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

:root {
  --blue:       #0057FF;
  --blue-light: #3b82f6;
  --blue-dark:  #003ac7;
  --accent:     #00C2FF;
  --dark:       #0a0f1e;
  --dark-2:     #111827;
  --dark-3:     #1e2a3a;
  --mid:        #374151;
  --muted:      #6b7280;
  --light:      #f0f4ff;
  --white:      #ffffff;
  --radius:     12px;
  --shadow:     0 4px 24px rgba(0,0,0,.12);
  --transition: .25s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--dark);
  color: var(--white);
  line-height: 1.6;
  font-size: 16px;
}

a { color: inherit; text-decoration: none; }

/* ===== LAYOUT ===== */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section-dark { background: var(--dark-2); }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}
.section-header p { color: var(--muted); margin-top: 12px; font-size: 1.05rem; }

/* ===== TYPOGRAPHY ===== */
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; line-height: 1.1; letter-spacing: -.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; line-height: 1.2; letter-spacing: -.01em; }
h3 { font-size: 1.15rem; font-weight: 600; }
p  { color: #cbd5e1; }

.gradient-text {
  background: linear-gradient(90deg, var(--blue-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-tag {
  display: inline-block;
  background: rgba(0,87,255,.15);
  color: var(--blue-light);
  border: 1px solid rgba(0,87,255,.3);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}
.btn-primary  { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(0,87,255,.4); }
.btn-outline  { border: 1.5px solid rgba(255,255,255,.25); color: #fff; background: transparent; }
.btn-outline:hover { border-color: var(--blue-light); color: var(--blue-light); }
.btn-ghost    { color: var(--blue-light); background: transparent; padding-left: 0; }
.btn-ghost:hover { color: var(--accent); }
.btn-full     { width: 100%; justify-content: center; padding: 14px; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(10,15,30,.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,.4);
  padding: 12px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -.02em;
  display: flex;
  align-items: center;
  gap: 2px;
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  background: var(--blue);
  border-radius: 8px;
  font-size: 1rem;
  margin-right: 4px;
}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a:not(.btn) {
  color: #94a3b8;
  font-size: .9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:not(.btn):hover { color: #fff; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span { display: block; width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(0,87,255,.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 70%, rgba(0,194,255,.1) 0%, transparent 60%),
    var(--dark);
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,87,255,.12);
  border: 1px solid rgba(0,87,255,.3);
  color: var(--blue-light);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.badge::before { content: '●'; font-size: .5rem; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }

.hero-content h1 { margin-bottom: 20px; }
.hero-sub {
  font-size: 1.15rem;
  color: #94a3b8;
  max-width: 580px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; }
.stat-num { font-size: 1.8rem; font-weight: 800; color: #fff; line-height: 1; }
.stat-label { font-size: .78rem; color: var(--muted); margin-top: 4px; letter-spacing: .04em; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,.1); }

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.about-card {
  padding: 24px;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.06);
  transition: transform var(--transition), box-shadow var(--transition);
}
.about-card:hover { transform: translateX(6px); box-shadow: var(--shadow); }
.card-accent { background: rgba(0,87,255,.08); border-color: rgba(0,87,255,.2); }
.card-dark  { background: var(--dark-3); }
.card-icon { font-size: 1.8rem; margin-bottom: 4px; }
.about-card strong { font-size: 1rem; }
.about-card p { font-size: .9rem; color: var(--muted); }

.about-text { display: flex; flex-direction: column; gap: 16px; }
.about-text h2 { margin-bottom: 4px; }
.about-text h2 em { font-style: normal; color: var(--blue-light); }
.about-text p { font-size: 1rem; line-height: 1.75; }

/* ===== SERVICES ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,.3);
  border-color: rgba(0,87,255,.3);
}
.service-card-highlight {
  background: linear-gradient(135deg, rgba(0,87,255,.15), rgba(0,194,255,.08));
  border-color: rgba(0,87,255,.35);
}
.service-badge {
  position: absolute;
  top: -12px; left: 24px;
  background: var(--blue);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 3px 12px;
  border-radius: 999px;
}
.service-icon { font-size: 2rem; }
.service-card h3 { font-size: 1.05rem; }
.service-card p  { font-size: .9rem; color: #94a3b8; }
.service-card ul { list-style: none; display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
.service-card ul li {
  font-size: .85rem;
  color: var(--muted);
  padding-left: 16px;
  position: relative;
}
.service-card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--blue-light);
  font-size: .75rem;
}

/* ===== METHODOLOGY ===== */
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  flex-wrap: wrap;
}
.step {
  flex: 1;
  min-width: 200px;
  padding: 28px 24px;
  background: var(--dark-2);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color var(--transition), transform var(--transition);
}
.step:hover { border-color: rgba(0,87,255,.4); transform: translateY(-3px); }
.step-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(0,87,255,.3);
  line-height: 1;
}
.step-content h3 { font-size: 1rem; margin-bottom: 6px; }
.step-content p  { font-size: .875rem; color: var(--muted); }
.step-arrow {
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-size: 1.5rem;
  color: rgba(0,87,255,.4);
  align-self: center;
  margin-top: -8px;
}

/* ===== TESTIMONIALS ===== */
.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: border-color var(--transition);
}
.testimonial:hover { border-color: rgba(0,87,255,.3); }
.testimonial-text {
  font-size: .95rem;
  color: #cbd5e1;
  line-height: 1.7;
  flex: 1;
}
.testimonial-text::before { content: '\201C'; font-size: 2rem; color: var(--blue); line-height: 0; vertical-align: -.4em; margin-right: 4px; }
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(255,255,255,.07);
  padding-top: 20px;
}
.author-avatar {
  width: 42px; height: 42px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.testimonial-author strong { display: block; font-size: .9rem; }
.testimonial-author span  { font-size: .8rem; color: var(--muted); }

/* ===== CTA / CONTACT ===== */
.cta-section {
  background: linear-gradient(135deg, rgba(0,87,255,.12) 0%, rgba(0,194,255,.05) 100%);
  border-top: 1px solid rgba(0,87,255,.15);
}
.cta-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.cta-inner h2 { margin-bottom: 12px; }
.cta-inner > p { color: var(--muted); margin-bottom: 40px; font-size: 1.05rem; }

.contact-form { display: flex; flex-direction: column; gap: 16px; text-align: left; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
label { font-size: .82rem; font-weight: 600; color: #94a3b8; letter-spacing: .03em; }

input, textarea, select {
  background: rgba(255,255,255,.05);
  border: 1.5px solid rgba(255,255,255,.1);
  border-radius: 8px;
  padding: 11px 14px;
  color: #fff;
  font-family: inherit;
  font-size: .95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
  resize: vertical;
}
input::placeholder, textarea::placeholder { color: rgba(255,255,255,.3); }
select option { background: var(--dark-2); }
input:focus, textarea:focus, select:focus {
  border-color: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}

.form-note { text-align: center; font-size: .8rem; color: var(--muted); margin-top: 4px; }

/* success state */
.form-success {
  text-align: center;
  padding: 48px 24px;
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.form-success .check { font-size: 3rem; }
.form-success h3 { font-size: 1.4rem; }
.form-success p { color: var(--muted); }

/* ===== FOOTER ===== */
.footer { background: var(--dark); border-top: 1px solid rgba(255,255,255,.07); padding: 64px 0 0; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  padding-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 12px; }
.footer-brand p { font-size: .9rem; color: var(--muted); max-width: 280px; }

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-links div { display: flex; flex-direction: column; gap: 10px; }
.footer-links strong { font-size: .82rem; color: #fff; letter-spacing: .05em; text-transform: uppercase; margin-bottom: 4px; }
.footer-links a { font-size: .88rem; color: var(--muted); transition: color var(--transition); }
.footer-links a:hover { color: var(--blue-light); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 20px 0;
  font-size: .82rem;
  color: var(--muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials  { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }

  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10,15,30,.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links a:not(.btn) { font-size: 1.2rem; }
  .hamburger { display: flex; z-index: 101; }

  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .services-grid { grid-template-columns: 1fr; }
  .steps { flex-direction: column; }
  .step-arrow { transform: rotate(90deg); align-self: flex-start; padding: 4px 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .testimonials { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-stats { gap: 20px; }
  .stat-divider { display: none; }
  .footer-links { grid-template-columns: 1fr; }
}