/* =============================================================================
   PSTU Conference Platform — Page Sections
   Все секции лендинга: базовые стили + About (facts, orgcommittee, topics, partners)
   ============================================================================= */

@import './variables.css';


/* =============================================================================
   BASE SECTION — общие стили для всех секций
   ============================================================================= */

.section {
  padding-block: var(--section-padding);
}

/* Варианты фона */
.section--white  { background-color: var(--color-white); }
.section--subtle { background-color: var(--color-gray-100); }
.section--dark   {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
}

/* Секции по умолчанию — белые */
#about,
#program,
#speakers {
  background-color: var(--color-white);
}

#contacts {
  background-color: var(--blue-deep);
  color: rgba(255, 255, 255, 0.92);
}

#registration,
#conditions,
#materials {
  background-color: var(--color-gray-100);
}


/* =============================================================================
   SECTION HEADER — заголовочный блок каждой секции
   ============================================================================= */

/*
   <header class="section__header">
     <p class="section-tag">Название секции</p>
     <h2 id="section-title">Основной заголовок</h2>
     <p class="lead">Опциональный лид-текст</p>
   </header>
*/

.section__header {
  max-width: 700px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section__header h2 {
  margin-top: var(--space-4);
  color: var(--color-text);
}

.section__header .lead {
  margin-top: var(--space-4);
}

/* Заголовок по центру (опциональный модификатор) */
.section__header--center {
  max-width: none;
  text-align: center;
}

.section__header--center .section-tag::before {
  display: none;
}

.section__header--center .section-tag {
  padding-left: 0;
  justify-content: center;
}


/* =============================================================================
   ABOUT — Секция «О конференции»
   ============================================================================= */

/* ---- Двухколоночный layout (60/40) ---------------------------------------- */

.about__layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
  margin-bottom: clamp(3.5rem, 7vw, 6rem);
}

/* ---- Левая колонка: текст -------------------------------------------------- */

.about__text {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/*
   Абзацы внутри описания — переопределяем базовые значения:
   400, 1.05rem, line-height 1.75, --gray-600
*/
.about__text p {
  font-size: 1.05rem;
  font-weight: var(--font-regular);
  line-height: 1.75;
  color: var(--color-gray-600);
  max-width: none;
  margin: 0;
}

.about__text strong {
  font-weight: var(--font-semibold);
  color: var(--color-gray-800);
}


/* =============================================================================
   FACTS CARD — карточка со статистикой
   ============================================================================= */

/*
   <div class="facts-card">
     <div class="facts-card__item">
       <span class="facts-card__number" data-count-to="250" data-count-suffix="+">250+</span>
       <span class="facts-card__label">Участников</span>
     </div>
     ...
   </div>
*/

.facts-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  /* 1px-зазор между ячейками через background (цвет зазора) */
  background-color: var(--color-gray-200);
  gap: 1px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-200);
}

.facts-card__item {
  background-color: var(--color-white);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: background-color var(--transition-fast);
}

.facts-card__item:hover {
  background-color: var(--color-gray-100);
}

/* Число — анимируется через countUp */
.facts-card__number {
  display: block;
  font-family: var(--font-family);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-primary);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

/* Подпись */
.facts-card__label {
  font-size: var(--text-small);
  font-weight: var(--font-medium);
  letter-spacing: 0.02em;
  color: var(--color-gray-500);
  line-height: 1;
}


/* =============================================================================
   ТЕМАТИЧЕСКИЕ НАПРАВЛЕНИЯ — topics-grid
   ============================================================================= */

/*
   <div class="about__topics">
     <h3 class="about__topics-title reveal">Тематические направления</h3>
     <div class="topics-grid" data-stagger data-stagger-step="70">
       <div class="topic-card reveal">
         <div class="topic-card__icon"><!-- SVG --></div>
         <h4 class="topic-card__title">Название</h4>
         <p class="topic-card__desc">Описание направления</p>
       </div>
     </div>
   </div>
*/

.about__topics {
  margin-bottom: clamp(3.5rem, 7vw, 6rem);
}

.about__topics-title {
  font-size: var(--text-h3);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-8);
  letter-spacing: var(--tracking-tight);
}

/* Grid: 3 колонки */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

/* Карточка направления */
.topic-card {
  padding: 1.5rem;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  cursor: default;
  transition:
    border-color var(--transition-base),
    box-shadow   var(--transition-base),
    transform    var(--transition-base);
}

.topic-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Иконка */
.topic-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--color-gray-100);
  color: var(--color-primary);
  flex-shrink: 0;
  transition:
    background-color var(--transition-base),
    color            var(--transition-base);
}

.topic-card__icon svg {
  width: 22px;
  height: 22px;
}

.topic-card:hover .topic-card__icon {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Заголовок */
.topic-card__title {
  font-size: 0.95rem;
  font-weight: var(--font-semibold);
  color: var(--color-text);
  line-height: var(--leading-snug);
  letter-spacing: 0;
}

/* Описание */
.topic-card__desc {
  font-size: var(--text-small);
  font-weight: var(--font-regular);
  line-height: var(--leading-normal);
  color: var(--color-text-subtle);
  max-width: none;
  margin: 0;
  flex: 1; /* выравнивание карточек по высоте */
}


/* =============================================================================
   ОРГАНИЗАЦИОННЫЙ КОМИТЕТ
   ============================================================================= */

/*
   <div class="about__orgcommittee reveal">
     <h3 class="about__orgcommittee-title">Организационный комитет</h3>
     <ul class="orgcommittee" role="list">
       <li class="orgcommittee__item">
         <span class="orgcommittee__role">Председатель</span>
         <div class="orgcommittee__person">
           <span class="orgcommittee__name">Иванов И. И.</span>
           <span class="orgcommittee__org">ПГТУ, д.т.н., профессор</span>
         </div>
       </li>
     </ul>
   </div>
*/

.about__orgcommittee {
  margin-bottom: clamp(3.5rem, 7vw, 6rem);
}

.about__orgcommittee-title {
  font-size: var(--text-h3);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

/* Список */
.orgcommittee {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-gray-200);
}

.orgcommittee__item {
  display: flex;
  gap: var(--space-6);
  align-items: baseline;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-gray-200);
  transition: background-color var(--transition-fast);
}

/* Тонкий hover на строке */
.orgcommittee__item:hover {
  background-color: var(--color-gray-100);
  margin-inline: calc(-1 * var(--space-4));
  padding-inline: var(--space-4);
  border-radius: var(--radius-sm);
  border-bottom-color: transparent;
}

/* Должность */
.orgcommittee__role {
  min-width: 220px;
  flex-shrink: 0;
  font-size: var(--text-small);
  font-weight: var(--font-medium);
  color: var(--color-gray-500);
  letter-spacing: 0.02em;
}

/* Блок персоны */
.orgcommittee__person {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

/* ФИО */
.orgcommittee__name {
  font-size: var(--text-body);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

/* Организация / степень */
.orgcommittee__org {
  font-size: var(--text-small);
  color: var(--color-gray-500);
  line-height: var(--leading-snug);
}


/* =============================================================================
   ПАРТНЁРЫ — CSS Marquee (бесконечная прокрутка)
   ============================================================================= */

/*
   Структура для seamless-loop:
   .partners__track содержит 2 ОДИНАКОВЫХ набора логотипов подряд.
   Анимация translateX(0) → translateX(-50%) = ровно 1 набор.
   При hover — paused.

   <div class="about__partners reveal">
     <p class="about__partners-title">Партнёры конференции</p>
     <div class="partners">
       <div class="partners__track" aria-hidden="true">
         <!-- set 1 -->
         <div class="partner-logo">...</div>  × N
         <!-- set 2 (duplicate) -->
         <div class="partner-logo">...</div>  × N
       </div>
     </div>
   </div>
*/

.about__partners-title {
  font-size: var(--text-tiny);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-gray-400);
  text-align: center;
  margin-bottom: var(--space-8);
}

/* Viewport с обрезкой и fade-масками по краям */
.partners {
  overflow: hidden;
  mask-image: linear-gradient(
    to right,
    transparent,
    black 8%,
    black 92%,
    transparent
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent,
    black 8%,
    black 92%,
    transparent
  );
}

/* Пауза при hover */
.partners:hover .partners__track {
  animation-play-state: paused;
}

/* Бегущая строка */
.partners__track {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  width: max-content;
  animation: marqueeScroll 32s linear infinite;
}

/* Обратное направление — второй ряд (если нужен) */
.partners__track--reverse {
  animation-direction: reverse;
}

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* Логотип-заглушка */
.partner-logo {
  flex-shrink: 0;
  width: 120px;
  height: 60px;
}

.partner-logo__inner {
  width: 100%;
  height: 100%;
  background-color: var(--color-gray-100);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-family);
  font-size: var(--text-tiny);
  font-weight: var(--font-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gray-400);
  transition:
    border-color     var(--transition-fast),
    background-color var(--transition-fast),
    color            var(--transition-fast);
  user-select: none;
}

.partner-logo:hover .partner-logo__inner {
  border-color: var(--color-gray-400);
  background-color: var(--color-gray-200);
  color: var(--color-gray-600);
}

/* Реальный логотип (img) */
.partner-logo img {
  max-width: 90px;
  max-height: 40px;
  object-fit: contain;
  filter: grayscale(1) opacity(0.55);
  transition: filter var(--transition-base);
}

.partner-logo:hover img {
  filter: grayscale(0) opacity(1);
}


/* =============================================================================
   УСЛОВИЯ УЧАСТИЯ — #conditions
   ============================================================================= */

.conditions__types {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

.conditions-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.conditions-card:hover {
  border-color: var(--color-gray-300);
  box-shadow: var(--shadow-md);
}

.conditions-card--featured {
  border: 2px solid var(--burgundy);
  box-shadow: var(--shadow-md);
}

.conditions-card--featured:hover {
  border-color: var(--color-secondary-light);
}

.conditions-card__ribbon {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  font-size: var(--text-tiny);
  font-weight: var(--font-bold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--burgundy), var(--color-secondary-dark));
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
}

.conditions-card__head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-right: 5rem;
}

.conditions-card--featured .conditions-card__head {
  padding-right: 6.5rem;
}

.conditions-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--color-gray-100);
  color: var(--color-primary);
  flex-shrink: 0;
}

.conditions-card__icon svg {
  width: 22px;
  height: 22px;
}

.conditions-card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: var(--font-semibold);
  color: var(--color-text);
  letter-spacing: var(--tracking-tight);
}

.conditions-card__format {
  margin: 0;
  font-size: var(--text-small);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
}

.conditions-card__label {
  display: block;
  font-size: var(--text-tiny);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gray-400);
  margin-bottom: 2px;
}

.conditions-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--text-small);
  color: var(--color-gray-700);
}

.conditions-card__list--check li::before {
  content: '✓';
  margin-right: var(--space-2);
  color: var(--status-pass);
  font-weight: var(--font-bold);
}

.conditions-card__list--plus li::before {
  content: '+';
  margin-right: var(--space-2);
  color: var(--color-primary);
  font-weight: var(--font-bold);
}

.conditions-card__file {
  margin: 0;
  font-size: var(--text-small);
  color: var(--color-text-muted);
}

.conditions-card__file strong {
  color: var(--color-text);
  font-weight: var(--font-semibold);
}

.conditions-card__badge--free {
  align-self: flex-start;
  font-size: var(--text-tiny);
  font-weight: var(--font-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-white);
  background-color: var(--color-success);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-full);
}

.conditions-card__cta {
  margin-top: auto;
}

/* ---- Аккордеон тезисов ---------------------------------------------------- */

.conditions__accordion-wrap {
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

.conditions-accordion {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.conditions-accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 1rem 1.25rem;
  margin: 0;
  border: none;
  background: var(--color-white);
  font-family: var(--font-family);
  font-size: var(--text-body);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.conditions-accordion__trigger:hover {
  background-color: var(--color-gray-100);
}

.conditions-accordion__trigger:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: -2px;
}

.conditions-accordion__chevron {
  display: inline-flex;
  font-size: 1.1rem;
  line-height: 1;
  color: var(--color-primary);
  transition: transform var(--transition-base);
}

.conditions-accordion.open .conditions-accordion__chevron {
  transform: rotate(180deg);
}

.conditions-accordion__panel {
  overflow: hidden;
}

.conditions-accordion__inner {
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid var(--color-gray-200);
  padding-top: 1rem;
}

.conditions-thesis-req {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.conditions-thesis-req > div {
  display: grid;
  gap: var(--space-2);
}

.conditions-thesis-req dt {
  font-size: var(--text-small);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.conditions-thesis-req dd {
  margin: 0;
  font-size: var(--text-small);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
}

.conditions-thesis-req code {
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background-color: var(--color-gray-100);
  color: var(--color-gray-800);
}

.conditions-thesis-req__sample {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px dashed var(--color-gray-300);
  background-color: var(--color-gray-100);
  font-size: var(--text-tiny);
  color: var(--color-gray-600);
}

.conditions-thesis-req__sample-title {
  font-weight: var(--font-semibold);
  text-align: center;
  color: var(--color-text);
}

.conditions-thesis-req__sample-meta {
  text-align: center;
  font-style: italic;
}

.conditions-thesis-req__sample-body {
  text-align: justify;
  border-top: 1px solid var(--color-gray-200);
  padding-top: var(--space-2);
}

/* ---- Блоки с подзаголовком ------------------------------------------------ */

.conditions__block {
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

.conditions__block:last-child {
  margin-bottom: 0;
}

.conditions__subtitle {
  font-size: var(--text-h3);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
  margin: 0 0 var(--space-6);
}

/* ---- Шаги подачи заявок --------------------------------------------------- */

.conditions-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content: center;
  gap: 0.5rem 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.conditions-steps__item {
  flex: 1 1 140px;
  min-width: 120px;
  max-width: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
}

.conditions-steps__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-gray-100);
  color: var(--color-primary);
}

.conditions-steps__icon svg {
  width: 20px;
  height: 20px;
}

.conditions-steps__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--radius-full);
  font-size: var(--text-tiny);
  font-weight: var(--font-bold);
  color: var(--color-white);
  background-color: var(--color-primary);
}

.conditions-steps__text {
  font-size: var(--text-small);
  font-weight: var(--font-medium);
  line-height: var(--leading-snug);
  color: var(--color-gray-700);
}

.conditions-steps__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  align-self: center;
  color: var(--color-gray-400);
  padding: 0 var(--space-1);
}

.conditions-steps__arrow svg {
  width: 22px;
  height: 22px;
}

/* ---- Горизонтальный timeline дат ---------------------------------------- */

.conditions-timeline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
  width: 100%;
}

.conditions-timeline__item {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
  min-width: 0;
}

.conditions-timeline__dot {
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  border: 2px solid var(--color-gray-300);
  background-color: transparent;
  transition:
    border-color var(--transition-base),
    background-color var(--transition-base),
    box-shadow var(--transition-base);
}

.conditions-timeline__item--past .conditions-timeline__dot {
  border-color: var(--status-pass);
  background-color: var(--status-pass);
}

.conditions-timeline__item--future .conditions-timeline__dot {
  border-color: var(--color-primary);
  background-color: transparent;
}

.conditions-timeline__item--current .conditions-timeline__dot {
  border-color: var(--color-secondary);
  background-color: var(--color-white);
  box-shadow: 0 0 0 3px rgba(172, 20, 34, 0.25);
  animation: conditionsTimelinePulse 2s ease-in-out infinite;
}

@keyframes conditionsTimelinePulse {
  0%, 100% {
    box-shadow: 0 0 0 3px rgba(172, 20, 34, 0.2);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(172, 20, 34, 0.12);
  }
}

.conditions-timeline__label {
  font-size: var(--text-tiny);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  line-height: var(--leading-snug);
}

.conditions-timeline__date {
  font-size: var(--text-small);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.conditions-timeline__line {
  flex: 0 0 auto;
  width: 24px;
  height: 2px;
  margin-top: 6px;
  background: linear-gradient(
    to right,
    var(--color-gray-300),
    var(--color-gray-200)
  );
  align-self: flex-start;
}


/* =============================================================================
   ПРОГРАММА КОНФЕРЕНЦИИ — #program
   ============================================================================= */

.program {
  --program-line: var(--color-gray-200);
  --program-dot: var(--blue-primary);
}

.program__controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
}

/* ---- Табы дней (pill) ----------------------------------------------------- */

.program__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-1);
  border-radius: var(--radius-full);
  background-color: var(--color-gray-100);
  width: fit-content;
  max-width: 100%;
}

.program__tab {
  appearance: none;
  margin: 0;
  border: none;
  cursor: pointer;
  font-family: var(--font-family);
  font-size: var(--text-small);
  font-weight: var(--font-semibold);
  letter-spacing: 0.02em;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-full);
  color: var(--color-gray-600);
  background-color: transparent;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.program__tab:hover:not([aria-selected="true"]) {
  color: var(--color-text);
  background-color: rgba(15, 60, 115, 0.06);
}

.program__tab:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

.program__tab[aria-selected="true"] {
  background-color: var(--blue-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

/* ---- Чипы фильтра секций -------------------------------------------------- */

.program__filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.program__filter {
  appearance: none;
  margin: 0;
  border: 1.5px solid var(--color-gray-200);
  cursor: pointer;
  font-family: var(--font-family);
  font-size: var(--text-tiny);
  font-weight: var(--font-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-full);
  color: var(--color-gray-600);
  background-color: var(--color-white);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.program__filter:hover:not([aria-pressed="true"]) {
  border-color: var(--color-gray-300);
  color: var(--color-text);
}

.program__filter:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

.program__filter[aria-pressed="true"] {
  background-color: var(--blue-primary);
  border-color: var(--blue-primary);
  color: var(--color-white);
}

/* ---- Область видов (timeline / table) ------------------------------------ */

.program__views {
  position: relative;
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
}

.program__day[hidden] {
  display: none !important;
}

/* ---- Вертикальный timeline ----------------------------------------------- */

.program-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  padding-left: 1.25rem;
}

.program-timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--program-line),
    var(--color-gray-100)
  );
  border-radius: 1px;
}

.program-event {
  position: relative;
  padding-left: var(--space-6);
  padding-bottom: var(--space-6);
}

.program-event:last-child {
  padding-bottom: 0;
}

.program-event::before {
  content: '';
  position: absolute;
  left: -1.25rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  margin-left: 0;
  border-radius: var(--radius-full);
  background-color: var(--color-white);
  border: 2px solid var(--program-dot);
  z-index: 1;
  box-sizing: border-box;
}

.program-event--break::before {
  border-color: var(--color-gray-400);
  background-color: var(--color-gray-200);
}

.program-event--plenary::before {
  border-color: var(--blue-primary);
  background-color: var(--blue-primary);
}

.program-event__card {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  background-color: var(--color-white);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
  transition: opacity var(--transition-fast);
}

.program-event[hidden] {
  display: none !important;
}

.program-event--plenary .program-event__card {
  background-color: var(--blue-primary);
  border-color: var(--blue-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.program-event--plenary .program-event__time,
.program-event--plenary .program-event__title,
.program-event--plenary .program-event__desc,
.program-event--plenary .program-event__speaker {
  color: inherit;
}

.program-event--plenary .program-event__badge {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--color-white);
}

.program-event--break .program-event__card {
  background-color: var(--color-gray-100);
  border-color: var(--color-gray-200);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.program-event__break-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  color: var(--color-gray-500);
  border: 1px solid var(--color-gray-200);
}

.program-event__break-icon svg {
  width: 18px;
  height: 18px;
}

.program-event__break-body {
  flex: 1;
  min-width: 0;
}

.program-event__time {
  display: block;
  font-size: var(--text-tiny);
  font-weight: var(--font-bold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue-primary);
  margin-bottom: var(--space-2);
}

.program-event--plenary .program-event__time {
  color: rgba(255, 255, 255, 0.85);
}

.program-event--break .program-event__time {
  color: var(--color-gray-500);
}

.program-event__title {
  margin: 0 0 var(--space-2);
  font-size: 1.05rem;
  font-weight: var(--font-semibold);
  color: var(--color-text);
  line-height: var(--leading-snug);
}

.program-event__desc {
  margin: 0 0 var(--space-3);
  font-size: var(--text-small);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
}

.program-event--plenary .program-event__desc {
  color: rgba(255, 255, 255, 0.88);
}

.program-event__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.program-event__badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-tiny);
  font-weight: var(--font-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gray-200);
  background-color: var(--color-gray-100);
  color: var(--color-gray-600);
}

.program-event__speaker {
  font-size: var(--text-small);
  color: var(--color-gray-600);
}

.program-event--plenary .program-event__speaker {
  color: rgba(255, 255, 255, 0.9);
}

/* ---- Таблица -------------------------------------------------------------- */

.program__table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
}

.program__table-wrap[hidden] {
  display: none !important;
}

.program-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: var(--text-small);
}

.program-table th,
.program-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-gray-200);
  vertical-align: top;
}

.program-table th {
  font-size: var(--text-tiny);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-gray-500);
  background-color: var(--color-gray-100);
}

.program-table tbody tr:last-child td {
  border-bottom: none;
}

.program-table tr.program-table__row--plenary td {
  background-color: var(--blue-primary);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.15);
}

.program-table tr.program-table__row--plenary .program-table__muted {
  color: rgba(255, 255, 255, 0.85);
}

.program-table tr.program-table__row--break td {
  background-color: var(--color-gray-100);
}

.program-table__muted {
  color: var(--color-text-muted);
}

.program-table tr[hidden] {
  display: none !important;
}

/* ---- Действия внизу ------------------------------------------------------- */

.program__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: flex-start;
}

.program__timeline-root[hidden],
.program__table-root[hidden] {
  display: none !important;
}


/* =============================================================================
   СПИКЕРЫ — #speakers
   ============================================================================= */

.speakers-section {
  position: relative;
  overflow: hidden;
}

.speakers-section__container {
  position: relative;
  z-index: 1;
}

.speakers-section__quote {
  position: absolute;
  z-index: 0;
  font-family: var(--font-family);
  font-weight: var(--font-black);
  font-size: 8rem;
  line-height: 0.85;
  color: rgba(15, 60, 115, 0.05);
  pointer-events: none;
  user-select: none;
}

.speakers-section__quote--open {
  top: clamp(1.5rem, 6vw, 4rem);
  left: clamp(0.25rem, 2vw, 1.5rem);
}

.speakers-section__quote--close {
  bottom: clamp(1.5rem, 6vw, 4rem);
  right: clamp(0.25rem, 2vw, 1.5rem);
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 3vw, 1.75rem);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.speaker-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.speaker-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gray-300);
}

.speaker-card__photo {
  aspect-ratio: 1 / 1;
  width: 100%;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--blue-deep), var(--blue-primary));
}

.speaker-card__initials {
  font-size: clamp(1.35rem, 3.5vw, 1.85rem);
  font-weight: var(--font-bold);
  letter-spacing: 0.08em;
  color: var(--color-white);
}

.speaker-card__name {
  margin: 0 0 var(--space-2);
  font-family: var(--font-family);
  font-size: 1.1rem;
  font-weight: var(--font-bold);
  line-height: var(--leading-snug);
  color: var(--color-text);
}

.speaker-card__role {
  margin: 0 0 var(--space-2);
  font-size: 0.85rem;
  font-weight: var(--font-regular);
  line-height: var(--leading-snug);
  color: var(--color-gray-500);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.speaker-card__org {
  margin: 0 0 var(--space-3);
  font-size: 0.8rem;
  font-weight: var(--font-semibold);
  line-height: var(--leading-snug);
  color: var(--blue-primary);
}

.speaker-card__topic {
  margin: 0;
  margin-top: auto;
  padding-left: var(--space-3);
  border-left: 3px solid var(--burgundy);
  font-size: 0.85rem;
  font-style: italic;
  font-weight: var(--font-regular);
  line-height: var(--leading-normal);
  color: var(--color-gray-700);
}

.speakers-section__cta {
  margin: 0;
  text-align: center;
}


/* =============================================================================
   МАТЕРИАЛЫ — #materials
   ============================================================================= */

.materials-search {
  margin-bottom: var(--space-6);
  max-width: 28rem;
}

.materials-search__label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: 0.9rem;
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.materials-search__field {
  position: relative;
}

.materials-search__icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  color: var(--color-text-muted);
  pointer-events: none;
}

.materials-search__input {
  width: 100%;
  padding-left: 2.75rem;
}

.materials-search__hint {
  margin-top: var(--space-2);
}

.materials__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.materials-card {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.materials-card--featured {
  border-left: 4px solid var(--burgundy);
}

.materials-card__icon {
  flex-shrink: 0;
  min-width: 2.75rem;
  height: 2.75rem;
  padding: 0 var(--space-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: var(--font-extrabold);
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  color: var(--color-white);
}

.materials-card__icon--pdf {
  background-color: var(--burgundy);
}

.materials-card__body {
  flex: 1 1 14rem;
  min-width: 0;
}

.materials-card__title {
  margin: 0 0 var(--space-1);
  font-size: 1.1rem;
  font-weight: var(--font-bold);
  color: var(--color-text);
}

.materials-card__meta {
  margin: 0 0 var(--space-3);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.materials-docs__title {
  margin: 0 0 var(--space-2);
  font-size: 1.15rem;
  font-weight: var(--font-bold);
  color: var(--color-text);
}

.materials-docs__lead {
  margin: 0 0 var(--space-4);
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.materials-docs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.materials-doc-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
}

.materials-doc-row__icon {
  flex-shrink: 0;
  min-width: 2.25rem;
  height: 2rem;
  padding: 0 var(--space-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: var(--font-extrabold);
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  color: var(--color-white);
}

.materials-doc-row__icon--pdf {
  background-color: var(--burgundy);
}

.materials-doc-row__icon--doc {
  background-color: var(--blue-primary);
}

.materials-doc-row__main {
  flex: 1 1 10rem;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.materials-doc-row__name {
  font-size: 0.95rem;
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.materials-doc-row__size {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.materials-gallery__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.materials-gallery__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: var(--font-bold);
  color: var(--color-text);
}

.materials-gallery__all {
  font-weight: var(--font-semibold);
  font-size: 0.95rem;
  color: var(--blue-primary);
  text-decoration: none;
}

.materials-gallery__all:hover {
  text-decoration: underline;
}

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

.materials-gallery__cell {
  position: relative;
  margin: 0;
  padding: 0;
  border: none;
  cursor: pointer;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(145deg, var(--color-gray-200), var(--color-gray-300));
  transition: transform 0.25s ease;
  color: inherit;
  font: inherit;
}

.materials-gallery__cell:hover {
  transform: scale(1.03);
}

.materials-gallery__cell:focus-visible {
  outline: 2px solid var(--blue-primary);
  outline-offset: 2px;
}

.materials-gallery__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
}

.materials-gallery__placeholder svg {
  width: 2.5rem;
  height: 2.5rem;
}

.materials-gallery__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  transition: opacity 0.25s ease;
  color: var(--color-white);
  pointer-events: none;
}

.materials-gallery__cell:hover .materials-gallery__overlay {
  opacity: 1;
}

.materials-gallery__overlay svg {
  width: 2rem;
  height: 2rem;
}

.materials-videos__title {
  margin: 0 0 var(--space-4);
  font-size: 1.15rem;
  font-weight: var(--font-bold);
  color: var(--color-text);
}

.materials-videos__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.materials-video-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-white);
  box-shadow: var(--shadow-card);
}

.materials-video-card__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(160deg, var(--color-gray-700), var(--color-gray-900));
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.92);
}

.materials-video-card__play svg {
  width: 3.5rem;
  height: 3.5rem;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.35));
}

.materials-video-card__caption {
  margin: 0;
  padding: var(--space-3) var(--space-4);
  font-size: 0.9rem;
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

@media (max-width: 960px) {
  .materials-gallery__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .materials-videos__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .materials-gallery__grid {
    grid-template-columns: 1fr;
  }
}


/* =============================================================================
   КОНТАКТЫ — #contacts
   ============================================================================= */

.contacts-section .section__header {
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.contacts-section .section__header h2 {
  color: var(--color-white);
}

.contacts-section .section-tag {
  color: rgba(255, 255, 255, 0.65);
}

.contacts-section .section-tag::before {
  background-color: var(--color-secondary-light);
}

.contacts__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: start;
}

.contacts__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contacts__lead {
  margin: 0;
  font-size: var(--text-small);
  line-height: var(--leading-relaxed);
  color: rgba(255, 255, 255, 0.75);
  max-width: 28rem;
}

.contacts__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contacts__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.contacts__item-label {
  font-size: 0.7rem;
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.contacts__item-value {
  margin: 0;
  font-size: 1rem;
  font-weight: var(--font-medium);
  line-height: var(--leading-snug);
}

.contacts__item-value a {
  color: var(--color-white);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.contacts__item-value a:hover {
  border-bottom-color: var(--color-white);
  color: var(--color-white);
}

.contacts__hours {
  margin: 0;
  font-size: var(--text-small);
  color: rgba(255, 255, 255, 0.8);
}

.contacts__social {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.contacts__social-label {
  font-size: 0.7rem;
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  width: 100%;
}

.contacts__social-links {
  display: flex;
  gap: var(--space-3);
}

.contacts__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.contacts__social-link:hover {
  background-color: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}

.contacts__social-link:focus-visible {
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

.contacts__social-link svg {
  width: 1.35rem;
  height: 1.35rem;
}

.contacts__form-wrap {
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 4vw, var(--space-8));
}

.contacts-form .form-label {
  color: rgba(255, 255, 255, 0.88);
}

.contacts-form .form-required::after {
  color: var(--color-secondary-light);
}

.contacts-form .form-input,
.contacts-form .form-textarea {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
  color: var(--color-white);
}

.contacts-form .form-input::placeholder,
.contacts-form .form-textarea::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.contacts-form .form-input:hover:not(:disabled):not(:focus),
.contacts-form .form-textarea:hover:not(:disabled):not(:focus) {
  border-color: rgba(255, 255, 255, 0.35);
}

.contacts-form .form-input:focus,
.contacts-form .form-textarea:focus {
  border-color: var(--color-primary-light);
  background-color: rgba(255, 255, 255, 0.1);
  box-shadow:
    0 0 0 3px rgba(26, 81, 153, 0.35),
    0 1px 3px rgba(0, 0, 0, 0.2);
}

.contacts-form .form-hint {
  color: rgba(255, 255, 255, 0.55);
}

.contacts-form .btn-primary {
  width: 100%;
}

.contacts-map {
  margin-top: clamp(var(--space-8), 6vw, var(--space-12));
}

.contacts-map__placeholder {
  position: relative;
  min-height: 280px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    var(--color-primary-dark);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8);
  text-align: center;
}

.contacts-map__placeholder-icon {
  width: 3rem;
  height: 3rem;
  color: rgba(255, 255, 255, 0.35);
}

.contacts-map__placeholder-title {
  margin: 0;
  font-size: 1rem;
  font-weight: var(--font-semibold);
  color: rgba(255, 255, 255, 0.85);
}

.contacts-map__placeholder-note {
  margin: 0;
  max-width: 22rem;
  font-size: var(--text-small);
  line-height: var(--leading-normal);
  color: rgba(255, 255, 255, 0.55);
}

@media (max-width: 960px) {
  .contacts__layout {
    grid-template-columns: 1fr;
  }
}


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

.footer {
  background-color: var(--color-gray-900);
  color: rgba(255, 255, 255, 0.82);
}

.footer__main {
  padding-block: clamp(var(--space-8), 5vw, var(--space-12));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(var(--space-8), 5vw, var(--space-12));
  align-items: start;
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: inherit;
  margin-bottom: var(--space-4);
}

.footer__logo-mark {
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: var(--font-black);
  letter-spacing: 0.02em;
  color: var(--color-white);
  background: linear-gradient(145deg, var(--color-primary-light), var(--color-primary));
  border-radius: var(--radius-sm);
}

.footer__logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.15;
}

.footer__logo-name {
  font-size: 0.95rem;
  font-weight: var(--font-bold);
  color: var(--color-white);
}

.footer__logo-sub {
  font-size: 0.7rem;
  font-weight: var(--font-medium);
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer__about {
  margin: 0 0 var(--space-4);
  font-size: var(--text-small);
  line-height: var(--leading-relaxed);
  color: rgba(255, 255, 255, 0.65);
  max-width: 22rem;
}

.footer__copy-inline {
  margin: 0;
  font-size: var(--text-tiny);
  color: rgba(255, 255, 255, 0.45);
}

.footer__col-title {
  margin: 0 0 var(--space-4);
  font-size: 0.7rem;
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__list a {
  font-size: var(--text-small);
  font-weight: var(--font-medium);
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__list a:hover {
  color: var(--color-white);
}

.footer__list a:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
  border-radius: 2px;
}

.footer__bottom {
  padding-block: var(--space-4);
}

.footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3) var(--space-6);
}

.footer__bottom-copy {
  margin: 0;
  font-size: var(--text-tiny);
  color: rgba(255, 255, 255, 0.5);
}

.footer__bottom-tagline {
  margin: 0;
  font-size: var(--text-tiny);
  font-style: italic;
  color: rgba(255, 255, 255, 0.45);
}

.footer__bottom-seo {
  margin: 0;
  font-size: var(--text-tiny);
}

.footer__bottom-seo a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.footer__bottom-seo a:hover {
  color: rgba(255, 255, 255, 0.85);
  border-bottom-color: rgba(255, 255, 255, 0.45);
}

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

  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}


/* =============================================================================
   АДАПТИВ
   ============================================================================= */

/* Условия: планшет — 2 колонки карточек, «Докладчик» на всю ширину */
@media (max-width: 960px) and (min-width: 601px) {
  .conditions__types {
    grid-template-columns: repeat(2, 1fr);
    max-width: none;
    margin-inline: 0;
  }

  .conditions-card--featured {
    grid-column: 1 / -1;
    order: -1;
  }
}

/* Планшеты (≤960px) — 2 колонки topics, 1 колонка layout */
@media (max-width: 960px) {
  .about__layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about__aside {
    display: flex;
    justify-content: flex-start;
  }

  .facts-card {
    max-width: 420px;
  }

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

  .conditions-steps {
    flex-direction: column;
    align-items: stretch;
  }

  .conditions-steps__item {
    max-width: none;
    flex: none;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    text-align: left;
    gap: var(--space-3);
  }

  .conditions-steps__item .conditions-steps__text {
    flex: 1 1 200px;
  }

  .conditions-steps__arrow {
    transform: rotate(90deg);
    padding: var(--space-2) 0;
    align-self: center;
  }

  .conditions-timeline {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
  }

  .conditions-timeline__line {
    width: 2px;
    height: 24px;
    margin: 0 auto;
    margin-top: 0;
    background: linear-gradient(
      to bottom,
      var(--color-gray-300),
      var(--color-gray-200)
    );
  }

  .conditions-timeline__item {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    text-align: left;
    gap: var(--space-3);
  }

  .conditions-timeline__item .conditions-timeline__dot {
    margin-top: 4px;
  }

  .conditions-timeline__item .conditions-timeline__label,
  .conditions-timeline__item .conditions-timeline__date {
    flex: 1 1 auto;
  }

  .program__tabs {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

  .program__tab {
    flex-shrink: 0;
  }

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

/* Мобильные (≤600px) */
@media (max-width: 600px) {
  .topics-grid {
    grid-template-columns: 1fr;
  }

  .conditions__types {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-inline: auto;
  }

  .conditions-card--featured {
    grid-column: auto;
    order: -1;
  }

  .orgcommittee__item {
    flex-direction: column;
    gap: var(--space-2);
  }

  .orgcommittee__role {
    min-width: auto;
  }

  .orgcommittee__item:hover {
    margin-inline: calc(-1 * var(--space-3));
    padding-inline: var(--space-3);
  }

  .facts-card {
    max-width: 100%;
  }

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

  .speakers-section__quote {
    font-size: clamp(3.5rem, 18vw, 5rem);
  }
}

/* Очень маленькие (≤380px) */
@media (max-width: 380px) {
  .facts-card {
    grid-template-columns: 1fr;
  }
}