/* ==========================================================================
   AM-Reaper project page
   Depends on base.css. The red accent comes from [data-brand="reaper"] on
   <html>, so every shared component inherits it automatically.
   ========================================================================== */

body{
  background:
    radial-gradient(circle at 82% 4%,rgba(227,27,35,.11),transparent 26rem),
    radial-gradient(circle at 8% 38%,rgba(227,27,35,.05),transparent 30rem),
    var(--bg);
}

/* --- Hero ----------------------------------------------------------------- */
.r-hero{padding-block:calc(var(--header-h) + clamp(48px,7vw,84px)) clamp(40px,6vw,64px)}
.r-hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(32px,5vw,56px);align-items:center}
.r-hero h1{
  margin:16px 0 22px;
  font-size:clamp(3rem,7.6vw,6.4rem);line-height:.88;letter-spacing:-.07em;font-weight:800;
}
.r-hero h1 .reaper{display:block;color:#fff;text-shadow:0 0 40px rgba(227,27,35,.16)}
.r-hero h1 .firmware{display:block;color:transparent;-webkit-text-stroke:1px var(--text-4)}
.r-hero .lede{max-width:66ch;color:var(--text-2);font-size:clamp(1.02rem,1.6vw,1.2rem);margin-bottom:28px}
.r-hero .lede strong{color:var(--text);font-weight:600}
.r-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}

/* Grid, not flex-wrap: four stats in a narrow column wrapped 3+1 and left the
   last one orphaned on its own row. */
.r-meta{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px 34px;max-width:440px;color:var(--text-3);
}
.r-meta strong{display:block;color:var(--text);font-size:1.15rem;letter-spacing:-.02em}
.r-meta span{font:9px var(--mono);text-transform:uppercase;letter-spacing:.12em}

.screen{
  position:relative;padding:1px;
  background:linear-gradient(135deg,rgba(227,27,35,.75),rgba(255,255,255,.1) 30%,rgba(255,255,255,.03) 70%);
  box-shadow:0 26px 80px rgba(0,0,0,.45);
}
.screen::before{
  content:"";position:absolute;inset:12% 6% -8%;z-index:-1;
  background:rgba(227,27,35,.16);filter:blur(55px);
}
.screen-inner{background:#09090b;border:1px solid #111116;overflow:hidden}
.screen-inner img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top}
.screen-bar{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 14px;border-top:1px solid var(--line);background:#0e0e12;
  color:var(--text-3);font:10px var(--mono);letter-spacing:.06em;
}
.live-dot{
  width:8px;height:8px;border-radius:50%;background:#39d98a;display:inline-block;margin-right:8px;
  box-shadow:0 0 14px rgba(57,217,138,.6);
}

/* --- Release channels ------------------------------------------------------ */
.channels{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
.channel{padding:22px 24px;border:1px solid var(--line);background:var(--surface-1)}
.channel.beta{border-style:dashed;border-color:rgba(255,202,92,.4)}
.channel-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 12px;margin-bottom:10px}
.channel-head .tag{
  padding:4px 8px;border:1px solid var(--line-strong);
  font:9px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);
}
.channel.beta .channel-head .tag{border-color:rgba(255,202,92,.45);color:var(--amber)}
.channel-head strong{font-size:1.25rem;letter-spacing:-.02em}
.channel-head span{font:10px var(--mono);letter-spacing:.06em;color:var(--text-4)}
.channel p{color:var(--text-2);font-size:.9rem;line-height:1.6}
.channel ul{margin:10px 0 0;padding-left:18px;color:var(--text-3);font-size:.86rem;line-height:1.6}
.channel .link-row{margin-top:12px}

/* --- Proof strip ---------------------------------------------------------- */
.proof-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
}
.proof{background:var(--bg);padding:22px}
.proof strong{display:block;font-size:.98rem;margin-bottom:8px;letter-spacing:-.01em}
.proof span{color:var(--text-3);font-size:.85rem;line-height:1.6}

/* --- Principles ----------------------------------------------------------- */
.principle-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.principle{padding:30px;border:1px solid var(--line);background:var(--surface-1);transition:border-color .3s var(--ease)}
.principle:hover{border-color:var(--accent-dim)}
.principle .icon{
  width:42px;height:42px;display:grid;place-items:center;margin-bottom:20px;
  border:1px solid var(--accent-dim);color:var(--accent);font-size:1.15rem;
}
.principle h3{font-size:1.15rem;letter-spacing:-.02em;margin-bottom:12px}
.principle p{color:var(--text-2);font-size:.93rem}

/* --- Feature showcase ----------------------------------------------------- */
.feature-showcase{display:grid;grid-template-columns:340px 1fr;gap:24px;align-items:start}
.feature-list{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line)}
.feature-tab{
  display:block;width:100%;text-align:left;cursor:pointer;
  padding:16px 18px;border:0;background:var(--bg);
  border-left:2px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.feature-tab:hover{background:var(--surface-2)}
.feature-tab b{display:block;font-size:.96rem;font-weight:600;letter-spacing:-.01em}
.feature-tab span{display:block;margin-top:5px;color:var(--text-3);font-size:.82rem;line-height:1.55}
.feature-tab[aria-selected="true"]{background:var(--surface-2);border-left-color:var(--accent)}
.feature-tab[aria-selected="true"] b{color:var(--accent)}

.feature-display{border:1px solid var(--line);background:var(--surface-1);overflow:hidden}
.feature-display img{
  width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top;
  background:var(--surface-2);cursor:zoom-in;
}
.feature-copy{padding:24px;border-top:1px solid var(--line)}
.feature-copy .tag{
  display:inline-block;padding:5px 9px;border:1px solid var(--accent-dim);
  font:9px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent);
}
.feature-copy h3{font-size:1.5rem;letter-spacing:-.03em;margin:14px 0 10px}
.feature-copy p{color:var(--text-2);font-size:.95rem;max-width:76ch}

/* --- Models --------------------------------------------------------------- */
.models{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.model-panel,.variant-panel{padding:clamp(24px,3vw,34px);border:1px solid var(--line);background:var(--surface-1)}
.model-panel h3,.variant-panel h3{font-size:1.2rem;letter-spacing:-.02em;margin-bottom:12px}
.model-panel > p,.variant-panel > p{color:var(--text-2);font-size:.92rem;margin-bottom:22px}
.chips{display:flex;flex-direction:column;gap:10px}
.chip{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 12px;
  padding:13px 16px;border:1px solid var(--line-strong);background:var(--bg);
  font:600 .95rem var(--mono);letter-spacing:-.01em;
}
.chip small{font:9px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-4);font-weight:400}
.chip.primary{border-color:var(--accent-dim);background:var(--accent-wash);color:var(--accent)}
.chip.primary small{color:var(--accent);opacity:.75}
.variant{padding:18px 0;border-top:1px solid var(--line)}
.variant b{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:.98rem;margin-bottom:8px}
.variant b span{
  padding:3px 8px;border:1px solid var(--line-strong);
  font:9px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);font-weight:400;
}
.variant p{color:var(--text-3);font-size:.88rem}

/* --- Interface explorer ----------------------------------------------------
   A click-through mock of the Reaper shell: our own rail and tab bar drawn
   around real content captures. Only the current screen is loaded. */
.ui{border:1px solid var(--line);background:#09090c;box-shadow:0 26px 80px rgba(0,0,0,.4)}
.ui-head{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;
  padding:11px 16px;border-bottom:1px solid var(--line);background:#0e0e12;
  font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);
}
.ui-brand{font:800 15px var(--sans);letter-spacing:-.02em;color:#fff;text-transform:none;margin-right:6px}
.ui-brand em{color:var(--accent);font-style:italic;font-weight:800}
.ui-brand small{display:block;font:9px var(--mono);letter-spacing:.1em;color:var(--text-4);text-transform:uppercase}
.ui-pill{display:inline-flex;align-items:center;gap:7px;padding:6px 10px;border:1px solid var(--line-strong);background:#121216;white-space:nowrap}
.ui-pill b{color:var(--text);font-weight:600;letter-spacing:.02em;text-transform:none}
.ui-pill .live-dot{margin-right:0}
.ui-head .ui-note{margin-left:auto;color:var(--text-4)}
.ui-body{display:grid;grid-template-columns:236px minmax(0,1fr)}
.ui-side{position:relative;border-right:1px solid var(--line);background:#0b0b0e;display:flex;flex-direction:column;min-width:0}
.ui-search{
  margin:12px 12px 4px;padding:9px 11px;
  background:#08080a;border:1px solid var(--line-strong);color:var(--text);font-size:.85rem;
}
.ui-search:focus{outline:none;border-color:var(--accent)}
.ui-search::placeholder{color:var(--text-4)}
.ui-rail,.ui-results{overflow:auto;padding:4px 8px 14px;max-height:760px;scrollbar-width:thin}
.ui-grp{font:9px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-4);margin:14px 10px 6px}
.ui-item{
  display:flex;align-items:center;gap:11px;width:100%;padding:9px 10px;
  border:0;border-left:2px solid transparent;background:transparent;
  color:var(--text-2);font-size:.86rem;text-align:left;cursor:pointer;
  transition:background .15s var(--ease),color .15s var(--ease);
}
.ui-item svg{
  width:17px;height:17px;flex:none;opacity:.8;
  fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.ui-item span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ui-item:hover{background:#111116;color:var(--text)}
.ui-item.on{color:var(--accent);background:var(--accent-wash);border-left-color:var(--accent)}
.ui-item.on svg{opacity:1}
.ui-item small{margin-left:auto;font:9px var(--mono);color:var(--text-4)}
.ui-empty{padding:18px 12px;color:var(--text-3);font-size:.86rem}
.ui-main{display:flex;flex-direction:column;min-width:0}
.ui-tabs{display:flex;flex-wrap:wrap;gap:6px;padding:12px 16px 0}
.ui-tab{
  padding:8px 12px;border:1px solid var(--line-strong);background:#121216;cursor:pointer;
  color:var(--text-2);font:600 11px var(--mono);letter-spacing:.05em;
  transition:color .15s var(--ease),border-color .15s var(--ease);
}
.ui-tab:hover{color:var(--text);border-color:var(--text-4)}
.ui-tab[aria-selected="true"]{color:#fff;border-color:var(--accent);background:linear-gradient(180deg,rgba(227,27,35,.28),#121216)}
.ui-crumb{padding:12px 16px 0;font:10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-4)}
.ui-screen{
  margin:10px 16px 0;border:1px solid var(--line);background:#0b0b0d;
  max-height:min(74vh,880px);overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;cursor:zoom-in;
}
.ui-screen img{width:100%;height:auto;display:block}
.ui-foot{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 18px;align-items:start;
  padding:14px 16px 16px;
}
.ui-foot h3{font-size:1rem;letter-spacing:-.01em;margin-bottom:4px}
.ui-foot p{color:var(--text-3);font-size:.86rem;line-height:1.55;max-width:80ch}
.ui-meta{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;margin-top:8px;font:9px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-4)}
.ui-meta a{color:var(--accent);border-bottom:1px solid var(--accent-dim)}
.ui-ctl{display:flex;gap:6px}
.ui-btn{
  width:38px;height:38px;display:grid;place-items:center;cursor:pointer;
  background:#121216;border:1px solid var(--line-strong);color:var(--text);font-size:1.1rem;line-height:1;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.ui-btn:hover{border-color:var(--accent);color:var(--accent)}
.ui-btn.wide{width:auto;padding:0 12px;font:600 10px var(--mono);letter-spacing:.08em;text-transform:uppercase}

/* --- Lightbox ------------------------------------------------------------- */
.lightbox{
  position:fixed;inset:0;z-index:60;
  display:none;place-items:center;
  /* Override the UA dialog defaults so it can fill the viewport. */
  width:100%;height:100%;max-width:none;max-height:none;margin:0;border:0;
  padding:clamp(12px,3vw,40px);
  background:rgba(4,5,7,.94);backdrop-filter:blur(6px);
  color:var(--text);overscroll-behavior:contain;
}
.lightbox[open]{display:grid}
.lightbox::backdrop{background:transparent}
.lb-figure{margin:0;max-width:min(1400px,100%);max-height:100%;display:flex;flex-direction:column;min-height:0}
.lb-figure img{
  flex:1;min-height:0;width:auto;max-width:100%;object-fit:contain;
  border:1px solid var(--line-strong);background:var(--surface-1);
}
.lb-figure figcaption{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 4px 0;color:var(--text-2);font-size:.9rem;
}
.lb-figure figcaption b{font-weight:600}
.lb-figure figcaption .idx{font:10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-4)}
.lb-figure figcaption a{color:var(--accent);font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid var(--accent-dim)}
.lb-btn{
  position:absolute;top:50%;transform:translateY(-50%);
  width:48px;height:48px;display:grid;place-items:center;cursor:pointer;
  background:rgba(12,17,21,.9);border:1px solid var(--line-strong);color:var(--text);
  font-size:1.3rem;line-height:1;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.lb-btn:hover{border-color:var(--accent);color:var(--accent)}
.lb-prev{left:clamp(8px,2vw,24px)}
.lb-next{right:clamp(8px,2vw,24px)}
.lb-close{
  position:absolute;top:clamp(10px,2vw,22px);right:clamp(10px,2vw,22px);
  width:44px;height:44px;transform:none;
}

/* --- Transparency --------------------------------------------------------- */
.transparency{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.transparency-card{padding:clamp(24px,3vw,34px);border:1px solid var(--line);background:var(--surface-1)}
.transparency-card h3{font-size:1.2rem;letter-spacing:-.02em;margin-bottom:12px}
.transparency-card p{color:var(--text-2);font-size:.93rem;margin-bottom:22px}
.link-row{display:flex;flex-wrap:wrap;gap:14px 22px}

/* --- Support callout ------------------------------------------------------ */
.r-support{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  padding:clamp(26px,4vw,44px);
  border:1px solid var(--accent-dim);background:var(--accent-wash);
}
.r-support h2{font-size:clamp(1.4rem,3vw,2.2rem);letter-spacing:-.035em;margin-bottom:12px}
.r-support p{color:var(--text-2);max-width:60ch;font-size:.96rem}

/* --- Closing CTA ---------------------------------------------------------- */
.r-cta{
  padding:clamp(32px,5vw,64px);
  border:1px solid var(--line);background:var(--surface-1);text-align:center;
}
.r-cta h2{font-size:clamp(1.7rem,4vw,2.9rem);letter-spacing:-.04em;line-height:1.08;margin:14px auto 16px;max-width:22ch}
.r-cta > p{color:var(--text-2);max-width:66ch;margin:0 auto 26px}
.r-cta .r-actions{justify-content:center;margin-bottom:0}

/* --- Responsive ----------------------------------------------------------- */
@media (max-width:1080px){
  .r-hero-grid{grid-template-columns:1fr;gap:40px}
  .channels{grid-template-columns:1fr}
  .feature-showcase{grid-template-columns:1fr}
  .feature-list{flex-direction:row;overflow-x:auto;gap:1px;scrollbar-width:thin}
  .feature-tab{min-width:220px;border-left:0;border-bottom:2px solid transparent}
  .feature-tab[aria-selected="true"]{border-left-color:transparent;border-bottom-color:var(--accent)}
  .models{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .ui-body{grid-template-columns:1fr}
  .ui-side{border-right:0;border-bottom:1px solid var(--line)}
  .ui-rail,.ui-results{display:flex;gap:2px;overflow-x:auto;max-height:none;padding:6px 8px 10px}
  .ui-grp{display:none}
  .ui-item{width:auto;flex:none;white-space:nowrap;border-left:0;border-bottom:2px solid transparent;padding:8px 10px}
  .ui-item.on{border-bottom-color:var(--accent)}
  .ui-item small{display:none}
  .ui-head .ui-note{display:none}
}
@media (max-width:760px){
  .principle-grid,.transparency{grid-template-columns:1fr}
  .ui-foot{grid-template-columns:1fr}
}
@media (max-width:560px){
  .proof-grid{grid-template-columns:1fr}
  .ui-screen{max-height:70vh}
  .lb-btn{width:40px;height:40px}
}

/* --- Inline-style replacements ------------------------------------------- */
.proof-strip{margin-top:clamp(32px,5vw,52px)}
.band-support{padding-bottom:clamp(60px,8vw,96px)}
.band-cta{padding-bottom:clamp(72px,10vw,120px)}
.footer-upstream-link{color:var(--text-2);border-bottom:1px solid var(--line-strong)}
.legal.is-spaced{margin-top:14px}

/* The base `img{height:auto}` rule must not stop the lightbox image from
   filling its flex track. */
.lb-figure img{height:auto;min-height:0}

/* --- Models: platform groups + experimental chip -------------------------- */
.chip-group{display:flex;flex-direction:column;gap:10px}
.chip-group + .chip-group{margin-top:20px}
.chip-label{font:9px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-4);margin:0}
.chip.experimental{border-style:dashed;border-color:rgba(255,202,92,.45);color:var(--amber)}
.chip.experimental small{color:var(--amber);opacity:.8}
.model-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);color:var(--text-3);font-size:.86rem;line-height:1.6}

/* --- Owner's guide -------------------------------------------------------- */
.guide{display:grid;grid-template-columns:1.25fr .75fr;gap:20px;align-items:start}
.guide-card,.guide-side{padding:clamp(24px,3vw,34px);border:1px solid var(--line);background:var(--surface-1)}
.guide-card h3,.guide-side h3{font-size:1.2rem;letter-spacing:-.02em;margin-bottom:12px}
.guide-side > p{color:var(--text-2);font-size:.92rem;margin-bottom:18px}
.guide-toc{list-style:none;counter-reset:guide;margin:0 0 26px;padding:0}
.guide-toc li{
  counter-increment:guide;display:grid;grid-template-columns:34px 1fr;gap:4px 14px;
  padding:14px 0;border-top:1px solid var(--line);
}
.guide-toc li::before{
  content:counter(guide,decimal-leading-zero);grid-row:1/3;
  font:600 11px var(--mono);letter-spacing:.08em;color:var(--accent);padding-top:3px;
}
.guide-toc b{font-size:.96rem;font-weight:600;letter-spacing:-.01em}
.guide-toc span{color:var(--text-3);font-size:.85rem;line-height:1.55}
.r-actions.is-tight{margin-bottom:0}
.guide-links{display:flex;flex-direction:column}
.guide-links a{
  display:block;padding:13px 0;border-top:1px solid var(--line);
  transition:color .2s var(--ease);
}
.guide-links a:last-child{border-bottom:1px solid var(--line)}
.guide-links b{display:block;font-size:.93rem;font-weight:600;letter-spacing:-.01em;color:var(--text)}
.guide-links span{display:block;margin-top:3px;color:var(--text-3);font-size:.82rem;line-height:1.5}
.guide-links a:hover b{color:var(--accent)}

/* --- Open source: pledges + clean room ------------------------------------ */
.pledge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:20px}
.pledge{padding:28px;border:1px solid var(--accent-dim);background:var(--accent-wash)}
.pledge-mark{
  display:grid;place-items:center;width:42px;height:42px;margin-bottom:18px;
  border:1px solid var(--accent-dim);color:var(--accent);font:600 1.2rem var(--mono);
}
.pledge h3{font-size:1.2rem;letter-spacing:-.02em;margin-bottom:10px}
.pledge p{color:var(--text-2);font-size:.9rem;line-height:1.6}

.cleanroom{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(24px,4vw,48px);
  padding:clamp(24px,3vw,34px);margin-bottom:20px;
  border:1px solid var(--line);background:var(--surface-1);
}
.cleanroom-copy h3{font-size:1.2rem;letter-spacing:-.02em;margin-bottom:12px}
.cleanroom-copy p{color:var(--text-2);font-size:.93rem;margin-bottom:22px}
.cleanroom-steps{list-style:none;counter-reset:step;margin:0;padding:0}
.cleanroom-steps li{
  counter-increment:step;display:grid;grid-template-columns:34px 1fr;gap:4px 14px;
  padding:14px 0;border-top:1px solid var(--line);
}
.cleanroom-steps li:last-child{padding-bottom:0}
.cleanroom-steps li::before{
  content:counter(step,decimal-leading-zero);grid-row:1/3;
  font:600 11px var(--mono);letter-spacing:.08em;color:var(--accent);padding-top:3px;
}
.cleanroom-steps b{font-size:.96rem;font-weight:600;letter-spacing:-.01em}
.cleanroom-steps span{color:var(--text-3);font-size:.85rem;line-height:1.55}

@media (max-width:1080px){
  .pledge-grid{grid-template-columns:1fr 1fr}
  .cleanroom{grid-template-columns:1fr}
}
@media (max-width:760px){
  .guide,.pledge-grid{grid-template-columns:1fr}
}
