/* styles.css — NVK × Hikvision LoRa Wireless FAS · command-center visual system */

/* ── Design tokens ─────────────────────────────────────────────── */
:root {
  /* surfaces — deep control-room navy/black */
  --bg:        #080B11;
  --bg-2:      #0C1018;
  --surface:   #121826;
  --surface-2: #18202F;
  --line:      #232C3D;
  --line-2:    #2E3A50;

  /* text */
  --ink:       #EAF0F8;
  --ink-2:     #A7B2C4;
  --ink-3:     #6B7689;

  /* brand / states */
  --red:       #ED1C24;  /* Hikvision red — fire / alarm */
  --red-2:     #FF4A52;
  --red-glow:  rgba(237, 28, 36, 0.55);
  --lora:      #18E0D0;  /* electric cyan — LoRa wireless signal */
  --lora-2:    #5BF2E6;
  --lora-glow: rgba(24, 224, 208, 0.5);
  --data:      #3B82F6;  /* ethernet / data */
  --ok:        #1FCB6B;  /* online / safe */
  --amber:     #FFB020;  /* battery / warning */

  --radius:    16px;
  --radius-sm: 10px;

  /* animation speed multiplier (driven by Tweak) — higher = slower */
  --spd: 1;

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

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* faint command-grid backdrop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(46,58,80,0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,58,80,0.16) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 0%, transparent 80%);
          mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 0%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

.wrap { position: relative; z-index: 1; max-width: 1280px; margin: 0 auto; padding: 0 28px; }

/* ── Typography helpers ────────────────────────────────────────── */
.mono { font-family: var(--font-mono); }
.kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lora-2);
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.kicker::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--lora);
  box-shadow: 0 0 8px var(--lora-glow);
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; margin: 0; line-height: 1.06; letter-spacing: -0.01em; }

.section { padding: 96px 0; position: relative; }
.section-head { max-width: 760px; margin-bottom: 44px; }
.section-head h2 { font-size: 40px; margin: 14px 0 14px; }
.section-head p { color: var(--ink-2); font-size: 17px; line-height: 1.6; margin: 0; }

/* utility chips */
.chip {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 11px;
  white-space: nowrap;
}

a { color: inherit; }