/* ============================================================
   IPL SITE — SHARED STYLES
   Common CSS used across all pages. Page-specific styles
   remain in each HTML file's <style> block.
   ============================================================ */

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

/* DESIGN TOKENS */
:root{
  --teal:#1A6B6A;
  --teal-deep:#155755;
  --teal-light:#258E8D;
  --teal-glow:rgba(26,107,106,0.1);
  --amber:#D4A537;
  --amber-soft:#C4963A;
  --amber-glow:rgba(212,165,55,0.1);
  --maroon:#7A0019;
  --maroon-glow:rgba(122,0,25,0.08);
  --cream:#FAF5EF;
  --cream-warm:#F5EDE2;
  --white:#FFFFFF;
  --charcoal:#2D2D2D;
  --text-body:#3D3D3D;
  --text-secondary:#6B6560;
  --text-muted:#9A938B;
  --border:rgba(0,0,0,0.06);
  --border-teal:rgba(26,107,106,0.15);
  --font-display:'Source Serif 4',Georgia,serif;
  --font-body:'Outfit',-apple-system,sans-serif;
  --font-mono:'JetBrains Mono',monospace;
}

/* BASE */
html{scroll-behavior:smooth;font-size:16px}
body{
  background:var(--cream);color:var(--charcoal);
  font-family:var(--font-body);line-height:1.7;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}

/* NAV */
nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:0.8rem 3rem;
  display:flex;justify-content:space-between;align-items:center;
  background:rgba(250,245,239,0.85);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);transition:all 0.4s;
}
nav.scrolled{padding:0.6rem 3rem;box-shadow:0 1px 20px rgba(0,0,0,0.04)}
.nav-logo{display:flex;align-items:center;gap:0.6rem;text-decoration:none}
.nav-logo img{height:46px;width:auto}
.nav-logo-text{
  font-family:var(--font-display);font-size:0.9rem;
  color:var(--charcoal);font-weight:600;line-height:1.2;
}
.nav-logo-text small{
  display:block;font-size:0.62rem;font-weight:400;
  color:var(--text-muted);font-family:var(--font-body);
  letter-spacing:0.02em;
}
.nav-links{display:flex;gap:2rem;align-items:center}
.nav-links a{
  color:var(--text-secondary);text-decoration:none;
  font-size:0.82rem;font-weight:500;letter-spacing:0.03em;
  text-transform:uppercase;transition:color 0.3s;
  text-align:center;
}

/* Mobile: Bootstrap's collapse opens .nav-links vertically.
   Our flex row must switch to column so links aren't clipped
   off-screen at the Bootstrap lg breakpoint (992px). */
@media(max-width:991.98px){
  .nav-links{flex-direction:column;align-items:flex-start;gap:0.25rem}
  .nav-links a{text-align:left;padding:0.45rem 0}
}
.nav-links a:hover,.nav-links{color:var(--teal)}
.nav-cta{
  background:var(--teal)!important;color:var(--white)!important;
  padding:0.5rem 1.3rem;border-radius:100px;font-weight:600!important;
  transition:transform 0.3s,box-shadow 0.3s,background 0.3s!important;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 4px 20px var(--teal-glow);background:var(--teal-light)!important}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:0.5rem}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--charcoal);margin:5px 0;transition:all 0.3s;border-radius:2px}

.dropdown-item.active{color:#ffffff;}

/* ANIMATIONS */
@keyframes fadeUp{from{opacity:0;transform:translateY(25px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.4;transform:scale(1.4)}}

/* SCROLL REVEALS */
.reveal{opacity:0;transform:translateY(24px);transition:opacity 0.7s ease,transform 0.7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* SECTIONS */
section{padding:6rem 3rem;position:relative}
.section-tag{font-family:var(--font-mono);font-size:1.1rem;color:var(--teal);letter-spacing:0.15em;text-transform:uppercase;margin-bottom:0.8rem;font-weight:bold;}
.section-title{font-family:var(--font-display);font-size:clamp(1.9rem,3.5vw,2.7rem);line-height:1.18;margin-bottom:1rem;color:var(--charcoal);font-weight:700}
.section-title em{font-style:italic;color:var(--teal);font-weight:400}
.section-sub{font-size:1rem;color:var(--text-secondary);max-width:580px;font-weight:300;line-height:1.7}
.section-header{margin-bottom:3.5rem}

/* BUTTONS */
.btn{
  display:inline-flex;align-items:center;gap:0.5rem;
  padding:0.82rem 1.9rem;border-radius:100px;
  font-family:var(--font-body);font-size:0.88rem;font-weight:600;
  text-decoration:none;transition:all 0.3s;cursor:pointer;border:none;
}
.btn-primary{background:var(--teal);color:var(--white)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--teal-glow);background:var(--teal-light)}
.btn-outline{background:transparent;color:var(--charcoal);border:1.5px solid rgba(0,0,0,0.12)}
.btn-outline:hover{border-color:var(--teal);color:var(--teal)}
.btn-amber{background:var(--amber);color:var(--white)}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--amber-glow);background:var(--amber-soft)}

/* STATS */
.stat-num{font-family:var(--font-display);font-size:2.2rem;color:var(--teal);line-height:1;font-weight:700}
.stat-label{font-size:0.76rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.06em;margin-top:0.3rem}

/* HERO TAG (shared across main pages) */
.hero-tag{
  font-family:var(--font-mono);font-size:0.73rem;
  color:var(--teal);letter-spacing:0.12em;text-transform:uppercase;
  margin-bottom:1.4rem;opacity:0;animation:fadeUp 0.8s 0.2s forwards;
}
.hero-tag .umn-mark{
  display:inline-block;background:var(--maroon);color:var(--white);
  padding:0.12rem 0.45rem;border-radius:3px;font-size:0.68rem;
  font-weight:500;margin-right:0.35rem;letter-spacing:0.04em;
}

/* IMAGE BREAK (dark split section) */
.image-break{
  position:relative;overflow:hidden;padding:0;
  background:var(--charcoal);
  display:flex;align-items:center;justify-content:center;
}
.image-break-inner{
  max-width:1260px;width:100%;margin:0 auto;
  display:grid;grid-template-columns:1fr 1fr;
  min-height:420px;
}
.image-break-text{
  display:flex;flex-direction:column;justify-content:center;
  padding:4rem 3rem;
}
.image-break-text .section-tag{color:var(--amber)}
.image-break-text h2{
  font-family:var(--font-display);font-size:clamp(1.6rem,3vw,2.2rem);
  color:var(--white);font-weight:600;line-height:1.3;margin-bottom:1rem;
}
.image-break-text h2 em{color:var(--amber);font-style:italic;font-weight:400}
.image-break-text p{color:rgba(255,255,255,0.6);font-weight:300;font-size:0.92rem;line-height:1.7;max-width:420px}
.image-break-img{
  display:flex;align-items:center;justify-content:center;
  padding:2rem;
}
.image-break-img img{
  max-height:380px;width:auto;max-width:100%;
  border-radius:12px;
  box-shadow:0 12px 40px rgba(0,0,0,0.3);
  border:1px solid rgba(255,255,255,0.08);
}

/* CTA SECTION */
.cta-section{text-align:center;padding:7rem 3rem;background:var(--cream)}
.cta-section h2{font-family:var(--font-display);font-size:clamp(1.9rem,3.5vw,2.7rem);margin-bottom:0.8rem;font-weight:700}
.cta-section h2 em{color:var(--teal);font-style:italic;font-weight:400}
.cta-section>div>p{color:var(--text-secondary);font-size:1rem;font-weight:300;max-width:480px;margin:0 auto 2.2rem}
.cta-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.cta-contact{margin-top:1.8rem;font-family:var(--font-mono);font-size:0.78rem;color:var(--text-muted)}

/* FOOTER */
footer{background:var(--charcoal);color:rgba(255,255,255,0.7);padding:3.5rem 3rem 2rem}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:2rem}
.footer-brand{font-family:var(--font-display);font-size:1.05rem;color:var(--white);margin-bottom:0.5rem}
.footer-sub{font-size:0.78rem;color:rgba(255,255,255,0.4);max-width:300px;line-height:1.6}
.footer-umn{display:inline-flex;align-items:center;gap:0.4rem;margin-top:0.7rem;padding:0.3rem 0.65rem;background:var(--maroon-glow);border:1px solid rgba(122,0,25,0.25);border-radius:4px;font-size:0.68rem;color:rgba(255,255,255,0.55);font-weight:500}
.footer-umn .block{display:inline-block;width:11px;height:11px;background:var(--maroon);border-radius:2px}
.footer-links{display:flex;gap:3rem}
.footer-col h5{font-size:0.68rem;text-transform:uppercase;letter-spacing:0.1em;color:rgba(255,255,255,0.3);margin-bottom:0.7rem}
.footer-col a{display:block;color:rgba(255,255,255,0.5);text-decoration:none;font-size:0.82rem;padding:0.18rem 0;transition:color 0.3s}
.footer-col a:hover{color:var(--amber)}
.footer-bottom{width:100%;padding-top:2rem;margin-top:2rem;border-top:1px solid rgba(255,255,255,0.07);font-size:0.7rem;color:rgba(255,255,255,0.25);display:flex;justify-content:space-between}

/* BACK LINK (article pages) */
.back-bar{text-align:center;padding:3rem 2rem;border-top:1px solid var(--border)}
.back-link{display:inline-flex;align-items:center;gap:0.5rem;color:var(--teal);text-decoration:none;font-size:0.9rem;font-weight:500;transition:gap 0.3s}
.back-link:hover{gap:0.8rem}

/* RESPONSIVE — base nav + section */
@media(max-width:900px){
  nav{padding:0.8rem 1.5rem}
  nav.scrolled{padding:0.6rem 1.5rem}
  section{padding:4rem 1.5rem}
  .image-break-inner{grid-template-columns:1fr}
  .image-break-text{padding:3rem 1.5rem}
  .image-break-img{padding:1.5rem}
  .footer-top{flex-direction:column}
  .footer-links{flex-wrap:wrap;gap:2rem}
  .footer-bottom{flex-direction:column;gap:0.5rem}
  .cta-section{padding:5rem 1.5rem}
}