/* ═══════════════════════════════════════════
   DATAWITHTOSIN — SHARED DESIGN SYSTEM
   ═══════════════════════════════════════════ */

:root {
  /* Colours */
  --bg:          #0a0a0f;
  --surface:     #111118;
  --surface2:    #18181f;
  --surface3:    #1e1e28;
  --border:      rgba(255,255,255,0.07);
  --border2:     rgba(255,255,255,0.13);
  --accent:      #7c6aff;
  --accent2:     #a855f7;
  --gold:        #f0b429;
  --gold2:       #ffd166;
  --green:       #22c55e;
  --red:         #f87171;
  --text:        #f0eff8;
  --muted:       #8b8aa0;
  --muted2:      #b5b3cc;
  --white:       #ffffff;

  /* Radii */
  --radius:    16px;
  --radius-sm: 10px;
  --radius-xs: 6px;

  /* Shadows */
  --shadow:    0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.6);
}

/* ── RESET ─────────────────────────────────── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration:none; color:inherit; }
img { max-width:100%; display:block; }
button { font-family:'DM Sans',sans-serif; cursor:pointer; border:none; }

/* ── NOISE + BLOBS ─────────────────────────── */
body::before {
  content:'';
  position:fixed; inset:0;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events:none; z-index:0; opacity:.5;
}
.blob { position:fixed; border-radius:50%; filter:blur(130px); opacity:.10; pointer-events:none; z-index:0; }
.blob-1 { width:600px; height:600px; background:var(--accent);  top:-200px;  right:-100px; }
.blob-2 { width:500px; height:500px; background:var(--accent2); bottom:-100px; left:-150px; }
.blob-3 { width:280px; height:280px; background:var(--gold);    top:50%;     left:50%; transform:translate(-50%,-50%); }

/* ── NAV ───────────────────────────────────── */
nav {
  position:fixed; top:0; left:0; right:0; z-index:200;
  padding:16px 5%;
  display:flex; align-items:center; justify-content:space-between;
  backdrop-filter:blur(20px);
  background:rgba(10,10,15,0.75);
  border-bottom:1px solid var(--border);
}
.nav-logo {
  font-family:'Syne',sans-serif; font-weight:800; font-size:17px;
  letter-spacing:-0.02em; color:var(--text);
}
.nav-logo span { color:var(--accent); }
.nav-links {
  display:flex; align-items:center; gap:4px;
}
.nav-link {
  padding:8px 14px; border-radius:999px; font-size:13px; font-weight:500;
  color:var(--muted2); transition:all .2s; border:1px solid transparent;
}
.nav-link:hover, .nav-link.active { color:var(--text); background:var(--surface2); }
.nav-cta {
  background:var(--accent); color:#fff; padding:8px 20px;
  border-radius:999px; font-size:13px; font-weight:600;
  transition:opacity .2s;
}
.nav-cta:hover { opacity:.88; }
.nav-mobile-toggle {
  display:none; background:transparent; border:1px solid var(--border2);
  color:var(--text); padding:8px 12px; border-radius:var(--radius-xs); font-size:18px;
}
.mobile-menu {
  display:none; position:fixed; top:64px; left:0; right:0; z-index:199;
  background:rgba(10,10,15,0.97); backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border); padding:16px 5%;
  flex-direction:column; gap:4px;
}
.mobile-menu.open { display:flex; }
.mobile-menu .nav-link { width:100%; padding:12px 16px; border-radius:var(--radius-sm); }

/* ── FOOTER ────────────────────────────────── */
footer {
  position:relative; z-index:1;
  border-top:1px solid var(--border);
  padding:48px 5% 32px;
  margin-top:80px;
}
.footer-grid {
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px;
  max-width:1200px; margin:0 auto 48px;
}
.footer-brand .nav-logo { font-size:20px; margin-bottom:12px; }
.footer-brand p { font-size:14px; color:var(--muted); line-height:1.7; max-width:280px; }
.footer-col h4 {
  font-family:'Syne',sans-serif; font-size:13px; font-weight:700;
  color:var(--text); margin-bottom:16px; letter-spacing:.05em; text-transform:uppercase;
}
.footer-col a {
  display:block; font-size:14px; color:var(--muted2);
  padding:4px 0; transition:color .2s;
}
.footer-col a:hover { color:var(--accent); }
.footer-bottom {
  max-width:1200px; margin:0 auto;
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px;
  padding-top:24px; border-top:1px solid var(--border);
  font-size:13px; color:var(--muted);
}
.footer-socials { display:flex; gap:12px; }
.footer-social {
  width:36px; height:36px; border-radius:50%;
  border:1px solid var(--border2);
  display:flex; align-items:center; justify-content:center;
  font-size:14px; color:var(--muted2); transition:all .2s;
}
.footer-social:hover { border-color:var(--accent); color:var(--accent); background:rgba(124,106,255,.08); }

/* ── COMMON SECTION UTILITIES ──────────────── */
.section-label {
  font-size:11px; font-weight:700; letter-spacing:.12em;
  text-transform:uppercase; color:var(--accent); margin-bottom:10px;
}
.section-title {
  font-family:'Syne',sans-serif; font-weight:800;
  font-size:clamp(26px,4vw,40px); letter-spacing:-0.02em;
  line-height:1.1; margin-bottom:16px;
}
.section-sub {
  font-size:17px; color:var(--muted2); line-height:1.7;
  max-width:600px; font-weight:300;
}

/* ── BUTTONS ───────────────────────────────── */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 28px; border-radius:999px; font-size:15px; font-weight:600;
  transition:all .2s; cursor:pointer; border:none;
}
.btn-primary { background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; }
.btn-primary:hover { opacity:.9; transform:translateY(-1px); }
.btn-secondary { background:transparent; border:1px solid var(--border2); color:var(--text); }
.btn-secondary:hover { background:var(--surface2); border-color:var(--accent); }
.btn-gold { background:linear-gradient(135deg,var(--gold),var(--gold2)); color:#111; }
.btn-gold:hover { opacity:.9; transform:translateY(-1px); }
.btn-whatsapp { background:#25d366; color:#fff; }
.btn-whatsapp:hover { opacity:.88; }
.btn-sm { padding:9px 20px; font-size:13px; }

/* ── CARDS ─────────────────────────────────── */
.card {
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); padding:28px; transition:border-color .25s;
}
.card:hover { border-color:var(--border2); }
.card-featured { border-color:var(--accent); background:linear-gradient(145deg,rgba(124,106,255,.07),var(--surface)); }

/* ── TAGS / BADGES ─────────────────────────── */
.tag {
  display:inline-block; padding:4px 12px; border-radius:999px;
  font-size:12px; font-weight:500;
  background:rgba(255,255,255,.06); border:1px solid var(--border); color:var(--muted2);
}
.tag-accent { background:rgba(124,106,255,.12); border-color:rgba(124,106,255,.3); color:#a89fff; }
.tag-gold   { background:rgba(240,180,41,.12);  border-color:rgba(240,180,41,.3);  color:var(--gold); }
.tag-green  { background:rgba(34,197,94,.12);   border-color:rgba(34,197,94,.3);   color:var(--green); }

/* ── PULSE ANIMATION ───────────────────────── */
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1);}50%{opacity:.5;transform:scale(.85);} }
@keyframes fadeUp { from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);} }
@keyframes gradientShift { 0%,100%{background-position:0% 50%;}50%{background-position:100% 50%;} }

/* ── RESPONSIVE ────────────────────────────── */
@media(max-width:900px){
  .nav-links, .nav-cta { display:none; }
  .nav-mobile-toggle { display:block; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
}
@media(max-width:600px){
  .footer-grid { grid-template-columns:1fr; gap:24px; }
  .footer-bottom { flex-direction:column; text-align:center; }
}