:root{--bg-primary:#0a0817;--bg-secondary:#110d29;--text-primary:#f0ecff;--text-secondary:#b0a6d1;--accent-cyan:#00f0ff;--accent-purple:#bd00ff;--accent-pink:#ff007a;--color-delta:#00c3ff;--color-theta:#00ffaa;--color-alpha:#ffea00;--color-beta:#ff7700;--color-gamma:#ff0055;--glass-bg:rgba(255,255,255,0.04);--glass-border:rgba(255,255,255,0.08);--glass-glow:rgba(189,0,255,0.15);--font-heading:'Outfit','Outfit-fallback',sans-serif;--font-body:'Inter','Inter-fallback',sans-serif;--transition-smooth:all 0.3s cubic-bezier(0.4,0,0.2,1)}@font-face{font-family:'Inter-fallback';src:local('Arial');size-adjust:107%;ascent-override:90%;descent-override:22%;line-gap-override:0%}@font-face{font-family:'Outfit-fallback';src:local('Arial');size-adjust:110%;ascent-override:100%;descent-override:25%;line-gap-override:0%}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-body);min-height:100vh;overflow-x:hidden;position:relative;line-height:1.6}.stars-bg{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-2;background-image:radial-gradient(1px 1px at 20px 30px,#fff,rgba(0,0,0,0)),radial-gradient(1.5px 1.5px at 150px 80px,#fff,rgba(0,0,0,0)),radial-gradient(2px 2px at 300px 300px,rgba(255,255,255,0.8),rgba(0,0,0,0)),radial-gradient(1px 1px at 450px 150px,#fff,rgba(0,0,0,0)),radial-gradient(2px 2px at 600px 400px,rgba(255,255,255,0.5),rgba(0,0,0,0)),radial-gradient(1.5px 1.5px at 750px 250px,#fff,rgba(0,0,0,0)),radial-gradient(1px 1px at 900px 100px,#fff,rgba(0,0,0,0));background-size:1000px 1000px;opacity:0.3}.aurora-bg{position:fixed;top:-50%;left:-50%;width:200%;height:200%;z-index:-1;background:radial-gradient(circle at 30% 30%,rgba(189,0,255,0.12) 0%,transparent 40%),radial-gradient(circle at 70% 60%,rgba(0,240,255,0.1) 0%,transparent 45%),radial-gradient(circle at 50% 40%,rgba(255,0,122,0.06) 0%,transparent 35%);filter:blur(80px);animation:rotateAurora 120s infinite linear}@keyframes rotateAurora{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}.app-container{width:100%;max-width:1300px;margin:0 auto;padding:2.5rem 1.5rem;display:flex;flex-direction:column;gap:2.5rem}.app-header{text-align:center;margin-bottom:0.5rem}.logo-area{display:flex;align-items:center;justify-content:center;gap:1rem;margin-bottom:0.5rem}.logo-icon{font-size:2.5rem;color:var(--accent-cyan);filter:drop-shadow(0 0 10px rgba(0,240,255,0.5))}.animate-spin-slow{animation:spin 20s infinite linear}@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}.app-header h1{font-family:var(--font-heading);font-weight:800;font-size:3rem;letter-spacing:-1px}.gradient-text{background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple),var(--accent-pink));-webkit-background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 2px 10px rgba(189,0,255,0.3))}.subtitle{color:var(--text-secondary);font-size:1.1rem;font-weight:300;letter-spacing:0.5px}.glass-panel{background:var(--glass-bg);border:1px solid var(--glass-border);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:20px;padding:2rem;box-shadow:0 10px 40px rgba(0,0,0,0.5),inset 0 1px 0 rgba(255,255,255,0.05);transition:var(--transition-smooth)}.glass-panel:hover{border-color:rgba(255,255,255,0.15);box-shadow:0 15px 50px rgba(0,0,0,0.6),0 0 30px var(--glass-glow),inset 0 1px 0 rgba(255,255,255,0.08)}.section-header{margin-bottom:1.5rem}.section-header h2{font-family:var(--font-heading);font-size:1.6rem;font-weight:700;margin-bottom:0.25rem;display:flex;align-items:center;gap:0.75rem}.section-header h2 i{color:var(--accent-cyan)}.section-header p{color:var(--text-secondary);font-size:0.95rem}.presets-section{width:100%;margin-bottom:1rem}.presets-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem}.loading-placeholder{grid-column:1 / -1;text-align:center;padding:3rem;color:var(--text-secondary);font-style:italic;background:var(--glass-bg);border:1px dashed var(--glass-border);border-radius:15px}.preset-card{background:rgba(255,255,255,0.02);border:1px solid var(--glass-border);border-radius:16px;padding:1.25rem;cursor:pointer;position:relative;overflow:hidden;display:flex;flex-direction:column;gap:0.75rem;transition:var(--transition-smooth)}.preset-card::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:var(--card-theme-color,var(--accent-purple));transition:var(--transition-smooth)}.preset-card:hover{background:rgba(255,255,255,0.06);transform:translateY(-4px);border-color:rgba(255,255,255,0.2);box-shadow:0 8px 25px rgba(0,0,0,0.4),0 0 15px rgba(255,255,255,0.05)}.preset-card.active{background:rgba(189,0,255,0.08);border-color:var(--card-theme-color,var(--accent-purple));box-shadow:0 8px 30px rgba(189,0,255,0.15),inset 0 0 10px rgba(189,0,255,0.1)}.preset-card-header{display:flex;justify-content:space-between;align-items:flex-start}.preset-title{font-family:var(--font-heading);font-size:1.15rem;font-weight:700;text-transform:capitalize;color:var(--text-primary)}.preset-wave-badge{font-size:0.7rem;font-weight:700;text-transform:uppercase;padding:0.2rem 0.6rem;border-radius:20px;letter-spacing:0.5px;background:rgba(255,255,255,0.05);color:var(--card-theme-color,var(--text-primary));border:1px solid var(--card-theme-color,var(--glass-border))}.preset-frequencies{display:flex;gap:1rem;font-size:0.85rem;color:var(--text-secondary)}.preset-freq-item strong{color:var(--text-primary);font-family:var(--font-heading)}.preset-effects{font-size:0.8rem;color:var(--text-secondary);display:flex;flex-wrap:wrap;gap:0.4rem;margin-top:auto}.effect-pill{background:rgba(255,255,255,0.04);padding:0.15rem 0.5rem;border-radius:4px;border:1px solid rgba(255,255,255,0.03)}.main-workspace{display:grid;grid-template-columns:1.1fr 0.9fr;gap:2rem}@media (max-width:968px){.main-workspace{grid-template-columns:1fr}}.panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;border-bottom:1px solid rgba(255,255,255,0.05);padding-bottom:1rem}.panel-header h2{font-family:var(--font-heading);font-size:1.4rem;font-weight:700;display:flex;align-items:center;gap:0.6rem}.audio-state-badge{display:flex;align-items:center;gap:0.5rem;font-size:0.8rem;background:rgba(255,255,255,0.03);padding:0.3rem 0.8rem;border-radius:20px;border:1px solid rgba(255,255,255,0.05)}.status-dot{width:8px;height:8px;border-radius:50%;background-color:#888;box-shadow:0 0 8px #888}.audio-state-badge.playing .status-dot{background-color:var(--accent-cyan);box-shadow:0 0 10px var(--accent-cyan);animation:pulseGlow 1.5s infinite alternate}@keyframes pulseGlow{from{opacity:0.5}to{opacity:1}}.control-group{margin-bottom:1.75rem}.control-group.half-width{flex:1;margin-bottom:0}.row-controls{display:flex;gap:1.5rem;margin-bottom:2rem}@media (max-width:480px){.row-controls{flex-direction:column;gap:1.5rem}}.control-label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.6rem}label{font-size:0.95rem;font-weight:500;color:var(--text-secondary);display:flex;align-items:center;gap:0.5rem}label i{color:var(--accent-purple)}.value-display{font-family:var(--font-heading);font-weight:700;font-size:1.1rem;color:var(--text-primary)}.highlight-value{color:var(--accent-cyan);display:flex;align-items:center;gap:0.5rem}.wave-tag{font-size:0.75rem;padding:0.15rem 0.5rem;border-radius:4px;font-weight:700;color:#000}.wave-tag.delta{background:var(--color-delta);color:#fff}.wave-tag.theta{background:var(--color-theta)}.wave-tag.alpha{background:var(--color-alpha)}.wave-tag.beta{background:var(--color-beta);color:#fff}.wave-tag.gamma{background:var(--color-gamma);color:#fff}.premium-slider{-webkit-appearance:none;appearance:none;width:100%;height:8px;border-radius:4px;background:rgba(255,255,255,0.08);outline:none;transition:var(--transition-smooth)}.premium-slider::-webkit-slider-runnable-track{width:100%;height:8px;cursor:pointer}.premium-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:#fff;cursor:pointer;box-shadow:0 0 10px rgba(0,0,0,0.5),0 0 0 4px rgba(189,0,255,0.3);margin-top:-6px;transition:var(--transition-smooth)}.premium-slider::-webkit-slider-thumb:hover{background:var(--accent-cyan);box-shadow:0 0 15px var(--accent-cyan),0 0 0 6px rgba(0,240,255,0.4)}.premium-slider::-webkit-slider-thumb:active{transform:scale(1.1)}.slider-ticks{display:flex;justify-content:space-between;margin-top:0.4rem;font-size:0.75rem;color:rgba(255,255,255,0.4)}.premium-select{width:100%;background:rgba(255,255,255,0.05);border:1px solid var(--glass-border);color:var(--text-primary);padding:0.75rem 1rem;border-radius:12px;outline:none;font-family:var(--font-body);font-size:0.95rem;cursor:pointer;transition:var(--transition-smooth)}.premium-select:hover,.premium-select:focus{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.25)}.premium-select option{background:var(--bg-secondary);color:var(--text-primary);padding:10px}.visualizer-actions{display:flex;gap:0.5rem}.premium-select.compact{padding:0.4rem 0.75rem;font-size:0.8rem;border-radius:8px;width:auto}.playback-container{margin-bottom:2.25rem}.play-button{width:100%;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));border:none;color:#fff;padding:1.1rem;border-radius:16px;font-family:var(--font-heading);font-weight:700;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:0.75rem;box-shadow:0 8px 25px rgba(189,0,255,0.3);transition:var(--transition-smooth)}.play-button:hover{background:linear-gradient(135deg,#00ffff,#d500ff);transform:translateY(-2px);box-shadow:0 12px 30px rgba(189,0,255,0.45),0 0 20px rgba(0,240,255,0.3)}.play-button:active{transform:translateY(1px)}.play-button.active{background:linear-gradient(135deg,var(--accent-pink),var(--accent-purple));box-shadow:0 8px 25px rgba(255,0,122,0.3)}.export-box{background:rgba(255,255,255,0.02);border:1px solid var(--glass-border);border-radius:16px;padding:1.25rem;margin-top:1rem}.export-box h3{font-family:var(--font-heading);font-size:1.05rem;font-weight:700;margin-bottom:0.25rem;display:flex;align-items:center;gap:0.5rem}.export-box h3 i{color:var(--accent-cyan)}.export-note{font-size:0.8rem;color:var(--text-secondary);margin-bottom:1rem}.export-controls-row{display:flex;gap:0.75rem}.duration-select-wrapper{flex:1.2}.export-btn{flex:1;border:none;color:#fff;font-weight:600;padding:0.75rem 1rem;border-radius:12px;cursor:pointer;font-family:var(--font-heading);display:flex;align-items:center;justify-content:center;gap:0.4rem;transition:var(--transition-smooth)}.wav-btn{background:rgba(0,240,255,0.15);border:1px solid rgba(0,240,255,0.3)}.wav-btn:hover{background:rgba(0,240,255,0.25);border-color:var(--accent-cyan);box-shadow:0 0 15px rgba(0,240,255,0.25)}.mp3-btn{background:rgba(255,0,122,0.15);border:1px solid rgba(255,0,122,0.3)}.mp3-btn:hover{background:rgba(255,0,122,0.25);border-color:var(--accent-pink);box-shadow:0 0 15px rgba(255,0,122,0.25)}.export-btn:disabled,.premium-select:disabled{opacity:0.4;cursor:not-allowed}.progress-container{margin-top:1rem;display:none}.progress-bar-label{display:flex;justify-content:space-between;font-size:0.75rem;color:var(--text-secondary);margin-bottom:0.3rem}.progress-track{width:100%;height:6px;background:rgba(255,255,255,0.08);border-radius:3px;overflow:hidden}.progress-fill{width:0%;height:100%;background:linear-gradient(90deg,var(--accent-cyan),var(--accent-purple));border-radius:3px;transition:width 0.1s ease}.canvas-wrapper{position:relative;width:100%;max-width:500px;aspect-ratio:1 / 1;background:radial-gradient(circle,rgba(255,255,255,0.01) 0%,rgba(0,0,0,0.3) 100%);border-radius:50%;border:1px solid rgba(255,255,255,0.03);overflow:hidden;margin:0 auto 1.5rem auto;box-shadow:inset 0 0 40px rgba(0,0,0,0.6)}#spinnerCanvas{position:absolute;top:0;left:0;width:100%;height:100%}.spinner-center-gaze{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:10px;height:10px;background-color:#fff;border-radius:50%;box-shadow:0 0 15px #fff,0 0 30px var(--accent-cyan);pointer-events:none;z-index:5;animation:floatGaze 4s infinite ease-in-out}@keyframes floatGaze{0%,100%{transform:translate(-50%,-50%) scale(1);opacity:0.8}50%{transform:translate(-50%,-50%) scale(1.3);opacity:1}}.frequency-indicator-row{display:flex;justify-content:space-between;gap:1rem}.freq-tag{flex:1;background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.05);border-radius:12px;padding:0.6rem;display:flex;flex-direction:column;align-items:center;transition:var(--transition-smooth)}.freq-tag-label{font-size:0.75rem;color:var(--text-secondary);margin-bottom:0.2rem}.freq-tag-value{font-family:var(--font-heading);font-weight:700;font-size:1.15rem;color:var(--text-primary)}.freq-tag:hover{border-color:rgba(255,255,255,0.12);background:rgba(255,255,255,0.04)}.center-freq-tag .freq-tag-value{color:var(--accent-cyan);text-shadow:0 0 8px rgba(0,240,255,0.4)}.seo-article{margin-top:1rem}.seo-article h2{font-family:var(--font-heading);font-weight:700;font-size:1.8rem;margin-bottom:1.5rem;background:linear-gradient(90deg,#fff,var(--text-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.article-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem}@media (max-width:768px){.article-grid{grid-template-columns:1fr;gap:1.5rem}}.article-col h3{font-family:var(--font-heading);font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-bottom:0.75rem}.article-col p{color:var(--text-secondary);margin-bottom:1rem;font-size:0.95rem}.waves-explanation-list{list-style-type:none}.waves-explanation-list li{margin-bottom:0.75rem;color:var(--text-secondary);font-size:0.9rem}.article-steps-list{padding-left:1.2rem;color:var(--text-secondary);font-size:0.92rem}.article-steps-list li{margin-bottom:0.75rem;line-height:1.6}.wave-name{font-family:var(--font-heading);font-weight:700;display:inline-block;width:110px}.wave-name.delta{color:var(--color-delta)}.wave-name.theta{color:var(--color-theta)}.wave-name.alpha{color:var(--color-alpha)}.wave-name.beta{color:var(--color-beta)}.wave-name.gamma{color:var(--color-gamma)}.article-tip-box{margin-top:1.5rem;background:rgba(0,240,255,0.03);border:1px solid rgba(0,240,255,0.1);border-radius:12px;padding:1.25rem}.article-tip-box h3{font-family:var(--font-heading);font-size:1.05rem;font-weight:700;color:var(--accent-cyan);margin-bottom:0.5rem;display:flex;align-items:center;gap:0.5rem}.article-tip-box p{color:var(--text-secondary);font-size:0.9rem;margin:0}.app-footer{text-align:center;color:rgba(255,255,255,0.3);font-size:0.8rem;border-top:1px solid rgba(255,255,255,0.05);padding-top:1.5rem;margin-top:1rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}@media (max-width:480px){.app-container{padding:1.5rem 0.75rem;gap:1.75rem}.app-header h1{font-size:1.75rem;letter-spacing:-0.5px}.logo-area{gap:0.6rem}.logo-icon{font-size:1.8rem}.subtitle{font-size:0.9rem}.section-header h2{font-size:1.25rem;gap:0.5rem}.section-header p{font-size:0.85rem}.presets-grid{grid-template-columns:1fr;gap:1rem}.preset-card{padding:1.25rem 1.1rem;gap:0.6rem;border-radius:14px}.preset-title{font-size:1.2rem}.preset-wave-badge{font-size:0.72rem;padding:0.25rem 0.65rem}.preset-frequencies{font-size:0.9rem;gap:0.75rem}.preset-effects{font-size:0.82rem;gap:0.35rem}.effect-pill{padding:0.2rem 0.55rem}.glass-panel{padding:1.25rem 1rem;border-radius:16px}.panel-header{flex-direction:column;align-items:flex-start;gap:0.75rem;margin-bottom:1.5rem;padding-bottom:0.75rem}.panel-header h2{font-size:1.2rem}.control-group{margin-bottom:1.25rem}.control-label-row{flex-wrap:wrap;gap:0.25rem}label{font-size:0.88rem}.value-display{font-size:1rem}.premium-slider{height:10px}.premium-slider::-webkit-slider-thumb{width:24px;height:24px;margin-top:-7px}.slider-ticks{font-size:0.65rem}.slider-ticks span:nth-child(2){display:none}.play-button{padding:1rem;font-size:1.1rem;border-radius:14px}.export-box{padding:1rem}.export-controls-row{flex-direction:column;gap:0.6rem}.duration-select-wrapper{flex:unset;width:100%}.export-btn{width:100%;padding:0.85rem}.visualizer-actions{flex-wrap:wrap;gap:0.4rem;width:100%}.premium-select.compact{flex:1;min-width:0;font-size:0.75rem;padding:0.4rem 0.5rem}.canvas-wrapper{max-width:85vw;margin:0 auto 1rem auto}.frequency-indicator-row{flex-direction:column;gap:0.5rem}.freq-tag{flex-direction:row;justify-content:space-between;align-items:center;padding:0.6rem 0.8rem;border-radius:10px}.freq-tag-label{margin-bottom:0;font-size:0.8rem}.freq-tag-value{font-size:1.05rem}.seo-article h2{font-size:1.35rem}.article-col h3{font-size:1.1rem}.article-col p{font-size:0.88rem}.waves-explanation-list li{font-size:0.85rem}.wave-name{width:auto;display:block;margin-bottom:0.15rem}.article-tip-box{padding:1rem}.article-tip-box h3{font-size:0.95rem}.article-tip-box p{font-size:0.85rem}.app-footer{font-size:0.75rem;padding-top:1rem}}@media (max-width:360px){.app-container{padding:1.25rem 0.5rem}.app-header h1{font-size:1.5rem}.logo-icon{font-size:1.5rem}.glass-panel{padding:1rem 0.75rem}.preset-card{padding:1rem 0.9rem}.preset-title{font-size:1.1rem}.panel-header h2{font-size:1.1rem}.control-label-row{flex-direction:column;align-items:flex-start;gap:0.2rem}.premium-select.compact{font-size:0.7rem}.freq-tag{padding:0.5rem 0.65rem}}