/* ====================== GLOBAL STYLES ====================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: #f8fafc;
    color: #1e2937;
    line-height: 1.6;
}

/* ====================== ШАПКА ====================== */
nav {
    background-color: white;
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

nav .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: #2563eb;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* ====================== КНОПКИ ====================== */
.btn {
    padding: 0.75rem 1.75rem;
    border-radius: 9999px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background-color: #2563eb;
    color: white;
}

.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: white;
    color: #2563eb;
    border: 2px solid #2563eb;
}

.btn-outline:hover {
    background-color: #eff6ff;
}

/* ====================== КАРТОЧКИ ====================== */
.card {
    background-color: white;
    border-radius: 24px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    padding: 2rem;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

/* ====================== АДАПТИВ ====================== */
@media (max-width: 768px) {
    nav .container {
        padding: 1rem 1rem;
    }
    
    h1 {
        font-size: 1.875rem;
    }
}