/* ═══════════════════════════════════════════════════════
   THE MIND HIVE — Dark Neural Network Aesthetic
   ═══════════════════════════════════════════════════════ */

:root {
  /* Deep space blues */
  --bg-primary: #06080f;
  --bg-secondary: #0b1022;
  --bg-card: #0f1631;
  --bg-card-hover: #141d3e;

  /* Neural accent palette */
  --accent: #3b82f6;
  --accent-bright: #60a5fa;
  --accent-glow: rgba(59, 130, 246, 0.25);
  --accent-subtle: rgba(59, 130, 246, 0.08);
  --accent-cyan: #22d3ee;
  --accent-violet: #8b5cf6;

  /* Text */
  --text-primary: #e8ecf4;
  --text-secondary: #8892a8;
  --text-muted: #4e5a73;

  /* Borders */
  --border: rgba(136, 146, 168, 0.12);
  --border-hover: rgba(59, 130, 246, 0.3);

  /* Typography */
  --font-body: 'Outfit', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout */
  --container: 1200px;
  --gap: 2rem;
}

/* ═══════════ RESET & BASE ═══════════ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gap);
}

/* ═══════════ NEURAL NETWORK CANVAS ═══════════ */

#neural-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
}

/* ═══════════ NAVIGATION ═══════════ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 0;
  transition: background 0.4s, backdrop-filter 0.4s, padding 0.4s;
}

.nav--scrolled {
  background: rgba(6, 8, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gap);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav__logo-icon {
  font-size: 1.5rem;
  color: var(--accent);
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.nav__logo-img {
  height: 32px;
  width: auto;
  filter: drop-shadow(0 0 6px var(--accent-glow));
  transition: filter 0.3s;
}

.nav__logo:hover .nav__logo-img {
  filter: drop-shadow(0 0 12px var(--accent-glow));
}

.nav__logo-text {
  background: linear-gradient(135deg, var(--text-primary), var(--accent-bright));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav__links a {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.3s;
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s;
}

.nav__links a:hover {
  color: var(--text-primary);
}

.nav__links a:hover::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform 0.3s, opacity 0.3s;
}

/* ═══════════ HERO ═══════════ */

.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 6rem var(--gap) 4rem;
}

.hero__content {
  max-width: 800px;
}

.hero__logo {
  width: 120px;
  height: auto;
  margin: 0 auto 2rem;
  filter: drop-shadow(0 0 20px var(--accent-glow)) drop-shadow(0 0 40px rgba(59, 130, 246, 0.15));
  animation: logoFloat 4s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.hero__pre {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero__title {
  font-size: clamp(3.2rem, 10vw, 7rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}

.hero__title-line {
  display: block;
}

.hero__title-line--accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan), var(--accent-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 40px var(--accent-glow));
}

.hero__tagline {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.3; transform: scaleY(0.6); }
}

/* ═══════════ BUTTONS ═══════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 0.02em;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn--primary:hover {
  background: var(--accent-bright);
  border-color: var(--accent-bright);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.btn--outline:hover {
  background: var(--accent-subtle);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.btn--large {
  padding: 1.1rem 2.5rem;
  font-size: 1rem;
}

/* ═══════════ SECTION HEADERS ═══════════ */

.section-header {
  margin-bottom: 3.5rem;
}

.section-header__label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--accent-glow);
  border-radius: 4px;
  background: var(--accent-subtle);
}

.section-header__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.section-header__sub {
  color: var(--text-secondary);
  max-width: 560px;
  font-size: 1.05rem;
}

/* ═══════════ SERVICES ═══════════ */

.services {
  position: relative;
  z-index: 1;
  padding: 8rem 0;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), 0 0 40px var(--accent-glow);
}

.service-card:hover::before {
  opacity: 1;
}

.service-card__icon {
  width: 48px;
  height: 48px;
  color: var(--accent);
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.service-card__text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ═══════════ ABOUT ═══════════ */

.about {
  position: relative;
  z-index: 1;
  padding: 8rem 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about__title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 1rem 0 1.5rem;
}

.about__content p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.about__content strong {
  color: var(--accent-bright);
}

.about__content .btn {
  margin-top: 1rem;
}

/* Hex grid visual */
.about__visual {
  display: flex;
  justify-content: center;
}

.about__hex-grid {
  display: grid;
  grid-template-columns: repeat(3, 80px);
  gap: 12px;
  transform: rotate(-5deg);
}

.hex {
  width: 80px;
  height: 92px;
  background: linear-gradient(135deg, var(--accent-subtle), var(--bg-card));
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  border: 1px solid var(--border-hover);
  animation: hexPulse 3s ease-in-out infinite;
  animation-delay: var(--delay);
}

@keyframes hexPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

/* ═══════════ BLOG ═══════════ */

.blog {
  position: relative;
  z-index: 1;
  padding: 8rem 0;
}

.blog__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  transition: all 0.4s;
}

.blog-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.blog-card__date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.blog-card__title {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0.75rem 0;
  letter-spacing: -0.02em;
}

.blog-card__excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.blog-card__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  transition: color 0.3s;
}

.blog-card:hover .blog-card__link {
  color: var(--accent-bright);
}

/* ═══════════ CONTACT ═══════════ */

.contact {
  position: relative;
  z-index: 1;
  padding: 8rem 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.contact__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.contact__title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 1rem 0 1rem;
}

.contact__text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact__item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: color 0.3s;
}

.contact__item:hover {
  color: var(--accent-bright);
}

.contact__item svg {
  color: var(--accent);
  flex-shrink: 0;
}

.contact__cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 3rem;
  text-align: center;
}

.contact__cta-box h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.contact__cta-box p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* ═══════════ FOOTER ═══════════ */

.footer {
  position: relative;
  z-index: 1;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.footer__logo-img {
  height: 22px;
  width: auto;
  opacity: 0.6;
}

.footer__copy {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ═══════════ ANIMATIONS ═══════════ */

.animate-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════ RESPONSIVE ═══════════ */

@media (max-width: 900px) {
  .services__grid {
    grid-template-columns: 1fr;
  }

  .about__layout,
  .contact__layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about__visual {
    order: -1;
  }
}

@media (max-width: 700px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(6, 8, 15, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 1.5rem var(--gap);
    gap: 1.25rem;
    border-bottom: 1px solid var(--border);
  }

  .nav__links.active {
    display: flex;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav__toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    padding-top: 8rem;
  }

  .hero__title {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .hero__cta {
    flex-direction: column;
    align-items: center;
  }

  .services,
  .about,
  .blog,
  .contact {
    padding: 5rem 0;
  }

  .footer__inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .about__hex-grid {
    grid-template-columns: repeat(3, 60px);
  }

  .hex {
    width: 60px;
    height: 69px;
  }
}