/* Just Real Health Facts — landing page styles */

:root {
  --navy: #0D2B4E;
  --navy-2: #1a3f6f;
  --gold: #D4A820;
  --gold-dk: #b8901a;
  --ink: #15243d;
  --muted: #5b6878;
  --line: #e3e7ec;
  --gray: #f4f6f8;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 1.5rem; }

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13, 43, 78, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav .brand { font-weight: 800; color: #fff; text-decoration: none; font-size: 1.05rem; }
.nav .brand span { color: var(--gold); }
.nav ul { display: flex; gap: 1.5rem; list-style: none; }
.nav a.navlink { color: #dce4ee; text-decoration: none; font-size: 0.92rem; font-weight: 600; }
.nav a.navlink:hover { color: var(--gold); }
@media (max-width: 620px) {
  .nav ul { gap: 1rem; }
  .nav a.navlink { font-size: 0.82rem; }
  .nav .brand { font-size: 0.95rem; }
}

/* ---- hero ---- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex; align-items: center;
  background: linear-gradient(150deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff; text-align: center;
  padding: 5rem 0;
}
.hero h1 {
  font-size: clamp(2.4rem, 6.5vw, 4.5rem);
  font-weight: 900; line-height: 1.06; letter-spacing: -0.02em;
  text-shadow: 0 2px 26px rgba(255, 255, 255, 0.30);
}
.hero .sub {
  margin: 1.5rem auto 0; max-width: 620px;
  font-size: clamp(1rem, 2.4vw, 1.25rem); color: #c4d2e4;
}
.hero-cta { margin-top: 2.2rem; display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 0.95rem 1.8rem; border-radius: 9px;
  font-weight: 700; font-size: 1rem; text-decoration: none; cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s, background 0.15s, border-color 0.15s, color 0.15s;
}
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: var(--gold-dk); transform: translateY(-2px); }
.btn-outline { border-color: rgba(255, 255, 255, 0.4); color: #fff; }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.trust-badges { margin-top: 2.5rem; display: flex; gap: 1.4rem; justify-content: center; flex-wrap: wrap; }
.trust-badges span { font-size: 0.85rem; color: #aebfd4; font-weight: 600; }

/* hero load animation */
.hero h1, .gold-rule, .hero .sub, .hero-cta, .trust-badges {
  opacity: 0; animation: fadeUp 0.8s ease forwards;
}
.hero h1 { animation-delay: 0.1s; }
.gold-rule { animation-delay: 0.2s; }
.hero .sub { animation-delay: 0.28s; }
.hero-cta { animation-delay: 0.46s; }
.trust-badges { animation-delay: 0.62s; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- hero rotating background ---- */
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: #0D2B4E; /* fallback if images fail to load */
}
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  will-change: opacity, transform;
  animation: heroFade 30s linear infinite;
}
.hero-slide:nth-child(1) { animation-delay: 0s; }
.hero-slide:nth-child(2) { animation-delay: 6s; }
.hero-slide:nth-child(3) { animation-delay: 12s; }
.hero-slide:nth-child(4) { animation-delay: 18s; }
.hero-slide:nth-child(5) { animation-delay: 24s; }
.hero-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: rgba(13, 43, 78, 0.78);
}
@keyframes heroFade {
  0%   { opacity: 0; transform: scale(1.0); }
  5%   { opacity: 1; }
  20%  { opacity: 1; }
  25%  { opacity: 0; transform: scale(1.05); }
  100% { opacity: 0; transform: scale(1.0); }
}
.hero .wrap { position: relative; z-index: 2; }

/* gold rule between headline and subheadline */
.gold-rule {
  width: 64px; height: 3px;
  background: var(--gold);
  border-radius: 2px;
  margin: 1.4rem auto 0;
}

/* gold pill icon in the first trust badge */
.pill-icon { vertical-align: -2px; margin-right: 4px; }

/* bouncing scroll indicator */
.scroll-cue {
  position: absolute; left: 50%; bottom: 1.6rem; z-index: 2;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  animation: scrollBounce 1.8s ease-in-out infinite;
}
.scroll-cue:hover { color: var(--gold); }
.scroll-cue svg { display: block; }
@keyframes scrollBounce {
  0%, 100% { transform: translate(-50%, 0); }
  50%      { transform: translate(-50%, 9px); }
}

/* ---- stats bar ---- */
.stats { background: var(--navy); color: #fff; padding: 3rem 0; }
.stats .grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: center; }
.stat .num { font-size: clamp(2.2rem, 5vw, 3.2rem); font-weight: 900; color: var(--gold); line-height: 1; }
.stat .label { margin-top: 0.5rem; font-size: 0.9rem; color: #b9c7da; font-weight: 600; }
@media (max-width: 620px) { .stats .grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; } }

/* ---- sections ---- */
.section { padding: 4.5rem 0; }
.section-title {
  font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 900;
  letter-spacing: -0.02em; text-align: center;
}
.section-intro {
  text-align: center; color: var(--muted); margin: 0.6rem auto 0; max-width: 560px;
}

/* ---- featured cards ---- */
.featured-grid {
  margin-top: 2.5rem; display: grid; gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.fcard {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 1.6rem; display: flex; flex-direction: column;
  box-shadow: 0 4px 20px rgba(13, 43, 78, 0.05);
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
  text-decoration: none; color: inherit;
}
.fcard:hover {
  transform: translateY(-4px); border-color: var(--navy);
  box-shadow: 0 12px 32px rgba(13, 43, 78, 0.12);
}
.fcard h3 { font-size: 1.18rem; font-weight: 800; margin: 0.9rem 0 0.5rem; line-height: 1.3; }
.fcard p { color: var(--muted); font-size: 0.95rem; flex: 1; }
.fcard .meta { margin-top: 1rem; display: flex; justify-content: space-between; align-items: center; }
.fcard .rt { font-size: 0.8rem; color: var(--muted); }
.read-link { color: var(--gold-dk); font-weight: 800; font-size: 0.9rem; }

/* category badge */
.cat-badge {
  align-self: flex-start; font-size: 0.7rem; font-weight: 800;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.32rem 0.6rem; border-radius: 5px;
}
.c-metabolic { background: #e3f5ea; color: #1f7d46; }
.c-sleep { background: #ece7f8; color: #5b3da3; }
.c-brain { background: #e4ecfb; color: #2156b3; }
.c-heart { background: #fae6e3; color: #b23226; }
.c-gut { background: #dff3f3; color: #0c7676; }
.c-mens { background: #e6eef7; color: #345f93; }
.c-womens { background: #fae4ef; color: #aa3a72; }

/* ---- all articles + filter tabs ---- */
.tabs { margin: 2.2rem 0 1.8rem; display: flex; gap: 0.6rem; justify-content: center; flex-wrap: wrap; }
.tab {
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  padding: 0.55rem 1rem; border-radius: 999px; font-size: 0.88rem;
  font-weight: 700; cursor: pointer; font-family: inherit;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.tab:hover { border-color: var(--navy); }
.tab.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.article-grid { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.acard {
  border: 1px solid var(--line); border-radius: 12px; padding: 1.3rem;
  background: #fff; display: flex; flex-direction: column;
  text-decoration: none; color: inherit;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  animation: fadeUp 0.4s ease;
}
.acard:hover {
  transform: translateY(-3px); border-color: var(--navy);
  box-shadow: 0 8px 22px rgba(13, 43, 78, 0.09);
}
.acard h3 { font-size: 1.04rem; font-weight: 800; margin: 0.7rem 0 0.4rem; line-height: 1.32; }
.acard p { color: var(--muted); font-size: 0.9rem; flex: 1; }
.acard .read-btn {
  margin-top: 0.9rem; align-self: flex-start; background: var(--navy);
  color: #fff; font-weight: 700; font-size: 0.85rem;
  padding: 0.5rem 1rem; border-radius: 7px;
}
.acard:hover .read-btn { background: var(--navy-2); }
.acard.is-hidden { display: none; }
.empty-cat {
  grid-column: 1 / -1; text-align: center; color: var(--muted);
  padding: 2.5rem 1rem; border: 1px dashed var(--line); border-radius: 12px;
}

/* ---- reveal on scroll ---- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---- trust ---- */
.trust { background: var(--gray); }
.trust-grid {
  margin-top: 2.5rem; display: grid; gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.trust-col { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 1.8rem; }
.trust-col .ico { font-size: 1.8rem; }
.trust-col h3 { font-size: 1.15rem; font-weight: 800; margin: 0.6rem 0 0.4rem; }
.trust-col p { color: var(--muted); font-size: 0.94rem; }

/* ---- newsletter ---- */
.newsletter {
  background: linear-gradient(150deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff; text-align: center;
}
.newsletter h2 { font-size: clamp(1.6rem, 4vw, 2.2rem); font-weight: 900; }
.newsletter p { color: #c4d2e4; margin-top: 0.6rem; }
.newsletter form {
  margin: 1.6rem auto 0;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.newsletter input[type="email"] {
  width: 100%;
  padding: 0.9rem 1.1rem;
  background: #0d2b4e;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 9px;
  font-size: 0.95rem;
  font-family: inherit;
}
.newsletter input[type="email"]::placeholder { color: rgba(255, 255, 255, 0.5); }
.newsletter input[type="email"]:focus { outline: none; border-color: var(--gold); }
.newsletter button {
  width: 100%;
  padding: 0.9rem 1.7rem;
  background: var(--gold); color: var(--navy);
  border: 0; border-radius: 9px; font-weight: 800; font-size: 0.95rem;
  cursor: pointer; font-family: inherit;
}
.newsletter button:hover { background: var(--gold-dk); }
.newsletter .fine { margin-top: 1rem; font-size: 0.78rem; color: #9aabc2; }

/* ---- footer ---- */
.footer { background: var(--navy); color: #b9c7da; padding: 3rem 0; }
.footer .flinks {
  display: flex; gap: 1.4rem; justify-content: center; flex-wrap: wrap;
  list-style: none; margin-bottom: 1.3rem;
}
.footer .flinks a { color: #dce4ee; text-decoration: none; font-weight: 600; font-size: 0.9rem; }
.footer .flinks a:hover { color: var(--gold); }
.footer .fdisc { text-align: center; font-size: 0.82rem; max-width: 640px; margin: 0 auto 0.8rem; }
.footer .fcopy { text-align: center; font-size: 0.8rem; color: #8195af; }
.footer .fcopy a { color: #8195af; }

/* ---- reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .hero h1, .gold-rule, .hero .sub, .hero-cta, .trust-badges, .reveal { opacity: 1 !important; transform: none !important; }
  .hero-slide:first-child { opacity: 1 !important; }
  .scroll-cue { transform: translateX(-50%) !important; }
}