/* Aspire Engineering — shared stylesheet for the static, multi-page site. */

:root{
  --ink:#1c2430;
  --ink-soft:#4d5560;
  --paper:#f3f3ee;
  --surface:#ffffff;
  --surface-2:#eceae2;
  --line:#d7d8ce;
  --brass:#a9782f;
  --brass-deep:#8a5f22;
  --brass-tint:#f1e6d2;
  --blueprint:#2f5d74;
  --blueprint-deep:#1f4152;
  --blueprint-tint:#e4edf0;
  --rust:#8b4030;
  --rust-tint:#f1e0da;
  --focus:#2f5d74;
  --panel:#1f4152;
  --panel-fg:#eef4f6;
  --panel-fg-soft:#cfe1e7;
  --shadow: 0 1px 2px rgba(28,36,48,.06), 0 8px 24px rgba(28,36,48,.06);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#eceee7;
    --ink-soft:#aab0a6;
    --paper:#14181c;
    --surface:#1b2027;
    --surface-2:#20262d;
    --line:#2c333b;
    --brass:#d9ab63;
    --brass-deep:#c98f42;
    --brass-tint:#332a1a;
    --blueprint:#7fb0c6;
    --blueprint-deep:#9fc6da;
    --blueprint-tint:#1b2a30;
    --rust:#cf8267;
    --rust-tint:#332420;
    --panel:#12303d;
    --panel-fg:#eef4f6;
    --panel-fg-soft:#cfe1e7;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"]{
  --ink:#eceee7;
  --ink-soft:#aab0a6;
  --paper:#14181c;
  --surface:#1b2027;
  --surface-2:#20262d;
  --line:#2c333b;
  --brass:#d9ab63;
  --brass-deep:#c98f42;
  --brass-tint:#332a1a;
  --blueprint:#7fb0c6;
  --blueprint-deep:#9fc6da;
  --blueprint-tint:#1b2a30;
  --rust:#cf8267;
  --rust-tint:#332420;
  --panel:#12303d;
  --panel-fg:#eef4f6;
  --panel-fg-soft:#cfe1e7;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans','Noto Sans SC','Noto Sans KR',-apple-system,Segoe UI,Arial,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Archivo','Noto Sans SC','Noto Sans KR',sans-serif;
  color:var(--ink);
  margin:0;
  text-wrap:balance;
}
.display{
  font-family:'Big Shoulders Display','Noto Sans SC','Noto Sans KR','Archivo',sans-serif;
  font-weight:800;
  letter-spacing:.005em;
}
p{margin:0;}
a{color:var(--blueprint);}
button{font-family:inherit;}
img,svg{display:block;max-width:100%;}
.mono{
  font-family:'IBM Plex Mono','Noto Sans SC','Noto Sans KR',monospace;
}
.eyebrow{
  font-family:'IBM Plex Mono','Noto Sans SC','Noto Sans KR',monospace;
  font-size:.78rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--blueprint);
  display:flex;
  align-items:center;
  gap:.6em;
}
.eyebrow::before{
  content:"";
  display:inline-block;
  width:1.3em;
  height:2px;
  background:var(--brass);
}
:focus-visible{outline:2px solid var(--focus); outline-offset:2px;}
.wrap{
  max-width:1140px;
  margin:0 auto;
  padding:0 clamp(20px,4vw,40px);
}
.skip-link{
  position:absolute; left:-999px; top:0; z-index:100;
  background:var(--surface); color:var(--ink); padding:10px 16px; border-radius:0 0 6px 0;
}
.skip-link:focus{left:0;}

/* ---------- Header ---------- */
header{
  position:sticky; top:0; z-index:50;
  border-bottom:1px solid var(--line);
}
header::before{
  content:"";
  position:absolute; inset:0; z-index:-1;
  background:color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter:blur(8px);
}
.headbar{
  display:flex; align-items:center; justify-content:space-between;
  gap:20px; padding:14px clamp(20px,4vw,40px);
  max-width:1140px; margin:0 auto;
}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--ink); cursor:pointer; border:none; background:none; padding:0;}
.brand-mark{width:34px; height:34px; flex:none;}
.brand-text{display:flex; flex-direction:column; line-height:1.05;}
.brand-text .b1{font-family:'Archivo',sans-serif; font-weight:800; font-size:1.05rem; letter-spacing:.02em;}
.brand-text .b2{font-family:'IBM Plex Mono',monospace; font-size:.62rem; letter-spacing:.16em; color:var(--ink-soft); text-transform:uppercase;}

nav.primary{display:flex; align-items:center; gap:28px;}
nav.primary a{
  font-family:'IBM Plex Mono',monospace;
  font-size:.8rem; letter-spacing:.06em; text-transform:uppercase;
  color:var(--ink-soft); text-decoration:none; padding:6px 2px;
  border-bottom:2px solid transparent; cursor:pointer;
  background:none; border:none; border-bottom-width:2px;
}
nav.primary a:hover{color:var(--ink);}
nav.primary a[aria-current="page"]{color:var(--ink); border-bottom-color:var(--brass);}

.head-actions{display:flex; align-items:center; gap:14px;}
.langswitch{position:relative;}
.langbtn{
  display:flex; align-items:center; gap:6px;
  font-family:'IBM Plex Mono',monospace; font-size:.78rem; letter-spacing:.04em;
  color:var(--ink); background:var(--surface); border:1px solid var(--line);
  padding:7px 10px; border-radius:3px; cursor:pointer;
}
.langmenu{
  position:absolute; right:0; top:calc(100% + 6px);
  background:var(--surface); border:1px solid var(--line); border-radius:6px;
  box-shadow:var(--shadow); padding:6px; display:none; min-width:150px; z-index:60;
}
.langmenu.open{display:block;}
.langmenu a{
  display:flex; width:100%; text-align:left; gap:8px; align-items:baseline;
  background:none; border:none; padding:8px 10px; border-radius:4px; cursor:pointer;
  font-size:.85rem; color:var(--ink); text-decoration:none;
}
.langmenu a:hover{background:var(--surface-2);}
.langmenu a .code{font-family:'IBM Plex Mono',monospace; font-size:.68rem; color:var(--ink-soft); width:2.2em;}
.langmenu a[aria-current="true"]{color:var(--blueprint); font-weight:600;}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:'Archivo',sans-serif; font-weight:700; font-size:.85rem;
  letter-spacing:.02em; text-decoration:none; cursor:pointer;
  padding:12px 20px; border-radius:3px; border:1px solid transparent;
  white-space:nowrap;
}
.btn-primary{background:var(--brass); color:#1c1405;}
.btn-primary:hover{background:var(--brass-deep);}
.btn-outline{background:transparent; color:var(--ink); border-color:var(--line);}
.btn-outline:hover{border-color:var(--blueprint); color:var(--blueprint);}
.btn-block{width:100%;}

.navtoggle{display:none; background:none; border:1px solid var(--line); border-radius:3px; padding:8px; cursor:pointer;}
.navtoggle svg{stroke:var(--ink);}

/* ---------- Hero ---------- */
.hero{
  position:relative; overflow:hidden;
  padding:clamp(56px,10vw,110px) 0 clamp(50px,8vw,90px);
  background:
    repeating-linear-gradient(0deg, transparent 0 39px, var(--line) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, var(--line) 39px 40px),
    var(--paper);
  background-size:40px 40px, 40px 40px, auto;
  -webkit-mask-image:linear-gradient(to bottom, black 0%, black 72%, transparent 100%);
  mask-image:linear-gradient(to bottom, black 0%, black 72%, transparent 100%);
}
.hero-inner{position:relative; max-width:1140px; margin:0 auto; padding:0 clamp(20px,4vw,40px);}
.corner{position:absolute; width:26px; height:26px; border:2px solid var(--brass); opacity:.55;}
.corner.tl{top:0; left:0; border-right:none; border-bottom:none;}
.corner.br{bottom:0; right:0; border-left:none; border-top:none;}
.hero-content{max-width:760px;}
.hero h1{font-size:clamp(2.3rem,5.4vw,3.6rem); line-height:1.05; margin:16px 0 20px;}
.hero p.lede{font-size:1.1rem; color:var(--ink-soft); max-width:56ch; margin-bottom:32px;}
.hero-ctas{display:flex; gap:14px; flex-wrap:wrap;}

/* ---------- Sections ---------- */
section.block{padding:clamp(48px,7vw,86px) 0;}
section.block.alt{background:var(--surface);}
.block-head{margin-bottom:clamp(28px,4vw,44px); max-width:640px;}
.block-head h2{font-size:clamp(1.6rem,3.2vw,2.2rem); margin-top:10px;}
.block-head h1{font-size:clamp(1.6rem,3.2vw,2.2rem); margin-top:10px;}
.block-head p{color:var(--ink-soft); margin-top:12px; max-width:58ch;}

.grid{display:grid; gap:20px;}
.grid-5{grid-template-columns:repeat(5,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media (max-width:980px){
  .grid-5{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .grid-5,.grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}
}

.card{
  background:var(--surface); border:1px solid var(--line); border-radius:6px;
  padding:22px 20px; display:flex; flex-direction:column; gap:10px;
}
section.block.alt .card{background:var(--paper);}
.card svg.icon{width:26px; height:26px; stroke:var(--blueprint); flex:none;}
.eyebrow.cat{margin:32px 0 14px;}
.eyebrow.cat:first-child{margin-top:0;}
.card h3{font-size:1.02rem;}
.card p{color:var(--ink-soft); font-size:.92rem;}

.why-grid .card{border-left:3px solid var(--brass);}

.steps{display:grid; grid-template-columns:repeat(4,1fr); gap:0; border-top:1px solid var(--line); border-left:1px solid var(--line);}
.steps .step{padding:22px 20px; border-right:1px solid var(--line); border-bottom:1px solid var(--line); background:var(--surface);}
section.block.alt .steps .step{background:var(--paper);}
.steps .step .num{font-family:'IBM Plex Mono',monospace; color:var(--brass); font-size:.85rem;}
.steps .step h3{margin-top:8px; font-size:1rem;}
.steps .step p{margin-top:8px; color:var(--ink-soft); font-size:.88rem;}
@media (max-width:780px){ .steps{grid-template-columns:1fr;} }

.banner{
  background:var(--panel); color:var(--panel-fg); border-radius:8px;
  padding:clamp(30px,5vw,50px); display:flex; align-items:center; justify-content:space-between;
  gap:24px; flex-wrap:wrap;
}
.banner h2{color:var(--panel-fg); font-size:clamp(1.3rem,2.6vw,1.7rem); max-width:32ch;}
.banner p{color:var(--panel-fg-soft); margin-top:8px; max-width:44ch;}
.banner .btn-primary{flex:none;}

/* services page */
.service-full{
  border:1px solid var(--line); border-radius:8px; padding:26px clamp(20px,3vw,32px);
  display:grid; grid-template-columns:220px 1fr; gap:24px; background:var(--surface);
  margin-bottom:18px;
}
@media (max-width:760px){ .service-full{grid-template-columns:1fr;} }
.service-tag{
  display:inline-flex; align-self:start; font-family:'IBM Plex Mono',monospace; font-size:.7rem;
  letter-spacing:.08em; text-transform:uppercase; color:var(--brass-deep); background:var(--brass-tint);
  padding:4px 9px; border-radius:20px;
}
.service-full h3{font-size:1.2rem; margin-top:10px;}
.service-full ul{margin:14px 0 0; padding:0; list-style:none; display:grid; gap:8px;}
.service-full ul li{
  color:var(--ink-soft); font-size:.9rem; padding-left:1.3em; position:relative;
}
.service-full ul li::before{
  content:""; position:absolute; left:0; top:.55em; width:6px; height:6px; background:var(--blueprint);
}
.service-full > p{color:var(--ink-soft); margin-top:2px;}

/* projects */
.project-card{
  border:1px solid var(--line); border-radius:8px; padding:22px; background:var(--surface);
  display:flex; flex-direction:column; gap:10px; position:relative;
}
.project-card h3{font-size:1.05rem;}
.project-meta{font-family:'IBM Plex Mono',monospace; font-size:.75rem; color:var(--ink-soft); display:flex; gap:14px; flex-wrap:wrap;}
.project-card p.desc{color:var(--ink-soft); font-size:.9rem;}
.project-note{
  border:1px dashed var(--line); border-radius:8px; padding:16px 18px; color:var(--ink-soft);
  font-size:.9rem; margin-bottom:26px; background:var(--surface-2);
}

/* about */
.mission{
  font-family:'Archivo',sans-serif; font-weight:500; font-size:clamp(1.2rem,2.4vw,1.55rem);
  line-height:1.4; max-width:44ch; margin-bottom:8px;
}
.about-notes{display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:36px;}
.about-notes .note{background:var(--surface-2); border-radius:8px; padding:18px 20px; font-size:.9rem; color:var(--ink-soft);}
.about-notes .note strong{display:block; color:var(--ink); font-family:'Archivo',sans-serif; margin-bottom:6px;}
@media (max-width:700px){ .about-notes{grid-template-columns:1fr;} }

/* contact */
.contact-grid{display:grid; grid-template-columns:.9fr 1.1fr; gap:clamp(28px,5vw,56px);}
@media (max-width:820px){ .contact-grid{grid-template-columns:1fr;} }
.contact-item{display:flex; gap:12px; padding:16px 0; border-bottom:1px solid var(--line);}
.contact-item svg{stroke:var(--blueprint); flex:none; margin-top:2px;}
.contact-item .label{font-family:'IBM Plex Mono',monospace; font-size:.7rem; text-transform:uppercase; letter-spacing:.08em; color:var(--ink-soft);}
.contact-item .value{margin-top:2px; font-weight:500;}
.contact-item a.value{color:var(--ink); text-decoration:none;}
.contact-item a.value:hover{color:var(--blueprint);}
.field{display:flex; flex-direction:column; gap:6px; margin-bottom:16px;}
.field label{font-family:'IBM Plex Mono',monospace; font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-soft);}
.field input, .field textarea{
  font-family:inherit; font-size:.95rem; padding:11px 12px; border:1px solid var(--line);
  border-radius:4px; background:var(--surface); color:var(--ink);
}
.field textarea{resize:vertical; min-height:110px;}
.field input:focus, .field textarea:focus{border-color:var(--blueprint);}
.form-note{font-size:.78rem; color:var(--ink-soft); margin-top:10px;}
.contact-form{background:var(--surface); border:1px solid var(--line); border-radius:8px; padding:clamp(20px,3vw,30px);}

footer{border-top:1px solid var(--line); padding:40px 0 30px; background:var(--surface);}
.foot-top{display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap; padding-bottom:24px; border-bottom:1px solid var(--line);}
.foot-tagline{color:var(--ink-soft); font-size:.9rem; max-width:36ch; margin-top:10px;}
.foot-nav{display:flex; gap:20px; flex-wrap:wrap;}
.foot-nav a{font-family:'IBM Plex Mono',monospace; font-size:.78rem; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-soft); text-decoration:none; cursor:pointer; background:none; border:none;}
.foot-nav a:hover{color:var(--ink);}
.foot-bottom{display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; padding-top:20px; font-size:.78rem; color:var(--ink-soft); font-family:'IBM Plex Mono',monospace;}

@media (max-width:860px){
  nav.primary{
    position:fixed; inset:64px 0 0 0; background:var(--paper); flex-direction:column;
    align-items:flex-start; padding:20px clamp(20px,4vw,40px); gap:4px; transform:translateY(-8px);
    opacity:0; pointer-events:none; transition:opacity .18s ease, transform .18s ease; z-index:40;
  }
  nav.primary.open{opacity:1; pointer-events:auto; transform:translateY(0);}
  nav.primary a{width:100%; padding:14px 4px; font-size:.95rem; border-bottom:1px solid var(--line);}
  .navtoggle{display:inline-flex;}
  .head-actions .btn-primary{display:none;}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  nav.primary{transition:none;}
}