/* Shared styles for ia-propulsa article / SEO landing pages */
:root {
  --bg: #000; --fg: #fff;
  --border: rgba(255,255,255,0.08);
  --yellow: #C2C8D2;
  --gold-grad: linear-gradient(180deg, #FBEFC3 0%, #F4DE96 46%, #E6C873 100%);
  --gold-grad-hover: linear-gradient(180deg, #FFF7D6 0%, #F8E6A6 46%, #ECD085 100%);
  --gold-text: #3d2f06;
  --gold-glow: rgba(244, 222, 150, 0.42);
  --gold-fade: linear-gradient(92deg, #E6C873 0%, #F4DE96 25%, #FBEFC3 50%, #F4DE96 75%, #E6C873 100%);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: 'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg); color: var(--fg);
  line-height: 1.65; letter-spacing: -0.01em; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

/* ===== Background (same as the main site) ===== */
.atmosphere {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
  background: linear-gradient(135deg,
    rgba(200,206,216,0.09) 0%, rgba(200,206,216,0.06) 18%, rgba(200,206,216,0.045) 35%,
    rgba(200,206,216,0.04) 55%, rgba(200,206,216,0.03) 72%, rgba(200,206,216,0.02) 88%, transparent 100%);
}
.atmosphere::before {
  content: ""; position: absolute; top: -15%; left: -10%; width: 75vw; height: 75vh;
  background: radial-gradient(circle at 30% 30%, rgba(200,206,216,0.14) 0%, rgba(200,206,216,0.06) 18%, rgba(200,206,216,0.02) 38%, transparent 60%);
  filter: blur(45px);
}
.noise {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
.reflections {
  position: fixed; inset: -25%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(closest-side, rgba(228,233,242,0.16), transparent 72%) 14% 18% / 40vw 40vw no-repeat,
    radial-gradient(closest-side, rgba(236,240,248,0.11), transparent 72%) 82% 28% / 34vw 34vw no-repeat,
    radial-gradient(closest-side, rgba(214,221,234,0.08), transparent 72%) 60% 80% / 42vw 42vw no-repeat;
  filter: blur(34px);
  animation: reflectDrift 20s ease-in-out infinite alternate;
}
@keyframes reflectDrift {
  0% { transform: translate3d(0,0,0) scale(1); opacity: 0.7; }
  100% { transform: translate3d(-1.2%,1.6%,0) scale(1.04); opacity: 0.85; }
}
@media (prefers-reduced-motion: reduce) { .reflections { animation: none !important; } }

/* ===== Topbar (same as the main site) ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px 40px;
}
.brand { display: inline-flex; align-items: center; transition: opacity 0.25s ease; }
.brand:hover { opacity: 0.7; }
.brand-logo { height: 28px; width: auto; filter: brightness(0) invert(1); opacity: 0.95; display: block; }
.pill-nav {
  display: flex; align-items: center; gap: 8px; padding: 8px 12px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: 999px;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}
.pill-nav a { padding: 8px 18px; font-size: 14px; color: rgba(255,255,255,0.85); border-radius: 999px; transition: background 0.2s, color 0.2s; white-space: nowrap; }
.pill-nav a:hover, .pill-nav a.active { color: var(--yellow); background: rgba(200,206,216,0.06); }
.cta-pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px;
  background: var(--gold-grad); color: var(--gold-text); font-size: 15px; font-weight: 500;
  border-radius: 999px; border: 1px solid rgba(255,246,214,0.6);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.5), 0 6px 18px -6px var(--gold-glow);
  transition: transform 0.25s, background 0.3s;
}
.cta-pill:hover { background: var(--gold-grad-hover); transform: translateY(-1px); }
.cta-pill svg { width: 14px; height: 14px; }

/* ===== Article ===== */
.article { position: relative; z-index: 2; max-width: 760px; margin: 0 auto; padding: 140px 24px 40px; }
.back { display: inline-block; font-size: 13.5px; color: rgba(255,255,255,0.55); margin-bottom: 26px; transition: color 0.2s; }
.back:hover { color: #F4DE96; }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 0.26em; text-transform: uppercase;
  background: var(--gold-fade); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}
.article h1 { font-size: clamp(32px, 5vw, 52px); font-weight: 600; letter-spacing: -0.035em; line-height: 1.06; margin-bottom: 18px; }
.gold { background: var(--gold-fade); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.article-lead { font-size: clamp(17px, 1.4vw, 20px); color: rgba(255,255,255,0.72); margin-bottom: 18px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; font-size: 12.5px; letter-spacing: 0.04em; text-transform: uppercase; color: rgba(255,255,255,0.4); padding-bottom: 30px; border-bottom: 1px solid rgba(255,255,255,0.08); margin-bottom: 38px; }
.article-meta .cat { color: #EAD085; font-weight: 600; }

.article-body h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 600; letter-spacing: -0.03em; line-height: 1.15; margin: 38px 0 14px; }
.article-body h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.02em; margin: 28px 0 10px; }
.article-body p { font-size: 16.5px; color: rgba(255,255,255,0.78); margin-bottom: 18px; }
.article-body strong { color: #fff; font-weight: 600; }
.article-body ul, .article-body ol { margin: 0 0 18px 22px; color: rgba(255,255,255,0.78); }
.article-body li { margin-bottom: 9px; font-size: 16.5px; }
.article-body a:not(.cta-pill) { color: #EAD085; text-decoration: underline; text-underline-offset: 3px; }

.article-cta {
  margin: 44px 0 10px; padding: 34px 28px; text-align: center;
  background: rgba(255,255,255,0.025); border: 1px solid rgba(244,222,150,0.22); border-radius: 20px;
}
.article-cta h3 { font-size: clamp(20px, 2.4vw, 26px); font-weight: 600; letter-spacing: -0.02em; margin-bottom: 18px; }

.article-related { position: relative; z-index: 2; max-width: 760px; margin: 40px auto 0; padding: 36px 24px 0; border-top: 1px solid rgba(200,206,216,0.14); }
.article-related h4 { font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; color: rgba(255,255,255,0.4); margin-bottom: 16px; }
.related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.related-grid a {
  display: block; padding: 18px 20px; border-radius: 14px;
  background: rgba(255,255,255,0.025); border: 1px solid rgba(255,255,255,0.08);
  font-size: 15px; font-weight: 500; color: rgba(255,255,255,0.85); transition: transform 0.25s, border-color 0.25s, background 0.25s;
}
.related-grid a:hover { transform: translateY(-3px); border-color: rgba(244,222,150,0.4); background: rgba(255,255,255,0.04); }

.site-foot { position: relative; z-index: 2; text-align: center; padding: 70px 24px 90px; margin-top: 60px; border-top: 1px solid rgba(200,206,216,0.12); }
.site-foot h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 600; letter-spacing: -0.03em; margin-bottom: 22px; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 26px; margin-top: 30px; }
.footer-nav a { font-size: 13.5px; color: rgba(255,255,255,0.6); transition: color 0.2s; }
.footer-nav a:hover { color: #F4DE96; }
.footer-mark { text-align: center; padding: 26px; font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: rgba(255,255,255,0.3); }

@media (max-width: 900px) { .pill-nav { display: none; } .nav { padding: 20px; } .article { padding-top: 104px; } }
@media (max-width: 560px) { .related-grid { grid-template-columns: 1fr; } }