/* ============================================
   Denys Gudzenko — IT Services Digital Card
   Light mode, tech-forward, violet accents
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700;800&family=Montserrat:wght@300;400;500;600&display=swap');

/* ---------- Custom Properties ---------- */
:root {
  --bg-primary: #f8f9fc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f3f0ff;
  --text-primary: #1a1a2e;
  --text-secondary: #5a5a72;
  --text-muted: #8e8ea0;
  --accent: #7c3aed;
  --accent-dim: rgba(124, 58, 237, 0.1);
  --accent-glow: rgba(124, 58, 237, 0.25);
  --border: #e5e5ef;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Montserrat', sans-serif;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--text-primary);
}

/* ---------- Utility ---------- */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 18px 0;
  background: rgba(248, 249, 252, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), padding var(--transition);
}

.nav.scrolled {
  border-color: var(--border);
  padding: 12px 0;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.nav-brand span {
  color: var(--accent);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  position: relative;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(145deg, #f0ecf9 0%, #f8f9fc 40%, #f8f9fc 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* Animated code pattern */
.hero-bg::before {
  content: '{ } < / > fn() => { } const data = await fetch() async () => {} class App { } import { } from return <Component /> .map() .filter()';
  position: absolute;
  inset: 0;
  font-family: 'Courier New', monospace;
  font-size: 1rem;
  color: rgba(124, 58, 237, 0.06);
  word-break: break-all;
  line-height: 2.2;
  padding: 120px 40px;
  animation: scrollCode 40s linear infinite;
  white-space: pre-wrap;
}

@keyframes scrollCode {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-50%);
  }
}

/* Geometric accent shapes */
.hero-bg .geo-1,
.hero-bg .geo-2,
.hero-bg .geo-3 {
  position: absolute;
  border: 1px solid rgba(124, 58, 237, 0.15);
  border-radius: 4px;
  animation: float 8s ease-in-out infinite;
}

.hero-bg .geo-1 {
  width: 200px;
  height: 200px;
  top: 15%;
  right: 10%;
  transform: rotate(35deg);
}

.hero-bg .geo-2 {
  width: 120px;
  height: 120px;
  bottom: 20%;
  left: 8%;
  transform: rotate(-20deg);
  animation-delay: -3s;
  border-color: rgba(124, 58, 237, 0.1);
}

.hero-bg .geo-3 {
  width: 80px;
  height: 80px;
  top: 50%;
  right: 30%;
  transform: rotate(60deg);
  animation-delay: -5s;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0) rotate(35deg);
  }

  50% {
    transform: translateY(-20px) rotate(40deg);
  }
}

/* Radial glow */
.hero-bg .glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
  top: 20%;
  left: -10%;
  filter: blur(100px);
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero-content .section-label {
  margin-bottom: 20px;
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.hero-content h1 .highlight {
  background: linear-gradient(135deg, #7c3aed, #6d28d9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 36px;
}

/* CTA Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--accent);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 0 24px var(--accent-glow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--accent-glow);
  color: #ffffff;
}

.btn-primary svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition);
}

.btn-primary:hover svg {
  transform: translateX(4px);
}

/* ---------- Services ---------- */
.services {
  padding: 120px 0;
  background: var(--bg-secondary);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

.services-header {
  text-align: center;
  margin-bottom: 64px;
}

.services-header .section-subtitle {
  margin: 0 auto;
}

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

.service-card {
  padding: 40px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08), 0 0 20px var(--accent-dim);
}

.service-card .icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius);
  margin-bottom: 24px;
  color: var(--accent);
  transition: background var(--transition);
}

.service-card:hover .icon {
  background: rgba(168, 85, 247, 0.2);
}

.service-card .icon svg {
  width: 28px;
  height: 28px;
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.service-card .card-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.service-card:hover .card-line {
  transform: scaleX(1);
}

/* ---------- Partners ---------- */
.partners {
  padding: 100px 0;
  background: var(--bg-primary);
}

.partners-header {
  text-align: center;
  margin-bottom: 56px;
}

.partners-header .section-subtitle {
  margin: 0 auto;
}

.partners-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}

.partner-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  opacity: 0.5;
  filter: grayscale(0.4);
  transition: opacity var(--transition), filter var(--transition);
}

.partner-item:hover {
  opacity: 1;
  filter: grayscale(0);
}

.partner-item .logo-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-secondary);
  color: var(--accent);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.partner-item:hover .logo-icon {
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--accent-dim);
}

.partner-item .logo-icon svg {
  width: 36px;
  height: 36px;
}

.partner-item span {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* ---------- Contact ---------- */
.contact {
  padding: 120px 0;
  background: var(--bg-secondary);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 20px;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 400px;
}

.contact-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-details li {
  display: flex;
  align-items: center;
  gap: 14px;
}

.contact-details .detail-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 10px;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-details .detail-icon svg {
  width: 20px;
  height: 20px;
}

.contact-details .detail-text {
  display: flex;
  flex-direction: column;
}

.contact-details .detail-text small {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.contact-details .detail-text span {
  font-size: 0.95rem;
  color: var(--text-primary);
}

.contact-form {
  background: var(--bg-card);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

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

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.btn-submit {
  width: 100%;
  padding: 16px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #ffffff;
  background: var(--accent);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  box-shadow: 0 0 20px var(--accent-glow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px var(--accent-glow);
}

/* ---------- Footer ---------- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.footer-social a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.footer-social a svg {
  width: 18px;
  height: 18px;
}

/* ---------- Animations (Intersection Observer) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }
}

@media (max-width: 600px) {
  .hero-content h1 {
    font-size: 2rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .partners-logos {
    gap: 24px;
  }

  .footer .container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}