/* ==========================================================================
   5MinuteKnowledge.com — stylesheet
   Design idea: a light "microlearning" brand built around a stopwatch motif.
   Display: Bricolage Grotesque · Body: Inter · Utility/data: Space Mono.
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root{
  --ink:#16233b;        /* navy — primary text */
  --ink-soft:#33425c;
  --paper:#fbfcff;      /* page background — crisp near-white, faint cool tint */
  --surface:#ffffff;    /* cards */
  --cream:#fbf5ea;      /* warm accent surface */
  --blue:#2b62e0;       /* primary accent (soft cobalt) */
  --blue-deep:#1c47ac;
  --blue-tint:#eef3fe;
  --green:#17a07a;      /* secondary accent */
  --green-tint:#e8f6f1;
  --muted:#5c6a83;      /* gray text */
  --line:#e7ebf3;       /* hairline borders */
  --line-strong:#d6ddea;

  --radius:16px;
  --radius-sm:10px;
  --radius-lg:26px;
  --shadow-sm:0 1px 2px rgba(22,35,59,.05);
  --shadow:0 10px 30px -12px rgba(22,35,59,.16);
  --shadow-lg:0 24px 60px -20px rgba(22,35,59,.22);

  --wrap:1140px;
  --font-display:"Bricolage Grotesque",system-ui,sans-serif;
  --font-body:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-mono:"Space Mono","SFMono-Regular",ui-monospace,monospace;
}

/* ---------- Reset-ish ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-body);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;display:block}
a{color:var(--blue-deep);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);line-height:1.12;margin:0 0 .5em;letter-spacing:-.01em;font-weight:700}
p{margin:0 0 1rem}
ul{margin:0}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:200}
.skip-link:focus{left:0}

/* ---------- Eyebrow / small labels (mono) ---------- */
.eyebrow{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--blue-deep);font-weight:700;
  display:inline-flex;align-items:center;gap:.5em;margin-bottom:1rem;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--blue);border-radius:2px}

.ico{width:1.25em;height:1.25em}

/* ==========================================================================
   Brand mark — the stopwatch signature
   ========================================================================== */
.brand{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--font-display);color:var(--ink);font-weight:700}
.brand:hover{text-decoration:none}
.brand__word{font-size:1.18rem;letter-spacing:-.02em}
.brand__word b{color:var(--blue-deep);font-weight:800}
.brand__mark{width:38px;height:38px;flex:none}
.brand__mark svg{width:38px;height:38px;overflow:visible}
.bm-track{fill:none;stroke:var(--line-strong);stroke-width:3.5}
.bm-arc{fill:none;stroke:var(--blue);stroke-width:3.5;stroke-linecap:round;
  stroke-dasharray:94.2;stroke-dashoffset:23.5; /* ~75% arc = "5 min" */}
.bm-num{font-family:var(--font-display);font-weight:800;font-size:17px;fill:var(--ink);
  text-anchor:middle;dominant-baseline:central}
.brand--footer .brand__word{font-size:1.05rem}

@media (prefers-reduced-motion:no-preference){
  .site-header .bm-arc{animation:draw 1.1s ease-out both}
  @keyframes draw{from{stroke-dashoffset:94.2}to{stroke-dashoffset:23.5}}
}

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(251,252,255,.86);
  backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:70px}
.primary-nav ul{display:flex;align-items:center;gap:.15rem;list-style:none;padding:0;flex-wrap:wrap}
.primary-nav a{color:var(--ink-soft);font-size:.94rem;font-weight:500;padding:.5rem .7rem;border-radius:9px;transition:background .15s,color .15s}
.primary-nav a:hover{background:var(--blue-tint);color:var(--blue-deep);text-decoration:none}
.primary-nav a.is-active{color:var(--blue-deep);background:var(--blue-tint)}
.primary-nav__cta a{background:var(--ink);color:#fff !important}
.primary-nav__cta a:hover{background:var(--blue-deep)}

.nav-toggle{display:none;flex-direction:column;gap:5px;width:44px;height:44px;
  border:1px solid var(--line-strong);border-radius:11px;background:var(--surface);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-display);font-weight:700;
  font-size:1rem;padding:.8rem 1.35rem;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:.18s;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px -8px rgba(43,98,224,.6)}
.btn--primary:hover{background:var(--blue-deep)}
.btn--ghost{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--blue);color:var(--blue-deep)}
.btn--block{width:100%;justify-content:center}
.btn .ico{width:1.1em;height:1.1em}

/* ==========================================================================
   Sections
   ========================================================================== */
.section{padding:72px 0}
.section--tight{padding:48px 0}
.section--cream{background:var(--cream)}
.section--tint{background:linear-gradient(180deg,var(--blue-tint),transparent)}
.section__head{max-width:640px;margin-bottom:2.4rem}
.section__head--center{margin-inline:auto;text-align:center}
.section__title{font-size:clamp(1.6rem,3.4vw,2.3rem)}
.section__intro{color:var(--muted);font-size:1.05rem}
.lead{font-size:1.18rem;color:var(--ink-soft);max-width:60ch}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{position:relative;overflow:hidden;padding:76px 0 64px;
  background:radial-gradient(1200px 500px at 82% -10%,var(--blue-tint),transparent 60%)}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(2.3rem,5.4vw,3.65rem);font-weight:800;letter-spacing:-.03em}
.hero h1 .u{color:var(--blue-deep);position:relative;white-space:nowrap}
.hero h1 .u::after{content:"";position:absolute;left:0;right:0;bottom:.08em;height:.14em;background:var(--green);opacity:.55;border-radius:3px}
.hero__intro{font-size:1.16rem;color:var(--ink-soft);max-width:52ch;margin:1.2rem 0 1.8rem}
.hero__cta{display:flex;gap:.8rem;flex-wrap:wrap}
.hero__stats{display:flex;gap:1.8rem;margin-top:2rem;flex-wrap:wrap}
.hero__stat{display:flex;flex-direction:column}
.hero__stat b{font-family:var(--font-mono);font-size:1.5rem;color:var(--ink);line-height:1}
.hero__stat span{font-size:.85rem;color:var(--muted)}

/* Hero timer dial */
.dial{position:relative;aspect-ratio:1;max-width:360px;margin-inline:auto;width:100%}
.dial__card{position:absolute;inset:0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);display:grid;place-items:center;padding:28px}
.dial svg{width:100%;height:100%;overflow:visible}
.dial .d-track{fill:none;stroke:var(--line);stroke-width:6}
.dial .d-arc{fill:none;stroke:url(#dgrad);stroke-width:6;stroke-linecap:round;
  stroke-dasharray:534;stroke-dashoffset:133 /* ~75% */}
.dial__center{position:absolute;inset:0;display:grid;place-content:center;text-align:center}
.dial__time{font-family:var(--font-mono);font-weight:700;font-size:2.6rem;color:var(--ink);letter-spacing:-.02em}
.dial__label{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.dial__now{margin-top:.7rem;font-size:.9rem;color:var(--ink-soft)}
.dial__now b{color:var(--blue-deep)}
@media (prefers-reduced-motion:no-preference){
  .dial .d-arc{animation:dial 1.4s ease-out both .2s}
  @keyframes dial{from{stroke-dashoffset:534}to{stroke-dashoffset:133}}
}

/* ==========================================================================
   Read-time badge (used in cards)
   ========================================================================== */
.readbadge{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--font-mono);
  font-size:.72rem;font-weight:700;color:var(--ink-soft);background:var(--paper);
  border:1px solid var(--line);padding:.2rem .5rem .2rem .3rem;border-radius:999px;white-space:nowrap}
.readbadge svg{width:18px;height:18px;flex:none}
.rb-track{fill:none;stroke:var(--line-strong);stroke-width:3}
.rb-fill{fill:none;stroke:var(--green);stroke-width:3;stroke-linecap:round}

/* ==========================================================================
   Category cards
   ========================================================================== */
.grid{display:grid;gap:20px}
.grid--cats{grid-template-columns:repeat(4,1fr)}
.cat-card{display:flex;align-items:flex-start;gap:.9rem;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm);
  transition:.18s;position:relative}
.cat-card:hover{text-decoration:none;border-color:var(--blue);box-shadow:var(--shadow);transform:translateY(-2px)}
.cat-card__icon{flex:none;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--blue-tint);color:var(--blue-deep)}
.cat-card__icon .ico{width:22px;height:22px}
.cat-card__name{display:block;font-family:var(--font-display);font-weight:700;color:var(--ink);margin-bottom:.15rem}
.cat-card__blurb{display:block;font-size:.9rem;color:var(--muted);line-height:1.5}
.cat-card__go{position:absolute;top:16px;right:16px;color:var(--line-strong);transition:.18s}
.cat-card__go .ico{width:18px;height:18px}
.cat-card:hover .cat-card__go{color:var(--blue);transform:translateX(3px)}

/* ==========================================================================
   Guide cards
   ========================================================================== */
.grid--guides{grid-template-columns:repeat(3,1fr)}
.guide-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:.18s}
.guide-card:hover{box-shadow:var(--shadow);border-color:var(--line-strong)}
.guide-card__top{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.9rem}
.tag{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--blue-deep);background:var(--blue-tint);padding:.25rem .55rem;border-radius:7px;font-weight:700}
.tag:hover{text-decoration:none;background:#e2ebfd}
.guide-card__title{font-size:1.16rem;margin:0 0 .6rem}
.guide-card__plain{color:var(--ink-soft);font-size:.96rem;margin-bottom:1rem}
.guide-card__meta{margin:0;border-top:1px solid var(--line);padding-top:.9rem;display:grid;gap:.55rem}
.guide-card__meta dt{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--green);font-weight:700}
.guide-card__meta dd{margin:.05rem 0 0;font-size:.9rem;color:var(--muted);line-height:1.5}
.guide-card__related{margin:1rem 0 0;font-size:.82rem;color:var(--muted)}
.guide-card__related span{font-weight:700;color:var(--ink-soft)}

/* ==========================================================================
   Content pages (category / legal / faq)
   ========================================================================== */
.page-head{padding:56px 0 8px;background:linear-gradient(180deg,var(--blue-tint),transparent)}
.page-head h1{font-size:clamp(2rem,4.4vw,2.9rem);font-weight:800;max-width:18ch}
.page-head .lead{margin-top:.6rem}

.crumbs{margin-bottom:1.1rem}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;padding:0;font-family:var(--font-mono);font-size:.74rem;color:var(--muted)}
.crumbs li+li::before{content:"/";margin-right:.4rem;color:var(--line-strong)}
.crumbs a{color:var(--muted)}
.crumbs [aria-current]{color:var(--ink-soft)}

.prose{max-width:72ch}
.prose h2{font-size:1.5rem;margin-top:2.2rem}
.prose h3{font-size:1.15rem;margin-top:1.6rem}
.prose p,.prose li{color:var(--ink-soft)}
.prose ul{padding-left:1.2rem;margin:0 0 1rem}
.prose li{margin-bottom:.4rem}
.prose a{font-weight:600}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.sidebar{position:sticky;top:90px;display:grid;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.side-card h2{font-size:1rem;margin-bottom:.7rem}
.side-card ul{list-style:none;padding:0;display:grid;gap:.5rem}
.side-card ul a{font-size:.92rem;color:var(--ink-soft);display:flex;gap:.5rem;align-items:center}
.side-card ul a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--green);flex:none}

/* Topic chips */
.chips{display:flex;flex-wrap:wrap;gap:.55rem;margin:1.2rem 0 0;padding:0;list-style:none}
.chips li{font-family:var(--font-mono);font-size:.8rem;color:var(--ink-soft);background:var(--surface);
  border:1px solid var(--line);border-radius:999px;padding:.35rem .8rem}

/* Callout / note box */
.note{background:var(--cream);border:1px solid #efe3cf;border-radius:var(--radius);padding:18px 20px;margin:1.6rem 0}
.note strong{color:var(--ink)}
.note--green{background:var(--green-tint);border-color:#cdeee2}

/* Feature list ("why quick explanations help") */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.feature__ic{width:44px;height:44px;border-radius:12px;background:var(--green-tint);color:var(--green);display:grid;place-items:center;margin-bottom:1rem}
.feature h3{font-size:1.1rem}
.feature p{color:var(--muted);font-size:.95rem;margin:0}

/* ==========================================================================
   Domain acquisition band
   ========================================================================== */
.domain-band{background:var(--ink);color:#e9edf6;border-radius:var(--radius-lg);
  padding:44px;display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;position:relative;overflow:hidden}
.domain-band::before{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;border:2px dashed rgba(255,255,255,.14)}
.domain-band .eyebrow{color:#8fb2ff}
.domain-band .eyebrow::before{background:#8fb2ff}
.domain-band h2{color:#fff;font-size:1.7rem;margin-bottom:.6rem}
.domain-band p{color:#c4cdde;margin:0}
.domain-band__cta{display:flex;justify-content:flex-end}
.domain-band .btn--primary{background:#fff;color:var(--ink)}
.domain-band .btn--primary:hover{background:var(--blue-tint)}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq{max-width:760px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin-bottom:12px;overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-family:var(--font-display);
  font-weight:700;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:1rem}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-family:var(--font-mono);font-size:1.4rem;color:var(--blue);transition:.2s;flex:none}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item__body{padding:0 22px 20px;color:var(--ink-soft)}
.faq-item__body p{margin:0}

/* ==========================================================================
   Forms (contact)
   ========================================================================== */
.form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow);max-width:680px}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px;display:flex;flex-direction:column}
.field label{font-weight:600;font-size:.9rem;margin-bottom:.4rem;color:var(--ink)}
.field label .req{color:var(--blue-deep)}
.field input,.field select,.field textarea{font-family:var(--font-body);font-size:1rem;color:var(--ink);
  background:var(--paper);border:1px solid var(--line-strong);border-radius:11px;padding:.75rem .9rem;transition:.15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-tint)}
.field textarea{min-height:150px;resize:vertical}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form__note{font-size:.82rem;color:var(--muted);margin-top:.3rem}
.alert{border-radius:12px;padding:14px 16px;margin-bottom:20px;font-size:.95rem}
.alert--error{background:#fdeef0;border:1px solid #f6cdd3;color:#a12435}

/* ==========================================================================
   Ads
   ========================================================================== */
.adslot{margin:32px auto;max-width:var(--wrap);text-align:center}
.adslot__label{display:block;font-family:var(--font-mono);font-size:.6rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--line-strong);margin-bottom:.4rem}
.adslot--sidebar{margin:0}

/* ==========================================================================
   Misc / utility
   ========================================================================== */
.cta-row{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.4rem}
.center{text-align:center}
.mt-lg{margin-top:2.4rem}
.muted{color:var(--muted)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* 404 */
.err{min-height:56vh;display:grid;place-content:center;text-align:center;padding:60px 0}
.err__code{font-family:var(--font-mono);font-size:clamp(3.5rem,12vw,7rem);font-weight:700;color:var(--blue);line-height:1}

/* Back-to-top */
.to-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;
  background:var(--ink);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow);
  transform:translateY(20px) rotate(-90deg);opacity:0;pointer-events:none;transition:.25s;z-index:90}
.to-top .ico{width:20px;height:20px}
.to-top.show{opacity:1;transform:translateY(0) rotate(-90deg);pointer-events:auto}
.to-top:hover{background:var(--blue-deep);text-decoration:none}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:56px 0 28px;margin-top:24px}
.site-footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.site-footer__tag{color:var(--muted);font-size:.92rem;max-width:34ch;margin:1rem 0}
.site-footer__domain{font-size:.86rem;color:var(--ink-soft);background:var(--blue-tint);
  border:1px solid #dbe6fd;border-radius:12px;padding:12px 14px;max-width:40ch}
.site-footer__domain a{display:inline-block;margin-top:.3rem;font-weight:600}
.site-footer__h{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:1rem}
.site-footer__col ul{list-style:none;padding:0;display:grid;gap:.55rem}
.site-footer__col a{color:var(--ink-soft);font-size:.93rem}
.site-footer__col a:hover{color:var(--blue-deep)}
.site-footer__disclaimer{color:var(--muted);font-size:.82rem;line-height:1.6;border-top:1px solid var(--line);
  margin-top:40px;padding-top:24px;max-width:80ch}
.site-footer__bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem;margin-top:16px;font-size:.85rem;color:var(--muted)}
.site-footer__bottom p{margin:0}
.site-footer__mini a{color:var(--muted)}
.site-footer__mini span{margin:0 .4rem;color:var(--line-strong)}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:960px){
  .grid--cats{grid-template-columns:repeat(2,1fr)}
  .grid--guides{grid-template-columns:repeat(2,1fr)}
  .features{grid-template-columns:1fr}
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .dial{max-width:300px}
  .layout{grid-template-columns:1fr}
  .sidebar{position:static;grid-template-columns:1fr 1fr}
  .domain-band{grid-template-columns:1fr;padding:32px}
  .domain-band__cta{justify-content:flex-start}
  .site-footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .nav-toggle{display:flex}
  .primary-nav{position:fixed;inset:70px 0 auto 0;background:var(--surface);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);transform:translateY(-140%);transition:transform .28s ease;max-height:calc(100vh - 70px);overflow:auto}
  .primary-nav.open{transform:translateY(0)}
  .primary-nav ul{flex-direction:column;align-items:stretch;gap:.2rem;padding:14px 20px}
  .primary-nav a{padding:.7rem .6rem;font-size:1rem}
  .primary-nav__cta a{text-align:center;margin-top:.4rem}
  .form__row{grid-template-columns:1fr}
  .sidebar{grid-template-columns:1fr}
  .site-footer__grid{grid-template-columns:1fr}
  .hero__stats{gap:1.2rem}
  body{font-size:16px}
}
@media (max-width:420px){
  .grid--cats,.grid--guides{grid-template-columns:1fr}
}