/* ============================================================
   CAAV Technology Consulting — design tokens
   Palette drawn from T568B wire-pair colors (orange/blue) and
   rack/patch-panel hardware, on a dark equipment-room base.
   ============================================================ */

:root{
  --bg:            #10151C;
  --bg-panel:      #171E27;
  --bg-panel-2:    #1D2530;
  --bg-raised:     #232C38;
  --border:        #2A3441;
  --border-bright: #3B4757;

  --text:          #EDF2F7;
  --text-muted:    #93A1B3;
  --text-dim:      #5C6B7D;

  --orange:        #FF6B35;
  --orange-dim:    #C24E24;
  --blue:          #4A9EFF;
  --green:         #3ECF6C;
  --amber:         #FFB238;

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;

  --radius: 8px;
  --radius-sm: 4px;

  --wrap: 1180px;
}

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

body{
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* subtle rack-panel texture on the page background */
body{
  background-image:
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0) 300px),
    repeating-linear-gradient(180deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 3px);
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

p{ margin: 0 0 1em; color: var(--text-muted); }
a{ color: inherit; }

img, svg{ max-width: 100%; display: block; }

.wrap{
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only{
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link{
  position: absolute; left: 12px; top: -60px;
  background: var(--orange); color: #10151C;
  padding: 10px 16px; border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: 13px; font-weight: 600;
  z-index: 200; transition: top 0.15s ease;
}
.skip-link:focus{ top: 12px; }

:focus-visible{
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 13px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn:active{ transform: translateY(1px); }

.btn-accent{
  background: var(--orange);
  color: #17110A;
}
.btn-accent:hover{ background: #FF7E4E; }

.btn-ghost{
  background: transparent;
  border-color: var(--border-bright);
  color: var(--text);
}
.btn-ghost:hover{ border-color: var(--blue); color: var(--blue); }

/* ============================================================
   Header / Nav
   ============================================================ */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(16,21,28,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.logo{
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
  color: var(--text);
  line-height: 1;
}
.logo-mark{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.logo-mark.small{ font-size: 18px; }
.logo-mark .led{
  width: 7px; height: 7px;
  border-radius: 1px;
  background: var(--green);
  box-shadow: 0 0 6px 1px rgba(62,207,108,0.7);
  animation: blink 2.6s ease-in-out infinite;
}
.logo-sub{
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.main-nav ul{
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0; padding: 0;
}
.main-nav a{
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14.5px;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color 0.15s ease;
}
.main-nav a:hover{ color: var(--text); }
.main-nav a::after{
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1.5px;
  background: var(--orange);
  transition: right 0.2s ease;
}
.main-nav a:hover::after{ right: 0; }

.nav-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav-toggle span{
  display: block;
  height: 1.5px;
  margin: 0 9px;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-6.5px) rotate(-45deg); }

.nav-cta{ white-space: nowrap; }

/* ============================================================
   Hero
   ============================================================ */
.hero{ padding-top: 72px; overflow: hidden; }

.hero-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 56px;
}

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--blue);
  margin-bottom: 22px;
}
.eyebrow-dot{
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 8px 1px rgba(74,158,255,0.75);
}

.hero-copy h1{
  font-size: clamp(2.4rem, 4.4vw, 3.6rem);
  color: var(--text);
}

.hero-sub{
  font-size: 17px;
  max-width: 46ch;
  margin-top: 20px;
  margin-bottom: 32px;
}

.hero-actions{
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.credential-badge{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding: 10px 16px;
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  background: rgba(74,158,255,0.06);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  max-width: fit-content;
}
.credential-icon{
  width: 16px;
  height: 16px;
  color: var(--blue);
  flex-shrink: 0;
}

.platform-list{
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 10px;
}
.platform-label{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.platform-tags{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 0;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}
.platform-tags li{
  display: inline-flex;
  align-items: center;
}
.platform-tags li:not(:last-child)::after{
  content: '/';
  margin: 0 10px;
  color: var(--border-bright);
}

.hero-diagram{ position: relative; }
.rack-svg{ width: 100%; height: auto; }

/* --- SVG hero diagram styling --- */
.jack-plate{ fill: var(--bg-panel-2); stroke: var(--border-bright); stroke-width: 1.5; }
.jack-port{ fill: #0B0F14; stroke: var(--border-bright); stroke-width: 1; }
.jack-led{ fill: var(--green); filter: drop-shadow(0 0 3px rgba(62,207,108,0.9)); animation: blink 2.6s ease-in-out infinite; }

.cable-path{ fill: none; stroke: var(--orange-dim); stroke-width: 2.5; stroke-linecap: round; opacity: 0.55; }
.signal-pulse{ fill: var(--orange); filter: drop-shadow(0 0 5px rgba(255,107,53,0.9)); }

.rack-frame{ fill: var(--bg-panel); stroke: var(--border-bright); stroke-width: 1.5; }
.rack-frame-inner{ fill: none; stroke: var(--border); stroke-width: 1; }
.rail-ticks line{ stroke: var(--border-bright); stroke-width: 1; }

.rack-unit{ stroke: var(--border-bright); stroke-width: 1; }
.unit-patch{ fill: var(--bg-raised); }
.unit-switch{ fill: #1A2129; }
.unit-server{ fill: var(--bg-raised); }
.unit-blank{ fill: #171D25; stroke-dasharray: 3 3; }

.patch-ports rect{ fill: #0B0F14; stroke: var(--border-bright); stroke-width: 0.75; }
.patch-ports .port-active{ fill: rgba(62,207,108,0.35); stroke: var(--green); }

.switch-led{ fill: var(--text-dim); }
.switch-led.led-b{ fill: var(--green); animation: blink 1.8s ease-in-out infinite 0.3s; }
.switch-led.led-a{ fill: var(--amber); animation: blink 3.2s ease-in-out infinite; }

.server-bay{ fill: none; stroke: var(--border-bright); stroke-width: 1; }

.rack-label{ font-family: var(--font-mono); font-size: 11px; fill: var(--text-dim); letter-spacing: 0.05em; }
.rack-label-inline{ font-family: var(--font-mono); font-size: 8.5px; fill: var(--text-dim); letter-spacing: 0.04em; }

.readout-box{ fill: var(--bg-panel); stroke: var(--border-bright); stroke-width: 1.25; }
.readout-title{ font-family: var(--font-mono); font-size: 11px; font-weight: 600; fill: var(--text); letter-spacing: 0.08em; }
.readout-led{ fill: var(--green); animation: blink 2.4s ease-in-out infinite; }
.readout-row{ font-family: var(--font-mono); font-size: 11px; fill: var(--text-muted); }
.readout-pass{ fill: var(--green); font-weight: 600; }

@keyframes blink{
  0%, 100%{ opacity: 1; }
  50%{ opacity: 0.35; }
}

/* --- Marquee --- */
.marquee{
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  overflow: hidden;
  padding: 16px 0;
}
.marquee-track{
  display: flex;
  gap: 40px;
  white-space: nowrap;
  width: max-content;
  animation: scroll-left 32s linear infinite;
}
.marquee-track span{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  gap: 40px;
}
.marquee-track span::after{
  content: '/';
  color: var(--orange-dim);
}
@keyframes scroll-left{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce){
  .marquee-track{ animation: none; }
}

/* ============================================================
   Section shared styles
   ============================================================ */
section{ padding: 100px 0; }

.section-eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 14px;
}
.section-title{
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  color: var(--text);
  max-width: 20ch;
}
.section-lead{
  font-size: 16.5px;
  max-width: 52ch;
}

/* ============================================================
   Services — patch panel
   ============================================================ */
.services{ background: var(--bg-panel); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.panel-block{
  margin-top: 48px;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  background: var(--bg);
  overflow: hidden;
}

.port-row{
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  padding: 36px 32px;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s ease;
}
.port-row:last-child{ border-bottom: none; }
.port-row:hover, .port-row:focus-visible{ background: var(--bg-panel-2); }

.port-num{
  display: flex;
  align-items: center;
  gap: 10px;
  height: fit-content;
}
.port-led{
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px 1px rgba(62,207,108,0.7);
  flex-shrink: 0;
}
.port-code{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.port-body h3{
  font-size: 22px;
  color: var(--text);
  margin-bottom: 10px;
}
.port-body p{ max-width: 62ch; }

.port-tags{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 0;
  margin: 16px 0 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--blue);
}
.port-tags li{
  display: inline-flex;
  align-items: center;
}
.port-tags li:not(:last-child)::after{
  content: '/';
  margin: 0 10px;
  color: var(--border-bright);
}

/* ============================================================
   Process
   ============================================================ */
.process-list{
  list-style: none;
  margin: 48px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.process-step{
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--border);
  align-items: start;
}
.process-step:last-child{ border-bottom: 1px solid var(--border); }

.step-index{
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--orange);
  font-weight: 600;
  letter-spacing: 0.04em;
  padding-top: 2px;
}
.process-step h3{ font-size: 19px; color: var(--text); margin-bottom: 6px; }
.process-step p{ max-width: 60ch; margin-bottom: 0; }

/* ============================================================
   Certification
   ============================================================ */
.certification{ background: var(--bg-panel); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.cert-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.cert-copy #runTestBtn{ margin-top: 12px; }

.cert-panel{
  background: var(--bg);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  overflow: hidden;
}
.cert-panel-head{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.cert-status{
  color: var(--green);
  font-weight: 600;
  transition: color 0.2s ease;
}
.cert-status.testing{ color: var(--amber); }

.cert-rows{ padding: 10px 22px; }
.cert-row{
  display: flex;
  justify-content: space-between;
  padding: 11px 0;
  border-bottom: 1px dashed var(--border);
  font-family: var(--font-mono);
  font-size: 13.5px;
}
.cert-row:last-child{ border-bottom: none; }
.cert-row span:first-child{ color: var(--text-dim); }
.cert-row span:last-child{ color: var(--text); }
.cert-row .ok{ color: var(--green); font-weight: 600; }
.cert-row-final{ padding-top: 14px; }
.cert-row-final span{ font-size: 15px; }

.cert-note{
  font-size: 11.5px;
  color: var(--text-dim);
  padding: 4px 22px 18px;
  margin: 0;
}

.cert-panel.is-testing .cert-row span:last-child{ opacity: 0.25; filter: blur(1.5px); transition: opacity 0.2s ease, filter 0.2s ease; }

/* ============================================================
   Contact
   ============================================================ */
.contact-grid{
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
}

.quote-form{
  background: var(--bg-panel);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  padding: 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-row{ display: flex; flex-direction: column; gap: 8px; }
.form-row-full{ grid-column: 1 / -1; }

.form-row label{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.form-row .optional{ text-transform: none; color: var(--text-dim); letter-spacing: 0; }

.form-row input,
.form-row select,
.form-row textarea{
  background: var(--bg);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14.5px;
  padding: 11px 13px;
  resize: vertical;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255,107,53,0.15);
}

.form-submit{ grid-column: 1 / -1; justify-self: start; margin-top: 4px; }

.form-status{
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--green);
  margin: 0;
  min-height: 1em;
}
.form-status.error{ color: var(--orange); }

.hp-field{ display: none; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer{
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-inner{
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-inner p{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-dim);
  margin: 0;
}

/* ============================================================
   Scroll reveal
   ============================================================ */
.reveal{ opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible{ opacity: 1; transform: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-diagram{ order: -1; max-width: 480px; margin: 0 auto; }
  .cert-grid{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 760px){
  .main-nav ul{
    position: absolute;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 24px 16px;
    display: none;
  }
  .main-nav ul.is-open{ display: flex; }
  .main-nav a{ display: block; padding: 12px 0; }
  .nav-toggle{ display: flex; }
  .nav-cta{ display: none; }

  .port-row{ grid-template-columns: 1fr; gap: 14px; }
  .process-step{ grid-template-columns: 50px 1fr; }
  .quote-form{ grid-template-columns: 1fr; padding: 24px; }
  section{ padding: 64px 0; }
  .header-inner{ height: 68px; }
  .hero{ padding-top: 0; }
}

@media (max-width: 480px){
  .hero-actions{ flex-direction: column; align-items: stretch; }
  .footer-inner{ flex-direction: column; align-items: flex-start; gap: 6px; }
}