/* ==========================================================================
   ALTAIR STUDIO — Design System & Stylesheet
   Warm light background (#F7F7F2), Graphite text (#171917), Cyan accent (#00E5FF)
   Editorial typography, responsive grid, zero horizontal overflow
   ========================================================================== */

@font-face {
  font-family: 'Onest';
  src: url('assets/fonts/onest-latin.woff2') format('woff2');
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Onest';
  src: url('assets/fonts/onest-cyrillic.woff2') format('woff2');
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: 'Onest';
  src: url('assets/fonts/onest-cyrillic-ext.woff2') format('woff2');
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0460-052F, U+1C80-1C88, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}

@font-face {
  font-family: 'Unbounded';
  src: url('assets/fonts/unbounded-latin.woff2') format('woff2');
  font-weight: 600 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Unbounded';
  src: url('assets/fonts/unbounded-cyrillic.woff2') format('woff2');
  font-weight: 600 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

:root {
  /* Dark Tech Studio Design System */
  --bg-main: #111311;
  --text-main: #F7F7F2;
  --text-secondary: #A2A69E;
  --text-muted: #6C7068;
  --border-main: rgba(255, 255, 255, 0.1);
  --border-light: rgba(255, 255, 255, 0.06);
  
  --card-bg: #181B18;
  --surface-warm: #1F221F;
  --surface-subtle: #141714;

  /* Accent: Electric Cyan */
  --accent-cyan: #00E5FF;
  --accent-cyan-hover: #33EBFF;
  --cyan-text-dark: #101210;

  /* Dark Theme for Contact & Footer */
  --dark-bg: #0C0E0C;
  --dark-surface: #141714;
  --dark-border: rgba(255, 255, 255, 0.08);
  --dark-text: #F7F7F2;
  --dark-text-secondary: #A2A69E;
  --dark-text-muted: #6C7068;

  /* Typography */
  --font-heading: 'Unbounded', -apple-system, sans-serif;
  --font-body: 'Onest', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing & Sizes */
  --container-width: 1200px;
  --header-height: 72px;
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-main);
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Typography Defaults */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.18;
}

p {
  color: var(--text-secondary);
}

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

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

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

/* Anchor offset for sticky header */
section[id] {
  scroll-margin-top: 5.5rem;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--text-main);
  color: var(--bg-main);
  padding: 10px 18px;
  z-index: 1000;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 16px;
}

/* Layout Container */
.container {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Badges & Chips */
.badge-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border-radius: var(--radius-xs);
  background-color: var(--surface-warm);
  color: var(--text-main);
  border: 1px solid var(--border-main);
  line-height: 1.3;
}

.badge-chip.is-cyan {
  background-color: var(--accent-cyan);
  color: var(--cyan-text-dark);
  border: 1px solid var(--accent-cyan);
  font-weight: 800;
}

.badge-chip.is-dark {
  background-color: #202420;
  color: var(--dark-text);
  border-color: #313631;
}

/* Section Header Structure */
.section-header {
  margin-bottom: 40px;
}

.section-eyebrow {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 16px;
}

.section-desc {
  font-size: clamp(17px, 2vw, 19px);
  max-width: 720px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 14px 28px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
  min-height: 48px;
}

.btn-primary {
  background-color: var(--text-main);
  color: var(--bg-main);
  border: 1px solid var(--text-main);
}
.btn-primary:hover {
  background-color: #FFFFFF;
  color: #0E100E;
  border-color: #FFFFFF;
  box-shadow: 0 4px 18px rgba(255, 255, 255, 0.15);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-main);
}
.btn-secondary:hover {
  background-color: var(--surface-warm);
  border-color: var(--text-main);
}

.btn-cyan {
  background-color: var(--accent-cyan);
  color: var(--cyan-text-dark);
  border: 1px solid var(--accent-cyan);
}
.btn-cyan:hover {
  background-color: var(--accent-cyan-hover);
  border-color: var(--accent-cyan-hover);
}

.btn-dark {
  background-color: #F7F7F2;
  color: #141614;
  border: 1px solid #F7F7F2;
}
.btn-dark:hover {
  background-color: #E2E2DC;
  border-color: #E2E2DC;
}

.btn-dark-outline {
  background-color: transparent;
  color: #F7F7F2;
  border: 1px solid #333833;
}
.btn-dark-outline:hover {
  background-color: #222622;
  border-color: #4A504A;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(17, 19, 17, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-header.is-scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #FFFFFF;
  text-decoration: none;
}

.logo-link svg {
  height: 34px;
  width: auto;
  display: block;
}

@media (max-width: 640px) {
  .logo-link svg {
    height: 28px;
  }
}

/* Nav Menu */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-item a {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  padding: 8px 0;
  position: relative;
}

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

.nav-item a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--text-main);
  transition: width var(--transition-fast);
}
.nav-item a:hover::after {
  width: 100%;
}

.header-cta {
  padding: 10px 20px;
  font-size: 14px;
  min-height: 40px;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  background: var(--surface-warm);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-xs);
  cursor: pointer;
}

.mobile-toggle svg {
  width: 22px;
  height: 22px;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  inset: var(--header-height) 0 0 0;
  background-color: rgba(23, 25, 23, 0.4);
  backdrop-filter: blur(4px);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.mobile-drawer.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-drawer-content {
  background-color: var(--bg-main);
  border-bottom: 1px solid var(--border-main);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transform: translateY(-16px);
  transition: transform var(--transition-normal);
  box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.mobile-drawer.is-open .mobile-drawer-content {
  transform: translateY(0);
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 700;
  color: var(--text-main);
  display: block;
  padding: 8px 0;
}

.mobile-nav-cta {
  width: 100%;
}

/* ==========================================================================
   HERO SECTION (Упрощённый, чёткий первый экран)
   ========================================================================== */
.hero-section {
  padding-top: clamp(40px, 6vw, 76px);
  padding-bottom: clamp(48px, 6vw, 84px);
  border-bottom: 1px solid var(--border-main);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 1fr;
  gap: clamp(32px, 4vw, 56px);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-badge-wrap {
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--text-main);
}

.hero-desc {
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.55;
  color: var(--text-secondary);
  margin-bottom: 28px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.hero-terms {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.45;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

.hero-terms-icon {
  flex-shrink: 0;
  color: var(--text-main);
  margin-top: 2px;
}

/* Hero Visual: Browser Window Showcase with Prominent Work Label */
.hero-showcase {
  position: relative;
  display: flex;
  flex-direction: column;
}

.browser-mockup {
  background: #181B18;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

.browser-mockup-header {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: #141714;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 10px 16px;
}

.browser-dots {
  display: flex;
  gap: 6px;
}
.browser-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
}

.browser-address-bar {
  flex: 1;
  background-color: #1E221E;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xs);
  padding: 4px 12px;
  font-size: 12px;
  font-family: monospace;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.browser-address-bar strong {
  color: var(--text-main);
  font-weight: 600;
}

.browser-body {
  position: relative;
  background-color: #0E100E;
}

.browser-body img {
  width: 100%;
  height: auto;
  display: block;
}

.browser-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background-color: var(--surface-subtle);
  border-top: 1px solid var(--border-main);
  font-size: 13.5px;
  color: var(--text-secondary);
}

.browser-caption strong {
  color: var(--text-main);
}

/* Prominent label next to / below the image */
.hero-work-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 700;
  background-color: #181B18;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 3px solid var(--accent-cyan);
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  color: #F7F7F2;
  margin-top: 12px;
  align-self: flex-start;
}

.hero-work-tag svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
}

/* ==========================================================================
   MAIN CASE STUDY (VO DVORE)
   ========================================================================== */
.case-section {
  padding-top: clamp(60px, 8vw, 96px);
  padding-bottom: clamp(60px, 8vw, 96px);
  border-bottom: 1px solid var(--border-main);
}

.case-card {
  background: var(--card-bg);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 48px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}

.case-facts-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
  margin-bottom: 36px;
}

.case-fact-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 6px 14px;
  font-size: 13.5px;
  font-weight: 600;
  color: #D6D8D2;
  border-radius: var(--radius-xs);
}

.case-fact-item svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
}

/* Interactive Tabs for Case Study */
.case-tabs-nav {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-main);
  margin-bottom: 28px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.case-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.case-tab-btn:hover {
  color: var(--text-main);
}

.case-tab-btn.is-active {
  color: #FFFFFF;
  border-bottom-color: var(--accent-cyan);
}

.case-tab-btn .tab-num {
  font-size: 11px;
  font-weight: 800;
  padding: 2px 6px;
  background-color: rgba(255, 255, 255, 0.06);
  border-radius: 2px;
}

.case-tab-btn.is-active .tab-num {
  background-color: var(--accent-cyan);
  color: var(--cyan-text-dark);
}

.case-tab-panel {
  display: none;
}

.case-tab-panel.is-active {
  display: block;
}

.case-view-layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 32px;
  align-items: start;
}

.case-image-frame {
  background: #0D0F0D;
  border: 1px solid var(--border-main);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.case-image-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.case-flow-details {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.case-flow-details h3 {
  font-size: 22px;
  line-height: 1.3;
}

.case-flow-desc {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Prepared WhatsApp Message Box */
.wa-preview-box {
  background-color: #141714;
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-left: 4px solid #25D366;
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: monospace;
  font-size: 13px;
  line-height: 1.5;
  color: #D6D8D2;
  white-space: pre-wrap;
}

.wa-clarification-note {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.45;
  margin-top: 4px;
}

.case-external-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border-light);
}

/* ==========================================================================
   CAPABILITIES (ВОЗМОЖНОСТИ) — Horizontal Editorial Rows
   ========================================================================== */
.capabilities-section {
  padding-top: clamp(60px, 8vw, 96px);
  padding-bottom: clamp(60px, 8vw, 96px);
  border-bottom: 1px solid var(--border-main);
}

.capabilities-list {
  border-top: 1px solid var(--border-main);
  margin-top: 32px;
}

.capability-row {
  display: grid;
  grid-template-columns: 80px 1.4fr 2fr;
  align-items: baseline;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border-main);
}

.capability-num {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 800;
  color: var(--text-muted);
}

.capability-title {
  font-size: 22px;
  color: var(--text-main);
}

.capability-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.capabilities-disclaimer {
  margin-top: 24px;
  font-size: 13.5px;
  color: var(--text-muted);
}

/* ==========================================================================
   SERVICES (УСЛУГИ И СТОИМОСТЬ С ПЕРЕКЛЮЧАТЕЛЕМ САЙТЫ / TELEGRAM-БОТЫ)
   ========================================================================== */
.services-section {
  padding-top: clamp(60px, 8vw, 96px);
  padding-bottom: clamp(60px, 8vw, 96px);
  border-bottom: 1px solid var(--border-main);
}

.services-switcher-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: clamp(28px, 4vw, 38px);
}

.services-switcher {
  display: inline-flex;
  background: #151815;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 4px;
  border-radius: 999px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.services-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 24px;
  background: transparent;
  border: none;
  border-radius: 999px;
  font-family: var(--font-heading);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.services-tab-btn svg {
  stroke: currentColor;
  transition: color var(--transition-fast);
}

.services-tab-btn:hover {
  color: #FFFFFF;
}

.services-tab-btn.is-active {
  background: #242B24;
  color: #FFFFFF;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.services-tab-btn.is-active svg {
  color: var(--accent-cyan);
}

.services-tab-panel {
  display: none;
}

.services-tab-panel.is-active {
  display: block;
  animation: fadeInServicesTab 0.22s ease;
}

@keyframes fadeInServicesTab {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.services-grid-three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.bot-single-card-wrap {
  max-width: 580px;
  margin: 0 auto;
}

.service-tariff-card {
  background: var(--surface-warm);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-md);
  padding: clamp(24px, 3vw, 30px) clamp(20px, 2.5vw, 26px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.service-tariff-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
}

.service-tariff-header {
  margin-bottom: 18px;
}

.service-tariff-title {
  font-family: var(--font-heading);
  font-size: clamp(20px, 2.2vw, 22px);
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.service-tariff-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 12px;
}

.price-prefix {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
}

.price-value {
  font-family: var(--font-heading);
  font-size: clamp(25px, 2.6vw, 28px);
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

.price-currency {
  font-family: var(--font-heading);
  font-size: clamp(21px, 2.2vw, 24px);
  font-weight: 700;
  color: var(--accent-cyan);
}

.service-tariff-desc {
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.service-tariff-features {
  margin-top: 18px;
  margin-bottom: 24px;
  border-top: 1px solid var(--border-light);
  padding-top: 18px;
  flex-grow: 1;
}

.service-tariff-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-tariff-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--text-secondary);
}

.service-tariff-bullet {
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.bot-clarification-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  margin-top: 18px;
  margin-bottom: 24px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.bot-clarification-note svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.service-tariff-footer {
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}

.service-tariff-btn {
  width: 100%;
  justify-content: center;
}

.services-footnote {
  margin-top: clamp(28px, 4vw, 40px);
  text-align: center;
  max-width: 840px;
  margin-left: auto;
  margin-right: auto;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.55;
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   PROCESS (КАК ПРОХОДИТ РАБОТА)
   ========================================================================== */
.process-section {
  padding-top: clamp(60px, 8vw, 96px);
  padding-bottom: clamp(60px, 8vw, 96px);
  border-bottom: 1px solid var(--border-main);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.process-step {
  background: var(--card-bg);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.step-num {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 16px;
}

.step-title {
  font-size: 19px;
  margin-bottom: 12px;
  line-height: 1.25;
}

.step-desc {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.process-note-banner {
  margin-top: 32px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.035);
  border-left: 3px solid var(--accent-cyan);
  font-size: 14.5px;
  color: var(--text-secondary);
}

/* ==========================================================================
   ABOUT & FAQ (ОБО МНЕ И ВОПРОСЫ)
   ========================================================================== */
.about-section {
  padding-top: clamp(60px, 8vw, 96px);
  padding-bottom: clamp(60px, 8vw, 96px);
  border-bottom: 1px solid var(--border-main);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: clamp(36px, 6vw, 64px);
  align-items: start;
}

.about-card {
  background: var(--surface-warm);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-md);
  padding: clamp(28px, 4vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.about-founder-header {
  display: flex;
  align-items: center;
  gap: 18px;
}

.about-founder-photo {
  width: 105px;
  height: 122px;
  flex-shrink: 0;
  display: block;
  object-fit: cover;
}

.about-founder-name {
  font-size: 22px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.about-founder-role {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 7px;
}

.about-founder-role::before {
  content: '';
  width: 7px;
  height: 7px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-cyan);
}

.about-photo-wrap {
  width: 120px;
  height: 155px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: radial-gradient(circle at 50% 20%, #282E28 0%, #111311 85%);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  position: relative;
  flex-shrink: 0;
}

.about-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 0%;
  display: block;
}

.about-monogram {
  width: 56px;
  height: 56px;
  background: #232723;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  position: relative;
}

.about-monogram svg {
  width: 28px;
  height: 28px;
  display: block;
}

.about-monogram::after {
  content: '';
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
}

.about-text {
  font-size: 17px;
  color: var(--text-main);
  line-height: 1.6;
  font-weight: 500;
}

.about-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13.5px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-main);
  padding-top: 20px;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item[open] {
  border-color: var(--text-main);
}

.faq-summary {
  padding: 20px 24px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  list-style: none;
  user-select: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
  color: var(--text-secondary);
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  color: var(--accent-cyan);
}

.faq-content {
  padding: 0 24px 20px 24px;
  font-size: 15.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}

/* ==========================================================================
   FINAL CONTACT SECTION (ТЁМНЫЙ БЛОК)
   ========================================================================== */
.contact-section {
  background-color: var(--dark-bg);
  color: var(--dark-text);
  padding-top: clamp(60px, 8vw, 96px);
  padding-bottom: clamp(60px, 8vw, 96px);
  position: relative;
  overflow: hidden;
}

.contact-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.contact-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.contact-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 20px;
}

.contact-title {
  color: var(--dark-text);
  font-size: clamp(28px, 4.5vw, 46px);
  line-height: 1.15;
  margin-bottom: 20px;
}

.contact-desc {
  color: var(--dark-text-secondary);
  font-size: clamp(17px, 2vw, 19.5px);
  line-height: 1.55;
  margin-bottom: 36px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.contact-direct-channels {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 12px 22px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  margin-top: 20px;
}

.contact-channel-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--dark-text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.contact-channel-item:hover {
  color: var(--accent-cyan);
}

.contact-channel-item svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.contact-channel-sep {
  color: rgba(255, 255, 255, 0.2);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background-color: #0A0C0A;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--dark-text-secondary);
  border-top: 1px solid #202420;
  padding: 32px 0;
  font-size: 14px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-logo-link {
  display: inline-flex;
  align-items: center;
  color: inherit;
}

.footer-logo-link svg {
  height: 28px;
  width: auto;
  color: #FFFFFF;
}

.footer-copy {
  color: var(--dark-text-muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
}

.footer-domain {
  color: var(--dark-text-muted);
  font-family: monospace;
  font-size: 13.5px;
  letter-spacing: 0.04em;
}

.footer-link {
  color: var(--dark-text-secondary);
  white-space: nowrap;
  transition: color var(--transition-fast);
}
.footer-link:hover {
  color: #FFFFFF;
}

/* ==========================================================================
   RESPONSIVE DESIGN (BREAKPOINTS: 1100px, 860px, 640px, 390px, 360px)
   ========================================================================== */
@media (max-width: 1100px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .case-view-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .nav-desktop {
    display: none;
  }
  .mobile-toggle {
    display: inline-flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-content {
    order: 1;
  }
  .hero-showcase {
    order: 2;
  }

  .services-grid-three {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .capability-row {
    grid-template-columns: 44px 1fr;
    gap: 12px 16px;
  }
  .capability-desc {
    grid-column: 2 / -1;
  }

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

@media (max-width: 640px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-section {
    padding-top: 36px;
    padding-bottom: 44px;
  }
  .hero-title {
    font-size: 26px;
    line-height: 1.2;
    margin-bottom: 16px;
  }
  .hero-desc {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 24px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }

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

  .contact-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .contact-actions .btn {
    width: 100%;
  }

  .contact-direct-channels {
    flex-direction: column;
    border-radius: var(--radius-md);
    padding: 14px 18px;
    gap: 10px;
    width: 100%;
  }
  .contact-channel-sep {
    display: none;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .footer-nav {
    gap: 10px 18px;
  }

  .case-tabs-nav {
    gap: 4px;
  }
  .case-tab-btn {
    padding: 10px 14px;
    font-size: 13px;
  }

  .services-switcher {
    width: 100%;
    max-width: 380px;
  }
  .services-tab-btn {
    flex: 1 1 0;
    justify-content: center;
    padding: 10px 12px;
    font-size: 12.5px;
    gap: 6px;
  }

  .about-founder-header {
    gap: 16px;
  }
  .about-founder-photo {
    width: 90px;
    height: 104px;
  }
  .about-founder-name {
    font-size: 20px;
  }
  .about-founder-role {
    font-size: 13px;
  }
}

@media (max-width: 390px) {
  .container {
    padding-left: 14px;
    padding-right: 14px;
  }
  .hero-title {
    font-size: 24px;
  }
  .section-title {
    font-size: 23px;
  }
}