/* ========================================================================
   Whubb — Coming Soon
   Dark infrastructure / safety-tech aesthetic
   Cyan + amber accents, derived from logo
   ======================================================================== */

:root {
  /* Palette */
  --bg-0: #05080d;            /* deep base */
  --bg-1: #0a0f17;            /* surface */
  --bg-2: #111824;            /* elevated */
  --line: rgba(148, 163, 184, 0.10);
  --line-strong: rgba(148, 163, 184, 0.18);

  --text-0: #f1f5f9;          /* primary */
  --text-1: #cbd5e1;          /* secondary */
  --text-2: #94a3b8;          /* tertiary */
  --text-3: #64748b;          /* muted */

  --cyan: #22d3ee;            /* electric cyan */
  --cyan-glow: rgba(34, 211, 238, 0.45);
  --amber: #f59e0b;           /* warning amber */
  --amber-glow: rgba(245, 158, 11, 0.40);

  /* Typography */
  --font-display: 'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
  --font-body: 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: clamp(1.375rem, 1.1rem + 1.2vw, 1.875rem);
  --text-2xl: clamp(1.875rem, 1.4rem + 2.4vw, 2.75rem);
  --text-hero: clamp(2.25rem, 1.5rem + 4.5vw, 4.5rem);

  /* Spacing */
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max: 1180px;
  --pad-x: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 14px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-0);
  color: var(--text-0);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  position: relative;
}

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

a { color: inherit; text-decoration: none; }

::selection {
  background: var(--cyan);
  color: var(--bg-0);
}

/* ---------- Backdrop ---------- */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.grid-layer {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 40%, transparent 100%);
}

.glow {
  position: absolute;
  width: 60vw;
  height: 60vw;
  max-width: 900px;
  max-height: 900px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
}

.glow--cyan {
  background: var(--cyan);
  top: -20%;
  left: -10%;
}

.glow--amber {
  background: var(--amber);
  bottom: -25%;
  right: -15%;
  opacity: 0.18;
}

.scanline {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-glow), transparent);
  filter: blur(0.5px);
  animation: scan 9s linear infinite;
  opacity: 0.5;
}

@keyframes scan {
  0%   { transform: translateY(0); opacity: 0; }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.6; }
  100% { transform: translateY(100vh); opacity: 0; }
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  letter-spacing: -0.01em;
}

.brand__mark {
  height: 28px;
  width: auto;
  filter: drop-shadow(0 0 18px rgba(34, 211, 238, 0.35));
}

.brand__word {
  background: linear-gradient(90deg, var(--text-0) 0%, var(--text-1) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-2);
}

.nav a { transition: color 180ms ease; }
.nav a:hover { color: var(--text-0); }

.nav__cta {
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--text-0) !important;
  background: rgba(34, 211, 238, 0.05);
  transition: all 200ms ease;
}
.nav__cta:hover {
  border-color: var(--cyan);
  background: rgba(34, 211, 238, 0.10);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.06);
}

@media (max-width: 640px) {
  .nav { gap: var(--space-3); }
  .nav a:not(.nav__cta) { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--pad-x) var(--space-24);
  overflow: hidden;
}

.hero__inner {
  max-width: 880px;
  position: relative;
  z-index: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.04);
  color: var(--text-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan-glow), 0 0 20px var(--cyan-glow);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(0.85); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 600;
  margin: var(--space-6) 0 var(--space-6);
  color: var(--text-0);
}

.grad {
  background: linear-gradient(95deg, var(--cyan) 0%, #67e8f9 45%, var(--amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  max-width: 640px;
  font-size: var(--text-lg);
  color: var(--text-1);
  line-height: 1.6;
  margin: 0 0 var(--space-8);
}

.hero__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.005em;
  transition: all 220ms cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
  cursor: pointer;
}

.btn--primary {
  background: var(--cyan);
  color: var(--bg-0);
  box-shadow:
    0 0 0 0 rgba(34, 211, 238, 0.4),
    0 8px 30px -10px rgba(34, 211, 238, 0.45);
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow:
    0 0 0 4px rgba(34, 211, 238, 0.15),
    0 12px 40px -10px rgba(34, 211, 238, 0.6);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-0);
  border-color: var(--line-strong);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(148, 163, 184, 0.30);
}

/* Telemetry strip */
.telemetry {
  list-style: none;
  margin: 0;
  padding: var(--space-6) 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  border-top: 1px solid var(--line);
  max-width: 720px;
}

.telemetry li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.telemetry__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.telemetry__value {
  font-family: var(--font-display);
  font-size: var(--text-base);
  color: var(--text-0);
  font-weight: 500;
}

@media (max-width: 600px) {
  .telemetry { grid-template-columns: 1fr; }
}

/* Hero signal SVG */
.hero__signal {
  position: absolute;
  right: -10%;
  bottom: -8%;
  width: 70%;
  max-width: 720px;
  height: auto;
  opacity: 0.7;
  pointer-events: none;
  filter: drop-shadow(0 0 20px rgba(34, 211, 238, 0.15));
}

.hero__wave {
  stroke-dasharray: 2200;
  stroke-dashoffset: 2200;
  animation: trace 4.5s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards;
}

@keyframes trace {
  to { stroke-dashoffset: 0; }
}

@media (max-width: 900px) {
  .hero__signal { display: none; }
}

/* ---------- Sections ---------- */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--space-24) var(--pad-x);
  position: relative;
}

.section--alt {
  border-top: 1px solid var(--line);
}

.section__head {
  max-width: 720px;
  margin: 0 0 var(--space-12);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  display: inline-block;
  margin-bottom: var(--space-4);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin: 0 0 var(--space-4);
  color: var(--text-0);
}

.section__lede {
  font-size: var(--text-base);
  color: var(--text-1);
  line-height: 1.65;
  margin: 0;
  max-width: 640px;
}

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

@media (max-width: 880px) {
  .cards { grid-template-columns: 1fr; }
}

.card {
  position: relative;
  padding: var(--space-6);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
  transition: border-color 240ms ease, transform 240ms ease, background 240ms ease;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 60% at 50% 0%, rgba(34, 211, 238, 0.12), transparent 70%);
  opacity: 0;
  transition: opacity 320ms ease;
  pointer-events: none;
}

.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}
.card:hover::before { opacity: 1; }

.card__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 211, 238, 0.08);
  color: var(--cyan);
  margin-bottom: var(--space-4);
  border: 1px solid rgba(34, 211, 238, 0.18);
}

.card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.01em;
  color: var(--text-0);
}

.card p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--text-1);
  line-height: 1.6;
}

/* ---------- Audience ---------- */
.audience {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.audience li {
  position: relative;
  padding: var(--space-8);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0));
  transition: background 220ms ease;
}
.audience li:hover {
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.04), rgba(255,255,255,0));
}

.audience__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--amber);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: var(--space-3);
}

.audience h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 0 0 var(--space-2);
  color: var(--text-0);
  letter-spacing: -0.01em;
}

.audience p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--text-2);
  line-height: 1.55;
}

@media (max-width: 720px) {
  .audience { grid-template-columns: 1fr; }
}

/* ---------- Contact ---------- */
.section--contact { padding-top: var(--space-16); padding-bottom: var(--space-24); }

.contact {
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  padding: clamp(var(--space-8), 5vw, var(--space-16));
  background:
    radial-gradient(80% 100% at 0% 0%, rgba(34, 211, 238, 0.08), transparent 60%),
    radial-gradient(80% 100% at 100% 100%, rgba(245, 158, 11, 0.05), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-12);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.contact::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--amber), transparent);
  opacity: 0.6;
}

.contact__copy .eyebrow { color: var(--amber); }

.contact__cta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-6);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: rgba(5, 8, 13, 0.6);
  position: relative;
  transition: all 240ms cubic-bezier(0.16, 1, 0.3, 1);
}

.contact__cta:hover {
  border-color: var(--cyan);
  background: rgba(34, 211, 238, 0.06);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px -10px rgba(34, 211, 238, 0.4);
}

.contact__cta svg {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  color: var(--text-2);
  transition: color 200ms ease, transform 200ms ease;
}
.contact__cta:hover svg {
  color: var(--cyan);
  transform: translate(3px, -3px);
}

.contact__cta-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
}

.contact__cta-addr {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--text-0);
  word-break: break-all;
  letter-spacing: -0.01em;
  font-weight: 500;
}

@media (max-width: 880px) {
  .contact { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  margin-top: var(--space-12);
}

.footer__row {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--space-8) var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-1);
  font-size: var(--text-sm);
}

.footer__meta {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--text-3);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}