/* M87 Studio — m87studio.net
   Infrastructure aesthetic. Dark, spacious, structural.
   Orange (#E8600A) as structural accent only — never background fill. */

:root{
  --bg:#0A0908;
  --bg-elev:#121110;
  --bg-card:#15130F;
  --border:#24221F;
  --border-strong:#332F2A;
  --fg:#F2EFEB;
  --fg-muted:#8A8580;
  --fg-dim:#55514C;
  --orange:#E8600A;
  --orange-hover:#FF7A1F;
  --orange-dim:#8C3A06;
  --mono:'JetBrains Mono', ui-monospace, monospace;
  --sans:'Inter', system-ui, sans-serif;
  --head:'Space Grotesk', sans-serif;
  --max:1240px;
  --pad-x: clamp(20px, 4vw, 56px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html,body{background:var(--bg);color:var(--fg);font-family:var(--sans);font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{overflow-x:hidden;line-height:1.5}

a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img{max-width:100%;display:block}

::selection{background:var(--orange);color:var(--bg)}

/* ───────── Shell ───────── */
.shell{max-width:var(--max);margin:0 auto;padding:0 var(--pad-x);position:relative}

/* ───────── Topbar ───────── */
.topbar{
  position:sticky;top:0;z-index:40;
  background:rgba(10,9,8,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:24px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:32px;height:auto}
.brand-word{font-family:var(--head);font-weight:500;font-size:16px;letter-spacing:-.005em}

.nav{display:flex;align-items:center;gap:28px;font-family:var(--sans);font-size:14px;color:var(--fg-muted)}
.nav a, .nav-btn{color:var(--fg-muted);transition:color .15s ease;padding:6px 0}
.nav a:hover, .nav-btn:hover{color:var(--fg)}
.nav-item{position:relative}
.nav-btn{display:inline-flex;align-items:center;gap:6px}
.nav-btn .chev{font-size:10px;opacity:.7}
.dropdown{
  position:absolute;top:calc(100% + 8px);left:-12px;
  background:var(--bg-elev);border:1px solid var(--border);
  padding:6px 0;min-width:200px;
  opacity:0;visibility:hidden;transform:translateY(-4px);
  transition:all .15s ease;
}
.nav-item.has-dropdown:hover .dropdown, .nav-item.has-dropdown:focus-within .dropdown{opacity:1;visibility:visible;transform:none}
.dropdown a{display:block;padding:8px 16px;font-size:13px}
.dropdown a:hover{background:var(--bg-card);color:var(--fg)}

@media (max-width:720px){
  .nav{gap:18px;font-size:13px}
  .nav-item.has-dropdown .dropdown{display:none}
}

/* ───────── Buttons ───────── */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 22px;
  font-family:var(--sans);font-size:14px;font-weight:500;letter-spacing:.01em;
  border:1px solid transparent;
  transition:all .18s ease;
  white-space:nowrap;
}
.btn .arr{transition:transform .2s ease}
.btn:hover .arr{transform:translateX(3px)}
.btn-primary{background:transparent;color:var(--fg);border-color:var(--border-strong)}
.btn-primary:hover{border-color:var(--orange);color:var(--orange)}
.btn-lg{padding:18px 26px;font-size:15px}
.btn-ghost-lg{
  display:inline-flex;align-items:center;gap:10px;padding:14px 0;
  color:var(--orange);border-bottom:1px solid var(--orange);
  font-size:14px;font-weight:500;letter-spacing:.01em;
}
.btn-ghost-lg:hover{color:var(--orange-hover)}
.btn-ghost-lg .arr{transition:transform .2s ease}
.btn-ghost-lg:hover .arr{transform:translateX(3px)}

.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--fg);font-size:13px;font-weight:500;
  padding:8px 0;border-bottom:1px solid var(--border-strong);
  transition:all .18s ease;align-self:flex-start;
}
.btn-ghost:hover{color:var(--orange);border-bottom-color:var(--orange)}
.btn-ghost .arr{transition:transform .2s ease}
.btn-ghost:hover .arr{transform:translateX(3px)}

.cta-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center}

/* ───────── Kicker / Label ───────── */
.kicker, .section-label{
  font-family:var(--mono);font-size:11px;
  color:var(--fg-muted);letter-spacing:.22em;text-transform:uppercase;
}
.section-label{color:var(--orange);margin-bottom:14px}

/* ───────── Headings ───────── */
h1, h2, h3, h4{font-family:var(--head);font-weight:500;letter-spacing:-.01em;text-wrap:balance}

/* ───────── Sections scaffold ───────── */
.section{padding:clamp(88px, 14vh, 160px) 0;border-top:1px solid var(--border);position:relative}
.section-head{margin-bottom:56px;max-width:820px}
.section-heading{font-size:clamp(30px, 4vw, 46px);line-height:1.05;margin-bottom:16px}
.section-sub{font-size:16px;color:var(--fg-muted);line-height:1.6;max-width:620px;text-wrap:pretty}

/* ───────── Hero ───────── */
.hero{padding:clamp(72px, 12vh, 140px) 0 clamp(80px, 12vh, 140px);position:relative;overflow:hidden}
.hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(ellipse at 85% 40%, rgba(232,96,10,.08), transparent 55%),
    linear-gradient(180deg, rgba(232,96,10,.02), transparent 40%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.25fr .8fr;gap:clamp(32px, 5vw, 80px);align-items:center}
@media (max-width:900px){.hero-inner{grid-template-columns:1fr;gap:48px}}

.hero-copy .kicker{display:inline-block;margin-bottom:24px;padding-left:16px;border-left:2px solid var(--orange);line-height:1}
.hero-headline{
  font-size:clamp(38px, 6.4vw, 76px);
  line-height:1.02;
  letter-spacing:-.015em;
  margin-bottom:28px;
  font-weight:500;
}
.hero-headline .accent{color:var(--fg-muted);display:block;margin-top:6px;font-weight:400}
.hero-sub{
  font-size:clamp(16px, 1.4vw, 18px);
  color:var(--fg-muted);line-height:1.55;
  max-width:560px;margin-bottom:36px;text-wrap:pretty;
}

.hero-mark-wrap{
  position:relative;
  display:flex;align-items:center;justify-content:center;
  aspect-ratio:1.416/1;
  width:100%;max-width:520px;
  justify-self:end;
}
@media (max-width:900px){.hero-mark-wrap{justify-self:center;max-width:360px;order:-1;margin-bottom:8px}}
.hero-mark{
  width:100%;height:auto;
  filter:drop-shadow(0 20px 60px rgba(232,96,10,.15));
  animation:markBreath 8s ease-in-out infinite;
}
@keyframes markBreath{
  0%,100%{transform:scale(1);filter:drop-shadow(0 20px 60px rgba(232,96,10,.12))}
  50%{transform:scale(1.015);filter:drop-shadow(0 24px 80px rgba(232,96,10,.22))}
}

/* ───────── Thesis ───────── */
.section-thesis .section-head{margin-bottom:48px}
.thesis-body{
  display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(28px, 4vw, 56px);
  max-width:1100px;
}
@media (max-width:900px){.thesis-body{grid-template-columns:1fr;gap:24px}}
.thesis-body p{
  font-size:clamp(15px, 1.15vw, 17px);
  color:var(--fg-muted);line-height:1.65;text-wrap:pretty;
  padding-top:22px;border-top:1px solid var(--border);
}
.thesis-body p.thesis-close{color:var(--fg);font-weight:500}

/* ───────── Featured Resonance ───────── */
.section-featured{padding:clamp(104px, 16vh, 180px) 0}
.featured{
  position:relative;
  padding:clamp(40px, 5vw, 72px) clamp(32px, 4vw, 64px);
  border:1px solid var(--border-strong);
  background:linear-gradient(180deg, rgba(232,96,10,.025), transparent 70%), var(--bg-elev);
}
.featured::before{
  content:'';position:absolute;top:0;left:0;width:3px;height:64px;background:var(--orange);
}
.featured-status{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:11px;
  color:var(--orange);letter-spacing:.2em;text-transform:uppercase;
  margin-bottom:28px;
}
.featured-status .dot{
  width:8px;height:8px;border-radius:50%;background:var(--orange);
  box-shadow:0 0 0 3px rgba(232,96,10,.2);
  animation:statusBlink 2.4s ease-in-out infinite;
}
@keyframes statusBlink{0%,100%{opacity:1}50%{opacity:.5}}

.featured-heading{
  font-size:clamp(36px, 5.2vw, 64px);
  line-height:1;
  margin-bottom:24px;
  font-weight:500;
}
.featured-heading .sub-line{color:var(--fg-muted);font-weight:400;display:block;margin-top:8px;line-height:1.08}

.featured-body{
  font-size:clamp(16px, 1.3vw, 18px);
  color:var(--fg-muted);line-height:1.6;
  max-width:760px;margin-bottom:40px;text-wrap:pretty;
}
.featured-features{
  list-style:none;max-width:860px;margin-bottom:40px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid var(--border);
}
@media (max-width:820px){.featured-features{grid-template-columns:1fr}}
.featured-features li{
  padding:22px 0 22px 0;
  border-bottom:1px solid var(--border);
  font-size:14px;color:var(--fg);line-height:1.5;
  display:flex;gap:14px;align-items:baseline;
  padding-right:20px;
}
.featured-features li + li{padding-left:24px;border-left:1px solid var(--border)}
@media (max-width:820px){
  .featured-features li + li{padding-left:0;border-left:0}
}
.featured-features .idx{
  font-family:var(--mono);font-size:10px;color:var(--orange);
  letter-spacing:.12em;flex:0 0 auto;
}

.plugin-line{
  margin-top:28px;font-size:13px;color:var(--fg-dim);
  font-family:var(--mono);line-height:1.6;max-width:680px;
}

/* ───────── Product grid ───────── */
/* Product grid — 2+2+1 centered. Five cards: rows of two, last row a single centered card at the same column width. No mid-word breaks; word-level wrapping only. */
.grid-5{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 560px));
  justify-content:center;
  gap:32px;
  max-width:1152px; /* 2*560 + 32 gap — keeps columns at the 560px design target */
  margin:0 auto;
}
.grid-5 .card:nth-child(5){
  grid-column:1 / -1;
  justify-self:center;
  width:calc(50% - 16px);
  max-width:560px;
}
@media (max-width:1200px){
  .grid-5{grid-template-columns:repeat(2, minmax(0, 1fr));}
}
@media (max-width:768px){
  .grid-5{grid-template-columns:1fr; gap:16px;}
  .grid-5 .card:nth-child(5){width:100%; max-width:none;}
}
.card{
  background:var(--bg);
  border:1px solid var(--border);
  padding:36px 36px;
  display:flex;flex-direction:column;gap:18px;
  min-height:360px;
  transition:background .18s ease, border-color .18s ease;
  /* Word-level wrapping only; no mid-word breaks. */
  word-break:normal;
  overflow-wrap:break-word;
  hyphens:none;
}
.card:hover{background:var(--bg-elev); border-color:var(--border-strong)}
.card-head{display:flex;flex-direction:column;gap:6px}
.card-name{font-family:var(--head);font-size:26px;font-weight:500;letter-spacing:-.005em}
.card-tag{font-family:var(--mono);font-size:11px;color:var(--orange);letter-spacing:.1em;text-transform:uppercase}
.card-body{font-size:15px;color:var(--fg-muted);line-height:1.6;flex:1;text-wrap:pretty;word-break:normal;overflow-wrap:break-word;hyphens:none}
.card-foot{display:flex;flex-direction:column;gap:14px;margin-top:auto;padding-top:12px;border-top:1px solid var(--border)}
.card-foot .status{
  font-family:var(--mono);font-size:11px;color:var(--fg-dim);
  letter-spacing:.06em;
  display:inline-flex;align-items:center;gap:8px;
}
.status-live{color:var(--orange) !important}
.status-live .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 2px rgba(232,96,10,.2)}

/* ───────── Architecture ───────── */
.arch-grid{
  display:grid;grid-template-columns:minmax(300px, 1fr) 1.4fr;gap:clamp(32px, 5vw, 72px);
  align-items:start;
}
@media (max-width:960px){.arch-grid{grid-template-columns:1fr}}
.arch-copy p{color:var(--fg-muted);font-size:15px;line-height:1.6;margin-bottom:18px;text-wrap:pretty}
.arch-copy p:last-of-type{margin-bottom:28px}
.arch-diagram{
  background:var(--bg-elev);
  border:1px solid var(--border);
  padding:clamp(20px, 3vw, 36px);
}
.arch-diagram svg{width:100%;height:auto;display:block}
.arch-legend{
  display:flex;gap:20px;flex-wrap:wrap;margin-top:20px;padding-top:16px;border-top:1px solid var(--border);
  font-family:var(--mono);font-size:11px;color:var(--fg-muted);letter-spacing:.06em;
}
.arch-legend .sw{display:inline-block;width:20px;height:2px;background:var(--fg-dim);margin-right:8px;vertical-align:middle}
.arch-legend .sw.orange{background:var(--orange)}
.arch-legend .sw.dashed{background:transparent;border-top:1px dashed var(--fg-dim);height:0}

/* ───────── Who works with M87 ───────── */
.who-cols{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);
  border:1px solid var(--border);
  align-items:stretch;
}
@media (max-width:900px){.who-cols{grid-template-columns:1fr}}
.who-col{
  background:var(--bg);
  padding:40px 32px;
  display:flex;flex-direction:column;gap:14px;
  min-height:320px;
  height:100%;
}
.who-col:hover{background:var(--bg-elev)}
.who-num{font-family:var(--mono);font-size:11px;color:var(--orange);letter-spacing:.18em}
.who-title{font-family:var(--head);font-size:20px;font-weight:500;letter-spacing:-.005em;margin-bottom:4px}
.who-body{font-size:14px;color:var(--fg-muted);line-height:1.6;flex:1;text-wrap:pretty}

/* ───────── Close ───────── */
.section-close{padding-bottom:clamp(96px, 14vh, 160px)}
.close-body{max-width:780px}
.close-body p{color:var(--fg-muted);font-size:17px;line-height:1.65;margin-bottom:20px;text-wrap:pretty}
.close-body p.close-line{
  color:var(--fg);font-family:var(--head);font-size:clamp(22px, 2.4vw, 28px);
  font-weight:500;margin-top:40px;padding-top:32px;border-top:1px solid var(--border);
  letter-spacing:-.005em;
}

/* ───────── Footer ───────── */
html, body{min-height:0}
main{display:block}
.foot{border-top:1px solid var(--border);padding:72px 0 28px;background:var(--bg);margin:0}
.foot:after{content:none}
.foot-inner{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid var(--border);margin-bottom:28px;
}
@media (max-width:820px){.foot-inner{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:480px){.foot-inner{grid-template-columns:1fr}}
.foot-brand{display:flex;align-items:center;gap:14px}
.foot-mark{width:40px;height:auto}
.foot-title{font-family:var(--head);font-weight:500;font-size:16px}
.foot-place{font-family:var(--mono);font-size:11px;color:var(--fg-muted);letter-spacing:.1em;margin-top:2px}
.foot-h{font-family:var(--mono);font-size:10px;color:var(--fg-muted);letter-spacing:.22em;text-transform:uppercase;margin-bottom:14px;font-weight:500}
.foot-col ul{list-style:none}
.foot-col li{margin-bottom:8px}
.foot-col a{font-size:13px;color:var(--fg-muted);transition:color .15s}
.foot-col a:hover{color:var(--orange)}

.foot-legal{
  font-family:var(--mono);font-size:11px;color:var(--fg-dim);
  letter-spacing:.04em;line-height:1.7;
}

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