/* ============================================================
   Дизайн-система v3 — Медицинская конференция ВППС
   Шрифты: Manrope (все тексты) + IBM Plex Mono (оверлайны)
   Палитра: холодный синий, brand #1668d6
   ============================================================ */

/* ============================================================
   АНИМАЦИИ
   ============================================================ */
@keyframes beat {
  0%,100% { transform: scale(1); }
  8%       { transform: scale(1.035); }
  16%      { transform: scale(1); }
  24%      { transform: scale(1.02); }
  34%      { transform: scale(1); }
}
@keyframes spin   { to { transform: rotate(360deg); } }
@keyframes drift  { 0%,100% { transform: translateX(0); } 50% { transform: translateX(14px); } }
@keyframes dash   { to { stroke-dashoffset: -320; } }
@keyframes glow   { 0%,100% { opacity: .35; transform: scale(1); } 50% { opacity: .6; transform: scale(1.06); } }
@keyframes ctaPulse {
  0%,100% { box-shadow: 0 6px 18px rgba(22,104,214,.28); }
  50%     { box-shadow: 0 10px 30px rgba(22,104,214,.50); }
}

/* ============================================================
   ТОКЕНЫ ДИЗАЙНА
   ============================================================ */
:root {
  /* Шрифты */
  --font-sans:  'Manrope', system-ui, sans-serif;
  --font-serif: 'Manrope', system-ui, sans-serif;
  --font-mono:  'IBM Plex Mono', monospace;

  /* Типографическая шкала */
  --text-xs:   11px;
  --text-sm:   13px;
  --text-base: 14.5px;
  --text-md:   15px;
  --text-lg:   17px;
  --text-xl:   20px;
  --text-2xl:  27px;
  --text-hero: clamp(28px, 4vw, 37px);
  --text-h2:   clamp(22px, 3vw, 31px);
  --text-h3:   clamp(16px, 2vw, 20px);

  /* Поверхности */
  --c-bg:      #eef4fb;
  --c-surface: #ffffff;
  --c-white:   #ffffff;

  /* Текст */
  --c-text:       #0f3f75;
  --c-text-2:     #3c5f83;
  --c-text-muted: #7b9bbd;
  --c-text-inv:   #ffffff;
  --c-text-inv-2: rgba(255, 255, 255, 0.82);

  /* Границы */
  --c-border:       #d6e3f2;
  --c-border-light: #e6eff9;
  --c-border-inv:   rgba(255, 255, 255, 0.18);

  /* Бренд */
  --c-brand:       #1668d6;
  --c-brand-dark:  #0f4fa8;
  --c-brand-tint:  #e8f1fd;
  --c-brand-tint2: #dbeaff;

  /* Семантика */
  --c-success: #276B40;
  --c-danger:  #B91C1C;
  --c-warning: #b45309;

  /* Геометрия */
  --radius-xs:   4px;
  --radius-sm:   8px;
  --radius:      10px;
  --radius-lg:   16px;
  --radius-xl:   18px;
  --radius-2xl:  22px;
  --radius-pill: 9999px;

  /* Лэйаут */
  --nav-h:         64px;
  --container-max: 1180px;
  --container-pad: 32px;
  --section-pad:   80px;

  /* Отступы */
  --sp-xs:  8px;
  --sp-sm:  16px;
  --sp-md:  24px;
  --sp-lg:  40px;
  --sp-xl:  64px;
  --sp-2xl: 96px;

  /* Тени */
  --shadow-xs:    0 1px 4px rgba(16, 58, 110, 0.05);
  --shadow-sm:    0 2px 8px rgba(16, 58, 110, 0.08);
  --shadow-md:    0 3px 18px rgba(16, 58, 110, 0.07);
  --shadow-lg:    0 8px 36px rgba(16, 58, 110, 0.12);
  --shadow-hover: 0 12px 30px rgba(16, 58, 110, 0.16);
  --shadow-brand: 0 6px 18px rgba(22, 104, 214, 0.28);

  /* Переходы */
  --t-fast:  0.15s ease;
  --t-base:  0.25s ease;
  --t-slow:  0.35s ease;
  --t-curve: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================================
   СБРОС + BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--c-text);
  background-color: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: var(--nav-h);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 800;
  line-height: 1.2;
  color: var(--c-text);
  margin: 0;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

img { max-width: 100%; height: auto; }

hr {
  border: 0;
  height: 1px;
  background: var(--c-border-light);
  margin: 0;
}

a {
  color: var(--c-brand);
  text-decoration: none;
  transition: color var(--t-fast);
}
a:hover {
  color: var(--c-brand-dark);
  text-decoration: underline;
}

/* Контейнер */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

@media (max-width: 640px) { .container { padding: 0 20px; } }

/* ============================================================
   ТИПОГРАФИКА
   ============================================================ */
.t-overline,
.section__overline {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin-bottom: 14px;
}

.section__title {
  font-size: var(--text-h2);
  font-weight: 800;
  line-height: 1.15;
  color: var(--c-text);
}

/* Декоративная полоска — убираем из handoff-стиля */
.section__rule { display: none; }

/* SVG пульс-декор — убираем */
.section__pulse { display: none; }

/* ============================================================
   КНОПКИ
   ============================================================ */
.btn, .btn-primary, .btn-danger, .btn-success,
.btn-info, .btn-warning, .btn-large, .btn-small,
.btn-mini, .btn-group > .btn {
  all: unset;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 26px;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  border-radius: var(--radius-pill);
  border: none;
  background-color: var(--c-surface);
  color: var(--c-text);
  transition:
    background-color var(--t-base),
    color var(--t-base),
    transform var(--t-base),
    box-shadow var(--t-base);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  box-shadow: 0 2px 10px rgba(16,58,110,.10);
}

.btn:hover, .btn:focus {
  background-color: #f0f5ff;
  color: var(--c-text);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(16,58,110,.14);
}
.btn:active { transform: translateY(0) scale(.97); }

.btn.disabled, .btn[disabled] {
  opacity: 0.5;
  cursor: default;
  pointer-events: none;
}

/* Primary */
.btn-primary {
  background-color: var(--c-brand);
  color: #fff;
  border: none;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover, .btn-primary:focus {
  background-color: var(--c-brand-dark);
  color: #fff;
  box-shadow: 0 8px 20px rgba(22,104,214,.35);
}
.btn-primary:active { transform: translateY(-1px) scale(.98); }
.btn-primary.disabled, .btn-primary[disabled] {
  background-color: var(--c-brand);
  color: #fff;
}

/* Success */
.btn-success {
  background-color: var(--c-success);
  color: #fff;
}
.btn-success:hover, .btn-success:focus,
.btn-success.disabled, .btn-success[disabled] {
  background-color: #1f5432;
  color: #fff;
}

/* Danger */
.btn-danger {
  background-color: var(--c-danger);
  color: #fff;
}
.btn-danger:hover, .btn-danger:focus,
.btn-danger.disabled, .btn-danger[disabled] {
  background-color: #991b1b;
  color: #fff;
}

/* Info */
.btn-info {
  background-color: var(--c-brand);
  color: #fff;
}
.btn-info:hover, .btn-info:focus,
.btn-info.disabled, .btn-info[disabled] {
  background-color: var(--c-brand-dark);
  color: #fff;
}

/* Warning */
.btn-warning {
  background-color: var(--c-warning);
  color: #fff;
}
.btn-warning:hover, .btn-warning:focus {
  background-color: #92400e;
  color: #fff;
}

/* Белый текст на акцентных */
.btn-primary, .btn-primary:hover, .btn-primary:focus,
.btn-danger,  .btn-danger:hover,  .btn-danger:focus,
.btn-success, .btn-success:hover, .btn-success:focus,
.btn-info,    .btn-info:hover,    .btn-info:focus,
.btn-warning, .btn-warning:hover, .btn-warning:focus {
  color: #fff;
}

/* Outline */
.btn-outline-brand {
  background: transparent;
  color: var(--c-brand);
  border: 1.5px solid var(--c-brand);
  box-shadow: none;
}
.btn-outline-brand:hover, .btn-outline-brand:focus {
  background: var(--c-brand);
  color: #fff;
  text-decoration: none;
}

/* Размеры */
.btn-large, .btn-lg  { padding: 13px 30px; font-size: var(--text-md); }
.btn-small           { padding: 6px 16px;  font-size: var(--text-sm); }
.btn-mini            { padding: 4px 10px;  font-size: var(--text-xs); }

/* Герой-кнопки */
.btn-hero {
  padding: 15px 30px;
  font-size: 15px;
  font-weight: 700;
  animation: ctaPulse 3s ease-in-out infinite;
}
.btn-hero:hover { animation: none; }

.btn-hero-ghost {
  background: #fff;
  color: #1c5490;
  box-shadow: 0 2px 10px rgba(16,58,110,.10);
}
.btn-hero-ghost:hover {
  background: #f0f5ff;
  color: var(--c-brand);
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(16,58,110,.18);
}

/* Кнопки входа/выхода в навбаре */
.btn-open-payment {
  background: var(--c-danger);
  color: #fff;
  padding: 8px 18px;
}
.btn-open-payment:hover {
  background: #991b1b;
  color: #fff;
}

/* ============================================================
   ФОРМЫ
   ============================================================ */
.form-control {
  display: block;
  width: 100%;
  padding: 13px 15px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--c-text);
  background-color: #f8fbff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: none !important;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}
.form-control:focus {
  outline: none;
  border-color: var(--c-brand);
  box-shadow: 0 0 0 3px rgba(22,104,214,.12) !important;
}
.form-control::placeholder { color: var(--c-text-muted); }
.form-control:read-only {
  background-color: var(--c-brand-tint);
  color: var(--c-text-2);
}

.form-select {
  display: block;
  width: 100%;
  padding: 13px 15px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--c-text-muted);
  background-color: #f8fbff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--t-base);
  appearance: none;
}
.form-select:focus {
  outline: none;
  border-color: var(--c-brand);
  box-shadow: 0 0 0 3px rgba(22,104,214,.12);
}

.help-block {
  font-size: 12px;
  color: var(--c-danger);
  margin-top: 4px;
  display: block;
}

label {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--c-text-2);
  margin-bottom: 5px;
  display: block;
}

/* ============================================================
   НАВИГАЦИОННАЯ ПАНЕЛЬ
   ============================================================ */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid rgba(214, 227, 242, 0.70);
  box-shadow: 0 2px 12px rgba(16, 58, 110, 0.05);
  transition: background var(--t-base), box-shadow var(--t-base);
}

.site-nav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.site-nav__logo img {
  display: block;
  height: 42px;
  width: auto;
}

/* Ссылки навигации */
.site-nav__links {
  display: flex;
  gap: 26px;
  flex: 1;
  flex-wrap: wrap;
}

.site-nav__link {
  font-size: 14px;
  font-weight: 600;
  color: #4a6f96;
  text-decoration: none;
  transition: color var(--t-fast);
  white-space: nowrap;
}
.site-nav__link:hover {
  color: var(--c-brand);
  text-decoration: none;
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.site-nav__user {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.site-nav__user-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--c-text);
}

@media (max-width: 900px) {
  .site-nav__links { display: none; }
  .site-nav__inner { justify-content: space-between; }
}
@media (max-width: 640px) {
  .site-nav__inner { padding: 0 20px; gap: 12px; }
  .site-nav__logo img { height: 34px; }
  .site-nav__user-name { display: none; }
}

/* ============================================================
   HERO — общие стили
   ============================================================ */
.site-hero {
  background-color: var(--c-bg);
  background-image: none !important;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

#main { flex: 1 0 auto; }

/* Полноэкранный герой на главной */
.site-hero--home {
  background: linear-gradient(135deg, #eaf3ff 0%, #dbeaff 55%, #cfe2fb 100%) !important;
  padding: 52px 0 56px;
}

/* Компактный герой на внутренних страницах */
.site-hero--compact {
  background: linear-gradient(135deg, #e8f1fd 0%, #d6e8fc 100%);
  padding: 48px 32px 52px;
  text-align: center;
}
.site-hero--compact .site-hero__inner {
  max-width: 860px;
  margin: 0 auto;
}
.site-hero--compact .hero__scroll-hint { display: none; }
.site-hero--compact .hero__overline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #4a6f96;
  margin-bottom: 20px;
}
.site-hero--compact .hero__title {
  font-size: clamp(22px, 3.5vw, 32px);
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 18px;
}
.hero__meta {
  font-size: var(--text-base);
  color: var(--c-text-2);
  margin-bottom: 0;
}
.site-hero--compact .hero__meta {
  font-size: var(--text-base);
  color: var(--c-text-2);
  margin-bottom: 0;
}
.hero__sep {
  display: inline-block;
  margin: 0 10px;
  opacity: 0.35;
}

/* ── Hero двухколоночный (только главная) ── */
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 34px;
  align-items: center;
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.hero__dates-row {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
  align-items: center;
}

.hero__date-badge {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 600;
  color: #1c5490;
}

.hero__title {
  margin: 0;
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.14;
  color: #0f3f75;
}

.hero__subtitle {
  margin: 0;
  font-size: clamp(16px, 2.5vw, 24px);
  font-weight: 600;
  line-height: 1.3;
  color: #3b7cc4;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.hero__features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 18px;
  margin-top: 14px;
}

.hero__feature {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.hero__feature svg { flex: none; }

.hero__feature-text {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.35;
  color: #1c5490;
}

/* Визуальная зона (сердце + SVG декор) */
.hero__visual {
  position: relative;
  justify-self: end;
  width: 100%;
  max-width: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__visual-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__heart-img {
  position: relative;
  width: 100%;
  height: auto;
  display: block;
  mix-blend-mode: multiply;
  animation: beat 2.6s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .hero__heart-img { animation: none; }
}

@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .hero__visual {
    display: none;
  }
  .site-hero--home { padding: 44px 0 52px; }
}
@media (max-width: 640px) {
  .site-hero--home { padding: 36px 0 44px; }
  .hero__features { grid-template-columns: 1fr; gap: 12px; }
  .hero__title { font-size: clamp(18px, 5.5vw, 22px); }
}

/* ── Scroll hint (компактный, убран на мобайле) ── */
.hero__scroll-hint {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--c-text-muted);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero__scroll-hint::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--c-border), transparent);
}

/* ============================================================
   МОДАЛЬНОЕ ОКНО ВХОДА
   ============================================================ */
.modal-content {
  border: none;
  border-radius: var(--radius-lg);
  background: var(--c-surface);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  border-bottom: 1px solid var(--c-border-light);
  padding: 22px 26px 16px;
}

.modal-title {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--c-text);
}

.modal-body { padding: 22px 26px 26px; }

.modal-login .control-group { margin-bottom: 14px; }
.modal-login .control-group .form-control { width: 100%; }

.modal-login .login-links {
  font-size: var(--text-sm);
}
.modal-login .login-links a {
  display: block;
  color: var(--c-brand);
  margin-bottom: 3px;
}

.modal-login #login-error-alert {
  font-size: var(--text-sm);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

/* ============================================================
   СИСТЕМА СЕКЦИЙ
   ============================================================ */
.section {
  padding: var(--section-pad) 0;
  position: relative;
}

.section--base  { background-color: var(--c-bg); }
.section--light { background-color: var(--c-surface); }
.section--dark  {
  background: linear-gradient(120deg, #e7f1fe, #d8e8fc);
  overflow: hidden;
}

/* Текст в тёмной (теперь светло-голубой) секции */
.section--dark h2, .section--dark h3 { color: var(--c-text); }
.section--dark p { color: var(--c-text-2); }
.section--dark a { color: var(--c-brand); }
.section--dark a:hover { color: var(--c-brand-dark); }
.section--dark .t-overline,
.section--dark .section__overline { color: #6f92b8; }

.section__header {
  margin-bottom: 40px;
}
.section__header.text-center { text-align: center; }

/* ============================================================
   СЕКЦИЯ «О КОНФЕРЕНЦИИ»
   ============================================================ */
.about__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 30px;
  align-items: start;
}

@media (max-width: 900px) {
  .about__layout { grid-template-columns: 1fr; gap: 32px; }
}

.about__text {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--c-text-2);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.about__text p { margin: 0; }
.about__text strong { color: var(--c-text); font-weight: 700; }

.about__signature {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--c-border-light);
  font-size: var(--text-sm);
  color: var(--c-text-2);
  line-height: 1.55;
}
.about__signature strong {
  display: block;
  color: var(--c-text);
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: 2px;
}

/* Правая колонка «О конференции» */
.about__aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-card-who {
  background: var(--c-surface);
  border-radius: var(--radius-xl);
  padding: 22px 24px;
  box-shadow: var(--shadow-md);
  display: flex;
  gap: 16px;
  align-items: center;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.about-card-who:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.about-card-who__body { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.about-card-who__title { font-size: 16px; font-weight: 800; color: var(--c-text); }
.about-card-who__desc  { font-size: 13px; line-height: 1.5; color: #4a6f96; }

.about-card-who__arrow {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--c-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  transition: transform var(--t-base), background var(--t-base);
}
.about-card-who:hover .about-card-who__arrow {
  background: var(--c-brand-dark);
  transform: translateX(4px) scale(1.08);
}

/* Декоративная карта-SVG */
.about-deco-map {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  line-height: 0;
}
.about-deco-map__img { display: block; width: 100%; height: auto; object-fit: cover; }

/* Цитата */
.about-quote {
  background: linear-gradient(120deg, #1668d6, #0f3f75);
  border-radius: var(--radius-xl);
  padding: 26px 28px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.about-quote__text {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: #fff;
}

/* Организатор (оставляем как резерв) */
.about__organizers-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin-bottom: 16px;
}

.organizer-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  text-decoration: none;
  color: var(--c-text-2);
  font-size: var(--text-base);
  line-height: 1.6;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-border-light);
  transition: color var(--t-base), transform var(--t-base);
}
.organizer-card:last-child { border-bottom: none; }
.organizer-card:hover { color: var(--c-text); text-decoration: none; transform: translateX(3px); }

/* ============================================================
   СЕКЦИЯ «ГАЛЕРЕЯ» — FancyBox v5 Carousel
   ============================================================ */
.gallery-slider {
  position: relative;
  padding: 0 52px;
  /* переопределяем цветовые токены FancyBox */
  --f-button-bg:             #ffffff;
  --f-button-hover-bg:       #f0f5ff;
  --f-button-color:          var(--c-brand);
  --f-button-hover-color:    var(--c-brand);
  --f-button-border-radius:  50%;
  --f-button-width:          40px;
  --f-button-height:         40px;
  --f-button-shadow:         0 3px 14px rgba(16,58,110,.14);
}

/* Трек — flexbox, слайды не переносятся */
.gallery-slider .f-carousel__track {
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
}

/* Слайды: по 3 на десктопе */
.gallery-slider .f-carousel__slide {
  flex: 0 0 calc(100% / 3);
  width: calc(100% / 3);
  box-sizing: border-box;
  padding: 0 8px;
}
.gallery-slider .f-carousel__slide img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  display: block;
  transition: transform 0.35s ease;
  cursor: pointer;
}
.gallery-slider .f-carousel__slide a:hover img { transform: scale(1.035); }

/* Кнопка «Назад» — белая с синей стрелкой */
.gallery-slider .f-carousel__prev {
  left: 0;
  background: #fff !important;
  color: var(--c-brand) !important;
  box-shadow: 0 3px 14px rgba(16,58,110,.14) !important;
  border-radius: 50% !important;
}
.gallery-slider .f-carousel__prev:hover {
  box-shadow: 0 8px 22px rgba(16,58,110,.22) !important;
}

/* Кнопка «Вперёд» — синяя с белой стрелкой */
.gallery-slider .f-carousel__next {
  right: 0;
  background: var(--c-brand) !important;
  color: #fff !important;
  box-shadow: 0 3px 14px rgba(16,58,110,.18) !important;
  border-radius: 50% !important;
}
.gallery-slider .f-carousel__next:hover {
  background: var(--c-brand-dark) !important;
  box-shadow: 0 8px 22px rgba(16,58,110,.28) !important;
}

/* Иконки стрелок — одиночный шеврон */
.gallery-slider .f-button svg {
  width: 16px;
  height: 16px;
}

/* Точки (dots) */
.gallery-slider .f-carousel__dots {
  padding: 20px 0 0;
  display: flex;
  justify-content: center;
  gap: 8px;
}
.gallery-slider .f-carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #9dc0e4;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background 0.2s;
}
.gallery-slider .f-carousel__dot.is-nav-active {
  background: var(--c-brand);
}

#gallery .gallery-slider { margin-bottom: 52px; }

/* Планшет: 2 слайда */
@media (max-width: 1023px) {
  .gallery-slider { padding: 0 48px; }
  .gallery-slider .f-carousel__slide {
    flex: 0 0 50%;
    width: 50%;
  }
}

/* Мобайл: 1 слайд */
@media (max-width: 639px) {
  .gallery-slider { padding: 0 40px; }
  .gallery-slider .f-carousel__slide {
    flex: 0 0 100%;
    width: 100%;
  }
}

/* ============================================================
   СЕКЦИЯ «ПРОГРАММА» и «СПИКЕРЫ» (резерв, CSS готов)
   ============================================================ */
.program__days {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 768px) { .program__days { grid-template-columns: 1fr; } }

.program__day-title {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-brand);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c-brand-tint);
}

.program-slot {
  display: flex;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-border-light);
}
.program-slot:last-child { border-bottom: none; }

.program-slot__time {
  flex-shrink: 0;
  width: 72px;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--c-text-muted);
  padding-top: 2px;
}

.program-slot__body { flex: 1; }

.program-slot__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
  line-height: 1.4;
}

.program-slot__speaker {
  font-size: var(--text-sm);
  color: var(--c-text-2);
}

.program-slot--break .program-slot__title {
  color: var(--c-text-muted);
  font-weight: 400;
  font-style: italic;
}

.speakers__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
@media (max-width: 1100px) { .speakers__grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 800px)  { .speakers__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px)  { .speakers__grid { grid-template-columns: 1fr; } }

.speaker-card { display: flex; flex-direction: column; align-items: flex-start; }

.speaker-card__photo {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: var(--radius);
  filter: saturate(0.75);
  transition: filter 0.4s ease;
  margin-bottom: 16px;
  background: var(--c-border-light);
}
.speaker-card:hover .speaker-card__photo { filter: saturate(1); }

.speaker-card__photo-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, var(--c-brand-tint) 0%, var(--c-border-light) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--c-brand);
  opacity: 0.6;
}

.speaker-card__name {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
  line-height: 1.3;
}
.speaker-card__role {
  font-size: var(--text-sm);
  color: var(--c-text-2);
  line-height: 1.5;
}
.speaker-card__degree {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-brand);
  margin-bottom: 6px;
}

/* ============================================================
   СЕКЦИЯ «МАТЕРИАЛЫ» — карточки
   ============================================================ */
.materials__grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.material-card {
  background: var(--c-surface);
  border-radius: var(--radius-xl);
  padding: 22px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 36px;
  min-height: 172px;
  text-decoration: none;
  transition: transform var(--t-base), box-shadow var(--t-base);
  color: var(--c-text);
}
.material-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  text-decoration: none;
  color: var(--c-text);
}

.material-card--tint {
  background: #e8f1fd;
}

.material-card__icon {
  color: var(--c-brand);
  flex: none;
}

.material-card__footer {
  margin-top: auto;
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.material-card__label {
  flex: 1;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-text);
}
.material-card__label span {
  font-weight: 500;
  color: #6b8cad;
}

.material-card__desc {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.material-card__desc-title { font-size: 15px; font-weight: 700; color: var(--c-text); }
.material-card__desc-sub   { font-size: 11.5px; line-height: 1.45; color: #5c7fa2; }

.material-card__arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--c-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  transition: transform var(--t-base), background var(--t-base);
}
.material-card:hover .material-card__arrow {
  background: var(--c-brand-dark);
  transform: translateX(4px) scale(1.08);
}

/* Старые стили material-link (оставляем на случай других страниц) */
.materials__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 768px) { .materials__grid { grid-template-columns: 1fr; gap: 40px; } }

.material-link {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--c-text);
  padding: 14px 0;
  border-bottom: 1px solid var(--c-border-light);
  font-size: var(--text-base);
  transition: color var(--t-base), transform var(--t-base);
  text-decoration: none;
}
.material-link:hover { color: var(--c-brand); text-decoration: none; transform: translateX(5px); }

.material-link__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-brand-tint);
  border-radius: var(--radius-sm);
  transition: background var(--t-base);
}
.material-link:hover .material-link__icon { background: var(--c-brand-tint2); }
.material-link__icon img { width: 18px; height: 18px; }

/* НМО-блок */
.nmo-callout {
  padding: 28px 30px;
  background: var(--c-surface);
  border: 1px solid var(--c-border-light);
  border-left: 3px solid var(--c-brand);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--t-base);
}
.nmo-callout:hover { box-shadow: var(--shadow-md); }
.nmo-callout h3 {
  font-size: var(--text-h3);
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--c-text);
}
.nmo-callout p {
  font-size: var(--text-base);
  color: var(--c-text-2);
  margin: 0;
  line-height: 1.65;
}
.nmo-callout__icon {
  width: 32px;
  height: 32px;
  color: var(--c-brand);
  opacity: 0.85;
  margin-bottom: 14px;
  display: block;
}

/* ============================================================
   СЕКЦИЯ «КАК ДОБРАТЬСЯ» (мобильное приложение + карта)
   ============================================================ */
.venue__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 34px;
  align-items: center;
}
@media (max-width: 900px) { .venue__grid { grid-template-columns: 1fr; gap: 32px; } }

/* Декоративные концентрические окружности */
.venue__deco {
  position: absolute;
  right: -60px;
  bottom: -80px;
  opacity: 0.5;
  pointer-events: none;
}

.venue__content {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.venue__desc {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--c-text-2);
  max-width: 420px;
}

.venue__address {
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--c-text-2);
}

/* Кнопки App Store */
.venue__apps {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.venue__app-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #0c2340;
  border-radius: 12px;
  padding: 11px 20px;
  text-decoration: none;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.venue__app-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(12,35,64,.3);
  text-decoration: none;
}
.venue__app-btn__icon {
  display: block;
  width: 16px;
  height: 18px;
  object-fit: contain;
}
.venue__app-btn__label {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.venue__app-btn__sub  { font-size: 9px; color: #9fb8d4; letter-spacing: 0.06em; text-transform: uppercase; }
.venue__app-btn__name { font-size: 15px; font-weight: 700; color: #fff; }

/* Три карточки-функции справа */
.venue__features {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.venue-feature-card {
  background: var(--c-surface);
  border-radius: var(--radius-xl);
  padding: 22px 18px;
  box-shadow: 0 3px 16px rgba(16,58,110,.08);
  display: flex;
  flex-direction: column;
  gap: 26px;
  min-height: 170px;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.venue-feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.venue-feature-card__label {
  margin-top: auto;
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.4;
  color: #25537f;
}

/* Яндекс-карта */
.venue__map {
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-top: 32px;
  opacity: 0.9;
  transition: opacity var(--t-base);
}
.venue__map:hover { opacity: 1; }

@media (max-width: 640px) {
  .venue__features { grid-template-columns: 1fr; gap: 12px; }
  .venue-feature-card {
    flex-direction: row;
    align-items: center;
    gap: 14px;
    min-height: unset;
    padding: 16px 18px;
  }
  .venue-feature-card__label { margin-top: 0; }
}

/* ============================================================
   СЕКЦИЯ «РЕГИСТРАЦИЯ»
   ============================================================ */
.reg-card {
  background: var(--c-surface);
  border-radius: var(--radius-2xl);
  padding: 32px;
  box-shadow: 0 4px 22px rgba(16,58,110,.08);
}
@media (max-width: 768px) { .reg-card { padding: 24px 18px; } }

.reg-card .form-section-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin: 32px 0 18px;
}
.reg-card .form-section-title:first-of-type { margin-top: 0; }

.reg-status-notice {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-danger);
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-pill);
  padding: 6px 18px;
  margin-bottom: 24px;
}

/* Условия участия */
#register .terms {
  height: 158px;
  overflow: auto;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  line-height: 1.65;
  margin-top: 16px;
  margin-bottom: 10px;
  padding: 14px 16px;
  background: #f8fbff;
  color: var(--c-text-2);
}

#register label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--c-text-2);
  margin-bottom: 5px;
}

#register .information-participants { padding: 0; border: none; background: none; }
#register .information-participants .form-group { margin-bottom: 18px; }
#register .information-company .form-group { margin-bottom: 12px; }

/* Таблица тарифов */
#register .table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-lg); }
#register .table { --bs-body-bg: transparent; border-radius: 0; overflow: visible; margin-bottom: 0; }
#register .table td, #register .table th {
  border-color: var(--c-border-light);
  color: var(--c-text-2);
  font-size: var(--text-sm);
  padding: 13px 14px;
  vertical-align: middle;
}
#register .table thead td,
#register .table thead th {
  font-weight: 800;
  font-size: 12.5px;
  background: #eef5fe;
  color: var(--c-text);
}
#register .table tbody tr:nth-child(even) td { background: #f8fbff; }

#register .info_nmo { color: var(--c-brand); font-size: var(--text-sm); }

/* Подзаголовки формы */
.reg-header h3.center {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin: 32px 0 18px;
  padding-top: 20px;
  border-top: 1px solid var(--c-border-light);
  text-align: center;
}

/* Условия участия в reg (правая колонка) */
.reg-conditions {
  background: #eef5fe;
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.reg-conditions__title {
  font-size: 16px;
  font-weight: 800;
  color: var(--c-text);
}
.reg-conditions p {
  font-size: 13px;
  line-height: 1.6;
  color: #43668c;
  margin: 0;
}

#pricename-error { border-radius: var(--radius-sm); font-size: var(--text-sm); }
#register .reg-card { border: none; }

/* ============================================================
   СЕКЦИЯ «СПОНСОРЫ» — карточки
   ============================================================ */
.sponsors__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.sponsor-card {
  background: var(--c-surface);
  border-radius: var(--radius-xl);
  padding: 20px 22px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  transition: transform var(--t-base), box-shadow var(--t-base);
  color: var(--c-text);
}
.sponsor-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  text-decoration: none;
  color: var(--c-text);
}

.sponsor-card__icon { flex: none; color: var(--c-brand); }
.sponsor-card__label { flex: 1; font-size: 13.5px; font-weight: 700; color: var(--c-text); }

.sponsor-card__arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--c-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  transition: transform var(--t-base), background var(--t-base);
}
.sponsor-card:hover .sponsor-card__arrow {
  background: var(--c-brand-dark);
  transform: translateX(4px) scale(1.08);
}

/* Старый sponsor-link (резерв) */
.sponsors__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 560px;
  margin: 0 auto;
}

.sponsor-link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--text-md);
  color: var(--c-brand);
  padding: 16px 0;
  border-bottom: 1px solid var(--c-border-light);
  width: 100%;
  text-align: center;
  justify-content: center;
  transition: color var(--t-base), background-color var(--t-base), padding-left var(--t-base);
  text-decoration: none;
}
.sponsor-link:first-child { border-top: 1px solid var(--c-border-light); }
.sponsor-link:hover {
  color: var(--c-brand-dark);
  background-color: var(--c-brand-tint);
  padding-left: 14px;
  text-decoration: none;
}

.sponsors__logos {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px 56px;
  margin-top: 56px;
}
.sponsors__logos img {
  height: 40px;
  width: auto;
  opacity: 0.55;
  filter: grayscale(1);
  transition: opacity var(--t-base), filter var(--t-base);
}
.sponsors__logos img:hover { opacity: 0.85; filter: grayscale(0.3); }

/* ============================================================
   ПОДВАЛ
   ============================================================ */
.site-footer {
  background-color: var(--c-surface);
  border-radius: 22px 22px 0 0;
  padding: 28px 0 0;
  margin-top: 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 22px;
  align-items: start;
  margin-bottom: 24px;
}

.footer__org-name {
  font-size: 12px;
  line-height: 1.5;
  font-weight: 600;
  color: #4a6f96;
}

.footer__contact {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  color: #2b527a;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--t-fast);
}
.footer__contact:hover { color: var(--c-brand); text-decoration: none; }

.footer__address {
  font-size: 12px;
  line-height: 1.5;
  color: #4a6f96;
  font-weight: 600;
}

.footer__bottom {
  border-top: 1px solid var(--c-border-light);
  padding: 16px 0 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer__copy { font-size: 11.5px; color: var(--c-text-muted); }
.footer__policy {
  font-size: 11.5px;
  color: var(--c-brand);
  text-decoration: none;
}
.footer__policy:hover { text-decoration: underline; color: var(--c-brand-dark); }

/* Старые классы footer (резерв) */
.footer__org {
  text-align: center;
  font-size: var(--text-base);
  color: var(--c-text-2);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.65;
}
.footer__org h3 {
  font-size: var(--text-xl);
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--c-text);
}

.footer__contacts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 580px;
  margin: 0 auto 40px;
}
@media (max-width: 600px) { .footer__contacts-grid { grid-template-columns: 1fr; } }

.footer__contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--c-text);
  font-size: var(--text-base);
  text-decoration: none;
  transition: color var(--t-base), transform var(--t-base);
  padding: 6px 0;
}
.footer__contact-link:hover { color: var(--c-brand); text-decoration: none; transform: translateX(3px); }

.footer__contact-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-brand-tint);
  border-radius: var(--radius-sm);
  transition: background var(--t-base);
}
.footer__contact-link:hover .footer__contact-icon { background: var(--c-brand-tint2); }
.footer__contact-icon img { width: 16px; height: 16px; }

.footer__copy-old {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--c-text-muted);
  line-height: 1.7;
  margin-top: 20px;
}
.footer__copy-old a { color: var(--c-text-2); }
.footer__copy-old a:hover { color: var(--c-brand); }

/* ============================================================
   ЛИЧНЫЙ КАБИНЕТ — ВКЛАДКИ
   ============================================================ */
.nav-tabs { border-bottom: 1px solid var(--c-border-light); }
.nav-tabs .nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--c-text-2);
  padding: 10px 16px;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  transition: color var(--t-base), border-color var(--t-base);
}
.nav-tabs .nav-link:hover { color: var(--c-brand); border-bottom-color: var(--c-brand-tint); }
.nav-tabs .nav-link.active {
  color: var(--c-brand);
  font-weight: 700;
  border-bottom: 2px solid var(--c-brand);
  background: transparent;
}

.nav-pills .nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--c-text-2);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
  background: transparent;
  border: none;
  transition: background var(--t-base), color var(--t-base);
}
.nav-pills .nav-link:hover { background: var(--c-brand-tint); color: var(--c-brand); text-decoration: none; }
.nav-pills .nav-link.active { background: var(--c-brand); color: #fff; font-weight: 700; }

/* ============================================================
   ОПЛАТА / СЕРТИФИКАТ
   ============================================================ */
.pay-tab .table td, .pay-tab .table th {
  border-color: var(--c-border);
  color: var(--c-text);
  font-size: var(--text-sm);
  padding: 8px;
}

.tab-certificate .form-header {
  padding: 18px 20px;
  margin: 18px 0;
  background: var(--c-surface);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius-sm);
}
.tab-certificate div[role=radiogroup] label {
  display: inline-flex;
  align-items: center;
  margin-right: 0.5rem;
  font-size: var(--text-sm);
}
.tab-certificate div[role=radiogroup] label input { margin-right: 0.25rem; }

/* ============================================================
   УТИЛИТЫ
   ============================================================ */
.fixed-width-970 { max-width: 970px; }
.map { border-radius: var(--radius); overflow: hidden; }

#users table {
  font-size: var(--text-sm);
  --bs-table-striped-bg: var(--c-surface);
}

/* ============================================================
   АНИМАЦИИ СКРОЛЛА — fade + slide-up
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
  transition-delay: var(--d, 0s);
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .hero-anim .hero__content > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* Герой — последовательное появление */
@media (prefers-reduced-motion: no-preference) {
  .hero-anim .hero__dates-row {
    opacity: 0; transform: translateY(10px);
    transition: opacity 0.55s ease, transform 0.55s ease;
    transition-delay: 0.05s;
  }
  .hero-anim .hero__title {
    opacity: 0; transform: translateY(18px);
    transition: opacity 0.7s ease, transform 0.7s ease;
    transition-delay: 0.22s;
  }
  .hero-anim .hero__subtitle {
    opacity: 0;
    transition: opacity 0.6s ease;
    transition-delay: 0.38s;
  }
  .hero-anim .hero__actions {
    opacity: 0; transform: translateY(8px);
    transition: opacity 0.55s ease, transform 0.55s ease;
    transition-delay: 0.54s;
  }
  .hero-anim .hero__features {
    opacity: 0;
    transition: opacity 0.55s ease;
    transition-delay: 0.70s;
  }
  .hero-anim .hero__visual {
    opacity: 0;
    transition: opacity 0.8s ease;
    transition-delay: 0.3s;
  }
  .hero-anim.hero-go .hero__dates-row,
  .hero-anim.hero-go .hero__title,
  .hero-anim.hero-go .hero__subtitle,
  .hero-anim.hero-go .hero__actions,
  .hero-anim.hero-go .hero__features,
  .hero-anim.hero-go .hero__visual {
    opacity: 1; transform: translateY(0);
  }
}

/* ============================================================
   АДАПТИВНОСТЬ
   ============================================================ */
@media (max-width: 1024px) {
  :root { --section-pad: 68px; --container-pad: 28px; }
}

@media (max-width: 768px) {
  :root { --section-pad: 56px; --container-pad: 20px; }

  .site-nav__inner { padding: 0 20px; }
  .about__layout { grid-template-columns: 1fr; }
  .speakers__grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .program__days { grid-template-columns: 1fr; }
  .venue__grid { grid-template-columns: 1fr; }
  .reg-card { padding: 24px 18px; }
  .footer__contacts-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  :root { --section-pad: 48px; }
  .speakers__grid { grid-template-columns: 1fr; }
  .materials__grid-cards { grid-template-columns: 1fr; }
  .sponsors__grid { grid-template-columns: 1fr; }
  .material-card { gap: 16px; min-height: 130px; }
}

/* ============================================================
   ПЕЧАТЬ
   ============================================================ */
@media print {
  .site-nav, .hero__scroll-hint, .venue__apps { display: none; }
  body { padding-top: 0; font-size: 12pt; }
  .site-hero--home { min-height: auto; padding: 32pt 0; }
  .section { padding: 24pt 0; }
}