/* TrainACat.us — premium cat-training design system
   Palette: warm cream + deep teal + coral accent */
:root{
  --cream:#fdf8f1; --cream-2:#f6eee0; --ink:#1f2933; --ink-soft:#3e4c59;
  --teal:#0f766e; --teal-dark:#0b5650; --teal-light:#5eead4; --teal-wash:#e6f7f4;
  --coral:#ff6b5e; --coral-dark:#e2503f; --gold:#f4b942; --paw:#c98a5e;
  --line:#e7ddcd; --shadow:0 12px 40px -16px rgba(15,118,110,.35);
  --shadow-sm:0 4px 18px -8px rgba(31,41,51,.25);
  --radius:18px; --maxw:1120px;
  --serif:'Georgia','Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--ink);background:var(--cream);
  line-height:1.7;font-size:18px;-webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--teal-dark);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(253,248,241,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;
  max-width:var(--maxw);margin:0 auto;padding:12px 22px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;
  color:var(--ink);letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand .logo{width:38px;height:38px;flex:0 0 auto}
.brand b{color:var(--teal)}
.nav-links{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.nav-links a{color:var(--ink-soft);font-weight:600;font-size:.97rem}
.nav-links a:hover{color:var(--teal);text-decoration:none}
.nav-cta{background:var(--coral);color:#fff !important;padding:9px 16px;border-radius:999px;
  font-weight:700}
.nav-cta:hover{background:var(--coral-dark);text-decoration:none}
.menu-toggle{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer;color:var(--ink)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(900px 500px at 80% -10%,var(--teal-wash),transparent),
             linear-gradient(180deg,#fffdf9,var(--cream))}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  padding:64px 0 56px}
.eyebrow{display:inline-block;background:var(--teal-wash);color:var(--teal-dark);
  font-weight:700;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;
  padding:6px 14px;border-radius:999px;margin-bottom:18px}
h1{font-family:var(--serif);font-size:clamp(2.1rem,5vw,3.3rem);line-height:1.1;
  margin:0 0 18px;letter-spacing:-.02em;color:var(--ink)}
.hero p.lead{font-size:1.18rem;color:var(--ink-soft);margin:0 0 26px;max-width:34em}
.btn{display:inline-block;background:var(--teal);color:#fff;font-weight:700;
  padding:14px 26px;border-radius:999px;box-shadow:var(--shadow);transition:.18s}
.btn:hover{background:var(--teal-dark);text-decoration:none;transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--teal-dark);border:2px solid var(--line);box-shadow:none;margin-left:10px}
.btn-ghost:hover{border-color:var(--teal);background:#fff}
.hero-art{filter:drop-shadow(0 24px 40px rgba(15,118,110,.2))}

/* ---------- Generic sections ---------- */
main{padding-bottom:40px}
section{padding:46px 0}
.section-title{font-family:var(--serif);font-size:clamp(1.6rem,3.5vw,2.2rem);
  margin:0 0 8px;letter-spacing:-.01em}
.section-sub{color:var(--ink-soft);margin:0 0 28px;font-size:1.05rem}

/* breadcrumb */
.crumbs{font-size:.85rem;color:var(--ink-soft);padding:16px 0 0}
.crumbs a{color:var(--teal-dark)}
.crumbs span{color:var(--paw)}

/* article layout */
.article-head{padding:30px 0 6px}
.article-head h1{margin-bottom:10px}
.meta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;color:var(--ink-soft);
  font-size:.9rem;margin-bottom:8px}
.tag{background:var(--teal-wash);color:var(--teal-dark);padding:3px 11px;border-radius:999px;
  font-weight:700;font-size:.78rem}
.layout{display:grid;grid-template-columns:1fr 290px;gap:48px;align-items:start}
.prose{max-width:760px}
.prose h2{font-family:var(--serif);font-size:1.7rem;margin:42px 0 12px;letter-spacing:-.01em;
  padding-top:6px}
.prose h3{font-size:1.25rem;margin:28px 0 8px;color:var(--ink)}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:24px}
.prose li{margin:0 0 9px}
.prose strong{color:var(--ink)}
.lead-para{font-size:1.18rem;color:var(--ink-soft)}

/* sidebar */
.sidebar{position:sticky;top:90px;display:flex;flex-direction:column;gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm)}
.card h4{margin:0 0 12px;font-size:1.05rem}
.toc a{display:block;color:var(--ink-soft);padding:5px 0;font-size:.93rem;border-bottom:1px dashed var(--line)}
.toc a:hover{color:var(--teal)}
.author-card{display:flex;gap:14px;align-items:flex-start}
.author-card img{width:56px;height:56px;border-radius:50%;flex:0 0 auto;border:2px solid var(--teal-light)}
.author-card .name{font-weight:800}
.author-card .role{font-size:.82rem;color:var(--ink-soft)}

/* callouts */
.callout{border-left:5px solid var(--teal);background:var(--teal-wash);
  padding:18px 22px;border-radius:0 14px 14px 0;margin:24px 0}
.callout.warn{border-color:var(--coral);background:#fff1ef}
.callout.tip{border-color:var(--gold);background:#fff8e8}
.callout .label{font-weight:800;text-transform:uppercase;font-size:.74rem;letter-spacing:.07em;
  color:var(--teal-dark);margin-bottom:4px;display:block}
.callout.warn .label{color:var(--coral-dark)}
.callout.tip .label{color:#a87a14}

/* figure/infographic */
figure{margin:30px 0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm)}
figure svg{width:100%;height:auto}
figcaption{margin-top:12px;font-size:.86rem;color:var(--ink-soft);text-align:center;font-style:italic}

/* step list */
.steps{counter-reset:step;list-style:none;padding:0;margin:24px 0}
.steps li{position:relative;padding:0 0 22px 60px;margin:0}
.steps li:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:-2px;
  width:42px;height:42px;border-radius:50%;background:var(--teal);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:1.1rem;box-shadow:var(--shadow-sm)}
.steps li:after{content:"";position:absolute;left:21px;top:42px;bottom:-2px;width:2px;background:var(--line)}
.steps li:last-child:after{display:none}
.steps li b{display:block;font-size:1.08rem;margin-bottom:3px}

/* tables */
.tbl-wrap{overflow-x:auto;margin:24px 0}
table{border-collapse:collapse;width:100%;background:#fff;border-radius:12px;overflow:hidden;
  box-shadow:var(--shadow-sm);font-size:.95rem}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--teal);color:#fff;font-weight:700}
tr:nth-child(even) td{background:#fbf7f0}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin:0 0 12px;
  padding:4px 20px;box-shadow:var(--shadow-sm)}
.faq summary{font-weight:700;cursor:pointer;padding:14px 0;list-style:none;font-size:1.05rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";float:right;color:var(--teal);font-weight:800}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--ink-soft)}

/* card grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}
.guide-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:.2s;display:flex;flex-direction:column}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);text-decoration:none}
.guide-card .thumb{height:140px;display:flex;align-items:center;justify-content:center}
.guide-card .body{padding:18px 20px;flex:1;display:flex;flex-direction:column}
.guide-card h3{margin:0 0 7px;font-size:1.14rem;color:var(--ink)}
.guide-card p{margin:0 0 12px;color:var(--ink-soft);font-size:.93rem;flex:1}
.guide-card .more{color:var(--teal);font-weight:700;font-size:.9rem}

/* feature strip */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow-sm)}
.feat svg{margin:0 auto 12px}
.feat h3{margin:0 0 6px;font-size:1.1rem}
.feat p{margin:0;color:var(--ink-soft);font-size:.93rem}

/* ---------- Tracker tool ---------- */
.tracker{background:linear-gradient(180deg,#fffdf9,var(--teal-wash));
  border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:var(--shadow)}
.tracker-head{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;margin-bottom:18px}
.tracker h2{margin:0;font-family:var(--serif)}
.field{display:flex;gap:10px;flex-wrap:wrap}
input,select{font:inherit;padding:11px 14px;border:1.5px solid var(--line);border-radius:12px;
  background:#fff;color:var(--ink);min-width:0}
input:focus,select:focus{outline:none;border-color:var(--teal)}
.btn-sm{padding:11px 18px;border:0;border-radius:12px;background:var(--teal);color:#fff;
  font-weight:700;cursor:pointer;font-family:inherit;transition:.15s}
.btn-sm:hover{background:var(--teal-dark)}
.btn-sm.coral{background:var(--coral)}.btn-sm.coral:hover{background:var(--coral-dark)}
.btn-sm.ghost{background:#fff;color:var(--ink-soft);border:1.5px solid var(--line)}
.cat-panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;margin-top:16px}
.cat-panel.empty{text-align:center;color:var(--ink-soft);padding:40px 20px}
.cat-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.cat-tab{padding:8px 16px;border-radius:999px;background:var(--cream);border:1.5px solid var(--line);
  cursor:pointer;font-weight:700;font-size:.92rem}
.cat-tab.active{background:var(--teal);color:#fff;border-color:var(--teal)}
.progress-ring{display:flex;align-items:center;gap:16px;margin-bottom:18px}
.bar{flex:1;height:14px;background:var(--cream);border-radius:999px;overflow:hidden;border:1px solid var(--line)}
.bar>span{display:block;height:100%;background:linear-gradient(90deg,var(--teal-light),var(--teal));border-radius:999px;transition:width .4s}
.skill{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;background:var(--cream)}
.skill-head{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;cursor:pointer;font-weight:700}
.skill-head .pct{font-size:.85rem;color:var(--teal-dark);font-weight:700}
.skill-steps{padding:0 16px 12px;display:none}
.skill.open .skill-steps{display:block}
.skill-steps label{display:flex;gap:10px;align-items:flex-start;padding:8px 0;cursor:pointer;font-weight:500;color:var(--ink-soft);border-top:1px dashed var(--line)}
.skill-steps input[type=checkbox]{min-width:auto;width:20px;height:20px;accent-color:var(--teal);margin-top:3px}
.skill-steps label.done{color:var(--paw);text-decoration:line-through}
.badge-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}
.badge{background:var(--gold);color:#5a3e00;font-weight:800;font-size:.74rem;padding:3px 10px;border-radius:999px}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--teal),var(--teal-dark));color:#fff;border-radius:24px;
  padding:44px;text-align:center;box-shadow:var(--shadow)}
.cta-band h2{font-family:var(--serif);margin:0 0 10px;color:#fff;font-size:1.9rem}
.cta-band p{margin:0 0 22px;color:#d7f5f0;font-size:1.08rem}
.cta-band .btn{background:#fff;color:var(--teal-dark)}
.cta-band .btn:hover{background:var(--cream)}

/* author/expert box inline */
.expert-box{display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);margin:34px 0}
.expert-box img{width:72px;height:72px;border-radius:50%;border:3px solid var(--teal-light);flex:0 0 auto}
.expert-box .name{font-weight:800;font-size:1.05rem}
.expert-box .role{color:var(--ink-soft);font-size:.9rem}
.expert-box .bio{font-size:.92rem;color:var(--ink-soft);margin-top:4px}

/* sources */
.sources{font-size:.88rem;color:var(--ink-soft)}
.sources li{margin-bottom:7px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#cdd5dd;margin-top:40px;padding:48px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.site-footer h4{color:#fff;margin:0 0 14px;font-size:1rem}
.site-footer a{color:#cdd5dd;display:block;padding:4px 0;font-size:.93rem}
.site-footer a:hover{color:var(--teal-light)}
.footer-brand p{font-size:.92rem;color:#9aa5b1;max-width:30em}
.footer-bottom{border-top:1px solid #323f4b;margin-top:30px;padding-top:18px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem;color:#9aa5b1}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;gap:24px;padding:44px 0 36px}
  .hero-art{max-width:380px;margin:0 auto}
  .layout{grid-template-columns:1fr;gap:30px}
  .sidebar{position:static;order:2}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{position:fixed;inset:62px 0 auto 0;background:var(--cream);flex-direction:column;
    align-items:flex-start;padding:18px 22px;gap:6px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-sm);transform:translateY(-130%);transition:.25s;visibility:hidden}
  .nav-links.open{transform:translateY(0);visibility:visible}
  .nav-links a{padding:8px 0;width:100%}
  .menu-toggle{display:block}
}
@media(max-width:520px){
  body{font-size:17px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band,.tracker{padding:24px}
  .btn-ghost{margin-left:0;margin-top:10px}
}