*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #080808;--bg2: #0f0f0f;--bg3: #161616;--bg4: #1e1e1e;--border: rgba(255,255,255,.06);--border2: rgba(255,255,255,.12);--accent: #c8f135;--accent-dim: rgba(200,241,53,.1);--accent-glow: rgba(200,241,53,.2);--text: #f0f0f0;--text2: #888;--text3: #444;--red: #ff4444;--display: "Bebas Neue", sans-serif;--sans: "DM Sans", sans-serif;--mono: "JetBrains Mono", monospace;--ease: cubic-bezier(.16, 1, .3, 1)}html{scroll-behavior:smooth}body{font-family:var(--sans);background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:3px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}::selection{background:var(--accent);color:#000}button{cursor:pointer;font-family:var(--sans)}input,textarea{font-family:var(--sans)}.cursor-glow{width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(200,241,53,.04) 0%,transparent 70%);position:fixed;pointer-events:none;transform:translate(-50%,-50%);z-index:0;transition:opacity .3s}.app{display:flex;height:100vh;overflow:hidden;position:relative}.sidebar{width:280px;flex-shrink:0;border-right:1px solid var(--border);display:flex;flex-direction:column;height:100vh;background:var(--bg);position:relative;z-index:2}.sidebar-logo{padding:24px 20px 20px;border-bottom:1px solid var(--border);display:flex;align-items:baseline;gap:8px}.logo-text{font-family:var(--display);font-size:32px;letter-spacing:.04em;color:var(--text);line-height:1}.logo-ai{font-family:var(--display);font-size:14px;color:var(--accent);letter-spacing:.1em;border:1px solid var(--accent);padding:1px 6px;border-radius:3px}.sidebar-search{padding:12px 16px;border-bottom:1px solid var(--border)}.search-input-wrap{position:relative}.search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--text3);font-size:14px;pointer-events:none}.search-input{width:100%;background:var(--bg3);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:12px;padding:7px 10px 7px 30px;outline:none;transition:border-color .2s}.search-input:focus{border-color:var(--accent)}.search-input::placeholder{color:var(--text3)}.sidebar-actions{padding:10px 16px;border-bottom:1px solid var(--border)}.btn-new-note{width:100%;background:var(--accent);color:#000;border:none;border-radius:6px;font-size:12px;font-weight:500;padding:9px 14px;display:flex;align-items:center;justify-content:center;gap:6px;letter-spacing:.03em;transition:all .2s var(--ease)}.btn-new-note:hover{background:#d4f840;transform:translateY(-1px);box-shadow:0 4px 20px var(--accent-glow)}.sidebar-tags{padding:12px 16px;border-bottom:1px solid var(--border)}.sidebar-section-label{font-size:10px;font-weight:500;color:var(--text3);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}.tag-list{display:flex;flex-wrap:wrap;gap:4px}.tag-chip{font-size:11px;padding:3px 8px;border-radius:100px;border:1px solid var(--border2);color:var(--text2);background:transparent;cursor:pointer;transition:all .15s;font-family:var(--mono)}.tag-chip:hover,.tag-chip.active{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}.notes-list{flex:1;overflow-y:auto;padding:8px 0}.note-card{padding:12px 16px;cursor:pointer;border-bottom:1px solid var(--border);transition:background .15s;position:relative;overflow:hidden}.note-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--accent);transform:scaleY(0);transition:transform .2s var(--ease);transform-origin:bottom}.note-card:hover:before,.note-card.active:before{transform:scaleY(1)}.note-card:hover,.note-card.active{background:var(--bg2)}.note-card-title{font-size:13px;font-weight:500;color:var(--text);margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:6px}.pin-icon{color:var(--accent);font-size:10px}.note-card-preview{font-size:11px;color:var(--text2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:6px;line-height:1.4}.note-card-meta{display:flex;align-items:center;justify-content:space-between}.note-card-date{font-family:var(--mono);font-size:10px;color:var(--text3)}.note-card-tags{display:flex;gap:3px}.note-card-tag{font-size:9px;padding:1px 5px;border-radius:3px;background:var(--bg4);color:var(--text3);font-family:var(--mono)}.main{flex:1;display:flex;flex-direction:column;overflow:hidden;position:relative;z-index:1}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text3)}.empty-display{font-family:var(--display);font-size:96px;letter-spacing:.02em;color:var(--bg3);line-height:1;-webkit-user-select:none;user-select:none}.empty-sub{font-size:13px;color:var(--text3)}.editor{flex:1;display:flex;flex-direction:column;overflow:hidden}.editor-topbar{display:flex;align-items:center;gap:10px;padding:16px 28px;border-bottom:1px solid var(--border);flex-shrink:0}.editor-topbar-actions{display:flex;align-items:center;gap:6px;margin-left:auto}.btn-icon{width:32px;height:32px;background:var(--bg3);border:1px solid var(--border);border-radius:6px;color:var(--text2);display:flex;align-items:center;justify-content:center;font-size:14px;transition:all .15s}.btn-icon:hover{background:var(--bg4);border-color:var(--border2);color:var(--text)}.btn-icon.danger:hover{border-color:var(--red);color:var(--red);background:#ff444414}.btn-icon.accent:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}.btn-save{background:var(--accent);color:#000;border:none;border-radius:6px;font-size:12px;font-weight:500;padding:7px 16px;letter-spacing:.03em;transition:all .2s var(--ease)}.btn-save:hover{background:#d4f840;box-shadow:0 2px 16px var(--accent-glow)}.btn-save:disabled{opacity:.5;cursor:not-allowed}.editor-title-input{width:100%;background:transparent;border:none;outline:none;font-family:var(--display);font-size:48px;letter-spacing:.02em;color:var(--text);line-height:1.1;padding:24px 28px 8px;resize:none;flex-shrink:0}.editor-title-input::placeholder{color:var(--text3)}.editor-tags-bar{display:flex;align-items:center;gap:6px;padding:0 28px 12px;flex-wrap:wrap;flex-shrink:0;border-bottom:1px solid var(--border)}.editor-tag{font-size:11px;padding:3px 10px;border-radius:100px;background:var(--bg3);border:1px solid var(--border2);color:var(--text2);font-family:var(--mono);display:flex;align-items:center;gap:5px;cursor:default}.editor-tag-remove{background:none;border:none;color:var(--text3);font-size:12px;padding:0;cursor:pointer;line-height:1;transition:color .1s}.editor-tag-remove:hover{color:var(--red)}.tag-add-input{background:transparent;border:none;outline:none;font-size:11px;font-family:var(--mono);color:var(--text2);width:80px}.tag-add-input::placeholder{color:var(--text3)}.editor-content{flex:1;overflow-y:auto;padding:20px 28px 40px}.editor-textarea{width:100%;min-height:100%;background:transparent;border:none;outline:none;font-size:15px;color:var(--text);line-height:1.8;resize:none;font-family:var(--sans);font-weight:300}.editor-textarea::placeholder{color:var(--text3)}.ai-panel{width:340px;border-left:1px solid var(--border);display:flex;flex-direction:column;background:var(--bg);overflow:hidden;flex-shrink:0;transition:width .3s var(--ease)}.ai-panel.collapsed{width:0;overflow:hidden}.ai-panel-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.ai-panel-title{font-family:var(--display);font-size:20px;letter-spacing:.04em;color:var(--text);display:flex;align-items:center;gap:8px}.ai-badge{font-size:9px;padding:2px 6px;border-radius:3px;background:var(--accent);color:#000;font-family:var(--mono);font-weight:500;letter-spacing:.06em}.ai-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:14px;border-bottom:1px solid var(--border);flex-shrink:0}.ai-action-btn{background:var(--bg3);border:1px solid var(--border);border-radius:6px;color:var(--text2);font-size:11px;font-weight:500;padding:9px 10px;display:flex;flex-direction:column;align-items:center;gap:4px;transition:all .2s var(--ease);letter-spacing:.02em;text-align:center}.ai-action-btn:hover:not(:disabled){background:var(--bg4);border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.ai-action-btn:disabled{opacity:.4;cursor:not-allowed}.ai-action-btn .btn-emoji{font-size:18px}.ai-output{flex:1;overflow-y:auto;padding:14px}.ai-result-block{background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:14px;margin-bottom:10px;animation:fadeSlideIn .3s var(--ease)}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.ai-result-label{font-size:10px;font-weight:500;color:var(--accent);letter-spacing:.1em;text-transform:uppercase;font-family:var(--mono);margin-bottom:8px;display:flex;align-items:center;gap:6px}.ai-result-text{font-size:13px;color:var(--text2);line-height:1.7}.flashcard{border:1px solid var(--border2);border-radius:6px;margin-bottom:8px;overflow:hidden}.flashcard-q{padding:10px 12px;background:var(--bg4);font-size:12px;font-weight:500;color:var(--text);border-bottom:1px solid var(--border)}.flashcard-a{padding:10px 12px;font-size:12px;color:var(--text2);line-height:1.5}.quiz-question{font-size:13px;font-weight:500;color:var(--text);margin-bottom:10px;line-height:1.5}.quiz-options{display:flex;flex-direction:column;gap:5px}.quiz-option{background:var(--bg4);border:1px solid var(--border);border-radius:5px;padding:8px 12px;font-size:12px;color:var(--text2);cursor:pointer;transition:all .15s;text-align:left}.quiz-option:hover{border-color:var(--accent);color:var(--accent)}.quiz-option.correct{border-color:#4ade80;color:#4ade80;background:#4ade8014}.quiz-option.wrong{border-color:var(--red);color:var(--red);background:#ff444414}.quiz-explanation{margin-top:10px;font-size:11px;color:var(--text2);padding:8px 10px;background:var(--bg4);border-radius:5px;border-left:2px solid var(--accent)}.ai-loading{display:flex;align-items:center;gap:8px;padding:14px;color:var(--text3);font-size:12px}.spinner{width:14px;height:14px;border:1.5px solid var(--border2);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%) translateY(20px);background:var(--bg4);border:1px solid var(--border2);color:var(--text);font-size:12px;padding:8px 16px;border-radius:6px;opacity:0;pointer-events:none;transition:all .25s var(--ease);z-index:999;white-space:nowrap}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.toast.success{border-color:#4ade80;color:#4ade80}.toast.error{border-color:var(--red);color:var(--red)}.marquee-wrap{overflow:hidden;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:6px 0;background:var(--bg2);flex-shrink:0}.marquee-inner{display:flex;gap:48px;animation:marquee 20s linear infinite;width:max-content}.marquee-item{font-family:var(--display);font-size:11px;letter-spacing:.15em;color:var(--text3);white-space:nowrap;display:flex;align-items:center;gap:48px}.marquee-dot{width:3px;height:3px;border-radius:50%;background:var(--accent);display:inline-block}@keyframes marquee{0%{transform:translate(0)}to{transform:translate(-50%)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.note-card{animation:fadeUp .2s var(--ease) both}
