/* InfraScore — Phase 0 website
   Terminal variant per DESIGN.md
   v0.1 — 2026-04-22 */

:root {
  --bg:            #0a0e0a;
  --bg-panel:      #0f1410;
  --bg-surface:    #141a15;
  --phosphor:      #4aff8c;
  --phosphor-dim:  #3aa864;
  --phosphor-mute: #2b6943;
  --amber:         #ffa83e;
  --amber-dim:     #9e6525;
  --alarm:         #ff5545;
  --white:         #e8ffe8;

  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-crt:  'VT323', 'JetBrains Mono', monospace;

  --max-reading: 74ch;
  --max-layout:  1120px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; background: var(--bg); }

body {
  background: var(--bg);
  color: var(--phosphor);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: 0;
  font-feature-settings: "kern", "liga" 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  position: relative;
  text-shadow: 0 0 1px rgba(74, 255, 140, 0.4);
}

/* CRT scanline overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0,0,0,0.18) 3px,
    rgba(0,0,0,0.18) 3px
  );
  z-index: 100;
  opacity: 0.5;
  mix-blend-mode: multiply;
}

.container {
  max-width: var(--max-layout);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.narrow {
  max-width: var(--max-reading);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

a {
  color: var(--phosphor);
  text-decoration: none;
  border-bottom: 1px solid var(--phosphor-mute);
}
a:hover {
  color: var(--white);
  border-bottom-color: var(--phosphor);
}

/* blinking cursor */
@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}
.blink {
  animation: blink 1.06s steps(1, end) infinite;
  display: inline-block;
}

/* ─────────────── SYSTEM BANNER ─────────────── */
.sysbar {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--phosphor-mute);
  padding: 6px 0;
  font-size: 12px;
  color: var(--phosphor-dim);
}
.sysbar .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.sysbar .cursor { color: var(--phosphor); }

/* ─────────────── NAV ─────────────── */
nav {
  border-bottom: 1px solid var(--phosphor-mute);
  padding: var(--space-6) 0;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}
nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.brand {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--white);
  border-bottom: none;
}
.brand .amber-dot { color: var(--amber); }

.nav-links {
  display: flex;
  gap: var(--space-4);
  list-style: none;
  font-size: 13px;
  flex-wrap: wrap;
}
.nav-links a {
  font-family: var(--font-mono);
  color: var(--phosphor-dim);
  border-bottom: none;
}
.nav-links a::before { content: "[ "; color: var(--phosphor-mute); }
.nav-links a::after  { content: " ]"; color: var(--phosphor-mute); }
.nav-links a:hover { color: var(--phosphor); }

/* ─────────────── HERO ─────────────── */
.hero {
  padding: var(--space-16) 0 var(--space-12);
  border-bottom: 1px solid var(--phosphor-mute);
}
.hero-prompt {
  color: var(--phosphor-dim);
  font-size: 13px;
  margin-bottom: var(--space-6);
}
.hero-prompt .user { color: var(--amber); }
.hero-prompt .path { color: var(--phosphor-dim); }
.hero-prompt .cmd  { color: var(--white); }

.hero h1 {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.005em;
  color: var(--white);
  margin-bottom: var(--space-6);
  max-width: 920px;
}
.hero h1 .alarm { color: var(--alarm); }

.hero-sub {
  font-size: 16px;
  max-width: 70ch;
  color: var(--phosphor);
  margin-bottom: var(--space-8);
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-size: 14px;
}

/* ─────────────── BUTTONS ─────────────── */
.btn {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  padding: 10px 16px;
  background: transparent;
  color: var(--phosphor);
  border: 1px solid var(--phosphor);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  letter-spacing: 0.04em;
  transition: background 0.1s ease;
  border-radius: 0;
}
.btn::before { content: "[ "; color: var(--phosphor-mute); }
.btn::after  { content: " ]"; color: var(--phosphor-mute); }
.btn:hover { background: var(--phosphor-mute); color: var(--white); border-color: var(--phosphor); }

.btn-amber { color: var(--amber); border-color: var(--amber); }
.btn-amber::before, .btn-amber::after { color: var(--amber-dim); }
.btn-amber:hover { background: var(--amber-dim); color: var(--white); border-color: var(--amber); }

.btn-ghost { border-color: var(--phosphor-mute); color: var(--phosphor-dim); }
.btn-ghost:hover { color: var(--phosphor); border-color: var(--phosphor); background: transparent; }

/* ─────────────── SECTIONS ─────────────── */
section.block {
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--phosphor-mute);
}
.section-label {
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.12em;
  margin-bottom: var(--space-4);
}
.section-label::before { content: "── "; color: var(--amber-dim); }
.section-head {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 28px;
  line-height: 1.18;
  color: var(--white);
  margin-bottom: var(--space-4);
  max-width: 840px;
}
.section-intro {
  font-size: 15px;
  max-width: var(--max-reading);
  color: var(--phosphor-dim);
  margin-bottom: var(--space-8);
}

/* ─────────────── FRAME (bordered panel) ─────────────── */
.frame {
  border: 1px solid var(--phosphor-mute);
  background: var(--bg-panel);
  padding: var(--space-8);
  position: relative;
}
.frame-title {
  position: absolute;
  top: -10px;
  left: 16px;
  background: var(--bg);
  padding: 0 8px;
  font-size: 12px;
  color: var(--phosphor-dim);
  letter-spacing: 0.04em;
}
.frame-title::before { content: "┤ "; color: var(--phosphor-mute); }
.frame-title::after  { content: " ├"; color: var(--phosphor-mute); }

/* ─────────────── SERVICES LISTING (ls -la style) ─────────────── */
.services-listing {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.85;
}
.services-listing .row {
  display: grid;
  grid-template-columns: 50px 80px 100px 1fr;
  gap: var(--space-4);
  padding: 4px 0;
  border-bottom: 1px dashed var(--phosphor-mute);
  align-items: baseline;
}
.services-listing .row:last-of-type { border-bottom: none; }
.services-listing .id    { color: var(--phosphor-mute); }
.services-listing .size  { color: var(--amber); text-align: right; }
.services-listing .time  { color: var(--phosphor-dim); }
.services-listing .name  { color: var(--white); font-weight: 500; }
.services-listing .desc  {
  color: var(--phosphor-dim);
  font-size: 13px;
  display: block;
  padding-left: 230px;
  margin-top: 4px;
  margin-bottom: var(--space-3);
  max-width: 74ch;
  line-height: 1.55;
}
@media (max-width: 720px) {
  .services-listing .row { grid-template-columns: 1fr; gap: 2px; }
  .services-listing .size { text-align: left; }
  .services-listing .desc { padding-left: 0; }
}

/* ─────────────── SCORECARD (the signature) ─────────────── */
.scorecard-wrap {
  background: var(--bg-panel);
  border: 1px solid var(--phosphor-mute);
  padding: var(--space-8);
  overflow-x: auto;
}
.scorecard {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  white-space: pre;
  color: var(--phosphor);
  font-feature-settings: "tnum" 1, "liga" 0;
}
.scorecard .w  { color: var(--white); font-weight: 500; }
.scorecard .a  { color: var(--amber); }
.scorecard .al { color: var(--alarm); font-weight: 500; }
.scorecard .m  { color: var(--phosphor-mute); }

/* ─────────────── METHODOLOGY LIST ─────────────── */
.methodology {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.65;
  counter-reset: q;
  max-width: var(--max-reading);
}
.methodology li {
  list-style: none;
  padding: var(--space-4) 0 var(--space-4) var(--space-8);
  border-bottom: 1px dashed var(--phosphor-mute);
  position: relative;
  counter-increment: q;
}
.methodology li::before {
  content: "0" counter(q);
  position: absolute;
  left: 0;
  top: var(--space-4);
  color: var(--amber);
  font-weight: 700;
}
.methodology li:last-child { border-bottom: none; }
.methodology li em { color: var(--white); font-style: normal; font-weight: 500; }

/* ─────────────── FORM COMPONENTS ─────────────── */
.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  align-items: center;
}
.form-row label {
  font-size: 12px;
  color: var(--phosphor-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}
.input, textarea.input {
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 10px 14px;
  background: var(--bg-panel);
  color: var(--white);
  border: 1px solid var(--phosphor-mute);
  border-radius: 0;
  letter-spacing: 0.01em;
  width: 100%;
}
.input:focus, textarea.input:focus {
  outline: none;
  border-color: var(--phosphor);
  background: var(--bg-surface);
}
.input::placeholder { color: var(--phosphor-mute); }
textarea.input { resize: vertical; min-height: 120px; font-family: var(--font-mono); }

.subscribe-form {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  max-width: 520px;
}
.subscribe-form .input { flex: 1; min-width: 260px; width: auto; }

.contact-form { max-width: 680px; }
.contact-form .field { margin-bottom: var(--space-4); }
.contact-form .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 720px) { .contact-form .grid-2 { grid-template-columns: 1fr; } }

.form-note {
  font-size: 13px;
  color: var(--phosphor-dim);
  margin-top: var(--space-4);
  max-width: var(--max-reading);
  line-height: 1.55;
}

/* ─────────────── CTA SECTIONS (Reports) ─────────────── */
.reports-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: flex-start;
  max-width: var(--max-reading);
}

.nda-note {
  font-size: 12px;
  color: var(--phosphor-mute);
  letter-spacing: 0.04em;
  max-width: 60ch;
  line-height: 1.55;
  border-left: 1px solid var(--phosphor-mute);
  padding-left: var(--space-3);
}

/* ─────────────── FOOTER ─────────────── */
footer {
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid var(--phosphor-mute);
  font-size: 12px;
  color: var(--phosphor-mute);
  margin-top: var(--space-8);
}
footer .container {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-4);
  align-items: baseline;
}
footer .col-l { text-align: left; }
footer .col-c { text-align: center; }
footer .col-r { text-align: right; }
footer .col-r .blink { color: var(--phosphor-dim); }
@media (max-width: 720px) {
  footer .container { grid-template-columns: 1fr; text-align: left; }
  footer .col-c, footer .col-r { text-align: left; }
}

/* ─────────────── MOBILE RESPONSIVE ─────────────── */
@media (max-width: 720px) {
  .section-head { font-size: 22px; }
  .hero h1 { font-size: 28px; }
  nav .container { gap: var(--space-3); }
  .nav-links { font-size: 12px; gap: var(--space-3); }
}

/* ─────────────── PRINT ─────────────── */
@media print {
  body {
    background: #fff;
    color: #111;
    text-shadow: none;
    font-size: 11pt;
  }
  body::before { display: none; }
  nav, .sysbar { display: none; }
  .hero, section.block, footer {
    border-color: #ccc;
    color: #111;
  }
  a { color: #111; border-bottom: none; }
  .brand, .hero h1, .section-head { color: #111; }
  .section-label, .services-listing .size, .methodology li::before { color: #555; }
  .hero h1 .alarm, .scorecard .al, .scorecard .w { color: #111; font-weight: 700; }
  .frame, .scorecard-wrap { background: #fff; border-color: #ccc; }
  .btn, .btn-amber { display: none; }
  .blink { animation: none; opacity: 0; }
}