/* =========================================================
   SellingDNA — Design System
   Deep Navy + Royal Blue + Teal, on white/light-gray.
   Poppins for display, Inter for body.
   ========================================================= */

:root{
  --navy:        #0A1F44;
  --navy-2:      #0F2A5C;
  --royal:       #2049E0;
  --royal-dark:  #17359E;
  --teal:        #12B8A6;
  --bg:          #FFFFFF;
  --bg-soft:     #F5F8FC;
  --bg-navy-soft:#0D234B;
  --ink:         #1B2233;
  --ink-soft:    #4B5568;
  --line:        #E4E9F2;
  --white:       #FFFFFF;

  --font-head: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --container: 1180px;
  --radius: 10px;
  --radius-sm: 6px;

  --shadow-sm: 0 1px 2px rgba(10,31,68,0.06);
  --shadow-md: 0 8px 24px rgba(10,31,68,0.08);
  --shadow-lg: 0 20px 48px rgba(10,31,68,0.14);

  --ease: cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{
  font-family:var(--font-head);
  color:var(--navy);
  font-weight:600;
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
h1{ font-weight:700; }
p{ margin:0 0 1em; color:var(--ink-soft); }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; }

.container{ max-width:var(--container); margin:0 auto; padding:0 24px; }
.section{ padding:96px 0; }
.section-tight{ padding:64px 0; }
@media (max-width:768px){
  .section{ padding:64px 0; }
  .section-tight{ padding:44px 0; }
}

.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-head); font-weight:600;
  font-size:.72rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--royal); margin-bottom:14px;
}
.eyebrow::before{ content:""; width:20px; height:2px; background:var(--teal); display:inline-block; }

.section-head{ max-width:680px; margin-bottom:52px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2{ font-size:clamp(1.7rem,3vw,2.4rem); }
.section-head p{ font-size:1.05rem; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--font-head); font-weight:600; font-size:.92rem;
  padding:14px 26px; border-radius:var(--radius-sm);
  border:1px solid transparent; cursor:pointer;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{ background:var(--royal); color:#fff; box-shadow:0 6px 18px rgba(32,73,224,.28); }
.btn-primary:hover{ background:var(--royal-dark); transform:translateY(-2px); box-shadow:0 10px 24px rgba(32,73,224,.34); }
.btn-outline{ background:transparent; color:var(--navy); border-color:var(--line); }
.btn-outline:hover{ border-color:var(--navy); transform:translateY(-2px); }
.btn-ghost-light{ background:transparent; color:#fff; border-color:rgba(255,255,255,.35); }
.btn-ghost-light:hover{ border-color:#fff; background:rgba(255,255,255,.08); transform:translateY(-2px); }
.btn-sm{ padding:10px 18px; font-size:.85rem; }
.btn-block{ width:100%; }
.cta-row{ display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:200; background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px); border-bottom:1px solid var(--line);
}
.nav-wrap{ display:flex; align-items:center; justify-content:space-between; height:78px; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-head); font-weight:700; font-size:1.18rem; color:var(--navy); }
.brand .helix{ width:30px; height:30px; flex:none; }
.brand .brand-sub{ display:block; font-family:var(--font-body); font-weight:500; font-size:.62rem; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-soft); margin-top:1px; }

.main-nav{ display:flex; align-items:center; gap:2px; }
.main-nav a{
  font-size:.88rem; font-weight:600; color:var(--ink); padding:10px 14px; border-radius:999px;
  position:relative; transition:color .2s, background .2s;
}
.main-nav a:hover, .main-nav a.active{ color:var(--royal); background:rgba(32,73,224,.07); }

.header-actions{ display:flex; align-items:center; gap:14px; }
.hamburger{ display:none; background:none; border:none; cursor:pointer; padding:6px; }
.hamburger span{ display:block; width:24px; height:2px; background:var(--navy); margin:5px 0; transition:.25s; }

@media (max-width:1080px){
  .main-nav{
    position:fixed; inset:78px 0 0 0; background:#fff; flex-direction:column; align-items:stretch;
    padding:16px; gap:4px; transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:.25s var(--ease); overflow:auto;
  }
  .main-nav.open{ transform:translateY(0); opacity:1; pointer-events:auto; }
  .main-nav a{ padding:14px 12px; border-bottom:1px solid var(--line); border-radius:0; }
  .hamburger{ display:block; }
  .header-actions .btn-primary{ display:none; }
  .main-nav .mobile-cta{ display:block; margin-top:10px; }
}
@media (min-width:1081px){
  .main-nav .mobile-cta{ display:none; }
}

/* ---------- Hero ---------- */
.hero{
  position:relative; overflow:hidden;
  background:linear-gradient(180deg,var(--navy) 0%, var(--bg-navy-soft) 100%);
  color:#fff; padding:110px 0 130px;
}
.hero .container{ position:relative; z-index:2; display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:center; }
.hero h1{ color:#fff; font-size:clamp(2.2rem,4.4vw,3.4rem); letter-spacing:-0.02em; }
.hero .lede{ color:rgba(255,255,255,.78); font-size:1.12rem; max-width:520px; }
.hero-eyebrow{ color:var(--teal); }
.hero-eyebrow::before{ background:var(--teal); }
.hero-badges{ display:flex; gap:26px; margin-top:44px; flex-wrap:wrap; }
.hero-badge b{ display:block; font-family:var(--font-head); font-size:1.5rem; color:#fff; }
.hero-badge span{ font-size:.78rem; color:rgba(255,255,255,.6); }

.helix-stage{ position:relative; height:420px; }
@media (max-width:980px){
  .hero .container{ grid-template-columns:1fr; }
  .helix-stage{ height:280px; order:-1; }
}

/* animated helix background wash */
.hero::before{
  content:""; position:absolute; inset:0; z-index:1; opacity:.5;
  background:
    radial-gradient(600px 300px at 85% 10%, rgba(18,184,166,.18), transparent 60%),
    radial-gradient(500px 260px at 10% 90%, rgba(32,73,224,.28), transparent 60%);
}

/* ---------- Helix SVG shared styling ---------- */
.dna-line{ fill:none; stroke-width:2; }
.dna-node{ fill:var(--white); stroke-width:2; }
.dna-node-fill{ }

/* ---------- Challenge cards ---------- */
.grid{ display:grid; gap:24px; }
.grid-4{ grid-template-columns:repeat(4,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-2{ grid-template-columns:repeat(2,1fr); }
@media (max-width:980px){ .grid-4{ grid-template-columns:repeat(2,1fr); } .grid-3{ grid-template-columns:repeat(2,1fr);} }
@media (max-width:640px){ .grid-4,.grid-3,.grid-2{ grid-template-columns:1fr; } }

.card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:28px; transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:transparent; }

.problem-card{ background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--radius); padding:24px; display:flex; gap:14px; align-items:flex-start; }
.problem-card .dot{ width:8px; height:8px; border-radius:50%; background:var(--teal); margin-top:8px; flex:none; }
.problem-card p{ margin:0; color:var(--ink); font-weight:500; font-size:.96rem; }

.section-alt{ background:var(--bg-soft); }
.section-navy{ background:var(--navy); color:#fff; }
.section-navy h2, .section-navy h3{ color:#fff; }
.section-navy p{ color:rgba(255,255,255,.72); }

/* ---------- Methodology ---------- */
.method-track{ position:relative; }
.method-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; position:relative; z-index:2; }
@media (max-width:980px){ .method-grid{ grid-template-columns:repeat(2,1fr);} }
@media (max-width:560px){ .method-grid{ grid-template-columns:1fr;} }

.method-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:30px 26px; position:relative; overflow:hidden;
}
.method-card .num{ font-family:var(--font-head); font-weight:700; font-size:.78rem; letter-spacing:.1em; color:var(--teal); }
.method-card h3{ margin:10px 0 10px; font-size:1.18rem; }
.method-card p{ font-size:.92rem; margin-bottom:14px; }
.method-card .tags{ display:flex; flex-wrap:wrap; gap:6px; }
.method-card .tags span{ font-size:.72rem; font-weight:600; color:var(--royal); background:rgba(32,73,224,.08); padding:4px 9px; border-radius:999px; }
.method-card::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:3px;
  background:linear-gradient(90deg,var(--royal),var(--teal)); transform:scaleX(0); transform-origin:left;
  transition:transform .4s var(--ease);
}
.method-card:hover::after{ transform:scaleX(1); }
.method-card:hover{ box-shadow:var(--shadow-md); transform:translateY(-3px); transition:transform .3s var(--ease), box-shadow .3s var(--ease); }

/* ---------- Services accordion / grid ---------- */
.service-block{ border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:#fff; }
.service-block + .service-block{ margin-top:16px; }
.service-block summary{
  list-style:none; cursor:pointer; display:flex; align-items:center; justify-content:space-between;
  padding:24px 28px; font-family:var(--font-head); font-weight:600; color:var(--navy); font-size:1.05rem;
}
.service-block summary::-webkit-details-marker{ display:none; }
.service-block summary .plus{ width:26px; height:26px; border-radius:50%; border:1px solid var(--line); position:relative; flex:none; transition:transform .3s; }
.service-block summary .plus::before, .service-block summary .plus::after{ content:""; position:absolute; background:var(--royal); top:50%; left:50%; transform:translate(-50%,-50%); }
.service-block summary .plus::before{ width:10px; height:2px; }
.service-block summary .plus::after{ width:2px; height:10px; }
.service-block[open] summary .plus{ transform:rotate(45deg); }
.service-block .service-body{ padding:0 28px 26px; }
.service-block .service-body p{ font-size:.92rem; }
.chip-row{ display:flex; flex-wrap:wrap; gap:10px; }
.chip{ font-size:.84rem; font-weight:500; color:var(--ink); background:var(--bg-soft); border:1px solid var(--line); padding:8px 14px; border-radius:999px; }

/* ---------- Solutions / stage tabs ---------- */
.stage-card{
  border:1px solid var(--line); border-radius:var(--radius); padding:30px; background:#fff; height:100%;
  display:flex; flex-direction:column;
}
.stage-card .stage-icon{ width:44px; height:44px; border-radius:10px; background:linear-gradient(135deg,var(--royal),var(--teal)); margin-bottom:18px; }
.stage-card h3{ font-size:1.15rem; }
.stage-card .stage-goal{ color:var(--royal); font-weight:600; font-size:.86rem; margin-bottom:14px; }
.stage-card ul{ margin-top:auto; padding-top:10px; border-top:1px solid var(--line); }
.stage-card li{ font-size:.88rem; color:var(--ink-soft); padding:6px 0; display:flex; gap:8px; }
.stage-card li::before{ content:"→"; color:var(--teal); font-weight:700; }

/* ---------- Team ---------- */
.team-card{ border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:#fff; }
.team-photo{ height:200px; background:linear-gradient(135deg,var(--navy),var(--royal)); position:relative; display:flex; align-items:center; justify-content:center; }
.team-photo span{ font-family:var(--font-head); color:rgba(255,255,255,.85); font-size:.78rem; letter-spacing:.08em; text-transform:uppercase; }
.team-body{ padding:22px; }
.team-body h3{ font-size:1.05rem; margin-bottom:2px; }
.team-role{ color:var(--royal); font-weight:600; font-size:.85rem; margin-bottom:10px; }
.team-exp{ font-size:.78rem; color:var(--ink-soft); font-weight:600; text-transform:uppercase; letter-spacing:.05em; margin-bottom:10px; }
.team-body p.bio{ font-size:.88rem; }

/* ---------- Stats ---------- */
.stats-strip{ display:flex; flex-wrap:wrap; gap:0; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:#fff; }
.stat{ flex:1 1 200px; padding:30px 24px; border-right:1px solid var(--line); }
.stat:last-child{ border-right:none; }
.stat .stat-num{ font-family:var(--font-head); font-weight:700; font-size:2.1rem; color:var(--navy); }
.stat .stat-label{ font-size:.84rem; color:var(--ink-soft); }
.stat .stat-num .placeholder-tag{ font-size:.9rem; }

/* ---------- Placeholder tag ---------- */
.placeholder-tag{
  display:inline-block; font-size:.68rem; font-weight:700; letter-spacing:.05em;
  color:var(--royal); background:rgba(32,73,224,.09); padding:2px 8px; border-radius:5px; vertical-align:middle;
}

/* ---------- Industries ---------- */
.industry-card{ border:1px solid var(--line); border-radius:var(--radius); padding:28px; background:#fff; }
.industry-card h3{ font-size:1.1rem; }
.industry-card .ind-label{ font-size:.72rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--teal); margin-bottom:8px; display:block; }
.industry-card ul{ margin-top:12px; }
.industry-card li{ font-size:.86rem; color:var(--ink-soft); padding:4px 0; padding-left:16px; position:relative; }
.industry-card li::before{ content:"•"; color:var(--royal); position:absolute; left:0; }

/* ---------- Case studies ---------- */
.flow-strip{ display:flex; align-items:center; flex-wrap:wrap; gap:10px; margin:18px 0 26px; }
.flow-step{ font-family:var(--font-head); font-weight:600; font-size:.82rem; color:var(--navy); background:var(--bg-soft); border:1px solid var(--line); padding:8px 14px; border-radius:999px; }
.flow-arrow{ color:var(--teal); font-weight:700; }
.case-card{ border:1px solid var(--line); border-radius:var(--radius); padding:32px; background:#fff; }
.case-tag{ font-size:.72rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--royal); }
.case-card h3{ margin:10px 0 16px; font-size:1.25rem; }

/* ---------- Insights ---------- */
.insight-card{ border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:#fff; }
.insight-thumb{ height:150px; background:linear-gradient(135deg,var(--bg-navy-soft),var(--royal)); position:relative; }
.insight-thumb::after{ content:""; position:absolute; inset:0; background-image:repeating-linear-gradient(120deg, rgba(255,255,255,.06) 0 2px, transparent 2px 26px); }
.insight-cat{ position:absolute; top:14px; left:14px; background:rgba(255,255,255,.14); color:#fff; font-size:.68rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase; padding:5px 10px; border-radius:999px; backdrop-filter:blur(4px); }
.insight-body{ padding:22px; }
.insight-body h3{ font-size:1.02rem; margin-bottom:8px; }
.insight-meta{ font-size:.76rem; color:var(--ink-soft); margin-top:10px; }
.filter-row{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:40px; }
.filter-pill{ font-size:.82rem; font-weight:600; padding:9px 16px; border-radius:999px; border:1px solid var(--line); color:var(--ink-soft); cursor:pointer; }
.filter-pill.active, .filter-pill:hover{ border-color:var(--royal); color:var(--royal); background:rgba(32,73,224,.06); }

/* ---------- Resources ---------- */
.resource-card{ border:1px solid var(--line); border-radius:var(--radius); padding:26px; background:#fff; display:flex; flex-direction:column; height:100%; }
.resource-icon{ width:42px; height:42px; border-radius:9px; background:var(--bg-soft); display:flex; align-items:center; justify-content:center; margin-bottom:16px; }

/* ---------- Health check band ---------- */
.health-band{
  border-radius:16px; padding:56px; background:linear-gradient(120deg,var(--navy),var(--royal-dark) 60%, var(--navy));
  color:#fff; position:relative; overflow:hidden;
}
.health-band .container-inner{ position:relative; z-index:2; max-width:640px; }
.health-band h2{ color:#fff; }
.health-band p{ color:rgba(255,255,255,.75); }

/* ---------- Forms ---------- */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media (max-width:640px){ .form-grid{ grid-template-columns:1fr; } }
.field{ display:flex; flex-direction:column; gap:6px; }
.field.full{ grid-column:1/-1; }
.field label{ font-size:.82rem; font-weight:600; color:var(--navy); }
.field input, .field select, .field textarea{
  border:1px solid var(--line); border-radius:var(--radius-sm); padding:12px 14px; font-family:inherit; font-size:.94rem;
  background:#fff; color:var(--ink); transition:border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--royal); box-shadow:0 0 0 3px rgba(32,73,224,.15);
}
.field textarea{ resize:vertical; min-height:110px; }

.contact-info-card{ background:var(--navy); color:#fff; border-radius:var(--radius); padding:34px; }
.contact-info-card h3{ color:#fff; }
.contact-info-card p{ color:rgba(255,255,255,.7); }
.contact-info-item{ display:flex; gap:12px; padding:14px 0; border-top:1px solid rgba(255,255,255,.12); }
.contact-info-item:first-of-type{ border-top:none; }
.contact-info-item b{ display:block; font-size:.82rem; color:rgba(255,255,255,.55); font-weight:600; text-transform:uppercase; letter-spacing:.05em; margin-bottom:2px; }

/* ---------- Final CTA ---------- */
.final-cta{ text-align:center; }
.final-cta h2{ font-size:clamp(1.6rem,3.4vw,2.3rem); }
.final-cta .cta-row{ justify-content:center; margin-top:26px; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy); color:rgba(255,255,255,.7); padding:72px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr 1fr; gap:32px; padding-bottom:48px; border-bottom:1px solid rgba(255,255,255,.12); }
@media (max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }
.footer-grid h4{ color:#fff; font-size:.82rem; letter-spacing:.06em; text-transform:uppercase; margin-bottom:16px; }
.footer-grid a{ display:block; padding:6px 0; font-size:.9rem; color:rgba(255,255,255,.65); transition:color .2s; }
.footer-grid a:hover{ color:var(--teal); }
.footer-brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-head); font-weight:700; color:#fff; font-size:1.1rem; margin-bottom:14px; }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; padding-top:24px; font-size:.8rem; }
.footer-legal a{ color:rgba(255,255,255,.55); margin-left:18px; }

/* ---------- Breadcrumb / page header ---------- */
.page-header{ background:linear-gradient(180deg,var(--navy),var(--bg-navy-soft)); color:#fff; padding:70px 0 60px; }
.page-header h1{ color:#fff; font-size:clamp(1.9rem,3.6vw,2.7rem); }
.page-header p{ color:rgba(255,255,255,.72); max-width:640px; font-size:1.05rem; }
.crumb{ font-size:.8rem; color:rgba(255,255,255,.5); margin-bottom:16px; }
.crumb a{ color:rgba(255,255,255,.75); }

/* ---------- Reveal animation ---------- */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in{ opacity:1; transform:translateY(0); }

/* ---------- Misc ---------- */
.divider{ height:1px; background:var(--line); margin:64px 0; }
.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
@media (max-width:900px){ .two-col{ grid-template-columns:1fr; } }
.tag-list{ display:flex; flex-wrap:wrap; gap:10px; margin-top:8px; }
.tag-list span{ font-size:.82rem; font-weight:600; color:var(--navy); background:var(--bg-soft); border:1px solid var(--line); padding:7px 13px; border-radius:999px; }

.skip-link{ position:absolute; left:-999px; top:0; background:var(--royal); color:#fff; padding:10px 16px; z-index:999; }
.skip-link:focus{ left:12px; top:12px; }

:focus-visible{ outline:3px solid var(--teal); outline-offset:2px; }