/* =============================================
   Hyppo-XD  — Custom Modern Styles
   ============================================= */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;700&display=swap');

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green-dark:  #0b5e09;
  --green-mid:   #1a8a17;
  --green-light: #4caf50;
  --green-pale:  #e8f5e9;
  --gray-900:    #1a1a2e;
  --gray-700:    #374151;
  --gray-500:    #6b7280;
  --gray-200:    #e5e7eb;
  --gray-100:    #f9fafb;
  --white:       #ffffff;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:   0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:   0 10px 40px rgba(0,0,0,.14);
  --radius:      12px;
  --transition:  .25s ease;
}

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

body {
  font-family: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--gray-700);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

/* ---------- Nav Bar ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 5%;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--green-dark);
  text-decoration: none;
  letter-spacing: -.5px;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--gray-700);
  text-decoration: none;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--green-dark); }

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .45rem 1.1rem;
  background: var(--green-dark);
  color: var(--white) !important;
  border-radius: 6px;
  font-size: .85rem;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}
.nav-btn:hover { background: var(--green-mid) !important; color: var(--white) !important; transform: translateY(-1px); }

/* ---------- Hero / Banner ---------- */
.hero {
  width: 100%;
  position: relative;
  overflow: hidden;
  background: var(--gray-900);
}

.hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  object-position: center top;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(11,94,9,.15) 0%,
    rgba(26,26,46,.55) 100%
  );
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: center;
  padding: 2rem;
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -1px;
  text-shadow: 0 2px 12px rgba(0,0,0,.4);
}

.hero-subtitle {
  font-size: clamp(.9rem, 2vw, 1.15rem);
  color: rgba(255,255,255,.85);
  max-width: 560px;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: .5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .7rem 1.6rem;
  background: var(--green-light);
  color: var(--white);
  font-weight: 600;
  font-size: .95rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover { background: var(--green-mid); color: var(--white); transform: translateY(-2px); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .7rem 1.6rem;
  background: transparent;
  color: var(--white);
  font-weight: 600;
  font-size: .95rem;
  border: 2px solid rgba(255,255,255,.65);
  border-radius: 8px;
  text-decoration: none;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.12); color: var(--white); transform: translateY(-2px); }

/* ---------- TOC Strip ---------- */
.toc-strip {
  background: var(--green-pale);
  border-bottom: 1px solid #c8e6c9;
  padding: 1rem 5%;
  display: flex;
  align-items: center;
  gap: .5rem 1.5rem;
  flex-wrap: wrap;
}

.toc-label {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--green-dark);
}

.toc-strip a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--green-dark);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  transition: color var(--transition);
}
.toc-strip a:hover { color: var(--green-mid); text-decoration: underline; }

/* ---------- Main Content ---------- */
.page-content {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 0 5rem;
}

/* ---------- Section Cards ---------- */
.section-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 2rem 2.25rem;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}
.section-card:hover { box-shadow: var(--shadow-md); }

.section-card h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .6rem;
}

.section-card h2 .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--green-pale);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.section-card p {
  margin-bottom: 1rem;
  color: var(--gray-700);
  line-height: 1.75;
}

.section-card ol,
.section-card ul {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
}

.section-card li {
  margin-bottom: .6rem;
  line-height: 1.7;
  color: var(--gray-700);
}

.section-card strong { color: var(--gray-900); }

.section-card em { color: var(--gray-500); }

/* ---------- Numbered Steps ---------- */
.steps { list-style: none; padding: 0; counter-reset: step; }
.steps li {
  counter-increment: step;
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
  align-items: flex-start;
}
.steps li::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--green-dark);
  color: var(--white);
  font-size: .8rem;
  font-weight: 700;
  margin-top: .18rem;
}

/* ---------- Inline code / pre ---------- */
code {
  font-family: 'Fira Code', 'Courier New', monospace;
  font-size: .875em;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: 4px;
  padding: .15em .4em;
  color: var(--green-dark);
}

/* ---------- Images ---------- */
.content-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  margin: 1.25rem 0;
}

/* ---------- Download/Callout Banner ---------- */
.callout {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green-mid) 100%);
  color: var(--white);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  margin: 2.5rem 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.callout-text strong { display: block; font-size: 1.15rem; font-weight: 700; margin-bottom: .25rem; }
.callout-text span  { font-size: .9rem; opacity: .88; }

.callout .btn-white {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .65rem 1.5rem;
  background: var(--white);
  color: var(--green-dark);
  font-weight: 700;
  font-size: .9rem;
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
  transition: opacity var(--transition), transform var(--transition);
}
.callout .btn-white:hover { opacity: .92; transform: translateY(-1px); color: var(--green-dark); }

/* ---------- Footer ---------- */
.site-footer {
  text-align: center;
  padding: 2rem 5%;
  border-top: 1px solid var(--gray-200);
  font-size: .85rem;
  color: var(--gray-500);
}

.site-footer a { color: var(--green-dark); font-weight: 500; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .site-nav { padding: .65rem 4%; }
  .nav-links { gap: .75rem; }
  .hero-img { max-height: 220px; }
  .section-card { padding: 1.5rem 1.25rem; }
  .callout { flex-direction: column; text-align: center; }
}