/* ============================================
   ОСНОВНОЙ КОНТЕЙНЕР
   ============================================ */
.main-layout {
  max-width: 1400px;
  margin: 0 auto;
}

/* ============================================
   ШАПКА (HEADER)
   ============================================ */
.header {
  text-align: center;
  margin-bottom: 30px;
  padding: 20px 25px;
  background: linear-gradient(
    -45deg,
    #001f3f,
    #0074d9,
    #39cccc,
    #3d9970,
    #7fdbff,
    #01ff70,
    #003366,
    #0080ff
  );
  background-size: 800% 800%;
  animation: gradientShift 1440s ease infinite;
  border-radius: var(--radius-lg);
  box-shadow:
    var(--shadow-md),
    0 15px 40px rgba(0, 31, 63, 0.2),
    0 25px 60px rgba(0, 116, 217, 0.15);
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.3);
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.header::after {
  content: "";
  position: absolute;
  bottom: -50px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 100px;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 31, 63, 0.1) 0%,
    rgba(0, 116, 217, 0.08) 25%,
    rgba(57, 204, 204, 0.06) 50%,
    rgba(61, 153, 112, 0.04) 75%,
    transparent 100%
  );
  filter: blur(30px);
  z-index: var(--z-bg);
  animation: bottomShadow 10s ease-in-out infinite alternate;
}

@keyframes bottomShadow {
  0% {
    opacity: 0.5;
    transform: translateX(-50%) scale(1);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) scale(1.1);
  }
}

.header-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  gap: 8px;
  position: relative;
  z-index: var(--z-default);
}

/* Логотип */
#logo {
  display: block;
  width: 60px;
  height: 60px;
  margin: 0 auto 15px;
  background: url("../instructions/images/logo.webp") center/cover no-repeat;
  border-radius: 50%;
  text-decoration: none;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid rgba(255, 255, 255, 0.7);
  z-index: var(--z-default);
}

#logo:hover {
  transform: scale(1.05) rotate(3deg);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
  border-color: rgba(255, 255, 255, 0.9);
}

/* Заголовки в шапке */
.main-title {
  font-family: "Montserrat", sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--white);
  margin: 0;
  letter-spacing: 0.5px;
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  background: rgba(0, 0, 0, 0.2);
  padding: 8px 20px;
  border-radius: 25px;
  backdrop-filter: blur(5px);
}

.site-subtitle {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  margin: 0;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: rgba(0, 0, 0, 0.2);
  padding: 6px 16px;
  border-radius: var(--radius-xl);
  backdrop-filter: blur(5px);
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

/* ============================================
   ФУТЕР
   ============================================ */
.footer {
  text-align: center;
  margin-top: 40px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(5px);
  position: relative;
}

.footer p {
  color: rgba(44, 62, 80, 0.8);
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(44, 62, 80, 0.8);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  background-color: rgba(0, 0, 0, 0.03);
}

.footer-link:hover {
  color: #0074d9;
  background-color: rgba(0, 116, 217, 0.1);
  transform: translateY(-2px);
}

.contact-email {
  margin: 10px 0;
  font-size: 0.9rem;
}

.contact-email a {
  color: #0088cc;
  text-decoration: none;
  transition: color var(--transition-base);
}

.contact-email a:hover {
  color: #005a8e;
  text-decoration: underline;
}

.creation-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: #666;
  text-decoration: none;
  padding: 4px 12px;
  border: 1px solid #ccc;
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  background-color: white;
  letter-spacing: 0.3px;
  margin-top: 20px;
}

.creation-link:hover {
  color: #0088cc;
  border-color: #0088cc;
  background-color: #f0f9ff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.arrow {
  font-size: 14px;
  line-height: 1;
  transition: transform 0.2s ease;
}

.creation-link:hover .arrow {
  transform: translate(2px, -2px);
}

/* ============================================
   БЛОКИ И ГРИДЫ
   ============================================ */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 20px;
  animation: fadeIn 0.4s ease;
}

/* Пагинация */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.pagination button {
  padding: 10px 16px;
  border: none;
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  color: var(--text-dark);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.pagination button:hover {
  background: var(--white);
  transform: translateY(-2px);
}

.pagination button.active {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: var(--white);
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.4);
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ============================================
   КНОПКИ
   ============================================ */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 6px rgba(79, 70, 229, 0.2);
}

.btn-secondary {
  background: var(--white);
  color: #374151;
  border: 1px solid var(--border-color, #e5e7eb);
}

.btn-secondary:hover {
  background: #f9fafb;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #4ecdc4;
  text-decoration: none;
  font-size: 1.1rem;
  padding: 12px 25px;
  background: rgba(78, 205, 196, 0.1);
  border-radius: 25px;
  transition: all var(--transition-base);
  border: 1px solid rgba(78, 205, 196, 0.2);
}

.back-link:hover {
  background: rgba(78, 205, 196, 0.2);
  transform: translateX(-5px);
  box-shadow: 0 4px 12px rgba(78, 205, 196, 0.2);
}