/* ============================================
   NEURALARC — STYLES
   Palette: Quantum Core dark + Red Passion accent
   Fonts: Syne + Space Mono
   ============================================ */

/* --- RESET & BASE --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --red:       #C63E3E;
  --orange:    #E0693D;
  --lime:      #D0EF5E;
  --dark:      #0E0E0E;
  --dark-2:    #161616;
  --dark-3:    #1E1E1E;
  --dark-4:    #2A2A2A;
  --muted:     #6B6B6B;
  --light:     #E8E4DF;
  --white:     #F5F5F5;

  --font-display: 'Syne', sans-serif;
  --font-mono:    'Space Mono', monospace;

  --radius:    4px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --max-w:     1200px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--dark);
  color: var(--light);
  font-family: var(--font-display);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* --- SCROLLBAR --- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--red); border-radius: 2px; }

/* --- CONTAINER --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- REVEAL ANIMATIONS --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="100"] { transition-delay: 0.1s; }
.reveal[data-delay="200"] { transition-delay: 0.2s; }
.reveal[data-delay="300"] { transition-delay: 0.3s; }

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  transition: background var(--transition), backdrop-filter var(--transition), padding var(--transition);
}
.nav.scrolled {
  background: rgba(14, 14, 14, 0.92);
  backdrop-filter: blur(16px);
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(198, 62, 62, 0.15);
}
.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.08em;
}
.logo-mark {
  width: 32px; height: 32px;
  background: var(--red);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}
.logo-text {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--white);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.nav__links a {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--white); }
.nav__cta {
  color: var(--white) !important;
  border: 1px solid var(--red);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  transition: background var(--transition) !important;
}
.nav__cta:hover { background: var(--red) !important; }
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--light);
  transition: var(--transition);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 8rem 2rem 4rem;
}
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(198, 62, 62, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 62, 62, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--orange);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero__eyebrow .dot {
  width: 6px; height: 6px;
  background: var(--lime);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}
.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 1.75rem;
}
.hero__headline em {
  font-style: normal;
  color: var(--red);
  position: relative;
  display: inline-block;
}
.hero__headline em::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--red), var(--orange));
  transform: scaleX(0);
  transform-origin: left;
  animation: underlineIn 1s 0.8s forwards;
}
@keyframes underlineIn {
  to { transform: scaleX(1); }
}
.hero__sub {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}
.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}
.hero__stats {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; }
.stat__num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat__unit { color: var(--red); font-size: 1.5rem; font-weight: 800; display: inline; }
.stat__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 0.25rem;
}
.stat__divider {
  width: 1px; height: 48px;
  background: var(--dark-4);
}
.hero__scroll-hint {
  position: absolute;
  bottom: 2.5rem; right: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
}
.hero__scroll-hint span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--muted);
  text-transform: uppercase;
  writing-mode: vertical-rl;
}
.scroll-line {
  width: 1px; height: 60px;
  background: linear-gradient(to bottom, var(--red), transparent);
  animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
}
.btn--primary {
  background: var(--red);
  color: #fff;
}
.btn--primary:hover {
  background: #a83232;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(198, 62, 62, 0.35);
}
.btn--ghost {
  background: transparent;
  color: var(--light);
  border: 1px solid var(--dark-4);
}
.btn--ghost:hover {
  border-color: var(--red);
  color: var(--white);
  transform: translateY(-2px);
}
.btn--full { width: 100%; justify-content: center; }

/* ============================================
   MARQUEE
   ============================================ */
.marquee-strip {
  background: var(--dark-2);
  border-top: 1px solid var(--dark-4);
  border-bottom: 1px solid var(--dark-4);
  overflow: hidden;
  padding: 1rem 0;
}
.marquee-track {
  display: flex;
  gap: 2.5rem;
  white-space: nowrap;
  animation: marquee 28s linear infinite;
  width: max-content;
}
.marquee-track span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.marquee-track .sep { color: var(--red); }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================
   SECTION SHARED
   ============================================ */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 4rem;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  border: 1px solid rgba(224, 105, 61, 0.3);
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  margin-bottom: 1.25rem;
}
.section-header h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 1rem;
}
.section-header h2 em {
  font-style: normal;
  color: var(--red);
}
.section-header p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* ============================================
   PLATFORM
   ============================================ */
.platform {
  padding: 7rem 0;
  background: var(--dark);
}
.platform__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5px;
  background: var(--dark-4);
  border: 1px solid var(--dark-4);
}
.platform__card {
  background: var(--dark-2);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: background var(--transition);
}
.platform__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--orange));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.platform__card:hover { background: var(--dark-3); }
.platform__card:hover::before { transform: scaleX(1); }
.card__icon {
  width: 44px; height: 44px;
  color: var(--red);
  margin-bottom: 1.5rem;
}
.card__icon svg { width: 100%; height: 100%; }
.platform__card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.platform__card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.card__tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  border: 1px solid rgba(224, 105, 61, 0.25);
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
}

/* ============================================
   SPOTLIGHT
   ============================================ */
.spotlight {
  padding: 7rem 0;
  background: var(--dark-2);
  border-top: 1px solid var(--dark-4);
  border-bottom: 1px solid var(--dark-4);
}
.spotlight__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.spotlight__text .section-tag { display: inline-block; }
.spotlight__text h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 1rem 0 1.25rem;
}
.spotlight__text h2 em {
  font-style: normal;
  color: var(--red);
}
.spotlight__text > p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 2rem;
}
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.feature-icon {
  color: var(--red);
  font-size: 1rem;
  margin-top: 2px;
  flex-shrink: 0;
}
.feature-list strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.15rem;
}
.feature-list span {
  font-size: 0.8rem;
  color: var(--muted);
  font-family: var(--font-mono);
}

/* --- TERMINAL --- */
.terminal {
  background: var(--dark);
  border: 1px solid var(--dark-4);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(198,62,62,0.1);
}
.terminal__bar {
  background: var(--dark-3);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--dark-4);
}
.terminal__bar .dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.terminal__bar .dot.red    { background: #FF5F57; }
.terminal__bar .dot.yellow { background: #FEBC2E; }
.terminal__bar .dot.green  { background: #28C840; }
.terminal__title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  margin-left: 0.5rem;
  letter-spacing: 0.05em;
}
.terminal__body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 2;
  min-height: 260px;
}
.t-line { display: flex; gap: 0.5rem; }
.t-prompt { color: var(--red); }
.t-cmd { color: var(--lime); }
.t-out { color: var(--muted); padding-left: 1rem; }
.t-ok { color: #28C840; }
.t-accent { color: var(--orange); padding-left: 1rem; font-weight: 700; }
.t-cursor {
  display: inline-block;
  animation: blink 1s step-end infinite;
  color: var(--lime);
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ============================================
   CLIENTS
   ============================================ */
.clients {
  padding: 7rem 0;
  background: var(--dark);
}
.clients__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--dark-4);
  border: 1px solid var(--dark-4);
  margin-bottom: 4rem;
}
.client-card {
  background: var(--dark-2);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  transition: background var(--transition);
}
.client-card:hover { background: var(--dark-3); }
.client-icon { font-size: 2rem; }
.client-card strong {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
}
.client-card span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.testimonial {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  padding: 3rem;
  border: 1px solid var(--dark-4);
  position: relative;
}
.testimonial::before {
  content: '"';
  position: absolute;
  top: -1.5rem; left: 2rem;
  font-size: 6rem;
  color: var(--red);
  font-family: var(--font-display);
  line-height: 1;
  opacity: 0.4;
}
.testimonial blockquote {
  font-size: 1.05rem;
  color: var(--light);
  line-height: 1.75;
  font-style: italic;
  margin-bottom: 1.25rem;
}
.testimonial cite {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  position: relative;
  padding: 7rem 0;
  overflow: hidden;
}
.cta-section__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 50%, rgba(198, 62, 62, 0.12) 0%, transparent 70%);
  z-index: 0;
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section__inner {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}
.cta-section__inner h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 1rem 0 1.25rem;
}
.cta-section__inner h2 em {
  font-style: normal;
  color: var(--red);
}
.cta-section__inner > p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}
.cta-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.cta-form input {
  background: var(--dark-2);
  border: 1px solid var(--dark-4);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 0.9rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
}
.cta-form input::placeholder { color: var(--muted); }
.cta-form input:focus { border-color: var(--red); }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--dark-2);
  border-top: 1px solid var(--dark-4);
  padding: 4rem 0 2rem;
}
.footer__top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--dark-4);
}
.footer__brand p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.7;
  margin-top: 1rem;
}
.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 0.25rem;
}
.footer__col a {
  font-size: 0.85rem;
  color: var(--muted);
  transition: color var(--transition);
}
.footer__col a:hover { color: var(--white); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .spotlight__inner { grid-template-columns: 1fr; gap: 3rem; }
  .clients__grid { grid-template-columns: repeat(3, 1fr); }
  .footer__top { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer__links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .hero { padding: 7rem 1.5rem 3rem; }
  .hero__stats { gap: 1.5rem; }
  .platform__grid { grid-template-columns: 1fr; }
  .clients__grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  .container { padding: 0 1.25rem; }
}

@media (max-width: 420px) {
  .clients__grid { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}