/* ==========================================================================
   INFRAVIZE — Global Stylesheet
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-body);
  font-size: var(--fs-1);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
svg { display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }

:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: 3px;
  border-radius: 2px;
}

/* -------------------------------------------------------------------------
   Type
   ------------------------------------------------------------------------- */
h1, h2, h3, h4, .h1, .h2, .h3, .h4 {
  font-family: var(--f-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}
.h1, h1 { font-size: var(--fs-6); line-height: 1.05; letter-spacing: -0.02em; }
.h2, h2 { font-size: var(--fs-5); line-height: 1.1; letter-spacing: -0.015em; }
.h3, h3 { font-size: var(--fs-3); line-height: 1.25; }
.h4, h4 { font-size: var(--fs-2); line-height: 1.3; font-weight: 600; }

.lede { font-size: var(--fs-2); line-height: 1.55; color: var(--c-ink-dim); font-weight: 400; max-width: 46ch; }
.body-lg { font-size: var(--fs-1); color: var(--c-ink-dim); max-width: 62ch; }
.body { font-size: var(--fs-0); color: var(--c-ink-dim); max-width: 62ch; }

.mono { font-family: var(--f-mono); }
.label {
  font-family: var(--f-mono);
  font-size: var(--fs-000);
  letter-spacing: 0.06em;
  color: var(--c-ink-faint);
}
.label-accent { color: var(--c-blue); }

/* -------------------------------------------------------------------------
   Layout primitives
   ------------------------------------------------------------------------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--sp-5); }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--sp-5); }
@media (max-width: 640px) { .container, .container-narrow { padding: 0 var(--sp-4); } }

section { position: relative; padding: var(--sp-8) 0; }
.section-tight { padding: var(--sp-7) 0; }
.section-divider { border-top: var(--border); }

.grid { display: grid; gap: var(--sp-5); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4, .grid-6 { grid-template-columns: 1fr; }
}

.stack { display: flex; flex-direction: column; }
.row { display: flex; align-items: center; }
.row-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: var(--sp-1); } .gap-2 { gap: var(--sp-2); } .gap-3 { gap: var(--sp-3); }
.gap-4 { gap: var(--sp-4); } .gap-5 { gap: var(--sp-5); }

/* Blueprint grid backdrop */
.grid-backdrop {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--c-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-grid) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, black, transparent 92%);
}

.corner-marks { position: absolute; inset: var(--sp-4); pointer-events: none; opacity: 0.35; }
.corner-marks span { position: absolute; width: 14px; height: 14px; }
.corner-marks span::before, .corner-marks span::after { content: ''; position: absolute; background: var(--c-ink-faint); }
.corner-marks .tl { top: 0; left: 0; } .corner-marks .tr { top: 0; right: 0; }
.corner-marks .bl { bottom: 0; left: 0; } .corner-marks .br { bottom: 0; right: 0; }
.corner-marks span::before { width: 100%; height: 1px; top: 0; }
.corner-marks span::after { width: 1px; height: 100%; left: 0; }
.corner-marks .tr::before, .corner-marks .br::before { right: 0; }
.corner-marks .tr::after, .corner-marks .br::after { left: auto; right: 0; }
.corner-marks .bl::before, .corner-marks .br::before { top: auto; bottom: 0; }

/* -------------------------------------------------------------------------
   Buttons
   ------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  font-family: var(--f-body); font-weight: 600; font-size: var(--fs-0);
  padding: 0.85em 1.4em; border-radius: var(--radius-sm);
  border: 1px solid transparent; transition: all var(--dur-1) var(--ease);
  white-space: nowrap;
}
.btn-primary { background: var(--c-blue); color: var(--c-on-blue); }
.btn-primary:hover { background: #5B9CFF; transform: translateY(-1px); }
.btn-ghost { background: transparent; border-color: var(--c-line); color: var(--c-ink); }
.btn-ghost:hover { border-color: var(--c-blue); color: var(--c-blue); }
.btn-text { background: none; color: var(--c-blue); padding: 0.4em 0; font-weight: 600; border-bottom: 1px solid transparent; }
.btn-text:hover { border-color: var(--c-blue); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.4; cursor: not-allowed; }

/* -------------------------------------------------------------------------
   Navigation
   ------------------------------------------------------------------------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease), backdrop-filter var(--dur-2) var(--ease);
}
.nav.is-scrolled {
  background: rgba(10, 13, 18, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--c-line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: var(--sp-3) 0; }
.nav-logo { display: flex; align-items: center; gap: var(--sp-2); font-family: var(--f-display); font-weight: 700; font-size: var(--fs-1); letter-spacing: -0.01em; }
.nav-logo img { height: 22px; width: auto; }
.nav-links { display: flex; align-items: center; gap: var(--sp-6); }
.nav-links a {
  font-size: var(--fs-00); color: var(--c-ink-dim); font-weight: 500;
  position: relative; padding: 4px 0; transition: color var(--dur-1) var(--ease);
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 1px;
  background: var(--c-blue); transition: width var(--dur-2) var(--ease);
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--c-ink); }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { width: 100%; }
.nav-right { display: flex; align-items: center; gap: var(--sp-4); }
.nav-toggle { display: none; }

@media (max-width: 900px) {
  .nav-links { position: fixed; inset: 60px 0 0 0; background: var(--c-bg); flex-direction: column; align-items: flex-start;
    padding: var(--sp-5); gap: var(--sp-5); border-top: var(--border); transform: translateX(100%); transition: transform var(--dur-2) var(--ease); overflow-y: auto; }
  .nav-links.is-open { transform: translateX(0); }
  .nav-links a { font-size: var(--fs-2); }
  .nav-toggle { display: block; background: none; border: 1px solid var(--c-line); border-radius: var(--radius-sm); width: 40px; height: 40px; position: relative; }
  .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content: ''; position: absolute; left: 10px; right: 10px; height: 1.5px; background: var(--c-ink); transition: transform var(--dur-1) var(--ease), opacity var(--dur-1) var(--ease); }
  .nav-toggle span { top: 50%; transform: translateY(-50%); }
  .nav-toggle span::before { top: -7px; } .nav-toggle span::after { top: 7px; }
  .nav-toggle.is-open span { background: transparent; }
  .nav-toggle.is-open span::before { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-open span::after { transform: translateY(-7px) rotate(-45deg); }
  .nav-right .btn-ghost { display: none; }
}

/* -------------------------------------------------------------------------
   Cards
   ------------------------------------------------------------------------- */
.card {
  background: var(--c-bg-1); border: var(--border); border-radius: var(--radius-md);
  padding: var(--sp-5); transition: border-color var(--dur-2) var(--ease), transform var(--dur-2) var(--ease), background var(--dur-2) var(--ease);
}
.card:hover { border-color: var(--c-blue-dim); background: var(--c-bg-2); }
.card-index { font-family: var(--f-mono); font-size: var(--fs-00); color: var(--c-blue); margin-bottom: var(--sp-3); }
.card h4 { margin-bottom: var(--sp-2); }
.card .body { margin-bottom: var(--sp-3); }
.card-list { display: flex; flex-wrap: wrap; gap: var(--sp-1); margin-top: var(--sp-3); }
.card-list li { font-family: var(--f-mono); font-size: var(--fs-000); color: var(--c-ink-faint); background: var(--c-bg-2); border: 1px solid var(--c-line-soft); border-radius: var(--radius-sm); padding: 3px 8px; }

/* Status tags */
.tag { display: inline-flex; align-items: center; gap: 6px; font-family: var(--f-mono); font-size: var(--fs-000); letter-spacing: 0.04em; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--c-line); color: var(--c-ink-faint); }
.tag::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.tag-dev { color: var(--c-amber); border-color: rgba(232,162,61,0.35); }
.tag-live { color: var(--c-cyan); border-color: rgba(70,225,200,0.35); }
.tag-planned { color: var(--c-ink-faint); }

/* -------------------------------------------------------------------------
   Product cards
   ------------------------------------------------------------------------- */
.product-card { display: flex; flex-direction: column; height: 100%; }
.product-card .row-between { margin-bottom: var(--sp-3); }
.product-card .category { font-family: var(--f-mono); font-size: var(--fs-000); color: var(--c-ink-faint); letter-spacing: 0.04em; }
.product-card h4 { margin-bottom: var(--sp-2); }
.product-card .desc { flex: 1; margin-bottom: var(--sp-4); }
.product-card .meta { display: flex; justify-content: space-between; align-items: center; padding-top: var(--sp-3); border-top: 1px solid var(--c-line-soft); }
.platform-icons { display: flex; gap: var(--sp-2); font-family: var(--f-mono); font-size: var(--fs-000); color: var(--c-ink-faint); }

/* -------------------------------------------------------------------------
   Process / sequence steps
   ------------------------------------------------------------------------- */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); }
@media (max-width: 900px) { .process { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .process { grid-template-columns: 1fr; } }
.process-step { border-top: 2px solid var(--c-line); padding-top: var(--sp-3); position: relative; }
.process-step .num { font-family: var(--f-mono); font-size: var(--fs-0); color: var(--c-blue); display: block; margin-bottom: var(--sp-2); }
.process-step h4 { margin-bottom: var(--sp-2); }

/* Workflow diagram (traditional vs infravize) */
.flow { display: flex; flex-direction: column; gap: 0; }
.flow-node { border: var(--border); border-radius: var(--radius-sm); padding: var(--sp-3) var(--sp-4); background: var(--c-bg-1); font-size: var(--fs-00); text-align: center; }
.flow-node.accent { border-color: var(--c-blue-dim); background: rgba(61,139,253,0.07); color: var(--c-blue); }
.flow-arrow { display: flex; justify-content: center; padding: 6px 0; color: var(--c-ink-faint); }
.flow-arrow svg { width: 14px; height: 14px; }

/* -------------------------------------------------------------------------
   Tabs (disciplines)
   ------------------------------------------------------------------------- */
.tabs-nav { display: flex; flex-wrap: wrap; gap: var(--sp-2); border-bottom: var(--border); margin-bottom: var(--sp-5); }
.tab-btn {
  background: none; border: none; border-bottom: 2px solid transparent; color: var(--c-ink-faint);
  font-family: var(--f-body); font-weight: 600; font-size: var(--fs-00); padding: var(--sp-3) var(--sp-2); margin-bottom: -1px;
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.tab-btn:hover { color: var(--c-ink); }
.tab-btn[aria-selected="true"] { color: var(--c-blue); border-bottom-color: var(--c-blue); }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeIn var(--dur-2) var(--ease); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }
.opportunity-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-2) var(--sp-4); }
@media (max-width: 720px) { .opportunity-list { grid-template-columns: 1fr; } }
.opportunity-list li { display: flex; align-items: baseline; gap: var(--sp-2); font-size: var(--fs-0); color: var(--c-ink-dim); padding: var(--sp-2) 0; border-bottom: 1px solid var(--c-line-soft); }
.opportunity-list li::before { content: ''; width: 5px; height: 5px; background: var(--c-cyan); flex: none; transform: translateY(-2px); }

/* -------------------------------------------------------------------------
   Mock software UI panels
   ------------------------------------------------------------------------- */
.ui-mock { background: var(--c-bg-1); border: var(--border); border-radius: var(--radius-md); overflow: hidden; }
.ui-mock-bar { display: flex; align-items: center; gap: 8px; padding: var(--sp-2) var(--sp-3); border-bottom: var(--border); background: var(--c-bg-2); }
.ui-mock-bar .dots { display: flex; gap: 5px; }
.ui-mock-bar .dots span { width: 8px; height: 8px; border-radius: 50%; background: var(--c-line); }
.ui-mock-bar .title { font-family: var(--f-mono); font-size: var(--fs-000); color: var(--c-ink-faint); letter-spacing: 0.06em; margin-left: var(--sp-2); }
.ui-mock-body { padding: var(--sp-4); }
.ui-field-row { display: flex; justify-content: space-between; align-items: center; padding: var(--sp-2) 0; border-bottom: 1px solid var(--c-line-soft); font-family: var(--f-mono); font-size: var(--fs-00); }
.ui-field-row .k { color: var(--c-ink-faint); }
.ui-field-row .v { color: var(--c-ink); }
.ui-mock-buttons { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: var(--sp-4); }
.ui-btn-mini { font-family: var(--f-mono); font-size: var(--fs-000); border: 1px solid var(--c-line); border-radius: var(--radius-sm); padding: 7px 12px; color: var(--c-ink-dim); }
.ui-result { margin-top: var(--sp-4); padding: var(--sp-3); border: 1px dashed var(--c-blue-dim); border-radius: var(--radius-sm); background: rgba(61,139,253,0.06); }
.ui-result .k { font-family: var(--f-mono); font-size: var(--fs-000); color: var(--c-ink-faint); letter-spacing: 0.05em; }
.ui-result .v { font-family: var(--f-mono); font-size: var(--fs-2); color: var(--c-cyan); margin-top: 4px; }
.ui-mock-caption { text-align: center; font-family: var(--f-mono); font-size: var(--fs-000); color: var(--c-ink-faint); margin-top: var(--sp-3); }

/* -------------------------------------------------------------------------
   Forms
   ------------------------------------------------------------------------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--sp-4); }
.field label { font-size: var(--fs-00); font-weight: 600; color: var(--c-ink); }
.field .hint { font-size: var(--fs-000); color: var(--c-ink-faint); }
.field input, .field select, .field textarea {
  background: var(--c-bg-1); border: var(--border); border-radius: var(--radius-sm);
  color: var(--c-ink); font-family: var(--f-body); font-size: var(--fs-0); padding: 0.8em 0.9em;
  transition: border-color var(--dur-1) var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--c-blue); outline: none; }
.field textarea { resize: vertical; min-height: 110px; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: #E8543D; }
.field .error-msg { display: none; font-size: var(--fs-000); color: #E8543D; }
.field.has-error .error-msg { display: block; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.form-status { margin-top: var(--sp-4); padding: var(--sp-3); border-radius: var(--radius-sm); font-size: var(--fs-00); display: none; }
.form-status.is-success { display: block; background: rgba(70,225,200,0.08); border: 1px solid rgba(70,225,200,0.3); color: var(--c-cyan); }
.form-status.is-error { display: block; background: rgba(232,84,61,0.08); border: 1px solid rgba(232,84,61,0.3); color: #E8836F; }

/* -------------------------------------------------------------------------
   Automation finder
   ------------------------------------------------------------------------- */
.finder { background: var(--c-bg-1); border: var(--border); border-radius: var(--radius-lg); padding: var(--sp-6); }
.finder-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-4); }
@media (max-width: 720px) { .finder-grid { grid-template-columns: 1fr; } }
.finder-result { margin-top: var(--sp-6); padding-top: var(--sp-5); border-top: var(--border); display: none; }
.finder-result.is-visible { display: block; animation: fadeIn var(--dur-2) var(--ease); }
.finder-score { display: flex; align-items: center; gap: var(--sp-4); margin-bottom: var(--sp-3); }
.finder-score .dot { width: 12px; height: 12px; border-radius: 50%; flex: none; }
.finder-score.strong .dot { background: var(--c-cyan); }
.finder-score.partial .dot { background: var(--c-blue); }
.finder-score.assisted .dot { background: var(--c-violet); }
.finder-verdict { font-family: var(--f-display); font-size: var(--fs-3); font-weight: 700; }

/* -------------------------------------------------------------------------
   Footer
   ------------------------------------------------------------------------- */
.site-footer { border-top: var(--border); padding: var(--sp-7) 0 var(--sp-5); }
.footer-top { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: var(--sp-6); padding-bottom: var(--sp-6); }
@media (max-width: 860px) { .footer-top { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .footer-top { grid-template-columns: 1fr; } }
.footer-brand .nav-logo { margin-bottom: var(--sp-3); }
.footer-col h5 { font-family: var(--f-mono); font-size: var(--fs-000); letter-spacing: 0.06em; color: var(--c-ink-faint); margin-bottom: var(--sp-3); font-weight: 500; }
.footer-col ul { display: flex; flex-direction: column; gap: var(--sp-2); }
.footer-col a { font-size: var(--fs-00); color: var(--c-ink-dim); transition: color var(--dur-1) var(--ease); }
.footer-col a:hover { color: var(--c-blue); }
.footer-bottom { display: flex; justify-content: center; align-items: center; padding-top: var(--sp-5); border-top: 1px solid var(--c-line-soft); font-family: var(--f-mono); font-size: var(--fs-000); color: var(--c-ink-faint); flex-wrap: wrap; gap: var(--sp-2); text-align: center; }

/* -------------------------------------------------------------------------
   Misc utilities
   ------------------------------------------------------------------------- */
.eyebrow { font-family: var(--f-mono); font-size: var(--fs-000); color: var(--c-blue); letter-spacing: 0.06em; margin-bottom: var(--sp-3); display: block; }
.mt-2 { margin-top: var(--sp-2); } .mt-3 { margin-top: var(--sp-3); } .mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); } .mt-6 { margin-top: var(--sp-6); }
.mb-2 { margin-bottom: var(--sp-2); } .mb-3 { margin-bottom: var(--sp-3); } .mb-4 { margin-bottom: var(--sp-4); }
.mb-5 { margin-bottom: var(--sp-5); } .mb-6 { margin-bottom: var(--sp-6); }
.text-center { text-align: center; }
.divider { height: 1px; background: var(--c-line); border: none; margin: var(--sp-6) 0; }
.reveal { opacity: 0; transform: translateY(14px); transition: opacity var(--dur-3) var(--ease), transform var(--dur-3) var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--c-blue); color: var(--c-on-blue); padding: 10px 16px; z-index: 200; border-radius: 0 0 4px 0; }
.skip-link:focus { left: 0; }

.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--sp-5); margin-bottom: var(--sp-6); }
@media (max-width: 720px) { .section-head { flex-direction: column; align-items: flex-start; } }
.section-head .lede { margin-bottom: 0; }

.disclaimer { display: flex; gap: var(--sp-3); padding: var(--sp-4); border: 1px solid var(--c-line); border-left: 2px solid var(--c-amber); border-radius: var(--radius-sm); background: var(--c-bg-1); font-size: var(--fs-00); color: var(--c-ink-dim); }