/* ============================================
   Structa Solutions — Stylesheet
   Brand: Deep Navy + Cyan accent
   ============================================ */

:root {
  --navy-900: #0A1733;
  --navy-800: #0B1B3D;
  --navy-700: #122655;
  --navy-600: #1B3170;
  --cyan: #4FC3F7;
  --cyan-bright: #7FD8FF;
  --cyan-deep: #2BA4DC;
  --white: #ffffff;
  --ink: #0A1733;
  --muted: #5b6b88;
  --soft: #f5f8ff;
  --border: rgba(11, 27, 61, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);
  --shadow-sm: 0 2px 8px rgba(10, 23, 51, 0.06);
  --shadow-md: 0 10px 30px rgba(10, 23, 51, 0.10);
  --shadow-lg: 0 25px 60px rgba(10, 23, 51, 0.18);
  --radius: 14px;
  --radius-lg: 22px;
  --max: 1200px;
  --font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.accent { color: var(--cyan); }
.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--cyan-deep);
  margin-bottom: 14px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-primary {
  background: var(--cyan);
  color: var(--navy-900);
  box-shadow: 0 8px 22px rgba(79, 195, 247, 0.35);
}
.btn-primary:hover { background: var(--cyan-bright); transform: translateY(-2px); }
.btn-outline {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--white);
}
.btn-outline:hover { background: rgba(255, 255, 255, 0.08); border-color: var(--cyan); }
.btn-ghost { color: var(--white); padding: 10px 16px; }
.btn-ghost:hover { color: var(--cyan); }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(10, 23, 51, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: padding .25s ease, background .25s ease;
}
.site-header.scrolled { padding: 10px 0; background: rgba(10, 23, 51, 0.95); }
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo { display: flex; align-items: center; }
.logo-img { height: 32px; width: auto; }
.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav a {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color .15s ease;
}
.nav a:hover { color: var(--cyan); }
.nav .btn-primary, .nav .btn-ghost { padding: 9px 18px; }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 180px 0 120px;
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 60%, #0d2150 100%);
  color: var(--white);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
}
.orb-1 {
  width: 480px; height: 480px;
  background: radial-gradient(circle, var(--cyan) 0%, transparent 70%);
  top: -100px; right: -120px;
}
.orb-2 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, #1B3170 0%, transparent 70%);
  bottom: -120px; left: -100px;
  opacity: 0.7;
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.hero-content { position: relative; text-align: center; max-width: 880px; }
.hero-content { margin-left: auto; margin-right: auto; }
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
}
.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  color: rgba(255, 255, 255, 0.78);
  max-width: 680px;
  margin: 0 auto 36px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 50px;
  flex-wrap: wrap;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stats div { display: flex; flex-direction: column; align-items: center; }
.hero-stats strong {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--cyan);
  font-weight: 700;
}
.hero-stats span { font-size: 0.85rem; color: rgba(255,255,255,0.65); margin-top: 4px; }

/* ===== Vision / Mission ===== */
.vm { padding: 100px 0; background: var(--soft); }
.vm-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.vm-card {
  background: var(--white);
  padding: 44px 38px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.vm-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.vm-icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-deep) 100%);
  color: var(--white);
  border-radius: 14px;
  margin-bottom: 22px;
}
.vm-icon svg { width: 28px; height: 28px; }
.vm-card h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
.vm-card p { color: var(--muted); margin: 0; font-size: 1.02rem; }

/* ===== Section Head ===== */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  line-height: 1.15;
  margin: 0 0 14px;
  letter-spacing: -0.02em;
}
.section-head p { color: var(--muted); font-size: 1.05rem; margin: 0; }

/* ===== Services ===== */
.services { padding: 110px 0; background: var(--white); }
.service-block { margin-bottom: 80px; }
.service-block:last-child { margin-bottom: 0; }
.service-intro {
  display: flex;
  align-items: flex-end;
  gap: 28px;
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.service-num {
  font-family: var(--font-display);
  font-size: 3.6rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 0.9;
  letter-spacing: -0.04em;
}
.service-intro h3 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}
.service-intro p { color: var(--muted); margin: 0; max-width: 580px; flex: 1; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature {
  padding: 28px 26px;
  background: var(--soft);
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.feature:hover {
  background: var(--white);
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.feature-wide { grid-column: span 1; }
.feature-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--white);
  color: var(--cyan-deep);
  border-radius: 10px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
}
.feature-icon svg { width: 22px; height: 22px; }
.feature h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 6px;
  color: var(--ink);
}
.feature p { color: var(--muted); margin: 0; font-size: 0.95rem; }

/* ===== Marketplace ===== */
.marketplace {
  padding: 110px 0;
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.marketplace::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--cyan) 0%, transparent 70%);
  opacity: 0.18;
  filter: blur(60px);
  top: -150px; right: -100px;
}
.marketplace-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
}
.marketplace-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  margin: 0 0 18px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.marketplace-copy > p {
  color: rgba(255,255,255,0.8);
  font-size: 1.05rem;
  margin: 0 0 24px;
}
.check-list {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: grid;
  gap: 12px;
}
.check-list li {
  position: relative;
  padding-left: 30px;
  color: rgba(255,255,255,0.85);
}
.check-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 18px; height: 18px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(79, 195, 247, 0.18);
}
.check-list li::after {
  content: '';
  position: absolute;
  left: 5px; top: 12px;
  width: 8px; height: 4px;
  border-left: 2px solid var(--navy-900);
  border-bottom: 2px solid var(--navy-900);
  transform: rotate(-45deg);
}

.marketplace-visual {
  position: relative;
  min-height: 460px;
  display: grid;
  place-items: center;
  padding: 20px;
}
.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 0.9rem;
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}
.floating-card .dot {
  width: 9px; height: 9px;
  background: #6ee7b7;
  border-radius: 50%;
  box-shadow: 0 0 12px #6ee7b7;
  flex-shrink: 0;
}
.floating-card .dot-cyan { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.card-1 { top: 12px; left: 0; animation-delay: 0s; }
.card-2 { top: 24px; right: 0; animation-delay: 1.5s; }
.card-3 { bottom: 12px; left: 50%; transform: translateX(-50%); animation-delay: 3s; }
.azure-badge {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 22px 36px;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-deep) 100%);
  color: var(--navy-900);
  border-radius: 18px;
  font-weight: 700;
  font-size: 1.05rem;
  font-family: var(--font-display);
  white-space: nowrap;
  box-shadow: 0 20px 50px rgba(79, 195, 247, 0.35);
}
.azure-badge svg { width: 28px; height: 28px; flex-shrink: 0; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.card-3 { animation-name: float-x; }
@keyframes float-x {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

/* ===== Why ===== */
.why { padding: 110px 0; background: var(--soft); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.why-card {
  background: var(--white);
  padding: 32px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: transform .25s ease, box-shadow .25s ease;
}
.why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.why-num {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--cyan-deep);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.why-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 0 0 10px;
}
.why-card p { color: var(--muted); margin: 0; font-size: 0.95rem; }

/* ===== CTA / Contact ===== */
.cta {
  padding: 110px 0;
  background: var(--white);
}
.cta-wrap {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: start;
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 100%);
  border-radius: var(--radius-lg);
  padding: 70px 60px;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.cta-wrap::before {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--cyan) 0%, transparent 70%);
  opacity: 0.15;
  top: -150px; right: -150px;
  filter: blur(40px);
}
.cta-copy { position: relative; }
.cta-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
  margin: 0 0 16px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.cta-copy > p { color: rgba(255,255,255,0.8); margin: 0 0 32px; }
.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 18px;
}
.contact-list li {
  display: flex;
  flex-direction: column;
}
.contact-list strong {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin-bottom: 4px;
}
.contact-list a, .contact-list span { color: rgba(255,255,255,0.9); }
.contact-list a:hover { color: var(--cyan); }

.cta-form {
  position: relative;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 32px;
  border-radius: var(--radius);
  display: grid;
  gap: 16px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.cta-form label { display: grid; gap: 6px; }
.cta-form span {
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
}
.cta-form input,
.cta-form textarea {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  color: var(--white);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color .18s ease, background .18s ease;
}
.cta-form input:focus,
.cta-form textarea:focus {
  outline: none;
  border-color: var(--cyan);
  background: rgba(255,255,255,0.08);
}
.cta-form textarea { resize: vertical; min-height: 100px; }
.cta-form .btn { width: 100%; margin-top: 6px; }
.form-status { margin: 4px 0 0; font-size: 0.9rem; min-height: 1.2em; color: var(--cyan-bright); }

/* ===== Footer ===== */
.site-footer {
  background: var(--navy-900);
  color: rgba(255,255,255,0.7);
  padding: 70px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-grid h4 {
  font-family: var(--font-display);
  color: var(--white);
  font-size: 1rem;
  margin: 0 0 16px;
}
.footer-grid a {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  padding: 4px 0;
  transition: color .15s ease;
}
.footer-grid a:hover { color: var(--cyan); }
.footer-tag {
  margin: 16px 0 0;
  font-size: 0.92rem;
  max-width: 280px;
}
.footer-base {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ===== Reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.in { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .vm-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .marketplace-grid { grid-template-columns: 1fr; gap: 40px; }
  .cta-wrap { grid-template-columns: 1fr; padding: 50px 36px; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .service-intro { flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    top: 64px;
    right: 16px;
    left: 16px;
    flex-direction: column;
    align-items: stretch;
    background: var(--navy-800);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 16px;
    gap: 4px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
    box-shadow: var(--shadow-lg);
  }
  .nav.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav a { padding: 12px 14px; }
  .nav .btn-primary, .nav .btn-ghost { width: 100%; }
  .hero { padding: 140px 0 90px; }
  .hero-stats { gap: 28px; }
  .vm, .services, .marketplace, .why, .cta { padding: 70px 0; }
  .vm-card { padding: 32px 26px; }
  .feature-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-wrap { padding: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .service-num { font-size: 2.6rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  html { scroll-behavior: auto; }
}