/* ============================================================
   Green Leaf Dental — clinic-site styles (nav, footer, base, variables)
   ============================================================ */
:root{
  --accent:#0d9488;
  --accent-dark:#0a746a;
  --dark:#0f2027;
  --gold:#f59e0b;
  --bg:#f8faf9;
  --text:#1f2d2b;
  --muted:#647a76;
  --border:#e2e8e6;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:'Segoe UI', system-ui, sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
}
a{ color:inherit; }
img{ max-width:100%; }

.container{
  max-width:1100px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Nav ---------- */
.site-nav{
  position:sticky;
  top:0;
  z-index:1000;
  background:var(--dark);
  color:#fff;
  box-shadow:0 2px 10px rgba(0,0,0,0.12);
}
.site-nav .nav-inner{
  position:relative;
  max-width:1100px;
  margin:0 auto;
  padding:14px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}
.nav-toggle{
  display:none;
  background:none;
  border:none;
  color:#fff;
  cursor:pointer;
  padding:6px;
  align-items:center;
  justify-content:center;
}
.nav-toggle svg{ width:24px; height:24px; display:block; }
.site-nav .brand{
  font-size:18px;
  font-weight:700;
  letter-spacing:.01em;
  display:flex;
  align-items:center;
  gap:8px;
  text-decoration:none;
  color:#fff;
}
.site-nav .brand .leaf{ color:var(--gold); }
.site-nav .nav-links{
  display:flex;
  gap:22px;
  list-style:none;
  margin:0;
  padding:0;
  flex-wrap:wrap;
}
.site-nav .nav-links a{
  text-decoration:none;
  color:#cfe3e0;
  font-size:14px;
  font-weight:500;
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:color .15s ease, border-color .15s ease;
}
.site-nav .nav-links a:hover{
  color:#fff;
  border-bottom-color:var(--gold);
}
.site-nav{ transition: box-shadow .25s ease; }
.site-nav .nav-inner{ transition: padding .25s ease; }
.site-nav.scrolled{ box-shadow:0 8px 24px rgba(0,0,0,0.28); }
.site-nav.scrolled .nav-inner{ padding-top:9px; padding-bottom:9px; }

/* ---------- Mobile nav ---------- */
@media (max-width:760px){
  .nav-toggle{ display:flex; }
  .site-nav .nav-links{
    display:none;
    flex-direction:column;
    gap:0;
    width:100%;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:var(--dark);
    padding:4px 24px 14px;
    box-shadow:0 12px 24px rgba(0,0,0,0.3);
  }
  .site-nav .nav-links.open{ display:flex; }
  .site-nav .nav-links li{ width:100%; }
  .site-nav .nav-links a{
    display:block;
    width:100%;
    padding:12px 2px;
    border-bottom:1px solid rgba(255,255,255,0.1);
  }
  .site-nav .nav-links li:last-child a{ border-bottom:none; }
}

/* ---------- Scroll-reveal utility ---------- */
.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1);
}
.reveal.in-view{
  opacity:1;
  transform:none;
}
@media (prefers-reduced-motion: reduce){
  .reveal{ transition:none; opacity:1; transform:none; }
  *, *::before, *::after{
    animation-duration:0.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;
  border:none;
  border-radius:8px;
  padding:13px 28px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  text-decoration:none;
  transition:transform .15s ease, box-shadow .15s ease;
}
.btn-primary{
  background:var(--gold);
  color:var(--dark);
}
.btn-primary:hover{
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(245,158,11,0.35);
}
.btn-outline{
  background:transparent;
  color:#fff;
  border:1.5px solid rgba(255,255,255,0.5);
}
.btn-outline:hover{
  border-color:#fff;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--dark);
  color:#cfe3e0;
  padding:44px 0 24px;
  margin-top:60px;
}
.site-footer .footer-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));
  gap:28px;
  margin-bottom:28px;
}
.site-footer h3{
  color:#fff;
  font-size:14px;
  text-transform:uppercase;
  letter-spacing:.06em;
  margin:0 0 12px;
}
.site-footer p{ margin:0 0 6px; font-size:13.5px; }
.site-footer .socials{
  display:flex;
  gap:12px;
  margin-top:10px;
}
.site-footer .socials a{
  width:34px;
  height:34px;
  border-radius:50%;
  background:rgba(255,255,255,0.08);
  display:flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  transition:background .15s ease;
}
.site-footer .socials a:hover{ background:var(--accent); }
.site-footer .socials svg{ width:16px; height:16px; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.12);
  padding-top:18px;
  font-size:12.5px;
  color:#8fa8a4;
  text-align:center;
}

/* ---------- Section helpers ---------- */
.section{ padding:72px 0; }
.section-title{
  font-size:28px;
  font-weight:700;
  color:var(--dark);
  margin:0 0 10px;
  text-align:center;
}
.section-sub{
  text-align:center;
  color:var(--muted);
  font-size:15px;
  max-width:560px;
  margin:0 auto 40px;
}

@media (max-width:600px){
  .section{ padding:48px 0; }
  .section-title{ font-size:23px; }
  .section-sub{ margin:0 auto 28px; }
  .container{ padding:0 18px; }
}