/* ============================================================
   Winsail — Dental Prosthetics Manufacturer
   Brand palette: Sapphire Blue + Silver
   ============================================================ */

:root{
  --ink:#0A1A33;
  --ink-2:#2B3D55;
  --muted:#64748B;
  --line:#DDE4EC;
  --bg:#FFFFFF;
  --bg-soft:#F5F7FA;
  --bg-deep:#061631;

  /* sapphire */
  --brand:#0F3B87;
  --brand-lt:#2A63C9;
  --brand-deep:#092558;
  --brand-pale:#EAF0FA;

  /* silver */
  --silver:#C3CCD8;
  --silver-lt:#EEF2F6;
  --accent:#8FA3BD;

  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(10,26,51,.06),0 4px 12px rgba(10,26,51,.04);
  --shadow:0 2px 6px rgba(10,26,51,.07),0 16px 40px rgba(10,26,51,.09);
  --max:1200px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  font-size:16.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.18;letter-spacing:-.02em;font-weight:650}
h1{font-size:clamp(2.1rem,4.4vw,3.5rem)}
h2{font-size:clamp(1.6rem,3vw,2.35rem)}
h3{font-size:1.16rem;letter-spacing:-.01em}
p{margin:0 0 1em}
ul{margin:0 0 1em;padding-left:1.15em}
li{margin:.35em 0}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section--tight{padding:56px 0}
.section--soft{background:var(--bg-soft)}
.section--deep{background:var(--bg-deep);color:#E6EDF7}
.section--deep h2,.section--deep h3{color:#fff}
.section--deep p{color:#A6B8CE}

.eyebrow{
  display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.13em;
  text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}
.section--deep .eyebrow{color:#7FA6E8}
.lede{font-size:1.09rem;color:var(--ink-2);max-width:66ch}
.section--deep .lede{color:#B4C4D8}
.center{text-align:center}
.center .lede{margin-left:auto;margin-right:auto}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.95);
  backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:34px;height:132px}
.brand{display:flex;align-items:center;gap:11px;font-weight:750;font-size:1.2rem;letter-spacing:-.02em}
.brand img{height:102px;width:auto;display:block}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:none;
  background:linear-gradient(145deg,var(--brand-lt) 0%,var(--brand-deep) 100%);
  display:grid;place-items:center;color:#fff;font-size:.92rem;font-weight:800;letter-spacing:-.03em;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28);
}
.nav-links{display:flex;gap:24px;margin-left:auto;align-items:center}
.nav-links a{font-size:.93rem;font-weight:520;color:var(--ink-2);padding:6px 0;border-bottom:2px solid transparent;transition:.18s;white-space:nowrap}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--brand);border-bottom-color:var(--brand)}
.nav-cta{
  margin-left:8px;background:var(--brand);color:#fff !important;padding:11px 20px !important;
  border-radius:9px;font-weight:600;border-bottom:none !important;font-size:.9rem !important;
  transition:.18s;box-shadow:0 1px 2px rgba(15,59,135,.32);
}
.nav-cta:hover{background:var(--brand-deep);transform:translateY(-1px)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;padding:7px 10px;cursor:pointer}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:10px;
  font-weight:600;font-size:.95rem;transition:.18s;border:1.5px solid transparent;cursor:pointer;
  font-family:inherit;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 2px 10px rgba(15,59,135,.26)}
.btn--primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 6px 20px rgba(15,59,135,.3)}
.btn--ghost{border-color:rgba(195,204,216,.55);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn--outline{border-color:var(--line);color:var(--ink);background:#fff}
.btn--outline:hover{border-color:var(--brand);color:var(--brand)}
.btn--silver{background:var(--silver-lt);color:var(--brand-deep);border-color:var(--silver)}
.btn--silver:hover{background:var(--silver);}
.btn-row{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;background:var(--bg-deep);color:#fff;
  padding:96px 0 92px;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(1050px 520px at 76% -14%,rgba(42,99,201,.52),transparent 62%),
    radial-gradient(720px 420px at 6% 106%,rgba(195,204,216,.13),transparent 60%);
}
.hero::after{
  content:'';position:absolute;inset:0;opacity:.30;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 30%,#000 20%,transparent 78%);
}
.hero .wrap{position:relative;z-index:2}
.hero h1{color:#fff;max-width:20ch}
.hero .lede{color:#B6C6DA;font-size:1.16rem;max-width:56ch;margin-top:20px}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;font-size:.78rem;font-weight:600;
  letter-spacing:.09em;text-transform:uppercase;color:#A9C4F0;
  border:1px solid rgba(127,166,232,.34);background:rgba(127,166,232,.09);
  padding:7px 15px;border-radius:100px;margin-bottom:26px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:#8FB4F0;box-shadow:0 0 0 3px rgba(143,180,240,.22)}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:64px;
  border-top:1px solid rgba(195,204,216,.18);padding-top:34px;
}
.hero-stats div{padding-right:20px}
.hero-stats b{display:block;font-size:1.92rem;font-weight:700;color:#fff;letter-spacing:-.03em;line-height:1.1}
.hero-stats span{font-size:.78rem;color:#93A7BE;letter-spacing:.05em;text-transform:uppercase;font-weight:550}

/* ---------- trust strip ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line);padding:26px 0}
.trust-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.trust-label{font-size:.73rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
.trust-items{display:flex;gap:34px;flex-wrap:wrap;align-items:center}
.trust-item{display:flex;align-items:center;gap:9px;font-size:.87rem;font-weight:600;color:var(--ink-2)}
.trust-item svg{flex:none;color:var(--brand)}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:.2s;box-shadow:var(--shadow-sm);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#C6D3E4}
.card h3{margin-bottom:9px}
.card p{font-size:.93rem;color:var(--muted);margin:0}
.card-ico{
  width:44px;height:44px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-pale);color:var(--brand);margin-bottom:18px;
}
.card-ico svg{width:22px;height:22px}

/* product card w/ media */
.pcard{overflow:hidden;padding:0;display:flex;flex-direction:column}
.pcard-media{
  height:158px;background:linear-gradient(135deg,#EDF2F9,#D3DEEB);
  display:grid;place-items:center;color:var(--brand);position:relative;overflow:hidden;
}
.pcard-media::after{
  content:'';position:absolute;inset:0;opacity:.55;
  background-image:radial-gradient(circle at 72% 18%,rgba(255,255,255,.95),transparent 55%);
}
.pcard-media svg{width:50px;height:50px;position:relative;z-index:1;opacity:.82}
.pcard-body{padding:24px 24px 26px;flex:1;display:flex;flex-direction:column}
.pcard-body h3{font-size:1.06rem;margin-bottom:8px}
.pcard-body p{font-size:.9rem;color:var(--muted);margin:0 0 14px}
.spec{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto}
.spec span{
  font-size:.72rem;font-weight:600;color:var(--ink-2);background:var(--bg-soft);
  border:1px solid var(--line);border-radius:6px;padding:3px 9px;
}

/* ---------- product category (accordion-like blocks) ---------- */
.cat{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;margin-bottom:16px;box-shadow:var(--shadow-sm)}
.cat-head{display:flex;align-items:flex-start;gap:20px;padding:26px 28px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#FBFCFE,#F6F8FB)}
.cat-letter{
  flex:none;width:38px;height:38px;border-radius:9px;display:grid;place-items:center;
  background:var(--brand);color:#fff;font-weight:750;font-size:1rem;letter-spacing:-.02em;
}
.cat-head h3{margin:0 0 3px;font-size:1.12rem}
.cat-head span{font-size:.78rem;color:var(--muted);letter-spacing:.05em;text-transform:uppercase;font-weight:600}
.cat-body{padding:22px 28px 8px;display:flex;gap:36px;align-items:flex-start;flex-wrap:wrap}
.cat-body .cat-list{flex:1 1 340px;min-width:0}
.product-gallery{flex:0 0 300px;display:grid;grid-template-columns:repeat(auto-fit,minmax(132px,1fr));gap:14px;align-self:center}
.product-gallery img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px;border:1px solid var(--line);background:#F7F7F7;display:block}
.cat-group{margin-bottom:18px}
.cat-group:last-child{margin-bottom:14px}
.cat-group h4{font-size:.83rem;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin:0 0 8px;font-weight:700}
.item-list{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 26px;list-style:none;padding:0;margin:0}
.item-list li{display:flex;gap:9px;font-size:.93rem;color:var(--ink-2);align-items:baseline;margin:0}
.item-list li::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--silver);flex:none;margin-top:8px}
.item-list li em{color:var(--muted);font-style:normal;font-size:.85rem}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split-media{
  border-radius:var(--radius);overflow:hidden;background:linear-gradient(135deg,#EDF2F9,#CFDBEA);
  aspect-ratio:4/3;display:grid;place-items:center;color:var(--brand);box-shadow:var(--shadow);
  position:relative;
}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-media svg{width:64px;height:64px;opacity:.55}

/* checklist */
.check{list-style:none;padding:0;margin:26px 0 0}
.check li{display:flex;gap:12px;align-items:flex-start;margin:.85em 0;font-size:.95rem;color:var(--ink-2)}
.check svg{flex:none;margin-top:4px;color:var(--brand)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:52px;counter-reset:s}
.step{position:relative;padding:0 26px 0 0}
.step::before{
  counter-increment:s;content:counter(s);
  display:grid;place-items:center;width:42px;height:42px;border-radius:50%;
  background:var(--brand);color:#fff;font-weight:700;font-size:.95rem;margin-bottom:18px;
  box-shadow:0 0 0 6px var(--brand-pale);
}
.step::after{
  content:'';position:absolute;top:21px;left:56px;right:12px;height:2px;
  background:linear-gradient(90deg,#D7E2F2,var(--line));z-index:-1;
}
.step:last-child::after{display:none}
.step h3{font-size:1rem;margin-bottom:7px}
.step p{font-size:.88rem;color:var(--muted);margin:0}

/* ---------- table ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:.92rem;margin-top:26px}
.tbl th,.tbl td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line)}
.tbl th{font-size:.76rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);font-weight:700;background:var(--bg-soft)}
.tbl td{color:var(--ink-2)}
.tbl tr:last-child td{border-bottom:none}

/* ---------- faq ---------- */
.faq{max-width:820px;margin:40px auto 0}
.faq details{border-bottom:1px solid var(--line);padding:20px 0}
.faq summary{
  cursor:pointer;font-weight:600;font-size:1rem;list-style:none;display:flex;
  justify-content:space-between;gap:20px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';font-size:1.4rem;color:var(--brand);font-weight:400;line-height:1}
.faq details[open] summary::after{content:'–'}
.faq details p{margin:14px 0 0;font-size:.93rem;color:var(--muted)}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(118deg,#123F92 0%,#0D3070 52%,#08214D 100%);
  border-radius:18px;padding:58px 54px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
  box-shadow:0 20px 50px rgba(8,33,77,.26);position:relative;overflow:hidden;
}
.cta-band::after{
  content:'';position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(195,204,216,.18),transparent 68%);
}
.cta-band h2{color:#fff;margin-bottom:8px;font-size:clamp(1.5rem,2.6vw,2rem)}
.cta-band p{color:#BECDE2;margin:0;max-width:52ch;font-size:.98rem}
.cta-band .btn{position:relative;z-index:1;flex:none}

/* ---------- footer ---------- */
.site-footer{background:#04101F;color:#8FA3BD;padding:64px 0 30px;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}
.site-footer h4{color:#fff;font-size:.8rem;letter-spacing:.11em;text-transform:uppercase;margin-bottom:18px}
.site-footer a{color:#8FA3BD;transition:.16s}
.site-footer a:hover{color:#8FB4F0}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:.6em 0}
.footer-logo{height:60px;width:auto;background:#fff;border-radius:12px;padding:9px 12px;display:block;box-shadow:0 2px 10px rgba(0,0,0,.25)}
.footer-desc{max-width:34ch;line-height:1.7;margin-top:16px;font-size:.87rem}
.footer-bottom{
  border-top:1px solid rgba(195,204,216,.13);margin-top:48px;padding-top:24px;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.82rem;color:#6B7F97;
}

/* ---------- forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
label{font-size:.83rem;font-weight:600;color:var(--ink-2)}
label .req{color:#C0392B}
input,select,textarea{
  font-family:inherit;font-size:.94rem;padding:12px 14px;border:1px solid var(--line);
  border-radius:9px;background:#fff;color:var(--ink);transition:.16s;width:100%;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,59,135,.11)}
textarea{resize:vertical;min-height:120px}
.hint{font-size:.79rem;color:var(--muted)}

/* ---------- contact info ---------- */
.info-list{list-style:none;padding:0;margin:0}
.info-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.info-list svg{flex:none;color:var(--brand);margin-top:3px}
.info-list b{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);font-weight:700;margin-bottom:3px}
.info-list span,.info-list a{font-size:.95rem;color:var(--ink)}
.social-row{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.social-btn{
  display:inline-flex;align-items:center;gap:9px;padding:10px 16px;border-radius:9px;
  border:1px solid var(--line);background:#fff;font-size:.86rem;font-weight:600;color:var(--ink-2);
  transition:.16s;
}
.social-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.social-btn svg{width:16px;height:16px}

/* ---------- page hero (inner pages) ---------- */
.page-hero{
  background:var(--bg-deep);color:#fff;padding:74px 0 68px;position:relative;overflow:hidden;
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(880px 420px at 84% -22%,rgba(42,99,201,.44),transparent 64%);
}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-size:clamp(1.9rem,3.6vw,2.9rem);color:#fff;max-width:22ch}
.page-hero p{color:#A6B8CE;max-width:58ch;margin-top:14px;font-size:1.05rem}
.crumb{font-size:.8rem;color:#7E93AB;margin-bottom:18px;letter-spacing:.04em}
.crumb a:hover{color:#8FB4F0}

/* ---------- misc ---------- */
.note{
  background:var(--brand-pale);border-left:3px solid var(--brand);
  padding:16px 20px;border-radius:0 9px 9px 0;font-size:.9rem;color:var(--ink-2);margin:24px 0;
}
.badge{
  display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  background:var(--brand-pale);color:var(--brand);padding:5px 11px;border-radius:100px;
}
.divider{height:1px;background:var(--line);margin:56px 0}

/* ---------- logo picker (internal preview only) ---------- */
.logo-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.logo-opt{border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;text-align:center;background:#fff;transition:.18s}
.logo-opt:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.logo-opt img{height:60px;margin:0 auto 14px}
.logo-opt b{display:block;font-size:.86rem;color:var(--ink)}
.logo-opt span{font-size:.78rem;color:var(--muted)}

/* ---------- vlog cards ---------- */
.vlog-card{overflow:hidden;padding:0}
.vlog-thumb{
  aspect-ratio:16/9;background:linear-gradient(135deg,#E7EEF8,#C8D7EA);
  display:grid;place-items:center;color:var(--brand);position:relative;
}
.vlog-thumb svg{width:38px;height:38px;opacity:.65}
.vlog-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.vlog-thumb .play{
  position:absolute;width:52px;height:52px;border-radius:50%;background:rgba(15,59,135,.9);
  display:grid;place-items:center;color:#fff;box-shadow:0 6px 18px rgba(9,37,88,.3);
}
.vlog-body{padding:20px 22px 24px}
.vlog-body h3{font-size:1rem;margin-bottom:6px}
.vlog-body p{font-size:.86rem;color:var(--muted);margin:0}

/* ---------- responsive ---------- */
@media(max-width:1040px){
  .nav-links{gap:18px}
  .nav-links a{font-size:.88rem}
}
@media(max-width:1000px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .steps{grid-template-columns:repeat(2,1fr);gap:34px}
  .step::after{display:none}
  .split{gap:40px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:26px}
  .item-list{grid-template-columns:1fr}
  .logo-picker{grid-template-columns:1fr}
}
@media(max-width:820px){
  .nav{height:110px}
  .brand img{height:80px}
  .nav-links{
    display:none;position:absolute;top:110px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:12px 24px 22px;border-bottom:1px solid var(--line);
    box-shadow:0 12px 28px rgba(10,26,51,.11);align-items:stretch;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 0;border-bottom:1px solid var(--line);font-size:.95rem}
  .nav-links a.nav-cta{margin:14px 0 0;text-align:center;justify-content:center}
  .burger{display:block}
}
@media(max-width:760px){
  .section{padding:60px 0}
  .grid-3,.grid-2,.grid-4{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .cta-band{padding:38px 28px}
  .cta-band .btn{width:100%;justify-content:center}
  .hero{padding:64px 0 58px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:22px;margin-top:44px}
  .footer-grid{grid-template-columns:1fr}
  .trust-items{gap:18px}
  .cat-head{padding:20px}
  .cat-body{padding:18px 20px 4px}
}