*{box-sizing:border-box}
:root{
  color-scheme:dark;
  --bg:#0b0f12;
  --surface:#11171b;
  --surface-raised:#151e22;
  --ink:#edf3f2;
  --muted:#a0aeac;
  --line:#2a373a;
  --accent:#79dfce;
  --accent-strong:#47c8b4;
  --good:#8fe0aa;
  --warn:#f2c078;
  --content:1040px;
}
html{scroll-behavior:smooth;background:var(--bg);scroll-padding-top:24px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:3px}
a:hover{color:#b5f5eb}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.site-header{background:#0b0f12;border-bottom:1px solid var(--line)}
.nav-wrap,.footer-wrap{max-width:var(--content);margin:auto;padding:17px 28px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;font-weight:720;letter-spacing:-.02em;white-space:nowrap}
.brand-mark{display:grid;place-items:center;width:33px;height:33px;border-radius:7px;background:var(--accent);color:#08201c;font-size:12px;font-weight:850;letter-spacing:-.04em}
.main-nav,.site-footer nav{display:flex;flex-wrap:wrap;align-items:center;gap:9px 22px}
.main-nav a,.site-footer nav a{font-size:.9rem;text-decoration:none;color:var(--muted)}
.main-nav a:hover,.site-footer nav a:hover{color:var(--ink)}
.container{max-width:var(--content);margin:auto;padding:54px 28px 84px}
.hero{text-align:left;margin:0 0 31px;max-width:790px}
.eyebrow{margin:0 0 15px;font-size:.72rem;letter-spacing:.13em;font-weight:800;color:var(--accent);text-transform:uppercase}
h1{max-width:800px;font-size:clamp(2.45rem,5.7vw,4.1rem);line-height:1.04;letter-spacing:-.055em;margin:0 0 20px;font-weight:760}
.lead{font-size:1.08rem;line-height:1.75;color:var(--muted);max-width:690px;margin:0}
.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px;box-shadow:none}
.drop-zone{display:flex;flex-direction:column;align-items:center;text-align:center;gap:7px;border:1px dashed #526368;border-radius:9px;padding:34px 16px;background:#0d1316;cursor:pointer;transition:background .16s,border-color .16s}
.drop-zone:hover,.drop-zone.over{background:#101e20;border-color:var(--accent)}
.drop-zone strong{font-size:1.05rem;font-weight:690;letter-spacing:-.01em}
.upload-icon{display:grid;place-items:center;width:42px;height:42px;border:1px solid #36534f;border-radius:9px;background:#13211f;color:var(--accent);font-size:1.65rem;line-height:1}
.drop-hint,.field-help{font-size:.84rem;color:var(--muted)}
.drop-zone input{max-width:230px;margin-top:9px;color:var(--muted);font:inherit;font-size:.85rem}
.settings{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:24px 0 12px}
.field label{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-weight:680;font-size:.88rem}
.field input[type=range]{width:100%;accent-color:var(--accent);margin:13px 0}
.field select{width:100%;min-height:43px;padding:9px 11px;border:1px solid #3a494c;border-radius:7px;background:#0c1215;color:var(--ink);font:inherit;font-size:.9rem}
.field select:hover{border-color:#687d7e}
.field-help{margin:7px 0 0;line-height:1.45}
.status-row{font-size:.88rem;color:var(--muted);padding:15px 0 5px}
.results-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:17px}
.total{font-weight:700;margin:0}
.button-group{display:flex;gap:9px;flex-wrap:wrap}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:41px;border:1px solid var(--accent);border-radius:7px;padding:9px 14px;background:var(--accent);color:#09211c;text-decoration:none;font:inherit;font-size:.91rem;font-weight:760;cursor:pointer;transition:background .14s,border-color .14s,color .14s}
.button:hover{background:#a2f0e2;border-color:#a2f0e2;color:#071b17}
.button-secondary{background:transparent;color:var(--accent)}
.button-secondary:hover{background:#182725;border-color:var(--accent);color:#b5f5eb}
.image-list{display:grid;gap:9px;margin-top:14px}
.image-row{display:grid;grid-template-columns:54px minmax(0,1fr) auto;align-items:center;gap:13px;padding:11px;border:1px solid var(--line);border-radius:8px;background:#0d1316}
.image-row img{width:54px;height:54px;object-fit:cover;border-radius:5px;background:var(--bg)}
.filename{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:680;color:var(--ink)}
.sizes{font-size:.83rem;color:var(--muted)}
.saving{color:var(--good);font-weight:750}
.saving.bad{color:var(--warn)}
.error-message{color:var(--warn)}
[hidden]{display:none!important}
.trust-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin:26px 0 60px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-strip>div{padding:17px 20px 17px 0;background:transparent;border:0;border-radius:0}
.trust-strip>div+div{padding-left:20px;border-left:1px solid var(--line)}
.trust-strip strong{font-size:.88rem;font-weight:720;color:var(--ink)}
.trust-strip p{margin:4px 0 0;color:var(--muted);font-size:.84rem;line-height:1.5}
.content-section{margin:60px 0}
.content-section h2,.cta-panel h2{font-size:clamp(1.55rem,3vw,2.05rem);line-height:1.2;letter-spacing:-.04em;margin:0 0 17px;font-weight:730}
.content-section h3{margin:26px 0 5px;font-size:1.05rem;letter-spacing:-.015em}
.content-section p,.page-content p,.page-content li{color:#b8c4c1}
.content-section p{max-width:790px}
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:24px}
.guide-card{padding:17px 0 0;background:transparent;border:0;border-top:1px solid var(--line);border-radius:0;box-shadow:none}
.guide-card h3{margin:0 0 9px;font-size:1.02rem}
.guide-card p{font-size:.91rem;line-height:1.65;margin:0 0 13px}
.text-link{font-size:.88rem;font-weight:720;text-decoration:none}
.faq-section details{border-bottom:1px solid var(--line);padding:16px 0}
.faq-section details:first-of-type{border-top:1px solid var(--line)}
.faq-section summary{font-weight:680;cursor:pointer;color:var(--ink);list-style-position:outside}
.faq-section details p{margin:10px 0 0;max-width:760px}
.cta-panel{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:27px 29px;background:var(--surface-raised);border:1px solid var(--line);border-radius:10px}
.cta-panel h2{margin:0 0 8px;font-size:1.45rem}
.cta-panel p{margin:0;color:var(--muted);font-size:.94rem}
.site-footer{background:#080c0e;border-top:1px solid var(--line)}
.footer-wrap{display:block;padding-top:30px;padding-bottom:30px}
.footer-wrap>p,.footer-wrap small{color:var(--muted);font-size:.84rem}
.footer-wrap nav{margin:18px 0}
.page-content{max-width:800px;margin:0 auto;padding:56px 28px 80px}
.page-content h1{font-size:clamp(2.2rem,5vw,3.2rem);margin-bottom:23px}
.page-content h2{margin-top:33px;font-size:1.35rem;letter-spacing:-.025em}
.page-content .updated{font-size:.85rem;color:var(--muted)}
.page-content li{margin:.45rem 0}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:760px){
  .nav-wrap{align-items:flex-start;flex-direction:column;gap:13px;padding:15px 20px}
  .main-nav{gap:9px 16px}
  .container{padding:39px 20px 60px}
  .hero{margin-bottom:25px}
  h1{font-size:clamp(2.3rem,9vw,3.3rem)}
  .tool-card{padding:15px}
  .settings,.guide-grid,.trust-strip{grid-template-columns:1fr}
  .settings{gap:20px}
  .trust-strip{margin:25px 0 45px}
  .trust-strip>div,.trust-strip>div+div{padding:14px 0;border-left:0}
  .trust-strip>div+div{border-top:1px solid var(--line)}
  .content-section{margin:46px 0}
  .cta-panel{align-items:flex-start;flex-direction:column;padding:21px}
  .image-row{grid-template-columns:46px minmax(0,1fr);gap:10px}
  .image-row img{width:46px;height:46px}
  .image-row .button{grid-column:1/-1;text-align:center}
  .footer-wrap{padding-left:20px;padding-right:20px}
  .page-content{padding:42px 20px 60px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}

.target-controls{display:grid;grid-template-columns:minmax(0,1fr) minmax(190px,230px);align-items:center;gap:20px;margin-top:12px;padding:18px 0 4px;border-top:1px solid var(--line)}
.target-toggle{display:flex;align-items:flex-start;gap:12px;cursor:pointer}
.target-toggle input{flex:0 0 auto;width:17px;height:17px;margin:4px 0 0;accent-color:var(--accent)}
.target-toggle-copy{display:flex;flex-direction:column;gap:3px}
.target-toggle-copy strong{font-size:.93rem;font-weight:720}
.target-toggle-copy small{max-width:390px;color:var(--muted);font-size:.84rem;line-height:1.5}
.target-input-wrap>label{display:block;margin-bottom:7px;font-size:.87rem;font-weight:680}
.target-input-row{display:flex;align-items:center;gap:8px}
.target-input-row input{width:100%;min-width:0;min-height:42px;padding:8px 10px;border:1px solid #3a494c;border-radius:7px;background:#0c1215;color:var(--ink);font:inherit}
.target-input-row input:disabled{opacity:.5;cursor:not-allowed}
.target-input-row span{color:var(--muted);font-size:.88rem}
.target-input-wrap .field-help{font-size:.78rem}
.field-muted{opacity:.58}
.target-result{display:inline-block;margin-left:7px;margin-right:7px;color:var(--good);font-weight:700}
.target-result-warn{color:var(--warn)}
.size-guide-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px;margin-top:23px}
.size-guide-links a{display:flex;flex-direction:column;gap:5px;padding:14px 0 0;border-top:1px solid var(--line);color:var(--ink);text-decoration:none}
.size-guide-links a:hover{border-color:var(--accent);color:var(--accent)}
.size-guide-links strong{font-size:.92rem;font-weight:700}
.size-guide-links span{color:var(--muted);font-size:.81rem;line-height:1.45}
@media(max-width:760px){
  .target-controls{grid-template-columns:1fr;gap:14px}
  .target-input-wrap{max-width:240px}
  .size-guide-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
}
@media(max-width:420px){.size-guide-links{grid-template-columns:1fr}}