/* ==========================================================================
   UI Components (Buttons, Cards, Bottom Sheet, Carousel, Form, FAQ)
   ========================================================================== */

/* ---------------- 1.4 Кнопки (Emil Kowalski) ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 15px 36px;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1.5px solid transparent;
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color 200ms var(--ease-out),
              border-color 200ms var(--ease-out),
              color 200ms var(--ease-out),
              transform 160ms var(--ease-out);
}

.btn:active {
  transform: scale(0.97);
}

.btn-sm {
  padding: 11px 24px;
  min-height: 44px;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background-color: var(--charcoal);
  color: var(--white);
}

.btn-outline {
  background-color: transparent;
  color: var(--charcoal);
  border-color: var(--border-strong);
}

.btn-accent {
  background-color: var(--accent);
  color: var(--white);
}

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    background-color: #2e2e2e;
  }
  .btn-outline:hover {
    border-color: var(--charcoal);
  }
  .btn-accent:hover {
    background-color: var(--accent-dark);
  }
}

/* ---------------- 2. Mobile Bottom Sheet ---------------- */
.sheet-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(28, 28, 28, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 190;
  opacity: 0;
  pointer-events: none;
  transition: opacity 320ms var(--ease-out);
}

.sheet-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.bottom-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 200;
  background-color: var(--white);
  border-radius: 24px 24px 0 0;
  padding: 16px 24px 36px;
  box-shadow: 0 -8px 40px rgba(28, 28, 28, 0.14);
  transform: translateY(100%);
  transition: transform 360ms var(--ease-out);
}

.bottom-sheet.active {
  transform: translateY(0);
}

.sheet-handle {
  width: 40px;
  height: 4px;
  background-color: var(--border-strong);
  border-radius: 10px;
  margin: 0 auto 24px;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  margin-bottom: 24px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  min-height: 52px;
  font-family: var(--font-serif);
  font-size: 26px;
  color: var(--charcoal);
  border-bottom: 1px solid var(--border);
}

/* ---------------- 4. Карточки «Для кого» ---------------- */
.for-whom-card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.for-whom-problem {
  font-size: 17px;
  font-weight: 500;
  color: var(--charcoal);
}

.for-whom-solution {
  font-size: 15px;
  color: var(--mid-gray);
  display: flex;
  gap: 8px;
}

.arrow-icon {
  color: var(--accent-dark);
  font-weight: 500;
  flex-shrink: 0;
}

/* ---------------- 5. Карточки форматов пилатеса ---------------- */
.pricing-card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 36px 32px;
  box-shadow: 0 4px 24px var(--shadow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 240ms var(--ease-out),
              box-shadow 240ms var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px var(--shadow-hover);
  }
}

.pricing-title {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 400;
  margin-bottom: 12px;
}

.pricing-amount {
  font-size: 32px;
  font-weight: 400;
  color: var(--charcoal);
  line-height: 1.15;
}

.pricing-amount span {
  font-size: 16px;
  font-weight: 300;
  color: var(--mid-gray);
}

.pricing-sub {
  font-size: 13px;
  color: var(--mid-gray);
  margin-top: 4px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.pricing-features li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
}

.pricing-features li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--accent-dark);
  font-weight: 700;
}

/* Пробное занятие */
.trial-block {
  max-width: 580px;
  margin: 0 auto;
  text-align: center;
  padding: 36px 24px;
  border-top: 1px solid var(--border);
}

.trial-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 400;
  margin-bottom: 12px;
}

.trial-text {
  color: var(--mid-gray);
  margin-bottom: 28px;
}

/* ---------------- 6. Видео-карточки зарядок ---------------- */
.video-card {
  background-color: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.video-slot {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #E2D9CE;
}

.video-preview {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--charcoal);
}

.play-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  padding-left: 3px;
  box-shadow: 0 4px 14px var(--shadow);
}

.video-iframe {
  width: 100%;
  height: 100%;
  border: 0;
  animation: fadeInIframe 350ms var(--ease-out) forwards;
}

@keyframes fadeInIframe {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.video-info {
  padding: 18px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.video-title {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 4px;
}

.video-meta {
  font-size: 13px;
  color: var(--mid-gray);
  margin-bottom: 16px;
}

.video-buttons {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.btn-video {
  min-height: 44px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  font-size: 12px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background-color 180ms var(--ease-out),
              color 180ms var(--ease-out),
              transform 160ms var(--ease-out);
}

.btn-video:active {
  transform: scale(0.97);
}

.btn-video.active {
  background-color: var(--charcoal);
  color: var(--white);
  border-color: var(--charcoal);
}

@media (hover: hover) and (pointer: fine) {
  .btn-video:hover {
    border-color: var(--charcoal);
  }
}

/* Плашка платного доступа к зарядкам */
.paid-access-banner {
  background-color: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: clamp(32px, 5vw, 52px) 24px;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.paid-access-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 400;
  margin-bottom: 8px;
}

.paid-access-meta {
  font-size: 14px;
  color: var(--mid-gray);
  margin-bottom: 20px;
}

.paid-access-price {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 400;
  line-height: 1;
  margin-bottom: 24px;
}

/* ---------------- 7. Бэйджи фактов об Алёне ---------------- */
.fact-badge {
  background-color: var(--accent-light);
  border-radius: 16px;
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.fact-title {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 400;
  line-height: 1.1;
}

.fact-desc {
  font-size: 13px;
  color: var(--mid-gray);
}

/* ---------------- 8. Карусель отзывов ---------------- */
.carousel-viewport {
  max-width: 1240px;
  margin: 0 auto;
  padding: 8px 24px 0;
  overflow: hidden;
  touch-action: pan-y;
}

.carousel-track {
  display: flex;
  gap: 24px;
  transition: transform 700ms var(--ease-out);
  will-change: transform;
}

.review-card {
  flex: 0 0 calc((100% - 48px) / 3);
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  transform: scale(0.95);
  opacity: 0.6;
  transition: transform 700ms var(--ease-out),
              opacity 700ms var(--ease-out),
              box-shadow 700ms var(--ease-out);
}

.review-card.is-center {
  transform: scale(1);
  opacity: 1;
  box-shadow: 0 8px 28px var(--shadow);
}

.review-quote {
  font-size: 15px;
  line-height: 1.65;
  color: var(--charcoal);
}

.author-name {
  font-size: 15px;
  font-weight: 500;
}

.author-tenure {
  font-size: 13px;
  color: var(--mid-gray);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--border-strong);
  transition: width 300ms var(--ease-out), background-color 300ms var(--ease-out);
}

.dot.active {
  width: 22px;
  border-radius: 10px;
  background-color: var(--charcoal);
}

@media (max-width: 960px) {
  .review-card {
    flex: 0 0 100%;
  }
}

/* ---------------- 9. Форма записи (#signup) ---------------- */
.signup-col-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 400;
  margin-bottom: 12px;
}

.signup-col-desc {
  font-size: 15px;
  color: var(--mid-gray);
  margin-bottom: 24px;
}

.direct-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.signup-form-wrapper {
  background-color: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: clamp(24px, 4vw, 44px);
}

.signup-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}

@media (max-width: 480px) {
  .form-row-2 {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--charcoal);
  margin-bottom: 4px;
}

/* Обязательное правило: font-size 16px и min-height 44px */
.form-input {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  font-size: 16px;
  background-color: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  transition: border-color 200ms ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--charcoal);
}

/* Pill-выбор */
.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill-option {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  background-color: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 400;
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
  transition: all 200ms var(--ease-out);
}

.pill-option:active {
  transform: scale(0.97);
}

.pill-option.selected {
  background-color: var(--charcoal);
  color: var(--white);
  border-color: var(--charcoal);
}

/* Двухшаговый выбор мессенджера */
.messenger-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}

@media (max-width: 540px) {
  .messenger-selector {
    grid-template-columns: repeat(2, 1fr);
  }
}

.messenger-btn {
  min-height: 44px;
  padding: 10px 12px;
  border-radius: 12px;
  background-color: var(--white);
  border: 1.5px solid var(--border);
  font-size: 13px;
  font-weight: 500;
  transition: all 200ms var(--ease-out);
}

.messenger-btn:active {
  transform: scale(0.97);
}

.messenger-btn.selected {
  background-color: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.form-error-msg {
  font-size: 14px;
  color: #B44437;
}

/* Сообщение после отправки анкеты */
.form-success-state {
  text-align: center;
  padding: 40px 20px;
  animation: formSuccessAnim 400ms var(--ease-out) forwards;
}

@keyframes formSuccessAnim {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--accent-light);
  color: var(--charcoal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 16px;
}

.success-title {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 400;
  margin-bottom: 8px;
}

.success-text {
  color: var(--mid-gray);
}

/* ---------------- 10. Аккордеон FAQ ---------------- */
.faq-accordion {
  border-top: 1px solid var(--border);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  min-height: 64px;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  font-size: 17px;
  font-weight: 500;
  color: var(--charcoal);
}

.faq-icon {
  font-size: 22px;
  font-weight: 300;
  line-height: 1;
  color: var(--mid-gray);
  transition: transform 280ms var(--ease-out);
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 280ms var(--ease-out);
}

.faq-answer-inner {
  padding-bottom: 22px;
  color: var(--mid-gray);
  font-size: 15px;
  max-width: 680px;
}