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

:root {
  --bg-0:       #06090f;
  --bg-1:       #0c1220;
  --bg-2:       #101828;
  --bg-card:    #131e30;
  --border:     #1d2d47;
  --border-lg:  #253650;

  --accent:     #f97316;
  --accent-dim: #c45a0f;
  --accent-glow:rgba(249, 115, 22, 0.18);

  --text-1:     #eef2f8;
  --text-2:     #94a3b8;
  --text-3:     #5a7094;

  --light-bg:   #f8fafc;
  --light-text: #0f172a;
  --light-sub:  #475569;

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --max-w: 1080px;
  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 20px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--light-text);
  background: var(--light-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
address { font-style: normal; }

/* ===========================
   LAYOUT
=========================== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.75rem;
}

.section { padding: 6rem 0; }
.section-dark {
  background: var(--bg-1);
  color: var(--text-1);
}

/* ===========================
   TYPOGRAPHY
=========================== */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.section-header {
  max-width: 540px;
  margin-bottom: 3rem;
}

.gradient-text {
  background: linear-gradient(135deg, #f97316 0%, #fb923c 40%, #fbbf24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===========================
   SCROLL ANIMATIONS
=========================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.fade-in.visible {
  opacity: 1;
  transform: none;
}
.service-card:nth-child(2) { transition-delay: 0.08s; }
.service-card:nth-child(3) { transition-delay: 0.16s; }
.service-card:nth-child(4) { transition-delay: 0.24s; }
.contact-card:nth-child(2) { transition-delay: 0.1s; }
.contact-card:nth-child(3) { transition-delay: 0.2s; }

/* ===========================
   HEADER / NAV
=========================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 1.1rem 0;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease),
              padding 0.3s var(--ease), backdrop-filter 0.3s;
}

.site-header.scrolled {
  background: rgba(10, 15, 28, 0.88);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  box-shadow: 0 1px 0 var(--border);
  padding: 0.75rem 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text-1);
}
.logo:hover { text-decoration: none; }

.logo:hover { opacity: 0.8; text-decoration: none; }

.logo-img {
  height: 38px;
  width: auto;
  display: block;
  filter: invert(1);
}
.logo-img-footer {
  height: 26px;
  filter: invert(1);
  opacity: 0.6;
}

/* Desktop nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav a {
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color 0.2s, background 0.2s;
}
.site-nav a:hover {
  color: var(--text-1);
  background: rgba(255,255,255,0.06);
  text-decoration: none;
}

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  font-weight: 600 !important;
  padding: 0.45rem 1.1rem !important;
  margin-left: 0.5rem;
}
.nav-cta:hover { background: var(--accent-dim) !important; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-2);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.nav-toggle-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle-open span:nth-child(2) { opacity: 0; }
.nav-toggle-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===========================
   HERO
=========================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-0);
  padding: 8rem 0 5rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.45;
}
.orb-1 {
  width: 650px; height: 650px;
  top: -200px; left: -150px;
  background: radial-gradient(circle, #c2410c 0%, transparent 70%);
}
.orb-2 {
  width: 500px; height: 500px;
  bottom: -150px; right: -100px;
  background: radial-gradient(circle, #1d4ed8 0%, transparent 70%);
  opacity: 0.3;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--text-1);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.25rem;
}
.hero-badges span {
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--border-lg);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-2);
  background: rgba(255,255,255,0.04);
  letter-spacing: 0.04em;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-2);
  max-width: 52ch;
  margin: 0 auto 2.5rem;
  line-height: 1.65;
}
.br-lg { display: none; }

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

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-3);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  z-index: 1;
}
.scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, var(--text-3), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ===========================
   BUTTONS
=========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.7rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s var(--ease);
  text-decoration: none;
  border: 2px solid transparent;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 0 6px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text-1);
  border-color: var(--border-lg);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.06);
  border-color: var(--text-3);
}

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

/* ===========================
   ABOUT
=========================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-logo {
  height: 90px;
  width: auto;
  display: block;
  margin-bottom: 1.75rem;
}

.about-text p {
  color: var(--light-sub);
  margin-bottom: 1rem;
  font-size: 1.05rem;
  max-width: 56ch;
}
.about-text p strong { color: var(--light-text); }
.about-text h2 { color: var(--light-text); }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius);
  overflow: hidden;
}

.stat {
  padding: 1.75rem 1.5rem;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.stat:hover { background: #f1f5f9; }

.stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--light-text);
  letter-spacing: -0.04em;
  line-height: 1;
}
.stat-label {
  font-size: 0.82rem;
  color: var(--light-sub);
  font-weight: 500;
}

/* ===========================
   SERVICES
=========================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s var(--ease);
}
.service-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), inset 0 0 40px var(--accent-glow);
  transform: translateY(-3px);
}

.service-icon-wrap {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--accent-glow);
  margin-bottom: 1.25rem;
  border: 1px solid rgba(249,115,22,0.25);
}
.service-icon-wrap svg {
  width: 22px; height: 22px;
  stroke: var(--accent);
}

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
.service-card p {
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ===========================
   MPAI
=========================== */
.section-mpai {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.mpai-inner {
  display: flex;
  gap: 4rem;
  align-items: flex-start;
}

.mpai-badge {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.mpai-badge .mpai-logo-boxes {
  display: flex;
  gap: 0.75rem;
}

.mpai-logo-box {
  display: grid;
  place-items: center;
  padding: 0.75rem 1.1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-lg);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
}
a.mpai-logo-box:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  text-decoration: none;
}

.mpai-img {
  height: 30px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.mpai-role {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(249,115,22,0.3);
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
}

.mpai-body { color: var(--text-1); }
.mpai-body h2 { color: var(--text-1); margin-bottom: 1rem; }
.mpai-body p {
  color: var(--text-2);
  max-width: 55ch;
  margin-bottom: 1.75rem;
  font-size: 1.05rem;
}
.mpai-body p strong { color: var(--text-1); }

/* ===========================
   CONTACT
=========================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
}

.contact-icon {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--accent-glow);
  border: 1px solid rgba(249,115,22,0.25);
  margin-bottom: 1.25rem;
}
.contact-icon svg {
  width: 22px; height: 22px;
  stroke: var(--accent);
}

.contact-card h3 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 0.75rem;
}
.contact-card address,
.contact-card p {
  font-size: 0.98rem;
  color: var(--text-2);
  line-height: 1.8;
}
.contact-card a { color: var(--text-1); }
.contact-card a:hover { color: var(--accent); text-decoration: none; }
.contact-sub {
  font-size: 0.85rem !important;
  color: var(--text-3) !important;
  margin-top: 0.25rem;
}

/* ===========================
   FOOTER
=========================== */
.site-footer {
  background: var(--bg-0);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-2);
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
}
.footer-nav a {
  font-size: 0.88rem;
  color: var(--text-3);
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--text-1); text-decoration: none; }

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-3);
}

/* ===========================
   RESPONSIVE
=========================== */
@media (min-width: 900px) {
  .br-lg { display: inline; }
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-text p { max-width: none; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .mpai-inner { flex-direction: column; gap: 2rem; }
  .mpai-badge { flex-direction: row; }
}

@media (max-width: 640px) {
  .site-header { padding: 0.9rem 0; }

  /* Mobile nav */
  .nav-toggle { display: flex; }
  .site-nav {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 5rem 1.5rem 2rem;
    background: rgba(6, 9, 15, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    z-index: 100;
    border-bottom: 1px solid var(--border);
  }
  .site-nav.nav-open { display: flex; }
  .site-nav a { font-size: 1.1rem; padding: 0.7rem 0; width: 100%; }
  .nav-cta { margin-left: 0 !important; margin-top: 0.5rem; }

  .hero h1 { font-size: 2.8rem; }
  .hero-sub { font-size: 1rem; }
  .section { padding: 4rem 0; }

  .services-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .footer-nav { flex-wrap: wrap; gap: 1rem; }
}