/* ===================================================
   NexaCertify — design tokens
   Concept: official document / wax-seal certification
=================================================== */
:root{
  --ink:        #10263A;   /* primary navy — headers, hero bg */
  --ink-2:      #16324A;   /* lighter navy for gradients */
  --brass:      #B4863A;   /* seal / accent / CTA */
  --brass-dark: #8F6A2C;
  --paper:      #F5F1E6;   /* warm paper background */
  --paper-2:    #FFFFFF;
  --verified:   #2F6F4E;   /* success / verified green */
  --charcoal:   #1B1E21;
  --slate:      #5B6670;
  --line:       #E3DCC8;

  --font-display: 'Fraunces', serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 14px;
  --shadow-sm: 0 2px 10px rgba(16,38,58,0.08);
  --shadow-md: 0 12px 32px rgba(16,38,58,0.14);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: 84px; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
h1,h2,h3{ font-family: var(--font-display); color: var(--ink); margin:0 0 .4em; line-height:1.15; }
p{ margin:0 0 1em; color: var(--slate); line-height:1.65; }

.section-inner{ max-width: 1180px; margin: 0 auto; padding: 88px 24px; }
.eyebrow{
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--brass-dark);
  margin: 0 0 .9em;
}
.eyebrow--center{ text-align:center; }
.section-title{ font-size: clamp(1.7rem, 2.6vw, 2.4rem); }
.section-title--center{ text-align:center; max-width: 640px; margin-left:auto; margin-right:auto; }
.section-sub{ text-align:center; max-width: 560px; margin: -12px auto 48px; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding: 12px 24px; border-radius: 999px; font-weight:600; font-size:.95rem;
  border: 1.5px solid transparent; cursor:pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{ background: var(--brass); color:#fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover{ background: var(--brass-dark); }
.btn-outline{ border-color: var(--ink); color: var(--ink); }
.btn-outline:hover{ background: var(--ink); color:#fff; }
.btn-ghost{ color: var(--ink); font-family: var(--font-mono); font-size:.85rem; padding: 10px 14px;}
.btn-ghost:hover{ color: var(--brass-dark); }
.btn-solid{ background: var(--ink); color:#fff; }
.btn-solid:hover{ background: var(--ink-2); }

/* ---------- header ---------- */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(245,241,230,0.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  max-width:1180px; margin:0 auto; padding: 14px 24px;
  display:flex; align-items:center; gap: 28px; position: relative;
}
.logo{ display:flex; align-items:center; margin-right:auto; }
.logo-img{ height:34px; width:auto; display:block; }
.logo--footer .logo-img{ height:30px; }
.main-nav{ display:flex; gap: 26px; font-weight:500; font-size:.95rem; }
.main-nav a:hover{ color: var(--brass-dark); }
.header-actions{ display:flex; align-items:center; gap:10px; }
.nav-toggle{ display:none; flex-direction:column; gap:4px; background:none; border:none; cursor:pointer; padding:6px; }
.nav-toggle span{ width:22px; height:2px; background: var(--ink); }

/* ---------- hero ---------- */
.hero{ background: linear-gradient(160deg, var(--ink) 0%, var(--ink-2) 55%, #123047 100%); color:#fff; overflow:hidden; }
.hero-inner{
  max-width:1180px; margin:0 auto; padding: 90px 24px 70px;
  display:grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items:center;
}
.hero .eyebrow{ color: #E7C784; }
.hero h1{ color:#fff; font-size: clamp(2rem, 4vw, 3rem); }
.hl{ color: #E7C784; }
.hero-sub{ color: #C9D3DC; max-width: 480px; }
.hero-cta{ display:flex; gap:14px; margin: 28px 0 34px; flex-wrap:wrap; }
.hero-cta .btn-outline{ border-color: rgba(255,255,255,.5); color:#fff; }
.hero-cta .btn-outline:hover{ background:#fff; color: var(--ink); }
.hero-trust{ list-style:none; display:flex; gap: 28px; padding:0; margin:0; font-family: var(--font-mono); font-size:.82rem; color:#B7C3CD; flex-wrap:wrap; }
.hero-trust strong{ display:block; color:#fff; font-size:1.15rem; font-family: var(--font-display); }

.hero-visual{ display:flex; justify-content:center; }
.cert-card{
  background: var(--paper-2); color: var(--charcoal); border-radius: var(--radius);
  width: 320px; box-shadow: var(--shadow-md); overflow:hidden;
  transform: rotate(3deg); border: 6px solid #fff;
}
.cert-card-video{
  position:relative; width:100%; aspect-ratio: 16 / 9; overflow:hidden; background:#0B1B29;
}
.cert-card-video video{ width:100%; height:100%; object-fit:cover; display:block; }
.cert-card-video-tag{
  position:absolute; left:14px; bottom:14px; background: rgba(11,27,41,.72); color:#fff;
  font-family: var(--font-mono); font-size:.68rem; text-transform:uppercase; letter-spacing:.06em;
  padding:6px 10px; border-radius:999px; backdrop-filter: blur(2px);
}
.cert-card-body{ padding: 20px 22px 26px; display:flex; flex-direction:column; gap:2px; }
.cert-label{ font-family: var(--font-mono); font-size:.68rem; text-transform:uppercase; letter-spacing:.08em; color: var(--slate); margin-top:14px; }
.cert-value{ font-family: var(--font-display); font-size:1.15rem; color: var(--ink); font-weight:600; }
.cert-value--muted{ color: var(--slate); font-style:italic; font-family: var(--font-body); font-weight:400; font-size:1rem;}
.cert-mono{ font-family: var(--font-mono); font-size:.95rem; }

/* ---------- about ---------- */
.about-inner{ display:grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items:center; }
.about-media img{ border-radius: var(--radius); box-shadow: var(--shadow-md); }
.check-list{ list-style:none; padding:0; margin: 22px 0 0; display:flex; flex-direction:column; gap:10px; }
.check-list li{ padding-left: 28px; position:relative; color: var(--charcoal); font-weight:500; }
.check-list li::before{ content:"✓"; position:absolute; left:0; color: var(--verified); font-weight:700; }

/* ---------- why us ---------- */
.why-us{ background: var(--paper-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.feature-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 48px; }
.feature-card{ background: var(--paper); border-radius: var(--radius); padding: 30px 26px; border: 1px solid var(--line); transition: transform .2s ease, box-shadow .2s ease; }
.feature-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.feature-icon{ font-size:1.6rem; width:52px; height:52px; display:flex; align-items:center; justify-content:center; background:#fff; border-radius:50%; border:1px solid var(--line); margin-bottom:16px; }
.feature-card h3{ font-size:1.1rem; margin-bottom:.35em; }
.feature-card p{ margin:0; font-size:.92rem; }

/* ---------- services / cert grid ---------- */
.cert-grid{ display:grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 22px; }
.cert-item{
  background: var(--paper-2); border:1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; display:flex; flex-direction:column; gap:10px; position:relative;
  transition: transform .2s ease, box-shadow .2s ease;
}
.cert-item:hover{ transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.cert-item-top{ display:flex; justify-content:space-between; align-items:flex-start; }
.cert-badge{
  width:56px; height:56px; flex-shrink:0; border-radius: 12px;
  background: #fff; border: 1px solid var(--line);
  display:flex; align-items:center; justify-content:center; padding:8px;
}
.cert-badge img{ width:100%; height:100%; object-fit:contain; }
.cert-badge-text{
  font-family: var(--font-mono); font-size:.72rem; font-weight:700; letter-spacing:.03em;
  color: var(--brass-dark); border: 1.5px dashed var(--brass); border-radius:50%;
  width:100%; height:100%; display:flex; align-items:center; justify-content:center;
}
.cert-price{ font-family: var(--font-mono); font-weight:600; color: var(--ink); font-size:.95rem; background: #F0E9D2; padding:4px 10px; border-radius: 999px; }
.cert-item h3{ font-size:1.05rem; margin: 4px 0 0; }
.cert-item p{ font-size:.85rem; margin:0; flex-grow:1; }
.cert-item .btn{ margin-top: 8px; padding: 10px 18px; font-size:.85rem; align-self:flex-start; }

/* ---------- process ---------- */
.process-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 26px; margin-top: 48px; }
.process-step{ text-align:center; padding: 10px; }
.step-index{ font-family: var(--font-mono); color: var(--brass); font-size:1.6rem; font-weight:700; display:block; margin-bottom:10px; }
.process-step h3{ font-size:1.05rem; }
.process-step p{ font-size:.9rem; }

.docs-required{ margin-top: 70px; text-align:center; }
.docs-required h3{ font-size:1.2rem; margin-bottom: 20px; }
.docs-grid{ display:flex; gap:16px; flex-wrap:wrap; justify-content:center; }
.docs-grid span{ background:#fff; border:1px solid var(--line); border-radius: 10px; padding: 14px 20px; font-weight:500; font-size:.9rem; color: var(--ink); }

/* ---------- quote / callback ---------- */
.quote{ background: linear-gradient(135deg, var(--brass) 0%, var(--brass-dark) 100%); color:#fff; }
.quote-inner{ text-align:center; padding: 70px 24px; }
.quote-inner h2{ color:#fff; font-size: clamp(1.4rem, 2.6vw, 2rem); max-width:700px; margin: 0 auto 34px; }
.quote-inner h2 span{ display:block; color:#2A1B05; opacity:.75; font-size:.7em; margin-top:6px; }
.quote-form{ display:flex; gap:12px; flex-wrap:wrap; justify-content:center; max-width: 960px; margin: 0 auto; }
.quote-form input{
  flex:1 1 190px; padding: 14px 16px; border-radius: 10px; border: 1.5px solid rgba(255,255,255,.5);
  background: rgba(255,255,255,.12); color:#fff; font-family: var(--font-body); font-size:.95rem;
}
.quote-form input::placeholder{ color: rgba(255,255,255,.75); }
.quote-form input:focus{ outline: 2px solid #fff; background: rgba(255,255,255,.2); }
.quote-form .btn{ flex: 0 0 auto; background:#fff; color: var(--brass-dark); }
.quote-form .btn:hover{ background: var(--ink); color:#fff; }
.form-note{ margin-top:18px; color:#fff; font-weight:600; }

/* ---------- footer ---------- */
.site-footer{ background: var(--ink); color: #C9D3DC; }
.footer-inner{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-top:70px; padding-bottom: 40px; }
.logo--footer{ color:#fff; margin-bottom:14px; }
.footer-col h4{ color:#fff; font-family: var(--font-mono); font-size:.8rem; text-transform:uppercase; letter-spacing:.08em; margin-bottom:16px; }
.footer-col a, .footer-col p{ display:block; margin-bottom:10px; font-size:.9rem; }
.footer-col a:hover{ color:#fff; }
.social-row{ display:flex; gap:10px; }
.social-row a{ width:36px; height:36px; border-radius:50%; border:1px solid rgba(255,255,255,.25); display:flex; align-items:center; justify-content:center; }
.social-row a:hover{ background:#fff; color: var(--ink); }
.footer-bottom{ text-align:center; padding: 20px; border-top: 1px solid rgba(255,255,255,.1); font-size:.82rem; }

/* ---------- whatsapp float ---------- */
.whatsapp-float{
  position: fixed; bottom: 24px; right: 24px; width: 56px; height:56px; border-radius:50%;
  background:#25D366; color:#fff; display:flex; align-items:center; justify-content:center;
  box-shadow: 0 8px 20px rgba(37,211,102,.4); z-index: 90;
}
.whatsapp-float svg{ width:28px; height:28px; }

/* ---------- responsive ---------- */
@media (max-width: 900px){
  .main-nav{
    display:none; position:absolute; top:100%; left:0; right:0;
    background: var(--paper-2); border-bottom: 1px solid var(--line);
    flex-direction:column; padding: 12px 24px; gap: 4px;
  }
  .main-nav a{ padding: 12px 0; border-bottom: 1px solid var(--line); }
  .main-nav.nav-open{ display:flex; }
  .header-actions{ display:none; }
  .nav-toggle{ display:flex; }
  .hero-inner, .about-inner{ grid-template-columns: 1fr; }
  .hero-visual{ order:-1; }
  .cert-card{ transform: rotate(0); margin: 0 auto; }
  .feature-grid{ grid-template-columns: repeat(2,1fr); }
  .process-grid{ grid-template-columns: repeat(2,1fr); }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px){
  .feature-grid, .process-grid{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr; }
  .section-inner{ padding: 60px 20px; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .seal{ animation: none; }
  .btn, .feature-card, .cert-item{ transition:none; }
}

/* ---------- FAQ ---------- */
.faq-list{ max-width: 760px; margin: 40px auto 0; display:flex; flex-direction:column; gap:12px; }
.faq-item{ background: var(--paper-2); border:1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; }
.faq-item summary{ cursor:pointer; font-weight:600; color: var(--ink); font-size:1rem; list-style:none; display:flex; justify-content:space-between; align-items:center; }
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:"+"; color: var(--brass); font-size:1.3rem; margin-left:12px; }
.faq-item[open] summary::after{ content:"–"; }
.faq-item p{ margin: 12px 0 0; font-size:.92rem; color: var(--ink-2); }

/* visible keyboard focus */
a:focus-visible, button:focus-visible, input:focus-visible{
  outline: 3px solid var(--brass); outline-offset: 2px;
}