/* ============================================================
   Plumber3D — pipeline tools for Maya/VFX
   Design: dark "viewport" base, amber active-state accent,
   monospace for technical detail, thin pipeline-rail motif.
   ============================================================ */

:root{
  --void:#1c2027;        /* page background — lifted graphite */
  --nav-bg:#14171c;      /* nav stays darker */
  --panel:#1b1f26;       /* raised surfaces */
  --panel-2:#20252e;     /* hover / nested */
  --line:#2a2f38;        /* hairline dividers */
  --line-bright:#3a424e;
  --ink:#e8e6e1;         /* primary text — warm off-white */
  --ink-dim:#9aa2ad;     /* secondary text */
  --ink-faint:#646c78;   /* captions, meta */
  --amber:#d13b32;       /* accent — matches logo wrench red */
  --amber-bright:#e64d43;
  --teal:#4a9d94;        /* secondary accent */
  --danger:#c65d5d;

  --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --display:"Space Grotesk","Inter",sans-serif;

  --maxw:1140px;
  --radius:10px;
  --radius-sm:6px;
}

/* light mode — activated by data-theme="light" on <html> */
html[data-theme="light"]{
  --void:#f6f7f9;        /* page background — soft paper */
  --nav-bg:#ffffff;
  --panel:#ffffff;       /* raised surfaces */
  --panel-2:#eef0f3;     /* hover / nested */
  --line:#e0e3e8;        /* hairline dividers */
  --line-bright:#cdd2da;
  --ink:#1c2128;         /* primary text — near-black */
  --ink-dim:#55606e;     /* secondary text */
  --ink-faint:#8a94a1;   /* captions, meta */
  --amber:#c0332b;       /* accent — logo red, deeper for light bg */
  --amber-bright:#d13b32;
  --teal:#3c8279;
}
html{transition:none}
body,.nav,.card,.pkg,.panel-visual,.side,.stat,.auth-card{
  transition:background-color .2s,border-color .2s,color .2s}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--void);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ---- layout ---- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:56px 0}
.eyebrow{
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--amber);margin:0 0 14px;
}
h1,h2,h3{font-family:var(--display);font-weight:600;line-height:1.12;margin:0}
h1{font-size:clamp(2.4rem,5vw,3.9rem);letter-spacing:-.02em}
h2{font-size:clamp(1.8rem,3.5vw,2.6rem);letter-spacing:-.01em}
h3{font-size:1.25rem}
.lead{font-size:1.15rem;color:var(--ink-dim);max-width:60ch}
.muted{color:var(--ink-dim)}
.faint{color:var(--ink-faint)}
.mono{font-family:var(--mono)}

/* ---- top nav ---- */
.nav{
  position:sticky;top:0;z-index:50;background:rgba(20,23,28,.82);
  background:var(--nav-bg);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.nav .wrap{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);
  font-weight:600;font-size:1.15rem;letter-spacing:-.01em}
.brand-logo{width:38px;height:38px;border-radius:6px;display:block}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--amber);
  box-shadow:0 0 0 4px rgba(224,145,59,.15)}
.nav-links{display:flex;gap:22px;margin-left:8px}
.nav-links a{color:var(--ink-dim);font-size:.94rem;transition:color .15s}
.nav-links a:hover{color:var(--ink)}
.nav-right{margin-left:auto;display:flex;gap:12px;align-items:center}
.theme-toggle{background:none;border:1px solid var(--line-bright);color:var(--ink-dim);
  width:34px;height:34px;border-radius:var(--radius-sm);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  transition:all .15s;padding:0}
.theme-toggle:hover{border-color:var(--ink-faint);color:var(--ink)}
.theme-toggle .sun{display:none}
html[data-theme="light"] .theme-toggle .sun{display:inline}
html[data-theme="light"] .theme-toggle .moon{display:none}

/* ---- buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);
  font-weight:500;font-size:.94rem;padding:10px 18px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;transition:all .15s;white-space:nowrap;
}
.btn-primary{background:var(--amber);color:#fff;font-weight:600}
.btn-primary:hover{background:var(--amber-bright)}
.btn-ghost{border-color:var(--line-bright);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink-faint);background:var(--panel)}
.btn-sm{padding:7px 13px;font-size:.86rem}

/* ---- pipeline rail motif (the signature) ---- */
.rail{display:flex;align-items:center;gap:0;margin:0}
.rail .node{width:10px;height:10px;border-radius:50%;background:var(--panel-2);
  border:1.5px solid var(--line-bright);flex:0 0 auto}
.rail .node.on{background:var(--amber);border-color:var(--amber)}
.rail .seg{height:1.5px;flex:1;background:var(--line-bright)}
.rail .seg.on{background:var(--amber)}

/* ---- hero ---- */
.hero{position:relative;overflow:hidden;padding:64px 0 88px}
.hero-grid{position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 30%,transparent 75%);}
.hero .wrap{position:relative}
.hero-brand{display:flex;align-items:center;justify-content:center;gap:18px;
  margin-bottom:38px}
.hero-logo{width:110px;height:110px;display:block}
.hero-brandname{font-family:var(--display);font-weight:700;color:var(--amber);
  font-size:clamp(4.4rem,10vw,7.5rem);letter-spacing:-.02em;line-height:1}
.hero h1{max-width:16ch}
.hero .hero-h1{max-width:24ch;font-size:clamp(1.9rem,4.5vw,3.2rem);line-height:1.05;
  margin-left:auto;margin-right:auto;text-align:center;color:var(--ink);margin-bottom:120px}

.hero-cols{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:stretch}
.hero-text{display:flex;flex-direction:column}
.hero .hero-lead{text-align:left}
.hero-list{list-style:none;padding:0 0 0 16px;margin:20px 0 0;display:flex;
  flex-direction:column;gap:12px}
.hero-list li{position:relative;padding-left:24px;color:var(--ink-dim);
  font-size:1rem;line-height:1.5}
.hero-list li::before{content:"›";position:absolute;left:4px;top:-1px;
  color:var(--amber);font-weight:700;font-size:1.1rem}
.hero .hero-cta{margin-top:auto;margin-bottom:18px;justify-content:center;
  gap:40px;width:100%;padding-right:40px}

/* gallery */
.hero-gallery{display:flex;flex-direction:column;gap:12px}
.gal-main{position:relative;border:none;border-radius:10px;
  overflow:hidden;background:transparent;cursor:zoom-in;aspect-ratio:16/10;
  display:flex;align-items:center;justify-content:center}
.gal-main img{width:100%;height:100%;object-fit:contain;display:block;background:transparent}
.gal-zoom{position:absolute;bottom:10px;right:10px;font-family:var(--mono);
  font-size:.7rem;color:var(--ink);background:rgba(20,23,28,.75);
  padding:4px 9px;border-radius:5px;pointer-events:none}
.gal-strip{display:flex;gap:8px;overflow-x:hidden;padding-bottom:4px}
.gal-strip::-webkit-scrollbar{display:none}
.gal-strip{scrollbar-width:none}
.gal-thumb{height:52px;width:auto;border:1px solid var(--line);border-radius:5px;
  cursor:pointer;opacity:.55;transition:opacity .15s,border-color .15s;flex:0 0 auto;
  object-fit:cover;object-position:top}
.gal-thumb:hover{opacity:.85}
.gal-thumb.active{opacity:1;border-color:var(--amber)}

/* lightbox */
.lightbox{display:none;position:fixed;inset:0;z-index:200;
  background:rgba(8,10,13,.92);align-items:center;justify-content:center;padding:32px;
  cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:96vw;max-height:92vh;border-radius:8px;
  box-shadow:0 20px 60px rgba(0,0,0,.6)}
.lightbox-close{position:absolute;top:20px;right:28px;font-size:2.4rem;
  color:var(--ink);cursor:pointer;line-height:1}

@media(max-width:820px){
  .hero-cols{grid-template-columns:1fr;gap:32px}
}
.hero-toolbar{margin-top:66px;border:1px solid var(--line);border-radius:8px;
  overflow:hidden;background:var(--panel)}
.hero-toolbar img{width:100%;display:block}
.hero .lead{margin-top:20px;font-size:1.25rem}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-meta{margin-top:44px;display:flex;gap:32px;flex-wrap:wrap;
  font-family:var(--mono);font-size:.82rem;color:var(--ink-faint)}
.hero-meta b{color:var(--ink);font-weight:600}

/* ---- generic grid ---- */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* ---- cards ---- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--line-bright)}
.card h3{margin-bottom:8px}

/* tool node card */
.group-label{font-family:var(--mono);font-size:.78rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink);margin:0 0 20px}
.group-label .faint{text-transform:none;letter-spacing:0;color:var(--ink-faint)}
.tool-grid{align-items:stretch}
.toolshot{display:flex;flex-direction:column;gap:12px;padding:16px}
.toolshot-img{aspect-ratio:16/11;border-radius:7px;overflow:hidden;
  background:#000;display:flex;align-items:center;justify-content:center}
.toolshot-img img{width:100%;height:100%;object-fit:contain;background:#000}
.toolshot .name{font-family:var(--display);font-size:1.15rem;font-weight:600;
  padding:0 4px}
.toolshot .desc{color:var(--ink-dim);font-size:.9rem;flex:1;padding:0 4px 4px}
.toolshot.core{border-color:var(--amber)}
.diagram-thumb{background:var(--void)}
.diagram-thumb svg{width:100%;height:100%}
.core-tag{font-family:var(--mono);font-size:.6rem;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;color:var(--amber);
  border:1px solid var(--amber);border-radius:4px;padding:1px 6px;
  vertical-align:middle;margin-left:6px}
.req{display:inline-block;font-family:var(--mono);font-size:.72rem;
  color:var(--amber);margin-top:4px}

/* ---- package tiers ---- */
.pkg{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;display:flex;flex-direction:column;position:relative}
.pkg.featured{border-color:var(--amber);box-shadow:0 0 0 1px var(--amber)}
.pkg .flag{position:absolute;top:-11px;left:30px;background:var(--amber);
  color:#fff;font-family:var(--mono);font-size:.68rem;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;padding:3px 10px;border-radius:4px}
.pkg .pname{font-family:var(--display);font-size:1.35rem;font-weight:600}
.pkg .price{display:flex;align-items:baseline;gap:6px;margin:16px 0 6px}
.pkg .price .amt{font-family:var(--display);font-size:2.4rem;font-weight:600}
.pkg .price .per{font-family:var(--mono);font-size:.8rem;color:var(--ink-faint)}
.pkg .blurb{color:var(--ink-dim);font-size:.92rem;min-height:42px}
.pkg ul{list-style:none;padding:0;margin:20px 0 24px;display:flex;
  flex-direction:column;gap:11px;flex:1}
.pkg li{display:flex;gap:10px;align-items:flex-start;font-size:.92rem}
.pkg li .ck{color:var(--amber);flex:0 0 auto;margin-top:2px}
.pkg li.off{color:var(--ink-faint)}
.pkg li.off .ck{color:var(--line-bright)}

/* ---- section head ---- */
.shead{margin-bottom:44px;max-width:60ch}
.shead h2{margin-bottom:12px}

/* ---- feature split ---- */
.split{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.panel-visual{background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;font-family:var(--mono);font-size:.82rem}
.panel-visual .row{display:flex;justify-content:space-between;padding:9px 0;
  border-bottom:1px solid var(--line);color:var(--ink-dim)}
.panel-visual .row:last-child{border-bottom:none}
.panel-visual .row .st{color:var(--amber)}
.panel-visual .row .st.done{color:var(--teal)}

/* ---- portal tabs ---- */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:28px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.stat .k{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-faint)}
.stat .v{font-family:var(--display);font-size:2rem;font-weight:600;margin-top:6px}
.stat .v .amber{color:var(--amber)}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th{text-align:left;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink-faint);padding:10px 12px;
  border-bottom:1px solid var(--line)}
td{padding:12px;border-bottom:1px solid var(--line);color:var(--ink-dim)}
td b{color:var(--ink);font-weight:600}
.tabbar{border-bottom:1px solid var(--line);background:var(--panel);
  position:sticky;top:64px;z-index:40}
.tabbar .wrap{display:flex;align-items:center;justify-content:space-between}
.tabs{display:flex;gap:4px}
.tab{background:none;border:none;border-bottom:2px solid transparent;
  color:var(--ink-dim);font-family:var(--sans);font-size:.95rem;font-weight:500;
  padding:16px 18px;cursor:pointer;transition:color .15s,border-color .15s}
.tab:hover{color:var(--ink)}
.tab.active{color:var(--ink);border-bottom-color:var(--amber)}
.tabbar-right{font-size:.82rem;color:var(--ink-faint)}
.tabpane{display:none}
.tabpane.active{display:block}
.seatblock{margin-bottom:32px;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden}
.seatblock-head{padding:14px 16px;background:var(--panel);border-bottom:1px solid var(--line)}
.seatblock table{margin:0}
.assignrow{display:flex;gap:10px;padding:6px 0}
.assignrow input{flex:1;background:var(--void);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:8px 11px;color:var(--ink);font-size:.9rem}
.assignrow input:focus{outline:none;border-color:var(--amber)}
.pill{font-family:var(--mono);font-size:.72rem;padding:3px 9px;border-radius:20px;
  border:1px solid var(--line-bright)}
.pill.active{color:var(--teal);border-color:var(--teal)}
.pill.idle{color:var(--ink-faint)}

/* ---- footer ---- */
.foot{border-top:1px solid var(--line);padding:52px 0 40px;margin-top:40px}
.foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.foot h4{font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-faint);margin:0 0 14px}
.foot a{display:block;color:var(--ink-dim);font-size:.9rem;padding:4px 0}
.foot a:hover{color:var(--ink)}
.foot .btm{margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;color:var(--ink-faint);
  font-size:.84rem;font-family:var(--mono);flex-wrap:wrap;gap:12px}

/* ---- auth / portal shared ---- */
.auth-wrap{min-height:calc(100vh - 64px);display:flex;align-items:center;
  justify-content:center;padding:40px 24px}
.auth-card{width:100%;max-width:400px;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);padding:36px}
.auth-card-wide{max-width:520px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.req-star{color:var(--amber)}
.opt{font-family:var(--mono);font-size:.68rem;color:var(--ink-faint);
  text-transform:uppercase;letter-spacing:.05em;margin-left:4px}
.form-msg{font-size:.88rem;margin:14px 0 0;min-height:1.2em;text-align:center;
  color:var(--ink-dim)}
.form-msg.err{color:var(--danger)}
.form-msg.ok{color:var(--teal)}
.auth-card h2{font-size:1.5rem;margin-bottom:6px}
.field{margin:16px 0}
.field label{display:block;font-size:.82rem;color:var(--ink-dim);margin-bottom:6px}
.field input{width:100%;background:var(--void);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:11px 13px;color:var(--ink);
  font-family:var(--sans);font-size:.95rem}
.field input:focus{outline:none;border-color:var(--amber)}
.auth-alt{margin-top:18px;font-size:.88rem;color:var(--ink-dim);text-align:center}
.auth-alt a{color:var(--amber)}

/* ---- responsive ---- */
@media(max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .foot .cols{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
}
@media(max-width:560px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .section{padding:64px 0}
  .foot .cols{grid-template-columns:1fr}
}

/* reduced motion */
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}

/* ---- nav bug button (issue reports; added by js/nav.js for licensed users) ---- */
.nav-bug{width:34px;height:34px;border:1px solid var(--line-bright);border-radius:var(--radius-sm);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-dim);
  transition:all .15s}
.nav-bug:hover{border-color:var(--ink-faint);color:var(--ink)}
.nav-bug-icon{width:18px;height:18px;background:currentColor;
  -webkit-mask:url(../img/bug.svg) center/contain no-repeat;
  mask:url(../img/bug.svg) center/contain no-repeat}