:root {
  --bg:#f5f7fb; --surface:#fff; --surface-2:#f8f9fc; --text:#151b2d; --muted:#687086;
  --line:#e1e5ee; --accent:#5b61f6; --accent-2:#7c3aed; --accent-soft:#f1f1ff;
  --success:#067647; --success-bg:#ecfdf3; --warning:#b54708; --warning-bg:#fffaeb;
  --danger:#b42318; --danger-bg:#fff2f0; --shadow:0 22px 60px rgba(26,34,58,.09);
}
*{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;color:var(--text);background:linear-gradient(180deg,#fcfdff 0%,var(--bg) 100%)}
a{color:inherit;text-decoration:none} button,input,select{font:inherit}.container{width:min(1180px,calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(252,253,255,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(225,229,238,.85)}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;font-size:1.18rem;letter-spacing:-.02em}.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent-2));font-size:.82rem;font-weight:900;box-shadow:0 9px 24px rgba(91,97,246,.24)}
.nav-links{display:flex;gap:22px;align-items:center;color:var(--muted);font-size:.93rem}.nav-links a:hover{color:var(--text)}
.hero{padding:82px 0 36px;text-align:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);color:#474ecb;border:1px solid #dfe1ff;border-radius:999px;padding:8px 12px;font-weight:750;font-size:.84rem}.hero h1{margin:18px auto 15px;max-width:900px;font-size:clamp(2.7rem,6vw,5.4rem);line-height:.96;letter-spacing:-.06em}.hero p{margin:0 auto;max-width:760px;color:var(--muted);font-size:clamp(1rem,2vw,1.24rem);line-height:1.72}.trust-row{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:22px}.trust-pill{padding:8px 11px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#4d566d;font-size:.82rem}
.tool-shell{margin:28px auto 78px;background:var(--surface);border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow);padding:24px}.tool-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(310px,.75fr);gap:24px;align-items:start}
.dropzone{min-height:390px;border:2px dashed #cfd7e6;border-radius:24px;background:linear-gradient(180deg,#fbfcff,#f6f8fc);display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;position:relative;overflow:hidden;transition:.2s ease;cursor:pointer}.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:#f5f4ff}.dropzone.dragover{transform:translateY(-2px)}.dropzone.has-image{padding:0;border-style:solid;cursor:default}.dropzone img{width:100%;height:100%;min-height:390px;max-height:550px;object-fit:contain;background:#eef1f6;display:block}.dropzone img[hidden]{display:none}.upload-cta{max-width:440px}.upload-icon{width:68px;height:68px;border-radius:22px;background:#eef0ff;color:var(--accent);display:grid;place-items:center;margin:0 auto 16px;font-size:1.8rem;font-weight:850}.upload-cta h2{margin:0 0 8px;font-size:1.5rem}.upload-cta p{margin:0 0 19px;color:var(--muted);line-height:1.65}.image-actions{display:none;gap:8px;justify-content:flex-end;margin-top:12px}.image-actions.show{display:flex}
.btn{border:0;border-radius:14px;padding:12px 17px;cursor:pointer;font-weight:780;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.18s ease}.btn:hover{transform:translateY(-1px)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent-2));box-shadow:0 10px 22px rgba(91,97,246,.19)}.btn-secondary{background:var(--surface-2);color:var(--text);border:1px solid var(--line)}.btn-ghost{background:#fff;border:1px solid var(--line);color:#475467}.btn-block{width:100%}
.control-card{border:1px solid var(--line);border-radius:22px;padding:20px;background:#fff}.control-card h3{margin:0 0 6px;font-size:1.08rem}.control-card>p{margin:0 0 18px;color:var(--muted);font-size:.91rem;line-height:1.55}.preset-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:18px}.preset{border:1px solid var(--line);border-radius:14px;background:#fff;padding:12px;text-align:left;cursor:pointer;min-height:70px;transition:.15s}.preset:hover{border-color:#bfc4ff}.preset strong{display:block;font-size:.92rem;margin-bottom:4px}.preset span{color:var(--muted);font-size:.79rem}.preset.active{border-color:var(--accent);background:#f3f2ff;box-shadow:0 0 0 2px rgba(91,97,246,.07) inset}.preset-note{margin:-5px 0 13px;color:var(--muted);font-size:.78rem;line-height:1.5}
.field{margin-top:14px}.field label{display:block;font-size:.82rem;font-weight:730;margin-bottom:7px}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.field input,.field select{width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 12px;background:#fff;color:var(--text);outline:none}.field input:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,97,246,.1)}.range-line{display:flex;align-items:center;gap:12px}.range-line input{padding:0}.range-value{min-width:44px;text-align:right;color:var(--muted);font-size:.84rem}.actions{display:grid;grid-template-columns:1fr;gap:10px;margin-top:18px}
.private-note{display:flex;gap:10px;align-items:flex-start;margin-top:16px;color:var(--muted);background:#f7faf8;border:1px solid #d9eee2;border-radius:14px;padding:12px;font-size:.82rem;line-height:1.5}.private-note strong{color:var(--success)}.meta-strip{display:none;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.meta-strip.show{display:grid}.meta-item{background:#f8f9fc;border:1px solid var(--line);border-radius:12px;padding:10px;min-width:0}.meta-item span{display:block;color:var(--muted);font-size:.71rem;margin-bottom:3px}.meta-item strong{font-size:.84rem;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.status{display:none;margin-top:12px;border-radius:12px;padding:10px 12px;font-size:.83rem;line-height:1.5}.status.show{display:block}.status.error{background:var(--danger-bg);color:var(--danger);border:1px solid #fecdca}.status.ok{background:var(--success-bg);color:var(--success);border:1px solid #abefc6}.status.warn{background:var(--warning-bg);color:var(--warning);border:1px solid #fedf89}
.results{display:none;margin-top:28px;border-top:1px solid var(--line);padding-top:25px}.results.show{display:block}.results-header{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}.results-header h2{margin:0}.results-header p{margin:5px 0 0;color:var(--muted);font-size:.9rem}.result-actions{display:flex;gap:8px}.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.result-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}.result-preview{aspect-ratio:16/10;background:#eef1f6;display:grid;place-items:center;overflow:hidden}.result-preview img{width:100%;height:100%;object-fit:contain}.result-body{padding:14px}.result-body h3{margin:0 0 5px;font-size:.96rem}.result-body p{margin:0 0 12px;color:var(--muted);font-size:.79rem;line-height:1.5}
.section{padding:64px 0}.section-head{max-width:760px;margin-bottom:30px}.section-head h2{margin:0 0 10px;font-size:clamp(1.9rem,4vw,3.1rem);letter-spacing:-.04em}.section-head p{margin:0;color:var(--muted);line-height:1.72}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}.feature .icon{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:#f0f1ff;margin-bottom:15px;font-weight:800}.feature h3{margin:0 0 8px;font-size:1.03rem}.feature p{margin:0;color:var(--muted);line-height:1.62;font-size:.92rem}.tool-links{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tool-link{background:#fff;border:1px solid var(--line);border-radius:18px;padding:19px;transition:.15s}.tool-link:hover{transform:translateY(-2px);border-color:#c5c8ff;box-shadow:0 14px 30px rgba(26,34,58,.06)}.tool-link strong{display:block;margin-bottom:5px}.tool-link span{color:var(--muted);font-size:.84rem;line-height:1.5}.info-band{background:#171a2b;color:#fff;border-radius:26px;padding:34px;display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}.info-band p{color:#c9ccda;line-height:1.7}.info-band ul{margin:0;padding-left:18px;color:#e6e8f0;line-height:1.9}
.page-hero{padding:64px 0 24px}.page-hero h1{font-size:clamp(2.2rem,5vw,4.2rem);letter-spacing:-.045em;margin:12px 0 14px}.page-hero p{max-width:780px;color:var(--muted);line-height:1.72;font-size:1.06rem}.content-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;margin:18px 0}.content-card h2,.content-card h3{margin-top:0}.content-card p,.content-card li{color:#4f5b70;line-height:1.76}.content-card a{text-decoration:underline;text-decoration-color:#cbd0ff;text-underline-offset:3px}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.mini-note{background:#f8f9fc;border:1px solid var(--line);border-radius:14px;padding:14px;color:var(--muted);font-size:.86rem;line-height:1.55}
.site-footer{border-top:1px solid var(--line);margin-top:60px;padding:34px 0 42px;color:var(--muted);font-size:.87rem}.footer-row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-links{display:flex;gap:18px;flex-wrap:wrap}
@media(max-width:1000px){.tool-grid,.info-band{grid-template-columns:1fr}.tool-links{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.feature-grid,.result-grid,.content-grid{grid-template-columns:1fr 1fr}.nav-links{display:none}}
@media(max-width:620px){.container{width:min(100% - 20px,1180px)}.hero{padding-top:52px}.tool-shell{padding:12px;border-radius:20px}.dropzone,.dropzone img{min-height:300px}.preset-grid,.field-row,.feature-grid,.result-grid,.content-grid,.tool-links{grid-template-columns:1fr}.meta-strip{grid-template-columns:1fr}.results-header{align-items:flex-start;flex-direction:column}.result-actions{width:100%}.result-actions .btn{flex:1}}