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

:root {
  --bg-main: #020617;
  --bg-alt: #020922;
  --bg-elevated: rgba(15,23,42,0.9);
  --border-subtle: rgba(148,163,184,0.25);
  --border-strong: rgba(129,140,248,0.55);
  --text-main: #e5e7eb;
  --text-soft: #9ca3af;
  --accent: #38bdf8;
  --accent-soft: rgba(56,189,248,0.18);
  --accent-strong: #6366f1;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-pill: 999px;
}

/* Global background with couple photo — Variant B */
html, body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-main);
  line-height: 1.6;
}

body {
  position: relative;
  background: radial-gradient(circle at top, #020617 0%, #020617 45%, #000 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(2,6,23,0.75), rgba(2,6,23,0.32), rgba(15,23,42,0.85)),
    url("images/20251118_1723_Калістеніка в спортзалі_simple_compose_01kabrx2t8e4bbn1n15n15nq4a (2).png") center center / cover no-repeat;
  opacity: 0.55; /* medium visibility */
  mix-blend-mode: screen;
  pointer-events: none;
  z-index: -2;
}

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

.shell {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 20;
  background: linear-gradient(to bottom, rgba(15,23,42,0.96), rgba(15,23,42,0.6), transparent);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo-mark {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  letter-spacing: 0.06em;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.logo-mark .dot {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #a5b4fc, #38bdf8, #0ea5e9 80%);
  box-shadow: 0 0 24px rgba(56,189,248,0.7);
}

/* Navigation */

.nav {
  display: flex;
  gap: 18px;
  font-size: 1rem;
  align-items: center;
}

.nav-link {
  color: var(--text-main);
  text-decoration: none;
  opacity: 0.8;
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  transition: background 0.18s ease, opacity 0.18s ease, color 0.18s ease;
}

.nav-link:hover {
  opacity: 1;
  background: rgba(15,23,42,0.9);
}

.nav-cta {
  border: 1px solid rgba(148,163,184,0.6);
}

/* Mobile nav toggle */

.nav-toggle {
  display: none;
  width: 34px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.6);
  background: rgba(15,23,42,0.8);
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0 8px;
}

.nav-toggle span {
  display: block;
  width: 14px;
  height: 2px;
  border-radius: 999px;
  background: #e5e7eb;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.nav-toggle.nav-open span:nth-child(1) {
  transform: translateY(2px) rotate(45deg);
}

.nav-toggle.nav-open span:nth-child(2) {
  transform: translateY(-2px) rotate(-45deg);
}

/* Hero */

.hero {
  position: relative;
  min-height: 100vh;
  padding-top: 90px;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(56,189,248,0.3), transparent 60%),
    radial-gradient(circle at bottom right, rgba(79,70,229,0.55), transparent 65%);
  opacity: 0.4;
  z-index: -1;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 40px;
  align-items: stretch;
  padding-top: 30px;
  padding-bottom: 80px;
}

.hero-main {
  max-width: 640px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: rgba(15,23,42,0.82);
  border: 1px solid rgba(148,163,184,0.35);
  color: #cbd5f5;
}

.hero h1 {
  margin: 18px 0 12px;
  font-size: clamp(2.35rem, 4vw, 3.3rem);
}

.hero-sub {
  margin: 0 0 22px;
  color: var(--text-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease,
              transform 0.1s ease, box-shadow 0.18s ease;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  color: white;
  box-shadow: 0 18px 45px rgba(37,99,235,0.38);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 55px rgba(37,99,235,0.6);
}

.btn.ghost {
  border-color: rgba(148,163,184,0.5);
  color: var(--text-main);
  background: rgba(15,23,42,0.7);
}

.btn.ghost:hover {
  background: rgba(15,23,42,0.95);
}

.btn.full {
  width: 100%;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  margin-top: 10px;
}

.hero-metrics div {
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.25);
}

.hero-metrics dt {
  margin: 0;
  font-weight: 600;
  font-size: 1.05rem;
}

.hero-metrics dd {
  margin: 2px 0 0;
  font-size: 0.85rem;
  color: var(--text-soft);
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--text-soft);
}

.hero-trust span {
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px dashed rgba(148,163,184,0.6);
  background: rgba(15,23,42,0.7);
}

.hero-trust .trust-label {
  border-style: solid;
  background: transparent;
  color: #c7d2fe;
}

/* Glass cards */

.glass {
  background: radial-gradient(circle at top left, rgba(56,189,248,0.18), transparent 55%),
              rgba(15,23,42,0.92);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148,163,184,0.35);
  box-shadow: 0 24px 60px rgba(15,23,42,0.9);
  backdrop-filter: blur(18px);
}

.hero-aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card-large {
  padding: 18px 18px 20px;
}

.card-small {
  padding: 16px 16px 18px;
}

.hero-aside .tag {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #a5b4fc;
  margin: 0 0 6px;
}

.hero-aside h2 {
  margin: 0 0 8px;
  font-size: 1.3rem;
}

.hero-aside .small {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--text-soft);
}

.case-thumbs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 10px;
}

.case-thumbs img {
  border-radius: 18px;
  border: 1px solid rgba(148,163,184,0.4);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0;
  margin: 2px 0 0;
  list-style: none;
  font-size: 0.85rem;
}

.pill-row li,
.pill-row span {
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.4);
}

.card-small .label {
  font-size: 0.8rem;
  color: var(--text-soft);
  margin: 0 0 6px;
}

.card-small ul {
  margin: 0;
  padding-left: 18px;
  font-size: 0.85rem;
  color: var(--text-main);
}

/* Scroll indicator */

.hero-scroll {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  color: var(--text-soft);
}

.hero-scroll .line {
  width: 52px;
  height: 1px;
  background: linear-gradient(to right, var(--accent), transparent);
}

/* Sections */

.section {
  padding: 80px 0;
  background: radial-gradient(circle at top, rgba(2,6,23,0.2) 0%, #020617 50%, #000 100%);
}

.section.alt {
  background: radial-gradient(circle at top, rgba(2,8,23,0.4) 0%, #020922 50%, #000 100%);
}

.section-split {
  padding-top: 40px;
}

.section-header {
  max-width: 640px;
  margin-bottom: 28px;
}

.section-header.inline {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 22px;
}

.section h2 {
  margin: 0 0 8px;
  font-size: 1.9rem;
}

.section-header p {
  margin: 0;
  color: var(--text-soft);
}

/* hide broken pill in services header */
.stack-chip {
  display: none;
}

/* Grids & cards */

.grid {
  display: grid;
  gap: 18px;
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cards .card {
  background: linear-gradient(145deg, rgba(15,23,42,0.92), rgba(15,23,42,0.98));
  border-radius: var(--radius-md);
  border: 1px solid rgba(148,163,184,0.26);
  padding: 18px 18px 20px;
  position: relative;
  overflow: hidden;
  line-height: 1.55;
}

.cards .card::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at top left, rgba(56,189,248,0.12), transparent 60%);
  opacity: 0;
  transition: opacity 0.18s ease;
}

.cards .card:hover::after {
  opacity: 1;
}

.cards .card h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
}

.cards .card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-soft);
}

/* Domain icons */

.icon-dot {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 8px;
  background: radial-gradient(circle at 30% 20%, #e0f2fe, #38bdf8, #0f172a 85%);
  color: #020617;
}

/* Services */

.service-columns .service-card {
  padding: 20px 20px 22px;
  line-height: 1.6;
}

.service-columns h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1.02rem;
}

.service-columns ul {
  margin: 0;
  padding-left: 18px;
  font-size: 0.9rem;
  color: var(--text-main);
}

.service-columns ul li {
  margin-bottom: 6px;
}

/* Tech */

.tech-grid .tech-column {
  padding: 20px 20px 22px;
  line-height: 1.6;
}

.tech-grid .tech-column h3 {
  margin-top: 0;
  margin-bottom: 6px;
  font-size: 1rem;
}

.tech-grid .tech-column ul {
  margin: 0;
  padding-left: 16px;
  font-size: 0.9rem;
  color: var(--text-main);
}

.tech-grid .tech-column ul li {
  margin-bottom: 4px;
}

/* Cases */

.case-main {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 24px;
  padding: 20px 20px 22px;
  margin-bottom: 26px;
}

.case-tag {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #a5b4fc;
  margin: 0 0 6px;
}

.case-main h3 {
  margin: 0 0 10px;
  font-size: 1.3rem;
}

.case-main p {
  margin-top: 0;
  margin-bottom: 10px;
  color: var(--text-soft);
}

.case-main ul {
  margin: 0 0 10px;
  padding-left: 18px;
  font-size: 0.9rem;
}

.case-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

.phone-frame {
  flex: 1;
  max-width: 210px;
  border-radius: 32px;
  padding: 10px;
  background: radial-gradient(circle at top, rgba(15,23,42,0.4), rgba(15,23,42,0.95));
  border: 1px solid rgba(148,163,184,0.55);
  box-shadow: 0 20px 40px rgba(15,23,42,0.9);
}

.phone-frame.secondary {
  transform: translateY(14px);
  opacity: 0.95;
}

.phone-frame img {
  border-radius: 22px;
}

.secondary-cases .card ul {
  margin-top: 10px;
  padding-left: 18px;
  font-size: 0.9rem;
  color: var(--text-main);
}

/* Contact */

.contact-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 26px;
  align-items: flex-start;
}

.contact-copy h2 {
  margin-top: 0;
  margin-bottom: 10px;
}

.contact-copy p {
  margin-top: 0;
  color: var(--text-soft);
}

.contact-meta p {
  margin: 4px 0;
  color: var(--text-main);
}

.contact-form {
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(15,23,42,0.98), rgba(15,23,42,0.9));
  border: 1px solid rgba(148,163,184,0.5);
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-row.two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.contact-form label {
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  border-radius: 12px;
  border: 1px solid rgba(148,163,184,0.45);
  background: rgba(15,23,42,0.9);
  color: var(--text-main);
  padding: 8px 10px;
  font: inherit;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(56,189,248,0.4);
}

.form-note {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-soft);
}

.form-success {
  margin: 4px 0 0;
  font-size: 0.8rem;
  color: #4ade80;
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(31,41,55,0.9);
  background: #020617;
  padding: 18px 0 22px;
  font-size: 0.8rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--text-soft);
}

.footer-inner a {
  color: var(--accent);
  text-decoration: none;
}

/* Responsive */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.1fr);
  }
  .hero-aside {
    max-width: 420px;
    margin-top: 10px;
  }
  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid.three {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .case-main {
    grid-template-columns: minmax(0, 1fr);
  }
  .contact-shell {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .nav {
    position: absolute;
    top: 56px;
    right: 20px;
    padding: 10px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    background: rgba(15,23,42,0.98);
    border-radius: 16px;
    border: 1px solid rgba(148,163,184,0.4);
    display: none;
  }
  .nav.nav-open {
    display: flex;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .hero-inner {
    padding-top: 24px;
  }
  .hero-metrics {
    grid-template-columns: minmax(0, 1fr);
  }
  .grid.four,
  .grid.three,
  .grid.two {
    grid-template-columns: minmax(0, 1fr);
  }
  .form-row.two {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero-scroll {
    display: none;
  }
}

.logo-img { height:32px; display:block; }