/* ============================================================
   NodeSupply — datasheet aesthetic
   Palette:
     paper   #F5F7F9   cool light gray (datasheet stock)
     ink     #16212B   near-black blue
     cable   #1E5FD0   Cat6 patch-cable blue (primary)
     port    #F2731D   10G port orange (accent — used sparingly)
     led     #2FBF71   link-light green (status only)
     line    #D4DCE3   hairline gray
   Type:
     display Chakra Petch · body IBM Plex Sans · utility IBM Plex Mono
   ============================================================ */

:root {
  --paper: #F5F7F9;
  --panel: #FFFFFF;
  --ink: #16212B;
  --ink-soft: #4A5A6A;
  --cable: #1E5FD0;
  --cable-dark: #16489E;
  --port: #F2731D;
  --led: #2FBF71;
  --led-amber: #F2B01D;
  --line: #D4DCE3;
  --chassis: #1B2733;

  --font-display: "Chakra Petch", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --radius: 10px;
  --wrap: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
}

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

h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; }

a { color: var(--cable); }

:focus-visible {
  outline: 3px solid var(--cable);
  outline-offset: 2px;
  border-radius: 4px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo em { font-style: normal; color: var(--cable); }

.logo-mark {
  display: inline-flex;
  gap: 3px;
  padding: 5px 6px;
  background: var(--chassis);
  border-radius: 6px;
}
.logo-mark .port {
  width: 7px; height: 9px;
  background: #3A4A5A;
  border-radius: 1.5px;
}
.logo-mark .port.on { background: var(--led); }

.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
}
.site-nav a:hover { color: var(--ink); }

.nav-cta {
  color: #fff !important;
  background: var(--cable);
  padding: 8px 16px;
  border-radius: 8px;
}
.nav-cta:hover { background: var(--cable-dark); }

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

.hero { padding: 88px 0 72px; border-bottom: 1px solid var(--line); }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--port);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  margin-bottom: 20px;
}

.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 46ch;
  margin-bottom: 32px;
}

.mono-chip {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--chassis);
  color: var(--led);
  padding: 2px 8px;
  border-radius: 5px;
  white-space: nowrap;
}

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

.btn {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding: 12px 24px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background 0.15s ease, transform 0.1s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--cable); color: #fff; }
.btn-primary:hover { background: var(--cable-dark); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover { border-color: var(--ink-soft); }

/* ---------- signature: switch front panel ---------- */

.panel {
  background: var(--chassis);
  border-radius: var(--radius);
  padding: 22px 24px 18px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.06) inset,
    0 24px 48px -24px rgba(22, 33, 43, 0.5);
}

.panel-label {
  color: #7E93A8;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  margin-bottom: 16px;
}

.panel-ports {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.jack {
  aspect-ratio: 1 / 0.85;
  background: #0D141B;
  border: 1.5px solid #2C3B4A;
  border-radius: 4px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 4px 5px;
}
.jack.sfp { border-color: var(--cable); }

.led {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #2C3B4A;
}
.led-green { background: var(--led); animation: blink 2.4s infinite; }
.led-amber { background: var(--led-amber); animation: blink 1.7s infinite; }
.led-blue  { background: #4D8DF7; animation: blink 2.1s infinite; }
.led.d1 { animation-delay: 0.35s; }
.led.d2 { animation-delay: 0.8s; }
.led.d3 { animation-delay: 1.25s; }

@keyframes blink {
  0%, 78%, 100% { opacity: 1; }
  82%, 90% { opacity: 0.25; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .led-green, .led-amber, .led-blue { animation: none; }
  .btn { transition: none; }
}

.panel-caption {
  color: #7E93A8;
  font-size: 0.78rem;
  line-height: 1.5;
}

/* ---------- sections ---------- */

.section { padding: 72px 0; }
.section-alt { background: var(--panel); border-block: 1px solid var(--line); }

.section-head { max-width: 56ch; margin-bottom: 40px; }
.section-head h2 { font-size: 2rem; margin-bottom: 10px; }
.section-head p { color: var(--ink-soft); }

/* ---------- bundle cards (spec-sheet style) ---------- */

.bundle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.loading-note { color: var(--ink-soft); font-size: 0.9rem; }

.bundle-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.bundle-card:hover {
  border-color: var(--cable);
  box-shadow: 0 12px 32px -20px rgba(30, 95, 208, 0.45);
}

.card-top {
  padding: 20px 22px 16px;
  border-bottom: 1px dashed var(--line);
}

.card-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 12px;
}
.status-led {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--led-amber);
}

.bundle-card h3 { font-size: 1.35rem; margin-bottom: 4px; }
.card-tagline { color: var(--ink-soft); font-size: 0.95rem; }

.card-spec {
  padding: 10px 22px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cable);
  background: color-mix(in srgb, var(--cable) 6%, transparent);
  border-bottom: 1px dashed var(--line);
}

.card-includes {
  list-style: none;
  padding: 16px 22px;
  flex: 1;
}
.card-includes li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  font-size: 0.93rem;
  color: var(--ink-soft);
}
.card-includes li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 9px; height: 6px;
  border-radius: 1.5px;
  background: var(--cable);
}

.card-best {
  padding: 0 22px 16px;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.card-best strong { color: var(--ink); font-weight: 600; }

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 60%, var(--panel));
}

.price { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; }
.compare-at {
  font-size: 0.85rem;
  color: var(--ink-soft);
  text-decoration: line-through;
  margin-left: 8px;
  font-weight: 400;
}

.card-cta {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--port);
  background: none;
  border: 1.5px solid var(--port);
  padding: 8px 14px;
  border-radius: 7px;
  cursor: pointer;
}
.card-cta:hover { background: color-mix(in srgb, var(--port) 10%, transparent); }

/* ---------- steps ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--port);
  border: 1px solid color-mix(in srgb, var(--port) 40%, transparent);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.step h3 { font-size: 1.15rem; margin-bottom: 8px; }
.step p { color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- subscribe / terminal ---------- */

.subscribe-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.subscribe-copy h2 { font-size: 2rem; margin-bottom: 10px; }
.subscribe-copy p { color: var(--ink-soft); }

.terminal {
  background: var(--chassis);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 48px -28px rgba(22, 33, 43, 0.55);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  background: #12202D;
  border-bottom: 1px solid #2C3B4A;
}
.terminal-bar .dot { width: 10px; height: 10px; border-radius: 50%; background: #3A4A5A; }
.terminal-title { color: #7E93A8; font-size: 0.75rem; margin-left: 8px; }

.terminal-body { padding: 20px; }

.prompt-line {
  display: block;
  color: #A8BACB;
  font-size: 0.9rem;
  margin-bottom: 10px;
}
.prompt { color: var(--led); margin-right: 6px; }

.prompt-row { display: flex; gap: 10px; }

#email-input {
  flex: 1;
  background: #0D141B;
  border: 1.5px solid #2C3B4A;
  border-radius: 7px;
  color: #E8EEF4;
  font-size: 0.95rem;
  padding: 11px 14px;
}
#email-input::placeholder { color: #5A6E82; }
#email-input:focus-visible { outline-color: var(--led); }

.status-line { min-height: 1.4em; margin-top: 12px; font-size: 0.85rem; color: var(--led); }
.status-line.error { color: #F27B6C; }

/* ---------- footer ---------- */

.site-footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.footer-dim { color: color-mix(in srgb, var(--ink-soft) 70%, transparent); }

/* ---------- legal + admin pages ---------- */

.legal { padding: 56px 24px 80px; max-width: 720px; }
.legal h1 { font-size: 2.2rem; margin-bottom: 8px; }
.legal h2 { font-size: 1.2rem; margin: 32px 0 8px; }
.legal p { color: var(--ink-soft); margin-bottom: 12px; }
.legal p strong { color: var(--ink); }
.legal-updated { font-size: 0.8rem; color: var(--port); margin-bottom: 24px; }

.footer-links a { color: var(--ink-soft); text-decoration: none; }
.footer-links a:hover { color: var(--cable); text-decoration: underline; }

.admin-badge {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--port);
  border: 1px solid color-mix(in srgb, var(--port) 40%, transparent);
  padding: 3px 10px;
  border-radius: 999px;
}
.admin-hint { font-size: 0.95rem; }
.admin-row { margin-top: 20px; flex-wrap: wrap; }
.admin-key {
  flex: 1;
  min-width: 220px;
  background: var(--panel);
  border: 1.5px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  font-size: 0.95rem;
  padding: 11px 14px;
}
.admin-status { color: var(--led); }
.admin-status.error { color: #C4442E; }

.admin-table {
  width: 100%;
  margin-top: 24px;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 0.88rem;
}
.admin-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 60%, var(--panel));
}
.admin-table td { padding: 9px 14px; border-bottom: 1px solid var(--line); color: var(--ink-soft); }
.admin-table tr:last-child td { border-bottom: none; }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .hero-grid, .subscribe-inner { grid-template-columns: 1fr; gap: 40px; }
  .bundle-grid, .steps { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 48px; }
  .site-nav a:not(.nav-cta) { display: none; }
}