/* Общие стили */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', Arial, sans-serif; background: #f5f7fa; color: #1a1a1a; }

/* Хедер и навигация */
.header { background: linear-gradient(135deg, #1a3a5c, #1a73e8); color: white; padding: 20px; text-align: center; }
.header h1 { font-size: 24px; margin-bottom: 10px; }
.nav { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-top: 15px; }
.nav a { color: white; text-decoration: none; font-size: 15px; padding: 8px 16px; border-radius: 6px; transition: background 0.2s; }
.nav a:hover { background: rgba(255,255,255,0.2); }

/* Карточки и контент */
.container { max-width: 900px; margin: 30px auto; padding: 0 20px; }
.card { background: white; border-radius: 12px; padding: 24px; box-shadow: 0 2px 8px rgba(0,0,0,0.06); margin-bottom: 20px; }
.card h2 { color: #1a3a5c; margin-bottom: 15px; font-size: 20px; }
.card p { color: #444; line-height: 1.6; margin-bottom: 15px; }

/* Кнопки */
.btn { display: inline-block; padding: 12px 24px; border-radius: 8px; text-decoration: none; font-weight: 500; cursor: pointer; border: none; font-size: 15px; }
.btn-blue { background: #1a73e8; color: white; }
.btn-blue:hover { background: #1557b0; }
.btn-outline { background: white; color: #1a73e8; border: 2px solid #1a73e8; }
.btn-outline:hover { background: #e8f0fe; }

/* Сетка карточек */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; }
.stat-card { background: white; border-radius: 12px; padding: 20px; text-align: center; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.stat-title { color: #1a73e8; font-size: 14px; margin-bottom: 10px; font-weight: 600; }
.stat-value { font-size: 28px; font-weight: bold; color: #d32f2f; }
.stat-sub { font-size: 12px; color: #888; margin-top: 5px; }

/* Таблицы */
table { width: 100%; border-collapse: collapse; margin-top: 15px; font-size: 14px; }
th, td { padding: 12px; text-align: center; border-bottom: 1px solid #eee; }
th { background: #f0f4ff; color: #1a3a5c; font-weight: 600; }

/* Футер */
.footer { text-align: center; padding: 30px 20px; color: #888; font-size: 13px; }