:root{--bg:#f4f7fb;--surface:#fff;--surface-2:#eef3f9;--text:#142033;--muted:#657187;--border:#dce4ef;--primary:#4c5ce5;--primary-2:#7c4dff;--primary-soft:#eef0ff;--shadow:0 18px 45px rgba(37,54,84,.10);--radius:22px}
[data-theme="dark"]{--bg:#0e1420;--surface:#151d2b;--surface-2:#1d2737;--text:#edf3ff;--muted:#a3aec1;--border:#2b374a;--primary:#8190ff;--primary-2:#aa78ff;--primary-soft:#252b50;--shadow:0 18px 50px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.6}button,textarea,select,input{font:inherit}button{cursor:pointer}.container{width:min(1160px,calc(100% - 32px));margin:0 auto}.hidden{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header{position:sticky;top:0;z-index:20;backdrop-filter:blur(14px);background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid color-mix(in srgb,var(--border) 75%,transparent)}.header-inner,.footer-inner{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;color:var(--text);text-decoration:none;font-size:1.05rem}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 8px 22px color-mix(in srgb,var(--primary) 35%,transparent)}.icon-btn{width:42px;height:42px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--text)}
.hero{padding:72px 0 48px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:54px}.eyebrow,.step{margin:0 0 8px;color:var(--primary);font-size:.78rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}h1{max-width:760px;margin:0;font-size:clamp(2.6rem,6vw,5.4rem);line-height:.98;letter-spacing:-.055em}.hero-copy{max-width:660px;font-size:1.15rem;color:var(--muted);margin:24px 0}.privacy-pill{display:inline-flex;align-items:center;padding:9px 14px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:750;font-size:.9rem}.hero-card{min-height:320px;position:relative;border-radius:34px;background:linear-gradient(145deg,var(--primary),var(--primary-2));box-shadow:var(--shadow);transform:rotate(2deg);overflow:hidden}.hero-card:before{content:"";position:absolute;inset:26px;border-radius:22px;background:var(--surface)}.paper-lines,.summary-lines{position:absolute;left:56px;right:56px;height:9px;border-radius:9px;background:var(--border);box-shadow:0 24px 0 var(--border),0 48px 0 var(--border),0 72px 0 var(--border),0 96px 0 var(--border)}.paper-lines{top:68px}.summary-lines{top:218px;right:120px;background:var(--primary);box-shadow:0 24px 0 color-mix(in srgb,var(--primary) 70%,var(--border))}
.tool-section{padding:24px 0 38px}.tool-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(300px,.75fr);gap:24px;align-items:stretch}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.input-panel,.settings-panel,.result-panel{padding:26px}.panel-header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:20px}.panel-header h2,.info-section h2{margin:0;font-size:1.35rem;line-height:1.2}.text-btn{border:0;background:transparent;color:var(--primary);font-weight:750;padding:6px 0}textarea{width:100%;min-height:430px;resize:vertical;border:1px solid var(--border);border-radius:17px;background:var(--surface-2);color:var(--text);padding:20px;outline:none;transition:.2s ease}textarea:focus,select:focus,input[type="range"]:focus{border-color:var(--primary);box-shadow:0 0 0 4px color-mix(in srgb,var(--primary) 16%,transparent)}.input-footer{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:14px}.live-counts{display:flex;flex-wrap:wrap;gap:16px;color:var(--muted);font-size:.86rem}.file-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:12px;padding:9px 13px;font-weight:750;background:var(--surface-2)}.file-btn input{display:none}.control-group{margin:0 0 24px}.control-group>label:first-child{display:block;font-weight:750;margin-bottom:10px}.range-row{display:grid;grid-template-columns:1fr 62px;align-items:center;gap:14px}input[type="range"]{width:100%;accent-color:var(--primary)}output{text-align:center;font-weight:800;color:var(--primary);background:var(--primary-soft);border-radius:10px;padding:6px}.range-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:.78rem;margin-top:6px}select{width:100%;padding:12px 14px;color:var(--text);background:var(--surface-2);border:1px solid var(--border);border-radius:12px;outline:none}.checkbox-group{display:grid;gap:12px}.check-row{display:flex;gap:10px;align-items:center;color:var(--muted)}.check-row input{width:18px;height:18px;accent-color:var(--primary)}.primary-btn,.secondary-btn{border-radius:13px;font-weight:800;transition:.2s ease}.primary-btn{width:100%;border:0;padding:14px 18px;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 10px 24px color-mix(in srgb,var(--primary) 28%,transparent)}.primary-btn:hover{transform:translateY(-1px)}.secondary-btn{padding:10px 14px;border:1px solid var(--border);background:var(--surface-2);color:var(--text)}.small-note{margin:14px 0 0;color:var(--muted);font-size:.82rem}
.results-section{padding:18px 0 40px}.result-header{align-items:center}.action-row{display:flex;gap:10px;flex-wrap:wrap}.summary-output{background:var(--surface-2);border:1px solid var(--border);border-radius:17px;padding:22px;min-height:150px;white-space:pre-wrap;font-size:1.04rem}.summary-output ul{margin:0;padding-left:22px}.summary-output li+li{margin-top:10px}.keywords-block{margin-top:24px}.keywords-block h3{margin:0 0 12px;font-size:1rem}.keyword-list{display:flex;flex-wrap:wrap;gap:9px}.keyword{background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:7px 11px;font-weight:750;font-size:.85rem}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}.stat-card{padding:16px;border:1px solid var(--border);border-radius:15px;background:var(--surface)}.stat-card span{display:block;color:var(--muted);font-size:.78rem;margin-bottom:4px}.stat-card strong{font-size:1.2rem}
.info-section{padding:38px 0 76px}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.info-grid article{padding:24px;border-radius:18px;background:var(--surface);border:1px solid var(--border)}.info-grid p{color:var(--muted);margin-bottom:0}.site-footer{border-top:1px solid var(--border);color:var(--muted);font-size:.88rem}.toast{position:fixed;right:22px;bottom:22px;z-index:50;background:var(--text);color:var(--surface);padding:11px 15px;border-radius:12px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s ease}.toast.show{opacity:1;transform:translateY(0)}
@media(max-width:900px){.hero-grid,.tool-grid{grid-template-columns:1fr}.hero-card{display:none}.stats-grid{grid-template-columns:repeat(2,1fr)}.info-grid{grid-template-columns:1fr}}@media(max-width:620px){.hero{padding-top:48px}.input-panel,.settings-panel,.result-panel{padding:18px}textarea{min-height:360px}.input-footer,.result-header,.footer-inner{align-items:flex-start;flex-direction:column}.stats-grid{grid-template-columns:1fr 1fr}.action-row,.action-row button{width:100%}}