:root {
  --zk-bg: #000000;
  --zk-surface: #050704;
  --zk-surface-muted: #0B0F08;
  --zk-lime: #C5FF4A;
  --zk-text: #FFFFFF;
  --zk-soft: #C5C5C5;
  --zk-muted: #7A7A7A;
  --zk-border: #313131;
  --zk-border-muted: #3D3D3D;
  --zk-danger: #ff808b;
  --zk-warning: #f4be5e;
  --zk-success-bg: #142000;
  --font-display: "PT Serif", Georgia, serif;
  --font-ui: "Inter Tight", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}
html[data-theme="light"] {
  --zk-bg: #f7f7f0;
  --zk-surface: #ffffff;
  --zk-surface-muted: #eef4df;
  --zk-text: #060805;
  --zk-soft: #283022;
  --zk-muted: #5d6655;
  --zk-border: #c8d6b0;
  --zk-border-muted: #d9e2c8;
  --zk-success-bg: #e7ffd0;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--zk-bg);
  color: var(--zk-text);
  font-family: var(--font-ui);
  letter-spacing: .02em;
}
.grid-noise {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image: radial-gradient(rgba(197,255,74,.22) 1px, transparent 1px), linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 28px 28px, 100% 96px;
  opacity: .32;
}
.app-shell { position: relative; z-index: 1; width: min(1660px, calc(100vw - 40px)); margin: 0 auto; padding: 24px 0 48px; }
.label { font: 600 11px/1.55 var(--font-ui); letter-spacing: .22em; text-transform: uppercase; color: var(--zk-muted); }
.mono { font-family: var(--font-mono); }
.display { font-family: var(--font-display); font-weight: 400; letter-spacing: -.028em; line-height: .96; }
.lime { color: var(--zk-lime); font-style: italic; }
.card { border: 1px solid var(--zk-border); background: color-mix(in srgb, var(--zk-bg) 88%, var(--zk-lime) 2%); border-radius: 0; }
button, input, textarea, select { font-family: inherit; }
button, .btn { border: 1px solid var(--zk-border); background: var(--zk-bg); color: var(--zk-text); min-height: 44px; padding: 0 16px; letter-spacing: .18em; text-transform: uppercase; font-size: 11px; cursor: pointer; display: inline-flex; gap: 10px; align-items: center; justify-content: center; text-decoration: none; }
button.primary, .btn.primary { background: var(--zk-lime); color: #000; border-color: var(--zk-lime); font-weight: 700; }
button:hover, .btn:hover { border-color: var(--zk-lime); color: var(--zk-lime); }
button.primary:hover { color: #000; filter: brightness(.92); }
input, textarea, select { width: 100%; background: var(--zk-bg); color: var(--zk-text); border: 1px solid var(--zk-border); border-radius: 0; padding: 13px 14px; outline: none; }
textarea { min-height: 260px; font-family: var(--font-mono); font-size: 12px; line-height: 1.6; }
input:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--zk-lime); outline-offset: 2px; }
.login { min-height: calc(100vh - 80px); display: grid; place-items: center; }
.login-panel { width: min(980px, 100%); display: grid; grid-template-columns: 1.1fr .9fr; border: 1px solid var(--zk-border); background: var(--zk-bg); }
.login-copy { padding: 56px; border-right: 1px solid var(--zk-border); }
.login-copy h1 { font-size: clamp(56px, 7vw, 112px); margin: 30px 0; }
.login-form { padding: 56px; display: flex; flex-direction: column; gap: 18px; justify-content: center; }
.topbar { position: sticky; top: 0; z-index: 5; display: grid; grid-template-columns: 240px 1fr auto; align-items: stretch; border: 1px solid var(--zk-border); background: color-mix(in srgb, var(--zk-bg) 94%, transparent); backdrop-filter: blur(14px); }
.brand { padding: 18px; border-right: 1px solid var(--zk-border); }
.brand strong { font-family: var(--font-display); font-size: 28px; font-weight: 400; }
.nav { display: flex; flex-wrap: wrap; }
.nav button { border-width: 0 1px 0 0; min-height: 100%; background: transparent; }
.nav button.active { background: var(--zk-lime); color: #000; }
.actions { display: flex; }
.actions button { border-width: 0 0 0 1px; }
.hero { margin-top: 28px; display: grid; grid-template-columns: 1.12fr .88fr; gap: 0; border: 1px solid var(--zk-border); min-height: 420px; }
.hero-left { padding: 46px; border-right: 1px solid var(--zk-border); position: relative; overflow: hidden; }
.hero-left h1 { font-size: clamp(52px, 6vw, 104px); margin: 22px 0 26px; max-width: 920px; }
.hero-right { padding: 28px; display: grid; grid-template-rows: auto 1fr auto; gap: 22px; }
.status-strip { display: flex; flex-wrap: wrap; gap: 10px; border-bottom: 1px solid var(--zk-border); padding-bottom: 20px; }
.status-pill { border: 1px solid var(--zk-border); padding: 10px 12px; color: var(--zk-soft); font-size: 12px; }
.status-pill strong { color: var(--zk-lime); }
.status-pill strong { margin-right: 4px; }
.proof-terminal { border: 1px solid var(--zk-border); padding: 22px; background: #000; color: #fff; min-height: 235px; }
html[data-theme="light"] .proof-terminal { background: #050704; color: #fff; }
.terminal-line { color: var(--zk-lime); font-family: var(--font-mono); font-size: 12px; overflow-wrap: anywhere; }
.pipeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 22px 0; }
.pipeline div { border-top: 1px solid rgba(197,255,74,.55); padding-top: 10px; font-family: var(--font-mono); font-size: 11px; }
.dashboard-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; margin-top: 16px; }
.panel { padding: 22px; border: 1px solid var(--zk-border); background: color-mix(in srgb, var(--zk-bg) 96%, var(--zk-lime) 2%); min-height: 180px; }
.panel h2, .panel h3 { margin: 10px 0 14px; font-family: var(--font-display); font-weight: 400; letter-spacing: -.02em; }
.panel h2 { font-size: clamp(32px, 3.2vw, 56px); }
.panel h3 { font-size: 28px; }
.col-3 { grid-column: span 3; } .col-4 { grid-column: span 4; } .col-5 { grid-column: span 5; } .col-6 { grid-column: span 6; } .col-7 { grid-column: span 7; } .col-8 { grid-column: span 8; } .col-12 { grid-column: span 12; }
.metric { font-family: var(--font-display); font-size: 48px; line-height: 1; letter-spacing: -.04em; }
.muted { color: var(--zk-muted); } .soft { color: var(--zk-soft); }
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 8px 18px; font-size: 13px; }
.kv div:nth-child(odd) { color: var(--zk-muted); text-transform: uppercase; letter-spacing: .12em; font-size: 10px; }
.table { width: 100%; border-collapse: collapse; font-size: 12px; }
.table th, .table td { text-align: left; border-bottom: 1px solid var(--zk-border); padding: 10px 8px; vertical-align: top; }
.table th { color: var(--zk-muted); text-transform: uppercase; font-size: 10px; letter-spacing: .18em; }
.logbox { max-height: 360px; overflow: auto; border: 1px solid var(--zk-border); padding: 16px; background: #000; color: #c5ff4a; font-family: var(--font-mono); font-size: 11px; line-height: 1.55; white-space: pre-wrap; }
html[data-theme="light"] .logbox { background: #050704; }
.section { display: none; } .section.active { display: block; }
.file-layout { display: grid; grid-template-columns: 360px 1fr; gap: 16px; }
.file-list { max-height: 560px; overflow: auto; }
.file-row { width: 100%; display: grid; grid-template-columns: 24px 1fr auto; align-items: center; gap: 10px; border-bottom: 1px solid var(--zk-border); padding: 10px; background: transparent; color: var(--zk-text); text-align: left; min-height: auto; text-transform: none; letter-spacing: 0; font-size: 13px; }
.addon-card { display: grid; grid-template-columns: 1fr auto; gap: 20px; padding: 18px; border: 1px solid var(--zk-border); margin-bottom: 12px; }
.banner { border: 1px solid var(--zk-lime); color: var(--zk-lime); padding: 12px 14px; margin: 16px 0; font-family: var(--font-mono); font-size: 12px; }
.error { color: var(--zk-danger); }
@media (max-width: 1100px) {
  .topbar, .hero, .login-panel, .file-layout { grid-template-columns: 1fr; }
  .hero-left, .login-copy { border-right: 0; border-bottom: 1px solid var(--zk-border); }
  .col-3, .col-4, .col-5, .col-6, .col-7, .col-8 { grid-column: span 12; }
}
@media (prefers-reduced-motion: no-preference) {
  .status-pill { transition: border-color .2s, color .2s; }
}