/* ═══════════════════════════════════════════════════════════
   SPACECENTERV2 — styles.css
   ИКЦ «Северная Корона» spacecenter.ru
   ═══════════════════════════════════════════════════════════ */

/* ── 1. DESIGN TOKENS ─────────────────────────────────────── */
:root {
  /* Colors */
  --color-bg-dark:            #08101E;
  --color-bg-light:           #EFF3F8;
  --color-surface-dark:       #0F1B2D;
  --color-surface-light:      #FAFCFF;
  --color-accent:             #D4590A;
  --color-accent-hover:       #E86915;
  --color-text-heading-dark:  #E8F0FA;
  --color-text-body-dark:     #A8B8CC;
  --color-text-heading-light: #0B1928;
  --color-text-body-light:    #2C3E52;
  --color-text-muted:         #6B7D94;
  --color-border-dark:        #1E2E42;
  --color-border-light:       #D2DBE8;

  /* Typography */
  --font-heading: 'Exo 2', 'Arial Narrow', Arial, sans-serif;
  --font-body:    'Golos Text', 'Segoe UI', Arial, sans-serif;

  /* Border radius */
  --radius-sm: 3px;
  --radius-md: 4px;
  --radius-lg: 6px;

  /* Shadows */
  --shadow-card:       0 1px 4px rgba(8,16,30,0.06), 0 4px 16px rgba(8,16,30,0.04);
  --shadow-card-hover: 0 2px 8px rgba(8,16,30,0.08);

  /* Transitions */
  --t-fast:   150ms ease;
  --t-base:   200ms ease;
  --t-slow:   300ms ease;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  /* Spacing */
  --sp-xs:  4px;
  --sp-sm:  8px;
  --sp-md:  16px;
  --sp-lg:  24px;
  --sp-xl:  32px;
  --sp-2xl: 48px;
  --sp-3xl: 64px;
  --sp-4xl: 96px;
  --sp-5xl: 128px;

  /* Layout */
  --container-max:   1280px;
  --section-pad:     clamp(4rem, 8vw, 7rem);
  --container-pad:   clamp(1rem, 4vw, 3rem);
}

/* ── 2. RESET & BASE ──────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-body-light);
  background-color: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

address {
  font-style: normal;
}

/* Focus ring (accessibility) */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* ── 3. TYPOGRAPHY UTILITIES ─────────────────────────────── */
.body-lg {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text-body-light);
  max-width: 72ch;
}

.body-lg--dark {
  color: var(--color-text-body-dark);
}

/* Kicker / section label */
.kicker {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.kicker::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--color-accent);
  margin-bottom: 8px;
}

.kicker--light {
  /* Same as .kicker — accent is orange on both light and dark */
}

/* Section headings */
.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text-heading-light);
  margin-bottom: var(--sp-xl);
}

.section-heading--dark {
  color: var(--color-text-heading-dark);
}

.section-header {
  margin-bottom: var(--sp-3xl);
}

/* Text link */
.text-link {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-top: var(--sp-md);
  transition: color var(--t-fast);
}

.text-link:hover {
  color: var(--color-accent-hover);
}

/* ── 4. LAYOUT ───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--section-pad);
}

.section--light {
  background-color: var(--color-bg-light);
}

.section--dark {
  background-color: var(--color-bg-dark);
}

/* ── 5. BUTTONS ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), transform 100ms ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

/* Primary */
.btn-primary {
  background: var(--color-accent);
  color: var(--color-surface-light);
  border: none;
  padding: 12px 28px;
}

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

/* Ghost — dark background */
.btn-ghost--dark {
  background: transparent;
  color: var(--color-text-heading-dark);
  border: 1px solid var(--color-border-dark);
  padding: 11px 27px;
}

.btn-ghost--dark:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Ghost — light background */
.btn-ghost--light {
  background: transparent;
  color: var(--color-text-heading-light);
  border: 1px solid var(--color-border-light);
  padding: 11px 27px;
}

.btn-ghost--light:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* CTA band inverted button */
.btn-cta-inverted {
  background: var(--color-surface-light);
  color: var(--color-text-heading-light);
  border: none;
  padding: 14px 36px;
  font-size: 1rem;
}

.btn-cta-inverted:hover {
  background: #fff;
}

/* Full-width variant */
.btn--full {
  width: 100%;
}

/* ── 6. HEADER / NAV ─────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  z-index: 100;
  transition: background var(--t-slow), box-shadow var(--t-slow), border-bottom-color var(--t-slow);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: var(--color-bg-dark);
  border-bottom-color: var(--color-border-dark);
  box-shadow: 0 2px 20px rgba(8,16,30,0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--sp-xl);
  height: 100%;
}

/* Logo */
.logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex-shrink: 0;
  text-decoration: none;
}

.logo-name {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text-heading-dark);
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.logo-sub {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

/* Main nav */
.main-nav {
  display: none;
  flex: 1;
  justify-content: center;
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
  }
}

.nav-list {
  display: flex;
  gap: var(--sp-2xl);
  align-items: center;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-body-dark);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-text-heading-dark);
  border-bottom-color: var(--color-accent);
}

/* Header actions */
.header-actions {
  display: none;
  align-items: center;
  gap: var(--sp-lg);
  margin-left: auto;
}

@media (min-width: 1024px) {
  .header-actions {
    display: flex;
  }
}

.header-phone {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-body-dark);
  white-space: nowrap;
  transition: color var(--t-fast);
}

.header-phone:hover {
  color: var(--color-text-heading-dark);
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
  cursor: pointer;
}

@media (min-width: 1024px) {
  .hamburger {
    display: none;
  }
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text-body-dark);
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-base);
}

.hamburger.is-open .hamburger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.hamburger.is-open .hamburger-line:nth-child(2) {
  opacity: 0;
}
.hamburger.is-open .hamburger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── 7. MOBILE NAV OVERLAY ──────────────────────────────── */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3xl);
  transform: translateX(100%);
  transition: transform 300ms var(--ease-out);
}

.mobile-nav.is-open {
  transform: translateX(0);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-xl);
  text-align: center;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  color: var(--color-text-heading-dark);
  transition: color var(--t-fast);
}

.mobile-nav-link:hover {
  color: var(--color-accent);
}

.mobile-phone {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-body-dark);
}

.mobile-cta {
  margin-top: var(--sp-sm);
}

/* ── 8. HERO ─────────────────────────────────────────────── */
.hero {
  position: relative;
  background-color: var(--color-bg-dark);
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}

@media (max-width: 639px) {
  .hero {
    min-height: 70vh;
  }
}

/* Engineering grid overlay */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(168, 184, 204, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168, 184, 204, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

/* Frequency arc SVG */
.hero-arcs {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding-block: clamp(4rem, 8vw, 7rem);
}

@media (max-width: 1023px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
}

/* Hero content */
.hero-content .kicker {
  margin-bottom: var(--sp-lg);
}

.hero-heading {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text-heading-dark);
  margin-bottom: var(--sp-xl);
}

.hero-lead {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text-body-dark);
  max-width: 52ch;
  margin-bottom: var(--sp-2xl);
}

.hero-cta-group {
  display: flex;
  gap: var(--sp-md);
  flex-wrap: wrap;
  margin-bottom: var(--sp-3xl);
}

/* Hero stats */
.hero-stats {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  padding-inline: var(--sp-xl);
}

.hero-stat:first-child {
  padding-left: 0;
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border-dark);
  align-self: center;
  flex-shrink: 0;
}

.hero-stat-num {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--color-text-heading-dark);
  line-height: 1;
}

.hero-stat-unit {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--color-accent);
  margin-top: 2px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-stat-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Hero visual */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 1023px) {
  .hero-visual {
    display: none;
  }
}

.hero-svg {
  width: 100%;
  max-width: 460px;
  height: auto;
}

/* ── 9. CAPABILITY PILLARS ───────────────────────────────── */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3xl) var(--sp-2xl);
}

@media (max-width: 1023px) {
  .pillars-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-3xl);
  }
}

@media (min-width: 640px) and (max-width: 1023px) {
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pillar-rule {
  width: 2rem;
  height: 1px;
  background: var(--color-accent);
  margin-bottom: var(--sp-md);
}

.pillar-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-heading-light);
  margin-bottom: var(--sp-md);
}

.pillar-desc {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-body-light);
  margin-bottom: var(--sp-lg);
}

.pillar-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.pillar-list li {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  padding-left: 12px;
  border-left: 1px solid var(--color-accent);
}

/* ── 10. METRICS BAND ──────────────────────────────────────── */
.metrics-band {
  background: var(--color-bg-dark);
  padding-block: clamp(3rem, 6vw, 5rem);
}

.metrics-grid {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-xl);
}

.metric {
  flex: 1;
  min-width: 180px;
  text-align: center;
  padding-inline: var(--sp-md);
}

.metric-divider {
  width: 1px;
  background: var(--color-border-dark);
  align-self: stretch;
  flex-shrink: 0;
}

@media (max-width: 639px) {
  .metric-divider {
    display: none;
  }
  .metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-2xl) var(--sp-sm);
  }
}

.metric-number {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  margin-bottom: var(--sp-sm);
}

.metric-value {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--color-text-heading-dark);
  line-height: 1;
}

.metric-unit {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 300;
  color: var(--color-accent);
  line-height: 1;
}

.metric-label {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ── 11. SOFTWARE FEATURE BLOCK ─────────────────────────── */
.software-block {
  overflow: hidden;
}

.software-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 1023px) {
  .software-inner {
    grid-template-columns: 1fr;
  }
}

/* Left — light */
.software-left {
  background: var(--color-bg-light);
  display: flex;
  align-items: center;
}

.software-left-content {
  padding: var(--section-pad) clamp(2rem, 5vw, 5rem);
  max-width: 600px;
}

.software-left-content .body-lg {
  margin-bottom: var(--sp-2xl);
}

.software-modules-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
  margin-bottom: var(--sp-2xl);
}

.software-module-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 12px;
  border-left: 1px solid var(--color-accent);
}

.software-module-item strong {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-heading-light);
}

.software-module-item span {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Right — dark module grid */
.software-right {
  background: var(--color-bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: 100%;
  height: 100%;
}

@media (max-width: 1023px) {
  .module-grid {
    grid-template-columns: repeat(3, 1fr);
    min-height: 0;
  }
}

@media (max-width: 639px) {
  .module-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.module-cell {
  padding: var(--sp-xl) var(--sp-lg);
  border-right: 1px solid var(--color-border-dark);
  border-bottom: 1px solid var(--color-border-dark);
  transition: background var(--t-base), border-left-color var(--t-base);
  border-left: 2px solid transparent;
  cursor: default;
}

.module-cell:hover {
  background: var(--color-surface-dark);
  border-left-color: var(--color-accent);
}

/* Remove right border on last in each row */
.module-cell:nth-child(3n) {
  border-right: none;
}

/* Remove bottom border on last row */
.module-cell:nth-child(7),
.module-cell:nth-child(8),
.module-cell:nth-child(9) {
  border-bottom: none;
}

.module-name {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-heading-dark);
  line-height: 1.3;
  margin-bottom: var(--sp-xs);
}

.module-desc {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ── 12. PROJECTS ──────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-lg);
}

@media (max-width: 639px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

.project-card {
  background: var(--color-surface-light);
  border: 1px solid var(--color-border-light);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--t-base), border-color var(--t-base);
}

.project-card:hover {
  box-shadow: var(--shadow-card-hover);
}

.project-meta {
  display: flex;
  gap: var(--sp-sm);
  flex-wrap: wrap;
  margin-bottom: var(--sp-md);
}

.tag {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  letter-spacing: 0.02em;
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-heading-light);
  margin-bottom: var(--sp-md);
}

.project-desc {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text-body-light);
}

/* ── 13. CLIENTS BAND ────────────────────────────────────── */
.clients-band {
  background: var(--color-bg-dark);
  padding-block: clamp(3rem, 6vw, 5rem);
}

.clients-label {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: var(--sp-2xl);
}

.clients-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  flex-wrap: wrap;
}

.client-logo {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-text-heading-dark);
  opacity: 0.45;
  text-transform: uppercase;
  transition: opacity var(--t-base);
  cursor: default;
  padding: var(--sp-sm) var(--sp-md);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.client-logo:hover {
  opacity: 0.75;
}

/* ── 14. TRAINING ──────────────────────────────────────────── */
.training-inner {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

@media (max-width: 1023px) {
  .training-inner {
    grid-template-columns: 1fr;
  }
}

.training-content .kicker {
  margin-bottom: var(--sp-md);
}

.training-content .body-lg {
  margin-bottom: var(--sp-2xl);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text-body-light);
}

.feature-accent {
  flex-shrink: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  margin-top: 7px;
}

/* Event card */
.event-card {
  background: var(--color-bg-dark);
  border: 1px solid var(--color-border-dark);
  border-top: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: var(--sp-2xl);
  box-shadow: 0 4px 20px rgba(8,16,30,0.15);
}

.event-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-md);
}

.event-date {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text-heading-dark);
  margin-bottom: var(--sp-xl);
}

.event-details {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
  margin-bottom: var(--sp-2xl);
  padding-top: var(--sp-xl);
  border-top: 1px solid var(--color-border-dark);
}

.event-detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.event-detail-label {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.event-detail-value {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--color-text-body-dark);
}

/* ── 15. CTA BAND ──────────────────────────────────────────── */
.cta-band {
  background: var(--color-accent);
  padding-block: clamp(4rem, 8vw, 6rem);
}

.cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
}

.cta-heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-bg-dark);
  margin-bottom: var(--sp-lg);
}

.cta-body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-bg-dark);
  opacity: 0.8;
  margin-bottom: var(--sp-2xl);
}

/* ── 16. CONTACTS ──────────────────────────────────────────── */
.contacts {
  background: var(--color-bg-dark);
}

.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

@media (max-width: 1023px) {
  .contacts-grid {
    grid-template-columns: 1fr;
  }
}

.contacts-info {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2xl);
}

.contact-block-title {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--sp-sm);
}

.contact-block-value {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-body-dark);
  line-height: 1.6;
}

.contact-link {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-heading-dark);
  transition: color var(--t-fast);
}

.contact-link:hover {
  color: var(--color-accent);
}

/* Form */
.form {
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: var(--sp-2xl);
}

.form-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-heading-dark);
  margin-bottom: var(--sp-xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-md);
}

@media (max-width: 639px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--sp-md);
}

.form-label {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-body-dark);
}

.form-input {
  background: var(--color-bg-dark);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-heading-dark);
  width: 100%;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  outline: none;
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(212, 89, 10, 0.12);
}

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

/* ── 17. FOOTER ───────────────────────────────────────────── */
.site-footer {
  background: var(--color-bg-dark);
  border-top: 1px solid var(--color-border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-3xl) var(--sp-2xl);
  padding-block: clamp(3rem, 6vw, 5rem);
}

@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-2xl);
  }
}

@media (max-width: 639px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-2xl);
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--sp-lg);
}

.footer-logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-logo-name {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text-heading-dark);
  letter-spacing: 0.01em;
}

.footer-logo-domain {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.footer-tagline {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-body-dark);
  line-height: 1.6;
  max-width: 28ch;
}

.footer-legal {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.footer-col-title {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--sp-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

.footer-link {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-body-dark);
  transition: color var(--t-fast);
}

.footer-link:hover {
  color: var(--color-text-heading-dark);
}

.footer-address {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

.footer-address p {
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-body-dark);
}

/* Footer bottom bar */
.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-block: var(--sp-lg);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-md);
}

.footer-copyright {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: var(--sp-xl);
}

.footer-https {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.footer-link--sm {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer-link--sm:hover {
  color: var(--color-text-body-dark);
}

/* ── 18. SCROLL ANIMATIONS ───────────────────────────────── */
[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-delay="1"] { transition-delay: 60ms; }
[data-delay="2"] { transition-delay: 120ms; }
[data-delay="3"] { transition-delay: 180ms; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }

  .mobile-nav {
    transition: none;
  }
}

/* ── 19. REVISIONS & IMPROVEMENTS ────────────────────────── */

/* Hero orbital animation */
@keyframes orbital-rotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.hero-svg ellipse:nth-child(1) { animation: orbital-rotate 60s linear infinite; transform-origin: 230px 280px; }
.hero-svg ellipse:nth-child(2) { animation: orbital-rotate 45s linear reverse infinite; transform-origin: 230px 280px; }
.hero-svg ellipse:nth-child(3) { animation: orbital-rotate 30s linear infinite; transform-origin: 230px 280px; }

/* Subtle pulse for antenna point */
@keyframes signal-pulse {
  0% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.2); }
  100% { opacity: 0.4; transform: scale(1); }
}
.hero-svg circle {
  animation: signal-pulse 2s ease-in-out infinite;
  transform-origin: 230px 107px;
}

/* Module Category Labels */
.module-group-label {
  grid-column: span 3;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--color-border-dark);
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
}

@media (max-width: 1023px) {
  .module-group-label {
    grid-column: span 3;
  }
}
@media (max-width: 639px) {
  .module-group-label {
    grid-column: span 2;
  }
}

/* Improved Client Logos (Simulated SVG look) */
.client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(15, 27, 45, 0.4);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-heading-dark);
  opacity: 0.6;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--t-base);
}

.client-logo:hover {
  opacity: 1;
  background: rgba(15, 27, 45, 0.8);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

/* Topomap Background Pattern for light sections */
.section--light {
  background-image: 
    linear-gradient(rgba(107, 125, 148, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(107, 125, 148, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* CTA Band Hover */
.btn-cta-inverted:hover {
  background: #fff;
  box-shadow: 0 4px 12px rgba(212, 89, 10, 0.3);
}

.client-logo-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}