/* ============================================================
   SCL Digital Marketing — Design tokens
   ============================================================ */
:root{
  --bg:            #082629;
  --bg-elevated:   #0D3438;
  --bg-elevated-2: #103F43;
  --turquoise:     #16C6B4;
  --turquoise-2:   #5FF0DE;
  --turquoise-dim: #0E5C55;
  --text:          #EAF6F4;
  --muted:         #9BC7C2;
  --muted-2:       #6E9793;
  --border:        rgba(234,246,244,0.10);
  --border-strong: rgba(234,246,244,0.18);

  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body:    "Inter", sans-serif;
  --font-mono:    "IBM Plex Mono", monospace;

  --wrap: 1160px;
  --radius: 14px;
  --radius-sm: 8px;

  --ease: cubic-bezier(.4,0,.2,1);
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

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

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

::selection{ background: var(--turquoise-dim); color: var(--turquoise-2); }

a{ color: inherit; text-decoration: none; }

img{ max-width: 100%; display:block; }

.wrap{
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.mono{ font-family: var(--font-mono); }

.eyebrow{
  display:inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--turquoise-2);
  margin: 0 0 14px;
}
.eyebrow.center{ display:block; text-align:center; }

.section-sub{
  color: var(--muted);
  max-width: 560px;
  font-size: 1.02rem;
}
.section-sub.center{ margin-left:auto; margin-right:auto; text-align:center; }

h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
}
h2{ font-size: clamp(1.7rem, 3vw, 2.5rem); }
h2.center{ text-align:center; }
h3{ font-size: 1.15rem; }

p{ margin: 0 0 16px; }

/* Grain overlay for texture, subtle */
.grain-overlay{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.035;
  background-image:
    repeating-linear-gradient(0deg, transparent 0 2px, #fff 2px 3px);
  mix-blend-mode: overlay;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn:active{ transform: translateY(0); }

.btn-primary{
  background: linear-gradient(135deg, var(--turquoise), var(--turquoise-2));
  color: #06201F;
}
.btn-primary:hover{ box-shadow: 0 8px 28px rgba(22,198,180,0.35); }

.btn-ghost{
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover{ border-color: var(--turquoise-2); color: var(--turquoise-2); }

.btn-small{ padding: 9px 20px; font-size: 0.85rem; }

/* ============================================================
   Header
   ============================================================ */
.site-header{
  position: sticky;
  top:0;
  z-index: 100;
  background: rgba(8,38,41,0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  height: 78px;
  gap: 24px;
}

.logo{
  display:flex;
  align-items:baseline;
  gap:9px;
  font-family: var(--font-display);
}
.logo-mark{
  font-weight:700;
  font-size:1.35rem;
  letter-spacing: 0.03em;
  color: var(--turquoise-2);
}
.logo-full{
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.01em;
}

.main-nav{
  display:flex;
  gap: 34px;
  margin-left: auto;
  margin-right: 8px;
}
.main-nav a{
  font-size: 0.94rem;
  color: var(--muted);
  position: relative;
  transition: color .2s var(--ease);
}
.main-nav a:hover{ color: var(--text); }
.main-nav a::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-6px;
  height:1px;
  background: var(--turquoise);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.main-nav a:hover::after{ transform: scaleX(1); }

.header-cta{ flex-shrink:0; }

.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding: 6px;
}
.nav-toggle span{
  width: 22px; height:2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}

/* ============================================================
   Hero
   ============================================================ */
.hero{
  position: relative;
  padding: 128px 0 110px;
  overflow: hidden;
  isolation: isolate;
}
.hero::before{
  content:"";
  position:absolute;
  inset: -10% -10% auto -10%;
  height: 70%;
  background: radial-gradient(60% 60% at 50% 0%, rgba(22,198,180,0.16), transparent 70%);
  z-index: -1;
}
#network-canvas{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  z-index: -1;
  opacity: 0.75;
}

.hero-inner{ max-width: 760px; }

.hero-title{
  font-size: clamp(2.1rem, 4.6vw, 3.55rem);
  margin-bottom: 24px;
}
.text-accent{
  color: var(--turquoise-2);
}

.hero-sub{
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 560px;
  margin-bottom: 34px;
}

.hero-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}

/* ============================================================
   About
   ============================================================ */
.about{ padding: 96px 0; border-top: 1px solid var(--border); }

.about-grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items:start;
}

.about-copy p{ color: var(--muted); }

.about-points{
  list-style:none;
  margin: 26px 0 0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap: 14px;
}
.about-points li{
  display:flex;
  align-items:baseline;
  gap: 14px;
  color: var(--text);
  font-size: 0.98rem;
}
.point-mark{
  font-family: var(--font-mono);
  color: var(--turquoise);
  font-size: 0.8rem;
}

.about-visual{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.node-card{
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.node-card:hover{ transform: translateY(-4px); border-color: var(--border-strong); }
.node-card p{ margin:0; font-size: 0.98rem; color: var(--text); }
.node-tag{
  display:block;
  color: var(--turquoise-2);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.node-card--primary{
  background: linear-gradient(160deg, var(--turquoise-dim), var(--bg-elevated) 70%);
  border-color: var(--turquoise-dim);
}
.node-card--ghost{ grid-column: 1 / -1; }

/* ============================================================
   Services
   ============================================================ */
.services{ padding: 96px 0; border-top: 1px solid var(--border); }

.services-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 48px 0 64px;
}

.service-card{
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.service-card:hover{
  transform: translateY(-4px);
  border-color: var(--turquoise-dim);
  background: var(--bg-elevated-2);
}
.service-card h3{ color: var(--turquoise-2); }
.service-card p{ color: var(--muted); margin:0; font-size: 0.96rem; }

.industries{ text-align:center; }
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  justify-content:center;
}
.chip{
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 9px 18px;
  font-size: 0.88rem;
  color: var(--muted);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq{ padding: 96px 0; border-top: 1px solid var(--border); }

.faq-grid{
  display:grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items:start;
}

.faq-list{ display:flex; flex-direction:column; }

.faq-item{
  border-bottom: 1px solid var(--border);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 20px;
  background:none;
  border:none;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.02rem;
  text-align:left;
  padding: 22px 4px;
  cursor:pointer;
}
.faq-icon{
  position:relative;
  width:18px; height:18px;
  flex-shrink:0;
}
.faq-icon::before, .faq-icon::after{
  content:"";
  position:absolute;
  background: var(--turquoise-2);
  border-radius: 2px;
}
.faq-icon::before{ width:100%; height:2px; top:8px; left:0; }
.faq-icon::after{ width:2px; height:100%; top:0; left:8px; transition: transform .25s var(--ease); }
.faq-question[aria-expanded="true"] .faq-icon::after{ transform: rotate(90deg); }

.faq-answer{
  max-height:0;
  overflow:hidden;
  transition: max-height .3s var(--ease);
}
.faq-answer p{
  color: var(--muted);
  padding: 0 4px 22px;
  max-width: 540px;
}

/* ============================================================
   Contact
   ============================================================ */
.contact{ padding: 96px 0 110px; border-top: 1px solid var(--border); }

.contact-grid{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items:start;
}

.contact-details{
  margin-top: 30px;
  display:flex;
  flex-direction:column;
  gap: 20px;
}
.contact-detail{
  display:flex;
  flex-direction:column;
  gap: 4px;
}
.contact-label{
  color: var(--turquoise-2);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.contact-detail a:hover{ color: var(--turquoise-2); }

.contact-form{
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  display:flex;
  flex-direction:column;
  gap: 18px;
}
.form-row{ display:flex; flex-direction:column; gap:8px; }
.form-row label{ font-size: 0.86rem; color: var(--muted); }
.form-row input, .form-row textarea{
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color .2s var(--ease);
}
.form-row input:focus, .form-row textarea:focus{
  outline: none;
  border-color: var(--turquoise);
}
.form-submit{ margin-top: 4px; align-self:flex-start; }
.form-note{
  margin:0;
  font-size: 0.88rem;
  color: var(--turquoise-2);
  min-height: 1.2em;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer{
  border-top: 1px solid var(--border);
  padding-top: 56px;
  background: var(--bg-elevated);
}
.footer-inner{
  display:flex;
  flex-wrap:wrap;
  gap: 32px;
  justify-content:space-between;
  align-items:flex-start;
  padding-bottom: 40px;
}
.footer-brand{
  display:flex;
  align-items:baseline;
  gap:9px;
  font-family: var(--font-display);
}
.footer-nav{
  display:flex;
  gap: 26px;
  flex-wrap:wrap;
}
.footer-nav a{ color: var(--muted); font-size: 0.92rem; }
.footer-nav a:hover{ color: var(--turquoise-2); }

.footer-contact{
  display:flex;
  flex-direction:column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
  text-align:right;
}
.footer-contact a:hover{ color: var(--turquoise-2); }

.footer-bottom{
  border-top: 1px solid var(--border);
  padding: 20px 24px;
}
.footer-bottom p{
  margin:0;
  font-size: 0.82rem;
  color: var(--muted-2);
  text-align:center;
}

/* ============================================================
   Focus visibility
   ============================================================ */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--turquoise-2);
  outline-offset: 3px;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px){
  .about-grid, .faq-grid, .contact-grid{ grid-template-columns: 1fr; }
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .about-visual{ order: -1; }
}

@media (max-width: 720px){
  .main-nav{ display:none; }
  .header-cta{ display:none; }
  .nav-toggle{ display:flex; }
  .site-header.nav-open .main-nav{
    display:flex;
    position:absolute;
    top: 78px; left:0; right:0;
    flex-direction:column;
    background: var(--bg-elevated);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  .hero{ padding: 92px 0 80px; }
  .services-grid{ grid-template-columns: 1fr; }
  .footer-inner{ flex-direction:column; }
  .footer-contact{ text-align:left; }
}