/* =========================================================
   CAIO — Global Styles (Drop-in replacement)
   Palette tuned to logo: electric blue / aqua on black
   ========================================================= */

/* ---------- Theme variables ---------- */
:root{
  --bg: #000000;                  /* page background */
  --card: #0B0F17;                /* panels/tiles */
  --card-soft: rgba(255,255,255,.04);
  --text: #E9F6FF;                /* body text */
  --muted: #A9C7D7;               /* muted text */
  --muted-2: #86A6B8;
  --border: rgba(255,255,255,.10);
  --accent: #7CC1FF;              /* electric blue */
  --accent-2: #49E8FF;            /* aqua edge */
  --accent-3: #9AF9FF;            /* light aqua */
  --gold: #FFD166;                /* optional highlight */
  --radius: 20px;
  --shadow: 0 10px 24px rgba(73,232,255,.18);
}

/* ---------- Reset / base ---------- */
*{ box-sizing:border-box; }
html, body{ margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}

img{ max-width:100%; height:auto; }
a{ color: var(--accent); }

/* ---------- Layout helpers ---------- */
.container{
  width: min(1100px, 92vw);
  margin: 0 auto;
}
.section{ padding: 44px 0; }
.section-head{ margin-bottom: 18px; }
.links-center{ text-align:center; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5{ margin: 0 0 10px; line-height:1.2; }
h1{ font-size: clamp(36px, 6vw, 56px); font-weight: 800; letter-spacing:.2px; }
h2{ font-size: clamp(26px, 4.2vw, 36px); font-weight: 800; }
h3{ font-size: clamp(20px, 3vw, 24px); font-weight: 800; }
p.small{ font-size:.92rem; }
.muted{ color: var(--muted); }
.muted.small{ font-size:.9rem; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:10px 14px; border-radius:14px; font-weight:700;
  text-decoration:none; color:var(--text);
  border:1px solid var(--border); background: var(--card-soft);
  transition: transform .12s ease, background .12s ease, filter .12s ease, box-shadow .12s ease;
}
.btn:hover{ background: rgba(255,255,255,.08); transform: translateY(-1px); }
.btn:active{ transform: translateY(0); }

.btn-primary{
  border:0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2) 50%, var(--accent-3));
  color:#001C23;
  box-shadow: var(--shadow);
}
.btn-primary:hover{ filter:brightness(1.05); }

.btn-outline{
  background: transparent; border:1px solid var(--border);
}
.btn-ghost{
  background: var(--card-soft); border:1px solid var(--border);
}

/* ---------- Header (works with your existing HTML) ---------- */
/* your markup:
<header class="header">
  <div class="container nav">
    <a class="brand">...</a>
    <nav class="spacer"> ...links... </nav>
    <div> ...CTAs... </div>
  </div>
</header>
*/
.header{
  position: sticky; top:0; z-index:50;
  background: rgba(0,0,0,.84);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.header .container.nav{
  display:flex; align-items:center; gap:18px; padding:10px 18px;
}
.brand{ display:flex; align-items:center; gap:10px; text-decoration:none; }
.brand img{ width:24px; height:24px; }
.brand span{ font-weight:800; letter-spacing:.2px; color:var(--accent); }
.brand:hover span{ color:#fff; text-shadow:0 0 10px rgba(124,193,255,.25); }

/* Navigation links — supports either .spacer (yours) or .nav-links (new) */
.spacer, .nav-links{ display:flex; align-items:center; gap:18px; }
.spacer a, .nav-links a{
  color: var(--accent); text-decoration:none; padding:8px 6px; border-radius:10px;
  transition: background .15s ease, color .15s ease, text-shadow .15s ease;
}
.spacer a:hover, .nav-links a:hover{
  color:#fff; background: rgba(255,255,255,.06); text-shadow:0 0 10px rgba(124,193,255,.25);
}

/* CTA block (the <div> following nav) */
.header .container.nav > div:last-of-type{
  margin-left:auto; display:flex; align-items:center; gap:12px;
}

/* Mobile nav toggle (optional; hidden by default) */
.nav-toggle{ display:none; margin-left:8px; background:none; border:0; }
.nav-toggle span{ display:block; width:22px; height:2px; background:var(--accent); margin:5px 0; border-radius:2px; }

/* ---------- Hero / utilities (safe defaults) ---------- */
.hero-center{ text-align:center; margin: 24px 0 8px; }
.lead{ font-size: clamp(16px, 2.2vw, 18px); color: var(--muted); }

/* ---------- Grid / tiles ---------- */
.grid{ display:grid; gap:16px; }
.cols-2{ grid-template-columns:repeat(2, minmax(0,1fr)); }
.cols-3{ grid-template-columns:repeat(3, minmax(0,1fr)); }
@media (max-width: 960px){
  .cols-3, .cols-2{ grid-template-columns:1fr; }
}

.tile{
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:18px;
  transition: border-color .15s ease, box-shadow .15s ease, transform .12s ease;
}
.tile:hover{
  border-color: rgba(73,232,255,.25);
  box-shadow: 0 10px 26px rgba(73,232,255,.12);
  transform: translateY(-1px);
}

/* ---------- Blog list & post ---------- */
.post-wrap{ max-width:900px; margin:0 auto; }
.post-meta{ color: var(--muted); }
.post-body{
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid var(--border); border-radius: var(--radius); padding:22px;
}
.post-body img{ border-radius:12px; }
.post-body pre{ overflow:auto; padding:12px; background:#0b121d; border-radius:12px; }
.post-share .btn{ margin-right:8px; }

.pager{ display:flex; gap:8px; justify-content:center; margin-top:16px; flex-wrap:wrap; }
.pager a{ padding:8px 12px; border-radius:999px; border:1px solid var(--border); text-decoration:none; color:var(--text); }
.pager a.active{ background: linear-gradient(135deg, var(--accent), var(--accent-2)); color:#001C23; border-color:transparent; font-weight:800; }

/* ---------- Footer ---------- */
.footer{
  border-top: 1px solid var(--border);
  padding: 22px 0; margin-top: 36px; color: var(--muted);
  background: rgba(0,0,0,.6);
}
.footer-row{ display:flex; justify-content:space-between; align-items:center; gap:16px; }
.footer-row nav{ display:flex; gap:14px; }
.footer-row a{ color: var(--muted-2); text-decoration:none; }
.footer-row a:hover{ color: var(--text); }

/* ---------- Sticky CTA (if used) ---------- */
.sticky-cta{
  position: fixed; right: 18px; bottom: 18px; z-index: 40;
  display:flex; gap:10px; align-items:center;
}
@media (max-width: 720px){
  .sticky-cta{ right: 12px; bottom: 12px; }
}

/* ---------- Tables (used in blog example) ---------- */
table{ width:100%; border-collapse: collapse; background: var(--card-soft); border:1px solid var(--border); border-radius:12px; overflow:hidden; }
th, td{ padding:10px 12px; border-bottom:1px solid var(--border); text-align:left; }
th{ color: var(--muted); font-weight:700; }
tr:last-child td{ border-bottom:0; }

/* ---------- Misc niceties ---------- */
hr{ border:0; height:1px; background: var(--border); margin: 18px 0; }
code{ background: rgba(255,255,255,.06); padding: 2px 6px; border-radius:8px; }
blockquote{ margin: 0; padding: 10px 14px; border-left: 3px solid var(--accent-2); background: rgba(255,255,255,.05); color: var(--muted); border-radius: 0 10px 10px 0; }

/* ---------- Mobile adjustments ---------- */
@media (max-width: 960px){
  .spacer, .nav-links, .header .container.nav > div:last-of-type{ display:none; }
  .nav-toggle{ display:block; }
  /* If you attach a .show class via tiny JS toggle */
  .spacer.show, .nav-links.show{
    display:flex; flex-direction:column; gap:8px;
    position:absolute; left:0; right:0; top:56px; padding:12px 18px;
    background: var(--bg); border-bottom:1px solid var(--border);
  }
  .header .container.nav > div:last-of-type.show{
    display:flex; position:absolute; right:18px; top:56px; gap:10px;
  }
}