/* ==========================================================================
   Minutes to Hours — single stylesheet (design tokens ported from client CSS)
   ========================================================================== */

:root{
  --paper:#FAFAFA;
  --surface:#FFFFFF;
  --ink:#1A1A2E;
  --slate:#6B7280;
  --slate-light:#9CA3AF;
  --accent:#7C3AED;
  --accent-dark:#6D28D9;
  --accent-light:#EDE9FE;
  --border:#E5E7EB;
  --border-strong:#D1D5DB;
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-mono:ui-monospace,"SF Mono","Cascadia Code","Roboto Mono",Menlo,Consolas,monospace;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --shadow-lg:0 8px 24px rgba(0,0,0,.10);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important}
}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-sans);line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--accent-dark)}
.container{max-width:1080px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-999px;top:auto;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip-link:focus{left:16px;top:16px}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px}

/* ---------- Header ---------- */
header.site{border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:20}
.site-header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;max-width:1080px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--ink);text-decoration:none;letter-spacing:-0.01em}
.logo svg{flex:none}
nav.primary-nav{display:flex;gap:28px;align-items:center}
nav.primary-nav a{color:var(--slate);text-decoration:none;font-size:14.5px;font-weight:600}
nav.primary-nav a:hover{color:var(--accent-dark)}
.nav-cta{background:var(--ink);color:#fff!important;padding:9px 16px;border-radius:999px;font-size:13.5px!important}

/* ---------- Breadcrumb (conversion pages) ---------- */
.breadcrumb{padding:18px 0 0;font-size:13.5px;color:var(--slate-light)}
.breadcrumb a{color:var(--slate);text-decoration:none}
.breadcrumb a:hover{color:var(--accent-dark)}
.breadcrumb span{color:var(--ink);font-weight:600}

/* ---------- Headings ---------- */
h1{font-size:clamp(26px,4vw,38px);line-height:1.15;letter-spacing:-0.02em;margin:10px 0 18px;font-weight:800}
.hero h1{font-size:clamp(30px,4.4vw,44px);line-height:1.12;margin:0 0 14px}

/* ---------- Homepage hero ---------- */
.hero{padding:56px 0 40px}
.page-hero{padding:20px 0 36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--accent-light);color:var(--accent-dark);font-size:12.5px;font-weight:700;letter-spacing:0.04em;text-transform:uppercase;padding:6px 12px;border-radius:999px;margin-bottom:18px}
.hero p.lead{font-size:17.5px;color:var(--slate);max-width:640px;margin:0 0 28px}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap;margin-top:32px}
.stat b{display:block;font-family:var(--font-mono);font-size:22px;color:var(--ink);font-weight:700}
.stat span{font-size:13px;color:var(--slate-light)}

/* ---------- Tick divider (signature element) ---------- */
.tick-divider{width:100%;height:22px;margin:48px 0;opacity:0.9}

/* ---------- Conversion-page answer block ---------- */
.answer-lede{font-size:18px;color:var(--ink);max-width:680px;margin:0 0 28px;background:var(--accent-light);border-left:4px solid var(--accent);padding:16px 20px;border-radius:0 var(--radius-sm) var(--radius-sm) 0}
.answer-lede strong{font-family:var(--font-mono)}
.answer-block{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:32px}
@media (max-width:800px){.answer-block{grid-template-columns:repeat(2,1fr)}}
.answer-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px}
.answer-card .al{font-size:12px;font-weight:700;color:var(--slate);text-transform:uppercase;letter-spacing:0.04em;margin-bottom:8px}
.answer-card .av{font-family:var(--font-mono);font-size:20px;font-weight:700;color:var(--accent-dark)}

/* ---------- Calculator card ---------- */
.calc-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:32px;max-width:760px}
.calc-card h2{margin:0 0 4px;font-size:19px}
.calc-sub{color:var(--slate);font-size:14px;margin:0 0 24px}
.calc-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:end}
@media (max-width:620px){.calc-grid{grid-template-columns:1fr}}
.field label{display:block;font-size:13px;font-weight:700;color:var(--slate);margin-bottom:8px}
.input-wrap{position:relative}
.input-wrap input{width:100%;font-family:var(--font-mono);font-size:26px;font-weight:600;padding:14px 16px;border:1.5px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink)}
.input-wrap input:focus{border-color:var(--accent);background:#fff}
.input-wrap span.unit{position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--slate-light);font-size:13px;font-weight:600;pointer-events:none}
.swap-btn{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;border:1.5px solid var(--border-strong);background:#fff;cursor:pointer;color:var(--slate);margin:0 auto}
.swap-btn:hover{border-color:var(--accent);color:var(--accent-dark)}
.readout{margin-top:26px;background:var(--ink);border-radius:var(--radius-md);padding:22px 24px;color:#fff}
.readout-row{display:flex;justify-content:space-between;align-items:baseline;padding:7px 0}
.readout-row+.readout-row{border-top:1px solid rgba(255,255,255,0.10)}
.readout-row .rl{font-size:13px;color:rgba(255,255,255,0.6);font-weight:600}
.readout-row .rv{font-family:var(--font-mono);font-size:19px;font-weight:700;font-variant-numeric:tabular-nums}
.calc-actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.btn{font-family:inherit;font-size:14px;font-weight:700;border-radius:999px;padding:11px 20px;cursor:pointer;border:1.5px solid transparent;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-ghost{background:transparent;border-color:var(--border-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent)}
.copy-note{font-size:12.5px;color:var(--accent-dark);font-weight:600;align-self:center}

/* ---------- Section base ---------- */
section{padding:48px 0}
.section-head{max-width:640px;margin-bottom:24px}
.section-head .kicker{font-size:12.5px;font-weight:700;color:var(--accent-dark);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:8px;display:block}
h2.section-title{font-size:24px;margin:0 0 8px;letter-spacing:-0.01em}
.section-head p{color:var(--slate);margin:0;font-size:15px}

/* ---------- Quick answers (homepage) ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media (max-width:700px){.qa-grid{grid-template-columns:1fr}}
.qa-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px 20px}
.qa-item .q{font-weight:700;font-size:14.5px;margin-bottom:6px}
.qa-item .a{color:var(--slate);font-size:14px;margin:0}
.qa-item .a strong{color:var(--ink);font-family:var(--font-mono)}

/* ---------- Formula ---------- */
.formula-box{background:var(--accent-light);border:1px solid #DDD6FE;border-radius:var(--radius-md);padding:24px 28px}
.formula-box .f{font-family:var(--font-mono);font-size:20px;font-weight:700;color:var(--accent-dark);margin-bottom:14px}
.formula-box p{margin:0;color:var(--slate);font-size:14.5px}
.work-steps{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.work-steps li{font-family:var(--font-mono);font-size:15px;color:var(--ink)}
.work-steps li span{color:var(--slate)}

/* ---------- Steps (homepage how-to) ---------- */
.steps{list-style:none;margin:0;padding:0;counter-reset:step;display:grid;gap:16px}
.steps li{display:flex;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px 20px}
.steps li::before{counter-increment:step;content:counter(step);flex:none;width:32px;height:32px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-weight:700;font-size:14px}
.steps h3{margin:0 0 4px;font-size:15.5px}
.steps p{margin:0;color:var(--slate);font-size:14px}

/* ---------- Worked examples (homepage) ---------- */
.examples-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:800px){.examples-grid{grid-template-columns:1fr}}
.example-card{border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;background:var(--surface)}
.example-card .ex-input{font-family:var(--font-mono);font-size:15px;color:var(--slate);margin-bottom:6px}
.example-card .ex-output{font-family:var(--font-mono);font-size:21px;font-weight:700;color:var(--accent-dark);margin-bottom:10px}
.example-card p{margin:0;font-size:13.5px;color:var(--slate-light)}

/* ---------- Context card (conversion page explanation) ---------- */
.context-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:24px;max-width:680px}
.context-card p{margin:0 0 12px;color:var(--ink);font-size:15px}
.context-card p:last-child{margin-bottom:0}
.context-card .frame-note{font-size:13.5px;color:var(--slate);border-top:1px solid var(--border);padding-top:14px;margin-top:14px}

/* ---------- Real-world reference note ---------- */
.example-note{display:flex;gap:14px;align-items:flex-start;background:var(--surface);border:1px dashed var(--border-strong);border-radius:var(--radius-md);padding:18px 20px;max-width:680px}
.example-note svg{flex:none;margin-top:2px}
.example-note p{margin:0;font-size:14.5px;color:var(--slate)}
.example-note strong{color:var(--ink)}

/* ---------- Chart / table (nearby + homepage chart) ---------- */
.chart-scroll{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface)}
table.chart{width:100%;border-collapse:collapse;min-width:640px}
table.chart th,table.chart td{text-align:left;padding:12px 18px;font-size:14px;border-bottom:1px solid var(--border);white-space:nowrap}
table.chart th{background:var(--paper);font-size:12px;text-transform:uppercase;letter-spacing:0.04em;color:var(--slate);font-weight:700}
table.chart td.num{font-family:var(--font-mono)}
table.chart tr.current-row td{background:var(--accent-light)}
table.chart tr:last-child td{border-bottom:none}
table.chart a{color:var(--accent-dark);text-decoration:none;font-weight:700}
table.chart a:hover{text-decoration:underline}
table.chart span.unpublished{color:var(--slate-light)}
.chart-note{font-size:12.5px;color:var(--slate-light);margin-top:10px}

/* ---------- Use cases (homepage) ---------- */
.uc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:800px){.uc-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.uc-grid{grid-template-columns:1fr}}
.uc-card{border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;background:var(--surface)}
.uc-card svg{margin-bottom:12px}
.uc-card h3{margin:0 0 6px;font-size:15px}
.uc-card p{margin:0;font-size:13.5px;color:var(--slate)}

/* ---------- FAQ accordion ---------- */
details.faq-item{border:1px solid var(--border);border-radius:var(--radius-md);padding:4px 20px;background:var(--surface);margin-bottom:12px}
details.faq-item summary{cursor:pointer;padding:16px 0;font-weight:700;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary::after{content:"+";flex:none;font-size:20px;font-weight:400;color:var(--slate-light)}
details.faq-item[open] summary::after{content:"\2013"}
details.faq-item p{margin:0 0 18px;color:var(--slate);font-size:14.5px}

/* ---------- Body link note / admin note (conversion page) ---------- */
.body-link-note{max-width:680px;color:var(--slate);font-size:14.5px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px 20px}
.body-link-note a{font-weight:700}
.admin-note{max-width:680px;background:#FFF9EC;border:1px solid #F3E3B8;border-radius:var(--radius-md);padding:16px 20px;font-size:14px;color:#7A5C12;margin-top:16px}
.admin-note b{display:block;font-size:12px;text-transform:uppercase;letter-spacing:0.04em;margin-bottom:6px;color:#9A7412}

/* ---------- Popular pills ---------- */
.pill-row{display:flex;flex-wrap:wrap;gap:10px}
.pill{background:var(--surface);border:1.5px solid var(--border-strong);border-radius:999px;padding:9px 16px;font-size:13.5px;font-weight:700;text-decoration:none;color:var(--ink);font-family:var(--font-mono)}
.pill:hover{border-color:var(--accent);color:var(--accent-dark)}
.pill.unpublished{color:var(--slate-light);cursor:default}
.pill.unpublished:hover{border-color:var(--border-strong);color:var(--slate-light)}

/* ---------- Related searches list ---------- */
.related-list{display:flex;flex-wrap:wrap;gap:8px 18px;padding:0;margin:0;list-style:none}
.related-list li{font-size:14px;color:var(--slate)}
.related-list a{color:var(--slate);text-decoration:none;border-bottom:1px dotted var(--border-strong)}
.related-list a:hover{color:var(--accent-dark);border-color:var(--accent)}

/* ---------- TechVindra family band (homepage) ---------- */
.family-band{background:var(--ink);border-radius:var(--radius-lg);padding:36px 32px;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.family-band h2{margin:0 0 6px;font-size:20px;color:#fff}
.family-band p{margin:0;color:rgba(255,255,255,0.65);font-size:14px;max-width:480px}
.family-links{display:flex;gap:12px;flex-wrap:wrap}
.family-links a{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.16);color:#fff;padding:10px 18px;border-radius:999px;text-decoration:none;font-size:13.5px;font-weight:700}
.family-links a:hover{background:rgba(255,255,255,0.16)}

/* ---------- Footer ---------- */
footer.site{border-top:1px solid var(--border);padding:40px 0;margin-top:20px}
.footer-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer-brand p{color:var(--slate);font-size:13.5px;max-width:320px;margin:10px 0 0}
.footer-links{display:flex;gap:40px;flex-wrap:wrap}
.footer-links h4{font-size:12.5px;text-transform:uppercase;letter-spacing:0.04em;color:var(--slate-light);margin:0 0 12px}
.footer-links ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-links a{color:var(--slate);text-decoration:none;font-size:14px}
.footer-links a:hover{color:var(--accent-dark)}
.footer-bottom{margin-top:32px;padding-top:20px;border-top:1px solid var(--border);color:var(--slate-light);font-size:12.5px}

/* ---------- Admin (login + dashboard, reuses tokens above) ---------- */
.admin-shell{max-width:480px;margin:64px auto;padding:0 24px}
.admin-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:32px}
.admin-card h1{font-size:22px;margin:0 0 6px}
.admin-card p.sub{color:var(--slate);font-size:14px;margin:0 0 24px}
.admin-field{margin-bottom:16px}
.admin-field label{display:block;font-size:13px;font-weight:700;color:var(--slate);margin-bottom:6px}
.admin-field input{width:100%;font-family:var(--font-sans);font-size:15px;padding:11px 14px;border:1.5px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink)}
.admin-field input:focus{border-color:var(--accent);background:#fff}
.admin-error{background:#FEF2F2;border:1px solid #FECACA;color:#B91C1C;border-radius:var(--radius-sm);padding:12px 14px;font-size:13.5px;margin-bottom:16px}
.admin-table{width:100%;border-collapse:collapse;font-size:14px}
.admin-table th,.admin-table td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border)}
.admin-table th{background:var(--paper);font-size:12px;text-transform:uppercase;letter-spacing:0.04em;color:var(--slate)}
.admin-badge{font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;text-transform:uppercase;letter-spacing:0.03em}
.admin-badge.published{background:#DCFCE7;color:#166534}
.admin-badge.draft{background:#F3F4F6;color:#4B5563}
.admin-topbar{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid var(--border);background:var(--surface)}

/* ---------- Mobile ---------- */
@media (max-width:640px){
  .container{padding:0 16px}
  .site-header-inner{padding:14px 16px}
  nav.primary-nav{gap:14px}
  nav.primary-nav a:not(.nav-cta){display:none}
  .nav-cta{padding:8px 12px;font-size:12.5px!important}
  .hero{padding:36px 0 28px}
  .calc-card{padding:22px}
  .answer-block{grid-template-columns:1fr 1fr}
  section{padding:32px 0}
  .family-band{padding:28px 22px}
  .footer-grid{flex-direction:column;gap:24px}
}