/* ── Custom Properties ────────────────────────────────── */
:root {
  --color-bg-deep:      #080f1a;
  --color-bg-surface:   #0d1b2a;
  --color-bg-elevated:  #1b2a3b;
  --color-cyan-bright:  #00b4d8;
  --color-cyan-dim:     #0077b6;
  --color-gold:         #d4a017;
  --color-gold-light:   #f0c850;
  --color-text-primary: #e8edf2;
  --color-text-secondary: #8a9bb0;
  --font-display: 'Barlow Condensed', system-ui, -apple-system, sans-serif;
  --font-body:    'Barlow', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --transition-base: 0.3s ease;
}

/* ── Reset ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg-deep);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--color-cyan-bright); text-decoration: none; transition: color var(--transition-base); }
a:hover { color: var(--color-gold-light); }

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

/* ── Hero ────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  position: relative;
  background:
    radial-gradient(ellipse 60% 50% at 50% 45%, rgba(0, 180, 216, 0.08) 0%, transparent 70%),
    var(--color-bg-deep);
}

.hero__logo-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  margin-bottom: 2rem;
  animation: hero-fade-in 1s ease both;
}

.hero__logo-wrap::before {
  content: '';
  position: absolute;
  inset: -30%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.25) 0%, transparent 70%);
  filter: blur(20px);
  z-index: 0;
  animation: glow-pulse 4s ease-in-out infinite alternate;
}

.hero__logo {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: contain;
  z-index: 1;
  filter: drop-shadow(0 0 20px rgba(0, 180, 216, 0.3));
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  animation: hero-fade-in 1s 0.2s ease both;
}

.hero__tagline {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-text-secondary);
  margin-top: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  animation: hero-fade-in 1s 0.4s ease both;
}

.hero__scroll-cue {
  position: absolute;
  bottom: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  animation: hero-fade-in 1s 0.8s ease both;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero__scroll-cue svg {
  animation: bounce 2s ease-in-out infinite;
}

/* ── Section shared ──────────────────────────────────── */
.section {
  padding: 5rem 1.5rem;
  max-width: 1120px;
  margin: 0 auto;
}

.section__heading {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 3rem;
  text-align: center;
  position: relative;
  display: inline-block;
  width: 100%;
}

.section__heading::after {
  content: '';
  display: block;
  width: 3rem;
  height: 3px;
  background: var(--color-gold);
  margin: 0.75rem auto 0;
  border-radius: 2px;
}

/* ── Services Grid ───────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 960px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ── Card ────────────────────────────────────────────── */
.card {
  background: var(--color-bg-surface);
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  /* scroll-reveal initial state */
  opacity: 0;
  transform: translateY(24px);
}

.card.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease,
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.card:hover {
  border-color: var(--color-cyan-bright);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 180, 216, 0.1);
}

.card.is-visible:hover {
  transform: translateY(-4px);
}

.card__icon {
  width: 48px;
  height: 48px;
  color: var(--color-cyan-bright);
  flex-shrink: 0;
}

.card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.card__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.card__link {
  margin-top: auto;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gold);
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-base);
}

.card__link:hover {
  color: var(--color-gold-light);
}

/* ── Contact ─────────────────────────────────────────── */
.contact {
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-bg-elevated);
}

.contact__inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact__text {
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.contact__email {
  display: inline-block;
  font-size: 1.15rem;
  font-weight: 500;
  padding: 0.65rem 2rem;
  border: 1px solid var(--color-gold);
  border-radius: 6px;
  color: var(--color-gold);
  transition:
    background var(--transition-base),
    color var(--transition-base);
}

.contact__email:hover {
  background: var(--color-gold);
  color: var(--color-bg-deep);
}

/* ── Footer ──────────────────────────────────────────── */
.footer {
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.03em;
}

/* ── Keyframes ───────────────────────────────────────── */
@keyframes hero-fade-in {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes glow-pulse {
  from { opacity: 0.6; }
  to   { opacity: 1; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(6px); }
}

/* ── Reduced Motion ──────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .card { opacity: 1; transform: none; }
}