/* ============================================================
   ОБЛАКО КНИГ — styles.css
   Design system: Monochrome Precision meets Sky Imagery
   Version: 1.0
   ============================================================ */

/* ─── CSS Custom Properties ─────────────────────────────── */
:root {
  /* Colors */
  --color-sky-deep:    #0D1B2A;
  --color-sky-dark:    #1A2332;
  --color-sky-mid:     #2C3E55;
  --color-sky-blue:    #2C6B9A;
  --color-cloud-blue:  #7EC8E3;
  --color-cloud-light: #B8DFEE;
  --color-sky-pale:    #EEF6FB;
  --color-white:       #FFFFFF;
  --color-off-white:   #F0F8FF;

  /* Accent */
  --color-btn-primary: #1A3A5C;
  --color-coin:        #F5C842;
  --color-coin-dark:   #E8A800;

  /* Text */
  --color-text-primary:   #1A2332;
  --color-text-secondary: #4A5568;
  --color-text-muted:     #718096;
  --color-text-light:     #A0AEC0;

  /* Semantic */
  --color-earn:  #27AE60;
  --color-spend: #E74C3C;
  --color-earn-bg:  #EAFAF1;
  --color-spend-bg: #FDEDEC;

  /* Gradients */
  --gradient-hero:    linear-gradient(165deg, rgba(13,27,42,0.90) 0%, rgba(26,58,92,0.76) 38%, rgba(44,107,154,0.46) 68%, rgba(74,144,184,0.12) 100%);
  --gradient-sky:     linear-gradient(180deg, #EEF6FB 0%, #FFFFFF 100%);
  --gradient-monetka: linear-gradient(135deg, #1A3A5C 0%, #2C6B9A 100%);
  --gradient-cta:     linear-gradient(135deg, #2C6B9A 0%, #4A90B8 50%, #7EC8E3 100%);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs:   0.75rem;   /* 12px */
  --font-size-sm:   0.875rem;  /* 14px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-md:   1.125rem;  /* 18px */
  --font-size-lg:   1.25rem;   /* 20px */
  --font-size-xl:   1.5rem;    /* 24px */
  --font-size-2xl:  2rem;      /* 32px */
  --font-size-3xl:  2.5rem;    /* 40px */
  --font-size-4xl:  3.25rem;   /* 52px */
  --font-size-5xl:  4rem;      /* 64px */

  /* Spacing (8px grid) */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* Border radius */
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-xl:   28px;
  --radius-pill: 100px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.06);
  --shadow-sky: 0 8px 32px rgba(26,58,92,.30);
  --shadow-coin: 0 8px 24px rgba(245,200,66,.35);

  /* Transitions */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:   cubic-bezier(0.7, 0, 0.84, 0);
  --duration-fast:   150ms;
  --duration-base:   250ms;
  --duration-slow:   400ms;

  /* Layout */
  --max-width: 1200px;
  --header-h:  72px;
  --section-py: var(--space-24);
}

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
details > summary { cursor: pointer; list-style: none; }
details > summary::-webkit-details-marker { display: none; }

/* ─── Focus styles (a11y) ────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-sky-blue);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ─── Skip link ──────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-sky-blue);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 1000;
}
.skip-link:focus { top: var(--space-4); }

/* ─── Container ──────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* ─── Typography helpers ─────────────────────────────────── */
.section-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #7EC8E3;
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-sky-dark);
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin-inline: auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header--left {
  text-align: left;
  margin-bottom: var(--space-8);
}
.section-header--left .section-desc { margin-inline: 0; }

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              background-color var(--duration-fast),
              color var(--duration-fast);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--duration-fast);
  border-radius: inherit;
}

.btn:hover::after { background: rgba(255,255,255,.08); }
.btn:active { transform: scale(.97); }
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: #1A3A5C;
  color: var(--color-white);
  box-shadow: 0 8px 32px rgba(26,58,92,.32);
}
.btn-primary:hover {
  background: #0F2A4A;
  box-shadow: 0 12px 40px rgba(26,58,92,.50);
}

.btn-secondary {
  background: var(--color-sky-pale);
  color: var(--color-sky-blue);
  border: 1.5px solid var(--color-cloud-blue);
}
.btn-secondary:hover {
  background: var(--color-cloud-light);
  border-color: var(--color-sky-blue);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-sky-blue);
  box-shadow: var(--shadow-md);
}
.btn-white:hover { background: var(--color-sky-pale); }

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,.5);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,.1);
  border-color: white;
}

.btn-sm {
  padding: 10px 20px;
  font-size: var(--font-size-sm);
}

/* ─── Site Header ────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(74,144,184,.12);
  transition: box-shadow var(--duration-base);
}

.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,.08);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: var(--space-8);
}

.logo { flex-shrink: 0; }
.logo img { height: 44px; width: auto; }

.nav-main { flex: 1; }
.nav-list {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.nav-link {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast), background var(--duration-fast);
}
.nav-link:hover {
  color: #2C6B9A;
  background: var(--color-sky-pale);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Burger */
.burger-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}
.burger-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-sky-dark);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-fast);
}
.burger-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(20px);
  padding: var(--space-8) var(--space-6);
  z-index: 99;
  animation: slideDown var(--duration-slow) var(--ease-out);
}
.mobile-menu[hidden] { display: none; }
.mobile-nav-list { display: flex; flex-direction: column; gap: var(--space-2); }
.mobile-nav-link {
  display: block;
  padding: var(--space-4) var(--space-2);
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-sky-pale);
  transition: color var(--duration-fast), padding-left var(--duration-base);
}
.mobile-nav-link:hover {
  color: var(--color-sky-blue);
  padding-left: var(--space-4);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── HERO ───────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  background:
    var(--gradient-hero),
    url("assets/hero-bg.jpg") center 30% / cover no-repeat;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.hero-bg-texture {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.hero-bg-texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  mix-blend-mode: screen;
}

.cloud-parallax {
  will-change: transform;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
  flex: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  color: var(--color-cloud-blue);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-6);
  backdrop-filter: blur(8px);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7EC8E3;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.05;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}

.hero-accent {
  color: var(--color-cloud-blue);
  position: relative;
}

.hero-subtitle {
  font-size: var(--font-size-md);
  color: rgba(255,255,255,.80);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 440px;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.hero-microcopy {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.60);
}

/* Hero Visual */
.hero-visual { position: relative; }

.hero-preview-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: visible;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}
@media (prefers-reduced-motion: reduce) {
  @keyframes float { 0%, 100% { transform: none; } }
}

.hero-preview {
  border-radius: var(--radius-lg);
  box-shadow: 0 32px 80px rgba(0,0,0,.35), 0 8px 24px rgba(0,0,0,.2);
  width: 100%;
  height: auto;
}

.hero-float-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: white;
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  box-shadow: var(--shadow-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-sky-dark);
  white-space: nowrap;
  animation: floatBadge 5s ease-in-out infinite;
}

.float-badge-1 {
  top: 16%;
  right: -24px;
  animation-delay: 0.5s;
}

.float-badge-2 {
  bottom: 18%;
  left: -24px;
  animation-delay: 1.5s;
}

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

/* Scroll cue */
.scroll-cue {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding-bottom: var(--space-8);
  color: rgba(255,255,255,.5);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scroll-cue-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,.4));
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ─── STATS BAR ──────────────────────────────────────────── */
.stats-bar {
  background: var(--color-sky-pale);
  border-bottom: 1px solid rgba(74,144,184,.12);
  padding: var(--space-6) 0;
}

.stats-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2px;
}

.stat-num {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: #2C6B9A;
  line-height: 1.1;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(74,144,184,.2);
}

/* ─── SITUATIONS ─────────────────────────────────────────── */
.situations {
  padding: var(--section-py) 0;
  background: var(--color-white);
}

.situations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.situation-card {
  background: var(--color-sky-pale);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid rgba(74,144,184,.1);
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.situation-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.situation-emoji {
  font-size: 2.5rem;
  line-height: 1;
}

.situation-problem {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  font-style: italic;
  line-height: 1.5;
}

.situation-arrow {
  display: flex;
  align-items: center;
  color: var(--color-cloud-blue);
}

.situation-solution {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-sky-dark);
  line-height: 1.5;
}

/* ─── AUDIENCE ───────────────────────────────────────────── */
.audience {
  padding: var(--section-py) 0;
  background: var(--gradient-sky);
}

/* Tabs */
.audience-tabs {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
  background: var(--color-white);
  border-radius: var(--radius-pill);
  padding: var(--space-2);
  box-shadow: var(--shadow-sm);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  transition: background var(--duration-base) var(--ease-out),
              color var(--duration-base),
              box-shadow var(--duration-base);
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--color-sky-blue);
  background: var(--color-sky-pale);
}

.tab-btn.active {
  background: #2C6B9A;
  color: var(--color-white);
  box-shadow: 0 8px 24px rgba(44,107,154,.35);
}

/* Audience panels */
.audience-panel { display: none; }
.audience-panel.active { display: block; }

.audience-cards-grid {
  display: flex;
  justify-content: center;
}

.audience-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(74,144,184,.1);
  max-width: 640px;
  width: 100%;
  animation: fadeInUp var(--duration-slow) var(--ease-out);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.audience-card-icon {
  margin-bottom: var(--space-6);
  width: 64px;
  height: 64px;
}

.audience-card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-sky-dark);
  margin-bottom: var(--space-3);
}

.audience-card-desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.audience-card-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.audience-card-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  padding-left: var(--space-6);
  position: relative;
}

.audience-card-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-sky-pale);
  border: 2px solid #7EC8E3;
  flex-shrink: 0;
}

/* Audience FAQ */
.audience-card-faq {
  margin-bottom: var(--space-6);
}

.audience-card-faq details {
  border-top: 1px solid var(--color-sky-pale);
  padding-top: var(--space-4);
}

.audience-card-faq summary {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: #2C6B9A;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.audience-card-faq summary::before {
  content: '?';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-sky-pale);
  font-size: 11px;
  font-weight: 700;
  color: #7EC8E3;
  flex-shrink: 0;
}

.audience-card-faq details[open] summary { margin-bottom: var(--space-3); }
.audience-card-faq p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ─── HOW IT WORKS ───────────────────────────────────────── */
.how-it-works {
  padding: var(--section-py) 0;
  background: var(--color-white);
}

.hiw-tabs-row {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-12);
}

.hiw-switcher {
  display: flex;
  background: var(--color-sky-pale);
  border-radius: var(--radius-pill);
  padding: var(--space-1);
  gap: var(--space-1);
}

.hiw-tab {
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  transition: all var(--duration-base) var(--ease-out);
}

.hiw-tab.active {
  background: var(--color-white);
  color: var(--color-sky-dark);
  box-shadow: var(--shadow-sm);
}

.hiw-tab:hover:not(.active) { color: var(--color-sky-blue); }

.hiw-panel { display: none; animation: fadeInUp var(--duration-slow) var(--ease-out); }
.hiw-panel.active { display: block; }

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: var(--space-4);
  align-items: center;
  margin-bottom: var(--space-12);
}

.step-card {
  background: var(--color-sky-pale);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid rgba(74,144,184,.1);
  position: relative;
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.step-number {
  position: absolute;
  top: -14px;
  left: var(--space-8);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #2C6B9A;
  color: white;
  font-size: var(--font-size-sm);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sky);
}

.step-icon { margin-bottom: var(--space-4); }

.step-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-sky-dark);
  margin-bottom: var(--space-3);
}

.step-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.step-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-cloud-blue);
  flex-shrink: 0;
}

.hiw-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── MONETKA ────────────────────────────────────────────── */
.monetka {
  padding: var(--section-py) 0;
  background: var(--gradient-monetka);
  position: relative;
  overflow: hidden;
}

.monetka-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 60% 40% at 80% 30%, rgba(126,200,227,.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 10% 70%, rgba(74,144,184,.15) 0%, transparent 60%);
  pointer-events: none;
}

.monetka-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.monetka-inner .section-label { color: var(--color-cloud-light); }
.monetka-inner .section-title { color: var(--color-white); }
.monetka-inner .section-desc { color: rgba(255,255,255,.70); }

.monetka-earn-spend {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-6);
  align-items: start;
  margin-bottom: var(--space-8);
}

.monetka-block-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-base);
  font-weight: 700;
  color: rgba(255,255,255,.90);
  margin-bottom: var(--space-4);
}

.monetka-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.monetka-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: rgba(255,255,255,.08);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,.1);
  backdrop-filter: blur(4px);
}

.monetka-amount {
  font-size: var(--font-size-sm);
  font-weight: 800;
  color: var(--color-coin);
  min-width: 32px;
  text-align: right;
  flex-shrink: 0;
}

.monetka-amount.spend { color: #FF8A80; }

.monetka-desc {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.80);
}

.coin-big {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.coin-glow {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-coin);
  filter: blur(24px);
  opacity: 0.4;
  animation: coinPulse 3s ease-in-out infinite;
}
@keyframes coinPulse {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.3); opacity: 0.6; }
}

/* Monetka FAQ */
.monetka-faq {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.monetka-faq details {
  padding: var(--space-4);
  background: rgba(255,255,255,.08);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,.12);
}

.monetka-faq summary {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-cloud-light);
}

.monetka-faq details[open] p {
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.70);
  line-height: 1.6;
}

/* Monetka card preview */
.monetka-card-preview {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: 0 32px 80px rgba(0,0,0,.3);
  max-width: 380px;
  width: 100%;
  margin-left: auto;
}

.mcp-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
}

.mcp-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mcp-date {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

.mcp-balance {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--color-sky-pale);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-6);
}

.mcp-balance-num {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-sky-dark);
  line-height: 1;
}

.mcp-balance-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  align-self: flex-end;
  padding-bottom: 2px;
}

.mcp-transactions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.mcp-tx {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  gap: var(--space-3);
}

.mcp-tx.earn { background: var(--color-earn-bg); }
.mcp-tx.spend { background: var(--color-spend-bg); }

.mcp-tx-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mcp-tx-amount {
  font-size: var(--font-size-sm);
  font-weight: 700;
  flex-shrink: 0;
}
.mcp-tx.earn .mcp-tx-amount { color: var(--color-earn); }
.mcp-tx.spend .mcp-tx-amount { color: var(--color-spend); }

.mcp-footer {
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(90deg, #FFF9E6 0%, #FFF3CC 100%);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: #8B5E00;
  font-weight: 500;
}

/* ─── FAQ ────────────────────────────────────────────────── */
.faq {
  padding: var(--section-py) 0 var(--space-16);
  background: var(--color-sky-pale);
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  max-width: 900px;
  margin-inline: auto;
}

.faq-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(74,144,184,.1);
  transition: box-shadow var(--duration-base);
}

.faq-item[open] { box-shadow: var(--shadow-md); }

.faq-question {
  padding: var(--space-5) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-sky-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  user-select: none;
}

.faq-question::after {
  content: '+';
  font-size: var(--font-size-xl);
  font-weight: 300;
  color: var(--color-sky-blue);
  flex-shrink: 0;
  transition: transform var(--duration-base) var(--ease-out);
  line-height: 1;
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 var(--space-6) var(--space-5);
}

.faq-answer p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ─── CTA BANNER ─────────────────────────────────────────── */
.cta-banner {
  padding: var(--space-20) 0;
  background: var(--gradient-cta);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-banner-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 50% 60% at 20% 50%, rgba(255,255,255,.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 80% 50%, rgba(255,255,255,.06) 0%, transparent 60%);
  pointer-events: none;
}

.cta-banner-inner { position: relative; z-index: 1; }

.cta-banner-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta-banner-desc {
  font-size: var(--font-size-md);
  color: rgba(255,255,255,.80);
  margin-bottom: var(--space-8);
}

.cta-banner-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.cta-banner-microcopy {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.60);
}

/* ─── FOOTER ─────────────────────────────────────────────── */
.site-footer {
  background: var(--color-sky-deep);
  color: rgba(255,255,255,.80);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-16);
  padding-top: var(--space-16);
  padding-bottom: var(--space-12);
}

.footer-brand .logo img { filter: brightness(0) invert(1); opacity: 0.9; }

.footer-tagline {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.50);
  margin-top: var(--space-4);
  margin-bottom: var(--space-5);
  line-height: 1.5;
}


.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.footer-nav-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.55);
  transition: color var(--duration-fast);
}
.footer-link:hover { color: var(--color-cloud-blue); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copy { font-size: var(--font-size-sm); color: rgba(255,255,255,.40); }

.footer-legal {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-link-small {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,.35);
  transition: color var(--duration-fast);
}
.footer-link-small:hover { color: rgba(255,255,255,.70); }

/* ─── BACK TO TOP ────────────────────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 50;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #2C6B9A;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sky);
  transition: opacity var(--duration-base), transform var(--duration-base) var(--ease-out);
  opacity: 0;
}

.back-to-top:not([hidden]) { opacity: 1; }
.back-to-top:hover { transform: translateY(-3px); }

/* ─── RESPONSIVE ─────────────────────────────────────────── */

/* Tablet: ≤1024px */
@media (max-width: 1024px) {
  :root {
    --section-py: var(--space-20);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: var(--space-16);
    gap: var(--space-12);
  }

  .hero-title { font-size: var(--font-size-4xl); }

  .hero-actions, .hero-microcopy {
    justify-content: center;
  }

  .hero-subtitle { margin-inline: auto; }

  .hero-visual { display: flex; justify-content: center; }
  .hero-preview { max-width: 480px; }
  .float-badge-1 { right: -8px; }
  .float-badge-2 { left: -8px; }

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

  .steps-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .step-connector { display: none; }

  .monetka-inner { grid-template-columns: 1fr; gap: var(--space-12); }
  .monetka-card-preview { margin-inline: auto; }

  .monetka-earn-spend {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .monetka-earn-spend .coin-big {
    grid-row: 1;
    grid-column: 1 / -1;
    justify-self: center;
  }

  .footer-inner { grid-template-columns: 1fr; gap: var(--space-10); }
  .footer-nav { grid-template-columns: repeat(3, 1fr); }

  .section-title { font-size: var(--font-size-2xl); }
}

/* Mobile: ≤768px */
@media (max-width: 768px) {
  :root {
    --section-py: var(--space-16);
  }

  .nav-main { display: none; }
  .burger-btn { display: flex; }

  .hero-title { font-size: var(--font-size-3xl); }

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

  .audience-tabs {
    padding: var(--space-1);
  }
  .tab-btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
  }
  .tab-btn img { display: none; }

  .audience-card { padding: var(--space-6); }

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

  .monetka-earn-spend {
    grid-template-columns: 1fr;
  }
  .monetka-earn-spend .coin-big {
    grid-row: auto;
    grid-column: auto;
  }

  .stats-inner { gap: var(--space-4); }
  .stat-divider { display: none; }

  .footer-nav { grid-template-columns: 1fr 1fr; }

  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .footer-legal { justify-content: center; }

  .cta-banner-title { font-size: var(--font-size-2xl); }

  .hero-float-badge { display: none; }
}

/* Small mobile: ≤480px */
@media (max-width: 480px) {
  .container { padding-inline: var(--space-4); }

  .hero-title { font-size: var(--font-size-2xl); }

  .hero-actions { flex-direction: column; align-items: center; }

  .footer-nav { grid-template-columns: 1fr; }

  .hiw-tab { padding: var(--space-2) var(--space-4); }

  .section-title { font-size: var(--font-size-xl); }

  .mcp-balance-num { font-size: var(--font-size-2xl); }
}

/* ─── Print ──────────────────────────────────────────────── */
@media print {
  .site-header, .mobile-menu, .back-to-top,
  .hero-float-badge, .scroll-cue { display: none; }
  body { color: black; background: white; }
  a[href]::after { content: ' (' attr(href) ')'; }
}

/* Tablet: ≤1024px */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 3rem;
    --font-size-4xl: 2.5rem;
    --font-size-3xl: 2rem;
    --section-py: var(--space-16);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-12);
    text-align: center;
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }

  .hero-subtitle { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-microcopy { justify-content: center; }
  .hero-visual { display: flex; justify-content: center; }
  .hero-preview-wrapper { max-width: 480px; }

  .float-badge-1 { right: 0; top: 8%; }
  .float-badge-2 { left: 0; bottom: 8%; }

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

  .monetka-inner { grid-template-columns: 1fr; gap: var(--space-10); }
  .monetka-card-preview { margin-inline: auto; }

  .footer-inner { grid-template-columns: 1fr; gap: var(--space-10); }
  .footer-nav { grid-template-columns: repeat(3, 1fr); }

  .steps-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .step-connector { transform: rotate(90deg); }
}

/* Mobile: ≤768px */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.5rem;
    --section-py: var(--space-12);
  }

  .nav-main { display: none; }
  .burger-btn { display: flex; }

  .hero-title { font-size: var(--font-size-5xl); letter-spacing: -0.01em; }

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

  .audience-tabs {
    flex-direction: column;
    border-radius: var(--radius-xl);
    gap: var(--space-1);
  }
  .tab-btn { justify-content: flex-start; }

  .audience-card { padding: var(--space-6); }

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

  .cta-banner-title { font-size: var(--font-size-2xl); }

  .footer-nav { grid-template-columns: 1fr 1fr; gap: var(--space-6); }

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

  .stats-inner { gap: var(--space-5); }
  .stat-divider { display: none; }

  .monetka-earn-spend { grid-template-columns: 1fr; gap: var(--space-4); }
  .coin-big, .coin-glow { display: none; }

  .hiw-tab { padding: var(--space-3) var(--space-4); font-size: var(--font-size-xs); }
}

/* Small mobile: ≤480px */
@media (max-width: 480px) {
  .container { padding-inline: var(--space-4); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { text-align: center; }
  .cta-banner-actions { flex-direction: column; align-items: center; }
  .footer-nav { grid-template-columns: 1fr; }
  .footer-legal { flex-direction: column; gap: var(--space-3); }
  .hero-float-badge { display: none; }
}

/* ─── Print ──────────────────────────────────────────────── */
@media print {
  .site-header,
  .hero-float-badge,
  .scroll-cue,
  .back-to-top,
  .burger-btn { display: none; }
  body { color: black; background: white; }
}


/* ─── CTA FINAL ──────────────────────────────────────────── */
.cta-final {
  position: relative;
  padding: var(--space-20) 0;
  background: var(--gradient-cta);
  overflow: hidden;
  text-align: center;
}

.cta-final-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 50% 60% at 20% 50%, rgba(255,255,255,.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 80% 50%, rgba(255,255,255,.05) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.cta-final-cloud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.cta-final-cloud img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
  mix-blend-mode: overlay;
}

.cta-final-inner {
  position: relative;
  z-index: 1;
}

.cta-final-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: var(--space-4);
  line-height: 1.15;
}

.cta-final-desc {
  font-size: var(--font-size-md);
  color: rgba(255,255,255,.80);
  margin-bottom: var(--space-8);
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.cta-final-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.cta-final-microcopy {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.50);
}

.btn-lg {
  padding: 18px 36px;
  font-size: var(--font-size-md);
}

@media (max-width: 480px) {
  .cta-final-actions { flex-direction: column; align-items: center; }
  .btn-lg { width: 100%; max-width: 280px; }
}