:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f6f7fb;--panel:#fff;--line:#d8deea;--line-strong:#bcc7da;--text:#1d2636;--muted:#69758c;--accent:#1f7a5a;--accent-soft:#1f7a5a24;--accent-border:#2a9a72;--danger:#b53c46;--shadow:0 18px 40px #131f3814;font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{color:var(--text);background:radial-gradient(circle at 0 0,#2a9a7224,#0000 28%),linear-gradient(#fbfcff 0%,#f1f4fb 100%)}button,input,select{font:inherit}.sr-only{clip:rect(0, 0, 0, 0);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-shell{grid-template-rows:auto auto 1fr auto;gap:12px;height:100%;padding:16px;display:grid}.auth-shell{place-items:center;min-height:100%;padding:24px;display:grid}.auth-card{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffffff0;border:1px solid #d8deead9;border-radius:24px;gap:18px;width:min(460px,100vw - 32px);padding:28px;display:grid;box-shadow:0 24px 60px #0d152729}.auth-card__hero h1{margin:0 0 8px;font-size:34px}.auth-card__hero p{color:var(--muted);margin:0;line-height:1.5}.auth-card__switch{background:#eef2f8;border-radius:16px;grid-template-columns:1fr 1fr;gap:8px;padding:6px;display:grid}.auth-card__switch button{min-height:42px;color:var(--muted);background:0 0;border:0;border-radius:12px;font-weight:700}.auth-card__switch button.is-active{color:var(--text);background:#fff;box-shadow:0 10px 18px #0d152714}.auth-form{gap:14px;display:grid}.auth-form__field{gap:8px;display:grid}.auth-form__field span{font-size:14px;font-weight:600}.auth-form__field input{border:1px solid var(--line);background:#fff;border-radius:14px;min-height:46px;padding:0 14px}.password-field{grid-template-columns:1fr auto;gap:10px;display:grid}.password-field button,.auth-form__submit{border:1px solid var(--line);background:linear-gradient(#fff 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select:hover{border-color:var(--accent-border);transform:translateY(-1px);box-shadow:0 10px 18px #1f7a5a1f}.toolbar button:disabled{opacity:.45;cursor:not-allowed}.user-pill{color:#244479;background:#eef4ff;border:1px solid #2444791f;border-radius:999px;align-items:center;min-height:38px;padding:0 14px;font-weight:700;display:inline-flex}.file-name-input{min-width:220px;min-height:38px;color:var(--accent);background:#eef5f2;border:1px solid #1f7a5a29;border-radius:999px;padding:0 14px;font-weight:600}.file-name-input:focus{border-color:var(--accent-border);outline:2px solid #1f7a5a29}.formula-bar{grid-template-columns:120px 1fr;align-items:center;gap:10px;padding:10px 12px;display:grid}.formula-bar__label{color:#244479;background:#eef4ff;border-radius:12px;justify-content:center;align-items:center;min-height:42px;font-weight:700;display:flex}.formula-bar__input{border:1px solid var(--line);background:#fff;border-radius:12px;min-height:42px;padding:0 14px}.formula-bar__input:focus{border-color:#244479;outline:2px solid #24447929}.editor-panel{min-height:0;padding:14px}.sheet-grid{border:1px solid var(--line);background:var(--panel);border-radius:16px;grid-template-rows:34px 1fr 36px;grid-template-columns:56px 1fr;height:100%;min-height:620px;display:grid;overflow:hidden}.sheet-grid__corner{border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(#f3f6fb 0%,#e8edf7 100%)}.sheet-grid__columns,.sheet-grid__rows{background:linear-gradient(#f3f6fb 0%,#e8edf7 100%);position:relative;overflow:hidden}.sheet-grid__columns{border-bottom:1px solid var(--line)}.sheet-grid__rows{border-right:1px solid var(--line)}.sheet-grid__columns-canvas,.sheet-grid__rows-canvas{position:relative}.sheet-grid__column-header,.sheet-grid__row-header,.sheet-grid__cell{border-right:1px solid var(--line);border-bottom:1px solid var(--line);align-items:center;display:flex;position:absolute}.sheet-grid__column-header{color:#4d5d79;justify-content:center;height:34px;font-weight:700;top:0}.sheet-grid__row-header{color:#4d5d79;justify-content:center;width:56px;height:28px;font-size:13px;left:0}.sheet-grid__column-header.is-active,.sheet-grid__row-header.is-active{color:#244479;background:#2444791f}.sheet-grid__resize-handle{cursor:col-resize;background:0 0;border:0;width:10px;height:100%;padding:0;position:absolute;top:0;right:-5px}.sheet-grid__viewport{background:linear-gradient(#fffffff5,#fffffff5),linear-gradient(90deg,#1f7a5a05,#0000);position:relative;overflow:auto}.sheet-grid__viewport:focus{outline:none}.sheet-grid__canvas{position:relative}.sheet-grid__selection{border:2px solid var(--accent-border);background:var(--accent-soft);pointer-events:none;z-index:1;position:absolute}.sheet-grid__cell{white-space:nowrap;text-overflow:ellipsis;background:#fff;padding:0 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18px 38px #0e1c382e}.context-menu__title{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;padding:4px 8px 8px;font-size:12px}.context-menu__item{text-align:left;width:100%;min-height:38px;color:var(--text);background:0 0;border:0;border-radius:10px;padding:0 10px}.context-menu__item:hover:not(:disabled){background:#24447914}.context-menu__item--danger{color:var(--danger)}.toast{color:#fff;border-radius:14px;padding:12px 16px;font-weight:600;position:fixed;bottom:24px;right:24px;box-shadow:0 16px 30px #0d152738}.toast--info{background:#244479}.toast--success{background:#1f7a5a}.toast--error{background:#b53c46}.modal-overlay{z-index:40;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#10182847;place-items:center;display:grid;position:fixed;inset:0}.load-modal{background:#fffffffa;border:1px solid #d8deeae6;border-radius:20px;grid-template-rows:auto 1fr;width:min(760px,100vw - 32px);max-height:min(72vh,760px);display:grid;overflow:hidden;box-shadow:0 24px 60px #0d152738}.load-modal__header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:12px;padding:18px 20px;display:flex}.load-modal__header h2{margin:0 0 6px;font-size:20px}.load-modal__header p{color:var(--muted);margin:0}.load-modal__header button{border:1px solid var(--line);background:#fff;border-radius:12px;min-height:38px;padding:0 14px}.load-modal__body{gap:10px;padding:16px 20px 20px;display:grid;overflow:auto}.load-modal__empty{text-align:center;color:var(--muted);border:1px dashed var(--line-strong);background:#fbfcff;border-radius:16px;padding:28px 16px}.saved-file-row{grid-template-columns:1fr auto;align-items:center;gap:12px;width:100%;display:grid}.saved-file-row__main{border:1px solid var(--line);text-align:left;background:linear-gradient(#fff 0%,#f7faff 100%);border-radius:16px;grid-template-columns:1fr auto auto;align-items:center;gap:12px;width:100%;padding:14px 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p{color:var(--muted);margin:0;line-height:1.5}.confirm-modal__actions{flex-wrap:wrap;justify-content:flex-end;gap:10px;display:flex}.confirm-modal__actions button{border:1px solid var(--line);background:#fff;border-radius:12px;min-height:42px;padding:0 14px}@media (width<=1280px){.app-shell{padding:10px}.formula-bar{grid-template-columns:82px 1fr}.saved-file-row__main{grid-template-columns:1fr}}