:root{--bg: #f0f4f8;--card: #ffffff;--text: #2d3748;--text-muted: #718096;--accent: #6c63ff;--accent-light: #e8e6ff;--border: #e2e8f0;--shadow: 0 4px 24px rgba(108, 99, 255, .08);--radius: 16px;font-family:Segoe UI,ui-sans-serif,system-ui,-apple-system,sans-serif;line-height:1.6;color-scheme:light}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:var(--bg);color:var(--text)}#root{display:flex;flex-direction:column;align-items:center;padding:2rem 1rem 4rem}.header{text-align:center;margin-bottom:2rem}.header h1{font-size:2.2rem;font-weight:700;background:linear-gradient(135deg,#6c63ff,#48c9b0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.25rem}.header p{color:var(--text-muted);font-size:1rem}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:2rem;width:100%;max-width:520px;margin-bottom:1.5rem}.card h2{font-size:1.1rem;font-weight:600;margin-bottom:1rem;color:var(--text)}.mood-grid{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap;margin-bottom:1.25rem}.mood-btn{font-size:2rem;width:56px;height:56px;border-radius:50%;border:2px solid transparent;background:var(--bg);cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.mood-btn:hover{transform:scale(1.15);border-color:var(--accent);background:var(--accent-light)}.mood-btn.selected{border-color:var(--accent);background:var(--accent-light);transform:scale(1.15);box-shadow:0 0 0 3px #6c63ff33}.note-input{width:100%;padding:.85rem 1rem;border:1px solid var(--border);border-radius:12px;font-size:.95rem;font-family:inherit;resize:vertical;min-height:70px;transition:border-color .2s;background:var(--bg);color:var(--text)}.note-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #6c63ff1f}.note-input::placeholder{color:var(--text-muted)}.save-btn{width:100%;padding:.85rem;border:none;border-radius:12px;background:linear-gradient(135deg,#6c63ff,#48c9b0);color:#fff;font-size:1rem;font-weight:600;font-family:inherit;cursor:pointer;margin-top:1rem;transition:opacity .2s,transform .15s}.save-btn:hover{opacity:.9;transform:translateY(-1px)}.save-btn:active{transform:translateY(0)}.save-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.toast{position:fixed;top:1.5rem;left:50%;transform:translate(-50%) translateY(-120%);background:#48c9b0;color:#fff;padding:.65rem 1.5rem;border-radius:100px;font-weight:600;font-size:.9rem;box-shadow:0 8px 24px #48c9b04d;transition:transform .35s cubic-bezier(.34,1.56,.64,1);z-index:100;pointer-events:none}.toast.visible{transform:translate(-50%) translateY(0)}.history-list{display:flex;flex-direction:column;gap:.75rem}.history-item{display:flex;align-items:flex-start;gap:.85rem;padding:1rem;border-radius:12px;background:var(--bg);transition:background .2s}.history-item:hover{background:var(--accent-light)}.history-emoji{font-size:1.6rem;flex-shrink:0;line-height:1;margin-top:2px}.history-body{flex:1;min-width:0}.history-date{font-size:.78rem;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.04em;margin-bottom:.15rem}.history-note{font-size:.92rem;color:var(--text);word-break:break-word}.history-note.empty{color:var(--text-muted);font-style:italic}.history-delete{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1.1rem;padding:.2rem;border-radius:6px;transition:color .2s,background .2s;flex-shrink:0}.history-delete:hover{color:#e53e3e;background:#e53e3e14}.empty-state{text-align:center;padding:2rem 1rem;color:var(--text-muted);font-size:.95rem}.empty-state span{display:block;font-size:2.5rem;margin-bottom:.5rem}.stats{display:flex;gap:.75rem;margin-bottom:1.5rem}.stat-box{flex:1;text-align:center;padding:.85rem .5rem;border-radius:12px;background:var(--bg)}.stat-value{font-size:1.6rem;font-weight:700;background:linear-gradient(135deg,#6c63ff,#48c9b0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);font-weight:600}.today-badge{display:inline-block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;background:linear-gradient(135deg,#6c63ff,#48c9b0);color:#fff;padding:.2rem .6rem;border-radius:100px;margin-left:.5rem;vertical-align:middle}