<section class="ba-hro" aria-label="Responsive full-width hero banner demo">
  <div class="hero hero--dark">
    <div class="hero-bg" aria-hidden="true"></div>
    <div class="hero-content">
      <div class="hero-eyebrow"><span class="hero-eyebrow-dot" aria-hidden="true"></span>New — Launching today</div>
      <h1 class="hero-title">Build<br><span class="thin">faster.</span><br>Ship <span class="accent">bold.</span></h1>
      <p class="hero-desc">The platform that scales from prototype to production without the complexity. One workflow, infinite possibilities.</p>
      <div class="hero-actions">
        <a href="#" class="btn-hero-primary">Get started free</a>
        <a href="#" class="btn-hero-ghost"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><polygon points="5 3 19 12 5 21 5 3"/></svg> Watch demo</a>
      </div>
    </div>
  </div>

  <div class="hero hero--warm">
    <div class="hero-bg" aria-hidden="true"></div>
    <div class="hero-content">
      <div class="hero-eyebrow"><span class="hero-eyebrow-dot" aria-hidden="true"></span>Summer collection</div>
      <h1 class="hero-title">Made<br>for the<br><span class="accent">season.</span></h1>
      <p class="hero-desc">Thoughtfully designed pieces crafted from sustainable materials. Limited run — once they're gone, they're gone.</p>
      <div class="hero-actions">
        <a href="#" class="btn-hero-primary">Shop collection</a>
        <a href="#" class="btn-hero-ghost">Explore lookbook <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><line x1="5" y1="12" x2="19" y2="12"/><polyline points="12 5 19 12 12 19"/></svg></a>
      </div>
    </div>
  </div>

  <div class="hero hero--mono">
    <div class="hero-bg" aria-hidden="true"></div>
    <div class="hero-content">
      <div class="hero-eyebrow"><span class="hero-eyebrow-dot" aria-hidden="true"></span>Open source</div>
      <h1 class="hero-title">Simple.<br><span class="accent">Precise.</span><br>Fast.</h1>
      <p class="hero-desc">A zero-dependency CSS utility library with a 4 KB footprint. No build step. No configuration. Just drop it in and go.</p>
      <div class="hero-actions">
        <a href="#" class="btn-hero-primary">View on GitHub</a>
        <a href="#" class="btn-hero-ghost">Read the docs →</a>
      </div>
    </div>
  </div>
</section>

/* ─── 11 Responsive Full Width Hero Banner — cinematic ────────── */
@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@300;400;700;900&family=Outfit:wght@300;400;500&display=swap');

.ba-hro {
  position: relative;
  width: 100%;
  min-height: 1200px;
  font-family: 'Outfit', sans-serif;
  background: #050505;
  color: #fff;
  display: flex; flex-direction: column;
  overflow: hidden;
  box-sizing: border-box;
}
.ba-hro *, .ba-hro *::before, .ba-hro *::after { box-sizing: border-box; margin: 0; padding: 0; }

.ba-hro .hero { position: relative; width: 100%; min-height: 540px; display: flex; align-items: center; overflow: hidden; animation: ba-hro-fade 0.8s ease both; }
.ba-hro .hero--warm { animation-delay: 0.15s; } .ba-hro .hero--mono { animation-delay: 0.3s; }
@keyframes ba-hro-fade { from { opacity: 0; } to { opacity: 1; } }

.ba-hro .hero-bg { position: absolute; inset: 0; z-index: 0; }
.ba-hro .hero--dark .hero-bg { background: radial-gradient(ellipse 80% 60% at 70% 40%, rgba(99,102,241,0.35) 0%, transparent 60%), radial-gradient(ellipse 50% 50% at 20% 70%, rgba(236,72,153,0.2) 0%, transparent 55%), radial-gradient(ellipse 60% 40% at 80% 80%, rgba(6,182,212,0.15) 0%, transparent 50%), linear-gradient(160deg, #050510 0%, #0a0a1a 50%, #050505 100%); }
.ba-hro .hero--dark .hero-bg::after { content: ''; position: absolute; inset: 0; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E"); pointer-events: none; mix-blend-mode: screen; }
.ba-hro .hero--dark .hero-bg::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 80px 80px; mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black, transparent); }

.ba-hro .hero-content { position: relative; z-index: 1; width: 100%; max-width: 1200px; margin: 0 auto; padding: clamp(60px, 10vw, 120px) clamp(24px, 6vw, 80px); }
.ba-hro .hero-eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: clamp(10px, 1.2vw, 12px); font-weight: 500; letter-spacing: 0.3em; text-transform: uppercase; color: rgba(255,255,255,0.5); margin-bottom: clamp(20px, 3vw, 32px); }
.ba-hro .hero-eyebrow-dot { width: 6px; height: 6px; border-radius: 50%; background: #6366f1; animation: ba-hro-glow 2s ease-in-out infinite; }
@keyframes ba-hro-glow { 0%,100% { box-shadow: 0 0 0 0 rgba(99,102,241,0.5); } 50% { box-shadow: 0 0 0 6px rgba(99,102,241,0); } }
.ba-hro .hero-title { font-family: 'Unbounded', sans-serif; font-size: clamp(36px, 7vw, 96px); font-weight: 900; line-height: 1.0; letter-spacing: -0.02em; margin-bottom: clamp(20px, 3vw, 28px); max-width: 11ch; }
.ba-hro .hero-title .accent { color: #6366f1; }
.ba-hro .hero-title .thin { font-weight: 300; }
.ba-hro .hero-desc { font-size: clamp(14px, 1.8vw, 18px); font-weight: 300; color: rgba(255,255,255,0.55); line-height: 1.75; max-width: 480px; margin-bottom: clamp(32px, 5vw, 48px); }
.ba-hro .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.ba-hro .btn-hero-primary { font-size: clamp(12px, 1.3vw, 14px); font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; padding: clamp(12px, 1.8vw, 16px) clamp(24px, 3.5vw, 36px); background: white; color: #050510; border: none; border-radius: 4px; cursor: pointer; transition: all 0.22s ease; text-decoration: none; display: inline-block; }
.ba-hro .btn-hero-primary:hover { background: #6366f1; color: white; transform: translateY(-2px); box-shadow: 0 8px 32px rgba(99,102,241,0.4); }
.ba-hro .btn-hero-ghost { font-size: clamp(12px, 1.3vw, 14px); font-weight: 400; letter-spacing: 0.06em; color: rgba(255,255,255,0.6); background: transparent; text-decoration: none; transition: color 0.2s; display: flex; align-items: center; gap: 6px; }
.ba-hro .btn-hero-ghost svg { width: 16px; height: 16px; }
.ba-hro .btn-hero-ghost:hover { color: white; }

.ba-hro .hero--warm { color: #111; }
.ba-hro .hero--warm .hero-bg { background: radial-gradient(ellipse 60% 50% at 90% 20%, rgba(251,191,36,0.4) 0%, transparent 55%), radial-gradient(ellipse 50% 60% at 10% 90%, rgba(249,115,22,0.25) 0%, transparent 50%), linear-gradient(160deg, #fffbf0 0%, #fef3c7 50%, #fff8ed 100%); }
.ba-hro .hero--warm .hero-eyebrow { color: rgba(17,17,17,0.4); }
.ba-hro .hero--warm .hero-eyebrow-dot { background: #f59e0b; animation: none; box-shadow: none; }
.ba-hro .hero--warm .hero-title { color: #111; }
.ba-hro .hero--warm .hero-title .accent { color: #ea580c; }
.ba-hro .hero--warm .hero-desc { color: rgba(17,17,17,0.5); }
.ba-hro .hero--warm .btn-hero-primary { background: #111; color: white; }
.ba-hro .hero--warm .btn-hero-primary:hover { background: #ea580c; box-shadow: 0 8px 32px rgba(234,88,12,0.3); }
.ba-hro .hero--warm .btn-hero-ghost { color: rgba(17,17,17,0.5); }
.ba-hro .hero--warm .btn-hero-ghost:hover { color: #111; }

.ba-hro .hero--mono { background: #fff; color: #111; }
.ba-hro .hero--mono .hero-bg { background: #fff; background-image: repeating-linear-gradient(0deg, transparent, transparent 47px, rgba(0,0,0,0.04) 47px, rgba(0,0,0,0.04) 48px); }
.ba-hro .hero--mono .hero-eyebrow { color: rgba(17,17,17,0.35); }
.ba-hro .hero--mono .hero-eyebrow-dot { background: #111; animation: none; box-shadow: none; }
.ba-hro .hero--mono .hero-title { color: #111; }
.ba-hro .hero--mono .hero-title .accent { -webkit-text-stroke: 1px #111; color: transparent; }
.ba-hro .hero--mono .hero-desc { color: rgba(17,17,17,0.45); }
.ba-hro .hero--mono .btn-hero-primary { background: #111; color: white; border-radius: 2px; }
.ba-hro .hero--mono .btn-hero-primary:hover { background: #333; box-shadow: none; }
.ba-hro .hero--mono .btn-hero-ghost { color: rgba(17,17,17,0.45); }

@media (prefers-reduced-motion: reduce) { .ba-hro .hero, .ba-hro .hero-eyebrow-dot { animation: none !important; } }