:root{--bg: #080810;--aurora-1: rgb(59 130 246 / 18%);--aurora-2: rgb(139 92 246 / 16%);--aurora-3: rgb(236 72 153 / 12%);--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--text-faint: #475569;--surface: rgb(255 255 255 / 4%);--surface-hover: rgb(255 255 255 / 7%);--surface-input: rgb(255 255 255 / 3%);--border: rgb(255 255 255 / 9%);--border-soft: rgb(255 255 255 / 6%);--header-bg: rgb(8 8 16 / 70%);--card-shadow: 0 1px 0 rgb(255 255 255 / 6%) inset, 0 24px 50px rgb(0 0 0 / 40%);--accent-blue: #60a5fa;--accent-blue-strong: #3b82f6;--accent-purple: #c084fc;--accent-pink: #f472b6;--placeholder: #475569;color-scheme:dark;font-family:Inter,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.5;background:var(--bg);color:var(--text-primary)}:root[data-theme=light]{--bg: #f6f7fb;--aurora-1: rgb(59 130 246 / 14%);--aurora-2: rgb(139 92 246 / 12%);--aurora-3: rgb(236 72 153 / 9%);--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--text-faint: #94a3b8;--surface: rgb(255 255 255 / 72%);--surface-hover: rgb(255 255 255 / 92%);--surface-input: rgb(255 255 255 / 70%);--border: rgb(15 23 42 / 10%);--border-soft: rgb(15 23 42 / 7%);--header-bg: rgb(246 247 251 / 80%);--card-shadow: 0 1px 0 rgb(255 255 255 / 70%) inset, 0 18px 40px rgb(15 23 42 / 10%);--accent-blue: #2563eb;--accent-blue-strong: #1d4ed8;--accent-purple: #7c3aed;--accent-pink: #db2777;--placeholder: #94a3b8;color-scheme:light}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;transition-duration:.001ms!important}}.layout{position:relative;display:grid;grid-template-rows:auto 1fr auto;min-height:100vh;background:var(--bg);overflow:hidden}.aurora{position:fixed;inset:-20% -10% auto -10%;height:70vh;z-index:0;pointer-events:none;background:radial-gradient(ellipse 50% 60% at 12% 0%,var(--aurora-1),transparent 60%),radial-gradient(ellipse 45% 55% at 88% 8%,var(--aurora-2),transparent 60%),radial-gradient(ellipse 60% 50% at 50% 40%,var(--aurora-3),transparent 65%);filter:blur(20px);animation:aurora-drift 18s ease-in-out infinite alternate}@keyframes aurora-drift{0%{transform:translate3d(-2%,-1%,0) scale(1)}to{transform:translate3d(3%,2%,0) scale(1.08)}}.site-header{position:sticky;top:0;z-index:10;border-bottom:1px solid var(--border-soft);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:var(--header-bg)}.site-header__inner{max-width:1000px;margin:0 auto;padding:.9rem 1.25rem;display:flex;align-items:center;justify-content:space-between}.wordmark{display:flex;align-items:center;gap:.4rem;-webkit-user-select:none;user-select:none}.wordmark__icon{color:var(--accent-blue);font-size:1.15rem}.wordmark__name{font-size:1rem;font-weight:700;color:var(--text-primary);letter-spacing:-.01em}.wordmark__product{font-size:.8rem;font-weight:500;color:var(--accent-purple);background:#8b5cf62e;border:1px solid rgb(139 92 246 / 30%);border-radius:999px;padding:.15rem .55rem;letter-spacing:.03em}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;border-radius:.75rem;border:1px solid var(--border);background:var(--surface);color:var(--text-secondary);font-size:1.1rem;cursor:pointer;transition:background .18s ease,color .18s ease,transform .15s ease}.theme-toggle:hover{background:var(--surface-hover);color:var(--text-primary)}.theme-toggle:active{transform:scale(.94)}.page{position:relative;z-index:1;max-width:1000px;width:100%;margin:0 auto;padding:3rem 1.25rem 4rem;display:grid;gap:1.5rem}.hero{text-align:center;padding:1rem 0 .5rem;animation:rise-in .5s ease both}.hero__title{font-size:clamp(2.4rem,5.5vw,3.6rem);font-weight:800;letter-spacing:-.03em;line-height:1.08;color:var(--text-primary);margin-bottom:1rem}.hero__title--gradient{background:linear-gradient(135deg,var(--accent-blue) 0%,var(--accent-purple) 50%,var(--accent-pink) 100%);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero__subtitle{color:var(--text-secondary);font-size:1.1rem;max-width:44rem;margin:0 auto;line-height:1.65}.glass-card{background:var(--surface);border:1px solid var(--border);border-radius:1.25rem;padding:1.5rem;-webkit-backdrop-filter:blur(28px);backdrop-filter:blur(28px);box-shadow:var(--card-shadow);animation:rise-in .5s ease both}@keyframes rise-in{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}.editor-card{display:grid;gap:1.1rem}.editor-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}.editor-header__title{font-size:.875rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.07em}.editor-actions{display:flex;gap:.5rem}.glass-input{width:100%;padding:1rem 1.1rem;border-radius:1rem;border:1px solid var(--border);background:var(--surface-input);color:var(--text-primary);font:inherit;font-size:1rem;resize:vertical;transition:border-color .2s ease,box-shadow .2s ease}.textarea{min-height:200px;line-height:1.7}.glass-input:focus{outline:none;border-color:#60a5fa7f;box-shadow:0 0 0 3px #3b82f61f}.glass-input::placeholder{color:var(--placeholder)}.text-stats{display:flex;align-items:center;gap:.5rem;font-size:.8rem;color:var(--text-muted);flex-wrap:wrap}.text-stats__item strong{color:var(--text-secondary);font-variant-numeric:tabular-nums}.text-stats__divider{opacity:.5}.tone-picker{display:grid;gap:.65rem}.tone-label{font-size:.8rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.07em}.tone-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem}@media(min-width:600px){.tone-grid{grid-template-columns:repeat(6,1fr)}}.tone-pill{display:flex;flex-direction:column;align-items:center;gap:.3rem;padding:.7rem .5rem;border-radius:.85rem;border:1px solid var(--border);background:var(--surface-input);cursor:pointer;transition:background .18s ease,border-color .18s ease,transform .15s ease;text-align:center}.tone-pill:hover{background:var(--surface-hover);transform:translateY(-1px)}.tone-pill:active{transform:scale(.97)}.tone-pill--active{background:linear-gradient(135deg,#3b82f638,#8b5cf62e);border-color:#60a5fa73;box-shadow:0 0 0 1px #60a5fa33,0 6px 20px #3b82f626}.tone-pill__emoji{font-size:1.25rem;line-height:1}.tone-pill__text{display:flex;flex-direction:column;gap:.1rem}.tone-pill__name{font-size:.8rem;font-weight:600;color:var(--text-primary)}.tone-pill__desc{font-size:.67rem;color:var(--text-muted);line-height:1.3}.tone-pill--active .tone-pill__name{color:var(--accent-blue)}.tone-pill--active .tone-pill__desc{color:var(--accent-blue);opacity:.8}.editor-footer{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-top:.85rem;border-top:1px solid var(--border-soft)}.editor-footer__actions{display:flex;align-items:center;gap:.75rem}.char-count{font-size:.8rem;color:var(--text-faint);font-variant-numeric:tabular-nums}.char-count--over{color:#fb7185;font-weight:600}.shortcut-hint{font-size:.7rem;color:var(--text-muted);border:1px solid var(--border);border-radius:.5rem;padding:.2rem .45rem;font-family:inherit}.inline-warning{margin-top:-.25rem;font-size:.85rem;color:#fb7185}.primary-button{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:.875rem;border:1px solid rgb(96 165 250 / 35%);background:linear-gradient(135deg,#3b82f673,#8b5cf661);color:#eff6ff;font:inherit;font-weight:700;font-size:.9375rem;cursor:pointer;box-shadow:0 8px 25px #3b82f633,0 1px #ffffff1a inset;transition:transform .15s ease,box-shadow .15s ease,opacity .15s ease}.primary-button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 12px 32px #3b82f647,0 1px #ffffff1a inset}.primary-button:active:not(:disabled){transform:scale(.98)}.primary-button:disabled{opacity:.45;cursor:not-allowed}.ghost-button{padding:.45rem .9rem;border-radius:.7rem;border:1px solid transparent;background:transparent;color:var(--text-muted);font:inherit;font-size:.875rem;font-weight:500;cursor:pointer;transition:color .15s ease,background .15s ease}.ghost-button:hover:not(:disabled){color:var(--text-primary);background:var(--surface-hover)}.ghost-button:disabled{opacity:.45;cursor:not-allowed}.ghost-button--icon{color:var(--accent-blue);font-weight:600}.ghost-button--icon:hover:not(:disabled){color:var(--accent-blue);background:#3b82f61a}.spinner{display:inline-block;width:.875rem;height:.875rem;border:2px solid rgb(255 255 255 / 25%);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.alert{display:flex;align-items:center;gap:.75rem}.alert--error{border-color:#f43f5e59;background:#f43f5e14}.alert__icon{font-size:1rem;color:#fb7185;flex-shrink:0}.alert__text{color:#fb7185;line-height:1.6;font-size:.9375rem;flex:1}.results-grid{display:grid;gap:1rem;align-items:start}@media(min-width:860px){.results-grid{grid-template-columns:1fr 320px}}.result-card{height:fit-content}.result-sidebar{display:grid;gap:1rem}.result-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:.9rem}.result-sidebar__title{font-size:.8rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.07em}.result-actions{display:flex;gap:.25rem;flex-wrap:wrap}.view-toggle{display:inline-flex;padding:.2rem;gap:.2rem;border-radius:.7rem;border:1px solid var(--border);background:var(--surface-input)}.view-toggle__option{padding:.35rem .85rem;border:none;border-radius:.5rem;background:transparent;color:var(--text-muted);font:inherit;font-size:.8rem;font-weight:600;cursor:pointer;transition:background .15s ease,color .15s ease}.view-toggle__option--active{background:linear-gradient(135deg,#3b82f64d,#8b5cf63d);color:var(--text-primary)}.result-text{line-height:1.75;color:var(--text-primary);font-size:1rem;white-space:pre-wrap;word-break:break-word}.diff-segment--equal{color:var(--text-primary)}.diff-segment--added{background:#10b9812e;color:#34d399;border-radius:.25rem;padding:0 .1rem}:root[data-theme=light] .diff-segment--added{color:#047857}.diff-segment--removed{background:#f43f5e24;color:#fb7185;text-decoration:line-through;text-decoration-thickness:1px;border-radius:.25rem;padding:0 .1rem}:root[data-theme=light] .diff-segment--removed{color:#be123c}.summary-text{margin-top:.75rem;line-height:1.65;color:var(--text-secondary);font-size:.9rem}.stats-row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.stat-pill{padding:.9rem 1rem;border-radius:1rem;display:grid;gap:.3rem}.stat-pill__label{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;opacity:.75}.stat-pill__value{font-size:1rem;font-weight:700}.stat-pill--green{background:#10b9811f;border:1px solid rgb(16 185 129 / 25%);color:#059669}:root:not([data-theme=light]) .stat-pill--green{color:#6ee7b7}.stat-pill--purple{background:#8b5cf61f;border:1px solid rgb(139 92 246 / 25%);color:#7c3aed}:root:not([data-theme=light]) .stat-pill--purple{color:#ddd6fe}.site-footer{position:relative;z-index:1;border-top:1px solid var(--border-soft);text-align:center;padding:1.5rem 1.25rem;font-size:.8rem;color:var(--text-faint)}