/* === Обнуление и базовые стили === */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.7;
  color: #e8e6e3;
  background: #0f0f12;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(30, 144, 255, 0.08) 0%, transparent 30%),
    radial-gradient(circle at 90% 80%, rgba(0, 191, 165, 0.08) 0%, transparent 30%);
  min-height: 100vh;
  padding: 2rem 1rem;
}

/* === Контейнер === */
.article {
  max-width: 800px;
  margin: 0 auto;
  background: rgba(20, 20, 25, 0.85);
  backdrop-filter: blur(12px);
  border-radius: 1.5rem;
  padding: 2.5rem;
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* === Заголовки === */
h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #00d4aa, #1e90ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

h2 {
  font-size: 1.7rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: #00d4aa;
  position: relative;
  padding-left: 1.5rem;
}

h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: #00d4aa;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(0, 212, 170, 0.6);
}

/* === Текст === */
p {
  margin-bottom: 1.2rem;
  color: #d0d0d0;
  font-weight: 400;
}

p strong {
  color: #ffffff;
  font-weight: 600;
}

p em {
  color: #a0f7e0;
  font-style: italic;
}

/* === Изображения (адаптивные) === */
img {
  width: 50%;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 2rem auto;
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease, width 0.3s ease;
}

img:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 212, 170, 0.2);
}

/* === Цитаты === */
blockquote {
  margin: 2rem 0;
  padding: 1.5rem 2rem;
  background: rgba(0, 212, 170, 0.08);
  border-left: 4px solid #00d4aa;
  border-radius: 0.8rem;
  font-style: italic;
  color: #c0ffeb;
  position: relative;
  font-weight: 500;
}

blockquote::before {
  content: '“';
  font-size: 4rem;
  color: #00d4aa;
  position: absolute;
  left: 0.5rem;
  top: -0.5rem;
  opacity: 0.3;
}

blockquote cite {
  display: block;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #88f7d0;
  font-weight: 600;
  font-style: normal;
}

/* === Списки === */
ul, ol {
  margin: 1.5rem 0;
  padding-left: 1.8rem;
}

li {
  margin-bottom: 0.7rem;
  position: relative;
  color: #e0e0e0;
}

ul li::marker {
  color: #00d4aa;
}

ol {
  counter-reset: list-counter;
}

ol li {
  counter-increment: list-counter;
}

ol li::before {
  content: counter(list-counter) ".";
  color: #00d4aa;
  font-weight: bold;
  position: absolute;
  left: -1.8rem;
  width: 1.8rem;
  text-align: right;
}

/* === Таблицы === */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.95rem;
  background: rgba(15, 15, 20, 0.6);
  border-radius: 0.8rem;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

th, td {
  padding: 1rem 1.2rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

th {
  background: rgba(0, 212, 170, 0.15);
  color: #00d4aa;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
}

td {
  color: #e0e0e0;
}

tr:hover td {
  background: rgba(0, 212, 170, 0.05);
  transition: background 0.2s ease;
}

/* === Горизонтальная линия === */
hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(0, 212, 170, 0.3), transparent);
  margin: 3rem 0;
}

/* === Блок "Next articles" === */
.next-article {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px dashed rgba(0, 212, 170, 0.3);
}

.next-article h2 {
  font-size: 1.5rem;
  color: #88f7d0;
  margin-bottom: 1.5rem;
  text-align: center;
}

.next-article ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.next-article li {
  margin: 0;
}

.next-article a {
  display: block;
  padding: 1rem 1.2rem;
  background: rgba(30, 35, 40, 0.6);
  border: 1px solid rgba(0, 212, 170, 0.2);
  border-radius: 0.8rem;
  color: #d0f7e8;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  font-size: 0.95rem;
  position: relative;
  overflow: hidden;
}

.next-article a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 170, 0.1), transparent);
  transition: left 0.6s ease;
}

.next-article a:hover {
  background: rgba(0, 212, 170, 0.12);
  border-color: #00d4aa;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 212, 170, 0.15);
}

.next-article a:hover::before {
  left: 100%;
}

/* === Адаптивность === */
@media (max-width: 1024px) {
  img {
    width: 60%;
  }
}

@media (max-width: 768px) {
  .article {
    padding: 2rem;
    border-radius: 1rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  img {
    width: 70%;
  }

  .next-article ul {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  body {
    padding: 1rem;
  }

  .article {
    padding: 1.5rem;
  }

  blockquote {
    padding: 1.2rem 1.5rem;
  }

  img {
    width: 90%;
  }
}

/* === Плавные анимации === */
* {
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}