/* ===== Страница «О проекте» ===== */

/* Hero-секция */
.about-hero {
  padding: 140px 20px 80px;
  text-align: center;
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  border-bottom: 1px solid var(--color-border);
}

.about-hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-accent), #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Секции */
.about-section {
  padding: 80px 20px;
}

.about-section--alt {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.about-section__title {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 24px;
  text-align: center;
}

.about-section__lead {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.about-section__content {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text);
}

.about-section__content p {
  margin-bottom: 20px;
}

.about-section__content p:last-child {
  margin-bottom: 0;
}

/* Сетка технологий */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  max-width: 900px;
  margin: 0 auto 40px;
}

.tech-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 32px 24px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.tech-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.tech-card__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.tech-card__text {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Примечание */
.about-note {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 28px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  text-align: center;
}

/* Компактный список возможностей */
.features-compact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.feature-compact {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-compact:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.feature-compact__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  background: var(--color-bg);
  border-radius: var(--border-radius-sm);
}

.feature-compact__title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.feature-compact__text {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Контакты */
.contact-links {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 32px 40px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--color-text);
  min-width: 200px;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
  border-color: var(--color-accent);
  color: var(--color-text);
}

.contact-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-bg);
  color: var(--color-accent);
  font-size: 1.5rem;
}

.contact-card__icon svg {
  width: 32px;
  height: 32px;
}

.contact-card__title {
  font-size: 1.1rem;
  font-weight: 600;
}

.contact-card__text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* ===== Адаптив ===== */
/* Mobile (< 375px) */
@media (max-width: 374px) {
  .about-hero {
    padding: 110px 16px 50px;
  }

  .about-section {
    padding: 50px 16px;
  }

  .contact-card {
    padding: 24px 28px;
  }
}

/* Mobile (375px–767px) */
@media (min-width: 375px) and (max-width: 767px) {
  .about-hero {
    padding: 110px 20px 60px;
  }

  .about-section {
    padding: 60px 20px;
  }

  .tech-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .features-compact {
    grid-template-columns: 1fr;
  }

  .contact-links {
    flex-direction: column;
    align-items: center;
  }

  .contact-card {
    width: 100%;
    max-width: 320px;
  }

  .about-note {
    padding: 20px;
  }
}

/* Tablet (768px–1199px) */
@media (min-width: 768px) and (max-width: 1199px) {
  .tech-grid {
    gap: 24px;
    grid-template-columns: repeat(3, 1fr);
  }

  .features-compact {
    gap: 16px;
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop (>= 1200px) */
@media (min-width: 1200px) {
  .tech-grid {
    gap: 28px;
  }

  .features-compact {
    gap: 20px;
  }
}