/* ============================================================
   NutriPath — styles.css
   Palette: deep forest, emerald, warm gold, soft cream, ink
   ============================================================ */

:root{
  --ink:#0c1612;
  --forest:#0f2e22;
  --emerald:#1faa6a;
  --emerald-bright:#28c97f;
  --gold:#e7b85c;
  --cream:#f6f4ec;
  --paper:#ffffff;
  --muted:#5d6b63;
  --line:rgba(15,46,34,.10);
  --radius:22px;
  --shadow:0 24px 60px -20px rgba(12,22,18,.28);
  --max:1140px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,sans-serif;
  color:var(--ink);
  background:var(--cream);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,.brand-name{font-family:'Sora',sans-serif;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.grad{
  background:linear-gradient(105deg,var(--emerald-bright),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--forest);color:#fff;font-weight:600;
  padding:.8rem 1.4rem;border-radius:100px;transition:.25s;
  font-family:'Sora',sans-serif;font-size:.95rem;
}
.btn:hover{background:var(--emerald);transform:translateY(-2px)}
.btn-sm{padding:.6rem 1.1rem;font-size:.88rem}

.store-btn{
  display:inline-flex;align-items:center;gap:.65rem;
  background:var(--ink);color:#fff;border-radius:14px;
  padding:.7rem 1.15rem;transition:.25s;border:1px solid rgba(255,255,255,.08);
}
.store-btn:hover{transform:translateY(-3px);box-shadow:0 16px 30px -12px rgba(12,22,18,.5)}
.store-btn svg{width:26px;height:26px}
.store-btn span{display:flex;flex-direction:column;line-height:1.1;text-align:left}
.store-btn small{font-size:.62rem;letter-spacing:.06em;opacity:.8;text-transform:uppercase}
.store-btn strong{font-size:1.02rem;font-family:'Sora',sans-serif;font-weight:600}

.eyebrow{
  font-family:'Sora',sans-serif;font-weight:600;font-size:.78rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--emerald);
  margin-bottom:.9rem;
}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  padding:.7rem 1.2rem;transition:.3s;
}
.nav.scrolled{background:rgba(246,244,236,.82);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line)}
.nav-inner{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:700}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--emerald),var(--forest));color:#fff;
}
.brand-mark svg{width:20px;height:20px}
.brand-name{font-size:1.18rem;font-weight:700}
.nav-links{display:flex;gap:1.6rem;font-size:.94rem;font-weight:500}
.nav-links a{color:var(--muted);transition:.2s}
.nav-links a:hover{color:var(--ink)}

/* ---------- hero ---------- */
.hero{position:relative;padding:9rem 1.2rem 4rem;overflow:hidden}
.hero-glow{
  position:absolute;top:-20%;right:-10%;width:60vw;height:60vw;max-width:760px;max-height:760px;
  background:radial-gradient(circle,rgba(40,201,127,.22),transparent 60%);
  filter:blur(20px);z-index:0;pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;
}
.hero-copy h1{font-size:clamp(2.5rem,5.2vw,4rem);line-height:1.04;font-weight:800;margin-bottom:1.2rem}
.lede{font-size:1.15rem;color:var(--muted);max-width:34ch;margin-bottom:2rem}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap}
.hero-cta.center{justify-content:center}
.hero-note{margin-top:1.1rem;font-size:.85rem;color:var(--muted)}

/* ---------- hero real screenshot ---------- */
.hero-shot{position:relative;display:flex;justify-content:center;align-items:center}
.shot-glow{
  position:absolute;width:90%;height:80%;border-radius:50%;
  background:radial-gradient(circle,rgba(40,201,127,.35),transparent 65%);
  filter:blur(30px);z-index:0;
}
.hero-img{
  position:relative;z-index:1;width:300px;max-width:78%;height:auto;
  filter:drop-shadow(0 30px 50px rgba(0,0,0,.45));
  animation:float 6s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.float-chip{
  position:absolute;z-index:2;background:rgba(255,255,255,.95);color:var(--ink);
  font-weight:600;font-size:.82rem;padding:.5rem .85rem;border-radius:12px;
  box-shadow:0 12px 28px -10px rgba(12,22,18,.4);backdrop-filter:blur(4px);
}
.chip-a{top:16%;left:2%;animation:float 5s ease-in-out infinite}
.chip-b{bottom:18%;right:2%;animation:float 5.5s ease-in-out infinite .5s}

/* ---------- trust strip ---------- */
.strip{background:var(--forest);color:#fff;padding:2.2rem 1.2rem}
.strip-inner{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;text-align:center}
.stat b{display:block;font-family:'Sora',sans-serif;font-size:1.7rem;color:var(--gold)}
.stat span{font-size:.86rem;opacity:.82}

/* ---------- features ---------- */
.features{max-width:var(--max);margin:0 auto;padding:6rem 1.2rem}
.section-head{text-align:center;max-width:38ch;margin:0 auto 3.2rem}
.section-head h2{font-size:clamp(1.8rem,3.6vw,2.7rem);line-height:1.1}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem}
.feat{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.8rem 1.6rem;transition:.3s;position:relative;overflow:hidden;
}
.feat:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.feat::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;opacity:0;transition:.3s}
.feat:hover::before{opacity:1}
.feat[data-accent="emerald"]::before{background:var(--emerald)}
.feat[data-accent="gold"]::before{background:var(--gold)}
.feat[data-accent="navy"]::before{background:#2b5e8c}
.feat-ico{font-size:2rem;margin-bottom:1rem}
.feat h3{font-size:1.2rem;margin-bottom:.5rem}
.feat p{color:var(--muted);font-size:.95rem}

/* ---------- showcase ---------- */
.showcase{background:var(--forest);color:#fff;padding:6rem 1.2rem}
.showcase .section-head h2{color:#fff}
.showcase .eyebrow{color:var(--gold)}
.shots{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;align-items:end}
.shot-card{text-align:center;margin:0}
.shot-card img{
  width:100%;max-width:260px;height:auto;margin:0 auto .9rem;
  border-radius:24px;filter:drop-shadow(0 24px 40px rgba(0,0,0,.5));transition:.4s;
}
.shot-card:hover img{transform:translateY(-8px)}
.shot-card.featured img{max-width:280px}
.shot-card figcaption strong{display:block;font-family:'Sora',sans-serif;font-size:1.1rem;margin-bottom:.2rem}
.shot-card figcaption span{font-size:.88rem;opacity:.7}

/* ---------- how (adjust now it follows dark showcase) ---------- */
.how{background:var(--paper);padding:6rem 1.2rem;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:center;gap:1.2rem;flex-wrap:wrap}
.step{flex:1;min-width:200px;max-width:280px;text-align:center}
.step-no{font-family:'Sora',sans-serif;font-size:2.4rem;font-weight:800;color:transparent;-webkit-text-stroke:1.5px var(--emerald);display:block;margin-bottom:.6rem}
.step h3{font-size:1.25rem;margin-bottom:.4rem}
.step p{color:var(--muted);font-size:.94rem}
.step-line{flex:0 0 60px;height:2px;background:linear-gradient(90deg,var(--emerald),transparent);align-self:flex-start;margin-top:2.4rem}

/* ---------- download ---------- */
.download{padding:6rem 1.2rem}
.download-card{
  position:relative;max-width:900px;margin:0 auto;text-align:center;
  background:linear-gradient(160deg,var(--forest),#0a1f17);color:#fff;
  border-radius:34px;padding:4rem 2rem;overflow:hidden;box-shadow:var(--shadow);
}
.download-glow{position:absolute;bottom:-40%;left:50%;transform:translateX(-50%);width:120%;height:90%;background:radial-gradient(circle,rgba(231,184,92,.18),transparent 60%);pointer-events:none}
.download-card h2{position:relative;font-size:clamp(1.9rem,4vw,2.8rem);margin-bottom:.8rem}
.download-card p{position:relative;opacity:.85;max-width:40ch;margin:0 auto 2rem}

/* ---------- footer ---------- */
.footer{background:var(--ink);color:#fff;padding:3.5rem 1.2rem 1.5rem}
.footer-inner{max-width:var(--max);margin:0 auto;display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;padding-bottom:2rem;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;gap:.8rem;align-items:flex-start}
.footer-brand strong{font-family:'Sora',sans-serif;font-size:1.1rem}
.footer-brand p{font-size:.86rem;opacity:.6;margin-top:.2rem}
.footer-links{display:flex;gap:1.5rem;flex-wrap:wrap;font-size:.9rem}
.footer-links a{opacity:.75;transition:.2s}
.footer-links a:hover{opacity:1;color:var(--gold)}
.footer-base{max-width:var(--max);margin:1.5rem auto 0;font-size:.82rem;opacity:.5;text-align:center}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- legal pages ---------- */
.legal{max-width:760px;margin:0 auto;padding:8rem 1.2rem 4rem}
.legal h1{font-size:2.2rem;margin-bottom:.4rem}
.legal .updated{color:var(--muted);font-size:.9rem;margin-bottom:2.4rem}
.legal h2{font-size:1.3rem;margin:2rem 0 .6rem}
.legal p,.legal li{color:#2a3a32;margin-bottom:.8rem;font-size:1rem}
.legal ul{padding-left:1.3rem;margin-bottom:1rem}
.legal a{color:var(--emerald);font-weight:600}
.back-home{display:inline-flex;align-items:center;gap:.4rem;color:var(--emerald);font-weight:600;margin-bottom:2rem;font-size:.95rem}

/* ---------- responsive ---------- */
@media(max-width:880px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-copy .lede{margin-left:auto;margin-right:auto}
  .hero-cta{justify-content:center}
  .hero-shot{margin-top:1.5rem}
  .hero-img{width:260px}
  .feat-grid{grid-template-columns:1fr 1fr}
  .strip-inner{grid-template-columns:1fr 1fr;gap:1.8rem}
  .nav-links{display:none}
  .step-line{display:none}
  .shots{grid-template-columns:1fr;gap:2.5rem;max-width:320px}
  .shot-card img,.shot-card.featured img{max-width:240px}
}
@media(max-width:560px){
  .feat-grid{grid-template-columns:1fr}
  .hero{padding-top:7rem}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}