/* Angel13 Systems — site styles */
:root {
  --bg:      #0a0c0f;
  --bg-alt:  #0f1318;
  --panel:   #12171d;
  --line:    #1f262f;
  --ink:     #e7ebf0;
  --muted:   #8a95a3;
  --dim:     #5d6773;
  --accent:  #5eead4;
  --accent-d:#2dd4bf;
  --warn:    #f5b544;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
img, svg { max-width: 100%; }
hr { border: 0; border-top: 1px solid var(--line); margin: 3rem 0; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 1.5rem; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.center { text-align: center; }

/* ---------- header ---------- */
.site-head {
  position: sticky; top: 0; z-index: 40;
  background: rgba(10,12,15,.82);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap { display: flex; align-items: center; gap: 2rem; height: 64px; }
.brand { display: flex; align-items: center; gap: .6rem; color: var(--ink); font-weight: 620; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand .mark { width: 26px; height: 26px; flex: none; }
.brand small {
  display: block; font-family: var(--mono); font-size: 10px; font-weight: 400;
  letter-spacing: .16em; color: var(--dim); text-transform: uppercase; line-height: 1;
}
.brand b { display: block; font-size: 15px; line-height: 1.2; }

nav.main { margin-left: auto; display: flex; align-items: center; gap: 1.6rem; }
nav.main a {
  color: var(--muted); font-size: 14px; font-weight: 500;
}
nav.main a:hover { color: var(--ink); text-decoration: none; }
nav.main a.active { color: var(--ink); }
nav.main a.active::after {
  content: ""; display: block; height: 2px; background: var(--accent); margin-top: 4px; border-radius: 2px;
}

.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .62rem 1.05rem; border-radius: 7px;
  font-size: 14px; font-weight: 560; line-height: 1;
  border: 1px solid transparent; cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #05100d; }
.btn-primary:hover { background: var(--accent-d); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--dim); }

/* ---------- section scaffolding ---------- */
section { padding: 5rem 0; }
section.tight { padding: 3.25rem 0; }
.alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 .9rem;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.35rem); line-height: 1.08; letter-spacing: -.03em; margin: 0 0 1.1rem; font-weight: 640; }
h2 { font-size: clamp(1.5rem, 3vw, 2.05rem); line-height: 1.2; letter-spacing: -.02em; margin: 0 0 1rem; font-weight: 620; }
h3 { font-size: 1.06rem; letter-spacing: -.01em; margin: 0 0 .5rem; font-weight: 600; }
p  { margin: 0 0 1rem; }
.lede { font-size: 1.12rem; color: var(--muted); max-width: 62ch; }

/* ---------- hero ---------- */
.hero { padding: 6.5rem 0 4.5rem; position: relative; overflow: hidden; isolation: isolate; }
/* photographic wireframe plate, faded out bottom + right */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2; pointer-events: none;
  background: var(--bg) url("/assets/hero-bg.jpg") no-repeat left center / cover;
  opacity: .9;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 58%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 58%, transparent 100%);
}
/* accent bloom over the plate */
.hero::after {
  content: ""; position: absolute; inset: -30% -10% auto -20%; z-index: -1;
  height: 620px; pointer-events: none;
  background: radial-gradient(46% 52% at 28% 50%, rgba(94,234,212,.09), transparent 70%);
}
.hero .wrap { position: relative; z-index: 1; }
@media (prefers-reduced-motion: no-preference) {
  .hero::before { transition: opacity .4s ease; }
}
@media (max-width: 640px) {
  .hero::before { background-position: 22% center; opacity: .55; }
}

/* ---------- photos ---------- */
figure.shot { margin: 0; }
figure.shot img {
  display: block; width: 100%; height: auto;
  border: 1px solid var(--line); border-radius: 11px;
}
figure.shot figcaption {
  font-family: var(--mono); font-size: 11px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--dim); margin-top: .7rem;
}
.hero .lede { font-size: 1.2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }

.status-pill {
  display: inline-flex; align-items: center; gap: .5rem;
  border: 1px solid var(--line); background: var(--panel);
  border-radius: 999px; padding: .3rem .8rem .3rem .55rem;
  font-family: var(--mono); font-size: 12px; color: var(--muted); margin-bottom: 1.6rem;
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px rgba(94,234,212,.15); }
.dot.amber { background: var(--warn); box-shadow: 0 0 0 3px rgba(245,181,68,.15); }

/* ---------- logo strip ---------- */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 1.75rem 0; background: var(--bg-alt); }
.strip .wrap { display: flex; align-items: center; gap: 2.25rem; flex-wrap: wrap; justify-content: center; }
.strip span {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .08em;
  color: var(--dim); text-transform: uppercase; white-space: nowrap;
}
.strip .label { color: var(--muted); letter-spacing: .18em; font-size: 10.5px; }

/* ---------- grids / cards ---------- */
.grid { display: grid; gap: 1.1rem; }
.g2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0,1fr)); }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 11px; padding: 1.5rem;
}
.card p:last-child { margin-bottom: 0; }
.card .num { font-family: var(--mono); font-size: 11px; color: var(--dim); letter-spacing: .12em; display: block; margin-bottom: .9rem; }
.card.link:hover { border-color: var(--dim); }

.split { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 3.5rem; align-items: start; }

/* ---------- metrics ---------- */
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 11px; overflow: hidden; }
.metrics div { background: var(--bg-alt); padding: 1.5rem 1.35rem; }
.metrics .v { font-size: 1.9rem; font-weight: 640; letter-spacing: -.03em; line-height: 1.1; }
.metrics .k { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .13em; color: var(--dim); margin-top: .35rem; }

/* ---------- lists ---------- */
ul.ticks { list-style: none; padding: 0; margin: 0; }
ul.ticks li { position: relative; padding-left: 1.5rem; margin-bottom: .55rem; color: var(--muted); }
ul.ticks li::before {
  content: "▸"; position: absolute; left: 0; top: 0;
  color: var(--accent); font-size: .85em;
}

dl.spec { margin: 0; display: grid; grid-template-columns: 148px 1fr; gap: .55rem 1.25rem; }
dl.spec dt { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .1em; color: var(--dim); padding-top: 3px; }
dl.spec dd { margin: 0; color: var(--muted); }

/* ---------- terminal block ---------- */
.term {
  background: #06080a; border: 1px solid var(--line); border-radius: 11px;
  font-family: var(--mono); font-size: 13px; line-height: 1.75; overflow: hidden;
}
.term .bar { display: flex; align-items: center; gap: .45rem; padding: .6rem .85rem; border-bottom: 1px solid var(--line); background: var(--panel); }
.term .bar i { width: 10px; height: 10px; border-radius: 50%; background: #2a323c; display: block; }
.term .bar span { margin-left: .5rem; font-size: 11px; color: var(--dim); letter-spacing: .05em; }
.term pre { margin: 0; padding: 1rem 1.1rem; overflow-x: auto; color: var(--muted); }
.term .c-a { color: var(--accent); }
.term .c-w { color: var(--warn); }
.term .c-i { color: var(--ink); }

/* ---------- table ---------- */
.tbl-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 11px; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 640px; }
thead th {
  text-align: left; font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--dim); font-weight: 500;
  padding: .85rem 1.1rem; background: var(--panel); border-bottom: 1px solid var(--line);
}
tbody td { padding: .9rem 1.1rem; border-bottom: 1px solid var(--line); color: var(--muted); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
tbody td:first-child { color: var(--ink); white-space: nowrap; }
.tag {
  display: inline-block; font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em;
  text-transform: uppercase; padding: .15rem .5rem; border-radius: 4px;
  border: 1px solid var(--line); color: var(--muted); background: var(--bg);
}
.tag.ok { color: var(--accent); border-color: rgba(94,234,212,.3); }
.tag.hold { color: var(--warn); border-color: rgba(245,181,68,.3); }

/* ---------- case study ---------- */
.case { border: 1px solid var(--line); border-radius: 11px; overflow: hidden; background: var(--panel); }
.case .head { padding: 1.5rem; border-bottom: 1px solid var(--line); }
.case .head h3 { font-size: 1.25rem; }
.case .body { padding: 1.5rem; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1.75rem; }
.case .body h4 { font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); margin: 0 0 .5rem; font-weight: 500; }
.case .body p { color: var(--muted); font-size: 14.5px; margin: 0; }
.case .foot { padding: 1.1rem 1.5rem; background: var(--bg-alt); border-top: 1px solid var(--line); display: flex; gap: 2.25rem; flex-wrap: wrap; }
.case .foot b { font-family: var(--mono); color: var(--accent); font-weight: 500; }
.case .foot span { font-size: 13.5px; color: var(--dim); }

/* ---------- pricing ---------- */
.tier { background: var(--panel); border: 1px solid var(--line); border-radius: 11px; padding: 1.75rem; display: flex; flex-direction: column; }
.tier.featured { border-color: rgba(94,234,212,.35); box-shadow: 0 0 0 1px rgba(94,234,212,.08), 0 18px 50px -30px rgba(94,234,212,.35); }
.tier .price { font-size: 1.75rem; font-weight: 640; letter-spacing: -.03em; margin: .35rem 0 .1rem; }
.tier .price small { font-size: 13px; font-weight: 400; color: var(--dim); letter-spacing: 0; }
.tier ul.ticks { margin: 1.25rem 0 1.75rem; flex: 1; }
.tier .btn { justify-content: center; }

/* ---------- form ---------- */
form.enquiry { display: grid; gap: 1rem; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
label { display: block; font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); margin-bottom: .45rem; }
input, select, textarea {
  width: 100%; background: var(--bg); color: var(--ink);
  border: 1px solid var(--line); border-radius: 7px;
  padding: .7rem .85rem; font: inherit; font-size: 15px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent-d); box-shadow: 0 0 0 3px rgba(94,234,212,.1); }
textarea { min-height: 148px; resize: vertical; }
.form-note { font-size: 13px; color: var(--dim); }

/* ---------- footer ---------- */
footer.site {
  border-top: 1px solid var(--line); background: var(--bg-alt);
  padding: 3.25rem 0 2rem; margin-top: 0;
}
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; }
footer.site h5 { font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); margin: 0 0 .9rem; font-weight: 500; }
footer.site ul { list-style: none; margin: 0; padding: 0; }
footer.site li { margin-bottom: .45rem; }
footer.site a { color: var(--muted); font-size: 14px; }
footer.site a:hover { color: var(--ink); text-decoration: none; }
.foot-bottom {
  margin-top: 2.75rem; padding-top: 1.5rem; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11.5px; color: var(--dim);
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .g3, .g4, .metrics, .case .body, .foot-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .split { grid-template-columns: 1fr; gap: 2.25rem; }
  .foot-grid { gap: 1.75rem 2rem; }
}
@media (max-width: 640px) {
  nav.main { gap: 1rem; }
  nav.main a { font-size: 13px; }
  nav.main .btn { display: none; }
  .g2, .g3, .g4, .metrics, .case .body, .row2, .foot-grid { grid-template-columns: 1fr; }
  section { padding: 3.5rem 0; }
  .hero { padding: 4rem 0 3rem; }
}

/* ---------- case diagrams ---------- */
.case .fig { padding: 0 1.5rem 1.5rem; }
.fig-scroll {
  overflow-x: auto; background: #06080a;
  border: 1px solid var(--line); border-radius: 9px;
}
.fig-scroll svg { display: block; width: 100%; min-width: 660px; height: auto; }
.fig-cap {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--dim); margin: .7rem 0 0;
}