/* =====================================================================
   Eridonav — "Automotive Instrument Panel Interface"
   Everyday Car Ownership Awareness Guide. Dashboard / HUD / cockpit.
   Inter (display) · Source Sans 3 (body) · JetBrains Mono (UI/data)
   ===================================================================== */

:root{
  --asphalt:#0F141A;     /* dark asphalt — base background */
  --steel:#1B232B;       /* steel grey — surface           */
  --amber:#FFB020;       /* signal amber — accent          */
  --ice:#4DA3FF;         /* ice blue — secondary           */
  --white:#E8EEF2;       /* soft white — text              */
  --red:#FF5C5C;         /* soft red — warning             */
  --green:#37D399;       /* status ok                      */

  --steel-2:#222C36;
  --steel-3:#2B3742;
  --line:#2A343F;
  --line-2:#374451;
  --muted:#8FA0AE;
  --muted-2:#6A7B89;
  --amber-soft:rgba(255,176,32,.14);
  --ice-soft:rgba(77,163,255,.14);
  --red-soft:rgba(255,92,92,.14);

  --disp:"Inter",system-ui,sans-serif;
  --body:"Source Sans 3",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,monospace;

  --wrap:1300px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --accent:var(--amber);   /* shifts with seasonal mode */
}
body.season-winter{--accent:var(--ice)}

*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--asphalt);color:var(--white);
  font-family:var(--body);font-size:17px;line-height:1.72;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.nav-open{overflow:hidden;touch-action:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto}.reveal{opacity:1!important;transform:none!important}}

h1,h2,h3,h4{font-family:var(--disp);font-weight:700;line-height:1.06;color:#fff;margin:0;letter-spacing:-.02em}
h1{font-size:clamp(2.4rem,5.4vw,4.2rem);font-weight:800}
h2{font-size:clamp(1.8rem,3.4vw,2.7rem)}
h3{font-size:1.3rem}
h4{font-size:1.02rem}
p{margin:0 0 1.1rem}
a{color:var(--accent);text-decoration:none;transition:color .18s}
a:hover{color:#fff}
strong{font-weight:700;color:#fff}
em{font-style:italic}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px;min-width:0}
.narrow{max-width:780px}
.skip{position:absolute;left:-9999px;background:var(--amber);color:#0F141A;padding:10px 16px;z-index:300;border-radius:4px;font-family:var(--mono)}
.skip:focus{left:12px;top:12px}

/* ---- mono UI labels / readouts ---- */
.tag{font-family:var(--mono);font-size:.68rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.kicker{font-family:var(--mono);font-size:.7rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);
  display:inline-flex;align-items:center;gap:10px}
.kicker::before{content:"";width:18px;height:2px;background:var(--accent)}
.lead{font-size:1.16rem;line-height:1.6;color:var(--muted)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* status dot */
.sdot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(55,211,153,.18)}
.sdot.amber{background:var(--amber);box-shadow:0 0 0 3px var(--amber-soft)}
.sdot.red{background:var(--red);box-shadow:0 0 0 3px var(--red-soft)}
.sdot.ice{background:var(--ice);box-shadow:0 0 0 3px var(--ice-soft)}

/* reading progress */
.progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;background:var(--accent);transition:width .1s linear;box-shadow:0 0 12px var(--accent)}

/* =====================================================================
   HEADER — cockpit command bar (two-tier)
   ===================================================================== */
.masthead{position:sticky;top:0;z-index:120;background:rgba(15,20,26,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.mast-top{display:flex;align-items:center;gap:18px;height:58px;border-bottom:1px solid var(--line);min-width:0}
.brand{display:flex;align-items:center;gap:11px;flex:none;min-width:0}
.brand span{min-width:0}
.brand .mark{width:34px;height:34px;flex:none}
.brand b{font-family:var(--disp);font-weight:800;font-size:1.24rem;color:#fff;letter-spacing:-.02em;line-height:1}
.brand .sub{display:block;font-family:var(--mono);font-size:.54rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-top:2px}
.mast-status{margin-left:auto;display:flex;align-items:center;gap:18px;flex-shrink:1;min-width:0}
.sysstat{display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.cta-dash{font-family:var(--mono);font-size:.72rem;font-weight:600;letter-spacing:.06em;background:var(--accent);color:#0F141A;padding:9px 15px;border-radius:7px;display:inline-flex;align-items:center;gap:8px;text-transform:uppercase}
.cta-dash:hover{background:#fff;color:#0F141A}
.cta-dash svg{width:15px;height:15px}
.season-toggle{display:inline-flex;align-items:center;border:1px solid var(--line-2);border-radius:30px;overflow:hidden;background:var(--steel)}
.season-toggle button{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;background:none;border:none;color:var(--muted);padding:7px 12px;cursor:pointer}
.season-toggle button.on{background:var(--accent);color:#0F141A;font-weight:700}

.mast-nav{display:flex;align-items:center;gap:0;height:48px;overflow:visible}
.nav{display:flex;align-items:center;gap:0;flex-wrap:nowrap;width:100%}
.nav a{font-family:var(--disp);font-weight:500;font-size:.8rem;color:var(--muted);padding:7px 8px;border-radius:6px;position:relative;white-space:nowrap}
.nav a:hover{color:#fff}
.nav a.active{color:var(--accent)}
.nav a.active::after{content:"";position:absolute;left:9px;right:9px;bottom:-13px;height:2px;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line-2);background:var(--steel);border-radius:9px;cursor:pointer;color:#fff;align-items:center;justify-content:center}
.burger svg{width:22px;height:22px}
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;transition:.25s;z-index:118}
.scrim.on{opacity:1;visibility:visible}

/* =====================================================================
   BUTTONS
   ===================================================================== */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-weight:600;font-size:.84rem;letter-spacing:.04em;text-transform:uppercase;
  padding:14px 24px;border-radius:8px;cursor:pointer;border:1.5px solid transparent;transition:transform .18s var(--ease),background .2s,border-color .2s,color .2s}
.btn svg{width:16px;height:16px}
.btn-amber{background:var(--accent);color:#0F141A}
.btn-amber:hover{background:#fff;color:#0F141A;transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--white)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}

/* =====================================================================
   SECTIONS
   ===================================================================== */
.section{padding:84px 0;position:relative}
.band-steel{background:var(--steel)}
.band-steel2{background:var(--steel-2)}
.grid-bg{background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:46px 46px;background-position:center;position:relative}
.grid-bg::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0,transparent,var(--asphalt) 78%);pointer-events:none}
.sec-head{max-width:730px;margin-bottom:44px}
.sec-head .kicker{margin-bottom:18px}
.sec-head h2{margin-bottom:14px}
.sec-head p{margin:0}
.relwrap{position:relative;z-index:1}

/* =====================================================================
   HERO
   ===================================================================== */
.hero{padding:74px 0 58px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center;position:relative;z-index:1}
.hero .kicker{margin-bottom:22px}
.hero h1{margin-bottom:22px}
.hero h1 .ink{color:var(--accent)}
.hero .lead{max-width:46ch;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* =====================================================================
   HUD PANEL / GAUGE CLUSTER
   ===================================================================== */
.hud{background:var(--steel);border:1px solid var(--line-2);border-radius:16px;padding:24px;position:relative;overflow:hidden;
  box-shadow:0 30px 70px -40px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.04)}
.hud::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.6}
.hud-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.hud-head .tag{color:var(--muted)}
.hud-head .live{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green)}
.gauges{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.gauge{background:var(--asphalt);border:1px solid var(--line);border-radius:11px;padding:16px}
.gauge .g-k{font-family:var(--mono);font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2);display:block;margin-bottom:10px}
.gauge .g-v{font-family:var(--disp);font-weight:700;font-size:1.5rem;color:#fff;line-height:1}
.gauge .g-v small{font-size:.7rem;color:var(--muted);font-weight:500}
.gauge .g-bar{height:6px;border-radius:6px;background:var(--steel-3);overflow:hidden;margin-top:12px}
.gauge .g-bar span{display:block;height:100%;background:var(--green)}
.gauge .g-bar.amber span{background:var(--amber)}
.gauge .g-bar.red span{background:var(--red)}
.gauge .g-bar.ice span{background:var(--ice)}

/* =====================================================================
   INDICATOR STATUS CARDS (green/yellow/red)
   ===================================================================== */
.indicators{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.ind{grid-column:span 4;background:var(--steel);border:1px solid var(--line);border-radius:13px;padding:22px;position:relative;
  transition:transform .2s var(--ease),border-color .2s;overflow:hidden}
.ind::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--green)}
.ind.amber::before{background:var(--amber)}.ind.red::before{background:var(--red)}.ind.ice::before{background:var(--ice)}
.ind:hover{transform:translateY(-4px);border-color:var(--line-2)}
.ind.span6{grid-column:span 6}.ind.span12{grid-column:span 12}
.ind .ind-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:13px}
.ind .ind-stat{font-family:var(--mono);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green);display:flex;align-items:center;gap:7px}
.ind.amber .ind-stat{color:var(--amber)}.ind.red .ind-stat{color:var(--red)}.ind.ice .ind-stat{color:var(--ice)}
.ind h3{margin-bottom:7px;font-size:1.18rem}
.ind p{margin:0;color:var(--muted);font-size:.95rem}
.ind .ind-ico{width:30px;height:30px;color:var(--muted)}

/* =====================================================================
   SYSTEM STATUS BARS
   ===================================================================== */
.statusbars{display:grid;gap:14px}
.sbar{background:var(--steel);border:1px solid var(--line);border-radius:11px;padding:16px 20px;display:grid;grid-template-columns:180px 1fr 78px;gap:18px;align-items:center}
.sbar .sb-k{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--white)}
.sbar .sb-track{height:8px;border-radius:8px;background:var(--steel-3);overflow:hidden}
.sbar .sb-track span{display:block;height:100%;background:var(--green);border-radius:8px}
.sbar.amber .sb-track span{background:var(--amber)}.sbar.red .sb-track span{background:var(--red)}.sbar.ice .sb-track span{background:var(--ice)}
.sbar .sb-v{font-family:var(--mono);font-size:.74rem;color:var(--muted);text-align:right}

/* =====================================================================
   SPLIT / PANELS
   ===================================================================== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.split.flip > :first-child{order:2}
.split .prose p{font-size:1.03rem;color:var(--muted)}
.split .prose strong{color:#fff}
.panel{background:var(--steel);border:1px solid var(--line);border-radius:14px;padding:30px;position:relative;overflow:hidden}
.panel .tag{display:block;margin-bottom:14px}

/* HUD note */
.note{background:var(--steel-2);border:1px solid var(--line);border-radius:11px;padding:18px 22px;margin:1.5em 0;position:relative}
.note::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--accent);border-radius:3px}
.note.warn::before{background:var(--red)}
.note .tag{display:block;margin-bottom:7px;color:var(--accent)}
.note.warn .tag{color:var(--red)}
.note p{margin:0;color:var(--white);font-size:.98rem}
.annote{border-left:3px solid var(--ice);padding:4px 0 4px 18px;margin:1.3em 0;font-family:var(--mono);font-size:.88rem;color:var(--muted)}

/* =====================================================================
   MAINTENANCE TIMELINE STRIP
   ===================================================================== */
.timeline{position:relative;display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:0;margin-top:28px}
.timeline::before{content:"";position:absolute;top:11px;left:6%;right:6%;height:2px;background:var(--line-2)}
.tnode{text-align:center;position:relative;padding:0 12px}
.tnode .td{width:22px;height:22px;border-radius:50%;background:var(--asphalt);border:3px solid var(--accent);margin:0 auto 15px;position:relative;z-index:1}
.tnode:nth-child(even) .td{border-color:var(--ice)}
.tnode .tk{font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:6px}
.tnode h4{margin-bottom:6px}
.tnode p{margin:0;font-size:.88rem;color:var(--muted)}

/* =====================================================================
   NUMBERED FRAMEWORK
   ===================================================================== */
.frame{counter-reset:n;display:grid;gap:0}
.fstep{display:grid;grid-template-columns:84px 1fr;gap:24px;padding:26px 0;border-top:1px solid var(--line)}
.fstep:last-child{border-bottom:1px solid var(--line)}
.fstep::before{counter-increment:n;content:counter(n,decimal-leading-zero);font-family:var(--mono);font-weight:700;font-size:1.5rem;color:var(--accent)}
.fstep h3{margin-bottom:6px}
.fstep p{margin:0;color:var(--muted)}

/* =====================================================================
   WARNING INDICATORS (filterable)
   ===================================================================== */
.wfilter{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px}
.wchip{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;padding:8px 15px;border:1px solid var(--line-2);
  background:var(--steel);border-radius:30px;cursor:pointer;color:var(--muted);transition:.16s;display:flex;align-items:center;gap:8px}
.wchip:hover{color:#fff;border-color:var(--line-2)}
.wchip[aria-pressed=true]{background:var(--steel-3);color:#fff;border-color:var(--accent)}
.warns{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px}
.warn-card{background:var(--steel);border:1px solid var(--line);border-radius:13px;padding:22px;position:relative;transition:.18s}
.warn-card:hover{border-color:var(--line-2);transform:translateY(-3px)}
.warn-card .wc-top{display:flex;align-items:center;gap:13px;margin-bottom:13px}
.warn-ico{width:42px;height:42px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex:none;background:var(--green-soft,rgba(55,211,153,.14))}
.warn-ico svg{width:24px;height:24px}
.warn-card.sev-info .warn-ico{background:rgba(55,211,153,.14);color:var(--green)}
.warn-card.sev-caution .warn-ico{background:var(--amber-soft);color:var(--amber)}
.warn-card.sev-critical .warn-ico{background:var(--red-soft);color:var(--red)}
.warn-card .wc-sev{font-family:var(--mono);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;display:block;margin-bottom:2px}
.warn-card.sev-info .wc-sev{color:var(--green)}.warn-card.sev-caution .wc-sev{color:var(--amber)}.warn-card.sev-critical .wc-sev{color:var(--red)}
.warn-card h3{font-size:1.08rem;margin:0}
.warn-card p{margin:0;color:var(--muted);font-size:.93rem}
.filter-hide{display:none!important}
.wcount{font-family:var(--mono);font-size:.78rem;color:var(--muted);margin-bottom:20px}
.wcount b{color:var(--accent)}

/* =====================================================================
   DRIVING CONDITION / SEASONAL PANELS
   ===================================================================== */
.conds{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.cond{background:var(--steel);border:1px solid var(--line);border-radius:13px;padding:24px;position:relative;overflow:hidden}
.cond .c-ico{width:34px;height:34px;color:var(--accent);margin-bottom:14px}
.cond h3{font-size:1.12rem;margin-bottom:8px}
.cond p{margin:0;color:var(--muted);font-size:.94rem}
.cond .tag{display:block;margin-bottom:10px}

/* seasonal overlay block (responds to season mode) */
.seasonal-pane{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:8px}
.spane{background:var(--steel);border:1px solid var(--line);border-radius:14px;padding:26px;transition:border-color .25s,opacity .25s}
.spane h3{display:flex;align-items:center;gap:10px}
.spane .s-sum{color:var(--amber)}.spane .s-win{color:var(--ice)}
body:not(.season-winter) .spane.win{opacity:.5}
body.season-winter .spane.sum{opacity:.5}
body:not(.season-winter) .spane.sum{border-color:var(--amber)}
body.season-winter .spane.win{border-color:var(--ice)}
.spane ul{margin:8px 0 0;padding-left:18px}.spane li{margin:.3em 0;color:var(--muted);font-size:.95rem}.spane li::marker{color:var(--accent)}

/* =====================================================================
   HORIZONTAL STRIP
   ===================================================================== */
.strip{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(260px,320px);gap:16px;overflow-x:auto;max-width:100%;min-width:0;padding:6px 0 20px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.strip::-webkit-scrollbar{height:8px}.strip::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:8px}
.scard{scroll-snap-align:start;background:var(--steel);border:1px solid var(--line);border-radius:12px;padding:24px}
.scard .tag{display:block;margin-bottom:12px}.scard h3{margin-bottom:9px;font-size:1.12rem}.scard p{margin:0;color:var(--muted);font-size:.93rem}
.strip-hint{font-family:var(--mono);font-size:.74rem;color:var(--muted-2);margin-top:4px;display:flex;align-items:center;gap:8px}

/* =====================================================================
   INTELLIGENCE / CTA BAND
   ===================================================================== */
.intel{background:linear-gradient(135deg,var(--steel) 0%,var(--steel-2) 100%);border:1px solid var(--line-2);border-radius:16px;padding:44px;position:relative;overflow:hidden}
.intel::before{content:"";position:absolute;top:-1px;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent)}
.intel h2{margin-bottom:8px}
.intel .lead{margin-bottom:26px}
.ibox-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px}
.ibox{background:var(--asphalt);border:1px solid var(--line);border-radius:11px;padding:22px}
.ibox .tag{color:var(--accent);display:block;margin-bottom:9px}
.ibox h4{margin-bottom:6px}.ibox p{margin:0;color:var(--muted);font-size:.92rem}

/* =====================================================================
   CHECKLISTS (interactive)
   ===================================================================== */
.checks{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.checklist{background:var(--steel);border:1px solid var(--line);border-radius:13px;padding:24px 26px}
.checklist .cl-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.checklist h3{font-size:1.15rem}
.cl-count{font-family:var(--mono);font-size:.74rem;color:var(--muted)}
.cl-bar{height:6px;background:var(--steel-3);border-radius:6px;overflow:hidden;margin:12px 0 16px}
.cl-bar span{display:block;height:100%;width:0;background:var(--accent);transition:width .3s var(--ease)}
.cl-item{display:flex;align-items:flex-start;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);cursor:pointer}
.cl-item:last-child{border-bottom:none}
.cl-box{width:22px;height:22px;border:2px solid var(--line-2);border-radius:6px;flex:none;margin-top:1px;display:flex;align-items:center;justify-content:center;transition:.16s}
.cl-box svg{width:13px;height:13px;opacity:0;color:#0F141A;transition:opacity .15s}
.cl-item.done .cl-box{background:var(--accent);border-color:var(--accent)}
.cl-item.done .cl-box svg{opacity:1}
.cl-item.done .cl-text{color:var(--muted-2);text-decoration:line-through}
.cl-text{font-size:.98rem;color:var(--white)}
.cl-reset{margin-top:15px;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);background:none;border:none;cursor:pointer;padding:0}
.cl-reset:hover{color:#fff}

/* =====================================================================
   FAQ
   ===================================================================== */
.faqcat{font-family:var(--mono);font-size:.74rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:36px 0 12px}
.qa{border-bottom:1px solid var(--line)}
.qa button{width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:20px 48px 20px 0;
  font-family:var(--disp);font-weight:600;font-size:1.08rem;color:#fff;position:relative}
.qa button::after{content:"";position:absolute;right:8px;top:50%;width:10px;height:10px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:translateY(-65%) rotate(45deg);transition:transform .25s}
.qa.open button::after{transform:translateY(-30%) rotate(225deg)}
.qa .ans{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.qa .ans p{padding:0 0 20px;margin:0;color:var(--muted)}

/* =====================================================================
   FORM
   ===================================================================== */
.form{background:var(--steel);border:1px solid var(--line);border-radius:14px;padding:32px}
.frow{margin-bottom:18px}
.frow label{display:block;font-family:var(--mono);font-size:.68rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.frow input,.frow textarea{width:100%;font-family:var(--body);font-size:1rem;padding:13px 15px;border:1px solid var(--line-2);border-radius:8px;background:var(--asphalt);color:var(--white)}
.frow input::placeholder,.frow textarea::placeholder{color:var(--muted-2)}
.frow input:focus,.frow textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--amber-soft)}
body.season-winter .frow input:focus,body.season-winter .frow textarea:focus{box-shadow:0 0 0 3px var(--ice-soft)}
.frow textarea{min-height:150px;resize:vertical}
.frow.bad input,.frow.bad textarea{border-color:var(--red)}
.frow .err{display:none;color:var(--red);font-family:var(--mono);font-size:.74rem;margin-top:6px}
.frow.bad .err{display:block}
.ok{display:none;background:var(--steel-2);border:1px solid var(--green);border-radius:14px;padding:30px;text-align:center}
.ok.show{display:block}
.ok h3{color:var(--green);margin-bottom:8px}.ok p{margin:0;color:var(--muted)}

/* =====================================================================
   PROSE / LEGAL
   ===================================================================== */
.prose h2{margin:1.6em 0 .5em;color:#fff}
.prose h3{margin:1.4em 0 .4em;color:#fff}
.prose p{color:var(--muted)}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.3em;color:var(--muted)}
.prose li{margin:.4em 0}.prose li::marker{color:var(--accent)}
.prose strong{color:#fff}
.legal{counter-reset:s}
.legal h2{counter-increment:s;margin:1.7em 0 .5em}
.legal h2::before{content:counter(s,decimal-leading-zero) "  ";color:var(--accent);font-family:var(--mono);font-size:.9rem;font-weight:700}

/* =====================================================================
   FOOTER
   ===================================================================== */
.foot{background:#0B0F13;color:var(--muted);padding:60px 0 28px;border-top:1px solid var(--line)}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px}
.foot .brand b{color:#fff}
.foot p.about{color:var(--muted-2);max-width:40ch;font-size:.92rem;margin-top:14px}
.foot h4{font-family:var(--mono);font-size:.7rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}
.foot a{display:block;color:var(--muted);font-family:var(--disp);font-size:.9rem;padding:4px 0}
.foot a:hover{color:#fff}
.foot-base{margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-family:var(--mono);font-size:.74rem;color:var(--muted-2)}
.foot-base span{min-width:0}

/* reveal */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media(max-width:1200px){.nav a{font-size:.76rem;padding:7px 7px}}
@media(max-width:1040px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .split{grid-template-columns:1fr;gap:32px}.split.flip > :first-child{order:0}
  .indicators .ind{grid-column:span 6}
  .gauges{grid-template-columns:1fr 1fr}
  .seasonal-pane{grid-template-columns:1fr}
  .checks{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .mast-top{gap:10px}
  .mast-status{gap:8px}
  .mast-status .cta-dash{display:none}
  .mast-nav{display:block;height:0;padding:0;border:none;overflow:visible}
  .burger{display:flex;flex:none}
  .nav{position:fixed;top:0;right:0;height:100dvh;width:min(86vw,340px);flex-direction:column;align-items:stretch;gap:0;flex-wrap:nowrap;
    background:var(--steel);border-left:1px solid var(--line-2);padding:84px 16px 24px;transform:translateX(104%);
    transition:transform .3s var(--ease);z-index:119;overflow-y:auto}
  .nav.on{transform:none}
  .nav a{padding:14px 12px;font-size:1rem;border-bottom:1px solid var(--line);color:var(--white)}
  .nav a.active::after{display:none}
  .indicators .ind,.ind.span6{grid-column:1/-1}
  .sbar{grid-template-columns:1fr;gap:8px}.sbar .sb-v{text-align:left}
  .timeline{grid-auto-flow:row;gap:22px}.timeline::before{display:none}
  .tnode{text-align:left;padding-left:38px}.tnode .td{position:absolute;left:0;top:2px;margin:0}
  .fstep{grid-template-columns:1fr;gap:8px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .section{padding:60px 0}.intel{padding:30px}
  .mast-status .sysstat{display:none}
}
@media(max-width:520px){
  .wrap{padding:0 16px}
  .foot-grid{grid-template-columns:1fr}
  .gauges{grid-template-columns:1fr}
  .brand .sub{display:none}
  .season-toggle button{padding:7px 9px;font-size:.6rem}
}