:root{--bg:#f7f8fa;--surface:#fff;--text:#111827;--muted:#667085;--line:#e5e7eb;--accent:#111827;--accentText:#fff;--soft:#f0f2f5;--shadow:0 10px 35px rgba(15,23,42,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.container{width:min(1120px,calc(100% - 36px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(247,248,250,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{height:70px;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:800;color:var(--text);text-decoration:none}.brand span{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--accent);color:var(--accentText);margin-right:8px;font-size:14px}
nav{display:flex;gap:20px;align-items:center}nav a{color:var(--muted);text-decoration:none;font-size:14px}.icon-btn{border:1px solid var(--line);background:var(--surface);color:var(--text);width:36px;height:36px;border-radius:10px;cursor:pointer}
.hero{padding:92px 0 74px;background:linear-gradient(180deg,var(--surface),var(--bg))}.hero-inner{max-width:820px;text-align:center}.eyebrow{font-size:11px;font-weight:800;letter-spacing:1.6px;color:var(--muted);margin-bottom:12px}
h1{font-size:clamp(48px,8vw,86px);line-height:.98;letter-spacing:-4px;margin:0 0 24px;font-weight:850}h1 span{color:#98a2b3}.hero p{max-width:650px;margin:0 auto 30px;color:var(--muted);font-size:17px}
.search-wrap{max-width:580px;margin:auto}.search-wrap input{width:100%;padding:17px 20px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--text);font-size:16px;outline:none;box-shadow:var(--shadow)}
.section{padding:70px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:28px}.section-heading h2,.about-box h2{font-size:32px;letter-spacing:-1.4px;margin:0}.muted{color:var(--muted);font-size:14px}
.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 2px 12px rgba(15,23,42,.03);transition:.18s transform,.18s box-shadow}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.tool-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:var(--soft);font-weight:800;margin-bottom:15px}.card-category{font-size:10px;text-transform:uppercase;letter-spacing:1.1px;color:var(--muted);font-weight:800;margin-bottom:4px}.tool-card h3{margin:0 0 7px;font-size:18px}.tool-card p{margin:0 0 22px;color:var(--muted);font-size:14px;min-height:44px}.open-tool{color:var(--text);font-weight:750;text-decoration:none}.creator-section{padding-top:15px}
.about{padding-top:15px;padding-bottom:85px}.about-box{background:var(--accent);color:var(--accentText);border-radius:24px;padding:42px;display:grid;grid-template-columns:1fr 1fr;gap:50px}.about-box .eyebrow{color:#aeb7c5}.about-box p{margin:0;color:#c6ccd5}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:13px}.footer-inner{display:flex;justify-content:space-between;gap:20px}
body.dark{--bg:#0b0f14;--surface:#11161d;--text:#f2f4f7;--muted:#98a2b3;--line:#242b35;--accent:#f2f4f7;--accentText:#0b0f14;--soft:#1a212b}
.tool-page{padding:60px 0 90px}.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:25px}.breadcrumbs a{color:var(--muted)}.tool-layout{display:grid;grid-template-columns:minmax(0,680px) 280px;gap:35px;align-items:start}.tool-panel,.info-panel{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:0 2px 12px rgba(15,23,42,.03)}
.tool-panel h1{font-size:42px;letter-spacing:-2px;margin:0 0 8px}.lead{color:var(--muted);margin:0 0 28px}.form-row{display:grid;gap:7px;margin-bottom:16px}.form-row label{font-size:13px;font-weight:700}.form-row input,.form-row select,.calc-textarea{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:11px;background:var(--surface);color:var(--text);font-size:15px}.calc-textarea{min-height:190px;resize:vertical;font-family:inherit}.calc-btn{width:100%;padding:13px;border:0;border-radius:11px;background:var(--accent);color:var(--accentText);font-weight:750;cursor:pointer}.result{margin-top:18px;padding:18px;border-radius:12px;background:var(--soft);font-weight:750}.result small{display:block;color:var(--muted);font-weight:500;margin-bottom:3px}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.result-item{padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.result-item strong{display:block;font-size:20px}.info-panel h3{margin-top:0}.info-panel p,.faq p,.note{font-size:13px;color:var(--muted)}.faq{margin-top:30px}.faq h2{font-size:25px}.faq details{border-top:1px solid var(--line);padding:15px 0}.faq summary{font-weight:700;cursor:pointer}
@media(max-width:850px){.tool-grid{grid-template-columns:repeat(2,1fr)}.about-box{grid-template-columns:1fr;gap:18px}.tool-layout{grid-template-columns:1fr}}@media(max-width:560px){.container{width:min(100% - 24px,1120px)}nav a{display:none}.hero{padding:68px 0 55px}h1{font-size:52px;letter-spacing:-2.5px}.section{padding:52px 0}.tool-grid{grid-template-columns:1fr}.about-box{padding:28px}.footer-inner{flex-direction:column}.result-grid{grid-template-columns:1fr}.tool-panel,.info-panel{padding:22px}.tool-panel h1{font-size:36px}}

/* Day 4 — clear units & improved input UX */
.input-with-unit{display:flex;align-items:stretch}
.input-with-unit input{border-radius:11px 0 0 11px!important;min-width:0}
.unit-prefix,.unit-suffix{display:flex;align-items:center;justify-content:center;padding:0 13px;border:1px solid var(--line);background:var(--soft);color:var(--muted);font-size:13px;font-weight:750;white-space:nowrap}
.unit-prefix{border-right:0;border-radius:11px 0 0 11px}
.unit-prefix+input{border-radius:0 11px 11px 0!important}
.input-with-unit input+.unit-suffix{border-left:0;border-radius:0 11px 11px 0}
.input-with-unit .unit-prefix+input+.unit-suffix{border-left:0}
.form-help{font-size:12px;color:var(--muted);margin-top:4px}
.result-item strong{line-height:1.25}
.result .unit{font-size:.72em;color:var(--muted);font-weight:650}
@media(max-width:560px){
  .form-row{margin-bottom:14px}
  .form-row input,.form-row select,.calc-textarea{font-size:16px}
  .unit-prefix,.unit-suffix{padding:0 10px}
  .calc-btn{min-height:48px;font-size:15px}
}

.form-label{display:block;font-size:13px;font-weight:700;margin-bottom:7px}

.related-tools{margin-top:34px;padding-top:4px}.related-tools h2{font-size:25px;margin:0 0 14px}.related-grid{display:grid;grid-template-columns:1fr;gap:8px}.related-link{display:flex;justify-content:space-between;align-items:center;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);text-decoration:none;font-size:14px;font-weight:700}.related-link:hover{background:var(--soft)}

/* OneMinuteTools bilingual UX */

.omt-language-switcher{display:inline-flex;align-items:center;gap:.35rem;margin-left:.75rem;font-size:.85rem;white-space:nowrap}
.omt-language-switcher button{border:0;background:transparent;padding:.25rem .4rem;border-radius:.5rem;cursor:pointer;font:inherit}
.omt-language-switcher button[aria-pressed="true"]{font-weight:700;text-decoration:underline;text-underline-offset:3px}
.omt-lang-sep{opacity:.45}
@media (max-width:700px){.omt-language-switcher{margin-left:.35rem}.omt-current-language{display:none}}


/* OneMinuteTools clean bilingual selector */
.omt-language-switcher{display:flex;align-items:center;gap:.5rem;margin-left:auto;font-size:.86rem}
.omt-lang-btn{border:0;background:transparent;color:inherit;cursor:pointer;padding:.2rem .25rem;font:inherit}
.omt-lang-btn[aria-pressed="true"]{font-weight:700;text-decoration:underline;text-underline-offset:4px}

/* Day 4 pre-Day-5 expansion */
.choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem;margin:0 0 1rem}.check-row{display:flex;align-items:center;gap:.55rem;padding:.75rem .85rem;border:1px solid var(--border);border-radius:12px;background:var(--card);font-size:.92rem}.check-row input{width:auto}.secondary-btn{margin-top:.7rem;border:1px solid var(--border);background:var(--card);color:var(--text);padding:.72rem 1rem;border-radius:10px;font-weight:700;cursor:pointer}.password-output{margin-top:.45rem;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:1.05rem;overflow-wrap:anywhere}.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem}.result-grid>div{padding:.75rem;border:1px solid var(--border);border-radius:10px}.result-grid strong{display:block;margin-top:.3rem}.qr-result #qrcode{display:flex;justify-content:center;margin-top:.8rem}.qr-result canvas,.qr-result img{max-width:220px;width:100%;height:auto}.form-row textarea{width:100%;resize:vertical;min-height:110px}
@media(max-width:640px){.choice-grid,.result-grid{grid-template-columns:1fr}}


/* Day 5 — guides & SEO content */
.guide-hero{padding:72px 0 44px;background:linear-gradient(180deg,var(--surface),var(--bg))}.guide-hero h1{font-size:clamp(42px,7vw,68px);letter-spacing:-3px;margin-bottom:16px}.guide-hero p{max-width:720px;color:var(--muted);font-size:17px}
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.guide-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 2px 12px rgba(15,23,42,.03)}.guide-card h2,.guide-card h3{font-size:19px;line-height:1.25;margin:4px 0 10px}.guide-card p{color:var(--muted);font-size:14px;margin:0 0 20px}
.guide-page{padding:52px 0 90px}.guide-container{max-width:860px}.guide-article{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:clamp(24px,5vw,48px);box-shadow:0 2px 12px rgba(15,23,42,.03)}.guide-article h1{font-size:clamp(38px,6vw,58px);letter-spacing:-2.5px;line-height:1.05}.guide-lead{font-size:18px;color:var(--muted);margin:0 0 36px}.guide-section{padding:22px 0;border-top:1px solid var(--line)}.guide-section h2,.guide-note h2,.calculator-cta h2{font-size:25px;letter-spacing:-.7px;margin:0 0 12px}.guide-section p,.guide-section li,.guide-note p,.calculator-cta p{color:var(--muted)}.guide-section ul{padding-left:22px;margin-bottom:0}.guide-section li+li{margin-top:8px}.formula-box{padding:18px;border-radius:14px;background:var(--soft);font-weight:750;overflow-wrap:anywhere}.calculator-cta{margin:28px 0;padding:24px;border:1px solid var(--line);border-radius:16px;display:flex;align-items:center;justify-content:space-between;gap:24px}.calculator-cta p{margin:0}.cta-link{flex:0 0 auto;background:var(--accent);color:var(--accentText);text-decoration:none;font-weight:750;padding:12px 16px;border-radius:10px}.guide-note{padding:20px 22px;border-left:4px solid var(--text);background:var(--soft);border-radius:10px;margin:26px 0}.guide-cta{margin-top:28px;padding:20px;border:1px solid var(--line);border-radius:14px;background:var(--soft)}.guide-cta h2{font-size:22px;margin:5px 0 8px}.guide-cta p{font-size:13px;color:var(--muted);margin:0 0 10px}.secondary-guide-link{display:block;color:var(--muted);font-size:13px;font-weight:700;margin-top:10px}.guides-section{padding-top:15px}
@media(max-width:850px){.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.guide-grid{grid-template-columns:1fr}.calculator-cta{align-items:flex-start;flex-direction:column}.cta-link{width:100%;text-align:center}.guide-article{padding:24px}.guide-article h1{letter-spacing:-1.8px}}

/* DAY 6 — monetization foundation */
.footer-links{margin-left:auto;display:inline-flex;gap:.35rem;align-items:center;flex-wrap:wrap}
.footer-links a{color:inherit;text-decoration:none;opacity:.72}
.footer-links a:hover{text-decoration:underline;opacity:1}
.monetization-slot[hidden]{display:none!important}
.monetization-slot{margin:2rem 0;padding:1.25rem;border:1px dashed var(--border,#d7d7d7);border-radius:12px;text-align:center;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;opacity:.72}
@media(max-width:700px){footer .container{gap:.7rem;flex-wrap:wrap}.footer-links{width:100%;margin-left:0}}

/* Day 7 production navbar spacing fix */
.nav{
  justify-content:flex-start;
  column-gap:26px;
}
.nav > .brand{
  flex:0 0 auto;
}
.nav > nav{
  flex:0 1 auto;
  margin-left:4px;
}
.nav > .omt-language-switcher{
  margin-left:auto;
  flex:0 0 auto;
}
@media(max-width:700px){
  .nav{column-gap:14px}
  .nav > nav{margin-left:0}
}

/* Day 7 navbar definitive spacing fix */
.site-header .container.nav > .brand{
  margin-right:32px !important;
  flex:0 0 auto !important;
}
.site-header .container.nav > nav{
  margin-left:0 !important;
  flex:0 1 auto !important;
}
.site-header .container.nav > .omt-language-switcher{
  margin-left:auto !important;
  flex:0 0 auto !important;
}
@media (max-width:700px){
  .site-header .container.nav > .brand{
    margin-right:16px !important;
  }
}