/* Sonvi Bio — functional pouch OEM/ODM B2B site
   Palette: warm-white base + near-black ink header + electric-lime accent
   (benchmarked against peer B2B manufacturers: Nichaven, MultiFill, FEDRS) */
:root{
  /* accent */
  --lime:#c8f542; --lime-dark:#a9d61f; --lime-pale:#f3fce0;
  /* brand (supporting only) */
  --green:#0e7a5b; --green-dark:#0a5a43; --green-light:#e9f6f0;
  /* ink / surfaces */
  --ink:#16181a; --ink2:#0c0e0d; --muted:#606a64; --line:#e7e7e2;
  --bg:#fffdf8; --bg-soft:#f4f3ec; --paper:#ffffff;
  --gold:#c9a24b; --radius:14px; --shadow:0 12px 34px rgba(20,22,18,.08);
  --maxw:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Inter","Segoe UI",-apple-system,Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--green);text-decoration:none}
a:hover{color:var(--green-dark)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);font-weight:800;letter-spacing:-.02em}
h1{font-size:clamp(2rem,4.4vw,3.3rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem)}
h3{font-size:1.25rem}
.muted{color:var(--muted)}
.center{text-align:center}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--ink);background:var(--lime);padding:6px 14px;border-radius:999px}
.section{padding:76px 0}
.section.soft{background:var(--bg-soft)}
.grid{display:grid;gap:26px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px)}
.btn{display:inline-block;background:var(--ink2);color:#fff;font-weight:700;padding:14px 30px;border-radius:10px;border:0;cursor:pointer;font-size:1rem;transition:background .2s,transform .15s}
.btn:hover{background:#000;color:#fff}
.btn.ghost{background:transparent;color:var(--ink);border:2px solid rgba(255,255,255,.55)}
.btn.ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn.lime{background:var(--lime);color:var(--ink2)}
.btn.lime:hover{background:var(--lime-dark);color:var(--ink2)}
.btn.gold{background:var(--gold);color:var(--ink2)}
.btn.lg{padding:17px 38px;font-size:1.08rem}

/* ============ clean flat main nav (peer-benchmarked) ============ */
.topbar{display:none}

header.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.nav.scrolled{box-shadow:0 4px 22px rgba(20,22,18,.07)}
.nav-inner{display:flex;align-items:center;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.24rem;color:var(--ink);white-space:nowrap;flex-shrink:0}
.brand img{height:38px;width:auto}
.brand small{display:block;font-size:.55rem;letter-spacing:.18em;color:var(--muted);font-weight:700}

.nav-links{display:flex;gap:1px;margin-left:auto;align-items:center}
.nav-links > a{
  position:relative;color:var(--ink);font-weight:500;font-size:.93rem;letter-spacing:.01em;
  padding:9px 11px;white-space:nowrap;border-radius:0;flex-shrink:0}
.nav-links > a::after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
  background:var(--lime-dark);transform:scaleX(0);transform-origin:center;transition:transform .18s}
.nav-links > a:hover{color:var(--green-dark)}
.nav-links > a:hover::after,.nav-links > a.active::after{transform:scaleX(1)}
.nav-links > a.active{color:var(--green-dark);font-weight:700}

.nav-right{display:flex;align-items:center;gap:11px;margin-left:14px;flex-shrink:0}
.langswitch{position:relative}
.langswitch button{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1.5px solid var(--line);border-radius:999px;
  padding:8px 14px;font-weight:600;color:var(--ink);cursor:pointer;font-size:.9rem;transition:border-color .15s}
.langswitch button:hover{border-color:var(--ink)}
.langswitch button svg{width:16px;height:16px}
.lang-caret{font-size:.62rem;opacity:.55}
.langmenu{position:absolute;right:0;top:48px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:0 22px 50px rgba(20,22,18,.14);
  min-width:232px;padding:8px;display:none;max-height:62vh;overflow:auto;z-index:200}
.langmenu.open{display:grid;grid-template-columns:1fr 1fr;gap:2px}
.langmenu a{padding:8px 10px;border-radius:8px;font-size:.88rem;color:var(--ink);font-weight:500}
.langmenu a:hover{background:var(--lime-pale);color:var(--ink)}
.btn.nav-cta{padding:11px 24px;border-radius:999px;font-weight:800;font-size:.95rem;background:var(--lime);color:var(--ink2);
  box-shadow:0 8px 20px rgba(169,214,31,.35);white-space:nowrap}
.btn.nav-cta:hover{background:var(--lime-dark);color:var(--ink2)}
.burger{display:none;background:none;border:0;cursor:pointer;padding:6px;margin-left:auto}
.burger svg{width:26px;height:26px;stroke:var(--ink)}

/* hero */
.hero{background:radial-gradient(1200px 500px at 85% -10%,rgba(200,245,66,.18),transparent 60%),linear-gradient(135deg,#0c0e0d 0%,#171d18 55%,#20281f 100%);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(200,245,66,.22),transparent 70%)}
.hero .container{position:relative;z-index:2;padding-top:88px;padding-bottom:88px;display:grid;grid-template-columns:1.1fr .9fr;gap:46px;align-items:center}
.hero h1{color:#fff}
.hero p.lead{font-size:1.16rem;color:#cdd6cf;max-width:560px}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}
.badge{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.22);padding:7px 14px;border-radius:999px;font-size:.83rem;font-weight:600;color:#eef3ee}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-actions .btn.lime{box-shadow:0 12px 30px rgba(169,214,31,.32)}
.hero-visual{background:#fff;border-radius:20px;box-shadow:0 30px 60px rgba(0,0,0,.35);padding:18px}
.hero-visual img{border-radius:12px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:-52px;position:relative;z-index:5}
.stat{background:var(--paper);border-radius:var(--radius);padding:26px 20px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--line)}
.stat .num{font-size:2.3rem;font-weight:900;color:var(--ink);line-height:1}
.stat .num em{font-style:normal;color:var(--green-dark)}
.stat .lbl{color:var(--muted);font-size:.9rem;margin-top:8px;font-weight:600}

.feature-icon{width:54px;height:54px;border-radius:13px;background:var(--lime-pale);display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:14px}
.product-card{display:flex;flex-direction:column}
.product-card .tag{font-size:.74rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--green-dark);margin-bottom:6px}
.product-card ul{padding-left:18px;color:var(--muted);margin:8px 0 18px}
.product-card .btn{margin-top:auto;align-self:flex-start}
.ingredient{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px dashed var(--line)}
.ingredient:last-child{border-bottom:0}
.ingredient b{color:var(--ink)}

/* steps */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:12px;background:var(--ink2);color:var(--lime);font-weight:900;font-size:1.1rem;margin-bottom:14px}

.cta-band{background:linear-gradient(120deg,#0c0e0d,#20281f);color:#fff;border-radius:22px;padding:54px 46px;text-align:center;position:relative;overflow:hidden}
.cta-band h2{color:#fff}
.cta-band p{color:#cdd6cf;max-width:620px;margin:10px auto 24px}

/* page hero (inner) */
.page-hero{background:radial-gradient(900px 400px at 88% -20%,rgba(200,245,66,.16),transparent 60%),linear-gradient(135deg,#0c0e0d,#20281f);color:#fff;padding:64px 0}
.page-hero h1{color:#fff;margin:0 0 10px}
.page-hero p{color:#cdd6cf;max-width:720px;margin:0}
.breadcrumb{font-size:.85rem;margin-bottom:18px;opacity:.85}
.breadcrumb a{color:var(--lime);text-decoration:underline}

/* faq */
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:var(--paper);overflow:hidden}
.faq-item summary{padding:18px 22px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.5rem;color:var(--green-dark);flex-shrink:0}
.faq-item[open] summary::after{content:"–"}
.faq-item .answer{padding:0 22px 20px;color:var(--muted)}

/* forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
label{font-weight:700;font-size:.9rem}
input,select,textarea{padding:13px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:1rem;font-family:inherit;width:100%;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--green-dark);box-shadow:0 0 0 3px rgba(200,245,66,.45)}
.form-card{background:var(--paper);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px;border:1px solid var(--line)}
.alert{padding:14px 18px;border-radius:10px;margin-bottom:16px;font-weight:600}
.alert.ok{background:var(--lime-pale);color:var(--ink)}
.alert.err{background:#fdecec;color:#a33}

/* compliance */
.cert{display:flex;gap:16px;align-items:flex-start;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}
.cert .seal{flex-shrink:0;width:60px;height:60px;border-radius:50%;background:var(--lime-pale);display:flex;align-items:center;justify-content:center;font-size:1.7rem}

/* chatbot */
.chat-fab{position:fixed;right:22px;bottom:22px;width:62px;height:62px;border-radius:50%;background:var(--lime);color:var(--ink2);border:0;cursor:pointer;
  font-size:1.6rem;box-shadow:0 12px 30px rgba(20,22,18,.35);z-index:900;display:flex;align-items:center;justify-content:center}
.chat-panel{position:fixed;right:22px;bottom:94px;width:min(380px,calc(100vw - 40px));height:560px;max-height:calc(100vh - 130px);
  background:#fff;border-radius:18px;box-shadow:0 24px 60px rgba(0,0,0,.28);display:none;flex-direction:column;overflow:hidden;z-index:900;border:1px solid var(--line)}
.chat-panel.open{display:flex}
.chat-head{background:var(--ink2);color:#fff;padding:16px 18px;display:flex;align-items:center;gap:10px}
.chat-head b{font-size:1rem}
.chat-head .dot{width:9px;height:9px;border-radius:50%;background:var(--lime)}
.chat-body{flex:1;overflow-y:auto;padding:16px;background:var(--bg-soft);display:flex;flex-direction:column;gap:10px}
.msg{max-width:82%;padding:11px 14px;border-radius:14px;font-size:.93rem;white-space:pre-wrap;word-wrap:break-word}
.msg.bot{background:#fff;border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.user{background:var(--ink2);color:var(--lime);align-self:flex-end;border-bottom-right-radius:4px}
.msg.typing{color:var(--muted);font-style:italic}
.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:#fff}
.chat-input input{flex:1}
.chat-input button{padding:0 18px}

footer{background:var(--ink2);color:#9fb0a7;padding:60px 0 26px;margin-top:0}
footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
footer a{color:#9fb0a7;display:block;padding:4px 0;font-size:.92rem}
footer a:hover{color:var(--lime)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.footer-bottom{border-top:1px solid #28312b;margin-top:40px;padding-top:22px;font-size:.85rem;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ============ responsive ============ */
/* narrower laptops / long-label languages: collapse the flat nav into a clean burger drawer */
@media(max-width:1300px){
  .burger{display:block}
  .nav-links{position:fixed;inset:74px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;
    gap:0;padding:10px 20px 22px;border-bottom:1px solid var(--line);display:none;box-shadow:var(--shadow);
    max-height:calc(100vh - 100px);overflow:auto;margin-left:0}
  .nav-links.open{display:flex}
  .nav-links > a{padding:14px 6px;font-size:1.02rem;width:100%;border-bottom:1px solid var(--line);border-radius:0}
  .nav-links > a::after{display:none}
  .nav-right{margin-left:0;width:100%;justify-content:space-between;gap:10px;margin-top:14px}
  .btn.nav-cta{flex:1;text-align:center}
  .langmenu{position:static;grid-template-columns:1fr 1fr;margin-top:8px;min-width:0}
}
@media(max-width:980px){
  .g4{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:1fr} .g2{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .hero .container{grid-template-columns:1fr;padding-top:56px;padding-bottom:56px}
  .stats{grid-template-columns:repeat(2,1fr);margin-top:-30px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .g4{grid-template-columns:1fr} .steps{grid-template-columns:1fr} .form-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr} .footer-grid{grid-template-columns:1fr}
  .section{padding:52px 0} .cta-band{padding:38px 22px}
}
[dir="rtl"] body{font-family:"Segoe UI",Tahoma,"Noto Sans Arabic",Arial,sans-serif}
[dir="rtl"] .msg.bot{align-self:flex-end;border-bottom-left-radius:14px;border-bottom-right-radius:4px}
[dir="rtl"] .msg.user{align-self:flex-start;border-bottom-right-radius:14px;border-bottom-left-radius:4px}
[dir="rtl"] .dropdown{left:auto;right:0}