/* nibFIT — Theme 2 (On Running-inspired, Dark/Light) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root[data-theme="dark"] {
  --bg: #0F0F0F;
  --card: #1A1A1A;
  --card-alt: #222222;
  --accent: #00D4AA;
  --energy: #FF5C3A;
  --warn: #FFB444;
  --text: #F2F0EB;
  --text-soft: #F2F0EB;
  --muted: #7A7A78;
  --border: #2A2A2A;
  --ring-track: #333333;
  --nav-bg: rgba(15,15,15,0.72);
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-md: 0 8px 48px rgba(0,0,0,0.5);
}

:root[data-theme="light"] {
  --bg: #FFFFFF;
  --card: #F6F6F4;
  --card-alt: #EEEEEB;
  --accent: #00B898;
  --energy: #FF5136;
  --warn: #F5A623;
  --text: #111111;
  --text-soft: #3A3A38;
  --muted: #999994;
  --border: #E4E4E0;
  --ring-track: #E8E8E4;
  --nav-bg: rgba(255,255,255,0.72);
  --shadow: 0 4px 24px rgba(17,17,17,0.06);
  --shadow-md: 0 8px 48px rgba(17,17,17,0.1);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-top: 72px;
  transition: background 0.25s ease, color 0.25s ease;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.nav-logo-text { font-size: 19px; font-weight: 800; letter-spacing: -0.03em; }
.nav-logo-text span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 14px;
  border-radius: 10px;
  transition: all 0.15s;
}
.nav-links a:hover { background: var(--card); color: var(--text); }
.nav-cta { background: var(--text) !important; color: var(--bg) !important; border-radius: 100px !important; padding: 10px 18px !important; }
.nav-cta:hover { opacity: 0.85; }
.theme-toggle {
  width: 40px; height: 40px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  margin-left: 6px;
  flex-shrink: 0;
}
.theme-toggle svg { width: 17px; height: 17px; }
.nav-mobile-toggle {
  display: none; cursor: pointer; background: none; border: none;
  color: var(--text); font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
}

/* ── MAIN ── */
main { min-height: 80vh; }
.section { padding: 120px 24px; }
.section-sm { padding: 72px 24px; }
.container { max-width: 1120px; margin: 0 auto; }
.container-sm { max-width: 760px; margin: 0 auto; }
.text-center { text-align: center; }

/* ── TYPOGRAPHY ── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}
.eyebrow::before { content: ''; width: 16px; height: 1px; background: var(--accent); display: inline-block; }
h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 800;
  line-height: 1.03;
  letter-spacing: -0.03em;
  color: var(--text);
}
h1 em, .stat-number em { color: var(--accent); font-style: normal; }
h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; color: var(--text); }
h3 { font-size: 1.2rem; font-weight: 700; line-height: 1.3; color: var(--text); }
h4 { font-size: 1rem; font-weight: 700; color: var(--text); }
p { color: var(--text-soft); line-height: 1.75; }
.lead { font-size: 1.15rem; color: var(--text-soft); max-width: 520px; }

/* gradient accent used across UI */
.grad-text {
  background: linear-gradient(90deg, var(--accent), var(--energy));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 28px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.18s;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(90deg, var(--accent), var(--energy));
  color: #0F0F0F;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); filter: brightness(1.05); }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--text); }
.btn-lg { padding: 18px 34px; font-size: 14px; }
.btn-sm { padding: 10px 18px; font-size: 12px; }

/* ── CARDS ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: var(--shadow);
}
.card-sm { padding: 20px; }
.card-grid { display: grid; gap: 20px; }
.card-grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card-grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* ── PAGE HERO ── */
.page-hero {
  background: var(--card);
  padding: 100px 24px 64px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.page-hero .eyebrow { justify-content: center; }
.page-hero h1 { font-size: clamp(1.9rem, 4.4vw, 3rem); margin-bottom: 18px; }
.page-hero p { max-width: 580px; margin: 0 auto; font-size: 1.05rem; }

/* ── BADGE ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.badge-green { background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); }
.badge-dark { background: var(--text); color: var(--bg); }
.btn-green {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 28px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.18s;
  background: var(--accent);
  color: #06110D;
}
.btn-green:hover { transform: translateY(-1px); filter: brightness(1.05); box-shadow: var(--shadow-md); }

/* ── COMPARISON TABLE ── */
.compare-table { width: 100%; border-collapse: collapse; margin-top: 40px; font-size: 15px; }
.compare-table th {
  padding: 14px 20px;
  font-size: 12px;
  font-weight: 700;
  text-align: left;
  border-bottom: 2px solid var(--border);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.compare-table th.col-nibfit {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border-radius: 12px 12px 0 0;
}
.compare-table td { padding: 16px 20px; border-bottom: 1px solid var(--border); color: var(--text-soft); vertical-align: top; }
.compare-table td.col-nibfit { background: color-mix(in srgb, var(--accent) 5%, transparent); font-weight: 600; color: var(--accent); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:hover td { background: var(--card); }
.compare-table tr:hover td.col-nibfit { background: color-mix(in srgb, var(--accent) 9%, transparent); }
.check { color: var(--accent); font-size: 18px; }
.cross { color: var(--energy); font-size: 18px; }
.partial { color: var(--warn); font-size: 18px; }

/* ── FAQ ── */
.faq-item { border-bottom: 1px solid var(--border); padding: 24px 0; }
.faq-item:last-child { border-bottom: none; }
.faq-q { font-size: 17px; font-weight: 700; margin-bottom: 10px; display: flex; align-items: flex-start; gap: 12px; color: var(--text); }
.faq-q .q-mark {
  flex-shrink: 0; width: 26px; height: 26px;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: var(--accent);
}
.faq-a { color: var(--text-soft); padding-left: 38px; line-height: 1.7; }

/* ── LEGAL ── */
.legal-content h2 { font-size: 1.4rem; margin: 36px 0 12px; }
.legal-content h3 { font-size: 1.1rem; margin: 24px 0 8px; }
.legal-content p { margin-bottom: 14px; }
.legal-content ul { padding-left: 24px; margin-bottom: 14px; color: var(--text-soft); }
.legal-content ul li { margin-bottom: 6px; line-height: 1.7; }
.legal-content a { color: var(--accent); }

/* ── FOOTER ── */
footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  color: var(--muted);
  padding: 72px 24px 40px;
}
.footer-inner { max-width: 1120px; margin: 0 auto; }
.footer-top { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 56px; }
.footer-brand { grid-column: span 1; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo-icon { width: 34px; height: 34px; background-image: url('nibfit_bite.png'); background-size: cover; background-position: center; border-radius: 9px; flex-shrink: 0; display: block; }
.footer-logo-text { font-size: 19px; font-weight: 800; color: var(--text); letter-spacing: -0.03em; }
.footer-logo-text span { color: var(--accent); }
.footer-tagline { font-size: 13px; line-height: 1.6; max-width: 220px; }
.footer-col h5 { font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { color: var(--text-soft); text-decoration: none; font-size: 14px; font-weight: 500; transition: color 0.15s; }
.footer-col ul a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 28px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-bottom p { font-size: 13px; }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: var(--muted); text-decoration: none; font-size: 13px; transition: color 0.15s; }
.footer-bottom-links a:hover { color: var(--text); }

/* ── DIVIDER ── */
.divider { border: none; border-top: 1px solid var(--border); margin: 0; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .section { padding: 72px 20px; }
  .section-sm { padding: 56px 20px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
  nav .nav-links { display: none; }
  .nav-mobile-toggle { display: flex; align-items: center; gap: 6px; }
}
@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}