottom: 8px; font-size: 0.95rem; }
.review-item .your-ans { color: var(--danger); font-size: 0.85rem; margin-bottom: 4px; font-weight: 600; }
.review-item .correct-ans { color: #1DB954; font-size: 0.85rem; font-weight: 800; }
.review-item .explanation { color: var(--text-muted); font-size: 0.82rem; margin-top: 8px; border-top: 1px solid var(--border); padding-top: 8px; }

/* ── DASHBOARD TABS ── */
.nav-tabs { display: flex; gap: 4px; background: var(--card); border-radius: 12px; padding: 4px; margin-bottom: 16px; box-shadow: var(--shadow); }
.nav-tab { flex: 1; padding: 10px; text-align: center; border-radius: 10px; font-weight: 700; font-size: 0.85rem; cursor: pointer; color: var(--text-muted); transition: all 0.2s; }
.nav-tab.active { background: var(--primary); color: #fff; }

/* ── TOPIC CARDS ── */
.topic-cards-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.topic-card { border-radius: 14px; padding: 16px; color: #fff; box-shadow: var(--shadow); position: relative; overflow: hidden; cursor: default; }
.topic-card .tc-icon { font-size: 2rem; margin-bottom: 6px; }
.topic-card .tc-name { font-size: 0.78rem; font-weight: 800; margin-bottom: 8px; line-height: 1.3; }
.topic-card .tc-bar-bg { background: rgba(255,255,255,0.3); border-radius: 4px; height: 6px; margin-bottom: 4px; }
.topic-card .tc-bar-fill { background: #fff; height: 100%; border-radius: 4px; transition: width 0.6s; }
.topic-card .tc-pct { font-size: 1.3rem; font-weight: 900; }
.topic-card .tc-sessions { font-size: 0.7rem; opacity: 0.85; font-weight: 600; }
.topic-card .tc-level { position: absolute; top: 10px; right: 10px; background: rgba(255,255,255,0.25); border-radius: 20px; font-size: 0.65rem; font-weight: 800; padding: 2px 8px; }

/* ── BADGE GRID ── */
.badge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.badge-item { background: var(--card); border-radius: 12px; padding: 14px; text-align: center; box-shadow: var(--shadow); opacity: 0.4; transition: opacity 0.3s; }
.badge-item.earned { opacity: 1; }
.badge-item .b-icon { font-size: 2rem; margin-bottom: 4px; }
.badge-item .b-name { font-size: 0.7rem; font-weight: 700; color: var(--text-muted); }

/* ── WEEKLY DOTS ── */
.weekly-wrap { display: flex; gap: 8px; justify-content: center; margin: 8px 0; }
.day-dot { width: 36px; height: 36px; border-radius: 50%; background: var(--border); display: flex; align-items: center; justify-content: center; font-size: 0.7rem; font-weight: 800; color: var(--text-muted); }
.day-dot.done { background: var(--success); color: var(--navy); }
.day-dot.today { border: 3px solid var(--primary); }

/* ── DISCLAIMER ── */
.disclaimer-box { background: #fff; border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 16px; max-height: 360px; overflow-y: auto; border: 2px solid var(--border); font-size: 0.82rem; line-height: 1.7; color: var(--text-muted); }
.disclaimer-box h3 { color: var(--text); font-size: 0.95rem; margin: 12px 0 6px; }
.agree-check { display: flex; align-items: flex-start; gap: 12px; background: #EEF0FF; border-radius: 12px; padding: 14px; margin-bottom: 16px; cursor: pointer; }
.agree-check input { width: 20px; height: 20px; accent-color: var(--primary); flex-shrink:0; margin-top:2px; cursor:pointer; }
.agree-check label { font-size: 0.9rem; font-weight: 600; color: var(--text); cursor: pointer; }

/* ── PARENT DASHBOARD ── */
.parent-student-card { background: var(--card); border-radius: 14px; padding: 16px; box-shadow: var(--shadow); margin-bottom: 12px; display: flex; align-items: center; gap: 16px; border-left: 5px solid var(--primary); }
.psc-avatar { font-size: 2rem; }
.psc-info { flex: 1; }
.psc-name { font-weight: 800; font-size: 1rem; color: var(--text); }
.psc-stats { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }
.psc-xp { font-weight: 900; font-size: 1.1rem; color: var(--primary); text-align: right; }
.psc-xp small { display:block; font-size:0.7rem; font-weight:600; color:var(--text-muted); }

/* ── LOADING ── */
#loading-overlay { position: fixed; inset: 0; background: var(--bg); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 999; gap: 16px; }
#loading-overlay .spinner { width: 48px; height: 48px; border: 5px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
#loading-overlay.hidden { display: none; }

/* ── TOAST ── */
#toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(80px); background: var(--navy); color: #fff; padding: 12px 24px; border-radius: 12px; font-weight: 700; font-size: 0.9rem; transition: transform 0.3s; z-index: 1000; white-space: nowrap; }
#toast.show { transform: translateX(-50%) translateY(0); }

/* ── EXPIRED OVERLAY ── */
#expired-overlay { position: fixed; inset: 0; background: rgba(26,26,46,0.75); display: none; align-items: center; justify-content: center; z-index: 998; }
#expired-overlay.show { display: flex; }
.expired-box { background: #fff; border-radius: 20px; padding: 32px; text-align: center; max-width: 320px; margin: 16px; }

@media (min-width: 480px) { .question-text { font-size: 1.25rem; } .screen { padding: 20px; } }

/* ── VOCAB POPUP ── */
#vocab-popup { position:fixed; bottom:0; left:0; right:0; background:#fff; border-radius:20px 20px 0 0; box-shadow:0 -4px 30px rgba(0,0,0,0.18); padding:20px 20px 36px; z-index:600; transform:translateY(100%); transition:transform 0.28s cubic-bezier(0.34,1.56,0.64,1); max-width:600px; margin:0 auto; pointer-events:none; }
#vocab-popup.show { transform:translateY(0); pointer-events:auto; }
#vocab-popup-overlay { position:fixed; inset:0; background:rgba(0,0,0,0.35); z-index:599; display:none; }
#vocab-popup-overlay.show { display:block; }
.vp-row { display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin-bottom:10px; }
.vp-word { font-size:1.4rem; font-weight:900; color:var(--primary); }
.vp-phonetic { font-size:0.85rem; color:var(--text-muted); font-weight:600; }
.vp-audio-btn { background:var(--primary); color:#fff; border:none; border-radius:50%; width:36px; height:36px; font-size:1rem; cursor:pointer; display:inline-flex; align-items:center; justify-content:center; transition:transform 0.15s; flex-shrink:0; }
.vp-audio-btn:active { transform:scale(0.88); }
.vp-def { font-size:0.95rem; color:#333; line-height:1.55; font-weight:500; }
.vocab-word { cursor:pointer; }

/* ── STORY LIBRARY ── */
#screen-stories { padding-bottom: 24px; }
.story-filter-bar { display: flex; gap: 8px; overflow-x: auto; padding: 4px 0 12px; -webkit-overflow-scrolling: touch; }
.story-filter-bar::-webkit-scrollbar { display: none; }
.sf-btn { flex-shrink: 0; padding: 6px 16px; border-radius: 20px; border: 2px solid var(--border); background: #fff; font-weight: 700; font-size: 0.8rem; color: var(--text-muted); cursor: pointer; transition: all 0.15s; }
.sf-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.story-card { background: #fff; border-radius: 16px; border: 2px solid var(--border); padding: 16px 14px; cursor: pointer; transition: transform 0.15s, box-shadow 0.15s; position: relative; overflow: hidden; }
.story-card:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.1); }
.story-card.locked { opacity: 0.55; cursor: default; }
.story-card .sc-emoji { font-size: 2.2rem; margin-bottom: 8px; display: block; }
.story-card .sc-title { font-size: 0.85rem; font-weight: 800; color: var(--navy); line-height: 1.25; margin-bottom: 4px; }
.story-card .sc-sub { font-size: 0.72rem; color: var(--text-muted); font-weight: 600; margin-bottom: 8px; }
.story-card .sc-level { font-size: 0.68rem; font-weight: 800; padding: 2px 8px; border-radius: 10px; display: inline-block; }
.sc-level-2 { background: #E1F5EE; color: #085041; }
.sc-level-3 { background: #E6F1FB; color: #0C447C; }
.sc-level-4 { background: #FAEEDA; color: #633806; }
.sc-lock-icon { position: absolute; top: 10px; right: 10px; font-size: 1rem; }
.sc-read-badge { position:absolute; top:8px; right:8px; background:#E53935; color:#fff; font-size:0.6rem; font-weight:900; padding:2px 7px; border-radius:10px; letter-spacing:0.05em; }
/* story reader */
#story-reader { position: fixed; inset: 0; background: #fff; z-index: 500; overflow-y: auto; display: none; padding: 0; }
#story-reader.open { display: block; }
.reader-header { position: sticky; top: 0; background: #fff; border-bottom: 2px solid var(--border); padding: 14px 16px; display: flex; align-items: center; gap: 12px; z-index: 10; }
.reader-back { background: none; border: none; font-size: 1.6rem; cursor: pointer; color: var(--primary); line-height: 1; padding: 0; }
.reader-title-block { flex: 1; }
.reader-title-block h2 { font-size: 1rem; font-weight: 900; color: var(--navy); margin: 0; }
.reader-title-block p { font-size: 0.75rem; color: var(--text-muted); font-weight: 600; margin: 2px 0 0; }
.reader-body { padding: 20px 18px 40px; max-width: 640px; margin: 0 auto; }
.reader-body p { font-size: 0.95rem; line-height: 1.75; color: #222; margin-bottom: 14px; }
.vocab-word { background: linear-gradient(120deg, rgba(108,99,255,0.15), rgba(108,99,255,0.08)); border-radius: 4px; padding: 1px 4px; font-weight: 700; color: var(--primary); cursor: help; border-bottom: 2px solid rgba(108,99,255,0.3); }
.reader-vocab { margin-top: 24px; background: #F8F7FF; border-radius: 16px; padding: 16px; border: 2px solid rgba(108,99,255,0.15); }
.reader-vocab h3 { font-size: 0.85rem; font-weight: 800; color: var(--primary); margin: 0 0 10px; }
.vocab-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.vocab-chip { background: #fff; border: 2px solid rgba(108,99,255,0.2); border-radius: 20px; padding: 4px 12px; font-size: 0.75rem; font-weight: 700; color: var(--navy); }

/* ── AVATAR SETUP ── */
.avatar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:16px 0;}
.avatar-opt{font-size:2.2rem;text-align:center;padding:12px;border-radius:16px;cursor:pointer;background:var(--surface);border:3px solid transparent;transition:all .2s;}
.avatar-opt.selected{border-color:var(--primary);background:#EEF0FF;transform:scale(1.1);}
.nickname-input{width:100%;padding:12px 14px;border-radius:12px;border:2px solid var(--border);font-size:1rem;font-weight:700;margin-bottom:4px;box-sizing:border-box;}
.nickname-input:focus{outline:none;border-color:var(--primary);}

/* ── LEADERBOARD ── */
.lb-rows{display:flex;flex-direction:column;gap:8px;margin-top:12px;}
.lb-row{display:flex;align-items:center;gap:12px;background:var(--surface);border-radius:14px;padding:12px 14px;}
.lb-row.me{background:linear-gradient(135deg,#EEF0FF,#E8F4FF);border:2px solid var(--primary);}
.lb-rank-num{font-size:1.1rem;font-weight:900;width:28px;text-align:center;}
.lb-av{font-size:1.7rem;}
.lb-info{flex:1;}
.lb-nick{font-weight:800;font-size:0.95rem;}
.lb-xp-label{font-size:0.75rem;color:var(--text-muted);font-weight:600;}
.lb-bar-wrap{width:70px;height:8px;background:#eee;border-radius:4px;overflow:hidden;}
.lb-bar-fill{height:100%;background:var(--primary);border-radius:4px;transition:width .4s;}
.lb-empty{text-align:center;padding:40px 20px;color:var(--text-muted);font-weight:700;}

/* ── DAILY CHALLENGE ── */
.daily-card{background:linear-gradient(135deg,#FF6B6B,#FF8E53);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;color:#fff;cursor:pointer;position:relative;overflow:hidden;}
.daily-card.done{background:linear-gradient(135deg,#2ECC71,#27AE60);cursor:default;}
.daily-card-tag{font-size:0.7rem;font-weight:800;letter-spacing:.08em;opacity:.85;text-transform:uppercase;}
.daily-card-title{font-size:1.05rem;font-weight:900;margin:4px 0 2px;}
.daily-card-sub{font-size:0.78rem;opacity:.85;}
.daily-xp-pill{position:absolute;top:14px;right:16px;background:rgba(255,255,255,0.3);border-radius:20px;padding:3px 10px;font-size:0.82rem;font-weight:900;}
#daily-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:900;display:none;align-items:center;justify-content:center;padding:20px;box-sizing:border-box;}
#daily-overlay.show{display:flex;}
#daily-modal{background:#fff;border-radius:24px;padding:24px;width:100%;max-width:420px;}
.dm-head{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.dm-head-icon{font-size:1.6rem;}
.dm-head-text{font-weight:900;font-size:1rem;}
.dm-head-xp{font-size:0.78rem;color:var(--primary);font-weight:800;margin-top:2px;}
.dm-question{font-size:1rem;font-weight:700;margin-bottom:16px;line-height:1.5;}
.dm-opts{display:flex;flex-direction:column;gap:8px;}
.dm-opt{background:var(--bg);border:2px solid var(--border);border-radius:12px;padding:12px 14px;cursor:pointer;font-weight:600;text-align:left;transition:all .15s;font-family:inherit;font-size:0.95rem;width:100%;}
.dm-opt:disabled{cursor:default;}
.dm-opt.correct{background:#EDFAF3;border-color:#1DB954;color:#085041;}
.dm-opt.wrong{background:#FFF0F0;border-color:var(--danger);color:#791F1F;}
.dm-result{text-align:center;padding:16px 0 8px;}
.dm-result-icon{font-size:2.8rem;}
.dm-result-msg{font-weight:900;font-size:1.1rem;margin:8px 0 4px;}
.dm-result-sub{font-size:0.82rem;color:var(--text-muted);}

/* ── STORY UNLOCK ANIMATION ── */
@keyframes lock-pop{0%{transform:scale(1)}30%{transform:scale(1.4) rotate(-15deg)}60%{transform:scale(.9) rotate(8deg)}100%{transform:scale(1) rotate(0)}}
.sc-lock-icon.unlocking{animation:lock-pop .55s ease forwards;}


/* ── MYSTERY BOX ── */
#mystery-box-overlay{position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:9998;display:none;align-items:center;justify-content:center;padding:20px;box-sizing:border-box;}
#mystery-box-overlay.show{display:flex;}
.mb-card{background:#fff;border-radius:24px;padding:32px 24px;max-width:340px;width:100%;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.4);}
.mb-title{font-size:1.4rem;font-weight:900;color:var(--primary);margin-bottom:6px;}
.mb-subtitle{font-size:0.82rem;color:var(--text-muted);margin-bottom:20px;}
.mb-box-icon{font-size:5rem;display:block;margin:0 auto 20px;animation:mb-bounce 0.7s ease-in-out infinite alternate;}
@keyframes mb-bounce{from{transform:translateY(0) rotate(-6deg);}to{transform:translateY(-14px) rotate(6deg);}}
.mb-reward-icon{font-size:4.5rem;display:block;margin:0 auto 10px;animation:mb-pop 0.45s cubic-bezier(.175,.885,.32,1.275);}
@keyframes mb-pop{from{transform:scale(0) rotate(-20deg);}to{transform:scale(1) rotate(0deg);}}
.mb-rarity{display:inline-block;padding:4px 14px;border-radius:20px;font-size:0.78rem;font-weight:800;margin:8px 0 14px;letter-spacing:.05em;}
.mb-rarity.Common{background:#E2E8F0;color:#475569;}
.mb-rarity.Uncommon{background:#D1FAE5;color:#065F46;}
.mb-rarity.Rare{background:#DBEAFE;color:#1E40AF;}
.mb-rarity.Legendary{background:linear-gradient(135deg,#FEF3C7,#FDE68A);color:#92400E;border:1px solid #F59E0B;}
.mb-dup{font-size:0.83rem;color:var(--success);font-weight:700;margin:4px 0 10px;}
/* ── LEADERBOARD CATEGORIES ── */
.lb-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px;justify-content:center;}
.lb-tab{padding:6px 10px;border-radius:20px;font-size:0.75rem;font-weight:800;cursor:pointer;border:2px solid var(--border);background:#fff;color:var(--text-muted);transition:all .15s;white-space:nowrap;}
.lb-tab.active{background:var(--primary);color:#fff;border-color:var(--primary);}
.lb-cat-desc{font-size:0.78rem;color:var(--text-muted);text-align:center;margin-bottom:10px;font-weight:600;}
/* ── CHEERS ── */
.cheer-notif{position:absolute;top:6px;right:8px;min-width:10px;height:10px;background:var(--danger);border-radius:50%;display:none;}
.cheer-notif.visible{display:block;}
.lb-row-actions{display:flex;align-items:center;gap:6px;margin-top:6px;}
.cheer-btn{background:linear-gradient(135deg,#FF6B6B,#FF8E53);color:#fff;border:none;border-radius:12px;padding:4px 10px;font-size:0.75rem;font-weight:800;cursor:pointer;}
.cheer-btn:disabled{background:#E2E8F0;color:#94A3B8;cursor:not-allowed;}
#cheers-overlay{position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:9999;display:none;align-items:center;justify-content:center;padding:20px;box-sizing:border-box;}
#cheers-overlay.show{display:flex;}
.cheers-card{background:#fff;border-radius:24px;padding:24px 20px;max-width:360px;width:100%;max-height:85vh;overflow-y:auto;}
.cheers-title{font-size:1.2rem;font-weight:900;color:var(--primary);margin-bottom:4px;}
.cheers-sub{font-size:0.8rem;color:var(--text-muted);margin-bottom:16px;}
.cheer-msg-btn{display:block;width:100%;text-align:left;background:#F8F7FF;border:2px solid var(--border);border-radius:12px;padding:10px 14px;margin-bottom:8px;font-size:0.9rem;font-weight:600;cursor:pointer;transition:all .15s;}
.cheer-msg-btn:hover{border-color:var(--primary);background:#EEF0FF;}
.cheer-msg-btn.selected{border-color:var(--primary);background:var(--primary);color:#fff;}
.cheer-inbox-item{background:#F8F7FF;border-radius:12px;padding:12px 14px;margin-bottom:8px;border-left:4px solid var(--primary);}
.cheer-inbox-from{font-size:0.75rem;font-weight:800;color:var(--primary);margin-bottom:4px;}
.cheer-inbox-msg{font-size:0.9rem;font-weight:600;color:var(--text);}
/* ── EASTER EGG FIREWORKS ── */
.ee-firework{position:fixed;pointer-events:none;z-index:8000;font-size:2rem;animation:ee-fly 1.2s ease-out forwards;}
@keyframes ee-fly{0%{opacity:1;transform:translateY(0) scale(1);}100%{opacity:0;transform:translateY(-120px) scale(0.3);}}
.ee-toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,#FFD700,#FF8C00);color:#fff;padding:10px 20px;border-radius:20px;font-weight:900;font-size:1rem;z-index:8001;animation:ee-toast 2s ease forwards;}
@keyframes ee-toast{0%{opacity:0;transform:translateX(-50%) scale(0.8);}15%{opacity:1;transform:translateX(-50%) scale(1);}80%{opacity:1;}100%{opacity:0;transform:translateX(-50%) scale(0.9);}}