:root{
    --bg:#0b1020;
    --accent:#35c5c5;
    --muted:#cbd5e1;
    --glass: rgba(255,255,255,0.06);
    --panel: rgba(10,18,34,0.78);
    --panel-strong: rgba(9,16,30,0.92);
    --line: rgba(120,203,203,0.12);
    --line-strong: rgba(120,203,203,0.22);
    --shadow: 0 18px 42px rgba(0,0,0,0.28);
    --max-width:1100px;
    --radius-lg: 14px;
    --radius-md: 10px;
    --radius-sm: 6px;
    color-scheme: light dark;
}
html,body{height:100%;margin:0;font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial; background:
radial-gradient(circle at top, rgba(53,197,197,0.12), transparent 30%),
linear-gradient(180deg, #0b1020 0%, #0a1221 42%, #09131b 100%);
background-attachment:fixed;
background-repeat:no-repeat;
background-size:cover;
color:var(--muted);font-weight:300;max-width:1280px;margin:0 auto}
.global-bg{
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background:
        radial-gradient(circle at 12% 18%, rgba(53,197,197,0.10), transparent 18%),
        radial-gradient(circle at 82% 16%, rgba(53,197,197,0.08), transparent 17%),
        radial-gradient(circle at 50% 78%, rgba(53,197,197,0.05), transparent 26%),
        linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0));
    filter:saturate(1.02);
    animation:none;
}
.global-bg::after{
    content:"";
    position:absolute;
    inset:0;
    background-image:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size:38px 38px;
    mask-image:linear-gradient(180deg, rgba(0,0,0,0.5), transparent 90%);
    opacity:0.16;
    animation:none;
}
.global-bg::before{
    content:"";
    position:absolute;
    inset:-8%;
    background:
        radial-gradient(circle at center, rgba(53,197,197,0.04), transparent 42%);
    mix-blend-mode:screen;
    opacity:0.32;
    animation:none;
}
.wrap{position:relative;z-index:1;min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:28px 18px 56px;box-sizing:border-box}
header{width:100%;max-width:var(--max-width);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0 18px;border-bottom:1px solid rgba(53,197,197,0.08)}
header nav .btn{min-height:34px;padding:7px 22px;font-size:0.9rem;border-radius:var(--radius-md)}
.brand{display:flex;flex-direction:column}
.brand h1{margin:0;font-size:clamp(1.2rem, 3vw, 1.6rem);color:var(--accent)}
.brand p{margin:2px 0 0 0;color:#a8c0c0}
main{width:100%;max-width:var(--max-width);margin-top:26px;position:relative;flex:1;display:flex;flex-direction:column;gap:28px}

/* Welcome page: vertically center hero between header and footer */
body.welcome main{display:flex;flex-direction:column;justify-content:center}
body.welcome .global-bg{display:none}
body.welcome .wrap{z-index:auto}
body.welcome .hero{min-height:320px;background:
radial-gradient(circle at top, rgba(53,197,197,0.12), transparent 30%),
linear-gradient(180deg, #0b1020 0%, #0a1221 42%, #09131b 100%);
border-radius:var(--radius-lg);border:1px solid rgba(53,197,197,0.1);box-shadow:0 8px 24px rgba(0,0,0,0.3);backdrop-filter:none}
body.welcome #bgCanvas{display:block;position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0;opacity:0.55}
body.welcome .hero-content{align-items:center;text-align:center;max-width:1000px;padding:48px 28px;gap:28px}
body.welcome .title{text-align:center}
body.welcome .actions{margin-top:32px}
body.welcome .actions .btn{min-height:34px;padding:7px 24px;font-size:0.9rem;border-radius:var(--radius-md)}

.hero{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--panel);min-height:0;display:flex;align-items:center;justify-content:center;margin-bottom:0;border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(16px)}
#bgCanvas, #bgCanvas2, #bgCanvas3, #bgCanvas4, #bgCanvas5{display:none}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg, rgba(53,197,197,0.06), transparent 28%, transparent 72%, rgba(53,197,197,0.05));pointer-events:none}
.hero-content{position:relative;z-index:2;padding:42px 34px 38px;display:flex;flex-direction:column;gap:18px;align-items:flex-start;text-align:left;max-width:1120px;width:100%}
.title{font-size:clamp(1.8rem, 5vw, 2.8rem);margin:0;color:#fff;text-align:center;letter-spacing:0.8px;font-weight:600}
.section-title{font-size:clamp(1.4rem, 3.5vw, 2rem);margin:0;color:#fff;text-align:left;letter-spacing:0.6px;font-weight:600}
.subtitle{margin:0;color:#c8d9da;text-align:left;font-size:1.05rem;line-height:1.6;font-weight:300;max-width:760px}
.actions{display:flex;gap:16px;margin-top:6px;justify-content:center;width:100%}
.preferences-form{display:grid;grid-template-columns:repeat(auto-fit, minmax(250px, 1fr));gap:18px;max-width:1100px;margin:0;padding:0;width:100%}
.field{display:flex;flex-direction:column;gap:10px;padding:18px 18px 16px;border-radius:var(--radius-lg);background:linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.025));border:1px solid var(--line);transition:all .2s ease;box-shadow:inset 0 1px 0 rgba(255,255,255,0.03)}
.field[hidden]{display:none !important}
.field:hover{background:linear-gradient(180deg, rgba(255,255,255,0.055), rgba(255,255,255,0.03));border-color:var(--line-strong);transform:translateY(-2px)}
.field:focus-within{background:linear-gradient(180deg, rgba(255,255,255,0.065), rgba(255,255,255,0.035));border-color:rgba(53,197,197,0.28);box-shadow:0 0 0 1px rgba(53,197,197,0.12)}
.field.is-disabled{opacity:0.56;background:rgba(255,255,255,0.02);border-color:rgba(255,255,255,0.06)}
.field.is-disabled:hover{background:rgba(255,255,255,0.02);border-color:rgba(255,255,255,0.06);transform:none}
.field.checkbox-field{flex-direction:row;align-items:center;padding:14px 16px}
.field.full-width{grid-column:1/-1}
.button-stack{grid-column:1/-1;display:flex;gap:12px;flex-wrap:wrap;align-items:center;padding-top:4px}
.field label{color:#eef7f7;font-size:0.95rem;font-weight:600;letter-spacing:0.2px;text-transform:none;margin-bottom:2px;line-height:1.45}
.field label span{color:var(--accent);font-weight:500}
.field input[type="range"]{width:100%;padding:0;height:8px;border-radius:999px;background:rgba(255,255,255,0.12);border:none;outline:none;-webkit-appearance:none;appearance:none;cursor:pointer;transition:background .2s ease}
.field input[type="range"]:hover{background:rgba(255,255,255,0.15)}
.field input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer;box-shadow:0 2px 8px rgba(53,197,197,0.45);transition:box-shadow .2s ease,transform .2s ease}
.field input[type="range"]::-webkit-slider-thumb:hover{box-shadow:0 2px 10px rgba(53,197,197,0.6);transform:scale(1.15)}
.field input[type="range"]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer;border:none;box-shadow:0 2px 8px rgba(53,197,197,0.45);transition:box-shadow .2s ease,transform .2s ease}
.field input[type="range"]::-moz-range-thumb:hover{box-shadow:0 2px 10px rgba(53,197,197,0.6);transform:scale(1.15)}
.field input[type="number"]{padding:12px 14px;border-radius:var(--radius-md);background:rgba(255,255,255,0.065);border:1px solid rgba(255,255,255,0.08);color:#fff;font-size:0.95rem;width:100%;height:44px;transition:all .2s ease;box-sizing:border-box}
.field input[type="number"]:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.12)}
.field input[type="number"]:focus{outline:none;background:rgba(255,255,255,0.1);border-color:rgba(53,197,197,0.4);box-shadow:0 0 0 3px rgba(53,197,197,0.1)}
.field input[type="number"]:disabled{background:rgba(255,255,255,0.03);border-color:rgba(255,255,255,0.05);color:#8da1a1;cursor:not-allowed}
.field select{padding:12px 14px;border-radius:var(--radius-md);background:rgba(255,255,255,0.065);border:1px solid rgba(255,255,255,0.08);color:#fff;font-size:0.95rem;width:100%;height:44px;transition:all .2s ease;cursor:pointer;box-sizing:border-box}
.field select:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.12)}
.field select:focus{outline:none;background:rgba(255,255,255,0.1);border-color:rgba(53,197,197,0.4);box-shadow:0 0 0 3px rgba(53,197,197,0.1)}
.field select option{background:var(--bg);color:#fff}
.field input[type="checkbox"]{width:18px;height:18px;cursor:pointer;accent-color:var(--accent)}
.field input[type="text"]{padding:12px 14px;border-radius:var(--radius-md);background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.08);color:#999;font-size:0.95rem;cursor:not-allowed;flex:1;height:44px}
.radio-group{display:flex;gap:10px;flex-wrap:wrap;margin-top:4px}
.radio-group label{display:flex;align-items:center;gap:8px;color:#e0e0e0;font-size:0.92rem;cursor:pointer;user-select:none;transition:color .2s ease, border-color .2s ease, background .2s ease;padding:9px 12px;border-radius:var(--radius-md);border:1px solid rgba(255,255,255,0.08);background:rgba(255,255,255,0.03)}
.radio-group label:hover{color:var(--accent)}
.radio-group label input[type="radio"]{cursor:pointer;accent-color:var(--accent)}
.drop-zone{position:relative;padding:38px;border:2px dashed rgba(53,197,197,0.3);border-radius:var(--radius-lg);cursor:pointer;background:linear-gradient(180deg, rgba(53,197,197,0.08), rgba(53,197,197,0.035));transition:all .2s ease;min-height:120px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center}
.drop-zone:hover{border-color:rgba(53,197,197,0.5);background:rgba(53,197,197,0.08)}
.drop-zone.dragover{border-color:var(--accent);background:rgba(53,197,197,0.12);box-shadow:0 0 0 1px var(--accent)}
.drop-zone__label{font-size:1rem;color:#dfeef0;line-height:1.7}
.drop-zone input[type="file"]{position:absolute;inset:0;opacity:0;cursor:pointer}
.note{font-size:0.84rem;color:#91a4a9;margin-top:2px;line-height:1.6}
.output-controls{display:flex;gap:10px;width:100%;align-items:center}
.btn{background:var(--accent);color:#042; padding:13px 20px;min-height:46px;border-radius:var(--radius-md);text-decoration:none;font-weight:600;border:none;cursor:pointer;transition:all .2s ease;font-size:0.95rem;letter-spacing:0.2px;display:inline-flex;align-items:center;justify-content:center;gap:8px;line-height:1.1}
.btn:hover{box-shadow:0 4px 12px rgba(53,197,197,0.3);transform:translateY(-2px)}
.btn:active{transform:translateY(0);box-shadow:0 2px 6px rgba(53,197,197,0.2)}
.btn:disabled{opacity:0.5;cursor:not-allowed;transform:none}
.btn.secondary{background:transparent;border:1.5px solid rgba(255,255,255,0.12);color:var(--muted);font-weight:400}
.btn.secondary:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.2);color:#fff}
.btn.secondary-btn{background:transparent;border:1.5px solid rgba(255,255,255,0.12);color:var(--muted);font-weight:500;padding:13px 18px;font-size:0.92rem}
.btn.secondary-btn:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.2);color:#fff}
.btn.primary-btn{background:var(--accent);color:#042;padding:13px 22px;font-size:0.95rem;font-weight:600}
.btn.primary-btn:hover{box-shadow:0 6px 16px rgba(53,197,197,0.35)}
.save-btn{padding:13px 22px;font-size:0.95rem;font-weight:600;letter-spacing:0.2px}
.clear-btn{padding:13px 22px;font-size:0.95rem;font-weight:600;letter-spacing:0.2px;background:#dc3545;color:#fff;border:1px solid #dc3545}
.clear-btn:hover{background:#c82333;border-color:#bd2130;box-shadow:0 6px 16px rgba(220,53,69,0.4);transform:translateY(-2px)}
.button-group{display:flex;gap:12px;justify-content:center;margin:10px 0 0;flex-wrap:wrap;width:100%}
.button-group .btn,
.button-stack .btn{min-width:168px}
.button-stack{grid-column:1/-1;display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:center;padding-top:4px}

/* Genre grid */
.genre-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(250px, 1fr));gap:18px;margin-top:22px}
.card{background:var(--glass);padding:24px;border-radius:var(--radius-md);color:var(--muted);display:flex;flex-direction:column;gap:10px;align-items:flex-start;transition:transform .18s ease,box-shadow .18s ease}
.card.selected{outline:2px solid rgba(53,197,197,0.18);box-shadow:0 8px 26px rgba(3,8,18,0.6);transform:translateY(-6px)}
.card h3{margin:0;color:#fff;font-size:clamp(1rem, 2.5vw, 1.2rem)}
.card p{margin:0;color:#bcdada;font-size:clamp(0.9rem, 2vw, 1rem)}
.card a{margin-top:8px;color:var(--accent);text-decoration:none;font-weight:400}

footer{width:100%;max-width:var(--max-width);margin-top:28px;padding-top:12px;border-top:1px solid rgba(53,197,197,0.08);color:#8899a0;font-size:clamp(0.9rem, 1.8vw, 1rem)}

/* Spacing for sections moved from inline styles */
#genres{margin-top:22px}
#preferences{margin-top:22px}
.step-actions{width:100%;max-width:var(--max-width);display:flex;justify-content:center;margin-top:16px}

/* Responsive tweaks */
@media (min-width: 1200px) {
    .wrap { padding: 32px 18px 52px; }
    .title { font-size: 2.8rem; }
    .hero { min-height: 0; }
    .card { padding: 28px; }
    .genre-grid { gap: 20px; }
    .hero-content { padding: 48px 36px 42px; gap: 20px; }
    .btn { padding: 14px 24px; }
    .preferences-form{grid-template-columns:repeat(4, 1fr);gap:18px;max-width:1200px}
}
@media (max-width:1024px){
    .preferences-form{grid-template-columns:repeat(3, 1fr);gap:16px;max-width:1000px}
    .hero-content { padding: 40px 24px 34px; gap: 20px; }
}
@media (max-width:900px){
    .genre-grid{grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));gap:16px}
    .preferences-form{grid-template-columns:repeat(2, 1fr);gap:16px}
    .hero-content{padding:34px 22px 30px;gap:18px}
    .section-title{font-size:1.6rem}
}
@media (max-width:768px){
    .preferences-form{grid-template-columns:1fr;gap:14px}
    .hero-content{padding:30px 18px 26px;gap:16px}
    .title{font-size:2.2rem}
    .field{padding:16px}
    .simple-panel{padding:28px;margin-top:40px}
    .button-group{justify-content:stretch}
    .button-stack{flex-direction:column;align-items:stretch}
    .button-group .btn,
    .button-stack .btn{width:100%}
}
@media (max-width:600px){
    .title{font-size:1.8rem}
    .hero{min-height:320px}
    .brand h1{font-size:1.3rem}
    .genre-grid{grid-template-columns:repeat(auto-fit, minmax(180px, 1fr));gap:14px}
    .wrap { padding: 18px 10px 34px; }
    .hero-content { padding: 26px 14px 22px; gap: 14px; }
    .card { padding: 20px; }
    .btn { padding: 12px 18px; }
    .preferences-form{grid-template-columns:1fr;gap:12px}
    .field{flex-direction:column;align-items:flex-start;padding:14px}
    .field label{min-width:auto;white-space:normal;font-size:0.93rem}
    .field input[type="text"]{flex:1;width:100%}
    .output-controls{flex-direction:column;}
    .btn.secondary-btn{width:100%}
    .drop-zone{padding:28px;min-height:80px}
    .button-group{gap:12px;margin:32px 0 0}
    .save-btn{padding:12px 18px;font-size:0.95rem}
    .simple-panel{padding:24px;margin-top:32px}
}
@media (max-width:480px){
    .title{font-size:1.6rem}
    .section-title{font-size:1.3rem}
    .hero{min-height:300px}
    .brand h1{font-size:1.1rem}
    .genre-grid{grid-template-columns:1fr;gap:12px}
    .wrap { padding: 14px 8px 22px; }
    .hero-content { padding: 22px 12px 20px; gap: 14px; }
    .card { padding: 16px; }
    .btn { padding: 10px 16px; font-size:0.9rem }
    .preferences-form{gap:12px}
    .field{padding:12px}
    .field label{font-size:0.88rem}
    .save-btn{padding:10px 16px;font-size:0.9rem}
    .clear-btn{padding:10px 16px;font-size:0.9rem}
    .output-controls{flex-direction:column;}
    .button-group{gap:10px;margin:28px 0 0}
    .simple-panel{padding:20px;margin-top:28px}
    .drop-zone{padding:20px;min-height:70px;padding-left:18px;padding-right:18px}
}

/* Simple preferences panel */
.simple-panel{
    background:linear-gradient(135deg, rgba(53,197,197,0.1) 0%, rgba(53,197,197,0.04) 100%);
    padding:28px;
    border-radius:var(--radius-lg);
    border:1.5px solid rgba(53,197,197,0.15);
    margin-top:0;
    margin-bottom:8px;
    width:100%;
    box-sizing:border-box;
}
.simple-panel h3{
    margin:0 0 16px 0;
    color:#fff;
    font-size:1.15rem;
    font-weight:600;
    letter-spacing:0.3px;
}

/* Field error messages */
.field-error{
    color:#ff6b6b;
    font-size:0.84rem;
    margin-top:8px;
    display:none;
    line-height:1.5;
    font-weight:500;
    padding:8px 12px;
    background:rgba(255,107,107,0.1);
    border-left:3px solid #ff6b6b;
    border-radius:var(--radius-sm);
    animation:slideDown 0.2s ease;
}
@keyframes slideDown{
    from{opacity:0;transform:translateY(-8px)}
    to{opacity:1;transform:translateY(0)}
}


.simple-note{
    font-size:0.96rem;
    color:#b8d4d4;
    margin-top:12px;
    line-height:1.7;
    font-weight:300;
    word-break:break-word;
}
.form-row{display:flex;gap:16px;align-items:center;margin:10px 0}
.form-row label{min-width:120px;color:var(--muted)}
.form-row input[type="range"]{-webkit-appearance:none;appearance:none;height:8px;background:rgba(255,255,255,0.06);border-radius:var(--radius-sm);outline:none;flex:1}
.form-row input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);box-shadow:0 1px 2px rgba(0,0,0,0.4)}
.form-row select{padding:10px;border-radius:var(--radius-sm);background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.04);color:var(--muted)}
.form-row .actions{margin-top:12px}

/* Error message & button feedback */
.err-msg{color:#ff6b6b;margin-top:12px;font-weight:600;opacity:0;transform:translateY(-6px);transition:opacity .18s ease,transform .18s ease}
.err-msg.show{opacity:1;transform:translateY(0)}
.btn.shake{animation:shake .36s ease}
@keyframes shake{0%{transform:translateX(0)}20%{transform:translateX(-6px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(4px)}100%{transform:translateX(0)}}