/* === trizpro.app — styles.css (light theme, mobile-first) === */
:root{
  --bg:#ffffff;
  --text:#111225;
  --muted:#6b7280;
  --border:#e5e7eb;
  --card:#ffffff;
  --shadow:0 6px 24px rgba(0,0,0,.08);
  --accent:#6C5CE7;
}

/* Resets / base */
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.55 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.visually-hidden{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* Layout helpers */
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section.alt{background:#fafafa}
.section-head{display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;margin-bottom:16px}
.section-sub{color:var(--muted);margin-top:-8px}
.muted{color:var(--muted)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:saturate(1.6) blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:16px;padding:12px 0;justify-content:space-between;position:relative} /* position for absolute dropdown */
.brand a{font-weight:800;font-size:20px;color:var(--text)}
.brand .accent{color:var(--accent)}

/* Nav (mobile-first: hidden behind toggle) */
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border:1px solid var(--border);border-radius:10px;
  background:#fff;box-shadow:var(--shadow);font-size:22px;margin-left:auto;cursor:pointer;
}
.nav{
  position:absolute;top:56px;right:16px;left:16px;z-index:1000;
  display:none;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px;box-shadow:var(--shadow);
}
.nav a{color:var(--text);padding:6px 8px;border-radius:8px}
.nav a:hover{background:#f7f7fb}
.nav.open{display:flex}

/* Desktop nav */
@media (min-width: 769px){
  .nav-toggle{display:none}
  .nav{
    position:static;display:flex;flex-direction:row;gap:0;border:0;padding:0;box-shadow:none
  }
  .nav a{margin:0 10px}
}

/* Hero */
.hero{padding:56px 0;border-bottom:1px solid var(--border)}
.hero-inner{display:grid;grid-template-columns:1fr;gap:20px;align-items:center}
.hero-copy h1{font-size:32px;line-height:1.2;margin:0 0 12px}
.hero-copy p{color:var(--muted);margin:0 0 20px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-art img{width:100%;height:auto}

/* Wider hero on large screens */
@media (min-width: 960px){
  .hero-inner{grid-template-columns:1.2fr 1fr;gap:28px}
  .hero-copy h1{font-size:40px;line-height:1.15}
}

/* Buttons */
.btn{display:inline-block;border:1px solid var(--border);background:#fff;padding:10px 16px;border-radius:12px;box-shadow:var(--shadow);cursor:pointer}
.btn.primary{background:var(--accent);color:#fff;border-color:transparent}
.btn.ghost{background:#fff;color:var(--accent);border-color:var(--accent)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Filters */
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.filters select,.filters input{
  padding:10px 12px;border:1px solid var(--border);border-radius:10px;min-width:200px
}
.tag-chips{display:flex;gap:8px;flex-wrap:wrap}
.tag{
  border:1px solid var(--border);padding:6px 10px;border-radius:999px;cursor:pointer;background:#fff
}
.tag.active{background:var(--accent);border-color:var(--accent);color:#fff}

/* Mobile filter comfort */
@media (max-width: 768px){
  .filters{flex-direction:column;align-items:stretch;gap:12px}
  .filters select,.filters input{min-width:0;width:100%}
}

/* Cards grid */
.card-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.card{
  grid-column:span 12;background:var(--card);border:1px solid var(--border);
  border-radius:16px;box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column
}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#f2f2f6}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-body{padding:14px 14px 16px}
.card-title{font-weight:700;margin:2px 0}
.card-copy{color:var(--muted);margin:6px 0 12px}
.card-creator{display:flex;align-items:center;gap:10px;margin-top:auto}
.avatar{width:32px;height:32px;border-radius:50%;border:1px solid var(--border);object-fit:cover}
.card-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}

/* Responsive columns */
@media (min-width:640px){ .card{grid-column:span 6} }
@media (min-width:960px){ .card{grid-column:span 4} }

/* Creators */
.creator-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.creator-card{
  grid-column:span 12;display:flex;align-items:center;gap:12px;
  border:1px solid var(--border);border-radius:14px;padding:12px;background:#fff;box-shadow:var(--shadow)
}
@media (min-width:640px){ .creator-card{grid-column:span 6} }
@media (min-width:960px){ .creator-card{grid-column:span 4} }

/* Testimonials */
.testimonials{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.testi{
  grid-column:span 12;border:1px solid var(--border);border-radius:14px;padding:16px;background:#fff;box-shadow:var(--shadow)
}
.testi .quote{font-size:18px}
.testi .by{display:flex;align-items:center;gap:10px;margin-top:12px;color:var(--muted)}
@media (min-width:640px){ .testi{grid-column:span 6} }
@media (min-width:960px){ .testi{grid-column:span 4} }

/* Empty state */
.empty{text-align:center;padding:24px;color:var(--muted)}

/* Footer */
.site-footer{border-top:1px solid var(--border);padding:24px 0;margin-top:32px}
.footer-inner{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.footer-inner nav a{margin:0 8px;color:var(--muted)}

/* Modal */
.modal{position:fixed;inset:0;display:block}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.25)}
.modal-card{
  position:relative;margin:4vh auto;max-width:820px;background:#fff;border-radius:16px;
  box-shadow:var(--shadow);padding:16px
}
.modal-close{position:absolute;top:8px;right:8px;border:none;background:transparent;font-size:28px;cursor:pointer}

/* Skip link */
.skip-link{
  position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden
}
.skip-link:focus{
  left:8px;top:8px;width:auto;height:auto;background:#000;color:#fff;padding:8px 10px;border-radius:8px;z-index:1000
}

/* Mobile niceties */
@media (max-width:768px){
  .container{padding:0 16px}
  .card-body{padding:12px}
  .card-title{font-size:18px}
  .testi{padding:14px}
}

/* Images safety */
.hero-art img,.card-media img{width:100%;height:auto}