/* ==========================================================================
   DARING MEDIA — brand tokens
   Shared by home.html and case-study-climate-actually.html
   Palette pulled from confirmed brand hexes + the gold used across the
   Climate ACTually carousel/branding. Swap --gold below if Studio Aitch
   confirms an official Daring Media gold.
   ========================================================================== */

:root{
  --ink:        #0B1210;   /* near-black background */
  --petrol:     #35535E;   /* dark slate/petrol — primary dark surface */
  --petrol-70:  #35535Eb3;
  --teal:       #5DCAA5;   /* accent — links, highlights, ripple */
  --gold:       #F2A93B;   /* warm gold accent, from Climate ACTually branding */
  --paper:      #F5F1E8;   /* warm off-white, light sections */
  --paper-dim:  #EAE4D6;
  --ink-soft:   rgba(245,241,232,.72);
  --ink-faint:  rgba(245,241,232,.45);
  --line:       rgba(245,241,232,.14);
  --line-dark:  rgba(11,18,16,.12);

  --font-display: "Sora", "Arial Black", sans-serif;
  --font-body:    "Inter", -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", "Courier New", monospace;

  --radius: 18px;
  --radius-sm: 10px;
  --wrap: 1180px;
}

@font-face{ font-family: system-fallback; src: local(Arial); }

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; }

.wrap{
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width:640px){ .wrap{ padding:0 20px; } }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--teal);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:16px; height:1px;
  background: var(--teal);
  display:inline-block;
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -.01em;
  margin: 0;
}

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing:.04em;
  text-transform: uppercase;
  text-decoration:none;
  padding: 14px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor:pointer;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-gold{ background: var(--gold); color: var(--ink); }
.btn-gold:hover{ transform: translateY(-2px); }
.btn-ghost{ border-color: var(--line); color: var(--paper); }
.btn-ghost:hover{ border-color: var(--teal); color: var(--teal); }
.btn-ghost-dark{ border-color: var(--line-dark); color: var(--ink); }
.btn-ghost-dark:hover{ border-color: var(--petrol); color: var(--petrol); }

/* ripple — the Climate ACTually easter egg, reused as the studio-wide
   signature motif for section dividers and hero atmosphere */
.ripple-mark{
  position:absolute;
  inset:0;
  overflow:hidden;
  pointer-events:none;
}
.ripple-mark svg{ width:100%; height:100%; }
.ripple-mark circle{
  fill:none;
  stroke: var(--teal);
  stroke-opacity:.16;
}

nav.site-nav{
  position:sticky; top:0; z-index:40;
  background: rgba(11,18,16,.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
nav.site-nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  padding-top:18px; padding-bottom:18px;
}
.logo-mark{
  font-family: var(--font-display);
  font-weight:800;
  font-size:19px;
  letter-spacing:.01em;
  text-decoration:none;
  color: var(--paper);
}
.logo-mark span{ color: var(--gold); }
.nav-links{ display:flex; gap:32px; list-style:none; margin:0; padding:0; }
.nav-links a{
  font-family: var(--font-mono);
  font-size:13px;
  letter-spacing:.06em;
  text-transform:uppercase;
  text-decoration:none;
  color: var(--ink-soft);
}
.nav-links a:hover{ color: var(--teal); }
/* hamburger button */
.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--line);
  border-radius:6px;
  padding:9px 11px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.hamburger-icon,
.hamburger-icon::before,
.hamburger-icon::after{
  display:block;
  width:20px;
  height:2px;
  background:var(--paper);
  border-radius:2px;
  transition:transform .2s, opacity .2s;
  position:relative;
}
.hamburger-icon::before,
.hamburger-icon::after{ content:''; position:absolute; left:0; }
.hamburger-icon::before{ top:-6px; }
.hamburger-icon::after{ top:6px; }
nav.site-nav.nav-open .hamburger-icon{ background:transparent; }
nav.site-nav.nav-open .hamburger-icon::before{ transform:rotate(45deg); top:0; }
nav.site-nav.nav-open .hamburger-icon::after{ transform:rotate(-45deg); top:0; }

@media (max-width:760px){
  .nav-toggle{ display:flex; }
  .nav-cta{ display:none !important; }
  nav.site-nav .wrap{ flex-wrap:wrap; }
  .nav-links{
    display:none;
    width:100%;
    flex-direction:column;
    gap:0;
    order:99;
    padding:6px 0 18px;
    border-top:1px solid var(--line);
    margin-top:10px;
  }
  nav.site-nav.nav-open .nav-links{ display:flex; }
  .nav-links li{ border-bottom:1px solid rgba(245,241,232,.06); }
  .nav-links li:last-child{ border-bottom:none; }
  .nav-links a{ display:block; padding:13px 0; font-size:14px; }
}

footer.site-footer{
  background: var(--ink);
  border-top: 1px solid var(--line);
  padding: 56px 0 40px;
}
footer.site-footer .wrap{
  display:flex; justify-content:space-between; align-items:flex-end; gap:24px; flex-wrap:wrap;
}
footer.site-footer .foot-note{
  font-family: var(--font-mono);
  font-size:12.5px;
  color: var(--ink-faint);
}