/* =============================================
   EMUI.ru — components.css
   Features, Timeline, Checker, News, FAQ, Footer
   ============================================= */

/* =============================================
   FEATURES SECTION
   ============================================= */
.features {
  padding: clamp(4rem, 8vw, 7rem) 0;
  background: var(--color-bg-alt);
  position: relative;
  overflow: hidden;
}
.features::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  cursor: default;
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.03) 100%);
  pointer-events: none;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--card-color, var(--color-accent-blue));
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--card-color) 12%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.1rem;
  transition: transform 0.3s ease;
}
.feature-card:hover .feature-icon { transform: scale(1.08) rotate(-3deg); }
.feature-icon i {
  font-size: 1.2rem;
  color: var(--card-color, var(--color-accent-blue));
}

.feature-title {
  font-family: 'Sora', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.55rem;
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.feature-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 100%;
  height: 3px;
  background: var(--card-color, var(--color-accent-blue));
  border-radius: 0 2px 0 0;
  transition: right 0.4s ease;
}
.feature-card:hover .feature-bar { right: 0; }

@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .features-grid { grid-template-columns: 1fr; }
}

/* =============================================
   TIMELINE SECTION
   ============================================= */
.timeline-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  background: var(--color-bg);
  overflow: hidden;
}

.timeline-scroll-wrap {
  overflow-x: auto;
  padding-bottom: 1rem;
  cursor: grab;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-strong) transparent;
}
.timeline-scroll-wrap:active { cursor: grabbing; }

.timeline-track {
  display: flex;
  gap: 1.25rem;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
  min-width: max-content;
  align-items: stretch;
}

.timeline-card {
  width: 220px;
  flex-shrink: 0;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  position: relative;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.timeline-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-violet);
}

.timeline-badge {
  position: absolute;
  top: -1px;
  right: 16px;
  font-family: 'Sora', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--gradient-logo);
  color: #fff;
  padding: 0.2rem 0.65rem;
  border-radius: 0 0 8px 8px;
}

.timeline-year {
  font-family: 'Sora', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.timeline-version {
  font-family: 'Sora', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient-logo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.timeline-android {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: 0.4rem;
}

.timeline-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1;
  margin-bottom: 0.75rem;
}
.timeline-features li {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  padding-left: 0.9rem;
  position: relative;
}
.timeline-features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent-teal);
  font-size: 0.75rem;
}

.timeline-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'Sora', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-accent-blue);
  margin-top: auto;
  transition: gap 0.2s;
  text-decoration: none;
}
.timeline-link:hover { gap: 0.65rem; }
.timeline-link i { font-size: 0.7rem; transition: transform 0.2s; }
.timeline-link:hover i { transform: translateX(3px); }

.timeline-card-latest {
  background: linear-gradient(135deg, rgba(244,114,182,0.05) 0%, rgba(167,139,250,0.07) 50%, rgba(96,165,250,0.05) 100%);
  border-color: rgba(167,139,250,0.3);
}

/* =============================================
   CHECKER SECTION
   ============================================= */
.checker-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  background: var(--color-bg-alt);
  position: relative;
  overflow: hidden;
}
.checker-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.checker-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.checker-text .section-title { text-align: left; }
.checker-text .section-sub { text-align: left; }
.checker-text .section-label { display: block; text-align: left; }

.checker-ui {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
}

.checker-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

/* Обёртка поля + иконки — отдельный relative-контейнер,
   чтобы иконка всегда позиционировалась внутри инпута */
.checker-field {
  position: relative;
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
}

.checker-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 0.85rem;
  pointer-events: none;
  z-index: 1;
}

.checker-input {
  width: 100%;
  height: 48px;
  padding: 0 1rem 0 2.7rem;
  border: 1.5px solid var(--color-border);
  border-radius: 50px;
  background: var(--color-bg-alt);
  color: var(--color-text-primary);
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.checker-input:focus {
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 3px rgba(96,165,250,0.15);
}
.checker-input::placeholder { color: var(--color-text-muted); }

.checker-btn {
	align-items: center;
  height: 48px;
  padding: 0 1.3rem;
  background: var(--gradient-logo);
  color: #fff;
  font-family: 'Sora', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.checker-btn:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 16px rgba(167,139,250,0.4);
}

.checker-suggestions {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 50;
  overflow: hidden;
  list-style: none;
  padding: 0.4rem 0;
}
.checker-suggestions li {
  padding: 0.55rem 1rem;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background 0.15s;
}
.checker-suggestions li:hover { background: var(--color-surface); color: var(--color-text-primary); }

.checker-result {
  min-height: 48px;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: all 0.3s;
  margin-bottom: 0.75rem;
}
.checker-result:empty { padding: 0; min-height: 0; }
.checker-result.result-success {
  background: rgba(45,212,191,0.08);
  border: 1px solid rgba(45,212,191,0.2);
  color: var(--color-text-primary);
}
.checker-result.result-error {
  background: rgba(251,113,133,0.08);
  border: 1px solid rgba(251,113,133,0.2);
  color: var(--color-text-primary);
}
.checker-result .result-icon { font-size: 1.2rem; flex-shrink: 0; }

.checker-popular {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.checker-popular span {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-weight: 500;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .checker-wrap { grid-template-columns: 1fr; }
  .checker-text { text-align: center; }
  .checker-text .section-title,
  .checker-text .section-sub,
  .checker-text .section-label { text-align: center; }
}

@media (max-width: 480px) {
  /* Поле и кнопка — вертикальный стек */
  .checker-input-wrap {
    flex-direction: column;
    align-items: stretch;
  }

  /* .checker-field растягивается на всю ширину (уже flex:1, но нужен width:100%) */
  .checker-field {
    width: 100%;
  }

  .checker-input {
    border-radius: var(--radius-md);
  }

  /* Кнопка — на всю ширину под полем */
  .checker-btn {
	  align-items: center;
    width: 100%;
    border-radius: var(--radius-md);
    justify-content: center;
    display: flex;
  }
}

/* =============================================
   NEWS SECTION
   ============================================= */
.news-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  background: var(--color-bg);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.news-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}
.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-strong);
}
.news-card-link { display: block; text-decoration: none; color: inherit; }

.news-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--color-surface);
}
.news-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.news-card:hover .news-img { transform: scale(1.05); }

/* Placeholder when no image */
.news-img-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-alt) 100%);
}
.news-img { position: relative; z-index: 1; }

.news-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  font-family: 'Sora', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--gradient-logo);
  color: #fff;
  padding: 0.25rem 0.65rem;
  border-radius: 50px;
}

.news-body { padding: 1.25rem; }

.news-title {
  font-family: 'Sora', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
  transition: color 0.2s;
}
.news-card:hover .news-title { color: var(--color-accent-blue); }

.news-date {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 0.6rem;
}

.news-excerpt {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 900px) { .news-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .news-grid { grid-template-columns: 1fr; } }

/* =============================================
   FAQ SECTION
   ============================================= */
.faq-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  background: var(--color-bg-alt);
  position: relative;
}
.faq-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.faq-list {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.faq-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.faq-item:has(.faq-question[aria-expanded="true"]) {
  border-color: rgba(167,139,250,0.35);
  box-shadow: 0 2px 12px rgba(167,139,250,0.1);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Sora', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color 0.2s;
}
.faq-question:hover { color: var(--color-accent-violet); }
.faq-question[aria-expanded="true"] { color: var(--color-accent-violet); }

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.3s;
}
.faq-icon i { font-size: 0.65rem; color: var(--color-text-muted); transition: color 0.2s; }
.faq-question[aria-expanded="true"] .faq-icon {
  background: rgba(167,139,250,0.12);
  transform: rotate(180deg);
}
.faq-question[aria-expanded="true"] .faq-icon i { color: var(--color-accent-violet); }

.faq-answer {
  padding: 0 1.25rem 1.1rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  animation: faqOpen 0.3s ease;
}
.faq-answer a {
  color: var(--color-accent-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.faq-answer a:hover { color: var(--color-accent-violet); }
.faq-answer strong { color: var(--color-text-primary); font-weight: 600; }

@media (prefers-reduced-motion: no-preference) {
  @keyframes faqOpen {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: none; }
  }
}

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: clamp(3rem, 6vw, 5rem) 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem clamp(1.5rem, 3vw, 3rem);
  margin-bottom: 3rem;
}

.footer-brand {}

.footer-logo { display: inline-flex; margin-bottom: 0.85rem; transition: opacity 0.2s; }
.footer-logo:hover { opacity: 0.8; }

.footer-tagline {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 280px;
}

.footer-nav-title {
  font-family: 'Sora', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.footer-nav ul { display: flex; flex-direction: column; gap: 0.55rem; list-style: none; }
.footer-nav a {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  transition: color 0.18s, padding-left 0.18s;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.footer-nav a:hover { color: var(--color-accent-blue); padding-left: 4px; }
.footer-nav a i { font-size: 0.65rem; opacity: 0.6; }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  opacity: 0.7;
  max-width: 480px;
  text-align: right;
}

@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-disclaimer { text-align: center; }
}
@media (min-width: 1800px) {
  .timeline-track {
    min-width: unset;
    justify-content: center;
  }
}