/* =====================================================================
   TIECONIC — dark modern gradient theme
   ===================================================================== */

:root{
  --bg:#07080d;
  --bg-2:#0c0e17;
  --surface:#11131f;
  --surface-2:#161927;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#eef0f7;
  --muted:#9aa1b8;
  --brand:#6d5cff;
  --brand-2:#00d4ff;
  --accent:#ff5c8a;
  --ok:#25c78b;
  --warn:#ffb545;
  --danger:#ff5c6c;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 20px 60px rgba(0,0,0,.45);
  --grad:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  --grad-soft:linear-gradient(135deg,rgba(109,92,255,.18),rgba(0,212,255,.12));
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body::before{
  content:'';
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 500px at 12% -8%,rgba(109,92,255,.22),transparent 60%),
    radial-gradient(760px 460px at 88% 4%,rgba(0,212,255,.15),transparent 62%),
    radial-gradient(700px 500px at 50% 110%,rgba(255,92,138,.10),transparent 60%);
  pointer-events:none;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:'Sora',system-ui,sans-serif;line-height:1.18;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5.2vw,3.7rem);font-weight:800}
h2{font-size:clamp(1.65rem,3.4vw,2.5rem);font-weight:700}
h3{font-size:clamp(1.15rem,2vw,1.4rem);font-weight:600}
p{margin:0 0 1rem}
.muted{color:var(--muted)}
.small{font-size:.87rem}
.center{text-align:center}

.wrap{width:min(var(--maxw),calc(100% - 2.6rem));margin-inline:auto}
section{padding:clamp(3.4rem,7vw,6rem) 0}

.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;z-index:99;background:var(--brand);padding:.6rem 1rem;border-radius:8px}

.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(7,8,13,.72);
  border-bottom:1px solid transparent;
  transition:border-color .25s,background .25s;
}
.site-head.is-stuck{border-bottom-color:var(--line);background:rgba(7,8,13,.92)}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:72px}
.brand{display:flex;align-items:center;gap:.6rem;font-family:'Sora',sans-serif;font-weight:800;font-size:1.16rem;letter-spacing:.02em}
.brand-mark{display:grid;place-items:center}
.site-nav{display:flex;align-items:center;gap:1.6rem;font-size:.95rem;font-weight:500}
.site-nav a{color:var(--muted);transition:color .2s;position:relative}
.site-nav a:hover,.site-nav a.is-active{color:var(--text)}
.site-nav a.is-active::after{content:'';position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--grad);border-radius:2px}
.site-nav a.btn::after{display:none}
.nav-toggle{display:none;background:none;border:0;padding:.5rem;cursor:pointer;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--text);border-radius:2px;transition:.25s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:900px){
  .nav-toggle{display:flex}
  .site-nav{
    position:absolute;top:72px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg-2);border-bottom:1px solid var(--line);
    padding:.5rem 1.3rem 1.3rem;
    display:none;
  }
  .site-nav.is-open{display:flex}
  .site-nav a{padding:.85rem 0;border-bottom:1px solid var(--line)}
  .site-nav a.btn{margin-top:.9rem;text-align:center;border-bottom:0}
  .site-nav a.is-active::after{display:none}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.82rem 1.5rem;border-radius:999px;border:1px solid var(--line-strong);
  font-weight:600;font-size:.95rem;cursor:pointer;
  transition:transform .18s,box-shadow .18s,background .18s,border-color .18s;
  background:transparent;color:var(--text);font-family:inherit;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--grad);border-color:transparent;color:#06070c;box-shadow:0 10px 30px rgba(109,92,255,.32)}
.btn-primary:hover{box-shadow:0 16px 40px rgba(109,92,255,.45)}
.btn-ghost:hover{border-color:var(--brand-2);background:rgba(255,255,255,.04)}
.btn-sm{padding:.55rem 1.1rem;font-size:.88rem}
.btn-block{width:100%}

/* ---------- hero ---------- */
.hero{padding-top:clamp(3rem,7vw,5.5rem);padding-bottom:clamp(3rem,7vw,5rem);position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center}
@media(max-width:960px){.hero-grid{grid-template-columns:1fr;gap:2.4rem}}
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.42rem .95rem;border-radius:999px;
  border:1px solid var(--line-strong);background:var(--grad-soft);
  font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#cfd4ea;
  margin-bottom:1.2rem;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(37,199,139,.18)}
.hero p.lead{font-size:1.1rem;color:var(--muted);max-width:56ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.hero-stats{display:flex;flex-wrap:wrap;gap:2.2rem;margin-top:2.8rem;padding-top:1.8rem;border-top:1px solid var(--line)}
.hero-stats .num{font-family:'Sora',sans-serif;font-size:1.9rem;font-weight:800;line-height:1}
.hero-stats .lbl{font-size:.82rem;color:var(--muted);margin-top:.3rem}

.hero-visual{position:relative}
.code-card{
  background:linear-gradient(160deg,var(--surface),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);overflow:hidden;
}
.code-head{display:flex;align-items:center;gap:.45rem;padding:.85rem 1.1rem;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.code-head i{width:11px;height:11px;border-radius:50%;display:block}
.code-head i:nth-child(1){background:#ff5f57}.code-head i:nth-child(2){background:#febc2e}.code-head i:nth-child(3){background:#28c840}
.code-head span{margin-left:.6rem;font-size:.8rem;color:var(--muted)}
.code-body{padding:1.2rem 1.3rem;font-family:'SFMono-Regular',Consolas,monospace;font-size:.82rem;line-height:1.85;overflow-x:auto}
.code-body .k{color:#c792ea}.code-body .s{color:#9be8a8}.code-body .c{color:#6b7392}.code-body .f{color:#82d8ff}

.float-badge{
  position:absolute;right:-10px;bottom:-18px;
  background:var(--surface-2);border:1px solid var(--line-strong);
  border-radius:14px;padding:.8rem 1.05rem;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:.7rem;font-size:.86rem;
}
@media(max-width:520px){.float-badge{position:static;margin-top:1rem}}

/* ---------- marquee ---------- */
.strip{border-block:1px solid var(--line);padding:1.1rem 0;overflow:hidden;background:rgba(255,255,255,.015)}
.strip-track{display:flex;gap:3rem;white-space:nowrap;animation:slide 28s linear infinite;font-family:'Sora',sans-serif;font-weight:600;color:var(--muted);font-size:.95rem}
.strip-track span{opacity:.7}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.strip-track{animation:none}}

/* ---------- section heads ---------- */
.sec-head{max-width:64ch;margin-bottom:2.6rem}
.sec-head.center{margin-inline:auto}
.sec-head .kicker{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--brand-2);margin-bottom:.6rem}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:1.4rem}
.grid-3{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}

.card{
  background:linear-gradient(160deg,var(--surface),rgba(12,14,23,.9));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:1.6rem;transition:transform .25s,border-color .25s,box-shadow .25s;
  position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.card .icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid var(--line-strong);margin-bottom:1rem;font-size:1.3rem;
}

/* project cards */
.pcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.pcard:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.pcard-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.pcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.pcard:hover .pcard-media img{transform:scale(1.06)}
.pcard-body{padding:1.2rem 1.3rem 1.4rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.pcard-body h3{margin:0;font-size:1.12rem}
.pill{
  display:inline-block;padding:.24rem .68rem;border-radius:999px;
  font-size:.72rem;font-weight:600;letter-spacing:.04em;
  background:var(--grad-soft);border:1px solid var(--line-strong);color:#cfd4ea;
}
.pill-float{position:absolute;top:.8rem;left:.8rem;background:rgba(7,8,13,.82);backdrop-filter:blur(6px)}
.tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.3rem}
.tag{font-size:.72rem;padding:.2rem .55rem;border-radius:6px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted)}
.pcard .more{margin-top:auto;padding-top:.8rem;font-weight:600;font-size:.9rem;color:var(--brand-2)}

/* team cards */
.tcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;text-align:center;transition:transform .25s,border-color .25s,box-shadow .25s;
}
.tcard:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.tcard-media{aspect-ratio:1;overflow:hidden;background:var(--bg-2)}
.tcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tcard:hover .tcard-media img{transform:scale(1.05)}
.tcard-body{padding:1.1rem 1rem 1.3rem}
.tcard-body h3{margin:0 0 .15rem;font-size:1.05rem}
.tcard-role{font-size:.85rem;color:var(--brand-2);font-weight:600}
.tcard-bio{font-size:.85rem;color:var(--muted);margin:.6rem 0 0}
.tcard-social{display:flex;justify-content:center;gap:.7rem;margin-top:.85rem;font-size:.8rem}
.tcard-social a{color:var(--muted)}
.tcard-social a:hover{color:var(--brand-2)}

/* ---------- filters ---------- */
.filters{display:flex;flex-wrap:wrap;gap:.55rem;margin-bottom:2rem}
.filters a{
  padding:.5rem 1.1rem;border-radius:999px;border:1px solid var(--line);
  font-size:.88rem;color:var(--muted);transition:.2s;
}
.filters a:hover{border-color:var(--line-strong);color:var(--text)}
.filters a.is-active{background:var(--grad);color:#06070c;border-color:transparent;font-weight:600}

/* ---------- project detail ---------- */
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:1.2rem}
.crumbs a:hover{color:var(--brand-2)}
.detail-grid{display:grid;grid-template-columns:1.6fr .9fr;gap:2.5rem;align-items:start}
@media(max-width:900px){.detail-grid{grid-template-columns:1fr}}
.meta-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem;position:sticky;top:96px}
@media(max-width:900px){.meta-box{position:static}}
.meta-row{display:flex;justify-content:space-between;gap:1rem;padding:.65rem 0;border-bottom:1px solid var(--line);font-size:.9rem}
.meta-row:last-of-type{border-bottom:0}
.meta-row span:first-child{color:var(--muted)}
.prose{color:#d3d8ea}
.prose h2,.prose h3{margin-top:1.8rem}
.prose ul{padding-left:1.2rem}
.prose li{margin-bottom:.4rem}

.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.9rem;margin-top:1.6rem}
.gallery button{
  padding:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:var(--bg-2);cursor:pointer;aspect-ratio:4/3;transition:transform .2s,border-color .2s;
}
.gallery button:hover{transform:scale(1.02);border-color:var(--brand-2)}
.gallery img{width:100%;height:100%;object-fit:cover}

.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(4,5,9,.94);
  display:none;place-items:center;padding:2rem;
}
.lightbox.is-open{display:grid}
.lightbox img{max-width:min(1100px,92vw);max-height:82vh;object-fit:contain;border-radius:12px}
.lightbox .lb-close{position:absolute;top:1.2rem;right:1.4rem;font-size:1.8rem;background:none;border:0;color:#fff;cursor:pointer}
.lightbox .lb-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.08);border:1px solid var(--line-strong);color:#fff;width:46px;height:46px;border-radius:50%;font-size:1.4rem;cursor:pointer}
.lightbox .lb-prev{left:1.2rem}.lightbox .lb-next{right:1.2rem}
.lightbox .lb-count{position:absolute;bottom:1.4rem;left:50%;transform:translateX(-50%);color:var(--muted);font-size:.88rem}

/* ---------- forms ---------- */
.field{margin-bottom:1.05rem}
.field label{display:block;font-size:.87rem;font-weight:600;margin-bottom:.4rem;color:#c8cee4}
.field .hint{font-size:.78rem;color:var(--muted);margin-top:.3rem}
input[type=text],input[type=email],input[type=url],input[type=password],input[type=number],input[type=date],input[type=search],select,textarea{
  width:100%;padding:.78rem .95rem;border-radius:11px;
  background:var(--bg-2);border:1px solid var(--line);color:var(--text);
  font-family:inherit;font-size:.94rem;transition:border-color .2s,box-shadow .2s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(109,92,255,.18)}
textarea{min-height:130px;resize:vertical}
input[type=file]{width:100%;padding:.7rem;border-radius:11px;background:var(--bg-2);border:1px dashed var(--line-strong);color:var(--muted);font-size:.88rem}
.form-2{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}
@media(max-width:620px){.form-2{grid-template-columns:1fr}}

.alert{padding:.9rem 1.1rem;border-radius:12px;margin-bottom:1.2rem;font-size:.92rem;border:1px solid}
.alert-success{background:rgba(37,199,139,.12);border-color:rgba(37,199,139,.4);color:#8ff0c8}
.alert-error{background:rgba(255,92,108,.12);border-color:rgba(255,92,108,.4);color:#ffb3ba}
.alert-info{background:rgba(0,212,255,.1);border-color:rgba(0,212,255,.35);color:#a8e9ff}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--grad-soft);border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);padding:clamp(2rem,5vw,3.4rem);text-align:center;
}
.cta-band h2{margin-bottom:.6rem}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--line);background:rgba(0,0,0,.28);padding-top:3.4rem;margin-top:2rem}
.foot-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:2rem;padding-bottom:2.6rem}
@media(max-width:980px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}}
.foot-col h4{font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:1rem}
.foot-col a{display:block;color:#c2c8dd;font-size:.9rem;padding:.28rem 0;transition:color .2s}
.foot-col a:hover{color:var(--brand-2)}
.foot-brand .brand{margin-bottom:.9rem}
.foot-brand p{font-size:.9rem;max-width:40ch}
.foot-social{display:flex;gap:1rem;margin-top:.9rem;font-size:.85rem}
.foot-social a{display:inline;color:var(--muted)}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem;padding:1.2rem 0;border-top:1px solid var(--line);font-size:.85rem;color:var(--muted)}
.foot-bottom p{margin:0}
.foot-bottom a:hover{color:var(--brand-2)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

.empty{
  text-align:center;padding:3.5rem 1rem;border:1px dashed var(--line-strong);
  border-radius:var(--radius);color:var(--muted);
}

.pagination{display:flex;gap:.4rem;justify-content:center;margin-top:2.5rem;flex-wrap:wrap}
.pagination a,.pagination span{padding:.5rem .9rem;border-radius:10px;border:1px solid var(--line);font-size:.9rem;color:var(--muted)}
.pagination a:hover{border-color:var(--line-strong);color:var(--text)}
.pagination .is-active{background:var(--grad);color:#06070c;border-color:transparent;font-weight:600}

/* ---------- visitor counter ---------- */
.visit-count{display:inline-flex;align-items:center;gap:.45rem;font-variant-numeric:tabular-nums}
.visit-dot{
  width:7px;height:7px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 0 3px rgba(37,199,139,.18);
  animation:visitPulse 2.4s ease-in-out infinite;
}
@keyframes visitPulse{0%,100%{opacity:1}50%{opacity:.35}}
@media(prefers-reduced-motion:reduce){.visit-dot{animation:none}}