:root{--bg-main: #fffafa;--bg-soft: #fff1f1;--bg-card: #ffffff;--text-main: #262626;--text-muted: #777;--accent-red: #c63b3b;--accent-green: #2f7d57;--accent-gold: #d6b25e;--border-soft: #eee;--shadow-soft: 0 6px 18px rgba(0, 0, 0, .06);--radius-sm: 8px;--radius-md: 14px;--max-width: 920px}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,sans-serif;background:radial-gradient(circle at top,#fff5f5,var(--bg-main));color:var(--text-main);line-height:1.6}a{color:inherit;text-decoration:none}.app-root{min-height:100vh;display:flex;flex-direction:column}.app-body{width:100%;max-width:var(--max-width);margin:0 auto;padding:1.5rem}.header-link{display:block}.header{display:flex;align-items:center;gap:.6rem;font-weight:600;font-size:1.2rem;padding:1.2rem 1.5rem;background:linear-gradient(90deg,#c63b3b14,#d6b25e14);border-bottom:1px solid var(--border-soft);color:#f74137}.header img{height:32px}footer{margin-top:auto;padding:1rem;text-align:center;font-size:.85rem;color:var(--text-muted)}footer a{color:var(--accent-red)}h1{font-size:1.6rem;margin:0 0 .6rem}h3{font-size:1.1rem;margin:0 0 .4rem}p{margin:.3rem 0;color:var(--text-muted)}button{border:none;border-radius:var(--radius-sm);padding:.5rem .9rem;font-size:.95rem;cursor:pointer;background:#f5dddd;color:var(--accent-red);transition:transform .05s ease,box-shadow .15s ease;-webkit-user-select:none;user-select:none}button:hover{box-shadow:var(--shadow-soft)}button:active{transform:scale(.97)}.create-list-btn{background:linear-gradient(135deg,var(--accent-red),var(--accent-gold));color:#fff;margin-top:1rem}input,select{width:100%;padding:.55rem .65rem;border-radius:var(--radius-sm);border:1px solid var(--border-soft);font-size:.95rem}input:focus,select:focus{outline:none;border-color:var(--accent-red)}.home-storage,.create-exchange,.exchange-show,.personal-link-show{margin-bottom:1.6rem}.stored-display{background:var(--bg-card);border-radius:var(--radius-md);padding:1.2rem;box-shadow:var(--shadow-soft)}.stored-display h3{color:#2f7d57}.stored-display button{margin:.3rem}.stored-exchange-item,.stored-personal-item{display:flex;justify-content:space-between;align-items:center;padding:.45rem .6rem;border-radius:var(--radius-sm);background:var(--bg-soft);margin-top:.4rem}.stored-exchange-select,.stored-personal-select{cursor:pointer}.stored-exchange-delete,.stored-personal-delete{cursor:pointer;color:var(--accent-red)}.create-list-explanation{color:var(--text-muted);margin-bottom:1rem}.create-list-name{margin-bottom:1rem}.people-inputs{background:var(--bg-card);border-radius:var(--radius-md);padding:1rem;box-shadow:var(--shadow-soft)}.people-inputs button{margin:.3rem}.add-remove-buttons{margin-bottom:.6rem}.name-input{margin-top:.4rem}.people-constraints{margin-top:1.2rem;padding:1rem;background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-soft)}.matrix-inputs-info{font-size:.85rem;color:var(--text-muted)}.constraint-input-group{display:flex;flex-wrap:wrap;gap:.4rem;margin:.4rem 0 .8rem}.constraint{background:var(--bg-soft);color:var(--accent-red);text-decoration:line-through;text-decoration-thickness:2px}.constraint-checked{background:#2f7d5733;color:var(--accent-green)}.error-msg{color:var(--accent-red);margin-top:.6rem;padding:.3rem;border:2px solid var(--accent-red);border-radius:10px}.general-error{color:var(--accent-red)}.exchange-view-name{color:#363636;font-size:3rem;font-weight:600}.exchange-view-date{color:var(--text-muted);margin-bottom:1rem}.exchange-view-date-small{font-size:.8rem}.link{background:var(--bg-soft);border-radius:var(--radius-sm);padding:.6rem;margin-bottom:.6rem}.giver-name{font-weight:600;color:var(--accent-green)}.receiver-name{font-weight:600;color:var(--accent-red)}.exchange-record{margin-top:1.2rem}.copy-box{display:flex;gap:.4rem;margin-top:.4rem}.copy-box input{flex:1}.copy-box img{max-height:30px;width:auto;-webkit-user-select:none;user-select:none;cursor:pointer}.show-exchange{margin-top:1.2rem;margin-bottom:2rem}.show-exchange-explanation{color:#aa0e0e;font-weight:700}.show-exchange-explanation:before{content:"⚠️ "}.show-exchange-explanation:after{content:" ⚠️"}.hidden-text{margin-top:.6rem;padding:.6rem;background:var(--bg-soft);border-radius:var(--radius-sm)}.givesto{background:var(--bg-card);padding:1.2rem;border-radius:var(--radius-md);box-shadow:var(--shadow-soft)}.givesto-title{font-weight:600}.givesto-people{margin:.6rem 0}.language-switcher{position:fixed;bottom:1rem;left:1rem}.empty{height:0px}.create-btn{display:block;margin-top:1rem}@media(max-width:600px){.language-switcher{position:static;margin:0rem auto 1rem;width:fit-content}}.timestamp-small{font-size:75%;color:#363636}.input-prompt-correction{border:2px solid #e5533d;background-color:#fff5f3;color:#8a1f14;outline:none}.input-prompt-correction::placeholder{color:#c56a5e;font-size:90%}.input-prompt-correction:focus{border-color:#d6452d;box-shadow:0 0 0 3px #d6452d33}.input-exchange-name::placeholder{font-size:90%}