/* ===================================================================
   LUMINA SHOT / CARROTSHOT - Telegram Mini App Landing Page
   Design System: High-Yield Dark Minimalist + Liquid Glass
   Accents: Primary (Emerald Green #10B981) + Secondary (Warm Carrot #FF7849)
   Container: ~860px Centered Stream
=================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- Root CSS Variables --- */
:root {
  /* Dark Theme Palette (Default) */
  --bg-base: #080a0e;
  --bg-subtle: #0d1117;
  --bg-surface: #121822;
  --bg-elevated: #18202d;
  --bg-glass: rgba(14, 18, 25, 0.72);
  --bg-glass-heavy: rgba(10, 13, 19, 0.88);
  --bg-glass-card: rgba(255, 255, 255, 0.025);
  --bg-glass-card-hover: rgba(255, 255, 255, 0.045);

  /* Borders: ultra-thin, semi-transparent, strictly elegant */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(16, 185, 129, 0.35);

  /* Primary Accent: Emerald Mint Green */
  --accent-primary: #10b981;
  --accent-primary-hover: #05df72;
  --accent-primary-glow: rgba(16, 185, 129, 0.22);
  --accent-primary-subtle: rgba(16, 185, 129, 0.1);

  /* Secondary Accent: Radiant Carrot Coral */
  --accent-secondary: #ff7849;
  --accent-secondary-hover: #ff8f64;
  --accent-secondary-glow: rgba(255, 120, 73, 0.25);
  --accent-secondary-subtle: rgba(255, 120, 73, 0.12);

  /* Typography Colors */
  --text-primary: #f3f5f8;
  --text-secondary: #9da8b6;
  --text-muted: #5e6b7d;
  --text-inverse: #080a0e;

  /* Sizing & Layout */
  --container-max: 860px;
  --header-height: 56px;
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  /* Standard Spacing Scale */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 72px;
  --space-4xl: 104px;

  /* Transitions & Shadows */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 180ms;
  --duration-normal: 280ms;
  --duration-slow: 450ms;

  --shadow-ambient: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
  --shadow-glow-green: 0 0 35px -8px var(--accent-primary-glow);
  --shadow-glow-orange: 0 0 35px -8px var(--accent-secondary-glow);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.35);
}

/* --- Light Mode Adaptations --- */
[data-theme="light"] {
  --bg-base: #f5f6f8;
  --bg-subtle: #ebedf1;
  --bg-surface: #ffffff;
  --bg-elevated: #f0f2f5;
  --bg-glass: rgba(255, 255, 255, 0.8);
  --bg-glass-heavy: rgba(245, 246, 248, 0.92);
  --bg-glass-card: rgba(0, 0, 0, 0.02);
  --bg-glass-card-hover: rgba(0, 0, 0, 0.04);

  --border-subtle: rgba(0, 0, 0, 0.07);
  --border-medium: rgba(0, 0, 0, 0.12);
  --border-glass: rgba(0, 0, 0, 0.08);

  --text-primary: #12161f;
  --text-secondary: #586374;
  --text-muted: #8b96a5;
  --text-inverse: #ffffff;

  --shadow-ambient: 0 20px 40px -15px rgba(0, 0, 0, 0.07);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 0.95rem;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--duration-normal) var(--ease-smooth),
              color var(--duration-normal) var(--ease-smooth);
}

/* Subtle background ambient mesh glow */
body::before {
  content: '';
  position: fixed;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, rgba(255, 120, 73, 0.04) 50%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* --- Layout Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
  z-index: 1;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.title-hero {
  font-size: clamp(2.1rem, 4.2vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.12;
}

.title-section {
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-xs);
}

.subtitle-section {
  color: var(--text-secondary);
  font-size: 0.98rem;
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.55;
}

.text-gradient-emerald {
  background: linear-gradient(135deg, #10b981 0%, #34d399 50%, #a7f3d0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-carrot {
  background: linear-gradient(135deg, #ff7849 0%, #ff9f43 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===================================================================
   SECTION 1: MINIMAL FLOATING HEADER
=================================================================== */
.header-wrapper {
  position: fixed;
  top: 18px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  z-index: 1000;
  pointer-events: none;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.header-inner {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 6px 10px 6px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  transition: all var(--duration-normal) var(--ease-spring);
  width: auto;
  max-width: calc(100% - 32px);
}

/* Scrolled State: Liquid Glass Pill */
.header-inner.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-color: var(--border-glass);
  box-shadow: 0 12px 30px -8px rgba(0, 0, 0, 0.35),
              0 0 0 1px rgba(255, 255, 255, 0.04);
  padding: 5px 8px 5px 14px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}

.logo-badge {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, #059669 100%);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 0.8rem;
  box-shadow: 0 2px 8px var(--accent-primary-glow);
}

/* Smooth Sliding Nav ("плавная ездилка") */
.header-nav {
  position: relative;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.03);
  padding: 3px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
}

.nav-indicator {
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 0;
  width: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-pill);
  pointer-events: none;
  transition: transform var(--duration-fast) var(--ease-spring),
              width var(--duration-fast) var(--ease-spring),
              opacity var(--duration-fast);
  opacity: 0;
}

[data-theme="light"] .nav-indicator {
  background: rgba(0, 0, 0, 0.08);
}

.nav-link {
  position: relative;
  z-index: 1;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.825rem;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  transition: color var(--duration-fast) ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Theme Switcher Toggle */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-pill);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
  background: rgba(255, 255, 255, 0.04);
}

.theme-toggle svg {
  width: 15px;
  height: 15px;
}

/* Login CTA Button */
.btn-login {
  background: var(--accent-primary);
  color: #062215;
  font-size: 0.825rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: transform var(--duration-fast) var(--ease-spring),
              background var(--duration-fast) ease,
              box-shadow var(--duration-fast) ease;
  box-shadow: 0 2px 10px var(--accent-primary-glow);
}

.btn-login:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 4px 15px var(--accent-primary-glow);
}

/* ===================================================================
   SECTION 2: APP ICON ROW
=================================================================== */
.section-icon-row {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: var(--space-sm);
  display: flex;
  justify-content: center;
}

.app-icon-container {
  position: relative;
  display: inline-flex;
}

.app-icon-ambient {
  position: absolute;
  inset: -15px;
  background: radial-gradient(circle, var(--accent-primary-glow) 0%, transparent 70%);
  border-radius: 36px;
  filter: blur(12px);
  z-index: 0;
  opacity: 0.8;
  animation: pulse-ambient 4s ease-in-out infinite alternate;
}

@keyframes pulse-ambient {
  0% { transform: scale(0.95); opacity: 0.6; }
  100% { transform: scale(1.08); opacity: 0.9; }
}

.app-icon {
  position: relative;
  z-index: 1;
  width: 76px;
  height: 76px;
  border-radius: 20px;
  background: linear-gradient(145deg, #182230 0%, #0d131c 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 16px 30px -8px rgba(0, 0, 0, 0.6),
              inset 0 1px 1px rgba(255, 255, 255, 0.2);
  display: grid;
  place-items: center;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.app-icon:hover {
  transform: translateY(-2px) scale(1.03);
}

.icon-inner-badge {
  position: absolute;
  bottom: -4px;
  right: -4px;
  background: #24a1de; /* Telegram Blue */
  color: #fff;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 2px solid var(--bg-base);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.icon-inner-badge svg {
  width: 11px;
  height: 11px;
  fill: #fff;
}

/* ===================================================================
   SECTION 3: HERO / DESCRIPTION BLOCK
=================================================================== */
.section-hero {
  text-align: center;
  padding-bottom: var(--space-3xl);
}

.hero-pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-primary-subtle);
  border: 1px solid var(--border-accent);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--accent-primary);
  margin-bottom: var(--space-md);
  letter-spacing: 0.01em;
}

.hero-pill-tag span.dot {
  width: 6px;
  height: 6px;
  background: var(--accent-primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-primary);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-description {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 580px;
  margin: var(--space-md) auto var(--space-xl);
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-2xl);
}

.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, #059669 100%);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  box-shadow: 0 8px 25px -4px var(--accent-primary-glow),
              inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transition: transform var(--duration-fast) var(--ease-spring),
              box-shadow var(--duration-fast) ease,
              filter var(--duration-fast) ease;
}

.btn-cta-primary:hover {
  transform: translateY(-2px) scale(1.015);
  box-shadow: 0 12px 30px -4px var(--accent-primary-glow);
  filter: brightness(1.06);
}

.hero-fine-print {
  font-size: 0.775rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-fine-print span.sep {
  opacity: 0.3;
}

/* Social Proof row */
.hero-social-proof {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  max-width: 620px;
  margin: 0 auto;
}

.proof-avatars-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.avatar-stack {
  display: flex;
  align-items: center;
}

.avatar-item {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--bg-base);
  margin-left: -9px;
  background-size: cover;
  background-position: center;
  position: relative;
  background-color: var(--bg-elevated);
}

.avatar-item:first-child {
  margin-left: 0;
}

.proof-rating-info {
  text-align: left;
}

.rating-stars {
  display: flex;
  align-items: center;
  gap: 2px;
  color: #f59e0b; /* Golden stars */
  font-size: 0.75rem;
}

.rating-text {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.rating-text strong {
  color: var(--text-primary);
  font-weight: 700;
}

.product-hunt-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(218, 85, 47, 0.1);
  border: 1px solid rgba(218, 85, 47, 0.25);
  color: #ea532b;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--duration-fast) ease;
}

.product-hunt-pill:hover {
  background: rgba(218, 85, 47, 0.16);
  transform: translateY(-1px) scale(1.02);
}

.product-hunt-pill svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

/* ===================================================================
   SECTION 4: DUAL-DIRECTION AUTO-SCROLLING CAROUSEL (3:4 CARDS)
=================================================================== */
.section-carousel {
  padding: var(--space-2xl) 0 var(--space-4xl);
  overflow: hidden;
  position: relative;
}

.carousel-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.marquee-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 12%, black 88%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 12%, black 88%, transparent);
}

.marquee-track {
  display: flex;
  gap: var(--space-md);
  width: max-content;
  will-change: transform;
}

.track-left {
  animation: scroll-left 42s linear infinite;
}

.track-right {
  animation: scroll-right 42s linear infinite;
}

.marquee-container:hover .marquee-track {
  animation-play-state: paused;
}

@keyframes scroll-left {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes scroll-right {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

/* 3:4 Aspect Ratio Cards */
.art-card-3-4 {
  width: 180px;
  height: 240px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  transition: transform var(--duration-fast) var(--ease-spring),
              border-color var(--duration-fast) ease,
              box-shadow var(--duration-fast) ease;
  cursor: pointer;
}

.art-card-3-4:hover {
  transform: scale(1.025);
  border-color: var(--border-medium);
  box-shadow: 0 12px 25px -8px rgba(0, 0, 0, 0.5);
}

.art-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--duration-slow) var(--ease-smooth);
}

.art-card-3-4:hover .art-card-img {
  transform: scale(1.04);
}

.art-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 10, 14, 0.92) 0%, rgba(8, 10, 14, 0.2) 50%, transparent 100%);
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 4px;
  opacity: 0.9;
  transition: opacity var(--duration-fast) ease;
}

.art-tag {
  align-self: flex-start;
  font-size: 0.65rem;
  font-weight: 600;
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-primary);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 2px 7px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
}

.art-prompt-preview {
  font-size: 0.725rem;
  font-weight: 500;
  color: #ffffff;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.art-camera-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  color: var(--text-muted);
}

/* ===================================================================
   SECTION 5: 6 CORE FEATURE SQUARES
=================================================================== */
.section-features-grid {
  padding: var(--space-3xl) 0;
}

.grid-features-6 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.feature-square {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 200px;
  transition: transform var(--duration-fast) var(--ease-spring),
              border-color var(--duration-fast) ease,
              background var(--duration-fast) ease;
  position: relative;
  overflow: hidden;
}

.feature-square:hover {
  transform: translateY(-2px) scale(1.015);
  border-color: var(--border-glass);
  background: var(--bg-glass-card-hover);
}

.feature-icon-wrapper {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  display: grid;
  place-items: center;
  color: var(--accent-primary);
  margin-bottom: var(--space-md);
  transition: all var(--duration-fast) ease;
}

.feature-square:hover .feature-icon-wrapper {
  background: var(--accent-primary-subtle);
  border-color: var(--border-accent);
  color: var(--accent-primary-hover);
}

.feature-square:nth-child(2) .feature-icon-wrapper,
.feature-square:nth-child(5) .feature-icon-wrapper {
  color: var(--accent-secondary);
}

.feature-square:nth-child(2):hover .feature-icon-wrapper,
.feature-square:nth-child(5):hover .feature-icon-wrapper {
  background: var(--accent-secondary-subtle);
  border-color: rgba(255, 120, 73, 0.35);
  color: var(--accent-secondary-hover);
}

.feature-title {
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===================================================================
   SECTION 6: STACKING OVERLAPPING FEATURE SECTIONS (SCROLL OVERLAP)
=================================================================== */
.section-stacking {
  padding: var(--space-4xl) 0 var(--space-3xl);
  position: relative;
}

.stacking-cards-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  position: relative;
}

.stack-card-item {
  position: sticky;
  top: 100px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  min-height: 380px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xl);
  align-items: center;
  box-shadow: 0 -10px 30px -10px rgba(0, 0, 0, 0.5);
  transition: transform var(--duration-fast) ease,
              opacity var(--duration-fast) ease;
  overflow: hidden;
}

.stack-card-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
}

.stack-card-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.stack-badge {
  font-size: 0.725rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.stack-card-title {
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  font-weight: 700;
  line-height: 1.25;
}

.stack-card-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.stack-card-btn {
  align-self: flex-start;
  margin-top: var(--space-xs);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 0.825rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-spring);
}

.stack-card-btn:hover {
  background: var(--accent-primary-subtle);
  border-color: var(--border-accent);
  color: var(--accent-primary);
  transform: translateX(3px);
}

.stack-card-visual {
  position: relative;
  height: 100%;
  min-height: 260px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stack-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Visual UI Widgets inside Stacking Cards */
.visual-interactive-badge {
  position: absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
}

.visual-badge-left {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 600;
}

.visual-badge-right {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent-primary);
  font-size: 0.7rem;
}

/* ===================================================================
   SECTION 7: PRICING & CARROTS ("МОРКОВКИ")
=================================================================== */
.section-pricing {
  padding: var(--space-4xl) 0 var(--space-3xl);
  text-align: center;
}

.pricing-manifesto {
  background: radial-gradient(ellipse at top, rgba(255, 120, 73, 0.08) 0%, transparent 70%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  margin: var(--space-xl) 0 var(--space-2xl);
  position: relative;
}

.manifesto-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.manifesto-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto var(--space-md);
  line-height: 1.6;
}

.btn-trial-lead {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent-secondary) 0%, #ea580c 100%);
  color: #fff;
  font-size: 0.925rem;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  box-shadow: 0 8px 20px -4px var(--accent-secondary-glow);
  transition: transform var(--duration-fast) var(--ease-spring),
              box-shadow var(--duration-fast) ease;
}

.btn-trial-lead:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 25px -4px var(--accent-secondary-glow);
}

.pricing-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: left;
  position: relative;
  transition: transform var(--duration-fast) var(--ease-spring),
              border-color var(--duration-fast) ease,
              box-shadow var(--duration-fast) ease;
}

.pricing-card:hover {
  transform: translateY(-3px) scale(1.015);
  border-color: var(--border-glass);
  box-shadow: 0 16px 30px -10px rgba(0, 0, 0, 0.4);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.05) 0%, var(--bg-surface) 100%);
  border-color: rgba(16, 185, 129, 0.28);
}

.pricing-badge-hit {
  position: absolute;
  top: -11px;
  right: 20px;
  background: var(--accent-primary);
  color: #062215;
  font-size: 0.675rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

.pricing-tier-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.pricing-carrots {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.pricing-carrots span.emoji {
  font-size: 1.3rem;
}

.pricing-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: var(--space-md);
}

.pricing-card:nth-child(2) .pricing-price {
  color: var(--accent-secondary);
}

.pricing-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: var(--space-xl);
  font-size: 0.825rem;
  color: var(--text-secondary);
}

.pricing-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.pricing-features-list svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--accent-primary);
  margin-top: 3px;
}

.btn-pricing-buy {
  width: 100%;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  transition: all var(--duration-fast) var(--ease-spring);
}

.btn-pricing-buy:hover {
  background: var(--text-primary);
  color: var(--text-inverse);
  transform: translateY(-1px);
}

.pricing-card.featured .btn-pricing-buy {
  background: var(--accent-primary);
  color: #062215;
  border-color: transparent;
}

.pricing-card.featured .btn-pricing-buy:hover {
  background: var(--accent-primary-hover);
}

/* ===================================================================
   SECTION 8: REVIEWS (4 VERTICAL INFINITE COLUMNS)
=================================================================== */
.section-reviews {
  padding: var(--space-4xl) 0;
  overflow: hidden;
  position: relative;
}

.reviews-viewport {
  height: 520px;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to bottom, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 10%, black 90%, transparent);
  margin-top: var(--space-xl);
}

.reviews-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  height: 100%;
}

.review-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  will-change: transform;
}

.col-up-1 {
  animation: scroll-vertical-up 32s linear infinite;
}

.col-down-2 {
  animation: scroll-vertical-down 36s linear infinite;
}

.col-up-3 {
  animation: scroll-vertical-up 34s linear infinite;
}

.col-down-4 {
  animation: scroll-vertical-down 38s linear infinite;
}

.reviews-viewport:hover .review-column {
  animation-play-state: paused;
}

@keyframes scroll-vertical-up {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

@keyframes scroll-vertical-down {
  0% { transform: translateY(-50%); }
  100% { transform: translateY(0); }
}

.review-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--duration-fast) ease,
              transform var(--duration-fast) ease;
}

.review-card:hover {
  border-color: var(--border-glass);
  transform: scale(1.02);
}

.review-user-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.review-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--bg-elevated);
}

.review-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.review-name {
  font-size: 0.775rem;
  font-weight: 700;
  color: var(--text-primary);
}

.review-handle {
  font-size: 0.675rem;
  color: var(--text-muted);
}

.review-stars {
  display: flex;
  gap: 2px;
  color: #f59e0b;
  font-size: 0.675rem;
}

.review-body {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* ===================================================================
   SECTION 9: FAQ ACCORDION (ФАКЮ)
=================================================================== */
.section-faq {
  padding: var(--space-3xl) 0 var(--space-4xl);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  max-width: 680px;
  margin: var(--space-xl) auto 0;
}

.faq-item {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--duration-fast) ease,
              background var(--duration-fast) ease;
}

.faq-item:hover {
  border-color: var(--border-glass);
  background: var(--bg-glass-card-hover);
}

.faq-item.active {
  border-color: var(--border-glass);
  background: var(--bg-surface);
}

.faq-question-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.925rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  gap: var(--space-md);
}

.faq-chevron {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: transform var(--duration-normal) var(--ease-spring),
              color var(--duration-fast) ease;
  flex-shrink: 0;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent-primary);
}

.faq-answer-pane {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-spring),
              opacity var(--duration-normal) ease;
  opacity: 0;
}

.faq-item.active .faq-answer-pane {
  opacity: 1;
}

.faq-answer-content {
  padding: 0 var(--space-lg) var(--space-md);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================================================================
   SECTION 10: FOOTER
=================================================================== */
.footer-site {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-2xl) 0 var(--space-xl);
  font-size: 0.825rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}

.footer-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--accent-primary);
  font-size: 0.725rem;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
}

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

.footer-links {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast) ease;
}

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

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===================================================================
   TOAST NOTIFICATION (COPY PROMPT)
=================================================================== */
.toast-notice {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-elevated);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 500;
  box-shadow: 0 10px 25px -5px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--duration-normal) var(--ease-spring),
              opacity var(--duration-normal) ease;
}

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

/* ===================================================================
   RESPONSIVE ADAPTATIONS
=================================================================== */
@media (max-width: 768px) {
  :root {
    --space-4xl: 64px;
    --space-3xl: 48px;
  }

  .header-nav {
    display: none; /* Mobile header: logo + theme + button */
  }

  .grid-features-6 {
    grid-template-columns: repeat(2, 1fr);
  }

  .stack-card-item {
    grid-template-columns: 1fr;
    min-height: auto;
    top: 70px;
    gap: var(--space-md);
  }

  .stack-card-visual {
    min-height: 200px;
  }

  .pricing-grid-3 {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .reviews-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .col-up-3, .col-down-4 {
    display: none;
  }
}

@media (max-width: 480px) {
  .grid-features-6 {
    grid-template-columns: 1fr;
  }

  .hero-social-proof {
    flex-direction: column;
    gap: var(--space-sm);
  }
}