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

:root {
  --dark:      #09090f;
  --dark-2:    #111118;
  --dark-3:    #1a1a24;
  --silver:    #b0b8c8;
  --silver-lt: #dde3ed;
  --accent:    #c8d0e0;
  --blue:      #2a4cff;
  --blue-mid:  #4466ff;
  --blue-dim:  rgba(42,76,255,.12);
  --white:     #ffffff;
  --gray-900:  #1a1a24;
  --gray-700:  #3d3d52;
  --gray-500:  #7a7a96;
  --gray-200:  #e2e4ee;
  --gray-100:  #f4f5f8;
  --radius:    12px;
  --shadow:    0 4px 24px rgba(0,0,0,.18);
  --shadow-lg: 0 12px 48px rgba(0,0,0,.28);
  --transition:.3s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
}

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

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 100px 0; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn-primary:hover {
  background: var(--blue-mid);
  border-color: var(--blue-mid);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(42,76,255,.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.45);
}
.btn-outline:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.8);
}

/* ===== SECTION TAGS & HEADERS ===== */
.section-tag {
  display: inline-block;
  background: var(--blue-dim);
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 2px;
  margin-bottom: 16px;
  border-left: 3px solid var(--blue);
}

.section-header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 64px;
}
.section-header h2 { margin-bottom: 16px; }
.section-header p  { color: var(--gray-500); font-size: 17px; }
.section-header .section-tag { margin-bottom: 16px; }

h1 {
  font-size: clamp(44px, 6vw, 80px);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -.03em;
  color: var(--white);
}

h2 {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.025em;
  color: var(--gray-900);
}

h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
  letter-spacing: -.01em;
}

/* ===== HEADER ===== */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 32px;
}

.logo-link { display: flex; align-items: center; flex-shrink: 0; }
.logo-img   { height: 36px; width: auto; display: block; }
.logo-white { display: none; }
.logo-dark  { display: block; }

.nav {
  display: flex;
  gap: 4px;
}
.nav a {
  padding: 8px 16px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--gray-700);
  transition: var(--transition);
}
.nav a:hover, .nav a.active {
  background: var(--blue-dim);
  color: var(--blue);
}

.header-actions { display: flex; align-items: center; gap: 12px; }

.lang-toggle {
  padding: 7px 16px;
  border-radius: 3px;
  border: 2px solid var(--gray-900);
  background: transparent;
  color: var(--gray-900);
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: .1em;
}
.lang-toggle:hover {
  background: var(--gray-900);
  color: var(--white);
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-900);
  border-radius: 1px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #060612 0%, #0a0a1e 40%, #0d0d28 70%, #06060f 100%);
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42,76,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42,76,255,.07) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-bg::before {
  content: '';
  position: absolute;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(42,76,255,.18) 0%, transparent 65%);
  top: -150px; right: -100px;
}

.hero-bg::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(42,76,255,.10) 0%, transparent 65%);
  bottom: 0; left: -80px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding-top: 60px;
  padding-bottom: 120px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(42,76,255,.15);
  color: rgba(180,200,255,.9);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 2px;
  margin-bottom: 32px;
  border-left: 3px solid var(--blue);
}

.hero-content p {
  color: rgba(255,255,255,.6);
  font-size: 19px;
  max-width: 580px;
  margin: 28px 0 44px;
  line-height: 1.7;
}

.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-scroll {
  position: absolute;
  bottom: 48px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.scroll-line {
  width: 1px;
  height: 64px;
  background: linear-gradient(to bottom, rgba(255,255,255,.5), transparent);
  margin: 0 auto;
  animation: scroll-anim 2s ease-in-out infinite;
}
@keyframes scroll-anim {
  0%   { opacity: 1; transform: scaleY(1); transform-origin: top; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* ===== ABOUT ===== */
.about { background: var(--white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-logo-display {
  width: 100%;
  background: var(--dark);
  border-radius: var(--radius);
  padding: 60px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

.about-logo-img {
  width: 100%;
  max-width: 320px;
  /* invert black SVG to white for dark bg */
  filter: invert(1);
}

.about-badge {
  position: absolute;
  background: var(--white);
  border-radius: 8px;
  padding: 14px 20px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--gray-200);
  z-index: 3;
}
.about-badge--1 { top: 24px; right: -20px; }
.about-badge--2 { bottom: 48px; left: -20px; }

.badge-num {
  display: block;
  font-size: 28px;
  font-weight: 900;
  color: var(--blue);
  line-height: 1;
  letter-spacing: -.03em;
}
.badge-label {
  display: block;
  font-size: 12px;
  color: var(--gray-500);
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-top: 4px;
}

.about-text .section-tag { margin-bottom: 16px; }
.about-text h2 { margin-bottom: 24px; }
.about-text p  { color: var(--gray-500); font-size: 16px; margin-bottom: 20px; }

.company-info {
  margin-top: 28px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}

.info-row {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--gray-200);
  font-size: 14px;
  gap: 16px;
}
.info-row:last-child { border-bottom: none; }

.info-label {
  font-weight: 700;
  color: var(--gray-500);
  letter-spacing: .06em;
  text-transform: uppercase;
  font-size: 11px;
  min-width: 70px;
  flex-shrink: 0;
}
.info-val { color: var(--gray-900); font-weight: 500; }

/* ===== SERVICES ===== */
.services { background: var(--dark); }
.services .section-tag { background: rgba(42,76,255,.2); color: #8ab4ff; }
.services h2 { color: var(--white); }
.services .section-header p { color: rgba(255,255,255,.45); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-card {
  background: var(--dark-2);
  padding: 40px 32px;
  position: relative;
  transition: var(--transition);
  border: none;
}
.service-card:hover {
  background: var(--dark-3);
  z-index: 1;
}

.service-card--featured {
  background: linear-gradient(135deg, rgba(42,76,255,.2), rgba(42,76,255,.08));
  border: 1px solid rgba(42,76,255,.3) !important;
}

.service-num {
  font-size: 11px;
  font-weight: 800;
  color: var(--blue);
  letter-spacing: .12em;
  margin-bottom: 20px;
  font-family: monospace;
}

.service-icon { font-size: 32px; margin-bottom: 16px; }
.service-card h3 { color: var(--white); font-size: 17px; margin-bottom: 12px; }
.service-card p  { color: rgba(255,255,255,.5); font-size: 14px; line-height: 1.7; }

/* ===== PROCESS ===== */
.process { background: var(--gray-100); }

.process-steps {
  display: flex;
  align-items: flex-start;
}

.process-step {
  flex: 1;
  text-align: center;
  padding: 0 24px;
}

.step-num {
  font-size: 11px;
  font-weight: 800;
  color: var(--blue);
  letter-spacing: .14em;
  font-family: monospace;
  background: var(--blue-dim);
  display: inline-block;
  padding: 6px 12px;
  border-radius: 2px;
  margin-bottom: 20px;
  border-left: 3px solid var(--blue);
}

.process-step h3 { margin-bottom: 12px; font-size: 17px; }
.process-step p  { color: var(--gray-500); font-size: 15px; }

.process-connector {
  flex-shrink: 0;
  width: 40px;
  height: 1px;
  background: linear-gradient(to right, var(--blue-dim), rgba(42,76,255,.4));
  margin-top: 26px;
}

/* ===== WHY US ===== */
.whyus { background: var(--white); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.why-card {
  padding: 36px 28px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: var(--transition);
  border-top: 3px solid var(--blue);
}
.why-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.why-icon { font-size: 32px; margin-bottom: 16px; }
.why-card h3 { margin-bottom: 12px; font-size: 16px; }
.why-card p  { color: var(--gray-500); font-size: 14px; line-height: 1.7; }

/* ===== CONTACT ===== */
.contact { background: var(--dark); }
.contact .section-tag { background: rgba(42,76,255,.2); color: #8ab4ff; }
.contact h2 { color: var(--white); }
.contact .contact-info > p { color: rgba(255,255,255,.5); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: start;
}

.contact-info .section-tag { margin-bottom: 16px; }
.contact-info h2 { margin-bottom: 20px; }
.contact-info > p { font-size: 16px; margin-bottom: 40px; }

.contact-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.contact-details li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 15px;
  color: rgba(255,255,255,.6);
  line-height: 1.7;
}
.contact-details a { color: rgba(255,255,255,.6); transition: var(--transition); }
.contact-details a:hover { color: var(--white); }
.detail-icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.contact-details strong { color: var(--white); display: block; }

/* ===== FORM ===== */
.contact-form {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 12px;
  font-weight: 700;
  color: rgba(255,255,255,.5);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
  color: var(--white);
  background: rgba(255,255,255,.05);
  transition: var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,.25); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  background: rgba(42,76,255,.08);
  box-shadow: 0 0 0 3px rgba(42,76,255,.15);
}

.form-success {
  display: none;
  margin-top: 16px;
  padding: 14px 20px;
  background: rgba(5,150,105,.15);
  color: #6ee7b7;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid rgba(5,150,105,.3);
}

/* ===== FOOTER ===== */
.footer { background: #050508; }

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  padding: 64px 24px 44px;
}

.footer-logo { height: 40px; width: auto; margin-bottom: 16px; }
.footer-brand p {
  color: rgba(255,255,255,.35);
  font-size: 14px;
  margin-bottom: 6px;
}
.footer-legal { font-size: 12px !important; color: rgba(255,255,255,.2) !important; }

.footer-links { display: flex; gap: 60px; }
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col h4 {
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.footer-col a,
.footer-col span {
  color: rgba(255,255,255,.35);
  font-size: 14px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 20px 24px;
  text-align: center;
  color: rgba(255,255,255,.2);
  font-size: 12px;
  letter-spacing: .03em;
}

/* ===== MOBILE NAV ===== */
.nav.open {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(12px);
  padding: 20px 24px 32px;
  border-bottom: 1px solid var(--gray-200);
  z-index: 999;
}

/* ===== REVEAL ANIMATION ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid      { grid-template-columns: repeat(2, 1fr); }
  .about-grid    { grid-template-columns: 1fr; gap: 48px; }
  .about-badge--1 { right: 0; }
  .about-badge--2 { left:  0; }
  .process-steps { flex-wrap: wrap; }
  .process-connector { display: none; }
  .process-step  { flex: 0 0 45%; margin-bottom: 32px; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .nav { display: none; }
  .burger { display: flex; }
  .services-grid   { grid-template-columns: 1fr; gap: 1px; }
  .why-grid        { grid-template-columns: 1fr 1fr; }
  .contact-grid    { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner    { flex-direction: column; gap: 32px; padding: 48px 24px 32px; }
  .footer-links    { gap: 32px; flex-wrap: wrap; }
  .form-row        { grid-template-columns: 1fr; }
  .process-step    { flex: 0 0 100%; }
  h1 { font-size: 40px; }
  h2 { font-size: 30px; }
}

@media (max-width: 480px) {
  .why-grid       { grid-template-columns: 1fr; }
  .contact-form   { padding: 28px 20px; }
  .hero-btns      { flex-direction: column; align-items: flex-start; }
  .about-badge--1,
  .about-badge--2 { position: static; margin-top: 12px; display: inline-block; }
}