/* ============================================================
   MAMBRU INC — shared design system.
   Apple-grade structure/motion restraint, pushed with a bolder
   hero-red + gold energy accent. Loaded by every page on the site.
   ============================================================ */

:root{
  --black:#050506;
  --deep:#08080b;
  --card:#0d0d11;
  --card2:#131317;
  --border:rgba(255,255,255,0.07);
  --border-hi:rgba(255,255,255,0.16);
  --red:#e2263a;
  --red-dim:rgba(226,38,58,0.22);
  --red-glow:rgba(226,38,58,0.12);
  --gold:#e0b34a;
  --gold-dim:rgba(224,179,74,0.22);
  --white:#f5f3f0;
  --muted:rgba(245,243,240,0.4);
  --green:#3ee8a0;
  --d:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --s:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --m:'Space Mono',monospace;
  --dh:'Space Grotesk','Inter',-apple-system,BlinkMacSystemFont,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--black);color:var(--white);font-family:var(--d);overflow-x:hidden;cursor:none;-webkit-font-smoothing:antialiased}

/* GRAIN */
body::before{content:'';position:fixed;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");pointer-events:none;z-index:1000;opacity:1}

/* CURSOR */
.cur{position:fixed;top:0;left:0;width:6px;height:6px;background:var(--white);border-radius:50%;pointer-events:none;z-index:9999;transform:translate(-50%,-50%);transition:width .2s,height .2s,opacity .2s;mix-blend-mode:difference}
.cur-ring{position:fixed;top:0;left:0;width:28px;height:28px;border:1px solid rgba(255,255,255,.2);border-radius:50%;pointer-events:none;z-index:9998;transform:translate(-50%,-50%);transition:width .3s,height .3s,border-color .3s}
body:hover .cur{opacity:1}

/* NAV — glass, hides on scroll-down, reveals on scroll-up */
nav{position:fixed;top:0;left:0;right:0;z-index:500;display:flex;align-items:center;justify-content:space-between;padding:0 52px;height:64px;transition:background .5s,border-color .5s,transform .5s cubic-bezier(.16,1,.3,1);border-bottom:1px solid transparent}
nav.scrolled{background:rgba(5,5,6,.72);backdrop-filter:blur(20px) saturate(1.6);-webkit-backdrop-filter:blur(20px) saturate(1.6);border-color:var(--border)}
nav.nav-hide{transform:translateY(-100%)}
.nav-logo{font-family:var(--d);font-weight:800;letter-spacing:-.01em;font-size:18px;color:var(--white);text-decoration:none;display:flex;align-items:center;gap:10px}
.brand-mark{width:26px;height:26px;flex-shrink:0}
.footer-logo{display:flex;align-items:center;gap:8px}
.footer-logo .brand-mark{width:18px;height:18px;opacity:.7}
.nav-center{display:flex;gap:40px}
.nav-center a{color:var(--muted);text-decoration:none;font-family:var(--d);font-weight:500;font-size:12px;letter-spacing:.01em;transition:color .2s;position:relative;padding-bottom:3px}
.nav-center a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:1px;background:var(--red);transition:width .3s}
.nav-center a:hover,.nav-center a.active{color:var(--white)}
.nav-center a:hover::after,.nav-center a.active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:24px}

/* ── ENTRANCE ANIMATION ── */
@keyframes fu{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}

/* ── MINI-HERO (secondary page headers) ── */
.mini-hero{position:relative;padding:150px 48px 48px;border-bottom:1px solid var(--border);overflow:hidden}
.mini-hero-glow{position:absolute;inset:0;background:radial-gradient(ellipse 70% 60% at 50% 0%,var(--red-glow),transparent 70%);pointer-events:none}
.mh-eye{font-family:var(--m);font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--red);margin-bottom:14px;display:flex;align-items:center;gap:12px;opacity:0;animation:fu .7s .05s forwards}
.mh-eye::before{content:'';width:24px;height:1px;background:currentColor;opacity:.6}
.mh-title{font-family:var(--dh);font-weight:700;letter-spacing:-.03em;font-size:clamp(48px,8vw,88px);line-height:.94;opacity:0;animation:fu .9s .16s cubic-bezier(.16,1,.3,1) forwards}
.mh-sub{font-size:17px;color:var(--muted);letter-spacing:0;margin-top:16px;max-width:560px;line-height:1.6;opacity:0;animation:fu .8s .3s forwards}

/* ── BUTTONS ── */
.btn-fill{background:var(--red);color:var(--white);border:none;padding:16px 34px;font-family:var(--d);font-weight:600;font-size:14px;letter-spacing:-.005em;cursor:pointer;border-radius:980px;transition:transform .35s cubic-bezier(.16,1,.3,1),background .25s;text-decoration:none;display:inline-flex;align-items:center;gap:10px;will-change:transform}
.btn-fill:hover{background:#f13850}
.btn-fill.gold{background:var(--gold);color:#1a1408}
.btn-fill.gold:hover{background:#eec46a}
.btn-line{background:transparent;color:var(--white);border:1px solid var(--border-hi);padding:16px 34px;font-family:var(--d);font-weight:600;font-size:14px;cursor:pointer;border-radius:980px;transition:all .25s;text-decoration:none;display:inline-flex;align-items:center;gap:10px}
.btn-line:hover{border-color:rgba(255,255,255,.35);background:rgba(255,255,255,.04)}
.btn-fill.sm,.btn-line.sm{padding:9px 20px;font-size:12px}
.magnetic{position:relative;display:inline-block}

/* ── WAITLIST FORM ── */
.waitlist{display:flex;gap:0;flex-wrap:wrap;justify-content:center;max-width:440px;margin:0 auto}
.waitlist-input{flex:1;min-width:220px;background:rgba(255,255,255,.04);border:1px solid var(--border-hi);border-right:none;color:var(--white);padding:15px 18px;font-family:var(--d);font-size:14px;outline:none;border-radius:980px 0 0 980px}
.waitlist-input:focus{border-color:rgba(255,255,255,.35)}
.waitlist-input::placeholder{color:var(--muted)}
.waitlist .btn-fill{border-radius:0 980px 980px 0;white-space:nowrap}
.waitlist-status{font-family:var(--m);font-size:10px;letter-spacing:.08em;margin-top:14px;min-height:14px;color:var(--muted)}
.waitlist-status.ok{color:var(--green)}
.waitlist-status.err{color:var(--red)}
@media(max-width:480px){
  .waitlist{flex-direction:column}
  .waitlist-input{border-right:1px solid var(--border-hi);border-radius:980px}
  .waitlist .btn-fill{border-radius:980px}
}

/* ── PRODUCT GRID (index / future products) ── */
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border)}
@media(max-width:800px){.prod-grid{grid-template-columns:1fr}}
.pc{position:relative;background:var(--black);overflow:hidden;aspect-ratio:4/5;display:flex;align-items:flex-end;padding:32px;text-decoration:none;color:var(--white)}
.pc-art{position:absolute;inset:0;z-index:0}
.pc-art svg{width:100%;height:100%;display:block}
.pc-scrim{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,transparent 30%,rgba(5,5,6,.9) 100%)}
.pc-body{position:relative;z-index:2;width:100%}
.pc-tag{font-family:var(--m);font-size:9px;letter-spacing:.25em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.pc-name{font-family:var(--d);font-weight:800;letter-spacing:-.02em;font-size:clamp(26px,3vw,34px);margin-bottom:8px}
.pc-desc{font-size:14px;color:var(--muted);line-height:1.5;max-width:320px}
.pc-cta{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-family:var(--d);font-weight:600;font-size:13px;color:var(--white)}
.pc.soon{cursor:default}
.pc.soon .pc-name{color:var(--muted)}
.pc.soon .pc-tag{color:var(--muted)}

/* ── FOOTER ── */
footer{position:relative;z-index:2;border-top:1px solid var(--border);padding:32px 48px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:20px}
.footer-logo{font-family:var(--d);font-weight:800;font-size:16px;letter-spacing:-.01em;color:rgba(245,243,240,.3)}
.footer-links{display:flex;gap:28px}
.footer-links a{font-size:11px;letter-spacing:.05em;color:rgba(245,243,240,.35);text-decoration:none;transition:color .2s}
.footer-links a:hover{color:var(--red)}
.footer-copy{font-size:10px;color:rgba(245,243,240,.2);letter-spacing:.02em}

/* ── RESPONSIVE / A11Y ── */
@media(max-width:900px){
  nav{padding:0 20px}
  .nav-center{display:none}
  footer{padding:24px 20px;flex-direction:column;align-items:flex-start}
  .mini-hero{padding:120px 20px 32px}
}
::-webkit-scrollbar{width:3px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border)}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}
:focus-visible{outline:1px solid var(--red);outline-offset:2px}
@media(hover:none),(pointer:coarse){
  body{cursor:auto}
  .cur,.cur-ring{display:none}
}

/* ── COMIC-STYLE DIAGONAL / HALFTONE DIVIDERS ───────────────────────────
   A tasteful nod to the "Marvel" side of the brief: a thin diagonal-cut
   line plus a small halftone-dot wedge tucked in the corner of each
   section break. Applied via .diag-divider on top of the normal border. */
.diag-divider{position:relative}
.diag-divider::before{content:'';position:absolute;top:-1px;left:0;right:0;height:2px;background:linear-gradient(100deg,transparent 0%,var(--border-hi) 8%,var(--red) 12%,var(--border-hi) 16%,transparent 30%,transparent 70%,var(--border-hi) 84%,var(--gold) 88%,var(--border-hi) 92%,transparent 100%);opacity:.7;pointer-events:none}
.diag-divider::after{content:'';position:absolute;top:0;right:0;width:130px;height:52px;background-image:radial-gradient(circle,rgba(255,255,255,.22) 1px,transparent 1.3px);background-size:7px 7px;clip-path:polygon(100% 0,100% 100%,42% 0);opacity:.4;pointer-events:none}

/* ── HERO PARTICLES ──────────────────────────────────────────────────── */
.hero-particles{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.hp{position:absolute;border-radius:50%;opacity:0;animation:hpDrift linear infinite}
@keyframes hpDrift{
  0%{opacity:0;transform:translateY(0) scale(.6)}
  10%{opacity:.7}
  90%{opacity:.5}
  100%{opacity:0;transform:translateY(-140px) scale(1.1)}
}

/* ── MILESTONE TRACKER ───────────────────────────────────────────────── */
.milestones{padding:100px 0;border-top:1px solid var(--border)}
.milestone-track{display:flex;gap:0;margin-top:56px;position:relative}
.milestone-track::before{content:'';position:absolute;top:7px;left:0;right:0;height:1px;background:var(--border-hi)}
.milestone{flex:1;position:relative;padding-right:16px}
.milestone-dot{width:15px;height:15px;border-radius:50%;background:var(--card2);border:2px solid var(--border-hi);position:relative;z-index:1;margin-bottom:18px}
.milestone.done .milestone-dot{background:var(--gold);border-color:var(--gold)}
.milestone.active .milestone-dot{background:var(--red);border-color:var(--red);animation:milestonePulse 2s ease-out infinite}
@keyframes milestonePulse{0%{box-shadow:0 0 0 0 var(--red-dim)}70%{box-shadow:0 0 0 8px rgba(226,38,58,0)}100%{box-shadow:0 0 0 0 rgba(226,38,58,0)}}
.milestone-label{font-family:var(--m);font-size:9px;letter-spacing:.15em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.milestone.done .milestone-label{color:var(--gold)}
.milestone.active .milestone-label{color:var(--red)}
.milestone-name{font-family:var(--dh);font-weight:600;font-size:16px;letter-spacing:-.01em;line-height:1.25}
@media(max-width:800px){
  .milestone-track{flex-direction:column;gap:24px}
  .milestone-track::before{display:none}
  .milestone{padding-right:0;padding-left:24px;border-left:1px solid var(--border-hi)}
  .milestone-dot{position:absolute;left:-8px;top:0}
}

/* ── COMPARISON TABLE ────────────────────────────────────────────────── */
.compare{padding:100px 0;border-top:1px solid var(--border)}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);margin-top:48px;border:1px solid var(--border)}
@media(max-width:700px){.compare-grid{grid-template-columns:1fr}}
.compare-col{background:var(--black);padding:36px}
.compare-col.us{background:linear-gradient(160deg,rgba(226,38,58,.06),transparent 60%)}
.compare-col h3{font-family:var(--dh);font-weight:700;font-size:20px;letter-spacing:-.01em;margin-bottom:24px}
.compare-col.us h3{color:var(--gold)}
.compare-row{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-top:1px solid var(--border);font-size:14px;line-height:1.5;color:var(--muted)}
.compare-row:first-of-type{border-top:none}
.compare-row .mark{flex-shrink:0;width:18px;text-align:center;font-family:var(--m);font-size:13px}
.compare-col.us .compare-row .mark{color:var(--gold)}
.compare-col:not(.us) .compare-row .mark{color:rgba(226,38,58,.6)}

/* ── FAQ ACCORDION ───────────────────────────────────────────────────── */
.faq{padding:100px 0;border-top:1px solid var(--border)}
.faq-list{margin-top:48px;border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border)}
.faq-q{width:100%;background:none;border:none;color:var(--white);text-align:left;padding:22px 4px;font-family:var(--dh);font-weight:600;font-size:17px;letter-spacing:-.005em;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-q .chev{font-family:var(--m);color:var(--muted);transition:transform .3s cubic-bezier(.16,1,.3,1);flex-shrink:0}
.faq-item.open .faq-q .chev{transform:rotate(45deg);color:var(--red)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.16,1,.3,1)}
.faq-a p{font-size:15px;line-height:1.7;color:var(--muted);padding:0 4px 22px;max-width:640px}
.faq-item.open .faq-a{max-height:220px}

/* ── LIVE BATTERY WIDGET ─────────────────────────────────────────────── */
.battery-widget{margin-top:36px;padding:20px 24px;background:rgba(255,255,255,.03);border:1px solid var(--border-hi);border-radius:16px;max-width:420px}
.panel.right .battery-widget{margin-left:auto}
.bw-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.bw-title{font-family:var(--m);font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.bw-live{display:flex;align-items:center;gap:6px;font-family:var(--m);font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--gold)}
.bw-live-dot{width:6px;height:6px;border-radius:50%;background:var(--gold);animation:bwPulse 1.6s ease-in-out infinite}
@keyframes bwPulse{0%,100%{opacity:1}50%{opacity:.3}}
.bw-row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:4px}
.bw-label{font-size:13px;color:var(--muted)}
.bw-value{font-family:var(--dh);font-weight:700;font-size:20px;color:var(--white)}
.bw-value.gold{color:var(--gold)}
.bw-bar{height:6px;border-radius:4px;background:var(--card2);margin:10px 0 14px;overflow:hidden}
.bw-bar-fill{height:100%;background:linear-gradient(90deg,var(--red),var(--gold));border-radius:4px;transition:width .6s ease}
.bw-note{font-size:11px;color:var(--muted);line-height:1.6}

/* ── EASTER EGG: ENERGY SURGE ────────────────────────────────────────── */
.energy-surge{position:fixed;inset:0;z-index:9500;pointer-events:none;background:radial-gradient(circle at 50% 50%,rgba(226,38,58,.35),rgba(224,179,74,.15) 45%,transparent 75%);opacity:0}
.energy-surge.fire{animation:surge .9s ease-out}
@keyframes surge{0%{opacity:0;transform:scale(.3)}30%{opacity:1;transform:scale(1)}100%{opacity:0;transform:scale(1.6)}}
.energy-toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(16px);background:var(--deep);border:1px solid var(--gold);color:var(--white);padding:12px 22px;font-family:var(--m);font-size:10px;letter-spacing:.15em;text-transform:uppercase;z-index:9600;opacity:0;transition:all .35s;border-radius:980px}
.energy-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media(prefers-reduced-motion:reduce){
  .hp{display:none}
  .milestone-dot,.bw-live-dot{animation:none!important}
}