:root{
  --navy:#071b33;
  --navy-2:#0c2c52;
  --blue:#2587e8;
  --blue-soft:#eaf4ff;
  --sky:#f5faff;
  --text:#132033;
  --muted:#66758a;
  --border:#dce7f2;
  --green:#159364;
  --green-soft:#e9f8f2;
  --white:#fff;
  --danger:#b42318;
  --danger-soft:#fff1ef;
  --shadow:0 20px 55px rgba(7,27,51,.10);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
button,input,select{font:inherit}
button,a{touch-action:manipulation}
img{max-width:100%;display:block}
a{color:inherit}
.hidden{display:none!important}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.narrow{width:min(1040px,calc(100% - 40px))}
.skip-link{position:absolute;left:-9999px;top:12px;background:#fff;padding:10px 14px;border-radius:8px;z-index:999}.skip-link:focus{left:12px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);border-bottom:1px solid rgba(220,231,242,.9);backdrop-filter:blur(16px)}
.nav-wrap{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;text-decoration:none;gap:12px;min-width:0}.brand-logo{width:120px;height:auto;object-fit:contain}.brand-fallback{display:none;align-items:baseline;font-size:27px;letter-spacing:-1.6px;line-height:1;color:var(--navy)}.brand-fallback strong{font-weight:800}.brand-fallback span{font-weight:500}.brand-label{border-left:1px solid var(--border);padding-left:12px;color:#5c6c81;font-size:12px;font-weight:700;letter-spacing:.03em;white-space:nowrap}
.nav-links{display:flex;gap:28px;align-items:center;font-size:14px;font-weight:650}.nav-links a{text-decoration:none;color:#36465b}.nav-links a:hover{color:var(--blue)}.nav-cta{background:var(--navy);color:#fff!important;padding:10px 16px;border-radius:11px}
.hero{background:linear-gradient(180deg,#f5faff 0%,#fff 100%);padding:76px 0 98px;border-bottom:1px solid #edf3f8}.hero-inner{text-align:center;max-width:850px}.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid #cfe4fa;background:#fff;color:#315d87;padding:7px 12px;border-radius:99px;font-size:13px;font-weight:700}.dot{width:7px;height:7px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px rgba(37,135,232,.10)}
h1{font-size:clamp(40px,6vw,70px);line-height:1.03;letter-spacing:-.055em;margin:20px 0;color:var(--navy)}.hero-copy{font-size:clamp(17px,2vw,21px);max-width:740px;margin:0 auto;color:#5f7188}.hero-copy strong{color:var(--navy)}.privacy-pill{margin:25px auto 0;display:flex;align-items:center;justify-content:center;gap:8px;color:#517086;font-size:13px}.privacy-pill svg{width:17px;fill:var(--green)}
.tool-section{margin-top:-58px;padding-bottom:80px;position:relative;z-index:2}.tool-shell{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:26px;align-items:start}.tool-main{background:#fff;border:1px solid var(--border);border-radius:28px;box-shadow:var(--shadow);padding:26px}.upload-card{border:2px dashed #b9d3ec;border-radius:22px;background:linear-gradient(180deg,#fbfdff,#f6faff);min-height:420px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:36px;transition:.2s ease;cursor:pointer;outline:none}.upload-card:hover,.upload-card.dragover,.upload-card:focus-visible{border-color:var(--blue);background:#f1f8ff;transform:translateY(-1px)}.upload-icon{width:68px;height:68px;border-radius:20px;background:var(--blue-soft);display:grid;place-items:center;margin-bottom:18px}.upload-icon svg{width:30px;fill:var(--blue)}.upload-card h2{font-size:25px;letter-spacing:-.02em;margin:0 0 4px;color:var(--navy)}.upload-card p{margin:0 0 20px;color:var(--muted)}.upload-card small{margin-top:15px;color:#8190a3}.button{border:0;border-radius:13px;min-height:48px;padding:0 20px;font-weight:750;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;transition:.18s ease}.button-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(37,135,232,.22)}.button-primary:hover{background:#1677d4;transform:translateY(-1px)}
.tool-aside{display:grid;gap:16px}.aside-card{border:1px solid var(--border);border-radius:20px;background:#fff;padding:22px}.aside-card h3{margin:12px 0 6px;color:var(--navy);font-size:17px}.aside-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}.aside-card a{display:inline-block;margin-top:12px;color:var(--blue);font-weight:750;text-decoration:none;font-size:14px}.aside-card.small{background:var(--navy);border-color:var(--navy);color:#fff}.aside-card.small h3{color:#fff}.aside-card.small p{color:#b8c8db}.aside-card.small a{color:#79bcff}.aside-icon{width:39px;height:39px;border-radius:12px;display:grid;place-items:center}.aside-icon svg{width:20px}.aside-icon.lock{background:var(--green-soft)}.aside-icon.lock svg{fill:var(--green)}.aside-icon.bolt{background:#fff4d9}.aside-icon.bolt svg{fill:#c48210}.lab-mark{font-size:11px;font-weight:800;letter-spacing:.12em;color:#79bcff}
.workspace{display:grid;gap:18px}.file-summary{display:grid;grid-template-columns:64px 1fr 40px;gap:14px;align-items:center;padding:6px 2px 13px;border-bottom:1px solid #edf2f6}.file-thumb-wrap{width:64px;height:64px;border-radius:13px;overflow:hidden;background:#f2f4f7}.file-thumb-wrap img{width:100%;height:100%;object-fit:cover}.file-details{min-width:0}.file-details strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--navy)}.file-details span{display:block;color:var(--muted);font-size:13px;margin-top:2px}.icon-button{width:40px;height:40px;border:1px solid var(--border);background:#fff;border-radius:11px;display:grid;place-items:center;cursor:pointer}.icon-button svg{width:18px;fill:#577087}.icon-button:hover{border-color:#b4cee6;background:#f8fbff}
.settings-card{border:1px solid var(--border);border-radius:20px;padding:22px}.section-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:18px}.section-heading>div{display:flex;align-items:center;gap:10px}.section-heading h3{margin:0;color:var(--navy);font-size:18px}.section-heading p{margin:2px 0 0;color:var(--muted);font-size:13px;text-align:right}.step{width:27px;height:27px;border-radius:9px;background:var(--blue-soft);color:var(--blue);font-weight:800;font-size:12px;display:grid;place-items:center}
.segmented{display:grid;grid-template-columns:1fr 1fr;background:#f1f5f9;padding:4px;border-radius:12px;margin-bottom:18px}.segment{border:0;background:transparent;padding:10px 14px;border-radius:9px;font-weight:700;color:#65758a;cursor:pointer}.segment.active{background:#fff;color:var(--navy);box-shadow:0 2px 8px rgba(25,55,88,.09)}.control-panel{padding-top:2px}.control-label{font-weight:700;font-size:14px;color:#33455b}.preset-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin-top:10px}.preset-grid button{position:relative;border:1px solid var(--border);background:#fff;color:#3d4e61;border-radius:12px;min-height:48px;font-weight:750;cursor:pointer}.preset-grid button:hover{border-color:#a9c7e3}.preset-grid button.selected{border-color:var(--blue);background:var(--blue-soft);color:#1167b9}.preset-grid button span{position:absolute;top:-9px;right:-5px;background:var(--blue);color:#fff;border-radius:99px;padding:2px 6px;font-size:8px;letter-spacing:.03em;text-transform:uppercase}.custom-size-row{display:grid;grid-template-columns:auto minmax(0,190px);justify-content:space-between;align-items:center;gap:18px;margin-top:16px}.custom-size-row>label{font-size:14px;font-weight:700;color:#516174}.input-with-unit{display:flex;border:1px solid var(--border);border-radius:11px;overflow:hidden;background:#fff;min-width:0}.input-with-unit:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,135,232,.10)}.input-with-unit input{width:100%;border:0;outline:0;padding:10px 11px;background:transparent;min-width:0}.input-with-unit span{display:flex;align-items:center;padding:0 11px;border-left:1px solid var(--border);background:#f7f9fb;color:#718196;font-size:13px}.help-text{color:#7a899b;font-size:12px;margin:12px 0 0;line-height:1.55}.quality-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.quality-row output{background:var(--blue-soft);color:#1267b7;border-radius:9px;padding:4px 9px;font-weight:800;font-size:13px}.range{width:100%;accent-color:var(--blue)}.range-labels{display:flex;justify-content:space-between;color:#8997a8;font-size:11px;margin-top:4px}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:grid;gap:7px}.field label{font-size:13px;font-weight:700;color:#4d5e73}.field select,.field>input{width:100%;border:1px solid var(--border);background:#fff;color:#2a3c51;border-radius:11px;padding:11px 12px;outline:0}.field select:focus,.field>input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,135,232,.10)}.custom-dimensions{display:grid;grid-template-columns:1fr 44px 1fr;gap:10px;align-items:end;margin-top:14px}.aspect-lock{width:44px;height:44px;border:1px solid var(--border);border-radius:11px;background:#fff;display:grid;place-items:center;cursor:pointer}.aspect-lock svg{width:18px;fill:#76879a}.aspect-lock.active{border-color:#9bc7ef;background:var(--blue-soft)}.aspect-lock.active svg{fill:var(--blue)}.format-note{background:#fff9e8;border:1px solid #f3df9d;color:#745c12;border-radius:12px;padding:10px 12px;font-size:12px;margin-top:14px}.button-compress{background:var(--navy);color:#fff;width:100%;min-height:55px;font-size:16px}.button-compress:hover{background:#0d2d51;transform:translateY(-1px)}.button-compress[disabled]{opacity:.65;cursor:wait;transform:none}.button-loader{display:none;width:18px;height:18px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;margin-left:10px;animation:spin .8s linear infinite}.button-compress.loading .button-loader{display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.message{border-radius:12px;padding:11px 13px;font-size:13px}.message.error{background:var(--danger-soft);border:1px solid #ffd1cc;color:var(--danger)}
.results{margin-top:28px;background:#fff;border:1px solid var(--border);border-radius:28px;box-shadow:var(--shadow);padding:28px}.result-topline{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:22px}.result-topline h2{margin:8px 0 0;color:var(--navy);letter-spacing:-.025em}.success-badge{display:inline-flex;background:var(--green-soft);color:var(--green);border-radius:99px;padding:5px 9px;font-size:12px;font-weight:800}.text-button{border:0;background:transparent;color:var(--blue);font-weight:750;cursor:pointer}.result-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);gap:22px}.comparison-card,.result-stats-card{border:1px solid var(--border);border-radius:20px;overflow:hidden}.preview-tabs{display:flex;gap:4px;padding:10px 10px 0}.preview-tab{border:0;background:transparent;padding:8px 12px;border-radius:9px;font-weight:700;color:#75869a;cursor:pointer}.preview-tab.active{background:#eef6ff;color:var(--blue)}.preview-stage{height:390px;background:repeating-conic-gradient(#f5f7f9 0% 25%,#edf1f4 0% 50%) 50%/22px 22px;display:grid;place-items:center;margin-top:10px;overflow:hidden}.preview-stage img{max-height:100%;max-width:100%;object-fit:contain}.preview-caption{text-align:center;color:#7e8d9f;font-size:12px;margin:10px}.result-stats-card{padding:26px;display:flex;flex-direction:column;align-items:center}.saving-ring{width:134px;height:134px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:conic-gradient(var(--blue) 0deg,#e7f1fb 0deg);position:relative;margin-bottom:22px}.saving-ring:before{content:"";position:absolute;inset:9px;border-radius:50%;background:#fff}.saving-ring strong,.saving-ring span{position:relative;z-index:1}.saving-ring strong{font-size:28px;line-height:1;color:var(--navy)}.saving-ring span{font-size:11px;color:var(--muted);margin-top:5px}.stat-comparison{width:100%;display:grid;grid-template-columns:1fr 28px 1fr;align-items:center;border-top:1px solid #edf2f6;border-bottom:1px solid #edf2f6;padding:18px 0}.stat-comparison>div{display:grid}.stat-comparison>div:last-child{text-align:right}.stat-comparison span{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:#8795a6;font-weight:800}.stat-comparison strong{font-size:18px;color:var(--navy)}.stat-comparison small{color:#718197}.stat-comparison svg{width:18px;fill:#9aabba;margin:auto}.target-status{width:100%;font-size:12px;text-align:center;color:#4e667d;margin:15px 0}.target-status.good{color:var(--green)}.download-button{width:100%}.download-note{font-size:11px;color:#8997a8;margin:10px 0 0;text-align:center}
.content-section{padding:90px 0}.content-section.alternate{background:var(--sky);border-top:1px solid #eaf2f8;border-bottom:1px solid #eaf2f8}.section-intro{text-align:center;max-width:690px;margin:0 auto 42px}.section-intro.left{text-align:left;margin-left:0}.section-kicker{text-transform:uppercase;letter-spacing:.12em;color:var(--blue);font-size:11px;font-weight:850}.section-intro h2{font-size:clamp(30px,4vw,44px);line-height:1.12;letter-spacing:-.04em;color:var(--navy);margin:9px 0}.section-intro p{margin:0;color:var(--muted)}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.steps-grid article,.benefits-grid article{border:1px solid var(--border);border-radius:20px;background:#fff;padding:24px}.steps-grid article>span{font-size:11px;letter-spacing:.1em;color:var(--blue);font-weight:850}.steps-grid h3,.benefits-grid h3{margin:12px 0 7px;color:var(--navy);font-size:18px}.steps-grid p,.benefits-grid p{margin:0;color:var(--muted);font-size:14px}.benefits-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.faq-wrap{width:min(940px,calc(100% - 40px))}.faq-list{display:grid;gap:10px}.faq-list details{border:1px solid var(--border);border-radius:15px;background:#fff;padding:0 18px}.faq-list summary{cursor:pointer;padding:17px 28px 17px 0;font-weight:750;color:var(--navy);list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:2px;top:13px;font-size:24px;font-weight:400;color:#7790a8}.faq-list details[open] summary:after{content:"–"}.faq-list p{margin:0;padding:0 0 18px;color:var(--muted);font-size:14px}
.site-footer{background:var(--navy);color:#dbe7f4;padding:60px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:42px}.footer-brand p{max-width:310px;color:#9fb2c7;font-size:14px}.footer-logo .brand-logo{filter:brightness(0) invert(1)}.footer-logo .brand-fallback{color:#fff}.footer-grid h3{color:#fff;font-size:13px;margin:0 0 13px}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;align-items:flex-start}.footer-grid a{color:#afc0d2;text-decoration:none;font-size:13px;margin:4px 0}.footer-grid a:hover{color:#fff}.footer-grid>div>p{color:#9fb2c7;font-size:13px;margin:0;line-height:1.7}.footer-bottom{border-top:1px solid rgba(255,255,255,.11);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;color:#8298ae;font-size:11px}
@media(max-width:900px){.tool-shell{grid-template-columns:1fr}.tool-aside{grid-template-columns:repeat(3,1fr)}.aside-card{padding:18px}.result-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.nav-links a:not(.nav-cta){display:none}.brand-label{display:none}}
@media(max-width:680px){.container,.narrow,.faq-wrap{width:min(100% - 24px,1180px)}.nav-wrap{min-height:66px}.brand-logo{width:104px}.nav-cta{padding:9px 12px;font-size:12px}.hero{padding:54px 0 82px}.hero-inner{text-align:left}.eyebrow{font-size:11px}.hero-copy{font-size:16px}.privacy-pill{justify-content:flex-start;align-items:flex-start;font-size:11px}.tool-section{margin-top:-44px}.tool-main{padding:12px;border-radius:20px}.upload-card{min-height:360px;padding:24px 16px;border-radius:17px}.upload-card h2{font-size:21px}.tool-aside{grid-template-columns:1fr}.settings-card{padding:17px;border-radius:16px}.section-heading{display:block}.section-heading>div{margin-bottom:3px}.section-heading p{text-align:left;margin-left:37px}.preset-grid{grid-template-columns:1fr 1fr}.field-grid{grid-template-columns:1fr}.custom-dimensions{grid-template-columns:1fr 42px 1fr}.result-topline{display:block}.result-topline .text-button{margin-top:12px;padding:0}.results{padding:14px;border-radius:20px}.preview-stage{height:300px}.steps-grid,.benefits-grid{grid-template-columns:1fr}.content-section{padding:68px 0}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{display:grid;gap:6px}.section-intro.left{text-align:left}.custom-size-row{grid-template-columns:1fr}.input-with-unit{width:100%}}
@media(max-width:430px){h1{font-size:40px}.preset-grid{grid-template-columns:1fr 1fr}.file-summary{grid-template-columns:54px 1fr 38px}.file-thumb-wrap{width:54px;height:54px}.custom-dimensions{grid-template-columns:1fr}.aspect-lock{display:none}.stat-comparison{grid-template-columns:1fr 24px 1fr}.result-stats-card{padding:20px}.preview-stage{height:260px}}

/* v1.0.1 additions */
.format-line{display:inline-flex;align-items:center;justify-content:center;gap:7px;margin:-7px auto 18px;padding:7px 13px;border:1px solid #d4e6f8;border-radius:999px;background:#fff;color:#2c668f;font-size:13px;font-weight:800;letter-spacing:.035em}
.paste-hint{font-size:12px!important;margin:-8px 0 18px!important;color:#8190a3!important;max-width:440px}.paste-hint kbd{display:inline-block;min-width:22px;padding:1px 5px;border:1px solid #ccd9e5;border-bottom-width:2px;border-radius:5px;background:#fff;color:#52667b;font-size:10px;font-weight:800;line-height:1.5}
.range:disabled{opacity:.4;cursor:not-allowed}.quality-row output{min-width:58px;text-align:center}
.result-summary{margin:-9px 0 13px;text-align:center;font-size:13px;font-weight:800;color:var(--navy)}
.decision-note{width:100%;margin:-2px 0 15px;padding:10px 11px;border:1px solid #d8e8f7;border-radius:11px;background:#f6fbff;color:#536d84;font-size:12px;line-height:1.55;text-align:left}
.seo-explainer{background:#fff}.prose-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);gap:46px;align-items:start}.prose-grid h2{font-size:clamp(30px,4vw,44px);line-height:1.12;letter-spacing:-.04em;color:var(--navy);margin:9px 0 20px}.prose-grid>div:first-child p{color:var(--muted);margin:0 0 16px}.format-guide{display:grid;gap:12px}.format-guide article{border:1px solid var(--border);border-radius:17px;padding:19px 20px;background:linear-gradient(180deg,#fff,#fbfdff)}.format-guide h3{margin:0 0 6px;color:var(--navy);font-size:17px}.format-guide p{margin:0;color:var(--muted);font-size:13.5px}.faq-list p{line-height:1.75}
@media(max-width:900px){.prose-grid{grid-template-columns:1fr;gap:26px}}
@media(max-width:680px){.format-line{justify-content:flex-start;margin:-6px 0 16px;font-size:11px}.paste-hint{font-size:11px!important}.prose-grid h2{font-size:32px}.format-guide article{padding:17px}.result-summary{font-size:12px}}