/* ===== EG Body Landing — Premium Dark Theme ===== */
@font-face {
  font-family: "Benzin";
  src: url("assets/fonts/benzin-bold.otf") format("opentype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #0d0d0f;
  --bg-elevated: #141418;
  --bg-card: #1a1a1e;
  --text: #f2f2f4;
  --text-muted: #9ca3af;
  --accent: #06b6d4;
  --accent-dim: rgba(6, 182, 212, 0.15);
  --accent-glow: rgba(6, 182, 212, 0.35);
  --border: rgba(255, 255, 255, 0.08);
  --radius: 12px;
  --radius-lg: 20px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: "Benzin", var(--font-sans);
  --transition: 0.25s ease;
  --header-h: 72px;
  --safe-area-bottom: env(safe-area-inset-bottom, 0);
  --safe-area-top: env(safe-area-inset-top, 0);
}

*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
  border-radius: var(--radius);
  transition: top 0.2s;
}
.skip-link:focus {
  top: 1rem;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 480px) {
  .container {
    padding: 0 1.25rem;
  }
}
.container-narrow {
  max-width: 680px;
}

/* ===== Плавающая форма «Тест» — сбоку на десктопе, полноэкранная панель на мобильной ===== */
.side-form-wrap {
  position: fixed;
  top: 50%;
  right: 0;
  z-index: 90;
  transform: translateY(-50%) translateX(100%);
  font-size: 0.9375rem;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.35s ease;
  opacity: 0;
  pointer-events: none;
}
.side-form-wrap.side-form-visible {
  pointer-events: auto;
}
.side-form-wrap.side-form-visible .side-form-toggle {
  pointer-events: auto;
}
.side-form-wrap.is-open {
  pointer-events: auto;
  transform: translateY(-50%) translateX(0);
  opacity: 1;
}
.side-form-wrap.is-open .side-form-panel {
  pointer-events: auto;
}
.side-form-toggle:hover {
  box-shadow: -4px 0 24px rgba(6, 182, 212, 0.2);
}

.side-form-toggle {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  padding: 0.75rem 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: 12px 0 0 12px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), right var(--transition), box-shadow 0.3s ease;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.2);
}
.side-form-toggle:hover {
  background: var(--bg-elevated);
  color: var(--accent);
}

.side-form-panel {
  position: absolute;
  top: 50%;
  right: 0;
  transform: translate(100%, -50%);
  width: 320px;
  max-width: calc(100vw - 2rem);
  max-height: min(85vh, 520px);
  overflow-y: auto;
  padding: 1.5rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-right: none;
  border-radius: 16px 0 0 16px;
  box-shadow: -12px 0 40px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease, visibility 0.25s ease;
  -webkit-overflow-scrolling: touch;
}
.side-form-wrap.is-open .side-form-panel {
  transform: translate(0, -50%);
  opacity: 1;
  visibility: visible;
}

.side-form-close {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 28px;
  height: 28px;
  padding: 0;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--transition);
}
.side-form-close:hover {
  color: var(--text);
}

.side-form-badge {
  margin: 0 0 0.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.side-form-title {
  margin: 0 0 0.35rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
}
.side-form-lead {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.side-form {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  text-align: left;
}
.side-form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}
.side-form-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color var(--transition);
}
.side-form-input:focus {
  outline: none;
  border-color: var(--accent);
}
.side-form-input::placeholder {
  color: var(--text-muted);
  opacity: 0.8;
}
.side-form-btn {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.6rem 1rem;
  font-size: 0.875rem;
  text-align: center;
  text-decoration: none;
}
.side-form-btn-link {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.6rem 1rem;
  font-size: 0.875rem;
  text-align: center;
}
/* Мобильная версия: кнопка «Тест» внизу справа, панель — полноэкранный оверлей, полностью видна */
@media (max-width: 768px) {
  .side-form-wrap {
    top: auto;
    bottom: 1rem;
    left: auto;
    right: 1rem;
    transform: none;
    translate: none;
  }
  .side-form-wrap.is-open {
    transform: none;
  }
  .side-form-wrap.is-open::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    animation: sideFormBackdrop 0.25s ease;
  }
  @keyframes sideFormBackdrop {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  .side-form-toggle {
    position: static;
    transform: none;
    writing-mode: horizontal-tb;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  }
  .side-form-panel {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: none;
    max-height: none;
    margin: 0;
    padding: 3rem 1.25rem 2rem;
    border: none;
    border-radius: 0;
    transform: translate(0, 0) scale(0.95);
    box-shadow: none;
    background: var(--bg);
    overflow-y: auto;
    z-index: 100;
  }
  .side-form-wrap.is-open .side-form-panel {
    transform: translate(0, 0) scale(1);
  }
  .side-form-close {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 101;
    width: 44px;
    height: 44px;
    font-size: 1.5rem;
    color: var(--text);
    background: var(--bg-card);
    border-radius: 50%;
    border: 1px solid var(--border);
  }
}
@media (max-width: 600px) {
  .side-form-wrap {
    bottom: 0.75rem;
    right: 0.75rem;
  }
  .side-form-panel {
    padding: 2.75rem 1rem 1.5rem;
  }
  .side-form-wrap.is-open .side-form-panel {
    transform: translate(0, 0) scale(1);
  }
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(13, 13, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}
.site-header.scrolled {
  background: rgba(13, 13, 15, 0.95);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  color: var(--text);
  text-decoration: none;
}
.logo:hover {
  text-decoration: none;
  color: var(--accent);
}

.nav-list {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.5rem;
}
.nav-list.active {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  padding: 1rem 1.25rem;
  background: rgba(13, 13, 15, 0.98);
  border-bottom: 1px solid var(--border);
  gap: 0.5rem;
}
.nav-list.active .nav-link {
  padding: 0.875rem 0;
  min-height: 44px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  -webkit-tap-highlight-color: transparent;
}
.nav-list.active .nav-link:last-child {
  border-bottom: none;
}
@media (min-width: 900px) {
  .nav-list.active {
    position: static;
    flex-direction: row;
    padding: 0;
    background: transparent;
    border-bottom: none;
  }
  .nav-list.active .nav-link {
    padding: 0;
    border-bottom: none;
  }
}
.nav-link {
  color: var(--text-muted);
  font-size: 0.9375rem;
  text-decoration: none;
  transition: color var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  text-decoration: none;
}

.header-ctas {
  display: none;
  align-items: center;
  gap: 0.5rem;
}
.header-cta {
  white-space: nowrap;
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
  aria-label: "Меню";
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 900px) {
  .nav-list {
    display: flex;
    flex-wrap: nowrap;
    gap: 1.25rem;
    align-items: center;
  }
  .nav-link {
    font-size: 0.875rem;
    white-space: nowrap;
  }
  .header-ctas {
    display: flex;
  }
  .header-cta {
    display: inline-flex;
  }
  .menu-toggle {
    display: none;
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  min-height: 44px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
}
.btn-primary {
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.25s ease;
}
.btn-primary:hover {
  background: #0891b2;
  box-shadow: 0 0 28px var(--accent-glow);
  text-decoration: none;
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
}
/* Лёгкая пульсация главной CTA в hero для привлечения внимания */
.hero-cta .btn-primary {
  animation: ctaGlow 3s ease-in-out infinite;
}
@keyframes ctaGlow {
  0%, 100% { box-shadow: 0 4px 20px var(--accent-dim); }
  50% { box-shadow: 0 4px 28px var(--accent-glow), 0 0 0 1px rgba(6, 182, 212, 0.2); }
}
.hero-cta .btn-primary:hover {
  animation: none;
}
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.25s ease;
}
.btn-outline:hover {
  background: var(--accent-dim);
  text-decoration: none;
  box-shadow: 0 0 24px var(--accent-dim);
  transform: translateY(-1px);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-accent {
  background: var(--accent);
  color: var(--bg);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.25s ease;
}
.btn-accent:hover {
  background: #0891b2;
  box-shadow: 0 0 28px var(--accent-glow);
  text-decoration: none;
  transform: translateY(-2px);
}
.btn-accent:active {
  transform: translateY(0);
}
.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
}
.btn-card {
  width: 100%;
  margin-top: auto;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(6, 182, 212, 0.4);
}
.btn-card-secondary {
  margin-top: 0.5rem;
}
.btn-card:hover {
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
  box-shadow: 0 0 20px var(--accent-dim);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(var(--header-h) + 2rem) 0 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent 70%);
}
.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 120%;
  height: 60%;
  background: radial-gradient(ellipse at center, var(--accent-dim) 0%, transparent 70%);
  opacity: 0.6;
  animation: heroGlowPulse 6s ease-in-out infinite;
}
@keyframes heroGlowPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.75; }
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  min-height: calc(100vh - var(--header-h) - 4rem);
}

.hero-badge {
  font-family: var(--font-heading);
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  border: 1px solid rgba(6, 182, 212, 0.4);
  border-radius: 6px;
  animation: heroBadgeGlow 3s ease-in-out infinite;
}
@keyframes heroBadgeGlow {
  0%, 100% { box-shadow: 0 0 12px rgba(6, 182, 212, 0.15); }
  50% { box-shadow: 0 0 20px rgba(6, 182, 212, 0.3); }
}

.hero-title {
  font-family: var(--font-heading);
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.hero-title-accent {
  display: inline-block;
  color: var(--accent);
  text-shadow: 0 0 40px var(--accent-glow);
  white-space: nowrap;
  font-size: 0.9em;
}
.hero-title-sub {
  font-size: 0.88em;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.hero-lead {
  margin: 0 0 1.75rem;
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 520px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 380px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}
.hero-card-glow {
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent), transparent 50%);
  opacity: 0.4;
  pointer-events: none;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
}
.hero-video-card .hero-video-wrapper {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  max-width: 640px;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.hero-video-el {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-video-wrapper .video-play-btn {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
  border-radius: var(--radius-lg);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
}
.scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  border-radius: 1px;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.5; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

@media (min-width: 900px) {
  .hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
  }
  .hero-content {
    order: 1;
  }
  .hero-visual {
    order: 2;
    justify-content: flex-end;
  }
  .hero-card {
    max-width: 640px;
  }
  .hero-video-card .hero-video-wrapper {
    max-width: 100%;
  }
}

/* ===== Sections ===== */
.section {
  padding: 4rem 0;
}
.section-dark {
  background: var(--bg-elevated);
}
.section-title {
  font-family: var(--font-heading);
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
}
.section-lead {
  margin: 0 auto 2.5rem;
  max-width: 600px;
  font-size: 1.0625rem;
  color: var(--text-muted);
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal.reveal-delay-1 { transition-delay: 0.1s; }
.reveal.reveal-delay-2 { transition-delay: 0.2s; }
.reveal.reveal-delay-3 { transition-delay: 0.3s; }
.reveal.reveal-delay-4 { transition-delay: 0.4s; }
.reveal.reveal-delay-5 { transition-delay: 0.5s; }
.reveal.reveal-scale {
  transform: translateY(20px) scale(0.98);
}
.reveal.reveal-scale.visible {
  transform: translateY(0) scale(1);
}

/* Video sections */
.video-section-badge {
  display: inline-block;
  margin: 0 auto 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-align: center;
  width: 100%;
}
.video-block {
  max-width: 800px;
  margin: 0 auto 2rem;
}
.video-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.5);
}
.video-frame-glow {
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(135deg, var(--accent), transparent 50%);
  opacity: 0.4;
  pointer-events: none;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  animation: videoFrameGlow 4s ease-in-out infinite;
}
@keyframes videoFrameGlow {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.5; }
}
.video-wrapper {
  position: relative;
  border-radius: inherit;
  background: #000;
  aspect-ratio: 16 / 9;
}
.video-el {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: none;
  cursor: pointer;
  transition: background var(--transition);
  z-index: 2;
}
.video-play-btn:hover {
  background: rgba(0, 0, 0, 0.5);
}
.video-play-btn[hidden] {
  display: none !important;
}
.video-play-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.95;
  box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.5);
  animation: playPulse 2s ease-out infinite;
  position: relative;
}
.video-play-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-40%, -50%);
  border: 12px solid transparent;
  border-left-color: var(--bg);
  border-left-width: 20px;
  margin-left: 4px;
}
@keyframes playPulse {
  0% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.5); }
  70% { box-shadow: 0 0 0 18px rgba(6, 182, 212, 0); }
  100% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0); }
}
.section-video .section-lead {
  margin-bottom: 2rem;
}

/* For you */
.for-you-visual {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}
.for-you-img {
  width: 100%;
  max-width: 280px;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  object-fit: cover;
  transition: transform var(--transition), box-shadow var(--transition);
}
.for-you-img:hover {
  transform: scale(1.02);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}
.for-you-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.for-you-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}
.for-you-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-glow);
}
.for-you-note {
  margin: 0;
  padding: 1.5rem 1.75rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1rem;
  color: var(--text);
  line-height: 1.6;
}
.for-you-note strong {
  font-weight: 600;
}

/* Why */
.why-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.why-card {
  padding: 1.5rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  position: relative;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.why-card:hover {
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: 0 0 30px var(--accent-dim);
}
.why-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-bottom: 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 8px;
}
.why-lead {
  font-size: 1.0625rem;
  color: var(--text);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.why-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}
.why-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.why-conclusion {
  padding: 1.75rem 2rem;
  background: var(--accent-dim);
  border: 1px solid rgba(6, 182, 212, 0.28);
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
}
.conclusion-text {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--text);
  line-height: 1.6;
}
.conclusion-text strong {
  color: var(--accent);
}

@media (min-width: 768px) {
  .why-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Principles */
.principles-list {
  margin: 0 0 2rem;
}
.principle-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.principle-item:hover {
  border-color: rgba(6, 182, 212, 0.25);
  box-shadow: 0 0 24px var(--accent-dim);
}
.principle-step {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 10px;
}
.principle-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1.0625rem;
  font-weight: 600;
}
.principle-item p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.55;
}
.format-block {
  padding: 1.5rem 1.75rem;
  background: var(--bg-elevated);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.format-label {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent);
  text-transform: uppercase;
}
.format-block p:last-child {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
}
.format-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.format-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.55;
}
.format-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}
.format-list li + li {
  margin-top: 0.25rem;
}

/* Почему EG — отличия от массажа и ЛФК */
.section-different .section-lead {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.different-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 720px;
  margin-top: 1.5rem;
}
.different-list li {
  position: relative;
  padding: 1rem 0 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.different-list li:last-child {
  border-bottom: none;
}
.different-list li strong {
  color: var(--text);
  font-size: 1rem;
}

/* How it works — 4 горизонтальных видео */
.training-videos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.training-video-item {
  position: relative;
}
.training-video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border);
}
.training-video-el {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.training-video-frame .video-play-btn {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.training-video-frame .video-play-btn[hidden] {
  display: none !important;
}
@media (min-width: 768px) {
  .training-videos-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }
}

/* Results visual */
.results-sub {
  margin: 0 auto 1.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--accent);
  text-align: center;
  letter-spacing: 0.03em;
}
.results-visual {
  margin-bottom: 2rem;
  text-align: center;
}
.results-visual .results-img {
  max-width: 100%;
  width: 100%;
  max-width: 340px;
  height: auto;
  border-radius: 24px;
  border: 1px solid var(--border);
  object-fit: cover;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}
.results-img:hover {
  transform: scale(1.01);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.35);
}

/* Social gallery */
.social-gallery {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.social-gallery-img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--border);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.social-gallery-img:hover {
  transform: scale(1.08);
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-dim);
}

/* Modules */
.modules-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.module-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow 0.4s ease, transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.module-card:hover {
  border-color: rgba(6, 182, 212, 0.4);
  box-shadow: 0 12px 40px var(--accent-dim), 0 0 0 1px rgba(6, 182, 212, 0.1);
  transform: translateY(-4px);
}
.module-card-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 0;
  overflow: hidden;
  text-align: center;
}
.module-card-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}
.module-card-inner .module-title,
.module-card-inner .module-what,
.module-card-inner p,
.module-card-inner .module-result,
.module-card-inner .module-price {
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  text-align: center;
}
.module-card-inner .module-title {
  padding-top: 1rem;
}
.module-card-inner .btn {
  margin: auto auto 1.25rem;
  width: calc(100% - 2.5rem);
  max-width: 220px;
  display: block;
  margin-top: auto;
}
.module-title {
  font-family: var(--font-heading);
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
}
.module-what {
  margin: 0 0 0.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.module-card p {
  margin: 0 0 0.5rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.module-result {
  margin: 0.75rem 0 1rem !important;
  padding: 0.5rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.9375rem;
  color: var(--text);
}
.module-price {
  margin: 0 0 1rem !important;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

@media (min-width: 640px) {
  .modules-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 960px) {
  .modules-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .module-card:last-child {
    grid-column: span 1;
  }
}

/* Bundle */
.bundle-card {
  max-width: 520px;
  margin: 0 auto;
  padding: 2rem 1.75rem;
  background: linear-gradient(145deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-lg);
  box-shadow: 0 0 40px var(--accent-dim);
  text-align: center;
  transition: box-shadow 0.4s ease, transform 0.35s ease, border-color 0.25s ease;
}
.bundle-card:hover {
  box-shadow: 0 8px 48px var(--accent-dim), 0 0 0 1px rgba(6, 182, 212, 0.15);
  border-color: rgba(6, 182, 212, 0.45);
  transform: translateY(-2px);
}
.bundle-badge {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 6px;
}
.bundle-title {
  font-family: var(--font-heading);
  margin: 0 0 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
}
.bundle-desc {
  margin: 0 0 1.5rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.55;
}
.bundle-prices {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  align-items: center;
}
.bundle-old {
  font-size: 0.9375rem;
  color: var(--text-muted);
  text-decoration: line-through;
}
.bundle-new {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}
.bundle-new small {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 0.35rem;
}

/* Results timeline */
.results-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 720px;
  margin: 0 auto;
}
.result-item {
  padding: 1.5rem 1.75rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.result-item:hover {
  border-left-color: var(--accent);
  box-shadow: 0 0 24px var(--accent-dim);
}
.result-days {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}
.result-item p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.55;
}

@media (min-width: 640px) {
  .results-timeline {
    grid-template-columns: repeat(3, 1fr);
  }
  .result-item {
    border-left: none;
    border-top: 3px solid var(--accent);
  }
  .result-item:hover {
    border-top-color: var(--accent);
  }
}

/* Diagnostic lead form */
.section-diagnostic {
  padding: 3rem 0;
}
.diagnostic-card {
  max-width: 440px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
}
.diagnostic-badge {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
}
.diagnostic-title {
  font-family: var(--font-heading);
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  font-weight: 700;
}
.diagnostic-lead {
  margin: 0 0 1.5rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.diagnostic-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}
.diagnostic-label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
}
.diagnostic-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
  -webkit-appearance: none;
  appearance: none;
}
.diagnostic-input::placeholder {
  color: var(--text-muted);
  opacity: 0.8;
}
.diagnostic-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}
.diagnostic-submit {
  width: 100%;
  margin-top: 0.25rem;
}
.diagnostic-submit-secondary {
  width: 100%;
  margin-top: 0.5rem;
}
.diagnostic-note {
  margin: 1rem 0 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.diagnostic-note code {
  font-size: 0.75em;
  padding: 0.1em 0.35em;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
}
.diagnostic-cta-note {
  margin: 1rem 0 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  text-align: center;
}
.diagnostic-link-wrap {
  margin: 0.75rem 0 0;
}
.diagnostic-link {
  font-size: 0.875rem;
  color: var(--text-muted);
}
.diagnostic-link:hover {
  color: var(--accent);
}

/* Блок очных практик в Москве */
.section-booking {
  padding: 2.25rem 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.booking-cta {
  text-align: center;
  max-width: 420px;
  margin: 0 auto;
}
.booking-lead {
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--text);
  margin: 0 0 1.25rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
}
.btn-booking {
  display: inline-block;
}

/* Social / Testimonials */
.social-lead {
  margin: 0 auto 2rem;
  max-width: 560px;
  font-size: 1rem;
  color: var(--text-muted);
  text-align: center;
}
.testimonials {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.testimonial {
  margin: 0;
  padding: 1.5rem 1.75rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.testimonial p {
  margin: 0 0 0.75rem;
  font-style: italic;
  color: var(--text);
}
.testimonial cite {
  font-style: normal;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .testimonials {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Telegram */
.telegram-list {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}
.telegram-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
}
.telegram-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
.section-telegram .btn {
  display: inline-flex;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.about-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: start;
}
.about-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
  border: 1px solid var(--border);
}
.about-img-1 {
  grid-column: 1;
  max-height: 220px;
  object-position: center top;
}
.about-img-2 {
  grid-column: 2;
  margin-top: 1.5rem;
  max-height: 220px;
  object-position: center center;
}
/* На мобильной в «Об авторе»: убираем левую (медицинскую) фотографию, оставляем только одну — в зале */
@media (max-width: 768px) {
  .about-img-1 {
    display: none !important;
    visibility: hidden !important;
  }
  .about-img-2 {
    grid-column: 1 / -1;
    margin-top: 0;
  }
}
.about-content h3 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  font-weight: 700;
}
.about-role {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--accent);
}
.about-content p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.about-links {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}
.about-link-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: opacity var(--transition), transform var(--transition);
  border-radius: 12px;
  overflow: hidden;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.06);
}
.about-link-icon:hover {
  text-decoration: none;
  opacity: 0.85;
  transform: scale(1.08);
  background: rgba(255, 255, 255, 0.1);
}
.about-link-icon img,
.about-icon-img {
  display: block;
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 10px;
}
.about-link-icon .about-icon-wiki {
  filter: invert(1);
  opacity: 0.9;
}
.link-underline:hover {
  text-decoration: underline;
}

@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }
  .about-images {
    grid-template-columns: 1fr;
  }
  .about-img-1, .about-img-2 {
    margin-top: 0;
    max-height: 280px;
  }
}

/* Community */
.community-card {
  max-width: 520px;
  margin: 0 auto;
  padding: 2.5rem 2rem;
  background: var(--bg-card);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-lg);
  box-shadow: 0 0 40px var(--accent-dim);
  text-align: center;
}
.community-logo {
  display: block;
  width: 100%;
  max-width: 200px;
  height: auto;
  margin: 0 auto 1.25rem;
  object-fit: contain;
  border-radius: 16px;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(6, 182, 212, 0.15);
}
.community-badge {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.community-title {
  font-family: var(--font-heading);
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
}
.community-price {
  margin: 0 0 1rem;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
}
.community-desc {
  margin: 0 0 1.5rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* FAQ */
.faq-list {
  margin: 0;
  padding: 0;
}
.faq-item {
  margin-bottom: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item:hover,
.faq-item.open {
  border-color: rgba(6, 182, 212, 0.35);
}
.faq-q {
  margin: 0;
  padding: 1.125rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  list-style: none;
}
.faq-q::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-item.open .faq-q::after {
  transform: rotate(45deg);
}
.faq-a {
  margin: 0;
  padding: 0 1.25rem 1.125rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: none;
}
.faq-item.open .faq-a {
  display: block;
}

/* Footer */
.site-footer {
  padding: 2.5rem 0 2rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.footer-tagline {
  margin: 0.25rem 0 0;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}
.footer-geo {
  margin: 0.5rem 0 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
}
.footer-nav a {
  font-size: 0.9375rem;
  color: var(--text-muted);
}
.footer-nav a:hover {
  color: var(--accent);
}
.footer-copy {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
}
.footer-care {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
}
.footer-care a {
  color: var(--accent);
}
.footer-care a:hover {
  text-decoration: underline;
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* To top */
.to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 50;
  width: 48px;
  height: 48px;
  padding: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: background var(--transition), color var(--transition), transform 0.2s;
}
.to-top:hover {
  background: var(--accent-dim);
  color: var(--accent);
  transform: translateY(-2px);
}
.to-top:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.to-top svg {
  width: 22px;
  height: 22px;
}
.to-top[hidden] {
  display: none !important;
}

/* ===== Mobile-first: доработки для мобильной версии ===== */
@media (max-width: 767px) {
  .site-header {
    padding-top: var(--safe-area-top);
    height: calc(var(--header-h) + var(--safe-area-top));
  }
  .hero {
    padding-top: calc(var(--header-h) + var(--safe-area-top) + 1.25rem);
    padding-bottom: 2.5rem;
    min-height: auto;
  }
  .hero-inner {
    min-height: auto;
    gap: 1.75rem;
  }
  .hero-title {
    font-size: clamp(1.5rem, 5vw, 1.875rem);
    line-height: 1.25;
  }
  .hero-title-accent {
    font-size: 0.82em;
  }
  .hero-lead {
    font-size: 1rem;
    margin-bottom: 1.25rem;
  }
  .hero-cta {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }
  .hero-cta .btn {
    width: 100%;
    justify-content: center;
  }
  .hero-video-card .hero-video-wrapper {
    max-width: 100%;
  }
  .hero-scroll-hint {
    bottom: 0.75rem;
  }
  .section {
    padding: 2.5rem 0;
  }
  .section-title {
    font-size: clamp(1.35rem, 4vw, 1.65rem);
    margin-bottom: 0.5rem;
  }
  .section-lead {
    font-size: 0.9375rem;
    margin-bottom: 1.75rem;
    padding: 0 0.5rem;
  }
  .for-you-list {
    padding-left: 0.5rem;
  }
  .for-you-note {
    padding: 1rem 1.25rem;
    font-size: 0.875rem;
  }
  .why-card {
    padding: 1.25rem;
  }
  .why-conclusion {
    padding: 1.25rem 1.5rem;
  }
  .conclusion-text {
    font-size: 0.9375rem;
  }
  .principle-item {
    padding: 1rem 1.25rem;
    gap: 1rem;
  }
  .principle-item h3,
  .principle-item p {
    font-size: 0.875rem;
  }
  .format-block {
    padding: 1.25rem 1.5rem;
  }
  .training-videos-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .bundle-card,
  .community-card {
    padding: 1.75rem 1.25rem;
  }
  .bundle-title,
  .community-title {
    font-size: 1.35rem;
  }
  .bundle-new,
  .community-price {
    font-size: 1.5rem;
  }
  .results-timeline {
    gap: 1rem;
  }
  .result-item {
    padding: 1.25rem 1.5rem;
  }
  .testimonial {
    padding: 1.25rem 1.5rem;
  }
  .about-grid {
    gap: 1.5rem;
  }
  .about-images {
    gap: 0.75rem;
  }
  .about-img-1,
  .about-img-2 {
    max-height: 200px;
  }
  .about-content h3 {
    font-size: 1.35rem;
  }
  .faq-q {
    padding: 1rem 1.25rem;
    font-size: 0.9375rem;
  }
  .faq-a {
    padding: 0 1.25rem 1rem;
  }
  .diagnostic-card {
    padding: 1.5rem 1.25rem;
  }
  .diagnostic-title {
    font-size: 1.2rem;
  }
  .diagnostic-input {
    min-height: 44px;
  }
  .site-footer {
    padding: 2rem 0;
    padding-bottom: calc(2rem + var(--safe-area-bottom));
  }
  .footer-nav {
    gap: 0.75rem 1rem;
  }
  .to-top {
    bottom: calc(1rem + var(--safe-area-bottom));
    right: 1rem;
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
  }
  .video-play-icon {
    width: 56px;
    height: 56px;
  }
  .video-play-icon::after {
    border: 10px solid transparent;
    border-left-color: var(--bg);
    border-left-width: 16px;
    margin-left: 2px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  .header-inner {
    padding: 0 1rem;
  }
  .hero {
    padding-top: calc(var(--header-h) + var(--safe-area-top) + 1rem);
  }
  .hero-badge {
    font-size: 0.6875rem;
    padding: 0.3rem 0.6rem;
  }
  .training-videos-grid {
    gap: 0.875rem;
  }
  .module-card-inner .btn {
    width: calc(100% - 2rem);
    margin-left: auto;
    margin-right: auto;
  }
  .community-logo {
    max-width: 160px;
  }
  .about-link-icon {
    width: 40px;
    height: 40px;
  }
  .about-link-icon img,
  .about-icon-img {
    width: 32px;
    height: 32px;
  }
}

/* ===== Страница «Все курсы» (courses.html) ===== */
.courses-main {
  padding-top: var(--header-h);
}
.section-courses-hero {
  padding: 2.5rem 0 2rem;
  text-align: center;
}
.courses-page-title {
  font-family: var(--font-heading);
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
}
.courses-page-lead {
  margin: 0;
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.section-courses-list {
  padding-bottom: 3rem;
}
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.course-card:hover {
  border-color: rgba(6, 182, 212, 0.35);
  box-shadow: 0 0 24px var(--accent-dim);
}
.course-card-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.course-card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}
.course-card-body {
  padding: 1.25rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.course-card-title {
  font-family: var(--font-heading);
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
  font-weight: 700;
}
.course-card-desc {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
  flex: 1;
}
.course-card-meta {
  margin: 0 0 0.35rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.course-card-price {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}
.course-card .btn {
  margin-top: auto;
}
.courses-error,
.course-not-found {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}
.courses-error code,
.course-lesson-placeholder code {
  font-size: 0.85em;
  padding: 0.15em 0.4em;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
}
.nav-link-active {
  color: var(--accent);
}

/* ===== Страница одного курса (course.html) ===== */
.course-main {
  padding-top: var(--header-h);
}
#course-root[hidden],
#course-not-found[hidden],
#course-load-error[hidden] {
  display: none !important;
}
.course-hero {
  padding: 2rem 0 2.5rem;
}
.course-back {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.course-back:hover {
  color: var(--accent);
  text-decoration: none;
}
.course-hero-img {
  width: 100%;
  max-width: 640px;
  height: auto;
  border-radius: var(--radius-lg);
  margin-bottom: 1.25rem;
  display: block;
}
.course-title {
  font-family: var(--font-heading);
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
}
.course-meta {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}
.course-desc {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
}
.course-lessons {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--border);
}
.course-lessons-heading {
  font-family: var(--font-heading);
  margin: 0 0 1.5rem;
  font-size: 1.35rem;
  font-weight: 700;
}
.course-lessons-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.course-lesson {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}
.course-lesson:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.course-lesson-title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 600;
}
.course-lesson-duration {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.9em;
}
.course-lesson-video {
  position: relative;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  aspect-ratio: 16 / 9;
}
.course-lesson-video iframe,
.course-lesson-video video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}
.course-lesson-video-youtube iframe {
  pointer-events: auto;
}
.course-lesson-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: var(--bg-elevated);
  min-height: 200px;
  aspect-ratio: auto;
}
.course-lesson-placeholder p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
  max-width: 480px;
}

/* Блок «Вступление» — отдельная вывеска */
.course-intro {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
}
.course-intro-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
  padding: 0.35em 0.75em;
  background: rgba(6, 182, 212, 0.12);
  border-radius: 4px;
}
.course-intro-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin: 0 0 1rem;
  line-height: 1.3;
}
.course-intro-desc {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
}
.course-intro .course-lesson-video {
  margin-top: 0;
}

/* Уроки с типом: объяснение / практика */
.course-lesson-head {
  margin-bottom: 0.5rem;
}
.course-lesson-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.25em 0.6em;
  border-radius: 4px;
}
.course-lesson-badge--explanation {
  color: var(--accent);
  background: rgba(6, 182, 212, 0.15);
}
.course-lesson-badge--practice {
  color: var(--success, #0d9488);
  background: rgba(13, 148, 136, 0.15);
}
.course-lesson--explanation {
  padding-left: 0.5rem;
  border-left: 3px solid rgba(6, 182, 212, 0.4);
}
.course-lesson--practice {
  padding-left: 0.5rem;
  border-left: 3px solid rgba(13, 148, 136, 0.4);
}

@media (max-width: 768px) {
  .courses-grid {
    grid-template-columns: 1fr;
  }
}