*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

:root {
  --bg-dark: #101014;
  --bg-card: #18181F;
  --bg-card-alt: #1E1E26;
  --bg-surface: #16161C;
  --border-color: #292933;
  --accent-blue: #4F8DE0;
  --accent-blue-hover: #3B7AD6;
  --accent-warm: #E07B4A;
  --accent-warm-hover: #D06A3A;
  --accent-gold: #D49C40;
  --accent-gold-hover: #C48C30;
  --text-light: #E5E3DF;
  --text-muted: #A09E9B;
  --text-dim: #6B6A72;
  --bg-light: #F6F4F1;
  --text-dark: #1C1C22;
  --text-dark-muted: #4A4A55;
  --white: #FFFFFF;
  --success: #46B97E;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.18);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.25);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--accent-blue); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-blue-hover); }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; }
h1 { font-size: 2.75rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1rem; letter-spacing: 0.04em; text-transform: uppercase; }

img, svg { display: block; max-width: 100%; }

/* SITE HEADER */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(16,16,20,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition-normal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-light);
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--accent-blue);
}

/* MAIN NAV - CLASS SELECTOR, never bare nav */
.main-nav { }

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 6px;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-light);
  background: rgba(255,255,255,0.06);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1010;
}

.hamburger, .hamburger::before, .hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-light);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger::before, .hamburger::after { content: ''; }

.nav-toggle.active .hamburger { background: transparent; }
.nav-toggle.active .hamburger::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active .hamburger::after { transform: translateY(-7px) rotate(-45deg); }

/* HERO SECTION - class selector */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%, rgba(79,141,224,0.10) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 80% 70%, rgba(224,123,74,0.08) 0%, transparent 60%),
    var(--bg-dark);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(16,16,20,0.2) 0%, var(--bg-dark) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(79,141,224,0.14);
  border: 1px solid rgba(79,141,224,0.28);
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--accent-blue);
  letter-spacing: 0.03em;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-light) 0%, #C8C6C1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.12rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.01em;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-blue);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--accent-blue-hover);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(79,141,224,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--text-light);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(79,141,224,0.06);
}

.btn-full { width: 100%; }

/* SECTION HEADER */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(224,123,74,0.12);
  border: 1px solid rgba(224,123,74,0.22);
  border-radius: 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-warm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.06rem;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ABOUT SECTION */
.about-section {
  padding: 100px 0;
  background: var(--bg-surface);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text .section-tag { margin-bottom: 20px; }
.about-text .section-title { margin-bottom: 20px; }
.about-text .section-desc { margin-bottom: 16px; }

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 36px;
}

.about-stat {
  text-align: center;
  padding: 20px 12px;
  background: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-blue);
  letter-spacing: -0.02em;
}

.stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.visual-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 28px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.visual-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}

.visual-icon {
  color: var(--accent-blue);
  margin-bottom: 16px;
}

.visual-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--text-light);
}

.visual-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* SERVICES SECTION */
.services-section {
  padding: 100px 0;
  background: var(--bg-dark);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 32px 26px;
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.service-card:hover {
  border-color: var(--accent-warm);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  color: var(--accent-warm);
  margin-bottom: 20px;
}

.service-title {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-light);
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* PROCESS SECTION */
.process-section {
  padding: 100px 0;
  background: var(--bg-surface);
}

.process-timeline {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 34px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.process-step {
  position: relative;
  padding-left: 88px;
  margin-bottom: 44px;
}

.process-step:last-child { margin-bottom: 0; }

.step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent-blue);
  z-index: 2;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.process-step:hover .step-number {
  border-color: var(--accent-blue);
  background: rgba(79,141,224,0.08);
}

.step-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 24px 28px;
}

.step-title {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-light);
}

.step-content p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* CONTACT SECTION */
.contact-section {
  padding: 100px 0;
  background: var(--bg-dark);
  background-image:
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(79,141,224,0.06) 0%, transparent 70%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.contact-info .section-tag { margin-bottom: 20px; }
.contact-info .section-title { margin-bottom: 16px; }
.contact-info .section-desc { margin-bottom: 32px; }

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.contact-value {
  font-size: 0.98rem;
  color: var(--text-light);
}

.contact-value[href] { color: var(--accent-blue); }
.contact-value[href]:hover { color: var(--accent-blue-hover); }

/* FORM */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 32px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-light);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(79,141,224,0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-dim);
}

.form-message {
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  min-height: 24px;
}

.form-message.success { color: var(--success); }
.form-message.error { color: var(--accent-warm); }

/* FOOTER */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-logo {
  display: inline-block;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 260px;
}

.footer-links h4 {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 16px;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links ul li {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-links ul li a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-links ul li a:hover {
  color: var(--accent-blue);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 20px 0;
  text-align: center;
  font-size: 0.84rem;
  color: var(--text-dim);
}

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-title { font-size: 2.5rem; }
  .section-title { font-size: 1.85rem; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-list {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-card);
    flex-direction: column;
    padding: 100px 32px 32px;
    gap: 4px;
    transition: right var(--transition-normal);
    border-left: 1px solid var(--border-color);
    z-index: 1005;
  }

  .nav-list.active { right: 0; }

  .nav-link {
    display: block;
    padding: 14px 16px;
    font-size: 1.05rem;
    border-radius: 8px;
  }

  .hero-section { min-height: auto; padding: 120px 0 72px; }
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }

  .section-title { font-size: 1.6rem; }

  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .stat-number { font-size: 1.5rem; }

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

  .process-step { padding-left: 70px; }
  .step-number { width: 54px; height: 54px; font-size: 0.95rem; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.75rem; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .about-stats { grid-template-columns: 1fr; }
}