/* ============================================================
   Yee Tech — shared theme
   ============================================================ */
:root{
  /* Charcoal · Crimson · Off-white */
  --bg:#161519;
  --bg-2:#1d1c22;
  --red:#dc143c;        /* crimson */
  --red-soft:#ff5470;
  --ember:#e8dcc6;      /* off-white / cream accent */
  /* legacy aliases — existing var(--green/--green-soft/--gold) references now resolve to crimson/cream */
  --green:var(--red);
  --green-soft:var(--red-soft);
  --gold:var(--ember);
  --teal:#26252b;
  --text:#f1ece1;       /* off-white */
  --muted:#9b9ba6;      /* charcoal grey */
  --card:rgba(31,30,36,0.58);
  --card-2:rgba(24,23,28,0.82);
  --card-border:rgba(220,20,60,0.26);
  --glow:0 0 40px rgba(220,20,60,0.30);
  --danger:#ff6b6b;
  --warn:#e8c07a;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI",system-ui,-apple-system,sans-serif;
  background:radial-gradient(ellipse at 50% -10%,#2c1820 0%,var(--bg) 55%,#0b0b0e 100%);
  color:var(--text);
  overflow-x:hidden;
  line-height:1.6;
  min-height:100vh;
}
a{color:inherit}

/* 3D canvas + overlays */
#dna-canvas{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;display:block}
.vignette{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(ellipse at center,transparent 38%,rgba(2,11,8,0.7) 100%)}
.content{position:relative;z-index:2}

/* NAV */
nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 6vw;
  backdrop-filter:blur(10px);
  background:linear-gradient(to bottom,rgba(3,17,13,0.78),transparent);
}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.5px;text-decoration:none;color:var(--text)}
.brand .dot{width:14px;height:14px;border-radius:50%;background:var(--green);
  box-shadow:0 0 14px var(--green),0 0 28px var(--green);animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.25);opacity:.7}}
.brand span{font-size:1.05rem}
.brand small{color:var(--muted);font-weight:400;display:block;font-size:.62rem;letter-spacing:3px;text-transform:uppercase}
.nav-links{display:flex;gap:26px;font-size:.9rem;align-items:center}
.nav-links a{color:var(--muted);text-decoration:none;transition:color .25s}
.nav-links a:hover,.nav-links a.active{color:var(--green)}
.nav-cta{padding:9px 20px;border-radius:30px;background:var(--green);color:#03130d !important;font-weight:600;box-shadow:var(--glow)}
@media(max-width:820px){.nav-links a:not(.nav-cta){display:none}}

/* buttons */
.btn{padding:14px 30px;border-radius:40px;font-size:.95rem;font-weight:600;text-decoration:none;cursor:pointer;
  transition:transform .2s,box-shadow .2s;border:none;display:inline-block}
.btn-primary{background:var(--green);color:#03130d;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 50px rgba(39,255,186,0.55)}
.btn-ghost{background:transparent;color:var(--green-soft);border:1px solid var(--card-border)}
.btn-ghost:hover{border-color:var(--green);transform:translateY(-3px)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* page header */
.page-head{padding:140px 6vw 30px;max-width:1000px}
.eyebrow{color:var(--green);letter-spacing:6px;text-transform:uppercase;font-size:.72rem;margin-bottom:18px}
.page-head h1{font-size:clamp(2.2rem,5.5vw,4rem);font-weight:800;line-height:1.08;
  background:linear-gradient(120deg,#fff 0%,var(--green-soft) 50%,var(--green) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.page-head h1 em{font-style:normal}
.page-head p.lead{max-width:680px;margin-top:18px;color:var(--text);opacity:.9;font-size:clamp(1rem,2vw,1.18rem)}

/* generic card */
.card{background:var(--card);border:1px solid var(--card-border);border-radius:24px;padding:34px;
  backdrop-filter:blur(14px);box-shadow:var(--glow),inset 0 0 40px rgba(39,255,186,0.04)}
.glass{background:var(--card-2);border:1px solid var(--card-border);border-radius:20px;backdrop-filter:blur(14px)}

/* tool / demo shell */
.demo-wrap{padding:30px 6vw 60px;max-width:1180px;margin:0 auto}
.demo-grid{display:grid;gap:22px}
@media(min-width:900px){.demo-grid.two{grid-template-columns:1fr 1fr}}
.panel{padding:26px 28px}
.panel h3{font-size:1.15rem;margin-bottom:6px;color:#fff}
.panel .sub{color:var(--muted);font-size:.85rem;margin-bottom:18px}

.section-title{padding:78px 6vw 10px;max-width:1180px;margin:0 auto;font-size:1.6rem;font-weight:700;color:#fff;letter-spacing:-0.01em}
.section-title .accent{color:var(--green)}

/* chips */
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:30px;
  border:1px solid var(--card-border);background:rgba(39,255,186,0.06);font-size:.85rem;cursor:pointer;
  transition:all .2s;color:var(--text);margin:4px}
.chip:hover{border-color:var(--green);background:rgba(39,255,186,0.14)}
.chip .ic{font-size:1rem}

/* flow nodes */
.flow{display:flex;flex-direction:column;gap:0;margin-top:10px}
.node{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:14px;
  border:1px solid var(--card-border);background:rgba(8,32,26,0.6);position:relative;animation:popIn .3s ease}
.node.trigger{border-color:rgba(255,224,138,0.4)}
.node.action{border-color:rgba(39,255,186,0.35)}
.node .badge{font-size:.62rem;letter-spacing:2px;text-transform:uppercase;padding:3px 8px;border-radius:20px}
.node.trigger .badge{background:rgba(255,224,138,0.15);color:var(--gold)}
.node.action .badge{background:rgba(39,255,186,0.13);color:var(--green)}
.node .label{flex:1;font-size:.95rem}
.node .x{cursor:pointer;color:var(--muted);font-size:1.1rem;line-height:1}
.node .x:hover{color:var(--danger)}
.connector{width:2px;height:22px;background:linear-gradient(var(--green),transparent);margin-left:32px}
.node.running{box-shadow:0 0 0 2px var(--green),0 0 24px rgba(39,255,186,0.5)}
.node.done::after{content:"✓";position:absolute;right:42px;color:var(--green);font-weight:700}
@keyframes popIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* log / feed */
.feed{font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;font-size:.82rem;
  max-height:340px;overflow-y:auto;display:flex;flex-direction:column;gap:6px}
.feed .line{padding:7px 10px;border-radius:8px;background:rgba(0,0,0,0.25);border-left:2px solid var(--green);
  animation:popIn .25s ease}
.feed .line .t{color:var(--muted);margin-right:8px}
.feed .line.warn{border-left-color:var(--warn)}
.feed .line.act{border-left-color:var(--green-soft)}
.feed .line.decide{border-left-color:var(--gold)}

/* agent cards */
.agents{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.agent{padding:20px;border-radius:18px;border:1px solid var(--card-border);background:var(--card-2)}
.agent .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.agent .name{font-weight:700}
.status-dot{width:9px;height:9px;border-radius:50%;display:inline-block;margin-right:6px}
.status-dot.idle{background:var(--muted)}
.status-dot.sensing{background:var(--gold);box-shadow:0 0 10px var(--gold)}
.status-dot.acting{background:var(--green);box-shadow:0 0 10px var(--green)}
.agent .state{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:1px}
.agent .metric{font-size:1.8rem;font-weight:800;color:var(--green)}
.agent .metric small{font-size:.7rem;color:var(--muted);letter-spacing:1px;display:block;font-weight:400}
.bar{height:6px;border-radius:6px;background:rgba(255,255,255,0.08);overflow:hidden;margin-top:12px}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--green-soft),var(--green));transition:width .5s}

/* inputs */
input[type=text],textarea,select{width:100%;padding:13px 16px;border-radius:12px;background:rgba(0,0,0,0.3);
  border:1px solid var(--card-border);color:var(--text);font-size:.95rem;font-family:inherit;outline:none}
input[type=text]:focus,textarea:focus{border-color:var(--green)}
label.fld{display:block;font-size:.78rem;color:var(--muted);letter-spacing:1px;text-transform:uppercase;margin:14px 0 6px}

/* step list (optimizer) */
.steps{display:flex;flex-direction:column;gap:10px;margin-top:10px}
.step{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:12px;background:rgba(8,32,26,0.6);
  border:1px solid var(--card-border)}
.step .nm{flex:1}
.step .mins{color:var(--muted);font-size:.85rem;min-width:70px;text-align:right}
.step.bottleneck{border-color:rgba(255,122,122,0.5);background:rgba(255,122,122,0.08)}
.step.bottleneck .mins{color:var(--danger)}
.step .tag{font-size:.6rem;letter-spacing:1px;text-transform:uppercase;padding:2px 7px;border-radius:20px;
  background:rgba(255,122,122,0.18);color:var(--danger)}
.step .tag.opt{background:rgba(39,255,186,0.15);color:var(--green)}

/* result bars */
.compare{display:flex;flex-direction:column;gap:18px;margin-top:18px}
.compare .row .cap{display:flex;justify-content:space-between;font-size:.85rem;margin-bottom:6px}
.cbar{height:26px;border-radius:8px;overflow:hidden;background:rgba(255,255,255,0.06)}
.cbar>i{display:block;height:100%;border-radius:8px;transition:width 1s ease}
.cbar.before>i{background:linear-gradient(90deg,#ff9a6a,var(--danger))}
.cbar.after>i{background:linear-gradient(90deg,var(--green-soft),var(--green))}

/* metric tiles */
.tiles{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));margin-top:8px}
.tile{padding:22px;border-radius:16px;text-align:center;background:var(--card-2);border:1px solid var(--card-border)}
.tile b{display:block;font-size:2rem;font-weight:800;color:var(--green)}
.tile span{font-size:.74rem;color:var(--muted);letter-spacing:1px}

/* feature lists */
.features{list-style:none;margin-top:8px;display:grid;gap:12px}
.features li{display:flex;align-items:flex-start;gap:12px;font-size:.96rem}
.features li::before{content:"";flex:0 0 auto;margin-top:8px;width:8px;height:8px;border-radius:50%;
  background:var(--green);box-shadow:0 0 10px var(--green)}

/* footer */
footer{text-align:center;padding:50px 6vw;color:var(--muted);font-size:.8rem;border-top:1px solid rgba(39,255,186,0.1);margin-top:40px}
footer .brand{justify-content:center;margin-bottom:10px;display:inline-flex}

/* tabs */
.tabbar{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;max-width:1180px;margin:0 auto 6px;padding:12px 6vw 0;position:sticky;top:66px;z-index:30}
.tabpanel{padding-top:8px}

/* AI assistant chat */
.chat-out{margin-top:18px;min-height:170px;max-height:360px;overflow-y:auto;display:flex;flex-direction:column;gap:12px;
  background:rgba(0,0,0,0.24);border:1px solid var(--card-border);border-radius:14px;padding:16px}
.chat-msg{max-width:88%;padding:11px 15px;border-radius:13px;font-size:.95rem;line-height:1.5;white-space:pre-wrap}
.chat-msg.user{align-self:flex-end;background:rgba(220,20,60,0.14);border:1px solid var(--card-border);color:var(--text)}
.chat-msg.bot{align-self:flex-start;background:rgba(255,255,255,0.05);border:1px solid var(--card-border);color:var(--text)}
.chat-input{display:flex;gap:10px;margin-top:14px}
.chat-input input{flex:1}

/* roadmap checklist */
.rm-add{display:flex;gap:10px;margin-top:14px}
.rm-add input{flex:1}
.rm-list{margin-top:14px;display:flex;flex-direction:column;gap:8px;max-height:320px;overflow-y:auto}
.rm-item{display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:11px;background:rgba(0,0,0,0.2);border:1px solid var(--card-border)}
.rm-item .rm-check{width:22px;height:22px;border-radius:6px;border:1px solid var(--card-border);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--green);font-size:.78rem;flex:none}
.rm-item.done .rm-check{background:rgba(220,20,60,0.18);border-color:var(--red)}
.rm-item .rm-text{flex:1;font-size:.93rem;cursor:pointer}
.rm-item.done .rm-text{text-decoration:line-through;color:var(--muted)}
.rm-item .rm-x{color:var(--muted);cursor:pointer;font-size:.9rem}
.rm-item .rm-x:hover{color:var(--danger)}
.tab{padding:12px 22px;border-radius:30px;border:1px solid var(--card-border);background:rgba(8,32,26,.7);
  color:var(--muted);font-family:inherit;font-size:.92rem;cursor:pointer;transition:all .2s;backdrop-filter:blur(10px)}
.tab:hover{color:var(--green);border-color:var(--green)}
.tab.active{background:var(--green);color:#03130d;font-weight:700;box-shadow:var(--glow);border-color:var(--green)}
.tabpanel{animation:popIn .35s ease}
.tabpanel.hidden{display:none}

.controls{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px;align-items:center}
.muted{color:var(--muted)}
.tiny{font-size:.78rem}
.pill-row{display:flex;flex-wrap:wrap;margin:6px -4px}

/* inline SVG icons (custom graphics — replace emojis) */
.svg-ic{width:1.05em;height:1.05em;display:inline-block;vertical-align:-0.16em;flex:none;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab .svg-ic{margin-right:8px;color:var(--red)}
.tab.active .svg-ic{color:#161519}
h3 .svg-ic{margin-right:9px;color:var(--red);vertical-align:-0.12em}
.chip .ic{display:inline-flex;align-items:center;justify-content:center;width:1.1em;height:1.1em;color:var(--red)}
.chip .ic .svg-ic{width:100%;height:100%;margin:0;vertical-align:0}
.agent .name .svg-ic{margin-right:7px;color:var(--red);vertical-align:-0.18em}
.bottleneck-ic{width:14px;height:14px;display:inline-block;vertical-align:-0.18em;margin-right:6px;stroke:var(--danger);fill:none;stroke-width:1.8}

/* ===== 3D pop: reveal-with-depth + tilt ===== */
.reveal{opacity:0;transform:translateY(36px) scale(.98);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.card{transition:box-shadow .3s ease,border-color .3s ease;transform-style:preserve-3d;will-change:transform}
.card:hover{box-shadow:0 18px 60px rgba(0,0,0,.5),0 0 50px rgba(220,20,60,.28);border-color:var(--red)}
.tile,.agent,.step,.chip{transition:transform .2s ease,box-shadow .2s ease}
.tile:hover,.agent:hover{box-shadow:0 10px 30px rgba(0,0,0,.45)}
.section-title{transform:translateZ(0)}
.glint{position:relative;overflow:hidden}

/* ===== guided build plan / roadmap ===== */
.roadmap{max-width:900px;margin:0 auto;padding:8px 6vw 30px}
.step-card{position:relative;margin:0 0 14px}
.step-badge{position:absolute;top:-2px;left:24px;width:50px;height:50px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem;
  font-family:'Century Schoolbook',Cambria,serif;color:#0a0814;box-shadow:0 0 20px rgba(255,255,255,.22);z-index:2}
.step-badge.start{font-size:.62rem;letter-spacing:1px}
.step-card h3{margin-top:4px;font-size:1.3rem}
.step-card .stepsub{color:var(--muted);font-size:.9rem;margin-top:2px}
.rgrid{display:grid;gap:18px;grid-template-columns:1fr;margin-top:16px}
@media(min-width:740px){.rgrid{grid-template-columns:repeat(3,1fr)}}
.rgrid h4{font-size:.68rem;letter-spacing:2px;text-transform:uppercase;color:var(--ember);margin-bottom:6px}
.rgrid p{font-size:.92rem;color:var(--text);opacity:.85}
.step-conn{width:2px;height:22px;margin:0 0 0 48px;background:linear-gradient(var(--card-border),transparent)}
.step-card.focus{outline:none;animation:focusPulse 1.6s ease}
@keyframes focusPulse{0%{box-shadow:0 0 0 2px var(--red),0 0 50px rgba(220,20,60,.55)}100%{box-shadow:var(--glow)}}
.plan-intro{max-width:760px;margin:0 auto 6px;padding:0 6vw;color:var(--muted);text-align:center}