/* Natural Remedy AI — app-shell stylesheet (mobile-first, TWA-ready) */
:root{
  --green:#0a5c36;--green2:#127a4a;--dark:#0b2e1d;--bg:#f3f6f1;--card:#fff;
  --ink:#1e2a24;--mut:#6b7a70;--line:#e0e8e0;--gold:#c9a227;--gold-bg:#fdf3d7;
  --chat-user:#0a5c36;--chat-bot:#fff;--radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{height:100%}
body{
  font-family:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.5;
  overscroll-behavior-y:none;min-height:100%;
  padding-bottom:calc(74px + env(safe-area-inset-bottom)); /* room for tabbar */
  -webkit-font-smoothing:antialiased;
}
a{color:var(--green);text-decoration:none}
img{max-width:100%}
.hidden{display:none!important}
.mut{color:var(--mut);font-size:.9rem}

/* ---------- top app bar ---------- */
.topbar{
  position:sticky;top:0;z-index:20;
  background:rgba(10,92,54,.97);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  color:#fff;box-shadow:0 2px 14px rgba(11,46,29,.18);
  padding-top:env(safe-area-inset-top);
}
.topbar-in{max-width:1020px;margin:0 auto;padding:12px 16px;display:flex;align-items:center;gap:10px}
.brand{font-size:1.12rem;font-weight:800;color:#fff;letter-spacing:.2px;display:flex;align-items:center;gap:8px}
.brand .leaf{
  width:30px;height:30px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.16);font-size:1.05rem;flex:none;
}
.brand small{font-weight:600;opacity:.85;font-size:.68rem;display:block;line-height:1.1}
.topbar .sub{margin-left:auto;font-size:.72rem;font-weight:700;background:rgba(255,255,255,.14);
  padding:5px 11px;border-radius:99px;letter-spacing:.3px}

/* ---------- main content ---------- */
.content{max-width:1020px;margin:0 auto;padding:14px 16px calc(18px + env(safe-area-inset-bottom))}
section{margin-bottom:26px}

/* hero (home) — compact app card */
.hero{
  background:linear-gradient(135deg,#0b2e1d,#0a5c36 62%,#17794f);
  color:#fff;border-radius:var(--radius);padding:26px 22px;margin-top:6px;
  box-shadow:0 10px 26px rgba(10,92,54,.22);position:relative;overflow:hidden;
}
.hero::after{content:"";position:absolute;right:-40px;top:-46px;width:170px;height:170px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.14),transparent 65%)}
.hero h1{font-size:1.65rem;line-height:1.2;font-weight:800;margin-bottom:8px}
.hero h1 span{color:#ffd86b}
.hero p{font-size:.95rem;opacity:.94;max-width:520px}
.hero .pill{display:inline-block;margin-top:12px;font-size:.74rem;font-weight:700;
  background:rgba(255,255,255,.16);padding:5px 12px;border-radius:99px}

/* ---------- chat (ask) ---------- */
.askcard{background:transparent;border:0;box-shadow:none;padding:0;margin-top:22px}
.askcard h2{font-size:1.2rem;color:var(--dark);margin-bottom:2px}
.chatlog{display:flex;flex-direction:column;gap:10px;margin:14px 0}
.bub{max-width:86%;padding:11px 15px;font-size:.96rem;white-space:pre-wrap;word-break:break-word;
  border-radius:18px;animation:bubIn .22s ease}
@keyframes bubIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.bub.user{align-self:flex-end;background:var(--chat-user);color:#fff;border-bottom-right-radius:6px;
  box-shadow:0 3px 10px rgba(10,92,54,.18)}
.bub.bot{align-self:flex-start;background:var(--chat-bot);color:var(--ink);
  border:1px solid var(--line);border-bottom-left-radius:6px;display:flex;gap:9px;
  box-shadow:0 3px 12px rgba(11,46,29,.06)}
.bub.bot .avatar{flex:none;width:26px;height:26px;border-radius:50%;background:#e4f2e8;
  display:flex;align-items:center;justify-content:center;font-size:.9rem;margin-top:1px}
.bub.bot .txt{min-width:0}
.bub.bot .txt pre{margin:0;font:inherit;white-space:pre-wrap}
.sugg{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 12px}
.sugg button{background:#fff;border:1.4px solid var(--line);color:var(--green);font-weight:600;
  font-size:.84rem;padding:8px 14px;border-radius:99px;cursor:pointer;transition:.12s}
.sugg button:active{transform:scale(.96);background:#e4f2e8}
.composer{
  display:flex;align-items:flex-end;gap:9px;background:var(--card);
  border:1.5px solid var(--line);border-radius:26px;padding:7px 7px 7px 18px;
  box-shadow:0 8px 22px rgba(11,46,29,.08);position:sticky;bottom:calc(64px + env(safe-area-inset-bottom));
}
.composer input{
  flex:1;border:0;outline:0;font-size:1rem;padding:10px 0;background:transparent;min-width:0;
}
.composer input::placeholder{color:#94a298}
.composer button{
  flex:none;width:46px;height:46px;border:0;border-radius:50%;cursor:pointer;
  background:linear-gradient(135deg,var(--green),var(--green2));color:#fff;font-size:1.05rem;
  display:flex;align-items:center;justify-content:center;transition:.15s;
  box-shadow:0 4px 12px rgba(10,92,54,.3);
}
.composer button:active{transform:scale(.92)}
/* typing dots */
.typing{display:inline-flex;gap:5px;align-items:center;padding:6px 4px}
.typing i{width:7px;height:7px;border-radius:50%;background:#8aa99a;animation:blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}

/* ---------- section titles / chips ---------- */
.sec-title{margin:26px 0 12px;display:flex;align-items:center;gap:10px}
.sec-title h2{font-size:1.08rem;color:var(--dark)}
.sec-title .ln{flex:1;height:1px;background:var(--line)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:4px}
.chip{background:#fff;border:1.4px solid var(--line);border-radius:99px;padding:8px 15px;
  font-size:.86rem;color:var(--green);font-weight:650;transition:.13s}
.chip:active{background:var(--green);color:#fff;transform:scale(.95)}

/* ---------- herb grid ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 15px;color:inherit;display:flex;flex-direction:column;gap:6px;
  box-shadow:0 2px 8px rgba(11,46,29,.04);transition:.15s;animation:bubIn .3s ease backwards;
}
.card:active{transform:scale(.97);box-shadow:0 6px 16px rgba(10,92,54,.14)}
.card h3{color:var(--green);font-size:1rem;line-height:1.25}
.sci{font-size:.76rem;color:var(--mut);font-style:italic}
.card p{font-size:.84rem;color:#55675c;flex:1}
.cat{display:inline-flex;align-self:flex-start;background:#e4f2e8;color:var(--green);
  font-size:.7rem;font-weight:800;border-radius:7px;padding:3px 9px}
.cat.alt{background:var(--gold-bg);color:#8a6d00}

/* ---------- herb detail ---------- */
.herb{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;margin-top:10px;box-shadow:0 4px 16px rgba(11,46,29,.06)}
.herb h1{color:var(--green);font-size:1.5rem;margin:8px 0 2px}
.herb .sci.big{font-size:.95rem}
.back{display:inline-flex;align-items:center;gap:6px;font-weight:650;font-size:.9rem;
  background:#fff;border:1.4px solid var(--line);padding:7px 13px;border-radius:99px;margin-bottom:14px}
.back:active{transform:scale(.96)}
.desc{font-size:1rem;margin:12px 0}
.panel{background:#f0f6f0;border-radius:14px;padding:15px 17px;margin:12px 0;border:1px solid #e3efe5}
.panel h3{margin-bottom:5px;color:var(--dark);font-size:.98rem}
.panel p{font-size:.93rem}
.panel.warn{background:#fdf6e6;border:1px solid #f0e2b6}
.askmini{margin-top:18px;padding:16px;background:linear-gradient(135deg,var(--green),var(--green2));
  color:#fff;border-radius:14px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.askmini .t{font-weight:700;font-size:.98rem}
.askmini .t small{display:block;font-weight:500;opacity:.88;font-size:.8rem;margin-top:2px}
.askmini .cta{flex:none;background:#fff;color:var(--green);font-weight:800;font-size:.88rem;
  padding:10px 16px;border-radius:99px}
.askmini .cta:active{transform:scale(.95)}

/* ---------- bottom tab bar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:30;
  background:rgba(255,255,255,.96);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--line);box-shadow:0 -4px 18px rgba(11,46,29,.07);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar-in{max-width:1020px;margin:0 auto;display:flex;height:60px}
.tab{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  color:#85958a;font-size:.66rem;font-weight:700;letter-spacing:.2px;transition:.15s;
}
.tab .ico{font-size:1.25rem;line-height:1}
.tab:active{transform:scale(.94)}
.tab.on{color:var(--green)}
.tab.on .ico{filter:drop-shadow(0 2px 5px rgba(10,92,54,.35))}
.tab .dot{width:5px;height:5px;border-radius:50%;background:var(--green);opacity:0;transition:.15s}
.tab.on .dot{opacity:1}

/* ---------- footer ---------- */
footer{margin-top:8px;padding:18px 16px 6px;font-size:.8rem;color:var(--mut);text-align:center}

@media(min-width:760px){
  .grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
  .hero h1{font-size:2.1rem}
}