/* =========================================================================
   TECHMANTHAN 4.0 — theme tokens
   Direction: a night-shift PCB / mission-console aesthetic — deep navy
   circuit-board background, electric cyan + amber signal colors (pulled
   straight from the event's own crest), chip-label badges for event codes.
   ========================================================================= */
:root{
  --bg-void:#060b14;
  --bg-panel:#0d1729;
  --bg-panel-2:#101f38;
  --bg-panel-3:#132644;
  --grid-line:rgba(94,224,232,.09);
  --grid-line-strong:rgba(94,224,232,.18);

  --cyan:#4ce0e8;
  --cyan-soft:#a4f3f7;
  --cyan-dim:#1c6e75;
  --gold:#f2b705;
  --gold-soft:#ffd966;
  --crimson:#ef5368;
  --emerald:#37d99a;

  --text-hi:#eef5fa;
  --text-mid:#9fb4c9;
  --text-dim:#5f7488;

  --border:rgba(140,205,224,.16);
  --border-strong:rgba(140,205,224,.32);

  --font-display:'Orbitron', sans-serif;
  --font-head:'Rajdhani', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --radius:14px;
  --shadow-glow:0 0 0 1px var(--border), 0 10px 40px -12px rgba(0,0,0,.7);
}

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

body{
  background:var(--bg-void);
  color:var(--text-mid);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  position:relative;
  overflow-x:hidden;
}

/* circuit grid backdrop, present on every page */
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size:42px 42px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
  pointer-events:none;
  z-index:0;
}

main, header, footer{position:relative; z-index:1;}

h1,h2,h3,h4,h5,h6{color:var(--text-hi); font-family:var(--font-head); font-weight:700; letter-spacing:.01em;}
a{color:var(--cyan); text-decoration:none;}
a:hover{color:var(--gold-soft);}
::selection{background:var(--cyan); color:#031014;}

.container-xxl{max-width:1280px;}

/* ---------------------------------------------------------------------
   Utility text roles
--------------------------------------------------------------------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
  display:inline-flex;
  align-items:center;
  gap:.55rem;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--cyan);display:inline-block;}
.text-mono{font-family:var(--font-mono);}
.text-gold{color:var(--gold)!important;}
.text-cyan{color:var(--cyan)!important;}
.text-dim{color:var(--text-dim)!important;}

.display-wordmark{
  font-family:var(--font-display);
  font-weight:900;
  letter-spacing:.02em;
  line-height:1.02;
  background:linear-gradient(180deg,#ffffff 0%, var(--cyan-soft) 55%, var(--cyan) 100%);
  -webkit-background-clip:text;
  background-clip:text;
 
  filter:drop-shadow(0 0 26px rgba(76,224,232,.35));
}

/* ---------------------------------------------------------------------
   Navbar
--------------------------------------------------------------------- */
.tm-navbar{
  background:rgba(6,11,20,.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.tm-navbar .navbar-brand{
  font-family:var(--font-display);
  font-weight:700;
  color:var(--text-hi);
  font-size:1.05rem;
  letter-spacing:.04em;
  display:flex;
  align-items:center;
  gap:.6rem;
}
.tm-navbar .brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:conic-gradient(from 180deg, var(--cyan), var(--gold), var(--cyan));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display); color:#04121a; font-size:.85rem; font-weight:900;
  box-shadow:0 0 22px rgba(76,224,232,.45);
}
.tm-navbar .nav-link{
  font-family:var(--font-head);
  font-weight:600;
  letter-spacing:.03em;
  color:var(--text-mid)!important;
  padding:.5rem 1rem!important;
  position:relative;
}
.tm-navbar .nav-link.active, .tm-navbar .nav-link:hover{color:var(--text-hi)!important;}
.tm-navbar .nav-link.active::after{
  content:"";position:absolute;left:1rem;right:1rem;bottom:.1rem;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--gold));
}
.btn-signal{
  font-family:var(--font-head); font-weight:700; letter-spacing:.03em;
  background:linear-gradient(135deg,var(--cyan) 0%, #2fb9c4 100%);
  color:#031014; border:none; border-radius:10px; padding:.55rem 1.3rem;
  box-shadow:0 0 0 1px rgba(76,224,232,.4), 0 8px 24px -8px rgba(76,224,232,.55);
  transition:transform .15s ease, box-shadow .15s ease;
}
.btn-signal:hover{transform:translateY(-2px); color:#031014; box-shadow:0 0 0 1px rgba(76,224,232,.6), 0 14px 30px -10px rgba(76,224,232,.7);}
.btn-outline-signal{
  font-family:var(--font-head); font-weight:700; letter-spacing:.03em;
  border:1px solid var(--border-strong); color:var(--text-hi); border-radius:10px; padding:.55rem 1.3rem;
  background:rgba(76,224,232,.04);
}
.btn-outline-signal:hover{border-color:var(--cyan); color:var(--cyan); background:rgba(76,224,232,.08);}

/* ---------------------------------------------------------------------
   Hero
--------------------------------------------------------------------- */
.hero{
  padding:6.5rem 0 4rem;
  position:relative;
}
#circuit-canvas{
  position:absolute; inset:0; width:100%; height:100%;
  opacity:.55;
  pointer-events:none;
}
.hero-inner{position:relative; z-index:2;}
.hero-badge{
  display:inline-flex; align-items:center; gap:.5rem;
  border:1px solid var(--border-strong); border-radius:100px; padding:.4rem .9rem;
  font-family:var(--font-mono); font-size:.75rem; color:var(--cyan-soft);
  background:rgba(76,224,232,.06);
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--emerald); box-shadow:0 0 8px var(--emerald); animation:blink 1.6s infinite;}
@keyframes blink{50%{opacity:.25;}}

.hero h1{font-size:clamp(2.6rem, 6vw, 5rem);}
.hero .lead{color:var(--text-mid); font-size:1.15rem; max-width:640px;}

/* console readout / countdown */
.console{
  background:linear-gradient(180deg, var(--bg-panel) 0%, var(--bg-panel-2) 100%);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-glow);
  padding:1.4rem 1.5rem;
}
.console-head{
  display:flex; align-items:center; justify-content:space-between;
  font-family:var(--font-mono); font-size:.7rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--text-dim); margin-bottom:1rem;
}
.console-head .lights span{display:inline-block; width:7px; height:7px; border-radius:50%; margin-left:5px;}
.countdown{display:grid; grid-template-columns:repeat(4,1fr); gap:.6rem;}
.countdown .cell{
  background:var(--bg-void); border:1px solid var(--border); border-radius:10px;
  text-align:center; padding:.75rem .3rem;
}
.countdown .num{
  font-family:var(--font-display); font-size:1.9rem; color:var(--cyan-soft);
  text-shadow:0 0 18px rgba(76,224,232,.5);
}
.countdown .unit{font-family:var(--font-mono); font-size:.62rem; letter-spacing:.15em; color:var(--text-dim); text-transform:uppercase;}

/* ---------------------------------------------------------------------
   Panels / cards
--------------------------------------------------------------------- */
.panel{
  background:linear-gradient(180deg, var(--bg-panel) 0%, var(--bg-panel-2) 100%);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-glow);
}
.panel-tight{padding:1.5rem;}

.stat-card{
  background:var(--bg-panel); border:1px solid var(--border); border-radius:var(--radius);
  padding:1.4rem; text-align:center; height:100%;
}
.stat-card .num{font-family:var(--font-display); font-size:2.3rem; color:var(--text-hi);}
.stat-card .num .accent{color:var(--gold);}
.stat-card .lab{font-family:var(--font-mono); font-size:.68rem; letter-spacing:.14em; text-transform:uppercase; color:var(--text-dim);}

/* category chip nav (terminal tabs) */
.cat-tabs{display:flex; flex-wrap:wrap; gap:.6rem;}
.cat-tab{
  font-family:var(--font-head); font-weight:700; letter-spacing:.02em;
  border:1px solid var(--border); background:var(--bg-panel); color:var(--text-mid);
  border-radius:10px; padding:.55rem 1.1rem; cursor:pointer; font-size:.92rem;
  display:flex; align-items:center; gap:.5rem;
}
.cat-tab .chip-code{font-family:var(--font-mono); font-size:.72rem; color:var(--cyan);}
.cat-tab.active, .cat-tab:hover{border-color:var(--cyan); color:var(--text-hi); background:rgba(76,224,232,.08);}
.cat-tab.active{box-shadow:inset 0 0 0 1px var(--cyan);}

/* event / chip badge for codes like A1, D3, EF2 */
.chip-badge{
  font-family:var(--font-mono); font-weight:700; font-size:.78rem;
  color:#04121a; background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  border-radius:8px; padding:.28rem .55rem; letter-spacing:.03em;
  box-shadow:0 4px 14px -4px rgba(242,183,5,.55);
  display:inline-block;
}
.chip-badge.cy{background:linear-gradient(135deg,var(--cyan-soft),var(--cyan)); box-shadow:0 4px 14px -4px rgba(76,224,232,.55);}

.pill{
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.06em; text-transform:uppercase;
  border:1px solid var(--border-strong); border-radius:100px; padding:.22rem .6rem; color:var(--text-mid);
}
.pill.online{color:var(--emerald); border-color:rgba(55,217,154,.4); background:rgba(55,217,154,.08);}
.pill.offline{color:var(--crimson); border-color:rgba(239,83,104,.4); background:rgba(239,83,104,.08);}
.pill.hybrid{color:var(--gold); border-color:rgba(242,183,5,.4); background:rgba(242,183,5,.08);}

/* event card — datasheet look */
.event-card{
  background:var(--bg-panel); border:1px solid var(--border); border-radius:var(--radius);
  padding:1.35rem; height:100%; display:flex; flex-direction:column; gap:.75rem;
  transition:border-color .15s ease, transform .15s ease;
  position:relative; overflow:hidden;
}
.event-card::before{
  content:""; position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--gold));
  opacity:0; transition:opacity .15s ease;
}
.event-card:hover{border-color:var(--border-strong); transform:translateY(-3px);}
.event-card:hover::before{opacity:1;}
.event-card h3{font-size:1.15rem; margin:0;}
.event-card .subtitle{color:var(--text-dim); font-size:.85rem; margin-top:-.4rem;}
.event-card .meta{display:flex; flex-wrap:wrap; gap:.4rem; align-items:center;}
.event-card .desc{font-size:.88rem; color:var(--text-mid); flex-grow:1;}
.event-card .card-foot{display:flex; align-items:center; justify-content:space-between; border-top:1px solid var(--border); padding-top:.75rem; margin-top:auto;}

/* judging meter bars */
.meter-row{display:flex; align-items:center; gap:.75rem; margin-bottom:.55rem;}
.meter-row .label{flex:0 0 230px; font-size:.82rem; color:var(--text-mid);}
.meter-row .track{flex:1; height:8px; border-radius:6px; background:var(--bg-void); border:1px solid var(--border); overflow:hidden;}
.meter-row .fill{height:100%; background:linear-gradient(90deg,var(--cyan),var(--gold));}
.meter-row .pts{flex:0 0 42px; text-align:right; font-family:var(--font-mono); color:var(--gold-soft); font-size:.82rem;}

.rule-list{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:.55rem;}
.rule-list li{padding-left:1.4rem; position:relative; font-size:.92rem; color:var(--text-mid);}
.rule-list li::before{content:"›"; position:absolute; left:0; color:var(--cyan); font-family:var(--font-mono); font-weight:700;}

/* detail spec table */
.spec-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:1px; background:var(--border); border:1px solid var(--border); border-radius:12px; overflow:hidden;}
.spec-grid .spec{background:var(--bg-panel); padding:.9rem 1rem;}
.spec-grid .spec .k{font-family:var(--font-mono); font-size:.65rem; letter-spacing:.12em; text-transform:uppercase; color:var(--text-dim); margin-bottom:.25rem;}
.spec-grid .spec .v{color:var(--text-hi); font-weight:600; font-size:.95rem;}

/* section headers */
.section-pad{padding:4.5rem 0;}
.section-title{font-size:clamp(1.7rem,3vw,2.4rem);}

hr.divider{border-color:var(--border); opacity:1;}

/* footer */
.tm-footer{
  border-top:1px solid var(--border);
  background:linear-gradient(180deg, transparent, rgba(76,224,232,.03));
  padding:3rem 0 1.5rem;
  font-size:.9rem;
}
.tm-footer a{color:var(--text-mid);}
.tm-footer a:hover{color:var(--cyan);}

/* results page */
.results-table{width:100%; border-collapse:separate; border-spacing:0; font-size:.92rem;}
.results-table thead th{
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--text-dim); border-bottom:1px solid var(--border); padding:.7rem .9rem; text-align:left;
}
.results-table tbody td{padding:.75rem .9rem; border-bottom:1px solid var(--border); color:var(--text-mid);}
.results-table tbody tr:hover{background:rgba(76,224,232,.04);}
.rank-badge{font-family:var(--font-mono); font-weight:700; border-radius:8px; padding:.2rem .55rem; font-size:.78rem;}
.rank-badge.r1{background:rgba(242,183,5,.15); color:var(--gold-soft); border:1px solid rgba(242,183,5,.4);}
.rank-badge.r2{background:rgba(159,180,201,.15); color:#cfd9e3; border:1px solid rgba(159,180,201,.4);}
.rank-badge.r3{background:rgba(239,83,104,.12); color:#ff8f9d; border:1px solid rgba(239,83,104,.35);}
.rank-badge.rp{background:rgba(76,224,232,.1); color:var(--cyan-soft); border:1px solid rgba(76,224,232,.35);}

.empty-console{
  border:1px dashed var(--border-strong); border-radius:var(--radius); padding:3rem 1.5rem;
  text-align:center; color:var(--text-dim); font-family:var(--font-mono); font-size:.9rem;
}
.empty-console .blip{width:8px;height:8px;border-radius:50%;background:var(--cyan); display:inline-block; margin-right:.4rem; box-shadow:0 0 10px var(--cyan); animation:blink 1.4s infinite;}

/* modal overrides */
.modal-content{background:var(--bg-panel-2); border:1px solid var(--border-strong); border-radius:var(--radius); color:var(--text-mid);}
.modal-header, .modal-footer{border-color:var(--border);}
.btn-close{filter:invert(1) grayscale(1);}

/* forms */
.form-control, .form-select{
  background:var(--bg-void); border:1px solid var(--border); color:var(--text-hi);
  border-radius:9px; font-family:var(--font-body);
}
.form-control:focus, .form-select:focus{
  background:var(--bg-void); color:var(--text-hi); border-color:var(--cyan);
  box-shadow:0 0 0 .2rem rgba(76,224,232,.18);
}
.form-control::placeholder{color:var(--text-dim);}
label{font-family:var(--font-head); font-weight:600; color:var(--text-mid); font-size:.9rem;}

/* accessibility: visible focus + reduced motion */
a:focus-visible, button:focus-visible, .cat-tab:focus-visible{
  outline:2px solid var(--cyan); outline-offset:2px;
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important;}
}

@media (max-width:767px){
  .meter-row .label{flex-basis:150px; font-size:.76rem;}
  .countdown{grid-template-columns:repeat(4,1fr);}
  .hero{padding:5rem 0 2.5rem;}
}