/* ==== THEME TOKENS ======================================================= */
/* Light defaults */
:root{
  --bg:#f6f8fb;
  --bg-2:#e9edf3;
  --text:#0d1117;
  --muted:#516072;
  --accent:#2b7abf;
  --accent-2:#58aaf0;
  --card:#ffffff;
  --border:#d7e0ea;
  --shadow: 0 20px 40px rgba(0,0,0,.15);
}

/* Dark (auto via system) */
@media (prefers-color-scheme: dark){
  :root{
    --bg:#1d2025;
    --bg-2:#252a30;
    --text:#e9eef2;
    --muted:#a8b3bd;
    --accent:#5fa8d3;
    --accent-2:#7fd0ff;
    --card:#1a1d21;
    --border:#3a4048;
    --shadow: 0 20px 40px rgba(0,0,0,.35);
  }
}

/* Explicit overrides from theme picker */
html[data-theme="light"]{
  --bg:#f6f8fb; --bg-2:#e9edf3; --text:#0d1117; --muted:#516072;
  --accent:#2b7abf; --accent-2:#58aaf0; --card:#ffffff; --border:#d7e0ea;
  --shadow: 0 20px 40px rgba(0,0,0,.15);
}
html[data-theme="dark"]{
  --bg:#1d2025; --bg-2:#252a30; --text:#e9eef2; --muted:#a8b3bd;
  --accent:#5fa8d3; --accent-2:#7fd0ff; --card:#1a1d21; --border:#3a4048;
  --shadow: 0 20px 40px rgba(0,0,0,.35);
}

/* ==== BASE =============================================================== */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 540px at 8% -8%, color-mix(in oklab, var(--bg-2) 85%, black 0%) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
img{max-width:100%; height:auto; display:block}

/* Layout helpers */
.container{max-width:1100px; margin:0 auto; padding:0 20px}
.main-pad{padding-top:18px}

/* ==== HEADER + MENU ====================================================== */
.nav{
  position:sticky; top:0; z-index:50;
  background:linear-gradient(180deg, color-mix(in oklab, var(--bg) 92%, transparent 0%) 0%, transparent 100%);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid color-mix(in oklab, var(--border) 60%, transparent 40%);
}
.nav-inner{display:flex; align-items:center; justify-content:space-between; gap:12px; padding:14px 20px; max-width:1100px; margin:0 auto}
.brand{display:flex; align-items:center; gap:12px; color:var(--text); text-decoration:none}
.logo{width:42px; height:42px; border-radius:12px}
.brand span{font-weight:600}

/* Hamburger always visible */
.menu-toggle{
  display:inline-flex; align-items:center; justify-content:center;
  width:46px; height:36px; border-radius:12px;
  background:var(--card); border:1px solid var(--border); color:var(--text);
  box-shadow: 0 6px 14px rgba(0,0,0,.08);
}
.menu-toggle:hover{border-color:var(--accent); color:var(--accent)}

/* Dropdown panel */
.links{
  position:absolute; right:20px; top:64px; display:none;
  width:260px; padding:14px;
  background:var(--card); border:1px solid var(--border); border-radius:12px;
  box-shadow:var(--shadow);
}
.links.open{display:block}
.links a, .links .theme{display:block}
.links a{
  color:var(--text); text-decoration:none; padding:10px 10px; border-radius:8px;
  border:1px solid transparent; margin-bottom:6px;
}
.links a:hover{border-color:var(--border); background:color-mix(in oklab, var(--card) 85%, var(--bg-2) 15%)}

/* Theme control inside menu */
.theme{display:block; margin:8px 0}
.theme select{
  width:100%; padding:8px 10px; border-radius:8px;
  background:transparent; color:var(--text); border:1px solid var(--border)
}
.sr-only{position:absolute;clip:rect(1px,1px,1px,1px);padding:0;border:0;height:1px;width:1px;overflow:hidden}

/* ==== BUTTONS ============================================================ */
.btn{
  display:inline-block; padding:12px 18px; border-radius:12px;
  border:1px solid var(--border); color:var(--text); text-decoration:none
}
.btn:hover{border-color:var(--accent); color:var(--accent)}
.btn-primary{
  background:linear-gradient(180deg, var(--accent) 0%, var(--accent-2) 100%);
  color:#0b0e11; border:none; box-shadow:0 10px 22px rgb(95 168 211 / 25%);
}
.btn-primary:hover{filter:brightness(1.05)}
.btn-ghost{background:transparent}

/* ==== HERO =============================================================== */
.hero{max-width:1100px; margin:28px auto 10px; padding:0 20px; display:grid; grid-template-columns:1.1fr .9fr; gap:32px; align-items:center}
.hero-inner h1{font-size: clamp(32px, 4.2vw, 58px); line-height:1.1; margin:0 0 14px; font-weight:800}
.accent{color:var(--accent)}
.lede{color:var(--muted); font-size:18px; margin:0 0 18px}
.cta{display:flex; gap:12px; margin:14px 0 12px}
.trust{color:var(--muted); font-size:16px; margin:6px 0 0; padding-left:18px}
.trust li{margin:6px 0}
.hero-art img{width:100%; border-radius:14px; border:1px solid var(--border); box-shadow:var(--shadow)}

/* ==== GRID (home) ======================================================== */
.grid{max-width:1100px; margin:24px auto; padding:0 20px; display:grid; grid-template-columns:repeat(4,1fr); gap:18px}
.grid article{background:linear-gradient(180deg, color-mix(in oklab, var(--card) 90%, var(--bg-2) 10%), var(--card)); border:1px solid var(--border); border-radius:14px; padding:18px}
.grid h3{margin:10px 0 6px}
.grid p{margin:0; color:var(--muted)}
.icon{font-size:22px}

/* ==== PANEL =============================================================== */
.panel{max-width:860px; margin:36px auto; padding:24px 20px; background:linear-gradient(180deg, color-mix(in oklab, var(--card) 92%, var(--bg-2) 8%), var(--card)); border:1px solid var(--border); border-radius:16px; text-align:center}
.panel h2{margin:0 0 8px; font-size:28px}
.panel p{margin:0 0 16px; color:var(--muted)}
.form{display:flex; gap:10px; justify-content:center; flex-wrap:wrap}
.form input{background:transparent; color:var(--text); border:1px solid var(--border); padding:12px 14px; border-radius:10px; min-width:260px}
.form label span{display:none}

/* ==== FOOTER ============================================================= */
.footer{max-width:1100px; margin:40px auto 60px; padding:0 20px; display:flex; justify-content:space-between; align-items:center; color:#98a3ad; font-size:14px}
.footer a{color:#98a3ad; text-decoration:none}
.footer a:hover{color:var(--text)}
.social{display:flex; gap:12px}
.social a{display:inline-flex; width:28px; height:28px; align-items:center; justify-content:center; border-radius:50%; border:1px solid var(--border); background:var(--card)}
.social a:hover{border-color:var(--accent)}
.social img{width:18px; height:18px; display:block; opacity:.92; transition:opacity .15s ease}

/* --- LinkedIn icon behavior (black -> blue hover; white in dark mode) --- */
.social a.linkedin img{ content:url("/assets/icons/linkedin-black.png"); }
.social a.linkedin:hover img,
.social a.linkedin:focus-visible img{
  content:url("/assets/icons/linkedin-blue.png");
  opacity:1;
}
@media (prefers-color-scheme: dark){
  html:not([data-theme="light"]) .social a.linkedin img{
    content:url("/assets/icons/linkedin-white.png");
  }
  html:not([data-theme="light"]) .social a.linkedin:hover img,
  html:not([data-theme="light"]) .social a.linkedin:focus-visible img{
    content:url("/assets/icons/linkedin-blue.png");
  }
}
html[data-theme="dark"] .social a.linkedin img{
  content:url("/assets/icons/linkedin-white.png");
}
html[data-theme="dark"] .social a.linkedin:hover img,
html[data-theme="dark"] .social a.linkedin:focus-visible img{
  content:url("/assets/icons/linkedin-blue.png");
}

/* ==== SERVICES PAGE ====================================================== */
.service-hero .hero-inner h1{margin-bottom:8px}
.cards{max-width:1100px; margin:18px auto 32px; padding:0 20px; display:grid; gap:18px; grid-template-columns:repeat(4,1fr)}
.card{background:linear-gradient(180deg, color-mix(in oklab, var(--card) 90%, var(--bg-2) 10%), var(--card)); border:1px solid var(--border); border-radius:14px; padding:18px}
.card-icon{font-size:28px; line-height:1; margin-bottom:8px}
.bullets{padding-left:18px; margin:10px 0 0}
.bullets li{color:var(--muted); margin:6px 0}

.engagement{display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:12px}
.engagement > div{background:linear-gradient(180deg, color-mix(in oklab, var(--card) 90%, var(--bg-2) 10%), var(--card)); border:1px solid var(--border); border-radius:12px; padding:16px}

/* ==== RESPONSIVE ========================================================= */
@media (max-width:900px){
  .hero{grid-template-columns:1fr; margin-top:8px}
  .grid{grid-template-columns:repeat(2,1fr)}
  .cards{grid-template-columns:repeat(2,1fr)}
  .engagement{grid-template-columns:1fr}
}
@media (max-width:560px){
  .grid{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
}