/* =========================
   Happy Planet – Site Styles (v3)
   Warm, modern, responsive
   Matches your HTML classes exactly
   ========================= */

:root{
  --bg:#fbfcff;
  --text:#132033;
  --muted:#55667a;
  --line:#e6edf4;

  --primary:#1dbf73;
  --secondary:#2db7ff;
  --accent:#ffd66e;

  --radius:16px;
  --shadow:0 10px 28px rgba(16,24,40,.10);
  --max:1120px;
}

/* ===== Base Reset ===== */
/* Screen-reader only text */
.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  line-height:1.65;
  background:
    radial-gradient(900px 500px at 12% 0%, rgba(45,183,255,.14), transparent 60%),
    radial-gradient(900px 500px at 92% 8%, rgba(29,191,115,.14), transparent 55%),
    radial-gradient(700px 420px at 50% 100%, rgba(255,214,110,.14), transparent 55%),
    var(--bg);
}

img{
  max-width:100%;
  height:auto;
  display:block;
  border-radius:18px;
  box-shadow:var(--shadow);
}

a{color:inherit;text-decoration:none;}

/* ===== Accessibility ===== */
.skip-link{
  position:absolute;
  left:-999px;
  top:auto;
  width:1px;height:1px;
  overflow:hidden;
}
.skip-link:focus{
  position:fixed;
  left:16px;top:16px;
  width:auto;height:auto;
  padding:10px 12px;
  background:#0b1220;
  color:#fff;
  border-radius:12px;
  z-index:9999;
}

/* ===== Layout ===== */
.container{
  max-width:var(--max);
  margin:0 auto;
  padding:0 20px;
}
main{display:block;}
section{padding:64px 0;}
main > section:first-child{padding-top:44px;}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background: rgba(255,255,255,.80);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner{
  position:relative; /* IMPORTANT for mobile dropdown positioning */
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  min-height:72px;
  padding:12px 0;
}

.brand-link{
  display:flex;
  align-items:center;
  gap: 12px;
  min-width:220px;
}

.brand-mark{
  width:40px;height:40px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,var(--primary),#18a862);
  color:#fff;
  font-weight:900;
  letter-spacing:.4px;
  box-shadow:0 10px 20px rgba(29,191,115,.18);
}

.brand-name{font-weight:900;line-height:1.1;}
.brand-tag{
  display:block;
  font-size:.86rem;
  color:var(--muted);
  margin-top:2px;
}

/* Desktop nav */
.site-nav{
  display:flex;
  align-items:center;
  gap:18px;
}

.site-nav a{
  font-weight:700;
  color:#1b2a3d;
  padding:8px 10px;
  border-radius:12px;
  transition:background .15s ease, transform .15s ease;
}
.site-nav a:hover{
  background:rgba(45,183,255,.10);
  transform:translateY(-1px);
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 16px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--primary),#16a965);
  color:#fff;
  font-size:.95rem;
  font-weight:900;
  border:none;
  box-shadow:0 10px 20px rgba(29,191,115,.18);
}
.btn.btn-small{padding:8px 14px;font-size:.9rem;}
.btn:hover{filter:brightness(.98);}
.btn:active{transform:translateY(1px);}

/* Nav toggle (MOBILE ONLY) */
.nav-toggle{
  display:none; /* hide on desktop */
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  padding:10px 12px;
  font-weight:900;
  cursor:pointer;
  box-shadow:0 8px 18px rgba(16,24,40,.08);
}

/* ===== Hero / Feature ===== */
.hero,
.feature{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:42px;
  align-items:center;
}

.hero-text h1{
  font-size:clamp(2.1rem,3vw,3.0rem);
  line-height:1.12;
  margin:0 0 14px 0;
  letter-spacing:-.02em;
}

.hero-text p{
  margin:0;
  font-size:1.1rem;
  color:var(--muted);
  max-width:52ch;
}

.feature h2{
  font-size:clamp(1.55rem,2.2vw,2.2rem);
  line-height:1.15;
  margin:0 0 10px 0;
  letter-spacing:-.01em;
}

.feature p{
  margin:0;
  color:var(--muted);
  font-size:1.05rem;
  max-width:60ch;
}

/* alternating section softness */
.feature:nth-of-type(even){
  background:rgba(255,255,255,.35);
  border-top:1px solid rgba(230,237,244,.7);
  border-bottom:1px solid rgba(230,237,244,.7);
}

/* ===== Footer (matches your HTML) ===== */
.site-footer{
  border-top:1px solid var(--line);
  padding:34px 0;
  background:rgba(255,255,255,.45);
}

.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap:24px;
  align-items:start;
}

.footer-title{
  font-weight:900;
  margin-bottom:10px;
}

.footer-links{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:8px;
}

.muted{color:var(--muted);}
.small{font-size:.92rem;}

/* ===== Responsive ===== */
@media (max-width:900px){
  section{padding:52px 0;}

  /* show toggle on mobile */
  .nav-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
  }

  /* dropdown nav on mobile */
  .site-nav{
    display:none;
    position:absolute;
    right:0;
    top:62px;
    background:rgba(255,255,255,.96);
    border:1px solid var(--line);
    border-radius:16px;
    padding:12px;
    flex-direction:column;
    gap:6px;
    min-width:220px;
    box-shadow:0 14px 32px rgba(16,24,40,.12);
  }

  .site-nav.open{display:flex;}

  .hero,
  .feature{
    grid-template-columns:1fr;
    gap:22px;
  }

  .footer-grid{
    grid-template-columns:1fr;
  }
}

@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-tag{display:none;}
}
/* --- Crisp UI: prevent blur from transforms/filters --- */
button, .btn, a.btn, input, textarea {
  transform: none !important;
  filter: none !important;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}
/* ===== Home page mobile margin fix ===== */
@media (max-width: 600px) {

  .hero,
  .feature {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero-text,
  .feature > div {
    margin-left: auto;
    margin-right: auto;
  }

}
.photo-card img {
  width: 100%;
  max-width: 420px;
  height: auto;
  margin: 0 auto;
  display: block;
}
@media (max-width: 600px) {
  .photo-card img {
    max-width: 320px;
  }
}