/* =========================================================
   HomeRivox — Material Design Inspired Design System
   White + Indigo Blue + Amber accent
   ========================================================= */

:root{
  --indigo:#3F51B5;
  --indigo-dark:#303F9F;
  --indigo-light:#C5CAE9;
  --amber:#FFC107;
  --amber-dark:#FFA000;
  --white:#FFFFFF;
  --surface:#FAFAFA;
  --ink:#212121;
  --muted:#757575;
  --line:#E0E0E0;
  --radius-md:8px;
  --radius-lg:16px;
  --maxw:1240px;
  --pad:clamp(20px,4vw,48px);
  --font:'Roboto',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --e1:0 1px 3px rgba(0,0,0,.14),0 1px 2px rgba(0,0,0,.20);
  --e2:0 3px 8px rgba(0,0,0,.16),0 2px 4px rgba(0,0,0,.14);
  --e3:0 10px 24px rgba(0,0,0,.18),0 6px 8px rgba(0,0,0,.14);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font);font-weight:400;color:var(--ink);
  background:var(--surface);line-height:1.7;-webkit-font-smoothing:antialiased;font-size:16.5px;
}
img{max-width:100%;display:block;height:auto;border-radius:4px;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);}
.screen-reader-text{position:absolute;left:-9999px;}

h1,h2,h3,h4{font-family:var(--font);font-weight:500;letter-spacing:0;margin:0 0 .5em;color:var(--ink);}
p{margin:0 0 1.2em;}

.eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;font-size:12.5px;font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;color:var(--indigo);background:var(--indigo-light);padding:.4rem 1rem;border-radius:999px;margin-bottom:1.1rem;
}

/* Ripple-style hover feedback for interactive elements */
.ripple{position:relative;overflow:hidden;}
.ripple::after{
  content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,rgba(63,81,181,.14) 0%,transparent 70%);
  opacity:0;transition:opacity .3s ease;pointer-events:none;
}
.ripple:hover::after{opacity:1;}

/* =========== APP BAR (Material header, indigo, elevated) =========== */
.site-header{position:sticky;top:0;z-index:100;background:var(--indigo);box-shadow:var(--e2);}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px;}
.site-logo img{height:34px;width:auto;display:block;}
.site-logo{display:flex;align-items:center;}

.primary-nav ul{display:flex;gap:.4rem;align-items:center;}
.primary-nav a{font-size:14.5px;font-weight:500;color:var(--white);padding:.6rem 1rem;border-radius:var(--radius-md);}
.primary-nav a:hover{background:rgba(255,255,255,.12);}

.header-actions{display:flex;align-items:center;gap:.6rem;}
.header-search{position:relative;}
.header-search input[type="search"]{
  width:180px;padding:.55rem 1rem .55rem 2.2rem;border-radius:999px;border:none;
  background:rgba(255,255,255,.16);font-family:var(--font);font-size:13.5px;color:var(--white);
  transition:background .2s, width .2s;
}
.header-search input[type="search"]::placeholder{color:rgba(255,255,255,.75);}
.header-search input[type="search"]:focus{outline:none;background:rgba(255,255,255,.28);width:220px;}
.header-search svg{position:absolute;left:.75rem;top:50%;transform:translateY(-50%);width:14px;height:14px;stroke:rgba(255,255,255,.85);pointer-events:none;}

.menu-toggle{display:none;background:none;border:0;padding:8px;}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--white);margin:5px 0;}

/* =========== FLOATING ACTION BUTTON — fixed search shortcut =========== */
.fab-search{
  position:fixed;right:24px;bottom:24px;z-index:150;width:56px;height:56px;border-radius:50%;
  background:var(--amber);box-shadow:var(--e3);display:flex;align-items:center;justify-content:center;
  border:none;transition:transform .2s ease, box-shadow .2s ease;
}
.fab-search:hover{transform:scale(1.08);box-shadow:0 14px 28px rgba(0,0,0,.24);}
.fab-search svg{width:22px;height:22px;stroke:var(--ink);}

.fab-panel{
  position:fixed;right:24px;bottom:90px;z-index:150;background:var(--white);border-radius:var(--radius-md);
  box-shadow:var(--e3);padding:1rem;width:280px;display:none;
}
.fab-panel.is-open{display:block;}
.fab-panel input[type="search"]{width:100%;padding:.7rem 1rem;border-radius:var(--radius-md);border:1px solid var(--line);font-family:var(--font);}

/* =========== HERO — single elevated Material card (not full-bleed) =========== */
.hero-wrap{padding:clamp(32px,5vw,56px) var(--pad) 0;}
.hero{
  max-width:var(--maxw);margin:0 auto;background:var(--white);border-radius:var(--radius-lg);
  box-shadow:var(--e3);overflow:hidden;display:grid;grid-template-columns:1fr 1fr;align-items:stretch;
}
.hero-copy{padding:clamp(2rem,4vw,3.2rem);display:flex;flex-direction:column;justify-content:center;}
.hero-copy h1{font-size:clamp(1.9rem,3.8vw,2.6rem);line-height:1.18;margin-bottom:.9rem;font-weight:500;}
.hero-copy p.lead{color:var(--muted);font-size:1.02rem;margin-bottom:1.6rem;}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.7rem;border-radius:var(--radius-md);
  font-weight:500;font-size:14.5px;transition:all .2s ease;letter-spacing:.02em;
}
.btn-primary{background:var(--indigo);color:var(--white);box-shadow:var(--e1);}
.btn-primary:hover{background:var(--indigo-dark);box-shadow:var(--e2);}
.btn-secondary{background:var(--white);color:var(--indigo);border:1px solid var(--indigo-light);}
.btn-secondary:hover{background:var(--indigo-light);}
.hero-media{position:relative;min-height:280px;}
.hero-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}

/* =========== TRUST STRIP — Material chip row =========== */
.trust-strip{padding:2rem var(--pad) 0;}
.trust-row{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:center;gap:.9rem;flex-wrap:wrap;}
.trust-chip{background:var(--white);border-radius:999px;padding:.65rem 1.3rem;display:flex;align-items:center;gap:.6rem;box-shadow:var(--e1);}
.trust-chip .num{font-weight:700;color:var(--indigo);font-size:1rem;}
.trust-chip .label{font-size:12px;color:var(--muted);}

/* =========== PILLAR CARDS — elevation tier 1, ripple hover =========== */
.pillars{padding:clamp(56px,7vw,90px) var(--pad);}
.section-head{max-width:640px;margin:0 auto 2.6rem;text-align:center;}
.section-head h2{font-size:clamp(1.8rem,3.4vw,2.3rem);}
.section-head p{color:var(--muted);}

.pillar-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;}
.pillar-item{
  background:var(--white);border-radius:var(--radius-md);padding:1.5rem;text-align:center;
  box-shadow:var(--e1);transition:box-shadow .2s ease, transform .2s ease;
}
.pillar-item:hover{box-shadow:var(--e3);transform:translateY(-4px);}
.pillar-icon{width:46px;height:46px;margin:0 auto 1rem;border-radius:50%;background:var(--indigo-light);display:flex;align-items:center;justify-content:center;}
.pillar-icon svg{width:22px;height:22px;stroke:var(--indigo);}
.pillar-item h3{font-size:1rem;margin-bottom:.3rem;}
.pillar-item p{font-size:12.5px;color:var(--muted);margin:0;}

/* =========== GUIDE FEED — elevation-tier card grid =========== */
.resource-feed{padding:clamp(56px,7vw,90px) var(--pad);}
.card-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
.guide-card{background:var(--white);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--e1);transition:box-shadow .2s ease, transform .2s ease;}
.guide-card:hover{box-shadow:var(--e3);transform:translateY(-4px);}
.guide-card .thumb{aspect-ratio:16/10;overflow:hidden;position:relative;}
.guide-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.guide-cat-chip{
  position:absolute;top:.8rem;left:.8rem;background:var(--amber);color:var(--ink);font-size:11px;font-weight:700;
  padding:.3rem .7rem;border-radius:999px;
}
.guide-card .body{padding:1.3rem 1.4rem 1.5rem;}
.guide-card h3{font-size:1.05rem;margin-bottom:.5rem;font-weight:500;}
.guide-card h3 a:hover{color:var(--indigo);}
.guide-card .excerpt{font-size:14px;color:var(--muted);margin-bottom:.7rem;}
.guide-meta{font-size:11.5px;color:var(--muted);}

.feed-footer{text-align:center;margin-top:2.6rem;}
.feed-footer a{
  display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 2rem;border-radius:var(--radius-md);
  font-weight:500;font-size:14.5px;background:var(--indigo);color:var(--white);box-shadow:var(--e1);
  transition:background .2s ease, box-shadow .2s ease;
}
.feed-footer a:hover{background:var(--indigo-dark);box-shadow:var(--e2);}

/* =========== RELATED POSTS =========== */
.related-posts{padding:clamp(48px,7vw,80px) var(--pad);background:var(--white);}
.related-posts .section-head{margin-bottom:2.2rem;}
.related-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
.related-card{background:var(--surface);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--e1);}
.related-card .thumb{aspect-ratio:16/10;overflow:hidden;}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.related-card .body{padding:1.2rem 1.3rem 1.4rem;}
.related-card h4{font-size:1.02rem;margin-bottom:.4rem;font-weight:500;}
.related-card p{font-size:13.5px;color:var(--muted);margin-bottom:.6rem;}

/* =========== ARCHIVE / SEARCH =========== */
.archive-header{max-width:var(--maxw);margin:0 auto;padding:clamp(48px,7vw,72px) var(--pad) 1.4rem;text-align:center;}
.archive-header h1{font-size:clamp(1.8rem,4vw,2.4rem);}

/* =========== SINGLE POST =========== */
.single-wrap{padding:clamp(48px,7vw,80px) var(--pad) 0;}
.single-header{max-width:760px;margin:0 auto 2rem;text-align:center;}
.single-header h1{font-size:clamp(1.9rem,4vw,2.6rem);font-weight:500;}
.single-cover{max-width:960px;margin:0 auto 2.4rem;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--e2);}
.single-content{max-width:720px;margin:0 auto;background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--e1);padding:clamp(1.6rem,4vw,3rem);font-size:1.05rem;color:#2E2E2E;}
.single-content h2{font-size:1.5rem;margin-top:2.1em;font-weight:500;}
.single-content h3{font-size:1.2rem;margin-top:1.7em;font-weight:500;}
.single-content p{margin-bottom:1.4em;}
.single-content a{color:var(--indigo);text-decoration:underline;text-decoration-color:var(--indigo-light);text-underline-offset:3px;}
.single-content a:hover{text-decoration-color:var(--indigo);}
.single-content img{border-radius:var(--radius-md);margin:1.6rem 0;}
.single-content ul,.single-content ol{margin:0 0 1.4em 1.3em;}
.single-content blockquote{border-left:3px solid var(--amber);margin:1.8rem 0;padding:.4rem 0 .4rem 1.4rem;color:var(--muted);font-style:italic;}
.single-footer{max-width:720px;margin:2rem auto 0;}
.hn-internal-link{font-weight:600;}

/* =========== PAGE (privacy/terms) =========== */
.page-wrap{padding:clamp(56px,8vw,90px) var(--pad);}
.page-content{max-width:760px;margin:0 auto;background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--e1);padding:clamp(1.8rem,4vw,3rem);}
.page-content h1{margin-bottom:1.4rem;font-size:clamp(1.9rem,4vw,2.4rem);font-weight:500;}

/* =========== FOOTER =========== */
.site-footer{background:var(--indigo-dark);color:#E8EAF6;padding:3.6rem var(--pad) 1.8rem;margin-top:3rem;}
.footer-top{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:2.4rem;padding-bottom:2.4rem;border-bottom:1px solid rgba(255,255,255,.14);}
.footer-brand img{height:30px;margin-bottom:1rem;}
.footer-brand p{color:#C5CAE9;font-size:13.5px;max-width:280px;}
.footer-col h4{font-size:12.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--amber);margin-bottom:1rem;font-weight:700;}
.footer-col ul li{margin-bottom:.65rem;}
.footer-col a{color:#E8EAF6;font-size:13.5px;}
.footer-col a:hover{color:var(--amber);}
.footer-bottom{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding-top:1.4rem;font-size:12.5px;color:#C5CAE9;flex-wrap:wrap;gap:1rem;}

/* =========== RESPONSIVE =========== */
@media (max-width:960px){
  .hero{grid-template-columns:1fr;}
  .hero-media{min-height:220px;order:-1;}
  .pillar-grid{grid-template-columns:repeat(2,1fr);}
  .card-grid, .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1fr 1fr;}
}
@media (max-width:780px){
  .primary-nav, .header-search{display:none;}
  .menu-toggle{display:block;}
  .card-grid, .related-grid{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .pillar-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;}
  body{font-size:15.5px;}
  .fab-panel{width:calc(100vw - 48px);}
}

/* Mobile nav drawer */
.mobile-nav{position:fixed;inset:0;background:var(--white);z-index:200;padding:2rem var(--pad);transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;}
.mobile-nav.is-open{transform:translateX(0);}
.mobile-nav-close{background:none;border:0;float:right;font-size:1.6rem;}
.mobile-nav ul{margin-top:3rem;}
.mobile-nav li{border-bottom:1px solid var(--line);}
.mobile-nav a{display:block;padding:1rem 0;font-size:1.05rem;font-weight:500;}
.mobile-nav form{margin-top:2rem;}
.mobile-nav input[type="search"]{width:100%;padding:.8rem 1rem;border-radius:999px;border:1px solid var(--line);background:var(--surface);}