/* ===========================================================
   DRCoreTech — shared stylesheet
   =========================================================== */

:root{
  --bg-light:#f0f0ee;
  --bg-dark:#0e1013;
  --text-light:#2b2e33;
  --text-dark:#f3f4f2;
  --muted-light:#5b5f66;
  --muted-dark:#9a9da3;
  --accent-1:#1fb6a6;   /* teal */
  --accent-2:#3a7bd5;   /* cobalt */
  --card-light:#ffffff;
  --card-dark:#171a1f;
  --line-light:rgba(43,46,51,.12);
  --line-dark:rgba(255,255,255,.10);
  --radius-pill:999px;
  --radius-card:22px;
  --ease:cubic-bezier(.16,.84,.44,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:'Manrope', 'Segoe UI', sans-serif;
  background:var(--bg-light);
  color:var(--text-light);
  transition:background .5s var(--ease), color .5s var(--ease);
  overflow-x:hidden;
}

body.dark{
  background:var(--bg-dark);
  color:var(--text-dark);
}

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

::selection{background:var(--accent-1); color:#fff;}

/* ---------- layout ---------- */
.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- top nav ---------- */
.topbar{
  position:fixed;
  top:0; left:0; right:0;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:26px 32px;
}

.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-pill);
  background:var(--card-light);
  font-weight:700;
  font-size:.95rem;
  letter-spacing:.2px;
  box-shadow:0 6px 18px rgba(0,0,0,.06);
  border:1px solid var(--line-light);
  cursor:pointer;
  transition:all .3s var(--ease), color .3s, background .3s;
}
body.dark .pill{
  background:var(--card-dark);
  border-color:var(--line-dark);
  box-shadow:0 6px 18px rgba(0,0,0,.4);
}
.pill.active, .pill:hover{ color:var(--accent-1); }

.logo{
  font-family:'Space Grotesk', 'Manrope', sans-serif;
  font-weight:800;
  font-size:1.5rem;
  letter-spacing:-.5px;
  display:flex;
  align-items:center;
  gap:2px;
  cursor:pointer;
  transition:opacity .25s var(--ease), transform .25s var(--ease);
}
.logo:hover{ opacity:.85; transform:translateY(-1px); }
.logo .core{ color:var(--accent-2); }
.coreSub{ color:var(--text-light); }
.logo .suffix{
  background:linear-gradient(90deg,var(--accent-1),#3fd6b0);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
body.dark .logo .core{ color:#5fd1ea; }
body.dark .coreSub{ color:var(--text-dark); }
body.dark .logo .suffix{
  background:none; -webkit-background-clip:initial; background-clip:initial;
  color:#c7cad0;
}

/* ---------- hero / polyhedron ---------- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:140px 24px 120px;
  overflow:hidden;
}

#poly-stage{
  position:absolute;
  top:50%; left:50%;
  width:1100px; height:1100px;
  transform:translate(-50%,-54%);
  pointer-events:none;
  z-index:0;
}
#poly-stage svg{
  width:100%; height:100%;
  display:block;
}
.poly-edge{
  stroke:var(--text-light);
  stroke-opacity:.14;
  stroke-width:1;
  fill:none;
  transition:stroke .5s;
}
body.dark .poly-edge{stroke:var(--text-dark); stroke-opacity:.16;}
.poly-node{
  fill:var(--accent-1);
  opacity:.55;
}

.particle{
  position:absolute;
  width:5px;height:5px;
  background:var(--accent-1);
  border-radius:1px;
  opacity:.55;
}

.hero-content{ position:relative; z-index:2; }

.eyebrow{
  font-size:.8rem;
  letter-spacing:3px;
  text-transform:uppercase;
  color:var(--muted-light);
  margin-bottom:18px;
  font-weight:700;
}
body.dark .eyebrow{color:var(--muted-dark);}

h1.headline{
  font-family:'Space Grotesk', sans-serif;
  font-size:clamp(2.4rem, 6vw, 4.6rem);
  font-weight:800;
  line-height:1.04;
  letter-spacing:-1.5px;
  margin:0 0 18px;
}
h1.headline .accent{
  background:linear-gradient(90deg,var(--accent-2),var(--accent-1));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

.tagline{
  font-size:1.3rem;
  font-weight:700;
  margin:0 0 22px;
  color:var(--text-light);
}
body.dark .tagline{color:var(--text-dark);}

.sub{
  max-width:620px;
  margin:0 auto 40px;
  font-size:1.05rem;
  line-height:1.6;
  color:var(--muted-light);
}
body.dark .sub{color:var(--muted-dark);}

.cta-row{display:flex; gap:16px; justify-content:center; flex-wrap:wrap;}

.btn{
  padding:15px 30px;
  border-radius:var(--radius-pill);
  font-weight:700;
  font-size:.95rem;
  display:inline-block;
  border:1px solid var(--line-light);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease);
}
body.dark .btn{border-color:var(--line-dark);}
.btn:hover{ transform:translateY(-3px); }
.btn-solid{
  background:linear-gradient(90deg,var(--accent-2),var(--accent-1));
  color:#fff;
  box-shadow:0 10px 24px rgba(31,182,166,.30);
}
.btn-ghost{ background:transparent; }

/* fade-up entrance */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in{ opacity:1; transform:translateY(0); }

/* hero text — comes in one line at a time on load */
.stagger{
  opacity:0;
  transform:translateY(24px);
  animation:staggerUp .8s var(--ease) forwards;
  animation-delay:calc(var(--d, 0) * .16s + .15s);
}
@keyframes staggerUp{
  to{ opacity:1; transform:translateY(0); }
}

/* ---------- sections ---------- */
section{ padding:90px 0; position:relative; }

.section-head{ text-align:center; margin-bottom:56px; }
.section-head .eyebrow{margin-bottom:10px;}
.section-head h2{
  font-family:'Space Grotesk', sans-serif;
  font-size:clamp(1.8rem,4vw,2.6rem);
  font-weight:800;
  letter-spacing:-1px;
  margin:0 0 12px;
}
.section-head p{ color:var(--muted-light); max-width:560px; margin:0 auto;}
body.dark .section-head p{color:var(--muted-dark);}

/* services grid */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
@media (max-width:880px){ .grid-3{grid-template-columns:1fr;} }
.grid-3.grid-2{ grid-template-columns:repeat(2,1fr); max-width:780px; margin:0 auto; }
@media (max-width:700px){ .grid-3.grid-2{grid-template-columns:1fr;} }

.card{
  background:var(--card-light);
  border:1px solid var(--line-light);
  border-radius:var(--radius-card);
  padding:34px 28px;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), background .3s, border-color .3s;
}
body.dark .card{ background:var(--card-dark); border-color:var(--line-dark); }
.card:hover{ transform:translateY(-8px); box-shadow:0 20px 40px rgba(0,0,0,.10); }
body.dark .card:hover{ box-shadow:0 20px 40px rgba(0,0,0,.5); }

.card .icon{
  width:48px;height:48px;
  border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,var(--accent-2),var(--accent-1));
  color:#fff; font-size:1.3rem; margin-bottom:20px;
}
.card h3{ font-size:1.15rem; margin:0 0 10px; font-weight:800; }
.card p{ color:var(--muted-light); font-size:.94rem; line-height:1.6; margin:0;}
body.dark .card p{color:var(--muted-dark);}

/* stats strip */
.stats{
  display:flex; justify-content:center; gap:64px; flex-wrap:wrap;
  padding:50px 0;
}
.stat{text-align:center;}
.stat .num{
  font-family:'Space Grotesk', sans-serif;
  font-size:2.4rem; font-weight:800;
  background:linear-gradient(90deg,var(--accent-2),var(--accent-1));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.stat .lbl{ font-size:.8rem; letter-spacing:1.5px; text-transform:uppercase; color:var(--muted-light); margin-top:6px;}
body.dark .stat .lbl{color:var(--muted-dark);}

/* ---------- portfolio page ---------- */
.toggle-row{ display:flex; justify-content:center; gap:18px; margin-bottom:50px; }

.toggle-row .pill{
  background:var(--bg-light);
  border:none;
  box-shadow:
    7px 7px 14px rgba(0,0,0,.08),
    -7px -7px 14px rgba(255,255,255,.85);
  color:var(--muted-light);
  font-weight:800;
}
body.dark .toggle-row .pill{
  background:var(--bg-dark);
  box-shadow:
    7px 7px 14px rgba(0,0,0,.55),
    -7px -7px 14px rgba(255,255,255,.04);
  color:var(--muted-dark);
}
.toggle-row .pill.active{
  color:#3a7bd5;
  box-shadow:
    inset 4px 4px 10px rgba(0,0,0,.08),
    inset -4px -4px 10px rgba(255,255,255,.85);
}
body.dark .toggle-row .pill.active{
  box-shadow:
    inset 4px 4px 10px rgba(0,0,0,.6),
    inset -4px -4px 10px rgba(255,255,255,.05);
}

.proj-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:46px;
}
@media (max-width:880px){ .proj-grid{grid-template-columns:1fr;} }
.proj-grid-single{
  grid-template-columns:1fr;
  max-width:760px;
  margin:0 auto;
}

.proj-card{
  display:block;
  color:inherit;
  background:#e9e9e9;
  border:1px solid rgba(255,255,255,.55);
  border-radius:32px;
  padding:38px 42px 40px;
  text-align:center;
  box-shadow:18px 18px 42px rgba(0,0,0,.12), -18px -18px 42px rgba(255,255,255,.72);
  transition:transform .4s var(--ease), box-shadow .4s var(--ease), border-color .3s, background .3s;
}
body.dark .proj-card{
  background:#171a1f;
  border-color:var(--line-dark);
  box-shadow:18px 18px 42px rgba(0,0,0,.45), -14px -14px 34px rgba(255,255,255,.03);
}
.proj-card:hover{ transform:translateY(-10px) scale(1.01); box-shadow:20px 26px 54px rgba(0,0,0,.16), -18px -18px 42px rgba(255,255,255,.74);}
body.dark .proj-card:hover{ box-shadow:0 24px 50px rgba(0,0,0,.55);}

.proj-thumb{
  aspect-ratio:16 / 9;
  background:var(--card-light);
  border-radius:10px;
  overflow:hidden;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.04);
}
.proj-thumb img{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
  object-position:top center;
}
.proj-body{
  padding:42px 18px 0;
  display:flex;
  flex-direction:column;
  align-items:center;
}
.proj-body h3{
  margin:0 0 12px;
  font-size:clamp(1.8rem, 4vw, 2.35rem);
  line-height:1.08;
  font-weight:800;
  color:#4b4d50;
}
.proj-body p{
  margin:0 0 34px;
  color:#8a8a8a;
  font-size:clamp(1.05rem, 2vw, 1.35rem);
  font-weight:700;
}
body.dark .proj-body p{color:var(--muted-dark);}
.proj-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:54px;
  padding:0 34px;
  border-radius:var(--radius-pill);
  background:var(--card-light);
  color:var(  --accent-1);
  font-weight:800;
  font-size:1.05rem;
  box-shadow:8px 10px 18px rgba(0,0,0,.16), -8px -8px 16px rgba(255,255,255,.58);
}
body.dark .proj-body h3{ color:var(--text-dark); }
body.dark .proj-link{
  background:var(--card-dark);
  color:#1fb6a6;
  box-shadow:8px 10px 18px rgba(0,0,0,.45), -6px -6px 14px rgba(255,255,255,.04);
}

@media (max-width:640px){
  .proj-card{ padding:24px 22px 30px; border-radius:24px; }
  .proj-body{ padding-top:30px; }
}

.apps-empty{
  text-align:center; padding:60px 20px; color:var(--muted-light);
}
body.dark .apps-empty{color:var(--muted-dark);}

/* ---------- contact page ---------- */
.contact-title{ text-align:center; }
.contact-cards{
  display:flex; gap:20px; justify-content:center; flex-wrap:wrap; margin:46px 0 40px;
}
.contact-card{
  display:flex; align-items:center; gap:16px;
  background:var(--card-light);
  border:1px solid var(--line-light);
  border-radius:20px;
  padding:20px 28px;
  min-width:260px;
  transition:transform .3s var(--ease), border-color .3s;
}
body.dark .contact-card{ background:var(--card-dark); border-color:var(--line-dark);}
.contact-card:hover{ transform:translateY(-4px); border-color:var(--accent-1);}
.contact-card .ic{
  width:44px;height:44px;border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background:rgba(31,182,166,.12);
  color:var(--accent-1); font-size:1.2rem;
}
.contact-card .lbl{ font-size:.72rem; letter-spacing:1.4px; text-transform:uppercase; color:var(--muted-light); font-weight:700;}
body.dark .contact-card .lbl{color:var(--muted-dark);}
.contact-card .val{ font-weight:800; font-size:1.02rem;}

.form-box{ max-width:680px; margin:0 auto; }
.field{
  width:100%;
  padding:18px 22px;
  margin-bottom:18px;
  border-radius:18px;
  border:1px solid var(--line-light);
  background:var(--card-light);
  color:var(--text-light);
  font-family:inherit;
  font-size:.98rem;
  transition:border-color .3s, background .3s;
}
body.dark .field{ background:var(--card-dark); border-color:var(--line-dark); color:var(--text-dark);}
.field:focus{ outline:none; border-color:var(--accent-1); }
textarea.field{ min-height:150px; resize:vertical; font-family:inherit;}

.submit-btn{
  width:100%;
  padding:18px;
  border:none;
  border-radius:18px;
  background:linear-gradient(90deg,var(--accent-2),var(--accent-1));
  color:#fff;
  font-weight:800;
  letter-spacing:1px;
  text-transform:uppercase;
  font-size:.85rem;
  cursor:pointer;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease);
}
.submit-btn:hover{ transform:translateY(-3px); box-shadow:0 14px 30px rgba(31,182,166,.34); }

.form-note{
  text-align:center; margin-top:16px; font-size:.85rem; color:var(--muted-light); min-height:20px;
}
body.dark .form-note{color:var(--muted-dark);}
.form-note.success{ color:var(--accent-1); font-weight:700; }

/* ---------- legal page ---------- */
.legal-box{
  max-width:760px; margin:0 auto;
  background:var(--card-light);
  border:1px solid var(--line-light);
  border-radius:26px;
  padding:50px 48px;
}
body.dark .legal-box{ background:var(--card-dark); border-color:var(--line-dark);}
.legal-box .eff{ text-align:center; font-style:italic; color:var(--muted-light); margin-bottom:40px;}
body.dark .legal-box .eff{color:var(--muted-dark);}
.legal-box h2{ font-size:1.2rem; color:var(--accent-1); margin:34px 0 12px;}
.legal-box h2:first-of-type{margin-top:0;}
.legal-box p, .legal-box li{ color:var(--muted-light); line-height:1.7; font-size:.96rem;}
body.dark .legal-box p, body.dark .legal-box li{color:var(--muted-dark);}
.back-pill{ display:inline-flex; align-items:center; gap:8px; margin-bottom:40px;}

/* ---------- footer ---------- */
footer{ padding:50px 0 60px; text-align:center; }
.foot-pill{
  display:inline-flex; align-items:center; gap:16px;
  padding:12px 24px; border-radius:var(--radius-pill);
  background:var(--card-light);
  border:1px solid var(--line-light);
  font-weight:700; font-size:.9rem;
  margin-bottom:20px;
}
body.dark .foot-pill{ background:var(--card-dark); border-color:var(--line-dark);}

.switch{
  width:46px; height:26px; border-radius:999px;
  background:var(--line-light);
  position:relative; cursor:pointer; border:none;
}
body.dark .switch{ background:var(--accent-1); }
.switch::after{
  content:""; position:absolute; top:3px; left:3px;
  width:20px; height:20px; border-radius:50%;
  background:#fff; transition:transform .3s var(--ease);
  box-shadow:0 2px 6px rgba(0,0,0,.2);
}
body.dark .switch::after{ transform:translateX(20px); }

.foot-links{ display:flex; gap:26px; justify-content:center; flex-wrap:wrap; font-size:.85rem; color:var(--muted-light);}
body.dark .foot-links{color:var(--muted-dark);}
.foot-links a:hover{ color:var(--accent-1); }

@media (max-width:640px){
  .topbar{padding:18px 18px;}
  .pill{padding:10px 16px; font-size:.85rem;}
  .logo{font-size:1.2rem;}
  .stats{gap:32px;}
  .contact-cards{flex-direction:column; align-items:center;}
  .legal-box{padding:34px 24px;}
}