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

:root {
  --bg: #06080f;
  --bg-card: rgba(12, 18, 32, 0.7);
  --bg-card-hover: rgba(18, 28, 50, 0.85);
  --border: rgba(99, 140, 255, 0.12);
  --border-hover: rgba(99, 140, 255, 0.35);
  --text: #e8ecf4;
  --text-muted: #8892a8;
  --primary: #4f8cff;
  --primary-light: #7eb0ff;
  --accent: #00d4aa;
  --accent2: #a855f7;
  --gradient: linear-gradient(135deg, #4f8cff 0%, #00d4aa 50%, #a855f7 100%);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

body.tg-app {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

body.tg-app .header {
  top: env(safe-area-inset-top, 0);
}

body.tg-app .hero__scroll {
  display: none;
}

.noise {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Header ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(6, 8, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.logo__icon {
  color: var(--primary);
  font-size: 1.4rem;
  animation: spin-slow 8s linear infinite;
}

.logo__text span {
  color: var(--primary);
}

@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

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

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

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(12, 18, 32, 0.65);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  min-width: 38px;
  padding: 6px 10px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  border-radius: 7px;
  transition: var(--transition);
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn.active {
  background: rgba(79, 140, 255, 0.18);
  color: var(--primary-light);
  box-shadow: 0 0 12px rgba(79, 140, 255, 0.15);
}

.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(--text);
  transition: var(--transition);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(79, 140, 255, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(79, 140, 255, 0.45);
}

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

.btn--ghost:hover {
  border-color: var(--border-hover);
  background: rgba(79, 140, 255, 0.06);
}

.btn--sm { padding: 8px 20px; font-size: 0.85rem; }
.btn--lg { padding: 16px 36px; font-size: 1rem; }
.btn--block { width: 100%; }

.btn__loader {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.btn.loading .btn__text { display: none; }
.btn.loading .btn__loader { display: block; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Hero ── */
.hero {
  position: relative;
  min-height: auto;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  overflow: hidden;
}

#canvas3d {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(79, 140, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 20%, rgba(168, 85, 247, 0.06) 0%, transparent 50%),
    linear-gradient(to bottom, transparent 60%, var(--bg) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: 140px 24px 0;
  max-width: 720px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(79, 140, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--primary-light);
  margin-bottom: 28px;
  font-family: var(--mono);
}

.pulse {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 212, 170, 0.5); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(0, 212, 170, 0); }
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero__desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 640px;
  margin-bottom: 8px;
}

.stat-card {
  position: relative;
  padding: 24px 20px;
  background: rgba(12, 18, 32, 0.55);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  transition: var(--transition);
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0.6;
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(79, 140, 255, 0.12);
}

.stat-card__icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(79, 140, 255, 0.1);
  border-radius: 10px;
  color: var(--primary);
  margin-bottom: 16px;
}

.stat-card__icon svg {
  width: 18px;
  height: 18px;
}

.stat-card__value {
  display: flex;
  align-items: baseline;
  margin-bottom: 6px;
}

.stat__num {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--mono);
  line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card__label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
  font-weight: 500;
}

.hero__scroll {
  position: relative;
  align-self: center;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  padding-bottom: 12px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  pointer-events: none;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  animation: scroll-anim 2s ease infinite;
}

@keyframes scroll-anim {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ── Sections ── */
.section {
  padding: 80px 0;
  position: relative;
}

.services.section {
  padding-top: 48px;
}

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

.section__tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.section__title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section__desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
}

/* ── Services ── */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: var(--transition);
}

.service-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

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

.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(79, 140, 255, 0.1);
  border-radius: 12px;
  margin-bottom: 20px;
  color: var(--primary);
}

.service-card__icon svg {
  width: 24px;
  height: 24px;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ── Portfolio ── */
.portfolio {
  background: linear-gradient(180deg, transparent, rgba(79, 140, 255, 0.02), transparent);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.portfolio-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.portfolio-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.portfolio-card__visual {
  height: 200px;
  position: relative;
  overflow: hidden;
}

.portfolio-card__visual--1 {
  background: linear-gradient(135deg, #1a1f3a 0%, #2d1b69 50%, #1a3a4a 100%);
}
.portfolio-card__visual--2 {
  background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
}
.portfolio-card__visual--3 {
  background: linear-gradient(135deg, #141e30 0%, #243b55 50%, #1a2a3a 100%);
}
.portfolio-card__visual--4 {
  background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
}
.portfolio-card__visual--5 {
  background: linear-gradient(135deg, #0a1628 0%, #1a3a5c 50%, #0d2847 100%);
}
.portfolio-card__visual--6 {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.portfolio-card__visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 19px, rgba(79, 140, 255, 0.03) 19px, rgba(79, 140, 255, 0.03) 20px),
    repeating-linear-gradient(90deg, transparent, transparent 19px, rgba(79, 140, 255, 0.03) 19px, rgba(79, 140, 255, 0.03) 20px);
}

.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 16px;
}

.portfolio-card__tag {
  padding: 6px 14px;
  background: rgba(6, 8, 15, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.75rem;
  font-family: var(--mono);
  color: var(--primary-light);
}

.portfolio-card__body {
  padding: 24px;
}

.portfolio-card__body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.portfolio-card__body p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.portfolio-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.portfolio-card__tech span {
  padding: 4px 12px;
  background: rgba(79, 140, 255, 0.08);
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: var(--mono);
  color: var(--primary-light);
}

/* ── Contact ── */
.contact__wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact__details {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact__item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact__item-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(79, 140, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 1.2rem;
}

.contact__item-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact__item-value {
  font-weight: 600;
  font-size: 0.95rem;
}

.contact__form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  backdrop-filter: blur(10px);
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(6, 8, 15, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(136, 146, 168, 0.5);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238892a8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

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

.form-status {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(0, 212, 170, 0.1);
  border: 1px solid rgba(0, 212, 170, 0.3);
  color: var(--accent);
}

.form-status.error {
  display: block;
  background: rgba(255, 80, 80, 0.1);
  border: 1px solid rgba(255, 80, 80, 0.3);
  color: #ff6b6b;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer__brand p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 8px;
  max-width: 280px;
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer__copy {
  width: 100%;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}

/* ── Animations on scroll ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ── Responsive ── */
@media (max-width: 900px) {
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(6, 8, 15, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 80px 32px 32px;
    border-left: 1px solid var(--border);
    transition: var(--transition);
  }

  .nav.open { right: 0; }

  .burger { display: flex; }
  .header__cta { display: none; }
  .header__actions { margin-left: 0; }

  .contact__wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__stats {
    grid-template-columns: 1fr;
    max-width: 320px;
  }
}

@media (max-width: 600px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .form-row { grid-template-columns: 1fr; }
  .portfolio__grid { grid-template-columns: 1fr; }
  .contact__form { padding: 24px; }
}