/* ============================================================
   buykayaks.co — design system
   Palette: lake-teal + kayak-yellow on warm sand
   Type: Sora (display) · Inter (body) · Space Mono (specs)
   Signature: topographic contour motif + waterline rule
   ============================================================ */

:root{
  --ink:#0e211e;
  --teal-900:#0b3a36;
  --teal-700:#0f5f57;
  --teal-600:#127068;
  --teal-500:#1a897c;
  --teal-300:#5cb9aa;
  --teal-100:#d6ece6;
  --foam:#eaf4f0;
  --sand:#f8f4ec;
  --sand-200:#efe6d5;
  --sand-300:#e4d8c2;
  --yellow:#ffc233;
  --yellow-deep:#f3a72a;
  --orange:#ff7a3c;
  --line:#e0e8e3;
  --card:#ffffff;
  --muted:#5e716c;
  --muted-2:#7d8d88;

  --maxw:1160px;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-sm:0 1px 2px rgba(14,33,30,.06), 0 2px 8px rgba(14,33,30,.05);
  --shadow-md:0 6px 20px rgba(11,58,54,.10), 0 2px 6px rgba(11,58,54,.06);
  --shadow-lg:0 24px 60px rgba(11,58,54,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--ink);
  background:var(--sand);
  line-height:1.62;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--teal-700);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--teal-500)}
h1,h2,h3,h4{font-family:"Sora",system-ui,sans-serif;line-height:1.12;letter-spacing:-.02em;color:var(--ink);font-weight:700}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.eyebrow{
  font-family:"Space Mono",ui-monospace,monospace;
  font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--teal-600);font-weight:700;
}
:focus-visible{outline:3px solid var(--yellow-deep);outline-offset:2px;border-radius:4px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:"Sora",sans-serif;font-weight:600;font-size:.96rem;
  padding:.74em 1.25em;border-radius:999px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .16s var(--ease),box-shadow .2s var(--ease),background .2s;
  white-space:nowrap;line-height:1;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--teal-700);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--teal-600);color:#fff;box-shadow:var(--shadow-md);transform:translateY(-1px)}
.btn-yellow{background:var(--yellow);color:#3a2c06;box-shadow:var(--shadow-sm)}
.btn-yellow:hover{background:var(--yellow-deep);color:#3a2c06;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-ghost{background:transparent;color:var(--teal-700);border-color:var(--teal-300)}
.btn-ghost:hover{background:var(--foam);color:var(--teal-700)}
.btn-sm{padding:.56em .95em;font-size:.85rem}
.btn-block{width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(248,244,236,.82);
  backdrop-filter:saturate(160%) blur(12px);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:68px}
.brand{display:flex;align-items:center;gap:.6rem;font-family:"Sora",sans-serif;font-weight:700;font-size:1.18rem;letter-spacing:-.02em;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand .mark{width:34px;height:34px;border-radius:9px;flex:none}
.brand b{color:var(--teal-700)}
.nav-links{display:flex;align-items:center;gap:.3rem;list-style:none}
.nav-links a{
  font-family:"Sora",sans-serif;font-weight:500;font-size:.92rem;color:var(--ink);
  padding:.5em .72em;border-radius:9px;transition:background .16s,color .16s;
}
.nav-links a:hover{background:var(--foam);color:var(--teal-700)}
.nav-toggle{display:none;background:none;border:1.5px solid var(--line);border-radius:9px;padding:.45em .6em;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--teal-900)}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.92}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,40,37,.34) 0%,rgba(8,40,37,.20) 38%,rgba(8,40,37,.74) 100%),
             linear-gradient(90deg,rgba(8,40,37,.55) 0%,rgba(8,40,37,0) 60%);
}
.hero-inner{position:relative;z-index:2;padding:clamp(3.5rem,8vw,6.5rem) 0 clamp(3rem,6vw,5rem)}
.hero h1{color:#fff;font-size:clamp(2.3rem,5.6vw,4rem);max-width:16ch;font-weight:800}
.hero h1 em{font-style:normal;color:var(--yellow);}
.hero p.lede{color:#dceae5;font-size:clamp(1.05rem,1.6vw,1.28rem);max-width:48ch;margin:1.1rem 0 1.9rem;line-height:1.55}
.hero .eyebrow{color:var(--yellow)}
.hero-cta{display:flex;gap:.7rem;flex-wrap:wrap}
.hero-meta{display:flex;gap:1.6rem;flex-wrap:wrap;margin-top:2.2rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.16)}
.hero-meta div{color:#cfe2dc}
.hero-meta .n{font-family:"Space Mono",monospace;font-size:1.5rem;color:#fff;font-weight:700;letter-spacing:-.02em}
.hero-meta .l{font-size:.82rem;color:#a9c5bd}

/* waterline signature divider */
.waterline{height:14px;background:
  repeating-linear-gradient(90deg,transparent 0 8px,rgba(255,255,255,.0) 8px 16px);
  position:relative}
.section-rule{display:flex;align-items:center;gap:1rem;margin:0 0 1.6rem}
.section-rule h2{font-size:clamp(1.6rem,3vw,2.1rem)}
.section-rule .ripple{flex:1;height:0;border-bottom:2px solid var(--line);position:relative;top:2px}

/* ---------- sections ---------- */
section{padding:clamp(3rem,6vw,4.5rem) 0}
.section-head{max-width:60ch;margin-bottom:2rem}
.section-head .eyebrow{margin-bottom:.6rem;display:block}
.section-head h2{font-size:clamp(1.7rem,3.2vw,2.3rem)}
.section-head p{color:var(--muted);margin-top:.6rem;font-size:1.05rem}
.bg-foam{background:var(--foam)}
.bg-sand2{background:var(--sand-200)}

/* ---------- category grid ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem}
.cat-card{
  position:relative;border-radius:var(--r-md);overflow:hidden;background:var(--card);
  box-shadow:var(--shadow-sm);border:1px solid var(--line);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  display:flex;flex-direction:column;min-height:236px;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.cat-card .ph{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--teal-100)}
.cat-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.cat-card:hover .ph img{transform:scale(1.05)}
.cat-card .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,58,54,0) 50%,rgba(11,58,54,.45) 100%)}
.cat-card .body{padding:1rem 1.1rem 1.15rem;display:flex;flex-direction:column;gap:.35rem;flex:1}
.cat-card h3{font-size:1.15rem}
.cat-card p{color:var(--muted);font-size:.93rem;line-height:1.5;flex:1}
.cat-card .go{font-family:"Sora",sans-serif;font-weight:600;font-size:.9rem;color:var(--teal-700);display:inline-flex;align-items:center;gap:.3em;margin-top:.2rem}
.cat-card:hover .go{gap:.55em}

/* ---------- product cards ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.prod-grid.two{grid-template-columns:repeat(2,1fr)}
.prod{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:1.25rem 1.25rem 1.35rem;display:flex;flex-direction:column;gap:.7rem;
  box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s;
  position:relative;overflow:hidden;
}
.prod:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--teal-300)}
.prod .glyph{
  width:100%;height:120px;border-radius:var(--r-sm);
  background:linear-gradient(135deg,var(--foam),var(--teal-100));
  display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.prod .glyph svg{width:90%;height:auto}
.prod .pic{width:100%;aspect-ratio:1/1;border-radius:var(--r-sm);overflow:hidden;background:var(--foam)}
.prod .pic img{width:100%;height:100%;object-fit:cover}
.prod h3{font-size:1.1rem;line-height:1.2}
.prod .tier{
  font-family:"Space Mono",monospace;font-size:.72rem;font-weight:700;letter-spacing:.06em;
  color:var(--teal-700);background:var(--teal-100);padding:.18em .6em;border-radius:999px;align-self:flex-start;
}
.prod p{color:var(--muted);font-size:.92rem;line-height:1.5;flex:1}
.specs{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.1rem}
.spec{
  font-family:"Space Mono",monospace;font-size:.68rem;letter-spacing:.02em;
  color:var(--teal-900);background:var(--sand-200);border:1px solid var(--sand-300);
  padding:.22em .55em;border-radius:6px;white-space:nowrap;
}
.spec b{color:var(--teal-700);font-weight:700}
.prod .buy{display:flex;gap:.5rem;margin-top:.3rem}
.prod .buy .btn{flex:1}

.disclosure-inline{font-size:.78rem;color:var(--muted-2);margin-top:.2rem}

/* ---------- FTC bar ---------- */
.ftc{background:var(--teal-900);color:#bfd8d1;font-size:.82rem;text-align:center;padding:.7rem 1rem;line-height:1.5}
.ftc a{color:var(--yellow)}

/* ---------- cross-sell / marine ring ---------- */
.ring{background:var(--teal-900);color:#e6f1ed;position:relative;overflow:hidden}
.ring .wrap{position:relative;z-index:2}
.ring .eyebrow{color:var(--yellow)}
.ring h2{color:#fff;font-size:clamp(1.6rem,3vw,2.1rem);margin:.5rem 0 .4rem}
.ring p{color:#bcd4cd;max-width:58ch;margin-bottom:1.6rem}
.ring-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.9rem}
.ring-card{
  display:block;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:1.1rem 1.1rem 1.2rem;transition:background .18s,transform .18s var(--ease),border-color .18s;
}
.ring-card:hover{background:rgba(255,255,255,.10);transform:translateY(-3px);border-color:var(--yellow)}
.ring-card .rc-name{font-family:"Sora",sans-serif;font-weight:700;color:#fff;font-size:1.02rem}
.ring-card .rc-desc{color:#a9c5bd;font-size:.86rem;margin-top:.25rem;line-height:1.45}
.ring-card .rc-go{color:var(--yellow);font-size:.82rem;font-family:"Space Mono",monospace;margin-top:.6rem;display:inline-block}

/* ---------- prose / guide ---------- */
.prose{max-width:72ch;margin:0 auto}
.prose.left{margin:0}
.prose h2{font-size:clamp(1.5rem,2.6vw,2rem);margin:2.4rem 0 .9rem}
.prose h3{font-size:1.28rem;margin:1.8rem 0 .6rem}
.prose p{margin:0 0 1.05rem;color:#27403b}
.prose ul,.prose ol{margin:0 0 1.2rem 1.3rem}
.prose li{margin:.4rem 0;color:#27403b}
.prose strong{color:var(--ink)}
.callout{
  background:var(--foam);border-left:4px solid var(--teal-500);
  border-radius:0 var(--r-sm) var(--r-sm) 0;padding:1.1rem 1.3rem;margin:1.6rem 0;
}
.callout .eyebrow{display:block;margin-bottom:.35rem}
.callout p:last-child{margin-bottom:0}
.toc{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:1.2rem 1.4rem;margin-bottom:2rem}
.toc .eyebrow{display:block;margin-bottom:.6rem}
.toc ol{margin:0;padding-left:1.2rem;columns:2;column-gap:2rem}
.toc li{margin:.3rem 0}

/* ---------- page hero (interior) ---------- */
.page-hero{background:linear-gradient(160deg,var(--teal-900),var(--teal-700));color:#fff;padding:clamp(2.6rem,6vw,4rem) 0}
.page-hero .eyebrow{color:var(--yellow)}
.page-hero h1{color:#fff;font-size:clamp(2rem,4.6vw,3rem);margin:.5rem 0 .6rem;max-width:20ch}
.page-hero p{color:#cfe2dc;max-width:60ch;font-size:1.08rem}
.crumbs{font-family:"Space Mono",monospace;font-size:.76rem;color:rgba(255,255,255,.7);margin-bottom:.4rem}
.crumbs a{color:rgba(255,255,255,.85)}

/* ---------- contact form ---------- */
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(1.4rem,3vw,2.2rem);box-shadow:var(--shadow-sm);max-width:620px}
.field{margin-bottom:1.1rem}
.field label{display:block;font-family:"Sora",sans-serif;font-weight:600;font-size:.9rem;margin-bottom:.4rem}
.field input,.field textarea{
  width:100%;font-family:inherit;font-size:1rem;color:var(--ink);
  background:var(--sand);border:1.5px solid var(--line);border-radius:var(--r-sm);
  padding:.75em .9em;transition:border-color .16s,box-shadow .16s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--teal-500);box-shadow:0 0 0 3px var(--teal-100)}
.field textarea{min-height:140px;resize:vertical}

/* ---------- two-col feature ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:2.4rem;align-items:center}
.split img{border-radius:var(--r-lg);box-shadow:var(--shadow-md);width:100%}
.split-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md)}

/* ---------- pills / quick nav ---------- */
.pills{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:1.3rem}
.pill{
  font-family:"Sora",sans-serif;font-weight:500;font-size:.86rem;
  background:var(--card);border:1.5px solid var(--line);border-radius:999px;padding:.45em .95em;color:var(--ink);
  transition:border-color .16s,background .16s,color .16s;
}
.pill:hover{border-color:var(--teal-300);background:var(--foam);color:var(--teal-700)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#bcd0ca;padding:3rem 0 2rem;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:1.8rem;margin-bottom:2rem}
.foot-grid h4{color:#fff;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;font-family:"Space Mono",monospace;margin-bottom:.9rem;font-weight:700}
.foot-grid ul{list-style:none}
.foot-grid li{margin:.45rem 0}
.foot-grid a{color:#bcd0ca}
.foot-grid a:hover{color:var(--yellow)}
.foot-brand{display:flex;align-items:center;gap:.6rem;font-family:"Sora",sans-serif;font-weight:700;color:#fff;font-size:1.1rem;margin-bottom:.7rem}
.foot-brand .mark{width:30px;height:30px;border-radius:8px}
.foot-about{color:#9fb6b0;max-width:34ch;font-size:.88rem;line-height:1.55}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:1.4rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;color:#8ba49d;font-size:.82rem}
.foot-bottom .disc{max-width:62ch}

/* ---------- 404 ---------- */
.notfound{min-height:64vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:3rem 0;background:linear-gradient(160deg,var(--teal-900),var(--teal-700));color:#fff}
.notfound .code{font-family:"Space Mono",monospace;font-size:clamp(4rem,16vw,9rem);font-weight:700;color:var(--yellow);line-height:1;letter-spacing:-.04em}
.notfound h1{color:#fff;margin:.4rem 0 .7rem;font-size:clamp(1.5rem,4vw,2.2rem)}
.notfound p{color:#cfe2dc;max-width:46ch;margin:0 auto 1.6rem}

/* ---------- misc ---------- */
.center{text-align:center}
.mt-2{margin-top:2rem}
.lead-row{display:flex;gap:.7rem;flex-wrap:wrap;align-items:center;margin-top:1.4rem}
.note{font-size:.86rem;color:var(--muted)}
hr.soft{border:none;border-top:1px solid var(--line);margin:2.4rem 0}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .cat-grid,.prod-grid,.prod-grid.two{grid-template-columns:repeat(2,1fr)}
  .ring-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:1.6rem}
  .toc ol{columns:1}
}
@media(max-width:620px){
  body{font-size:16px}
  .nav-links{
    display:none;position:absolute;top:68px;left:0;right:0;
    background:var(--sand);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:.5rem;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:.8em 1em;border-radius:8px}
  .nav-toggle{display:block}
  .cat-grid,.prod-grid,.prod-grid.two,.ring-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:1.3rem}
  .hero-meta{gap:1.1rem}
  .prod .buy{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* ---------- photo page-hero (interior) ---------- */
.page-hero.photo{position:relative;overflow:hidden;background:#0b3a36}
.page-hero.photo .ph-bg{position:absolute;inset:0;z-index:0}
.page-hero.photo .ph-bg img{width:100%;height:100%;object-fit:cover;opacity:.55}
.page-hero.photo .ph-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(155deg,rgba(8,40,37,.90) 0%,rgba(11,58,54,.74) 55%,rgba(15,95,87,.62) 100%)}
.page-hero.photo .wrap{position:relative;z-index:2}

/* ---------- feature figure ---------- */
.feature-fig{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md);background:var(--foam)}
.feature-fig img{width:100%;display:block}
.feature-cap{font-family:"Space Mono",monospace;font-size:.72rem;letter-spacing:.04em;color:var(--muted);
  padding:.55rem .9rem;background:var(--card);border-top:1px solid var(--line)}