/* ═══════════════════════════════════════════════════════
   DELTA LEARNING INSTITUTE — style.css  v3
   All pages reference this file. Keep in the same folder.
   ─────────────────────────────────────────────────────
   TO RETHEME: edit the :root variables below only.
   Every color on every page flows from these tokens.
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,600;0,700;1,600&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── COLOR TOKENS ── */
:root {
  /* Backgrounds */
  --bg:          #f7faf7;
  --bg2:         #eef5ef;
  --surface:     #ffffff;

  /* Borders */
  --border:      #d4e6d5;
  --border2:     #b8d9ba;

  /* Brand greens */
  --green-dark:  #1a4a2e;
  --green-mid:   #2d7a4f;
  --green:       #3a9e65;

  /* Teal accent */
  --teal:        #1e8c85;
  --teal-light:  #d0f0ee;

  /* Soft fills */
  --green-light: #d6ede0;

  /* Amber — Community Intelligence */
  --amber:       #d4821a;
  --amber-light: #fdf0dd;

  /* Purple — Staff Analytics */
  --purple:      #6c3fc5;
  --purple-light:#ede8fb;

  /* Orange — Data Storytelling */
  --orange:      #c75c1a;
  --orange-light:#fdeee5;

  /* Blue — Portfolio/Tech */
  --blue:        #1a6bc5;
  --blue-light:  #ddeeff;

  /* Text */
  --text:        #1a2e1c;
  --text-mid:    #3d5c42;
  --text-muted:  #6b8f72;
  --white:       #ffffff;

  /* Semantic */
  --red:         #c0392b;
  --red-light:   #fde8e8;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}

/* ════════════════════════════════
   NAVIGATION
   ════════════════════════════════ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 3rem; height: 64px;
  background: rgba(247,250,247,0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-brand { display: flex; flex-direction: column; line-height: 1.1; text-decoration: none; }
.nav-name  { font-family: 'Playfair Display', serif; font-size: 1.05rem; font-weight: 700; color: var(--green-dark); letter-spacing: -0.01em; }
.nav-sub   { font-family: 'JetBrains Mono', monospace; font-size: 0.58rem; letter-spacing: 0.12em; color: var(--teal); text-transform: uppercase; }

.nav-links { display: flex; gap: 1.75rem; list-style: none; align-items: center; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: 0.875rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--green-dark); }
.nav-cta { padding: 0.5rem 1.25rem !important; background: var(--green-mid) !important; color: var(--white) !important; border-radius: 6px !important; font-weight: 600 !important; }
.nav-cta:hover { background: var(--green-dark) !important; }

/* ════════════════════════════════
   BUTTONS
   ════════════════════════════════ */
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.8rem 1.75rem; background: var(--green-mid); color: #fff;
  font-weight: 600; font-size: 0.9rem; font-family: 'Plus Jakarta Sans', sans-serif;
  border-radius: 8px; text-decoration: none; border: none; cursor: pointer;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover { background: var(--green-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(45,122,79,0.25); }

.btn-outline {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.8rem 1.75rem; border: 1.5px solid var(--border2); color: var(--text-mid);
  font-size: 0.9rem; font-weight: 500; border-radius: 8px; text-decoration: none; background: var(--white);
  transition: border-color 0.2s, color 0.2s, box-shadow 0.2s;
}
.btn-outline:hover { border-color: var(--teal); color: var(--teal); box-shadow: 0 4px 12px rgba(30,140,133,0.12); }

.btn-white {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; background: var(--white); color: var(--green-dark);
  font-weight: 700; font-size: 0.875rem; border-radius: 8px; text-decoration: none;
  transition: box-shadow 0.2s, transform 0.2s;
}
.btn-white:hover { box-shadow: 0 6px 20px rgba(0,0,0,0.2); transform: translateY(-2px); }

.btn-white-ghost {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; border: 1.5px solid rgba(255,255,255,0.28);
  color: rgba(255,255,255,0.8); font-size: 0.875rem; border-radius: 8px; text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}
.btn-white-ghost:hover { border-color: #fff; color: #fff; }

/* ════════════════════════════════
   TYPOGRAPHY UTILITIES
   ════════════════════════════════ */
.kicker {
  font-family: 'JetBrains Mono', monospace; font-size: 0.7rem;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--teal);
  margin-bottom: 0.6rem; display: block;
}
h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.15; letter-spacing: -0.02em; color: var(--green-dark); margin-bottom: 1rem;
}

/* ════════════════════════════════
   TAGS & BADGES
   ════════════════════════════════ */
.tag {
  font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; padding: 0.2rem 0.55rem;
  background: var(--bg2); border: 1px solid var(--border); border-radius: 4px; color: var(--text-muted);
}
.status-badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: 'JetBrains Mono', monospace; font-size: 0.65rem;
  letter-spacing: 0.08em; text-transform: uppercase; padding: 0.28rem 0.7rem; border-radius: 100px;
}
.status-live { background: #e8f7ef; color: #1a7a42; border: 1px solid rgba(26,122,66,0.2); }
.status-soon { background: var(--amber-light); color: var(--amber); border: 1px solid rgba(212,130,26,0.25); }
.status-dot  { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.status-live .status-dot { animation: pulse 1.8s infinite; }

/* ════════════════════════════════
   SECTION SHELL
   ════════════════════════════════ */
.section-wrap { padding: 6rem 3rem; }
.section-wrap.alt { background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-inner { max-width: 1100px; margin: 0 auto; }

/* ════════════════════════════════
   PAGE HERO (inner pages)
   ════════════════════════════════ */
.page-hero { padding: 120px 3rem 4rem; border-bottom: 1px solid var(--border); background: linear-gradient(180deg, var(--bg2) 0%, var(--bg) 100%); }
.page-hero-inner { max-width: 1100px; margin: 0 auto; }
.page-hero h1 { font-family: 'Playfair Display', serif; font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.025em; line-height: 1.1; color: var(--green-dark); margin-bottom: 1rem; opacity: 0; animation: fadeUp 0.6s 0.1s ease forwards; }
.page-hero p  { color: var(--text-mid); font-size: 1.1rem; max-width: 600px; line-height: 1.75; opacity: 0; animation: fadeUp 0.6s 0.2s ease forwards; }
.page-hero .kicker { opacity: 0; animation: fadeUp 0.6s 0.05s ease forwards; }

/* ════════════════════════════════
   SCROLL REVEAL
   ════════════════════════════════ */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ════════════════════════════════
   ANIMATIONS
   ════════════════════════════════ */
@keyframes fadeUp   { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeLeft { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes pulse    { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(0.8); } }
@keyframes float    { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes shimmer  { 0% { background-position: -200% center; } 100% { background-position: 200% center; } }

/* ════════════════════════════════
   FOOTER
   ════════════════════════════════ */
footer { background: var(--green-dark); padding: 2.5rem 3rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-brand { font-family: 'Playfair Display', serif; font-size: 1rem; color: rgba(255,255,255,0.85); }
.footer-brand span { font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.35); display: block; margin-top: 0.15rem; }
.footer-links { display: flex; gap: 1.75rem; list-style: none; }
.footer-links a { color: rgba(255,255,255,0.45); text-decoration: none; font-size: 0.8rem; font-family: 'JetBrains Mono', monospace; transition: color 0.2s; }
.footer-links a:hover { color: rgba(255,255,255,0.85); }

/* ════════════════════════════════
   MODULE-TO-MODULE NAV
   ════════════════════════════════ */
.mod-page-nav { max-width: 1000px; margin: 0 auto; padding: 0 3rem 4rem; display: flex; gap: 1rem; }
.nav-prev, .nav-next { flex: 1; padding: 1.25rem 1.5rem; background: var(--white); border: 1.5px solid var(--border); border-radius: 12px; text-decoration: none; color: var(--text); transition: border-color 0.2s, box-shadow 0.2s; }
.nav-prev:hover, .nav-next:hover { border-color: var(--green); box-shadow: 0 4px 14px rgba(26,74,46,0.09); }
.nav-prev { text-align: left; }
.nav-next { text-align: right; }
.nav-dir { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 0.3rem; }
.nav-mod-title { font-weight: 600; font-size: 0.875rem; color: var(--green-dark); line-height: 1.4; }

/* ════════════════════════════════
   RESPONSIVE
   ════════════════════════════════ */
@media (max-width: 960px) {
  nav { padding: 0 1.5rem; }
  .nav-links { display: none; }
  .section-wrap { padding: 4rem 1.5rem; }
  .page-hero { padding: 100px 1.5rem 3rem; }
  footer { padding: 2rem 1.5rem; }
  .mod-page-nav { padding: 0 1.5rem 3rem; flex-direction: column; }
}

/* ── REVEAL SCRIPT shared helper ── */
/* Add this to every page:
<script>
  const obs=new IntersectionObserver(e=>e.forEach(x=>{if(x.isIntersecting){
    const s=x.target.parentElement.querySelectorAll('.reveal');
    let d=0; s.forEach((el,i)=>{if(el===x.target)d=i*80;});
    setTimeout(()=>x.target.classList.add('visible'),Math.min(d,350));
    obs.unobserve(x.target);}}),{threshold:0.1});
  document.querySelectorAll('.reveal').forEach(el=>obs.observe(el));
</script>
*/