/* ==========================================================================
   DESIGN TOKENS & SYSTEM VARIABLES
   ========================================================================== */
:root {
  --color-bg: #030704;
  --color-surface: rgba(8, 16, 11, 0.76);
  --color-surface-hover: rgba(12, 26, 17, 0.88);
  --color-surface-card: rgba(6, 14, 9, 0.72);
  --color-border: rgba(0, 255, 65, 0.22);
  --color-border-hover: rgba(0, 255, 65, 0.65);
  
  --color-matrix-primary: #00ff41;
  --color-matrix-glow: rgba(0, 255, 65, 0.45);
  --color-matrix-dim: #008f11;
  --color-matrix-dark: #003b00;
  --color-accent-cyan: #00f0ff;
  
  --color-text-title: #ffffff;
  --color-text-sub: #d1ffd7;
  --color-text-body: #9cb8a1;
  --color-text-muted: #5e7a63;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Share Tech Mono', 'Cascadia Code', 'Consolas', 'Courier New', monospace;
  --font-heading: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-glow: 0.4s ease;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

/* ==========================================================================
   RESET & BASE TYPOGRAPHY
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
  background-color: var(--color-bg);
  color: var(--color-text-body);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Кастомный кибер-скроллбар */
::-webkit-scrollbar {
  width: 7px;
}
::-webkit-scrollbar-track {
  background: #020502;
}
::-webkit-scrollbar-thumb {
  background: var(--color-matrix-dim);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-matrix-primary);
  box-shadow: 0 0 10px var(--color-matrix-primary);
}

/* ==========================================================================
   CANVAS 3D VIEWPORT & OVERLAYS (BACKGROUND ENGINE)
   ========================================================================== */
.matrix-viewport {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  perspective: 1000px;
  perspective-origin: 50% 50%;
  z-index: 1;
  pointer-events: none;
  background-color: #000000;
}

#matrix-canvas {
  position: absolute;
  top: -6%;
  left: -6%;
  width: 112%;
  height: 112%;
  display: block;
  pointer-events: none;
  will-change: transform;
  transform: 
    rotateX(calc(var(--mouse-y, 0) * -6.5deg))
    rotateY(calc(var(--mouse-x, 0) * 9.5deg));
}

.overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 4;
}

.overlay.vignette {
  background: radial-gradient(
    circle at center,
    rgba(0, 0, 0, 0) 45%,
    rgba(0, 6, 2, 0.75) 80%,
    rgba(0, 0, 0, 0.96) 100%
  );
}

.overlay.scanlines {
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.16) 0px,
    rgba(0, 0, 0, 0.16) 1px,
    transparent 1px,
    transparent 2px
  );
  opacity: 0.55;
}

/* ==========================================================================
   APP CONTAINER & LAYOUT
   ========================================================================== */
.app-layout {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  pointer-events: auto;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding-top: 100px;
  padding-bottom: 50px;
}

.section-header {
  margin-bottom: 48px;
  text-align: center;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  color: var(--color-matrix-primary);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  background: rgba(0, 255, 65, 0.08);
  border: 1px solid rgba(0, 255, 65, 0.2);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: var(--color-text-title);
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-body);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   HEADER / NAVBAR
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 100;
  background: rgba(3, 8, 4, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: border-color var(--transition-normal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 5px;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.05em;
}

.logo-bracket {
  color: var(--color-matrix-primary);
  text-shadow: 0 0 8px var(--color-matrix-glow);
}

.status-pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 6px;
  border-radius: 50%;
  background: var(--color-matrix-primary);
  box-shadow: 0 0 10px var(--color-matrix-primary);
  animation: pulse-glow 2s infinite ease-in-out;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--color-text-sub);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-matrix-primary);
  text-shadow: 0 0 8px var(--color-matrix-glow);
}

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

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background: rgba(0, 255, 65, 0.06);
  border: 1px solid rgba(0, 255, 65, 0.2);
  border-radius: var(--radius-full);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-matrix-primary);
  box-shadow: 0 0 6px var(--color-matrix-primary);
}

.status-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--color-matrix-primary);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-primary {
  background: var(--color-matrix-primary);
  color: #000000;
  border-color: var(--color-matrix-primary);
  box-shadow: 0 0 16px rgba(0, 255, 65, 0.35);
}

.btn-primary:hover {
  background: #2eff65;
  box-shadow: 0 0 26px rgba(0, 255, 65, 0.6);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(8, 20, 12, 0.8);
  color: #ffffff;
  border-color: var(--color-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--color-matrix-primary);
  color: var(--color-matrix-primary);
  box-shadow: 0 0 15px rgba(0, 255, 65, 0.2);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-sub);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-ghost:hover {
  border-color: var(--color-accent-cyan);
  color: var(--color-accent-cyan);
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
  transform: translateY(-2px);
}

.btn-outline {
  background: rgba(0, 255, 65, 0.06);
  color: var(--color-matrix-primary);
  border-color: rgba(0, 255, 65, 0.3);
  padding: 9px 18px;
}

.btn-outline:hover {
  background: var(--color-matrix-primary);
  color: #000;
  box-shadow: 0 0 18px rgba(0, 255, 65, 0.4);
}

.btn.pulse {
  animation: pulse-button 2.5s infinite;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding-top: 90px;
  padding-bottom: 70px;
  text-align: left;
}

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

.badge-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--color-matrix-primary);
  background: rgba(0, 255, 65, 0.08);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 255, 65, 0.25);
  display: inline-block;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5.2vw, 4.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--color-text-title);
  margin-bottom: 24px;
}

.title-sub {
  display: block;
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 500;
  color: var(--color-matrix-primary);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.decode-text {
  text-shadow: 0 0 25px rgba(0, 255, 65, 0.3);
}

.hero-description {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--color-text-sub);
  max-width: 760px;
  line-height: 1.6;
  margin-bottom: 38px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 60px;
}

/* ==========================================================================
   KPI GRID
   ========================================================================== */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.kpi-card {
  background: var(--color-surface-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  transition: all var(--transition-normal);
}

.kpi-card:hover {
  border-color: var(--color-matrix-primary);
  box-shadow: 0 0 22px rgba(0, 255, 65, 0.15);
  transform: translateY(-3px);
}

.kpi-num {
  font-family: var(--font-mono);
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--color-matrix-primary);
  line-height: 1.1;
  margin-bottom: 6px;
  text-shadow: 0 0 14px rgba(0, 255, 65, 0.4);
}

.kpi-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 4px;
}

.kpi-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.service-card {
  position: relative;
  background: var(--color-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.service-card:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-matrix-primary);
  box-shadow: 0 0 30px rgba(0, 255, 65, 0.2);
  transform: translateY(-5px);
}

.service-card.highlight {
  border-color: rgba(0, 255, 65, 0.45);
  box-shadow: 0 0 25px rgba(0, 255, 65, 0.15);
}

.highlight-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--color-matrix-primary);
  color: #000;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.card-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.card-chip {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-matrix-primary);
  margin-bottom: 8px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--color-text-body);
  margin-bottom: 24px;
  line-height: 1.55;
}

.feature-list {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.feature-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: var(--color-text-sub);
  margin-bottom: 10px;
}

.feature-list li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--color-matrix-primary);
  font-size: 1rem;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.price-from {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-matrix-primary);
  text-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

.card-action {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #ffffff;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.card-action:hover {
  color: var(--color-matrix-primary);
  transform: translateX(4px);
}

/* ==========================================================================
   PRODUCTS SECTION (ГОТОВЫЕ IT-ТОВАРЫ)
   ========================================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--color-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.product-card:hover {
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.18);
  transform: translateY(-4px);
}

.product-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.product-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--color-matrix-primary);
  background: rgba(0, 255, 65, 0.08);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 255, 65, 0.2);
}

.product-time {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-accent-cyan);
}

.product-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  line-height: 1.35;
}

.product-desc {
  font-size: 0.92rem;
  color: var(--color-text-body);
  margin-bottom: 20px;
  flex-grow: 1;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.spec-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-sub);
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.product-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.product-price {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
}

.product-price small {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

/* ==========================================================================
   INTERACTIVE PROJECT CALCULATOR
   ========================================================================== */
.calc-box {
  background: var(--color-surface);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 38px;
  box-shadow: 0 0 35px rgba(0, 0, 0, 0.6);
}

.calc-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-bottom: 36px;
}

.calc-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-matrix-primary);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.calc-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.calc-options.row {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.calc-btn {
  background: rgba(10, 22, 14, 0.65);
  border: 1px solid rgba(0, 255, 65, 0.18);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: left;
  cursor: pointer;
  color: var(--color-text-sub);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.calc-btn:hover {
  background: rgba(15, 30, 20, 0.85);
  border-color: rgba(0, 255, 65, 0.45);
}

.calc-btn.active {
  background: rgba(0, 255, 65, 0.12);
  border-color: var(--color-matrix-primary);
  box-shadow: 0 0 16px rgba(0, 255, 65, 0.25);
  color: #ffffff;
}

.calc-btn-title {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.98rem;
}

.calc-btn-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.calc-btn.active .calc-btn-desc {
  color: var(--color-text-sub);
}

/* Кастомные чекбоксы калькулятора */
.calc-check {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(10, 22, 14, 0.6);
  border: 1px solid rgba(0, 255, 65, 0.16);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.calc-check:hover {
  background: rgba(15, 30, 20, 0.85);
  border-color: rgba(0, 255, 65, 0.4);
}

.calc-check input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.check-ui {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1px solid rgba(0, 255, 65, 0.35);
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.calc-check input:checked + .check-ui {
  background: var(--color-matrix-primary);
  border-color: var(--color-matrix-primary);
  box-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
}

.calc-check input:checked + .check-ui::after {
  content: '✓';
  color: #000;
  font-size: 13px;
  font-weight: 900;
}

.check-text {
  font-size: 0.92rem;
  color: var(--color-text-sub);
}

.calc-check input:checked ~ .check-text {
  color: #ffffff;
  font-weight: 500;
}

/* Итоговая плашка калькулятора */
.calc-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.summary-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.summary-line {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.summary-label {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--color-text-body);
}

.summary-value.price {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-matrix-primary);
  text-shadow: 0 0 16px rgba(0, 255, 65, 0.45);
}

.summary-value.time {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-accent-cyan);
}

.summary-hint {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   TECH STACK & WORKFLOW
   ========================================================================== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.stack-card {
  background: var(--color-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 30px;
}

.stack-category {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-matrix-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(0, 255, 65, 0.15);
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #ffffff;
  background: rgba(0, 255, 65, 0.06);
  border: 1px solid rgba(0, 255, 65, 0.22);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.tag:hover {
  background: rgba(0, 255, 65, 0.18);
  border-color: var(--color-matrix-primary);
  box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.workflow-step {
  background: var(--color-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition-normal);
}

.workflow-step:hover {
  border-color: var(--color-matrix-primary);
  transform: translateY(-4px);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-matrix-primary);
  margin-bottom: 12px;
  text-shadow: 0 0 12px rgba(0, 255, 65, 0.35);
}

.step-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.88rem;
  color: var(--color-text-body);
  line-height: 1.5;
}

/* ==========================================================================
   CONTACTS TERMINAL & FOOTER
   ========================================================================== */
.contacts-section {
  padding-bottom: 80px;
}

.terminal-card {
  background: rgba(4, 10, 6, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 45px rgba(0, 0, 0, 0.8);
}

.terminal-bar {
  display: flex;
  align-items: center;
  padding: 12px 18px;
  background: rgba(0, 0, 0, 0.6);
  border-bottom: 1px solid rgba(0, 255, 65, 0.15);
}

.terminal-dots {
  display: flex;
  gap: 8px;
  margin-right: 16px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.terminal-body {
  padding: 36px 32px;
}

.terminal-line {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.term-green {
  color: var(--color-matrix-primary);
  font-weight: 700;
}

.term-dim {
  color: var(--color-text-muted);
}

.contacts-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  color: #ffffff;
  margin-top: 26px;
  margin-bottom: 10px;
}

.contacts-sub {
  font-size: 1rem;
  color: var(--color-text-sub);
  max-width: 650px;
  margin-bottom: 30px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-normal);
}

.contact-btn.primary {
  background: var(--color-matrix-primary);
  color: #000000;
  font-weight: 700;
  box-shadow: 0 0 16px rgba(0, 255, 65, 0.35);
}

.contact-btn.primary:hover {
  background: #2eff65;
  box-shadow: 0 0 26px rgba(0, 255, 65, 0.6);
  transform: translateY(-2px);
}

.contact-btn.secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.contact-btn.secondary:hover {
  border-color: var(--color-matrix-primary);
  color: var(--color-matrix-primary);
  transform: translateY(-2px);
}

.contact-btn.ghost {
  background: transparent;
  border: 1px solid rgba(0, 240, 255, 0.3);
  color: var(--color-accent-cyan);
}

.contact-btn.ghost:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.25);
  transform: translateY(-2px);
}

/* Подвал */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 30px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(2, 6, 3, 0.9);
  backdrop-filter: blur(10px);
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-matrix-primary);
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.footer-right {
  display: flex;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-matrix-dim);
}

/* ==========================================================================
   KEYFRAME ANIMATIONS
   ========================================================================= */
@keyframes pulse-glow {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 0 8px var(--color-matrix-primary);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.85);
    box-shadow: 0 0 2px var(--color-matrix-primary);
  }
}

@keyframes pulse-button {
  0%, 100% {
    box-shadow: 0 0 16px rgba(0, 255, 65, 0.35);
  }
  50% {
    box-shadow: 0 0 28px rgba(0, 255, 65, 0.65);
  }
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 900px) {
  .nav-menu {
    display: none; /* Для мобильных упрощаем шапку */
  }
  
  .header-actions .status-badge {
    display: none;
  }
  
  .hero-section {
    padding-top: 60px;
  }

  .calc-summary {
    flex-direction: column;
    align-items: flex-start;
  }

  .summary-action {
    width: 100%;
  }

  .summary-action .btn {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .hero-cta-group {
    flex-direction: column;
  }
  
  .hero-cta-group .btn {
    width: 100%;
  }

  .calc-box {
    padding: 24px 18px;
  }

  .terminal-body {
    padding: 24px 18px;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}