/* ============================================================
   Derabia — Blueprint
   Ported from the Claude Design source "Derabia Blueprint.dc.html".
   Palette, keyframes and metrics are kept 1:1 with the design.
   ============================================================ */

html { scroll-behavior: smooth; }

:root {
  --bg:#003A86; --panel:#00306E; --panel-hover:#0A4A9E;
  --ink:#EAF3FF; --accent:#7FC4FF; --muted:#B9D4F2; --sub:#C6DCF5; --dim:#8FB4DC;
  --line:rgba(255,255,255,0.34); --line-soft:rgba(255,255,255,0.22); --on-solid:#003A86;
  --glow:rgba(2,122,224,0.92); --glow-fade:rgba(2,122,224,0);
  --grid:rgba(255,255,255,0.10); --grid-major:rgba(255,255,255,0.20);
  --grid-panel:rgba(255,255,255,0.07); --line-strong:rgba(255,255,255,0.55); --line-faint:rgba(255,255,255,0.10);
  --tint:rgba(255,255,255,0.07); --tint-soft:rgba(255,255,255,0.04);
  --ease-out:cubic-bezier(0.16,1,0.3,1);
}

html[data-theme="dark"] {
  --bg:#0A141E; --panel:#16212C; --panel-hover:#25313D;
  --ink:#E8EDF2; --accent:#8FB6D8; --muted:#A7B6C4; --sub:#94A5B4; --dim:#7C8B99;
  --line:rgba(255,255,255,0.26); --line-soft:rgba(255,255,255,0.16); --on-solid:#0A141E;
  --glow:rgba(50,60,70,0.95); --glow-fade:rgba(50,60,70,0);
  --grid:rgba(150,180,210,0.07); --grid-major:rgba(150,180,210,0.15);
  --grid-panel:rgba(150,180,210,0.05); --line-strong:rgba(210,225,240,0.38); --line-faint:rgba(150,180,210,0.08);
  --tint:rgba(160,195,230,0.09); --tint-soft:rgba(160,195,230,0.05);
}

html, body { margin:0; padding:0; background:var(--bg); transition:background 0.35s ease; }
* { box-sizing:border-box; }
a { color:var(--ink); text-decoration:none; }
a:hover { color:var(--accent); }
::selection { background:#FFFFFF; color:var(--on-solid); }
::-moz-selection { background:#FFFFFF; color:var(--on-solid); }

@keyframes bp-fade { from { opacity:0; transform:translateY(12px);} to { opacity:1; transform:none;} }
@keyframes bp-draw { from { stroke-dashoffset:var(--len);} to { stroke-dashoffset:0;} }
@keyframes bp-flow { to { stroke-dashoffset:-48; } }
@keyframes bp-node { 0%,100% { opacity:0.35; } 50% { opacity:1; } }
@keyframes bp-appear { from { opacity:0; } to { opacity:1; } }
@keyframes bp-scan { from { transform:translateX(-130%);} to { transform:translateX(330%);} }
@keyframes bp-aperture { from { transform:scale(0.18); opacity:0;} 40% { opacity:1;} to { transform:scale(1); opacity:1;} }

/* ---------- shell ---------- */

.site {
  width:100%; background:var(--bg); color:var(--ink);
  transition:background 0.35s ease, color 0.35s ease;
  font-family:'Barlow', system-ui, sans-serif;
}

.progress {
  position:fixed; z-index:60; top:0; left:0; height:2px; width:100%;
  transform:scaleX(0); transform-origin:0 50%; background:var(--accent); pointer-events:none;
}

.grid-bg {
  position:absolute; inset:0; pointer-events:none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:26px 26px, 26px 26px;
}

.grid-bg--major {
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px);
  background-size:26px 26px, 26px 26px, 130px 130px, 130px 130px;
}

.frame { position:absolute; inset:14px; pointer-events:none; border:1px solid var(--line); }

.mono { font-family:'IBM Plex Mono', monospace; }

/* ---------- hero ---------- */

.hero {
  position:relative; width:100%; height:100vh; overflow:hidden;
  display:flex; flex-direction:column;
}

.hero-glow {
  position:absolute; inset:0; pointer-events:none;
  background:radial-gradient(1300px 900px at 26% 26%, var(--glow), var(--glow-fade) 68%);
  transition:background 0.35s ease;
}

/* ---------- header ---------- */

.hdr {
  position:relative; z-index:20; flex:0 0 auto;
  display:flex; align-items:center; justify-content:space-between; gap:28px;
  padding:clamp(20px,3.4vh,30px) clamp(34px,4vw,64px) 0;
}

.logo { height:20px; width:auto; display:block; color:var(--ink); }

.hdr-right { display:flex; align-items:center; gap:clamp(10px,1.2vw,16px); }

.nav {
  display:flex; align-items:center; gap:clamp(18px,2.4vw,34px);
  font-family:'IBM Plex Mono', monospace; font-size:11px;
  letter-spacing:0.14em; text-transform:uppercase;
}

.nav-cta {
  border:1px solid var(--line-strong); color:#FFFFFF; padding:8px 16px; white-space:nowrap;
}
.nav-cta:hover { background:#FFFFFF; color:var(--on-solid); }

.icon-btn {
  flex:0 0 auto; display:inline-flex; align-items:center; justify-content:center;
  width:34px; height:34px; padding:0; background:none;
  border:1px solid var(--line-strong); color:#FFFFFF; cursor:pointer;
}
.icon-btn:hover { background:#FFFFFF; color:var(--on-solid); }
.icon-btn svg { display:block; }

.burger {
  display:none; align-items:center; gap:8px; background:none;
  border:1px solid var(--line-strong); color:#FFFFFF;
  font-family:'IBM Plex Mono', monospace; font-size:10px;
  letter-spacing:0.16em; text-transform:uppercase; padding:9px 14px; cursor:pointer;
}
.burger-lines { display:flex; flex-direction:column; gap:3px; }
.burger-lines span { width:14px; height:1px; background:#FFFFFF; display:block; }

/* ---------- menu sheet ---------- */

.menu-scrim { position:fixed; z-index:15; inset:0; }

.menu-panel {
  position:absolute; z-index:20;
  left:clamp(34px,4vw,64px); right:clamp(34px,4vw,64px);
  top:calc(100% + 14px); max-height:none; overflow:auto;
  background:var(--panel); border:1px solid var(--line);
  box-shadow:0 24px 60px rgba(0,8,18,0.5);
  animation:bp-appear 0.18s ease both;
}

.menu-panel .grid-bg {
  background-image:
    linear-gradient(var(--grid-panel) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-panel) 1px, transparent 1px);
}

.menu-head {
  position:relative; display:flex; align-items:baseline; justify-content:space-between; gap:20px;
  padding:12px 20px; border-bottom:1px solid var(--line-soft);
  font-family:'IBM Plex Mono', monospace; font-size:9.5px;
  letter-spacing:0.16em; text-transform:uppercase;
}
.menu-title { color:var(--accent); }
.menu-back { display:none; color:#FFFFFF; }

.menu-items { position:relative; display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:1px; }
.menu-items.is-many { grid-template-columns:repeat(auto-fit, minmax(210px, 1fr)); }

.menu-item {
  background:var(--panel); box-shadow:0 0 0 1px var(--line-soft);
  display:flex; flex-direction:column; gap:4px; padding:13px 20px 15px; min-width:0;
}
.menu-item:hover { background:var(--tint); }
.menu-item-no { font-family:'IBM Plex Mono', monospace; font-size:9px; letter-spacing:0.14em; color:var(--accent); }
.menu-item-name { font-size:12.5px; font-weight:600; letter-spacing:-0.005em; color:#FFFFFF; }
.menu-item-desc { font-size:11px; line-height:1.4; color:var(--muted); }

/* ---------- hero main ---------- */

.hero-main {
  position:relative; flex:1 1 auto; min-height:0; overflow:hidden;
  display:grid; align-content:center;
  grid-template-columns:minmax(0,1.02fr) minmax(300px,0.98fr);
  align-items:center; gap:clamp(24px,3vw,56px);
  padding:clamp(6px,1.6vh,32px) clamp(34px,4vw,64px);
}

.hero-copy { min-height:0; animation:bp-fade 0.6s ease both; }

.eyebrow {
  display:flex; align-items:center; gap:10px;
  font-family:'IBM Plex Mono', monospace; font-size:11px;
  letter-spacing:0.2em; text-transform:uppercase; color:var(--accent); margin-bottom:16px;
}
.hero-copy .eyebrow { margin-bottom:clamp(8px,1.6vh,20px); }

.rule { width:26px; height:1px; background:var(--accent); display:inline-block; transform-origin:0 50%; }

.h1 {
  margin:0; font-size:min(4.6vw, 7.2vh, 80px);
  line-height:1.04; letter-spacing:-0.03em; font-weight:600;
}
.h1 em { font-style:normal; color:var(--accent); }

.hero-lead {
  margin:clamp(10px,1.8vh,22px) 0 0; max-width:520px;
  font-size:clamp(13.5px,1.1vw,17px); line-height:1.5; color:var(--muted);
}

.btn-row { display:flex; gap:12px; flex-wrap:wrap; margin-top:clamp(12px,2vh,26px); }

.btn { display:inline-flex; align-items:center; white-space:nowrap; padding:12px 22px; font-size:14px; }
.btn-solid { background:#FFFFFF; color:var(--on-solid); font-weight:600; }
.btn-solid:hover { background:var(--accent); color:var(--on-solid); }
.btn-ghost { border:1px solid var(--line); font-weight:500; }
.btn-ghost:hover { border-color:var(--accent); color:var(--accent); }
.btn-ghost-sm {
  display:inline-flex; align-items:center; border:1px solid var(--line);
  padding:11px 20px; font-size:13.5px; font-weight:500; white-space:nowrap;
}
.btn-ghost-sm:hover { border-color:var(--accent); color:var(--accent); }

.hero-diagram {
  position:relative; height:100%; min-height:0;
  display:flex; align-items:center; justify-content:center;
  animation:bp-fade 0.9s ease both;
}
.hero-diagram svg {
  width:100%; height:100%; max-height:100%; overflow:visible;
  font-family:'IBM Plex Mono', monospace;
}

/* ---------- hero footer strip ---------- */

.hero-footer {
  position:relative; flex:0 0 auto;
  margin:0 clamp(34px,4vw,64px) clamp(20px,3.4vh,30px);
  border:1px solid var(--line);
  display:grid; grid-template-columns:repeat(4, minmax(0,1fr)); gap:1px;
  background:var(--line-soft); font-family:'IBM Plex Mono', monospace;
}
.hf-cell {
  position:relative; background:var(--bg); padding:10px 14px 11px;
  display:flex; flex-direction:column; gap:5px; min-width:0;
  transition:background 0.2s ease;
}
.hf-cell:hover { background:var(--tint); }
.hf-k {
  display:flex; align-items:center; gap:7px; font-size:8.5px;
  letter-spacing:0.22em; text-transform:uppercase; color:var(--dim);
}
.hf-dot { width:4px; height:4px; flex:0 0 auto; background:var(--accent); display:block; }
.hf-v {
  font-size:11px; letter-spacing:0.03em; line-height:1.35; color:var(--ink);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}

/* ---------- generic sheet ---------- */

.sheet {
  position:relative; width:100%; overflow:hidden; border-top:1px solid var(--line);
  padding:clamp(56px,9vh,110px) clamp(34px,4vw,64px) clamp(52px,8vh,96px);
}
.sheet--panel { background:var(--panel); transition:background 0.35s ease; }
.sheet--contact { padding:clamp(64px,11vh,130px) clamp(34px,4vw,64px) clamp(24px,3vh,34px); }

.sheet-head {
  position:relative; display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,0.9fr);
  gap:clamp(22px,3vw,64px); align-items:end; margin-bottom:clamp(30px,5vh,58px);
}
.sheet-head--contact { gap:clamp(24px,3vw,64px); margin-bottom:0; }

.h2 {
  margin:0; font-size:clamp(34px, 3.6vw, 60px);
  line-height:1.06; letter-spacing:-0.025em; font-weight:600; text-wrap:pretty;
}
.h2--contact { font-size:min(4.6vw, 7.2vh, 80px); line-height:1.04; letter-spacing:-0.03em; }

.sheet-lead {
  margin:0; max-width:440px; font-size:clamp(13.5px,1vw,16px);
  line-height:1.55; color:var(--muted); text-wrap:pretty;
}
.sheet-lead--narrow { max-width:420px; }

/* ---------- skeletons ---------- */

.skeleton { position:relative; }
.skeleton[hidden], .loaded[hidden] { display:none; }

.skeleton-label {
  display:flex; align-items:center; gap:9px; margin-bottom:13px;
  font-family:'IBM Plex Mono', monospace; font-size:9.5px;
  letter-spacing:0.18em; text-transform:uppercase; color:var(--dim);
}
.skeleton-dot { width:6px; height:6px; background:var(--accent); display:block; animation:bp-node 1.3s ease-in-out infinite; }

.sk-card {
  position:relative; overflow:hidden; background:var(--bg);
  padding:clamp(18px,2.2vw,26px) clamp(16px,1.8vw,24px) clamp(20px,2.4vw,28px);
  display:flex; flex-direction:column; gap:12px; min-height:158px;
}
.sk-card--panel { background:var(--panel); }
.sk-card--product { background:var(--panel); padding:clamp(22px,2.6vw,34px); gap:14px; min-height:300px; }
.sk-card--studio { background:var(--panel); min-height:176px; }
.sk-card--row {
  background:none; padding:clamp(20px,2.6vw,32px) clamp(18px,2.2vw,30px);
  min-height:0; box-shadow:0 -1px 0 var(--line-soft);
}
.sk-a { background:var(--line-soft); }
.sk-b { background:var(--line-faint); }
.sk-end { margin-top:auto; }
.sk-scan {
  position:absolute; top:0; bottom:0; left:0; width:36%; pointer-events:none;
  background:linear-gradient(90deg, transparent, var(--grid-major), transparent);
  animation:bp-scan 1.9s linear infinite;
}

/* ---------- services ---------- */

.svc-grid {
  position:relative; display:grid; grid-template-columns:repeat(4, minmax(0,1fr));
  gap:1px; background:var(--line-soft); border:1px solid var(--line-soft);
}
.svc-card {
  position:relative; background:var(--bg); display:flex; flex-direction:column; gap:10px;
  padding:clamp(18px,2.2vw,26px) clamp(16px,1.8vw,24px) clamp(20px,2.4vw,28px); min-width:0;
}
.hover-bar {
  position:absolute; left:0; top:0; width:2px; height:100%; background:var(--accent);
  transform:scaleY(0); transform-origin:0 100%;
  transition:transform 0.45s var(--ease-out);
}
.card-no { font-family:'IBM Plex Mono', monospace; font-size:9.5px; letter-spacing:0.18em; color:var(--accent); }
.card-name { font-size:clamp(15px,1.25vw,19px); font-weight:600; letter-spacing:-0.01em; line-height:1.15; color:var(--ink); }
.card-desc { font-size:13px; line-height:1.5; color:var(--muted); text-wrap:pretty; }
.card-tags {
  margin-top:auto; padding-top:14px; font-family:'IBM Plex Mono', monospace;
  font-size:9.5px; letter-spacing:0.1em; line-height:1.8; color:var(--sub);
}

/* ---------- products ---------- */

.prod-grid {
  position:relative; display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:1px; background:var(--line-soft); border:1px solid var(--line-soft);
}
.prod-main {
  background:var(--panel); padding:clamp(22px,2.6vw,34px);
  display:flex; flex-direction:column; min-width:0;
}
.prod-kicker { font-family:'IBM Plex Mono', monospace; font-size:9.5px; letter-spacing:0.18em; color:var(--accent); }
.prod-title { margin:12px 0 0; font-size:clamp(30px,3vw,48px); line-height:1; letter-spacing:-0.02em; font-weight:600; }
.prod-desc { margin:14px 0 0; max-width:420px; font-size:14px; line-height:1.55; color:var(--muted); text-wrap:pretty; }

.tag-row { display:flex; flex-wrap:wrap; gap:8px; margin-top:22px; }
.tag {
  font-family:'IBM Plex Mono', monospace; font-size:9.5px; letter-spacing:0.12em;
  text-transform:uppercase; color:var(--sub); background:var(--tint-soft);
  border:1px solid var(--line-soft); padding:7px 10px; line-height:1; white-space:nowrap;
  transition:background 0.25s ease, color 0.25s ease;
}
.tag:hover { background:var(--tint); color:var(--ink); }

.prod-cta { margin-top:auto; padding-top:26px; }

.prod-specs { background:var(--panel); display:grid; grid-template-columns:minmax(0,1fr); align-content:start; }
.spec-row {
  display:grid; grid-template-columns:110px minmax(0,1fr); gap:clamp(10px,2vw,28px);
  padding:clamp(13px,1.5vw,17px) clamp(20px,2.4vw,30px);
  box-shadow:0 -1px 0 var(--line-soft); min-width:0;
}
.spec-k {
  font-family:'IBM Plex Mono', monospace; font-size:9.5px; letter-spacing:0.16em;
  text-transform:uppercase; color:var(--dim); padding-top:2px;
}
.spec-v { font-size:13.5px; line-height:1.45; color:var(--ink); text-wrap:pretty; }

/* ---------- network ---------- */

.net-list { position:relative; border:1px solid var(--line-soft); }
.net-row {
  position:relative; display:grid;
  grid-template-columns:minmax(0,0.85fr) minmax(0,1.4fr) auto;
  gap:clamp(12px,2.4vw,40px); align-items:baseline;
  padding:clamp(20px,2.6vw,32px) clamp(18px,2.2vw,30px);
  box-shadow:0 -1px 0 var(--line-soft); min-width:0; transition:background 0.2s ease;
}
.net-row:hover { background:var(--tint); }
.net-head { display:flex; align-items:baseline; gap:14px; min-width:0; }
.net-no { font-family:'IBM Plex Mono', monospace; font-size:9.5px; letter-spacing:0.18em; color:var(--accent); }
.net-name { font-size:clamp(18px,1.9vw,28px); font-weight:600; letter-spacing:-0.015em; color:var(--ink); }
.net-desc { font-size:13.5px; line-height:1.5; color:var(--muted); text-wrap:pretty; }
.net-tag {
  font-family:'IBM Plex Mono', monospace; font-size:9.5px; letter-spacing:0.16em;
  text-transform:uppercase; color:var(--sub); white-space:nowrap;
}

/* ---------- studios ---------- */

.studio-grid {
  position:relative; display:grid; grid-template-columns:repeat(3, minmax(0,1fr));
  gap:1px; background:var(--line-soft); border:1px solid var(--line-soft);
}
.studio-card {
  background:var(--panel); padding:clamp(20px,2.4vw,30px);
  display:flex; flex-direction:column; gap:11px; min-width:0;
}
.studio-no { font-family:'IBM Plex Mono', monospace; font-size:9.5px; letter-spacing:0.18em; color:var(--accent); }
.studio-name { font-size:clamp(16px,1.4vw,21px); font-weight:600; letter-spacing:-0.01em; color:var(--ink); }
.studio-desc { font-size:13.5px; line-height:1.5; color:var(--muted); text-wrap:pretty; }

.stack-row {
  position:relative; display:flex; flex-wrap:wrap; align-items:center; gap:10px;
  margin-top:-1px; padding:clamp(16px,1.8vw,22px) clamp(18px,2.2vw,26px);
  border:1px solid var(--line-soft);
}
.stack-label {
  display:flex; align-items:center; gap:9px; font-family:'IBM Plex Mono', monospace;
  font-size:9.5px; letter-spacing:0.18em; text-transform:uppercase; color:var(--dim); margin-right:8px;
}
.stack-dash { width:18px; height:1px; background:var(--accent); display:block; }

/* ---------- contact + footer ---------- */

.contact-actions { display:flex; gap:12px; margin-top:24px; flex-wrap:wrap; }

.site-footer {
  position:relative; margin-top:clamp(48px,8vh,96px); padding-top:16px;
  border-top:1px solid var(--line-soft); display:flex; flex-wrap:wrap;
  align-items:center; justify-content:space-between; gap:14px;
  font-family:'IBM Plex Mono', monospace; font-size:9.5px;
  letter-spacing:0.16em; text-transform:uppercase; color:var(--dim);
}
.footer-links { display:flex; flex-wrap:wrap; gap:clamp(14px,2vw,28px); }
.footer-links a { color:var(--dim); }
.footer-links a:hover { color:var(--accent); }

/* ============================================================
   Responsive — breakpoints mirror the design's JS width states
   (mobile < 820, and 1000 / 1180 grid steps).
   ============================================================ */

@media (max-width: 1179px) {
  .svc-grid { grid-template-columns:repeat(2, minmax(0,1fr)); }
}

@media (max-width: 999px) {
  .prod-grid { grid-template-columns:minmax(0,1fr); }
  .net-row { grid-template-columns:minmax(0,1fr); }
}

@media (max-width: 819px) {
  .nav { display:none; }
  .burger { display:inline-flex; }

  .menu-panel {
    position:fixed; left:14px; right:14px; top:72px;
    max-height:calc(100vh - 100px);
  }
  .menu-items, .menu-items.is-many { grid-template-columns:minmax(0, 1fr); }
  .menu-panel:not([data-menu="__root"]) .menu-back { display:inline; }

  .hero-main { grid-template-columns:minmax(0,1fr); }
  .hero-diagram { display:none; }
  .hero-footer { grid-template-columns:repeat(2, minmax(0,1fr)); }

  .h2 { font-size:min(8.4vw, 38px); }
  .h1, .h2--contact { font-size:min(9.5vw, 6.4vh, 44px); }

  .sheet-head { grid-template-columns:minmax(0,1fr); }
  .svc-grid, .studio-grid { grid-template-columns:minmax(0,1fr); }
  .spec-row { grid-template-columns:minmax(0,1fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  .site *, .site *::before, .site *::after {
    animation-duration:0.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.001ms !important;
  }
}