/* ==========================================================================
   YELLOWTECH — CyberSport PC Optimization Landing
   Design System & Styling
   ========================================================================== */

:root {
  --bg: #07080A;
  --bg-gradient: radial-gradient(circle at 50% 0%, #17160E 0%, #07080A 75%);
  --surface: #101216;
  --surface-2: #16191F;
  --surface-3: #1C2028;
  --surface-card: rgba(22, 25, 31, 0.85);
  --surface-glass: rgba(22, 25, 31, 0.65);
  
  --border: #222730;
  --border-light: rgba(255, 255, 255, 0.08);
  --border-yellow: rgba(244, 196, 48, 0.35);
  --border-yellow-glow: rgba(244, 196, 48, 0.7);

  --yellow: #F4C430;
  --yellow-bright: #FFE066;
  --yellow-deep: #D4A017;
  --yellow-dark: #8A6800;
  --gold: #E5B23B;
  
  --cyan: #00F0FF;
  --green: #2ED573;
  --green-glow: rgba(46, 213, 115, 0.35);
  --red: #FF4757;
  --red-glow: rgba(255, 71, 87, 0.35);

  --text: #F1F3F7;
  --text-muted: #8E96A4;
  --text-dim: #5C6473;
  
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --radius-full: 9999px;

  --font-heading: 'Unbounded', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-glow: 0 0 35px rgba(244, 196, 48, 0.25);
  --shadow-card: 0 20px 45px -15px rgba(0, 0, 0, 0.7);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg);
  background-image: 
    radial-gradient(ellipse 90% 60% at 50% -10%, rgba(244, 196, 48, 0.12), transparent 70%),
    radial-gradient(circle 1px at 50% 50%, rgba(244, 196, 48, 0.05) 1px, transparent 1px);
  background-size: 100% 100%, 28px 28px;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--surface-3);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--yellow-deep);
}

/* Typography Utility */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.mono {
  font-family: var(--font-mono);
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

.container {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Subtle background noise overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: screen;
}

/* Scroll progress bar */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--yellow), var(--yellow-bright), #FFF);
  z-index: 1001;
  box-shadow: 0 0 12px var(--yellow);
  transition: width 0.08s linear;
}

/* Background Particles Canvas */
#particlesCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

.page-wrapper {
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 15px 28px;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease-spring), box-shadow 0.25s ease, filter 0.2s ease, border-color 0.2s;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(0.97) !important;
}

.btn-primary {
  background: linear-gradient(135deg, var(--yellow-bright), var(--yellow) 60%, var(--yellow-deep));
  color: #120E02;
  box-shadow: 0 10px 25px -6px rgba(244, 196, 48, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.3) inset;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -100%;
  width: 60%;
  height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: rotate(25deg);
  transition: left 0.6s var(--ease-smooth);
}

.btn-primary:hover::after {
  left: 140%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
  box-shadow: 0 16px 35px -6px rgba(244, 196, 48, 0.65), 0 0 20px rgba(244, 196, 48, 0.4);
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: 0 8px 20px -8px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--yellow);
  color: var(--yellow-bright);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -8px rgba(244, 196, 48, 0.25);
}

.btn-gold {
  background: linear-gradient(135deg, #FFE680, #D2A53C 70%, #A67C1E);
  color: #151003;
  box-shadow: 0 10px 30px -6px rgba(210, 165, 60, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.4) inset;
}

.btn-gold:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: 0 18px 40px -6px rgba(210, 165, 60, 0.8);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  border: 1px solid var(--border-light);
}

.btn-ghost:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 13.5px;
}

.btn-block {
  width: 100%;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(244, 196, 48, 0.08);
  border: 1px solid rgba(244, 196, 48, 0.25);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--yellow-bright);
  letter-spacing: 0.02em;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 10px var(--yellow);
  position: relative;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1.5px solid var(--yellow);
  animation: pulseAnimation 2s ease-out infinite;
}

@keyframes pulseAnimation {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.6); opacity: 0; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--yellow);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.eyebrow::before {
  content: '';
  width: 14px;
  height: 2px;
  background: var(--yellow);
  display: inline-block;
}

/* ==========================================================================
   HEADER / NAVBAR
   ========================================================================== */

header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 8, 10, 0.75);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(34, 39, 48, 0.6);
  transition: all 0.3s ease;
}

header.site-header.scrolled {
  background: rgba(7, 8, 10, 0.92);
  border-bottom-color: rgba(244, 196, 48, 0.2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 28px;
  max-width: 1360px;
  margin: 0 auto;
  gap: 16px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  margin-right: 28px;
  white-space: nowrap;
}

.brand-logo-img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(244, 196, 48, 0.4));
  transition: transform 0.4s var(--ease-spring);
  flex-shrink: 0;
}

.brand-link:hover .brand-logo-img {
  transform: rotate(10deg) scale(1.1);
}

.brand-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 17px;
  color: var(--text);
  letter-spacing: 0.04em;
  display: flex;
  flex-direction: column;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1.1;
}

.brand-title span.accent {
  color: var(--yellow);
}

.brand-title span.tag {
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 1;
  white-space: nowrap;
}

.nav-links a {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 2px;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--yellow);
  border-radius: 2px;
  transition: width 0.25s var(--ease-smooth);
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  white-space: nowrap;
}

.nav-toggle-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
  padding: 6px;
  flex-shrink: 0;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-section {
  position: relative;
  padding: 70px 0 90px;
  overflow: hidden;
}

.hero-glow-bg {
  position: absolute;
  top: -100px;
  right: -80px;
  width: 750px;
  height: 750px;
  background: radial-gradient(circle, rgba(244, 196, 48, 0.18) 0%, transparent 65%);
  pointer-events: none;
  animation: heroGlowPulse 7s ease-in-out infinite alternate;
}

@keyframes heroGlowPulse {
  0% { transform: scale(0.95); opacity: 0.7; }
  100% { transform: scale(1.15); opacity: 1; }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 2;
}

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

.hero-title {
  font-size: 50px;
  line-height: 1.1;
  margin-top: 18px;
  margin-bottom: 20px;
}

.hero-title .highlight {
  color: var(--yellow);
  text-shadow: 0 0 35px rgba(244, 196, 48, 0.35);
  display: inline;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.6;
  margin-bottom: 26px;
}

/* Trigger Banner (3 Key Benefits) */
.hero-trigger-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  background: rgba(22, 25, 31, 0.75);
  border: 1px solid rgba(244, 196, 48, 0.25);
  padding: 10px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 30px;
  backdrop-filter: blur(12px);
}

.trigger-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  padding: 4px 8px;
}

.trigger-tag span.badge-num {
  font-family: var(--font-mono);
  color: var(--yellow-bright);
  font-weight: 700;
}

.trigger-divider {
  width: 1px;
  height: 18px;
  background: rgba(255, 255, 255, 0.15);
  align-self: center;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 32px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.hero-stat-item .stat-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--yellow-bright);
  text-shadow: 0 0 15px rgba(244, 196, 48, 0.3);
}

.hero-stat-item .stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

/* Hero Visual / Mascot */
.hero-visual-col {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 520px;
}

.mascot-wrap {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform 0.25s var(--ease-smooth);
}

.mascot-image {
  height: 480px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 25px 45px rgba(0, 0, 0, 0.8));
  animation: mascotFloat 5s ease-in-out infinite;
  transition: transform 0.3s ease;
}

@keyframes mascotFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

.mascot-halo {
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(244, 196, 48, 0.28) 0%, transparent 68%);
  z-index: 1;
  pointer-events: none;
  animation: haloPulse 4s ease-in-out infinite;
}

@keyframes haloPulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
}

/* Circular cyber rings */
.orbit-ring {
  position: absolute;
  border: 1px solid rgba(244, 196, 48, 0.15);
  border-radius: 50%;
  pointer-events: none;
}
.orbit-ring.r1 {
  width: 420px;
  height: 420px;
  animation: rotateSlow 24s linear infinite;
  border-top-color: rgba(244, 196, 48, 0.4);
}
.orbit-ring.r2 {
  width: 520px;
  height: 520px;
  animation: rotateSlowRev 32s linear infinite;
  border-bottom-color: rgba(244, 196, 48, 0.3);
}

@keyframes rotateSlow { to { transform: rotate(360deg); } }
@keyframes rotateSlowRev { to { transform: rotate(-360deg); } }

/* Floating Telemetry Cards */
.hero-floating-card {
  position: absolute;
  z-index: 6;
  background: rgba(18, 21, 26, 0.92);
  border: 1px solid rgba(244, 196, 48, 0.4);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.8), 0 0 20px -5px rgba(244, 196, 48, 0.2);
  transition: transform 0.3s var(--ease-spring);
}

.hero-floating-card:hover {
  transform: translateY(-5px) scale(1.03);
}

.hero-floating-card.card-top {
  top: 20px;
  right: 10px;
  animation: floatTop 6s ease-in-out infinite;
}

.hero-floating-card.card-bottom {
  bottom: 25px;
  left: 0px;
  animation: floatBottom 7s ease-in-out infinite;
}

@keyframes floatTop {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes floatBottom {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

.card-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.card-value {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 800;
  color: var(--yellow-bright);
}

.card-value.green {
  color: var(--green);
  text-shadow: 0 0 10px var(--green-glow);
}

.card-sub {
  font-size: 11.5px;
  color: var(--text-dim);
  margin-top: 2px;
}

/* ==========================================================================
   SECTION COMMON STYLES
   ========================================================================== */

section {
  padding: 95px 0;
  position: relative;
}

.section-header {
  margin-bottom: 50px;
}

.section-header.center {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 38px;
  margin-top: 14px;
  margin-bottom: 14px;
  line-height: 1.15;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   PROBLEM SECTION (ПОЧЕМУ ТВОЙ ДОРОГОЙ ПК ЛАГАЕТ?)
   ========================================================================== */

.problem-section {
  background: linear-gradient(180deg, var(--bg) 0%, #0E1014 50%, var(--bg) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.problem-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease-spring), border-color 0.4s, box-shadow 0.4s;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
  opacity: 0.6;
  transition: opacity 0.3s;
}

.problem-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 71, 87, 0.4);
  box-shadow: 0 20px 40px -15px rgba(255, 71, 87, 0.15);
}

.problem-card:hover::before {
  opacity: 1;
}

.problem-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(255, 71, 87, 0.12);
  border: 1px solid rgba(255, 71, 87, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--red);
  font-size: 24px;
  margin-bottom: 22px;
}

.problem-card h3 {
  font-size: 19px;
  margin-bottom: 12px;
  color: var(--text);
}

.problem-card p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

.problem-tag-pill {
  margin-top: 18px;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--red);
  background: rgba(255, 71, 87, 0.08);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 71, 87, 0.2);
}

/* ==========================================================================
   SOLUTIONS SECTION (НАШЕ РЕШЕНИЕ — ЧТО ДЕЛАЕТ YELLOWTECH)
   ========================================================================== */

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.solution-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease-spring), border-color 0.4s, box-shadow 0.4s;
}

.solution-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at top right, rgba(244, 196, 48, 0.08), transparent 70%);
  pointer-events: none;
}

.solution-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-yellow);
  box-shadow: 0 24px 50px -15px rgba(244, 196, 48, 0.2);
}

.solution-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.solution-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(244, 196, 48, 0.1);
  border: 1px solid rgba(244, 196, 48, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--yellow);
  font-size: 26px;
  flex-shrink: 0;
}

.solution-card h3 {
  font-size: 21px;
  color: var(--yellow-bright);
}

.solution-card p.solution-summary {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

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

.solution-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: #D2D6DC;
}

.solution-features-list li .check-icon {
  color: var(--yellow);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ==========================================================================
   CASE SECTION (КИЛЛЕР-ФИЧА: РЕАЛЬНЫЙ КЕЙС ДО / ПОСЛЕ)
   ========================================================================== */

.case-section {
  background: linear-gradient(180deg, #0A0C10 0%, #12151B 50%, #0A0C10 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.case-spec-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 12px 24px;
  margin: 0 auto 40px;
  max-width: 780px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.case-spec-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}

.case-spec-item .spec-icon {
  color: var(--yellow);
}

.case-spec-divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-dim);
}

/* Dual Column: Interactive Slider + Telegram Chat */
.case-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: stretch;
}

/* Split Slider Container */
.slider-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.slider-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.slider-card-head h3 {
  font-size: 19px;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* The interactive Before/After viewer */
.before-after-container {
  position: relative;
  width: 100%;
  height: 380px;
  border-radius: var(--radius-md);
  overflow: hidden;
  user-select: none;
  border: 1px solid var(--border);
  background: #090B0E;
}

.split-side {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.split-side.side-before {
  left: 0;
  background: linear-gradient(145deg, #180D0E, #0D0E12 70%);
}

.split-side.side-after {
  left: 0;
  background: linear-gradient(145deg, #1F1B0B, #0D0E12 70%);
  clip-path: polygon(50% 0, 100% 0, 100% 100%, 50% 100%);
  transition: clip-path 0.05s linear;
}

.split-label-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  width: fit-content;
}

.side-before .split-label-badge {
  background: rgba(255, 71, 87, 0.15);
  border: 1px solid rgba(255, 71, 87, 0.4);
  color: var(--red);
}

.side-after .split-label-badge {
  background: rgba(244, 196, 48, 0.18);
  border: 1px solid rgba(244, 196, 48, 0.5);
  color: var(--yellow-bright);
}

.split-metrics {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 14px 0;
}

.metric-big-num {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
}

.side-before .metric-big-num {
  color: var(--red);
}

.side-after .metric-big-num {
  color: var(--yellow-bright);
  text-shadow: 0 0 25px rgba(244, 196, 48, 0.4);
}

.metric-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13.5px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.metric-row .metric-label {
  color: var(--text-muted);
}

.metric-row .metric-val {
  font-family: var(--font-mono);
  font-weight: 700;
}

/* Mini chart inside split */
.split-chart-box {
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Grab handle */
.slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--yellow);
  box-shadow: 0 0 15px var(--yellow);
  cursor: ew-resize;
  z-index: 10;
  transform: translateX(-50%);
}

.handle-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--yellow);
  color: #120E02;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 0 20px rgba(244, 196, 48, 0.8), 0 4px 10px rgba(0, 0, 0, 0.5);
  font-weight: 800;
}

/* Drag instructions */
.slider-hint {
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  margin-top: 14px;
}

/* Telegram Review Chat Mockup */
.telegram-case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
}

.tg-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.tg-user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tg-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2AABEE, #229ED9);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.tg-user-details h4 {
  font-size: 15px;
  color: var(--text);
  margin-bottom: 2px;
}

.tg-user-details span.tg-status {
  font-size: 12px;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 5px;
}

.tg-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

.tg-dialog-box {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.tg-message {
  max-width: 88%;
  padding: 14px 16px;
  border-radius: 16px;
  position: relative;
  font-size: 14px;
  line-height: 1.5;
}

.tg-message.client {
  align-self: flex-start;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: #E2E6EE;
  border-bottom-left-radius: 4px;
}

.tg-message.yellowtech {
  align-self: flex-end;
  background: linear-gradient(135deg, #1C190F, #221D11);
  border: 1px solid rgba(244, 196, 48, 0.4);
  color: #FFF;
  border-bottom-right-radius: 4px;
}

.tg-time {
  font-size: 10.5px;
  color: var(--text-dim);
  float: right;
  margin-top: 6px;
  margin-left: 10px;
}

.tg-quote-box {
  background: rgba(255, 71, 87, 0.08);
  border-left: 3px solid var(--red);
  padding: 8px 12px;
  border-radius: 4px;
  margin: 8px 0;
  font-size: 12.5px;
  color: #FF8A95;
  font-style: italic;
}

.tg-chat-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   PRICING SECTION (ТАРИФЫ)
   ========================================================================== */

.pricing-section {
  position: relative;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
  margin-bottom: 50px;
}

.price-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 34px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s, border-color 0.4s;
}

.price-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.6);
}

/* Featured PRO card with rotating glowing border */
.price-card.featured {
  background: linear-gradient(165deg, #1A170E 0%, var(--surface) 60%);
  border: 1px solid rgba(244, 196, 48, 0.6);
  transform: scale(1.03);
  box-shadow: 0 25px 65px -15px rgba(244, 196, 48, 0.35);
  z-index: 2;
}

.price-card.featured:hover {
  transform: scale(1.05) translateY(-8px);
  box-shadow: 0 32px 80px -15px rgba(244, 196, 48, 0.45);
}

.featured-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, var(--yellow), var(--yellow-bright));
  color: #151002;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 20px rgba(244, 196, 48, 0.6);
}

.price-tag-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--yellow);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.price-card h3 {
  font-size: 24px;
  margin-bottom: 8px;
}

.price-card p.tier-desc {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.5;
  min-height: 42px;
  margin-bottom: 16px;
}

.price-number-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.price-amount {
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 800;
  color: var(--text);
}

.price-card.featured .price-amount {
  color: var(--yellow-bright);
  text-shadow: 0 0 20px rgba(244, 196, 48, 0.3);
}

.price-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  flex: 1;
}

.price-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: #CED3DC;
  line-height: 1.45;
}

.price-features-list li .feat-check {
  color: var(--yellow);
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 1px;
}

.price-support-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-family: var(--font-mono);
}

.price-support-badge .support-icon {
  color: var(--green);
}

/* ==========================================================================
   ADD-ONS & CALCULATOR SECTION
   ========================================================================== */

.addons-container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  margin-top: 30px;
  box-shadow: var(--shadow-card);
}

.addons-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 28px;
}

.addons-header h3 {
  font-size: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.addons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}

.addon-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
}

.addon-item:hover {
  border-color: var(--border-yellow);
  background: var(--surface-3);
}

.addon-item.selected {
  border-color: var(--yellow);
  background: rgba(244, 196, 48, 0.08);
}

.addon-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.addon-checkbox {
  width: 20px;
  height: 20px;
  border-radius: 6px;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #120E02;
  font-size: 12px;
  font-weight: 800;
  transition: all 0.2s ease;
  background: var(--surface);
}

.addon-item.selected .addon-checkbox {
  background: var(--yellow);
  border-color: var(--yellow);
}

.addon-name {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
}

.addon-price {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--yellow-bright);
}

.addons-summary-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 28px;
}

.addons-total-text {
  font-size: 15px;
  color: var(--text-muted);
}

.addons-total-amount {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 800;
  color: var(--yellow-bright);
  margin-left: 10px;
}

/* ==========================================================================
   WORK PROCESS SECTION (КАК ПРОХОДИТ НАСТРОЙКА)
   ========================================================================== */

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.process-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  position: relative;
  transition: transform 0.3s ease;
}

.process-step:hover {
  transform: translateY(-5px);
  border-color: rgba(244, 196, 48, 0.3);
}

.process-step-num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 800;
  color: rgba(244, 196, 48, 0.25);
  margin-bottom: 12px;
}

.process-step h4 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--text);
}

.process-step p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   SELF-OPTIMIZE MANUAL BOT CALLOUT
   ========================================================================== */

.bot-callout-card {
  background: linear-gradient(135deg, #1B180E 0%, var(--surface) 60%);
  border: 1px solid rgba(244, 196, 48, 0.4);
  border-radius: var(--radius-xl);
  padding: 44px 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 50px;
  box-shadow: 0 20px 50px -15px rgba(244, 196, 48, 0.15);
}

.bot-callout-text h3 {
  font-size: 26px;
  margin-bottom: 10px;
}

.bot-callout-text p {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 20px;
}

/* ==========================================================================
   FAQ SECTION (ЧАСТЫЕ ВОПРОСЫ)
   ========================================================================== */

.faq-wrapper {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  transition: all 0.3s ease;
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 8px;
  cursor: pointer;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--text);
  font-family: var(--font-heading);
  transition: color 0.2s ease;
}

.faq-question:hover {
  color: var(--yellow-bright);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: monospace;
  font-size: 18px;
  color: var(--yellow);
  transition: transform 0.3s var(--ease-spring), background 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--yellow);
  color: #120E02;
}

.faq-item.active .faq-question {
  color: var(--yellow);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-smooth);
}

.faq-answer-inner {
  padding: 0 8px 24px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   FINAL CTA SECTION
   ========================================================================== */

.final-cta-section {
  padding: 60px 0 100px;
}

.final-cta-banner {
  background: linear-gradient(135deg, #221D10 0%, var(--surface-2) 60%, #0F1217 100%);
  border: 1px solid rgba(244, 196, 48, 0.4);
  border-radius: var(--radius-xl);
  padding: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 70px -20px rgba(0, 0, 0, 0.8), 0 0 50px -10px rgba(244, 196, 48, 0.2);
}

.final-cta-banner::before {
  content: '';
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(244, 196, 48, 0.25), transparent 70%);
  pointer-events: none;
}

.final-cta-content h2 {
  font-size: 36px;
  margin-bottom: 12px;
}

.final-cta-content p {
  font-size: 16.5px;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 28px;
}

.final-cta-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.final-mascot-img {
  width: 190px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.7));
  animation: mascotFloat 5s ease-in-out infinite;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 50px 0 40px;
  background: #050608;
  color: var(--text-muted);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-social-links {
  display: flex;
  gap: 16px;
}

.social-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-full);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.social-btn:hover {
  border-color: var(--yellow);
  color: var(--yellow-bright);
  transform: translateY(-2px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 24px;
  font-size: 13px;
}

.footer-bottom a:hover {
  color: var(--yellow-bright);
}

/* ==========================================================================
   INTERACTIVE BOOKING MODAL
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--surface);
  border: 1px solid rgba(244, 196, 48, 0.4);
  border-radius: var(--radius-xl);
  max-width: 580px;
  width: 100%;
  padding: 36px;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.8), 0 0 40px rgba(244, 196, 48, 0.15);
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s var(--ease-spring);
}

.modal-overlay.active .modal-box {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  transition: all 0.2s ease;
}

.modal-close-btn:hover {
  color: var(--text);
  border-color: var(--yellow);
}

.modal-box h3 {
  font-size: 24px;
  margin-bottom: 8px;
}

.modal-box p.modal-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.form-input, .form-select {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease;
}

.form-input:focus, .form-select:focus {
  border-color: var(--yellow);
}

/* Toast alert notification */
.toast-notice {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: linear-gradient(135deg, var(--yellow-bright), var(--yellow));
  color: #120E02;
  font-weight: 700;
  font-size: 14px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  box-shadow: 0 15px 35px -8px rgba(244, 196, 48, 0.7);
  z-index: 3000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s var(--ease-spring);
}

.toast-notice.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    align-items: center;
  }
  .hero-title {
    font-size: 40px;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-trigger-bar {
    justify-content: center;
  }
  .hero-ctas {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .hero-visual-col {
    min-height: 440px;
  }
  .mascot-image {
    height: 400px;
  }
  .case-layout-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }
  .price-card.featured {
    transform: none;
  }
  .price-card.featured:hover {
    transform: translateY(-8px);
  }
  .problem-cards-grid {
    grid-template-columns: 1fr;
  }
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr 1fr;
  }
  .bot-callout-card {
    flex-direction: column;
    text-align: center;
    padding: 34px 24px;
  }
  .final-cta-banner {
    flex-direction: column;
    text-align: center;
    padding: 40px 24px;
  }
  .final-cta-buttons {
    justify-content: center;
  }
}

@media (max-width: 1140px) {
  .nav-links {
    display: none;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 12, 16, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    gap: 18px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
  }
  .nav-toggle-btn {
    display: block;
  }
  .nav-actions .btn-ghost {
    display: none;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 32px;
  }
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .before-after-container {
    height: 420px;
  }
  .addons-container {
    padding: 24px 18px;
  }
  .addons-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-top, .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 18px;
  }
}