/* ==========================================================================
   VetBoston.com — Site Stylesheet
   A friendly, professional design system for Boston pet health content.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --teal-900:#0b4640;
  --teal-800:#0d5c53;
  --teal-700:#0f766e;
  --teal-600:#149487;
  --teal-500:#17b3a3;
  --teal-100:#e3f7f4;
  --teal-50:#f2fbfa;

  --amber-600:#ea8c14;
  --amber-500:#f59e0b;
  --amber-400:#fbb63e;
  --amber-100:#fff3dc;

  --coral-600:#e8536a;
  --coral-500:#fb7185;
  --coral-100:#ffe6ea;

  --ink-900:#141c22;
  --ink-800:#1f2b33;
  --ink-700:#33424c;
  --ink-600:#4b5c66;
  --ink-500:#6b7c86;
  --ink-300:#aebac1;
  --ink-100:#e7ecee;

  --bg:#fbfaf6;
  --bg-card:#ffffff;
  --border:#e7e2d6;

  --shadow-sm:0 1px 3px rgba(20,28,34,.06), 0 1px 2px rgba(20,28,34,.08);
  --shadow-md:0 8px 24px rgba(20,28,34,.08);
  --shadow-lg:0 18px 45px rgba(15,118,110,.14);

  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;

  --font-head:'Poppins', 'Segoe UI', sans-serif;
  --font-body:'Inter', 'Segoe UI', sans-serif;

  --maxw:1240px;
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  font-family:var(--font-body);
  color:var(--ink-800);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }

a{ color:var(--teal-700); text-decoration:none; }
a:hover{ color:var(--teal-600); }

.container{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}

h1,h2,h3,h4{
  font-family:var(--font-head);
  color:var(--ink-900);
  line-height:1.25;
}

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute; left:-999px; top:auto;
  background:var(--teal-700); color:#fff; padding:10px 18px; border-radius:8px; z-index:999;
}
.skip-link:focus{ left:16px; top:16px; }

/* ---------- Reading progress ---------- */
#reading-progress{
  position:fixed; top:0; left:0; height:3px; width:0%;
  background:linear-gradient(90deg,var(--amber-500),var(--coral-500));
  z-index:1200; transition:width .1s linear;
}

/* ---------- Top utility bar ---------- */
.topbar{
  background:var(--teal-900);
  color:#cdeae6;
  font-size:.82rem;
  padding:7px 0;
}
.topbar .container{
  display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap;
}
.topbar a{ color:#e9fbf8; }
.topbar-tags{ display:flex; gap:1.1rem; flex-wrap:wrap; }
.topbar-tags span{ white-space:nowrap; }

/* ---------- Header ---------- */
header.site-header{
  position:sticky; top:0; z-index:1000;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
  gap:1rem;
}
.logo{
  display:flex; align-items:center; gap:.55rem;
  font-family:var(--font-head); font-weight:800; font-size:1.35rem;
  color:var(--ink-900);
}
.logo .paw{
  display:inline-flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:12px;
  background:linear-gradient(135deg,var(--teal-600),var(--teal-800));
  color:#fff; font-size:1.25rem;
  box-shadow:var(--shadow-sm);
}
.logo .brand-sub{
  display:block; font-family:var(--font-body); font-weight:600; font-size:.68rem;
  color:var(--teal-700); letter-spacing:.06em; text-transform:uppercase; margin-top:1px;
}

nav.main-nav ul{
  list-style:none; display:flex; align-items:center; gap:.35rem;
}
nav.main-nav a{
  display:inline-block; color:var(--ink-700); font-weight:600; font-size:.95rem;
  padding:.55rem .9rem; border-radius:999px; position:relative;
  transition:background .2s,color .2s;
}
nav.main-nav a:hover, nav.main-nav a.active{
  background:var(--teal-100); color:var(--teal-800);
}
.nav-cta{
  background:var(--amber-500) !important; color:#20160a !important;
  box-shadow:var(--shadow-sm);
}
.nav-cta:hover{ background:var(--amber-400) !important; }

.menu-toggle{
  display:none; background:none; border:2px solid var(--border); border-radius:10px;
  width:44px; height:44px; cursor:pointer; align-items:center; justify-content:center;
  color:var(--ink-800);
}
.menu-toggle svg{ width:22px; height:22px; }

/* ---------- Category strip under header (marquee-free, static chips) ---------- */
.cat-strip{
  background:var(--teal-50); border-bottom:1px solid var(--border);
  overflow-x:auto; white-space:nowrap; scrollbar-width:none;
}
.cat-strip::-webkit-scrollbar{ display:none; }
.cat-strip .container{ display:flex; gap:.6rem; padding-top:10px; padding-bottom:10px; }
.chip{
  display:inline-flex; align-items:center; gap:.4rem;
  background:#fff; border:1px solid var(--border); color:var(--ink-700);
  font-size:.85rem; font-weight:600; padding:.4rem .85rem; border-radius:999px;
  white-space:nowrap; transition:all .2s;
}
.chip:hover{ border-color:var(--teal-500); color:var(--teal-700); background:var(--teal-100); }

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  font-size:.85rem; color:var(--ink-500); margin:22px 0 6px;
}
.breadcrumb a{ color:var(--ink-600); font-weight:600; }
.breadcrumb a:hover{ color:var(--teal-700); }

/* ---------- Layout grid ---------- */
.main-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:2.2rem;
  margin:1.2rem 0 3rem;
  align-items:start;
}
.main-grid > .content-col{ min-width:0; }

@media (max-width:900px){
  .main-grid{ grid-template-columns:1fr; }
}

/* ---------- Cards ---------- */
.card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);
}
.card .pad{ padding:2.2rem; }
@media (max-width:600px){ .card .pad{ padding:1.4rem; } }

/* ---------- Article header ---------- */
.article-hero-tag{
  display:inline-block; font-size:.78rem; font-weight:700; letter-spacing:.03em;
  text-transform:uppercase; padding:.3rem .75rem; border-radius:999px;
  background:var(--amber-100); color:var(--amber-600); margin-bottom:.9rem;
}
.article h1{
  font-size:2.35rem; margin-bottom:.9rem; color:var(--ink-900);
}
.article-meta{
  display:flex; align-items:center; gap:.9rem; flex-wrap:wrap;
  color:var(--ink-500); font-size:.92rem; padding-bottom:1.4rem; margin-bottom:1.6rem;
  border-bottom:1px solid var(--border);
}
.avatar{
  width:38px; height:38px; border-radius:50%;
  background:linear-gradient(135deg,var(--teal-500),var(--teal-800));
  color:#fff; display:flex; align-items:center; justify-content:center;
  font-weight:700; font-size:.85rem; font-family:var(--font-head);
}
.article-meta .who{ display:flex; align-items:center; gap:.55rem; color:var(--ink-800); font-weight:600; }
.dot{ opacity:.5; }

/* ---------- Article typography ---------- */
.article h2{
  font-size:1.65rem; margin:2.4rem 0 1rem; padding-bottom:.5rem;
  border-bottom:3px solid var(--teal-100); color:var(--teal-800);
  scroll-margin-top:90px;
}
.article h3{
  font-size:1.25rem; margin:1.6rem 0 .8rem; color:var(--ink-900);
  scroll-margin-top:90px;
}
.article p{ margin-bottom:1.1rem; font-size:1.06rem; color:var(--ink-700); }
.article ul, .article ol{ margin:0 0 1.2rem 1.4rem; }
.article li{ margin-bottom:.5rem; font-size:1.03rem; color:var(--ink-700); }
.article strong{ color:var(--ink-900); }

/* ---------- Table of contents ---------- */
.table-of-contents{
  background:var(--teal-50);
  border:1px solid var(--teal-100);
  border-left:4px solid var(--teal-600);
  border-radius:var(--radius-sm);
  padding:1.5rem 1.7rem;
  margin:1.8rem 0 2.2rem;
}
.table-of-contents h2{
  border:none; margin:0 0 .8rem; font-size:1.05rem;
  text-transform:uppercase; letter-spacing:.04em; color:var(--teal-800);
}
.table-of-contents ul{ list-style:none; margin:0; columns:2; column-gap:2rem; }
.table-of-contents li{ margin-bottom:.5rem; break-inside:avoid; }
.table-of-contents a{ color:var(--ink-700); font-weight:600; font-size:.95rem; }
.table-of-contents a:hover{ color:var(--teal-700); }
@media (max-width:600px){ .table-of-contents ul{ columns:1; } }

/* ---------- Ad slot ---------- */
.ad-slot{
  margin:2.4rem 0;
  padding:.9rem;
  background:#fbfbf9;
  border:1px dashed var(--ink-300);
  border-radius:var(--radius-sm);
  text-align:center;
}
.ad-slot .ad-label{
  display:block; font-size:.68rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--ink-500); margin-bottom:.6rem;
}

/* ---------- Callout / vet tip box ---------- */
.tip-box{
  background:var(--amber-100);
  border:1px solid #f3d9a3;
  border-radius:var(--radius-sm);
  padding:1.3rem 1.5rem;
  margin:1.8rem 0;
  display:flex; gap:.9rem; align-items:flex-start;
}
.tip-box .ic{ font-size:1.4rem; line-height:1; }
.tip-box strong{ display:block; margin-bottom:.25rem; color:var(--ink-900); }
.tip-box p{ margin:0; color:var(--ink-700); font-size:.98rem; }

/* ---------- Disclaimer mini note ---------- */
.vet-note{
  margin:2.4rem 0 0; padding:1.1rem 1.3rem;
  background:var(--teal-50); border-radius:var(--radius-sm);
  font-size:.9rem; color:var(--ink-600); border:1px solid var(--teal-100);
}
.vet-note a{ font-weight:600; }

/* ---------- Author box ---------- */
.author-box{
  display:flex; gap:1.1rem; align-items:flex-start;
  margin-top:2.6rem; padding-top:2rem; border-top:1px solid var(--border);
}
.author-box .avatar{ width:56px; height:56px; font-size:1.1rem; flex:none; }
.author-box h4{ font-size:1.05rem; margin-bottom:.25rem; }
.author-box p{ color:var(--ink-600); font-size:.92rem; margin:0; }

/* ---------- Related articles ---------- */
.related{ margin:3rem 0; }
.related h2{ font-size:1.4rem; margin-bottom:1.1rem; }
.related-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1.2rem;
}
@media (max-width:900px){ .related-grid{ grid-template-columns:1fr; } }
.related-card{
  background:#fff; border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:1.2rem; transition:all .2s;
}
.related-card:hover{ transform:translateY(-3px); box-shadow:var(--shadow-md); border-color:var(--teal-500); }
.related-card .tag{ font-size:.72rem; font-weight:700; color:var(--teal-700); text-transform:uppercase; letter-spacing:.03em; }
.related-card h3{ font-size:1.02rem; margin:.4rem 0; }
.related-card a.stretched{ color:var(--ink-900); }

/* ---------- Sidebar ---------- */
.sidebar{ position:sticky; top:96px; }
.sidebar .widget{ margin-bottom:1.4rem; }
.sidebar .widget h3{
  font-size:1.02rem; text-transform:uppercase; letter-spacing:.03em;
  color:var(--teal-800); margin-bottom:1rem;
}
.sidebar ul{ list-style:none; }
.sidebar li{ margin-bottom:.35rem; }
.sidebar a{
  display:flex; align-items:center; gap:.5rem;
  color:var(--ink-700); padding:.5rem .6rem; border-radius:8px; font-size:.93rem; font-weight:500;
  transition:background .2s,color .2s;
}
.sidebar a:hover{ background:var(--teal-50); color:var(--teal-700); }
.sidebar .cat-heading{
  font-size:.78rem; font-weight:800; text-transform:uppercase; letter-spacing:.04em;
  color:var(--ink-500); margin:1.1rem 0 .4rem; padding-left:.6rem;
}
.sidebar .cat-heading:first-child{ margin-top:0; }

.side-cta{
  background:linear-gradient(150deg,var(--teal-700),var(--teal-900));
  color:#fff; border-radius:var(--radius-md); padding:1.6rem;
}
.side-cta h3{ color:#fff; font-size:1.1rem; margin-bottom:.5rem; text-transform:none; letter-spacing:0; }
.side-cta p{ color:#cfeeea; font-size:.9rem; margin-bottom:1rem; }
.side-cta a.btn{ width:100%; text-align:center; }

.side-disclaimer{
  background:var(--coral-100); border:1px solid #f7c4cd; border-radius:var(--radius-sm);
  padding:1.1rem 1.2rem; font-size:.85rem; color:#7a2331;
}
.side-disclaimer strong{ display:block; margin-bottom:.3rem; color:#7a2331; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.5rem; justify-content:center;
  background:var(--teal-700); color:#fff; font-weight:700; font-size:.95rem;
  padding:.85rem 1.6rem; border-radius:999px; border:none; cursor:pointer;
  transition:all .2s; box-shadow:var(--shadow-sm);
}
.btn:hover{ background:var(--teal-800); color:#fff; transform:translateY(-2px); box-shadow:var(--shadow-md); }
.btn.amber{ background:var(--amber-500); color:#20160a; }
.btn.amber:hover{ background:var(--amber-600); color:#fff; }
.btn.outline{ background:transparent; color:#fff; border:2px solid rgba(255,255,255,.65); box-shadow:none; }
.btn.outline:hover{ background:rgba(255,255,255,.15); }
.btn.ghost{ background:#fff; color:var(--teal-700); border:2px solid var(--teal-100); box-shadow:none; }
.btn.ghost:hover{ background:var(--teal-50); }

/* ---------- Hero (home) ---------- */
.hero{
  background:radial-gradient(120% 160% at 15% 0%, var(--teal-600), var(--teal-900) 70%);
  color:#fff; border-radius:var(--radius-lg); padding:3.6rem 2.8rem; margin:2rem 0 3rem;
  position:relative; overflow:hidden;
}
.hero::after{
  content:"🐾"; position:absolute; right:-20px; bottom:-40px; font-size:14rem; opacity:.08;
  transform:rotate(-12deg);
}
.hero-inner{ max-width:640px; position:relative; z-index:1; }
.hero .eyebrow{
  display:inline-flex; align-items:center; gap:.4rem;
  background:rgba(255,255,255,.14); padding:.4rem .9rem; border-radius:999px;
  font-size:.82rem; font-weight:700; margin-bottom:1.1rem;
}
.hero h1{ color:#fff; font-size:2.9rem; margin-bottom:1rem; }
.hero p{ font-size:1.15rem; color:#dff3f0; margin-bottom:1.8rem; max-width:540px; }
.hero-buttons{ display:flex; gap:1rem; flex-wrap:wrap; margin-bottom:2.2rem; }
.hero-stats{ display:flex; gap:2.2rem; flex-wrap:wrap; }
.hero-stats div{ }
.hero-stats strong{ display:block; font-family:var(--font-head); font-size:1.5rem; }
.hero-stats span{ font-size:.82rem; color:#bfe6e0; }

@media (max-width:700px){
  .hero{ padding:2.6rem 1.6rem; }
  .hero h1{ font-size:2.1rem; }
}

/* ---------- Section heading ---------- */
.section-head{ text-align:center; margin-bottom:2rem; }
.section-head .eyebrow{
  color:var(--teal-700); font-weight:700; text-transform:uppercase; font-size:.8rem;
  letter-spacing:.06em; display:block; margin-bottom:.5rem;
}
.section-head h2{ font-size:2rem; }
.section-head p{ color:var(--ink-600); max-width:560px; margin:.6rem auto 0; }

/* ---------- Category cards (home) ---------- */
.categories-grid{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:1.4rem; margin:2.6rem 0;
}
.category-card{
  background:#fff; border:1px solid var(--border); border-radius:var(--radius-md);
  padding:1.8rem; transition:all .25s; border-top:4px solid var(--teal-600);
}
.category-card:nth-child(2){ border-top-color:var(--amber-500); }
.category-card:nth-child(3){ border-top-color:var(--coral-500); }
.category-card:nth-child(4){ border-top-color:var(--teal-800); }
.category-card:nth-child(5){ border-top-color:var(--amber-600); }
.category-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-lg); }
.category-icon{
  width:54px; height:54px; border-radius:14px; background:var(--teal-50);
  display:flex; align-items:center; justify-content:center; font-size:1.7rem; margin-bottom:1rem;
}
.category-card h3{ font-size:1.15rem; margin-bottom:.4rem; }
.category-card p{ color:var(--ink-600); font-size:.92rem; margin-bottom:1rem; }
.category-card ul{ list-style:none; }
.category-card li{ margin-bottom:.5rem; }
.category-card a{ color:var(--ink-700); font-weight:600; font-size:.92rem; }
.category-card a:hover{ color:var(--teal-700); }
.category-card .see-all{ display:inline-block; margin-top:.6rem; font-size:.85rem; color:var(--teal-700); font-weight:700; }

/* ---------- Featured / article grid (home) ---------- */
.featured-grid{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(270px,1fr)); gap:1.5rem; margin:2rem 0 3rem;
}
.post-card{
  background:#fff; border:1px solid var(--border); border-radius:var(--radius-md);
  overflow:hidden; transition:all .25s; display:flex; flex-direction:column;
}
.post-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-lg); border-color:var(--teal-500); }
.post-card .thumb{
  height:150px; display:flex; align-items:center; justify-content:center; font-size:2.6rem;
  background:linear-gradient(135deg,var(--teal-100),var(--teal-50));
  color:var(--teal-700);
}
.post-card.thumb-img .thumb{ height:180px; padding:0; }
.post-card.thumb-img .thumb img{ width:100%; height:100%; object-fit:cover; }
.post-card .body{ padding:1.4rem; flex:1; display:flex; flex-direction:column; }
.post-card .tag{
  font-size:.7rem; font-weight:800; text-transform:uppercase; letter-spacing:.04em;
  color:var(--teal-700); margin-bottom:.5rem;
}
.post-card h3{ font-size:1.08rem; margin-bottom:.5rem; }
.post-card p{ color:var(--ink-600); font-size:.9rem; margin-bottom:1rem; flex:1; }
.post-card .meta-row{
  display:flex; justify-content:space-between; align-items:center; font-size:.8rem; color:var(--ink-500);
  padding-top:.8rem; border-top:1px solid var(--border);
}
.post-card .read-more{ font-weight:700; color:var(--teal-700); }

/* ---------- All articles index list ---------- */
.all-articles{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:1rem; margin:1.5rem 0 3rem;
}
.all-articles a{
  background:#fff; border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:1rem 1.2rem; display:flex; align-items:center; gap:.8rem; color:var(--ink-800); font-weight:600;
  transition:all .2s;
}
.all-articles a:hover{ background:var(--teal-700); color:#fff; border-color:var(--teal-700); transform:translateY(-2px); }
.all-articles a .n{
  flex:none; width:30px; height:30px; border-radius:50%; background:var(--teal-100); color:var(--teal-800);
  display:flex; align-items:center; justify-content:center; font-size:.8rem; font-weight:800;
}
.all-articles a:hover .n{ background:rgba(255,255,255,.2); color:#fff; }

/* ---------- Trust strip ---------- */
.trust-strip{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:1rem; margin:2.4rem 0;
}
.trust-item{
  background:#fff; border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:1.1rem; text-align:center; font-size:.85rem; font-weight:700; color:var(--ink-700);
}
.trust-item .ic{ font-size:1.5rem; display:block; margin-bottom:.4rem; }

/* ---------- Newsletter band ---------- */
.newsletter{
  background:var(--amber-100); border:1px solid #f3d9a3; border-radius:var(--radius-lg);
  padding:2.4rem; text-align:center; margin:3rem 0;
}
.newsletter h2{ font-size:1.5rem; margin-bottom:.5rem; }
.newsletter p{ color:var(--ink-600); margin-bottom:1.3rem; }
.newsletter-form{ display:flex; gap:.6rem; max-width:420px; margin:0 auto; flex-wrap:wrap; justify-content:center; }
.newsletter-form input{
  flex:1; min-width:200px; padding:.85rem 1.1rem; border-radius:999px; border:1px solid var(--border); font-size:.95rem;
}

/* ---------- Story page (rescue stories) special accents ---------- */
.story-hero{
  border-radius:var(--radius-lg); overflow:hidden; margin:1.5rem 0 2rem; position:relative;
}
.story-hero img{ width:100%; height:340px; object-fit:cover; }
.story-hero .cap{
  position:absolute; left:0; bottom:0; right:0; padding:1.6rem;
  background:linear-gradient(0deg,rgba(11,70,64,.88),transparent);
  color:#fff;
}
.story-hero .cap span{ font-size:.78rem; text-transform:uppercase; letter-spacing:.05em; color:var(--amber-400); font-weight:700; }
.story-hero .cap h1{ color:#fff; margin:.3rem 0 0; font-size:1.9rem; }
.story-nav{ display:flex; justify-content:space-between; gap:1rem; margin:2.4rem 0; flex-wrap:wrap; }
.story-nav a{
  flex:1; min-width:220px; background:#fff; border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:1.1rem 1.3rem; font-weight:700; color:var(--ink-800); transition:all .2s;
}
.story-nav a:hover{ border-color:var(--teal-600); background:var(--teal-50); }
.story-nav .lbl{ display:block; font-size:.75rem; text-transform:uppercase; color:var(--ink-500); font-weight:700; margin-bottom:.2rem; }

.story-inline-img{
  width:100%; border-radius:var(--radius-md); margin:1.8rem 0; box-shadow:var(--shadow-md);
}

/* ---------- Legal pages ---------- */
.legal p{ margin-bottom:1rem; color:var(--ink-700); }
.legal h2{ border:none; }
.legal ul{ margin:0 0 1.2rem 1.4rem; }

/* ---------- Contact form ---------- */
.contact-grid{ display:grid; grid-template-columns:1.2fr 1fr; gap:2rem; }
@media (max-width:800px){ .contact-grid{ grid-template-columns:1fr; } }
.form-group{ margin-bottom:1.3rem; }
.form-group label{ display:block; font-weight:600; margin-bottom:.4rem; font-size:.92rem; color:var(--ink-800); }
.form-group input, .form-group textarea{
  width:100%; padding:.85rem 1rem; border:1px solid var(--border); border-radius:10px;
  font-size:.97rem; font-family:var(--font-body); background:#fff;
}
.form-group input:focus, .form-group textarea:focus{
  outline:none; border-color:var(--teal-500); box-shadow:0 0 0 3px var(--teal-100);
}
.contact-info-card{ background:var(--teal-50); border:1px solid var(--teal-100); }
.contact-info-card h3{ font-size:1rem; color:var(--teal-800); margin:1.2rem 0 .4rem; }
.contact-info-card h3:first-child{ margin-top:0; }

/* ---------- Back to top ---------- */
#back-to-top{
  position:fixed; right:1.4rem; bottom:1.4rem; z-index:900;
  width:48px; height:48px; border-radius:50%; background:var(--teal-700); color:#fff;
  display:flex; align-items:center; justify-content:center; box-shadow:var(--shadow-md);
  border:none; cursor:pointer; opacity:0; pointer-events:none; transition:opacity .25s, transform .25s;
}
#back-to-top.show{ opacity:1; pointer-events:auto; }
#back-to-top:hover{ transform:translateY(-3px); }

/* ---------- Footer ---------- */
footer.site-footer{
  background:var(--ink-900); color:#c7d1d6; margin-top:4rem; padding:3.6rem 0 1.6rem;
}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:2.2rem; margin-bottom:2.4rem;
}
@media (max-width:800px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:500px){ .footer-grid{ grid-template-columns:1fr; } }
.footer-brand{ display:flex; align-items:center; gap:.6rem; font-family:var(--font-head); font-weight:800; font-size:1.2rem; color:#fff; margin-bottom:.8rem; }
.footer-grid p{ font-size:.9rem; color:#9fb0b6; margin-bottom:1rem; }
.footer-grid h4{ color:#fff; font-size:.9rem; text-transform:uppercase; letter-spacing:.04em; margin-bottom:1rem; }
.footer-grid ul{ list-style:none; }
.footer-grid li{ margin-bottom:.6rem; }
.footer-grid a{ color:#aebac1; font-size:.9rem; }
.footer-grid a:hover{ color:#fff; }
.footer-social{ display:flex; gap:.7rem; margin-top:1rem; }
.footer-social a{
  width:36px; height:36px; border-radius:50%; background:rgba(255,255,255,.08);
  display:flex; align-items:center; justify-content:center; color:#fff; font-size:.9rem;
}
.footer-social a:hover{ background:var(--teal-600); }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1); padding-top:1.5rem;
  display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; font-size:.83rem; color:#8595a0;
}
.footer-bottom a{ color:#8595a0; }
.footer-bottom a:hover{ color:#fff; }

/* ---------- Mobile nav ---------- */
@media (max-width:900px){
  .menu-toggle{ display:flex; }
  nav.main-nav{
    position:fixed; inset:0 0 0 auto; top:0; height:100vh; width:min(320px,86vw);
    background:#fff; box-shadow:-10px 0 30px rgba(0,0,0,.15);
    transform:translateX(100%); transition:transform .3s ease; z-index:1100;
    padding:1.6rem;
  }
  nav.main-nav.open{ transform:translateX(0); }
  nav.main-nav ul{ flex-direction:column; align-items:stretch; gap:.3rem; margin-top:2.6rem; }
  nav.main-nav a{ padding:.9rem 1rem; border-radius:10px; }
  .nav-close{
    position:absolute; top:1.2rem; right:1.2rem; background:none; border:none; font-size:1.5rem; cursor:pointer; color:var(--ink-700);
  }
  .nav-backdrop{
    display:none; position:fixed; inset:0; background:rgba(10,20,20,.4); z-index:1050;
  }
  .nav-backdrop.open{ display:block; }
}

/* ---------- Utility ---------- */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; }
.small{ font-size:.85rem; color:var(--ink-500); }