/* FahrSchulNinja V2 - Premium Design */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --bg: #060b18;
    --bg2: #0d1424;
    --bg3: #131c30;
    --card: rgba(255,255,255,0.04);
    --card-hover: rgba(255,255,255,0.07);
    --border: rgba(255,255,255,0.08);
    --text: #e4e8f7;
    --text2: rgba(255,255,255,0.45);
    --text3: rgba(255,255,255,0.25);
    --accent: #f97316;
    --accent2: #fb923c;
    --accent-glow: rgba(249,115,22,0.15);
    --green: #22c55e;
    --green-glow: rgba(34,197,94,0.12);
    --red: #ef4444;
    --red-glow: rgba(239,68,68,0.12);
    --blue: #3b82f6;
    --blue-glow: rgba(59,130,246,0.12);
    --gold: #eab308;
    --purple: #a855f7;
    --teal: #14b8a6;
    --radius: 18px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
}

* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:'Plus Jakarta Sans',system-ui,sans-serif; background:var(--bg); color:var(--text); min-height:100vh; padding-bottom:80px; -webkit-font-smoothing:antialiased; }
.hidden { display:none!important; }

/* Animated BG */
body::before { content:''; position:fixed; top:0; left:0; right:0; bottom:0; background:radial-gradient(ellipse at 20% 50%, rgba(249,115,22,0.04) 0%, transparent 50%), radial-gradient(ellipse at 80% 20%, rgba(59,130,246,0.03) 0%, transparent 50%); pointer-events:none; z-index:0; }

/* Header */
.header { display:flex; justify-content:space-between; align-items:center; padding:14px 20px; border-bottom:1px solid var(--border); background:rgba(6,11,24,0.92); position:sticky; top:0; z-index:100; backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px); }
.header-left { display:flex; align-items:center; gap:12px; }
.logo { font-size:30px; filter:drop-shadow(0 0 8px rgba(249,115,22,0.3)); }
.header h1 { font-size:19px; font-weight:800; background:linear-gradient(135deg, var(--accent), #fbbf24); -webkit-background-clip:text; -webkit-text-fill-color:transparent; letter-spacing:-0.3px; }
.header p { font-size:10px; color:var(--text3); letter-spacing:1.5px; text-transform:uppercase; font-weight:600; }

/* Language Picker */
.lang-picker { position:relative; }
.lang-current { background:var(--card); border:1px solid var(--border); border-radius:var(--radius-xs); padding:8px 14px; color:var(--text); cursor:pointer; font:600 13px 'Plus Jakarta Sans',sans-serif; transition:all 0.2s; }
.lang-current:hover { border-color:var(--accent); background:var(--accent-glow); }
.lang-menu { position:absolute; top:calc(100% + 6px); right:0; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius-sm); padding:6px; z-index:200; min-width:170px; box-shadow:var(--shadow-lg); max-height:320px; overflow-y:auto; }
.lang-item { display:flex; align-items:center; gap:10px; width:100%; padding:10px 14px; border:none; border-radius:var(--radius-xs); color:var(--text); cursor:pointer; font:14px 'Plus Jakarta Sans',sans-serif; background:transparent; transition:all 0.15s; }
.lang-item:hover,.lang-item.active { background:var(--accent-glow); color:var(--accent); }

/* Pages */
.page { padding:16px; position:relative; z-index:1; animation:pageIn 0.35s cubic-bezier(0.16,1,0.3,1); }
@keyframes pageIn { from{opacity:0;transform:translateY(12px)} to{opacity:1;transform:translateY(0)} }

/* Welcome Card */
.welcome-card { background:linear-gradient(135deg, #1e1b4b 0%, #172554 40%, #0c4a6e 100%); border-radius:22px; padding:28px 24px; text-align:center; margin-bottom:20px; position:relative; overflow:hidden; box-shadow:0 8px 32px rgba(0,0,0,0.3); }
.welcome-card::before { content:''; position:absolute; top:-50%; right:-30%; width:200px; height:200px; background:radial-gradient(circle, rgba(249,115,22,0.12) 0%, transparent 70%); border-radius:50%; }
.welcome-card::after { content:''; position:absolute; bottom:-40%; left:-20%; width:180px; height:180px; background:radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%); border-radius:50%; }
.welcome-card h2 { font-size:26px; font-weight:800; position:relative; z-index:1; letter-spacing:-0.5px; }
.welcome-card p { position:relative; z-index:1; }
.trial-badge { display:inline-block; background:rgba(234,179,8,0.15); color:var(--gold); padding:5px 14px; border-radius:20px; font-size:12px; font-weight:700; margin-top:10px; border:1px solid rgba(234,179,8,0.2); position:relative; z-index:1; }

/* Stats Row */
.dash-stats { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; margin-top:22px; position:relative; z-index:1; }
.dash-stat { display:flex; flex-direction:column; gap:3px; padding:12px 6px; background:rgba(0,0,0,0.25); border-radius:14px; text-align:center; border:1px solid rgba(255,255,255,0.04); backdrop-filter:blur(4px); }
.ds-num { font-size:24px; font-weight:800; color:var(--gold); }
.ds-label { font-size:9px; color:var(--text3); text-transform:uppercase; letter-spacing:0.8px; font-weight:600; }
.text-green { color:var(--green)!important; }
.text-red { color:var(--red)!important; }

/* Action Grid */
.action-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-bottom:20px; }
.action-card { display:flex; flex-direction:column; align-items:center; gap:8px; padding:22px 10px; border:none; border-radius:var(--radius); cursor:pointer; color:#fff; font:700 13px 'Plus Jakarta Sans',sans-serif; transition:all 0.25s cubic-bezier(0.16,1,0.3,1); position:relative; overflow:hidden; }
.action-card::before { content:''; position:absolute; inset:0; background:linear-gradient(180deg, rgba(255,255,255,0.08) 0%, transparent 100%); opacity:0; transition:opacity 0.3s; }
.action-card:hover { transform:translateY(-3px); box-shadow:var(--shadow); }
.action-card:hover::before { opacity:1; }
.action-card:active { transform:scale(0.97); }
.action-card span { font-size:11px; opacity:0.9; }
.bg-blue { background:linear-gradient(145deg,#1e3a5f,#1e40af); }
.bg-red { background:linear-gradient(145deg,#7f1d1d,#b91c1c); }
.bg-green { background:linear-gradient(145deg,#064e3b,#047857); }
.bg-purple { background:linear-gradient(145deg,#3b0764,#7c3aed); }
.bg-teal { background:linear-gradient(145deg,#134e4a,#0d9488); }
.bg-orange { background:linear-gradient(145deg,#7c2d12,#ea580c); }

/* Category Chips */
.cat-chips h3 { font-size:15px; font-weight:700; color:var(--text2); margin-bottom:12px; }
.chips-row { display:flex; flex-wrap:wrap; gap:7px; }
.chip { background:var(--card); border:1px solid var(--border); border-radius:20px; padding:8px 14px; color:var(--text); font:500 11px 'Plus Jakarta Sans',sans-serif; cursor:pointer; white-space:nowrap; transition:all 0.2s; }
.chip:hover { background:var(--accent-glow); border-color:var(--accent); color:var(--accent); transform:translateY(-1px); }

/* Question Card */
.theorie-header { display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:8px; margin-bottom:14px; }
.theorie-header h2 { font-size:22px; font-weight:800; letter-spacing:-0.3px; }
.kat-select { background:var(--card); border:1px solid var(--border); border-radius:var(--radius-xs); padding:8px 14px; color:var(--text); font:13px 'Plus Jakarta Sans',sans-serif; cursor:pointer; }
.progress-bar { height:5px; background:rgba(255,255,255,0.06); border-radius:3px; overflow:hidden; margin-bottom:6px; }
.progress-fill { height:100%; background:linear-gradient(90deg,var(--accent),#fbbf24); border-radius:3px; transition:width 0.4s cubic-bezier(0.16,1,0.3,1); }
.q-count { font-size:12px; color:var(--text3); text-align:center; margin-bottom:12px; font-weight:500; }
.q-card { background:var(--bg2); border:1px solid var(--border); border-radius:22px; padding:26px; box-shadow:var(--shadow); }
.q-meta { display:flex; gap:8px; margin-bottom:14px; }
.badge { font-size:10px; font-weight:700; padding:4px 12px; border-radius:20px; color:#fff; text-transform:uppercase; letter-spacing:0.5px; }
.badge-leicht { background:var(--green); }
.badge-mittel { background:var(--accent); }
.badge-schwer { background:var(--red); }
.badge-pts { background:rgba(255,255,255,0.06); color:var(--text2); border:1px solid var(--border); }
.q-text { font-size:17px; font-weight:600; line-height:1.55; margin-bottom:18px; letter-spacing:-0.2px; }

/* Options */
.options { display:flex; flex-direction:column; gap:9px; }
.opt-btn { display:flex; align-items:center; gap:14px; padding:15px 18px; border:2px solid var(--border); border-radius:var(--radius-sm); background:var(--card); cursor:pointer; font:14px 'Plus Jakarta Sans',sans-serif; color:var(--text); text-align:left; transition:all 0.2s; }
.opt-btn:hover { border-color:rgba(255,255,255,0.15); background:var(--card-hover); transform:translateX(3px); }
.opt-btn.selected { border-color:var(--accent); background:var(--accent-glow); }
.opt-btn.correct { border-color:var(--green)!important; background:var(--green-glow)!important; }
.opt-btn.wrong { border-color:var(--red)!important; background:var(--red-glow)!important; }
.opt-letter { min-width:32px; height:32px; display:flex; align-items:center; justify-content:center; border-radius:var(--radius-xs); background:rgba(255,255,255,0.06); font-weight:700; font-size:13px; flex-shrink:0; border:1px solid var(--border); }
.opt-btn.selected .opt-letter { background:var(--accent); color:#fff; border-color:var(--accent); }
.opt-btn.correct .opt-letter { background:var(--green); color:#fff; border-color:var(--green); }
.opt-btn.wrong .opt-letter { background:var(--red); color:#fff; border-color:var(--red); }

/* Feedback */
.feedback { border:1px solid; border-radius:var(--radius-sm); padding:18px; margin-top:18px; }
.fb-correct { background:var(--green-glow); border-color:rgba(34,197,94,0.3); }
.fb-wrong { background:var(--red-glow); border-color:rgba(239,68,68,0.3); }
.fb-title { font-size:16px; font-weight:700; margin-bottom:8px; }
.fb-correct .fb-title { color:var(--green); }
.fb-wrong .fb-title { color:var(--red); }

/* Buttons */
.btn-row { display:flex; gap:10px; justify-content:center; margin-top:18px; flex-wrap:wrap; }
.btn-primary { background:linear-gradient(135deg,var(--accent),#f59e0b); border:none; border-radius:var(--radius-sm); padding:14px 34px; color:#fff; font:700 15px 'Plus Jakarta Sans',sans-serif; cursor:pointer; transition:all 0.25s; box-shadow:0 4px 16px rgba(249,115,22,0.25); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 24px rgba(249,115,22,0.35); }
.btn-primary:active { transform:scale(0.97); }
.btn-primary.disabled { opacity:0.4; pointer-events:none; box-shadow:none; }
.btn-secondary { background:var(--card); border:1px solid var(--border); border-radius:var(--radius-sm); padding:14px 24px; color:var(--text); font:600 14px 'Plus Jakarta Sans',sans-serif; cursor:pointer; transition:all 0.2s; }
.btn-secondary:hover { border-color:var(--accent); background:var(--accent-glow); }
.btn-danger { background:var(--red-glow); border:1px solid rgba(239,68,68,0.2); border-radius:var(--radius-sm); padding:12px 24px; color:var(--red); font:600 13px 'Plus Jakarta Sans',sans-serif; cursor:pointer; margin-top:20px; }

/* Stats */
.stats-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-bottom:24px; }
.stat-card { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); padding:22px; text-align:center; box-shadow:var(--shadow); }
.stat-card.green { border-color:rgba(34,197,94,0.25); background:linear-gradient(180deg,var(--bg2),rgba(34,197,94,0.03)); }
.stat-card.red { border-color:rgba(239,68,68,0.25); background:linear-gradient(180deg,var(--bg2),rgba(239,68,68,0.03)); }
.stat-card.gold { border-color:rgba(234,179,8,0.25); background:linear-gradient(180deg,var(--bg2),rgba(234,179,8,0.03)); }
.sc-num { display:block; font-size:34px; font-weight:800; letter-spacing:-1px; }
.stat-card.green .sc-num { color:var(--green); }
.stat-card.red .sc-num { color:var(--red); }
.stat-card.gold .sc-num { color:var(--gold); }
.sc-label { font-size:11px; color:var(--text3); text-transform:uppercase; letter-spacing:0.8px; font-weight:600; margin-top:4px; }

/* Category Stats */
.cat-stats { display:flex; flex-direction:column; gap:10px; margin-top:14px; }
.cat-row { display:flex; align-items:center; gap:10px; font-size:13px; }
.cat-name { min-width:130px; font-weight:500; }
.cat-bar { flex:1; height:7px; background:rgba(255,255,255,0.05); border-radius:4px; overflow:hidden; }
.cat-fill { height:100%; border-radius:4px; transition:width 0.5s cubic-bezier(0.16,1,0.3,1); }
.cat-pct { min-width:70px; text-align:right; color:var(--text3); font-size:11px; font-weight:600; }

/* Bottom Nav */
.bottom-nav { position:fixed; bottom:0; left:0; right:0; display:flex; justify-content:space-around; padding:6px 0 14px; background:rgba(6,11,24,0.92); border-top:1px solid var(--border); backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px); z-index:100; }
.nav-btn { display:flex; flex-direction:column; align-items:center; gap:3px; background:none; border:none; cursor:pointer; padding:6px 10px; color:var(--text3); transition:all 0.2s; font-family:'Plus Jakarta Sans',sans-serif; position:relative; }
.nav-btn.active { color:var(--accent); }
.nav-btn.active::after { content:''; position:absolute; top:-6px; left:50%; transform:translateX(-50%); width:20px; height:3px; background:var(--accent); border-radius:2px; }
.nav-icon { font-size:20px; }
.nav-label { font-size:9px; font-weight:700; letter-spacing:0.5px; text-transform:uppercase; }

/* Abo Wall */
#aboWall { position:fixed; inset:0; background:rgba(0,0,0,0.92); z-index:9999; display:flex; align-items:center; justify-content:center; padding:20px; backdrop-filter:blur(8px); }
.abo-wall-content { background:var(--bg2); border-radius:24px; padding:40px; text-align:center; max-width:500px; width:100%; box-shadow:var(--shadow-lg); border:1px solid var(--border); }
.abo-options { display:flex; gap:14px; margin:24px 0; flex-wrap:wrap; justify-content:center; }
.abo-card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:24px; flex:1; min-width:180px; transition:all 0.2s; }
.abo-card:hover { border-color:var(--accent); transform:translateY(-2px); }
.abo-card.featured { border-color:var(--accent); position:relative; background:var(--accent-glow); }
.abo-badge { position:absolute; top:-10px; left:50%; transform:translateX(-50%); background:var(--accent); color:#fff; padding:3px 14px; border-radius:20px; font-size:10px; font-weight:700; letter-spacing:0.5px; }
.abo-price { font-size:28px; font-weight:800; color:var(--gold); margin:12px 0; }

/* Auth */
.auth-container { max-width:440px; margin:40px auto; padding:0 20px; }
.auth-card { background:var(--bg2); border:1px solid var(--border); border-radius:24px; padding:34px; box-shadow:var(--shadow-lg); }
.auth-card h2 { text-align:center; margin-bottom:26px; font-size:24px; font-weight:800; }
.form-group { margin-bottom:16px; }
.form-group label { display:block; font-size:12px; font-weight:600; margin-bottom:6px; color:var(--text2); text-transform:uppercase; letter-spacing:0.5px; }
.form-group input,.form-group select { width:100%; padding:13px 16px; background:var(--card); border:1px solid var(--border); border-radius:var(--radius-xs); color:var(--text); font:14px 'Plus Jakarta Sans',sans-serif; transition:border-color 0.2s; }
.form-group input:focus { border-color:var(--accent); outline:none; box-shadow:0 0 0 3px var(--accent-glow); }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.checkbox-group { display:flex; align-items:center; gap:8px; font-size:13px; margin-bottom:12px; }
.checkbox-group input[type="checkbox"] { width:18px; height:18px; accent-color:var(--accent); }
.pw-strength { height:4px; border-radius:2px; margin-top:6px; transition:all 0.3s; }
.error-msg { background:var(--red-glow); border:1px solid rgba(239,68,68,0.2); border-radius:var(--radius-xs); padding:12px; color:var(--red); font-size:13px; margin-bottom:16px; text-align:center; }
.success-msg { background:var(--green-glow); border:1px solid rgba(34,197,94,0.2); border-radius:var(--radius-xs); padding:12px; color:var(--green); font-size:13px; margin-bottom:16px; text-align:center; }
.auth-toggle { text-align:center; margin-top:18px; font-size:13px; color:var(--text3); }
.auth-toggle a { color:var(--accent); text-decoration:none; font-weight:700; }

/* Wissenschaft */
.wiss-panel { display:flex; flex-direction:column; gap:10px; }
.wiss-card { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); padding:22px; cursor:pointer; transition:all 0.25s; box-shadow:var(--shadow); }
.wiss-card:hover { border-color:var(--accent); transform:translateY(-2px); box-shadow:0 8px 32px rgba(249,115,22,0.1); }
.wiss-card h3 { font-size:15px; font-weight:700; margin-bottom:6px; }
.wiss-card p { font-size:12px; color:var(--text2); line-height:1.5; }

/* Flashcards */
.karten-container { display:flex; flex-direction:column; align-items:center; gap:18px; }
.karte { width:100%; max-width:420px; min-height:220px; perspective:1200px; cursor:pointer; }
.karte-inner { position:relative; width:100%; height:220px; transition:transform 0.7s cubic-bezier(0.16,1,0.3,1); transform-style:preserve-3d; }
.karte.flip .karte-inner { transform:rotateY(180deg); }
.karte-front,.karte-back { position:absolute; inset:0; backface-visibility:hidden; border-radius:22px; padding:28px; display:flex; align-items:center; justify-content:center; text-align:center; font-weight:600; box-shadow:var(--shadow); border:1px solid var(--border); }
.karte-front { background:linear-gradient(145deg,#1e1b4b,#1e3a5f); font-size:20px; letter-spacing:-0.3px; }
.karte-back { background:linear-gradient(145deg,#064e3b,#065f46); transform:rotateY(180deg); font-size:16px; font-weight:400; line-height:1.6; }

/* Exam Timer */
.exam-timer { font-variant-numeric:tabular-nums; font-weight:800; font-size:18px; }
.exam-timer.warning { color:var(--red); animation:pulse 1s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.5} }

/* Responsive */
@media(max-width:480px) {
    .dash-stats { grid-template-columns:repeat(2,1fr); }
    .action-grid { grid-template-columns:repeat(2,1fr); }
    .form-row { grid-template-columns:1fr; }
    .abo-options { flex-direction:column; }
    .q-text { font-size:15px; }
    .welcome-card h2 { font-size:22px; }
}
@media(min-width:768px) {
    .action-grid { grid-template-columns:repeat(3,1fr); max-width:600px; margin-left:auto; margin-right:auto; }
    .q-card { max-width:700px; margin-left:auto; margin-right:auto; }
}
/* Klassenauswahl */
.klassen-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;margin:16px 0}
.klasse-card{background:var(--bg2,#1a1a2e);border:2px solid rgba(255,255,255,0.08);border-radius:14px;padding:16px 12px;text-align:center;cursor:pointer;transition:all 0.25s}
.klasse-card:hover{border-color:#f97316;transform:translateY(-2px);box-shadow:0 8px 25px rgba(249,115,22,0.15)}
.klasse-card.active{border-color:#f97316;background:rgba(249,115,22,0.08);box-shadow:0 0 20px rgba(249,115,22,0.12)}
.kc-icon{font-size:32px;margin-bottom:6px}
.kc-name{font-size:12px;font-weight:700;margin-bottom:3px}
.kc-stats{font-size:11px;color:#f97316;font-weight:600;margin-bottom:3px}
.kc-desc{font-size:10px;color:rgba(255,255,255,0.4)}
.kc-pruefung{font-size:9px;color:#60a5fa;margin-top:4px;font-weight:600}

/* Verkehrszeichen */
.vz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px;margin:16px 0}
.vz-card{background:var(--bg2,#1a1a2e);border:1px solid rgba(255,255,255,0.08);border-radius:10px;padding:12px;text-align:center;cursor:pointer;transition:all 0.2s}
.vz-card:hover{border-color:#f97316;transform:translateY(-2px)}
.vz-card img{width:70px;height:70px;object-fit:contain;margin-bottom:6px}
.vz-card .vz-name{font-size:10px;font-weight:600}
.vz-card .vz-nr{font-size:9px;color:rgba(255,255,255,0.3)}

/* Kategorie Items */
.kat-list{display:flex;flex-direction:column;gap:6px;margin:12px 0}
.kat-item{display:flex;align-items:center;gap:10px;background:var(--bg2,#1a1a2e);border:1px solid rgba(255,255,255,0.06);border-radius:10px;padding:12px 14px;cursor:pointer;transition:all 0.2s}
.kat-item:hover{border-color:#f97316;transform:translateX(3px)}
.kat-icon{font-size:22px;min-width:32px;text-align:center}
.kat-info{flex:1}
.kat-name{font-size:13px;font-weight:600}
.kat-count{font-size:11px;color:rgba(255,255,255,0.4)}

/* Section Header */
.section-head{display:flex;justify-content:space-between;align-items:center;margin:20px 0 10px}
.section-head h3{font-size:16px;font-weight:700;margin:0}
.section-head .badge{background:#f97316;color:#fff;font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px}